JPS5535581A - Waveform shaping circuit - Google Patents

Waveform shaping circuit

Info

Publication number
JPS5535581A
JPS5535581A JP10948078A JP10948078A JPS5535581A JP S5535581 A JPS5535581 A JP S5535581A JP 10948078 A JP10948078 A JP 10948078A JP 10948078 A JP10948078 A JP 10948078A JP S5535581 A JPS5535581 A JP S5535581A
Authority
JP
Japan
Prior art keywords
signal
output
clamping
clamp
featuring
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.)
Granted
Application number
JP10948078A
Other languages
Japanese (ja)
Other versions
JPS6249776B2 (en
Inventor
Hiroshi Ogawa
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP10948078A priority Critical patent/JPS5535581A/en
Publication of JPS5535581A publication Critical patent/JPS5535581A/en
Publication of JPS6249776B2 publication Critical patent/JPS6249776B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To delvier the signal featuring an accurate coinciednce with the original PCM signal by giving a comparison between the referance voltage signal delivered through the amplifier possessing the positive and negative gains after clamping and calculation and the one-clamp output signal.
CONSTITUTION: The signal recorded on PCM audio disk 3 undergoes optical detection 4 and is then converted into the signal of the square cosine waveform after passing through square cosine filter 5. Then the reproduced waveform sent from filter 5 is applied to amplifiers 6a and 6b possessing the gains of +A and -A each and then changed to the DC voltage via LPF 8a and 8b after clamping 7a and 7b to be calculated through arithmetic circuit 9. Thus the fixed reference voltage is obtained. Then this output is compared with the output of clamp 7a to obtain the signal featuring an accurate coincidence with the original PCM signal.
COPYRIGHT: (C)1980,JPO&Japio
JP10948078A 1978-09-06 1978-09-06 Waveform shaping circuit Granted JPS5535581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10948078A JPS5535581A (en) 1978-09-06 1978-09-06 Waveform shaping circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10948078A JPS5535581A (en) 1978-09-06 1978-09-06 Waveform shaping circuit

Publications (2)

Publication Number Publication Date
JPS5535581A true JPS5535581A (en) 1980-03-12
JPS6249776B2 JPS6249776B2 (en) 1987-10-21

Family

ID=14511304

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10948078A Granted JPS5535581A (en) 1978-09-06 1978-09-06 Waveform shaping circuit

Country Status (1)

Country Link
JP (1) JPS5535581A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130262A (en) * 1979-03-30 1980-10-08 Nec Corp Bipolarity discrimination circuit
JPS56152442U (en) * 1980-04-15 1981-11-14
JPS57105703A (en) * 1980-11-04 1982-07-01 Minnesota Mining & Mfg Point focal point condenser
JPS6145470A (en) * 1984-08-09 1986-03-05 Olympus Optical Co Ltd Reproducing device of slice level compensating signal
JPS6212957A (en) * 1985-07-09 1987-01-21 Matsushita Electric Ind Co Ltd Digital signal detector

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS509569A (en) * 1973-05-30 1975-01-31
JPS5384615A (en) * 1976-12-29 1978-07-26 Fujitsu Ltd Equalization clamp system for waveform

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS509569A (en) * 1973-05-30 1975-01-31
JPS5384615A (en) * 1976-12-29 1978-07-26 Fujitsu Ltd Equalization clamp system for waveform

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55130262A (en) * 1979-03-30 1980-10-08 Nec Corp Bipolarity discrimination circuit
JPS6333750B2 (en) * 1979-03-30 1988-07-06 Nippon Electric Co
JPS56152442U (en) * 1980-04-15 1981-11-14
JPS57105703A (en) * 1980-11-04 1982-07-01 Minnesota Mining & Mfg Point focal point condenser
JPH0547801B2 (en) * 1980-11-04 1993-07-19 Minnesota Mining & Mfg
JPS6145470A (en) * 1984-08-09 1986-03-05 Olympus Optical Co Ltd Reproducing device of slice level compensating signal
JPS6212957A (en) * 1985-07-09 1987-01-21 Matsushita Electric Ind Co Ltd Digital signal detector

Also Published As

Publication number Publication date
JPS6249776B2 (en) 1987-10-21

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