Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
105 words
An ultrasonic device for measuring the acceleration of a moving reflective member which comprises a complex signal converter for transmitting a periodic pulse modulated wave into a living organism, receiving a reflected signal from a moving reflective member in the living organism and converting the received signal into a complex signal, and an acceleration measurement means having a plurality of complex delay lines with delay times equal to an integral multiple of the pulse period, said acceleration measurement means calculating the acceleration of the moving reflective member from the signals output by the complex signal converter and the signals output by the complex delay lines.
Claim 2
Dependent Claim
105 words
An ultrasonic device for measuring the acceleration of a moving reflective member which comprises a complex signal converter for transmitting a periodic pulse modulated wave into a living organism, receiving a reflected signal from a moving reflective member in the living organism and converting the received signal into a complex signal, and an acceleration measurement means having a plurality of complex delay lines with delay times equal to an integral multiple of the pulse period, said acceleration measurement means calculating the acceleration of the moving reflective member from the signals output by the complex signal converter and the signals output by the complex delay lines.
Claim 3
Dependent Claim
42 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to Claim 1, wherein said acceleration measurement means is constituted as a triple-complex multiplier for calculating the triple product of a complex signal output by said complex signal converter.
Claim 4
Dependent Claim
32 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to Claim 2, wherein said triple-complex multiplier includes an averaging circuit for averaging the output of the triple-complex multiplier.
Claim 5
Dependent Claim
97 words
An ultrasonic device for measuring the accelerating of a moving reflective member according Claim 1, wherein said acceleration measurement means comprises a velocity calculator for calculating the velocity of the moving reflective member by calculating the multiplied product of the complex signal output by said complex signal converter, at least one delay line for delaying the velocity signal output by said velocity calculator by an integral multiple of the pulse-recurrence period and a difference calculator for calculating the difference between the velocity signal input to said delay line and the velocity signal output by said delay line.
Claim 6
Dependent Claim
70 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to Claim 4, wherein said velocity calculator comprises a plurality of complex delay lines having delay times equal to an integral multiple of the pulse-recurrence period, a complex calculator for calculating the conjugate product of the input and output signals of said complex delay line and an argument calculator for calculating the argument of the conjugate product.
Claim 7
Dependent Claim
33 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to either of Claim 4 and 5, wherein said velocity calculator includes an averaging circuit for averaging the complex signal.
Claim 8
Dependent Claim
43 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to any of Claims 2 to 5, further comprising a clutter filter to which the complex signal from the complex signal converter is input for removing undesirable clutter components therefrom.
Claim 9
Dependent Claim
48 words
An ultrasonic device for measuring the acceleration of a moving reflective member according any of Claims 2 to 5, further comprising a color CRT display which is brilliance-modulated to display the degree of reflection of the moving reflective member and displaying the rate of acceleration in corresponding colors.
Claim 10
Dependent Claim
37 words
An ultrasonic device for measuring the acceleration of a moving reflective member according to any of Claims 2 to 6, wherein the measured and calculated velocity information and acceleration information can be selectively displayed separately or together.