EP0043652A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Sampled signal generation circuit
Assignee: Toshiba Corp
•
Filing: 1981-06-11
•
Granted: —
•
Expires: 2001-06-11
Abstract
Abstract A sampled data generation circuit includes a voltage controlled oscillator (12) for producing an output signal with a frequency variable according to a control voltage, a sample and hold circuit (10) for sampling and holding an analog input signal in response to the output signal from the voltage controlled oscillator (12), and a control circuit (14) for detecting the difference between two successive sampled data generated from the sample and hold circuit (10) and supplying the voltage controlled oscillator (12) with an output signal corresponding to the difference as the control voltage, thereby controlling the voltage controlled oscillator (12) so that the greater the difference, the higher the frequency of the output signal from the voltage controlled oscillator (12) is.
Inventors
- 👤 Kazuo Kitagawa
- 👤 Kenjiro Endoh
- 👤 Hideshi Kira
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:06
CPC Classifications
G; G11; G11C; G11C27/00; G11C27/02; H; H03; H03M; H03M1/00; H03M1/12; H03M1/124; H03M1/48
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
130 words
A sampled signal generation circuit comprising signal generating means (12) and data generating means (10, 64) for successively producing data in response to an output signal from said signal generating means (12), characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said sampled data generation circuit further comprises control means (14) for detecting the difference between two data generated from said data generating means (10, 64) and supplying to said signal generating means (12) an output signal corresponding to said difference as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said difference becomes larger or smaller.
Claim 2
Dependent Claim
130 words
A sampled signal generation circuit comprising signal generating means (12) and data generating means (10, 64) for successively producing data in response to an output signal from said signal generating means (12), characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said sampled data generation circuit further comprises control means (14) for detecting the difference between two data generated from said data generating means (10, 64) and supplying to said signal generating means (12) an output signal corresponding to said difference as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said difference becomes larger or smaller.
Claim 3
Dependent Claim
41 words
A sampled signal generation circuit according to claim 1, characterized in that said data generating means is formed of a sampling circuit (10) for sampling an analog input signal in response to the output signal from said signal generating means (12).
Claim 4
Dependent Claim
75 words
A sampled signal generation circuit according to claim 1 or 2, characterized in that said control means (14) includes a difference detecting circuit (16, 20) for detecting the difference between two data successively generated from said data generating means (10) to produce an output signal corresponding to said difference, and an absolute value circuit (24) producing an output signal corresponding to the absolute value of the output signal from said difference detecting circuit (16, 20).
Claim 5
Dependent Claim
40 words
A sampled signal generation circuit according to claim 3, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 6
Dependent Claim
42 words
A sampled signal generation circuit according to claim 1 or 2, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 7
Dependent Claim
43 words
A sampled signal generation circuit according to claim 1, characterized in that said data generating means is formed of a memory circuit (64) from which stored sampled data are read out in response to the output signal from said signal generating means (12).
Claim 8
Dependent Claim
73 words
A sampled signal generation circuit according to claim 6, characterized in that said control means (14) includes a difference detecting circuit (16, 20) for detecting the difference between two data successively generated from said data generating means (10) to produce an output signal corresponding to said difference, and an absolute value circuit (24) producing an output signal corresponding to the absolute value of the output signal from said difference detecting circuit (16, 20).
Claim 9
Dependent Claim
40 words
A sampled signal generation circuit according to claim 7, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 10
Dependent Claim
126 words
A sampled signal generation circuit comprising signal generating means (12) and data generating means (10, 64) for successively producing data corresponding to an analog input signal in response to an output signal from said signal generating means (12), characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said sampled signal generation circuit further comprises control means (110) for supplying to said signal generating means (12) an output signal as said control signal corresponding to the gradient of the analog input signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said gradient becomes larger or smaller.
Claim 11
Dependent Claim
126 words
A sampled signal generation circuit comprising signal generating means (12) and data generating means (10, 64) for successively producing data corresponding to an analog input signal in response to an output signal from said signal generating means (12), characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said sampled signal generation circuit further comprises control means (110) for supplying to said signal generating means (12) an output signal as said control signal corresponding to the gradient of the analog input signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said gradient becomes larger or smaller.
Claim 12
Dependent Claim
41 words
A sampled signal generation circuit according to claim 9, characterized in that said data generating means is formed of a sampling circuit (10) for sampling an analog input signal in response to an output signal from said signal generating means (12).
Claim 13
Dependent Claim
53 words
A sampled signal generation circuit according to claim 9 or 10, characterized in that said control means (110) includes a differentiation circuit (112) for differentiating the analog input signal, and an absolute value circuit (116) producing an output signal corresponding to the absolute value of an output signal from said differentiation circuit (112).
Claim 14
Dependent Claim
34 words
A sampled signal generation circuit according to claim 11, characterized in that said control means (110) further includes a nonlinear circuit (114) for nonlinearly amplifying the output signal from said absolute value circuit (116).
Claim 15
Dependent Claim
40 words
A sampled signal generation circuit according to claim 11, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 16
Dependent Claim
70 words
A sampled signal generation circuit according to claim 9 or 10, characterized in that said control means (110) includes a gradient detecting circuit for detecting the gradient of the analog input signal on the basis of two data successively generated from said data generating means (10), and an absolute value circuit (116) producing an output signal corresponding to the absolute value of an output signal from said gradient detecting circuit.
