Pulsato generating system

Claim 2

A pulsato generating system comprising: (I) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on an input signal; (II) a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals; and (III) first and second speakers respectively supplied with the first and second phase rotating signals; (IV) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the input signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the low-frequency control signal and which are sequentially phase π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3π/2-phase gate signals to obtain first and second intermittent π/2-signals; (d) a modulating signal generator for producing from the control signal 0-phase and π-phase sine-wave modulating signals having the same frequency as the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing first, second and third composite signals, as the first, second and third sequentially phase inverting signals, the first composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the third composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted; and (V) the phase rotating signal generator having first and second synthesizing circuits for producing fourth and fifth composite signals as the first and second phase rotating signals, respectively, the fourth composite signal being composed of the first and third sequentially phase inverting signals and the fifth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 3

A pulsato generating system according to claim 1, which further comprises a third speaker supplied with the input signal.

Claim 4

A pulsato generating system comprising: (I) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on an input signal; and (II) first, second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (III) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the input signal 0-phase and π/2-phase signals displaced 90/2 in phase apart from each other; (b) a gate signal generator for producing, from a low-frequency control signal , 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the low-frequency control signal and which are sequentially phased π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing from the control signal 0-phase and π-phase sine-wave modulating signals having the same frequency as the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing first, second and third composite signals, as the first, second and third sequentially phase inverting signals, the first composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the third composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.

Claim 5

A pulsato generating system comprising: (I) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on an input signal; and (II) first, second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (III) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the input signal 0-phase and π/2-phase signals displaced 90/2 in phase apart from each other; (b) a gate signal generator for producing, from a low-frequency control signal , 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the low-frequency control signal and which are sequentially phased π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing from the control signal 0-phase and π-phase sine-wave modulating signals having the same frequency as the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing first, second and third composite signals, as the first, second and third sequentially phase inverting signals, the first composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the third composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.

Claim 6

A signal generator for pulsato comprising: (I) a phase shifter for obtaining from the output signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (II) a gate signal generator for producing, from a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the low-frequency control signal and which are sequentially phased π/2 apart; (III) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (IV) a modulating signal generator for producing from the control signal 0-phase and π-phase sine-wave modulating signals having the same frequency as the control signal and phased π apart from each other; and (V) amplitude modulating and synthesizing means for producing first, second and third composite signals, as the first, second and third sequentially phase inverting signals, the first composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the third composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermitten π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted;

Claim 7

A signal generator for pulsato comprising: (I) a phase shifter for obtaining from the output signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (II) a gate signal generator for producing, from a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the low-frequency control signal and which are sequentially phased π/2 apart; (III) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (IV) a modulating signal generator for producing from the control signal 0-phase and π-phase sine-wave modulating signals having the same frequency as the control signal and phased π apart from each other; and (V) amplitude modulating and synthesizing means for producing first, second and third composite signals, as the first, second and third sequentially phase inverting signals, the first composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the third composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermitten π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted;

Claim 8

A signal generator for pulsate according to claim 4, which further comprises a phase rotating signal generator having first and second synthesizing circuits for producing fourth and fifth composite signals as first and second phase rotating signals, respectively, the fourth composite signal being composed of the first and third sequentially phase inverting signals and the fifth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 9

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; (III) a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals; and (IV) first and second speakers respectively supplied with the first and second phase rotating signals; (V) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal wave modulating signal of a low frequency to produce a first frequency-modulated signal; and (b) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first frequency-modulated signal and the input signal; (VI) the sequentially phase inverting signal generating including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of the first modulating signal and the low-frequency control signal and which are sequentially phase π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and the 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from the selected one of the first modulating signal and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected one of the first modulating signal and the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals, as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted; and (VII) the phase rotating signal generator having second and third synthesizing circuits for producing fifth and sixth composite signals as the first and second phase rotating signals, respectively, the fifth composite signal being composed of the first and third sequentially phase inverting signals and the sixth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 10

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; (III) a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals; and (IV) first and second speakers respectively supplied with the first and second phase rotating signals; (V) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal wave modulating signal of a low frequency to produce a first frequency-modulated signal; and (b) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first frequency-modulated signal and the input signal; (VI) the sequentially phase inverting signal generating including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of the first modulating signal and the low-frequency control signal and which are sequentially phase π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and the 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from the selected one of the first modulating signal and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected one of the first modulating signal and the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals, as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted; and (VII) the phase rotating signal generator having second and third synthesizing circuits for producing fifth and sixth composite signals as the first and second phase rotating signals, respectively, the fifth composite signal being composed of the first and third sequentially phase inverting signals and the sixth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 11

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; (III) a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals; and (IV) first and second speakers respectively supplied with the first and second phase rotating signals; (V) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal wave modulating signal of a low frequency to produce a first frequency-modulated signal; (b) a second frequency modulating circuit for frequency modulating the input signal by a second sinusoidal-wave modulating signal to produce a second frequency-modulating signal; and (c) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first and second frequency-modulated signals and the input signal; (VI) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal, the second modulating signal, and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of the signals and sequentially phased π/2apart; (c) gating means for gating the 0-phase signals by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from a selected one of the first modulating signal, the second modulating signal, and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted; and (VII) the phase rotating signal generator having second and third synthesizing circuits for producing fifth and sixth composite signals as the first and second phase rotating signals, respectively, the fifth composite signal being composed of the first and third sequentially phase inverting signals and the sixth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 12

