JPS5535581A - Waveform shaping circuit - Google Patents
Waveform shaping circuitInfo
- 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
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
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)
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)
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 |
-
1978
- 1978-09-06 JP JP10948078A patent/JPS5535581A/en active Granted
Patent Citations (2)
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)
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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