Claim 17
Dependent Claim
34 words
A sampled signal generation circuit according to claim 14, characterized in that said control means (110) further includes a nonlinear circuit (114) for nonlinearly amplifying the output signal from said absolute value circuit (116).
Claim 18
Dependent Claim
40 words
A sampled signal generation circuit according to claim 14, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 19
Dependent Claim
39 words
A sampled signal generation circuit according to claim 9, characterized in that said data generating means is formed of a memory circuit (64) successively producing stored data in response to the output signal from said signal generating means (12).
Claim 20
Dependent Claim
51 words
A sampled signal generation circuit according to claim 17, characterized in that said control means (110) includes a differentiation circuit (112) for differentiating the analog input signal, and an absolute value circuit (116) producing an output signal corresponding to the absolute value of an output signal from said differentiation circuit (112).
Claim 21
Dependent Claim
34 words
A sampled signal generation circuit according to claim 18, characterized in that said control means (110) further includes a nonlinear circuit (114) for nonlinearly amplifying the output signal from said absolute value circuit (116).
Claim 22
Dependent Claim
39 words
A sampled signal generation circuit-according to claim 18, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 23
Dependent Claim
68 words
A sampled signal generation circuit according to claim 17, characterized in that said control means (110) includes a gradient detecting circuit for detecting the gradient of the analog input signal on the basis of two data successively generated from said data generating means (10), and an absolute value circuit (116) producing an output signal corresponding to the absolute value of an output signal from said gradient detecting circuit.
Claim 24
Dependent Claim
34 words
A sampled signal generation circuit according to claim 21, characterized in that said control means (110) further includes a nonlinear circuit (114) for nonlinearly amplifying the output signal from said absolute value circuit (116).
Claim 25
Dependent Claim
40 words
A sampled signal generation circuit according to claim 21, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 26
Dependent Claim
173 words
An analog-digital converting circuit comprising signal generating means (12), sampling means (10) for sampling an analog input signal in response to an output signal from said signal generating means (12), and analog-digital converting means (50, 52, 54, 60) for converting analog data sampled by said sampling means (10) into digital data, characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said analog-digital converting circuit further comprises local digital-analog converting means (56) for converting an output signal from said analog-digital converting means (50, 52, 54, 60) into an analog signal, and control means (14) for sampling an output signal generated from said digital-analog converting means (56) and supplying to said signal generating means (12) an output signal corresponding to the difference between two sampled data as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said difference becomes larger or smaller.
Claim 27
Dependent Claim
173 words
An analog-digital converting circuit comprising signal generating means (12), sampling means (10) for sampling an analog input signal in response to an output signal from said signal generating means (12), and analog-digital converting means (50, 52, 54, 60) for converting analog data sampled by said sampling means (10) into digital data, characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said analog-digital converting circuit further comprises local digital-analog converting means (56) for converting an output signal from said analog-digital converting means (50, 52, 54, 60) into an analog signal, and control means (14) for sampling an output signal generated from said digital-analog converting means (56) and supplying to said signal generating means (12) an output signal corresponding to the difference between two sampled data as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said difference becomes larger or smaller.
Claim 28
Dependent Claim
39 words
An analog-digital converting circuit according to claim 24, characterized in that said signal generating means (12) is formed of a voltage controlled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 29
Dependent Claim
42 words
An analog-digital converting circuit according to claim 24 or 25, further comprising a memory circuit (64) for successively storing digital signals from said analog-digital converting means (50, 52, 54, 60) in response to the output signal from said signal generating means (12).
Claim 30
Dependent Claim
175 words
An analog-digital converting circuit comprising signal generating means (12), sampling means (10) for sampling an analog input signal in response to an output signal from said signal generating means (12), and analog-digital converting means (50, 52, 54, 60) for converting analog data sampled by said sampling means (10) into a digital data, characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said analog-digital converting circuit further comprises local digital-analog converting means (57) for converting an output signal from said analog-digital converting means (50, 52, 54, 60) into an analog signal, and control means (110) for detecting the differentiation value of an output signal from said digital-analog converting means (57) and supplying to said signal generating means (12) an output signal corresponding to said differentiation value as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said differentiation value becomes larger or smaller.
Claim 31
Dependent Claim
175 words
An analog-digital converting circuit comprising signal generating means (12), sampling means (10) for sampling an analog input signal in response to an output signal from said signal generating means (12), and analog-digital converting means (50, 52, 54, 60) for converting analog data sampled by said sampling means (10) into a digital data, characterized in that said signal generating means (12) produces an output signal at a frequency variable according to a control signal, and that said analog-digital converting circuit further comprises local digital-analog converting means (57) for converting an output signal from said analog-digital converting means (50, 52, 54, 60) into an analog signal, and control means (110) for detecting the differentiation value of an output signal from said digital-analog converting means (57) and supplying to said signal generating means (12) an output signal corresponding to said differentiation value as said control signal, thereby controlling said signal generating means (12) to increase or decrease the frequency of the output signal from said signal generating means (12) according as said differentiation value becomes larger or smaller.
Claim 32
Dependent Claim
39 words
An analog-digital converting circuit according to claim 27, characterized in that said signal generating means (12) is formed of a voltage controled oscillator with a frequency controlled in accordance with the control signal generated from said control means (14).
Claim 33
Dependent Claim
42 words
An analog-digital converting circuit according to claim 27 or 28, further comprising a memory circuit (64) for successively storing digital signals from said analog-digital converting means (50, 52, 54, 60) in response to the output signal from said signal generating means (12).
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.