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; (III) a phase rotating signal generator for producing first and second phase rotating signals based on the first, second and third sequentially phase inverting signals; and (IV) first and second speakers respectively supplied with the first and second phase rotating signals; (V) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal wave modulating signal of a low frequency to produce a first frequency-modulated signal; (b) a second frequency modulating circuit for frequency modulating the input signal by a second sinusoidal-wave modulating signal to produce a second frequency-modulating signal; and (c) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first and second frequency-modulated signals and the input signal; (VI) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal, the second modulating signal, and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of the signals and sequentially phased π/2apart; (c) gating means for gating the 0-phase signals by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from a selected one of the first modulating signal, the second modulating signal, and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted; and (VII) the phase rotating signal generator having second and third synthesizing circuits for producing fifth and sixth composite signals as the first and second phase rotating signals, respectively, the fifth composite signal being composed of the first and third sequentially phase inverting signals and the sixth composite signal being composed of the second and third sequentially phase inverting signals.

Claim 13

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; and (III) first second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (IV) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal-wave modulating signal of a low frequency to produce a first frequency-modulated signal; and (b) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first frequency-modulated signal and the input signal; and (V) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal and a low-frequency control signal, 0-phase π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of first modulating signal and the low-frequency control signal and which are sequentially phase π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from the inverted one of the first modulating signal and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected one of the first modulating signal and the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals, as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.

Claim 14

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; and (III) first second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (IV) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal-wave modulating signal of a low frequency to produce a first frequency-modulated signal; and (b) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first frequency-modulated signal and the input signal; and (V) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal and a low-frequency control signal, 0-phase π/2-phase, π-phase and 3 π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of first modulating signal and the low-frequency control signal and which are sequentially phase π/2 apart; (c) gating means for gating the 0-phase signal by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from the inverted one of the first modulating signal and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected one of the first modulating signal and the control signal and phased π apart from each other; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals, as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal, and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.

Claim 15

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; and (III) first, second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (IV) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal-wave modulating signal of a low frequency to produce a first frequency-modulated signal; (b) a second frequency modulating circuit for frequency modulating the input signal by a second sinusoidal-wave modulating signal to produce a second frequency-modulated signal; and (c) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first and second frequency-modulated signals and the input signal; and (V) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal, second modulating signal, and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of first or second modulating signal or the low-frequency control signal and sequentially phased π/2 apart; (c) gating means for gating the 0-phase signals by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from a selected one of the first modulating signal, or second modulating signal, and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected first or second modulating signal or control signal and phased apart from each othere; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-Phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.

Claim 16

A pulsato generating system comprising: (I) a chorus signal generator for producing a first chorus signal from an input signal; (II) a sequentially phase inverting signal generator for producing first, second and third sequentially phase inverting signals based on the first chorus signal; and (III) first, second and third speakers respectively supplied with the first, second and third sequentially phase inverting signals; (IV) the chorus signal generator including: (a) a first frequency modulating circuit for frequency modulating the input signal by a first sinusoidal-wave modulating signal of a low frequency to produce a first frequency-modulated signal; (b) a second frequency modulating circuit for frequency modulating the input signal by a second sinusoidal-wave modulating signal to produce a second frequency-modulated signal; and (c) a first synthesizing circuit for producing, as the first chorus signal, a first composite signal composed of the first and second frequency-modulated signals and the input signal; and (V) the sequentially phase inverting signal generator including: (a) a phase shifter for obtaining from the first chorus signal 0-phase and π/2-phase signals displaced π/2 in phase apart from each other; (b) a gate signal generator for producing, from a selected one of the first modulating signal, second modulating signal, and a low-frequency control signal, 0-phase, π/2-phase, π-phase and 3π/2-phase rectangular gate signals whose frequencies are 1/2 that of the selected one of first or second modulating signal or the low-frequency control signal and sequentially phased π/2 apart; (c) gating means for gating the 0-phase signals by the 0-phase and π-phase gate signals to obtain first and second intermittent 0-phase signals and for gating the π/2-phase signal by the π/2-phase and 3 π/2-phase gate signals to obtain first and second intermittent π/2-phase signals; (d) a modulating signal generator for producing, from a selected one of the first modulating signal, or second modulating signal, and the control signal, 0-phase and π-phase sine-wave modulating signals having the same frequency as the selected first or second modulating signal or control signal and phased apart from each othere; and (e) amplitude modulating and synthesizing means for producing second, third and fourth composite signals as the first, second and third sequentially phase inverting signals, the second composite signal having such a mode of signal that a first intermittent 0-phase amplitude-modulated signal and a first intermittent π-phase amplitude-modulated signal are combined with each other, the first intermittent 0-Phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the first intermittent π-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the third composite signal having such a mode of signal that a second intermittent π-phase amplitude-modulated signal and a second intermittent 0-phase amplitude-modulated signal are combined with each other, the second intermittent π-phase amplitude-modulated signal being a signal that the first intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal and phase inverted, the second intermittent 0-phase amplitude-modulated signal being a signal that the second intermittent 0-phase signal is amplitude modulated by the 0-phase modulating signal, the fourth composite signal having such a mode of signal that an intermittent π/2-phase amplitude-modulated signal and an intermittent 3 π/2-phase amplitude-modulated signal are combined with each other, the intermittent π/2-phase amplitude-modulated signal being a signal that the first intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and the intermittent 3 π/2-phase amplitude-modulated signal being a signal that the second intermittent π/2-phase signal is amplitude modulated by the π-phase modulating signal and phase inverted.