JPS5612122A - Pcm signal demodulating circuit - Google Patents

Pcm signal demodulating circuit

Info

Publication number
JPS5612122A
JPS5612122A JP8863279A JP8863279A JPS5612122A JP S5612122 A JPS5612122 A JP S5612122A JP 8863279 A JP8863279 A JP 8863279A JP 8863279 A JP8863279 A JP 8863279A JP S5612122 A JPS5612122 A JP S5612122A
Authority
JP
Japan
Prior art keywords
circuit
output
synchronizing
pulses
counter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8863279A
Other languages
Japanese (ja)
Inventor
Masayuki Matsubara
Toru Akiyama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP8863279A priority Critical patent/JPS5612122A/en
Publication of JPS5612122A publication Critical patent/JPS5612122A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/66—Digital/analogue converters
    • H03M1/82—Digital/analogue converters with intermediate conversion to time interval

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Analogue/Digital Conversion (AREA)

Abstract

PURPOSE:To attain accurate demodulation of PCM signals by providing the D/A converter of a PCM demodulating circuit with a sawtooth wave generating circuit that rises synchronizing with sampling pulses. CONSTITUTION:To input terminal 10, a PCM signal of sampling time T consisting of sampling pulse P and the following data signal D is input and pulses P are detected by sampling pulse detecting circuit 11; and the data signal is converted, synchronizing with pulses P, by series-parallel converting circuit 12 into a parallel signal, which is stored in register 13. The output of clock generating circuit 14, on the other hand, is counted by counter 15 synchronizing with pulses P and a sawtooth wave is generated by circuit 16 synchronizing with the output of counter 15. When the digital value of register 13 coincides with the output value of counter 15, coincidence circuit 17 generates an output, which is applied to sample holding circuit 18 and the output voltage of circuit 16 at that point in time is sampled and held, so that an analog voltage that corresponds to the digital input signal can be obtained from output terminal 19.
JP8863279A 1979-07-11 1979-07-11 Pcm signal demodulating circuit Pending JPS5612122A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8863279A JPS5612122A (en) 1979-07-11 1979-07-11 Pcm signal demodulating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8863279A JPS5612122A (en) 1979-07-11 1979-07-11 Pcm signal demodulating circuit

Publications (1)

Publication Number Publication Date
JPS5612122A true JPS5612122A (en) 1981-02-06

Family

ID=13948174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8863279A Pending JPS5612122A (en) 1979-07-11 1979-07-11 Pcm signal demodulating circuit

Country Status (1)

Country Link
JP (1) JPS5612122A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168327A (en) * 1982-03-29 1983-10-04 Toshiba Corp Pulse width modulating circuit
JPS59224917A (en) * 1983-06-03 1984-12-17 Hitachi Ltd Digital-analog converter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351953A (en) * 1976-09-01 1978-05-11 Motorola Inc Da converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5351953A (en) * 1976-09-01 1978-05-11 Motorola Inc Da converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58168327A (en) * 1982-03-29 1983-10-04 Toshiba Corp Pulse width modulating circuit
JPS59224917A (en) * 1983-06-03 1984-12-17 Hitachi Ltd Digital-analog converter

Similar Documents

Publication Publication Date Title
ES8204894A1 (en) Digital/analog converter with capacitor-free elimination of a.c. components
GB1161549A (en) Analog to Digital Converter
GB1465225A (en) Analogue-to-digital conversion apparatus
JPS5612122A (en) Pcm signal demodulating circuit
US2862185A (en) Electronic fm/fm to analog or digital converter
JPS6429024A (en) Digital peak detector
JPS5574238A (en) Digital-analog converter
SU382987A1 (en) DEVICE FOR GENERATION OF QUANTIZATION SIGNALS
STEWART Family of frequency to amplitude converters(Development of family of frequency to amplitude converters for frequency analysis of complex input signal waveforms)[Patent]
JPS6426164A (en) Speed detecting device
JPS5733363A (en) Waveform storage device
JPS54100652A (en) Sampler
JPS5669905A (en) Fm demodulator
JPS5665523A (en) Signal conversion device
SU902249A1 (en) Time interval-to-digital code converter
SU855994A1 (en) Voltage-to-time inverter converter
JPS558144A (en) Analog-digital conversion circuit
SU932587A1 (en) Control signal conversion device
SU1339541A1 (en) Information input device
SU1406533A1 (en) Device for monitoring shape of single electric signals
SU1638798A1 (en) Method for stroboscopic conversion of repetitive electric signals
SU1441470A1 (en) Voltage-to-time converter
JPS5644240A (en) Error rate supervisory circuit
JPS5718123A (en) Analog-to-digital converter
GB1526137A (en) Arrangement for coding with compression the absolute value of an analogue signal