Continuous signal producing system

Claim 2

A continuous signal producing system for producing from an intermittent burst signal of several cycles a continuous signal phase locked to said intermittent burst signal, comprising means to convert said burst signal into a second intermittent signal of a frequency higher than the frequency of said burst signal in the presence of a stable local oscillator, and an automatic phase control means to produce said continuous signal phase locked to said second intermittent signal.

Claim 3

A continuous signal producing system according to claim 1, wherein said second intermittent signal contains at least 6 cycles in each intermittent burst interval.

Claim 4

A continuous signal producing system comprising means to derive a first reference signal from a low frequency converted color television modulaTed chrominance signal, means to derive from said first reference signal a second reference signal of a frequency higher than the frequency of said first reference signal in the presence of a source of a stable signal having a fixed frequency, and means to produce a continuous signal synchronized in phase and frequency to said second reference signal.

Claim 5

A continuous signal producing system comprising means to derive a first reference signal from a low frequency converted color television modulaTed chrominance signal, means to derive from said first reference signal a second reference signal of a frequency higher than the frequency of said first reference signal in the presence of a source of a stable signal having a fixed frequency, and means to produce a continuous signal synchronized in phase and frequency to said second reference signal.

Claim 6

A jitter component removing system comprising means to derive a first reference signal from a recovered low frequency band converted modulated chrominance signal including a jitter component,means to produce from said first reference signal a second reference signal of a frequency higher than the frequency of said first reference signal in the presence of a source of a stable signal having a fixed frequency, means to produce a continuous signal synchronized in phase and frequency to said second reference signal, and means to combine said modulated chrominance signal and said continuous signal to thereby remove said jitter component from said modulated chrominance signal.

Claim 7

A jitter component removing system comprising means to derive a first reference signal from a recovered low frequency band converted modulated chrominance signal including a jitter component,means to produce from said first reference signal a second reference signal of a frequency higher than the frequency of said first reference signal in the presence of a source of a stable signal having a fixed frequency, means to produce a continuous signal synchronized in phase and frequency to said second reference signal, and means to combine said modulated chrominance signal and said continuous signal to thereby remove said jitter component from said modulated chrominance signal.

Claim 8

In a system for reproducing prerecorded color television signals, said signals including modulated chrominance and color burst signal portions, apparatus for removing time variation errors in said color television signals, comprising: first modulating means for further modulating the reproduced chrominance and color burst signal portions with a preset reference signal; filter means for passing only the portion of the output of said first modulating means which is substantially equal to the sum of the frequencies of said modulated signal portions and said reference signal; gate means for detecting and passing only the portion of the output of said filter means corresponding to the burst signal portion thereof; means for generating a continuous signal synchronized to the frequency and phase of the detected and passed burst signal portion; and second modulating means for further modulating said reproduced chrominance and burst signal portions with said continuous signal.

Claim 9

In a system for reproducing prerecorded color television signals, said signals including modulated chrominance and color burst signal portions, apparatus for removing time variation errors in said color television signals, comprising: first modulating means for further modulating the reproduced chrominance and color burst signal portions with a preset reference signal; filter means for passing only the portion of the output of said first modulating means which is substantially equal to the sum of the frequencies of said modulated signal portions and said reference signal; gate means for detecting and passing only the portion of the output of said filter means corresponding to the burst signal portion thereof; means for generating a continuous signal synchronized to the frequency and phase of the detected and passed burst signal portion; and second modulating means for further modulating said reproduced chrominance and burst signal portions with said continuous signal.

Claim 10

The apparatus according to claim 5, wherein the frequency of said reference signal has a greater magnitude than the modulating frequency of said chrominance and color burst signal portions of said color television signal.