JPS57176583A - Address system for pcm recorder and reproducer - Google Patents
Address system for pcm recorder and reproducerInfo
- Publication number
- JPS57176583A JPS57176583A JP5862081A JP5862081A JPS57176583A JP S57176583 A JPS57176583 A JP S57176583A JP 5862081 A JP5862081 A JP 5862081A JP 5862081 A JP5862081 A JP 5862081A JP S57176583 A JPS57176583 A JP S57176583A
- Authority
- JP
- Japan
- Prior art keywords
- amplifier
- output
- comparator
- circuit
- rewinding
- 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
Links
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10009—Improvement or modification of read or write signals
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
PURPOSE:To apply almost the same amplitude signal to a comparator in any case, by changing the gain of an amplifier connected to an audio track head at normal reproduction, fast feed and rewinding. CONSTITUTION:A signal reproduced via an audio track head 8 is given to a variable amplifier and an output of an amplifier 30 is applied to a positive comparator 32 and a negative comparator 33 via a smoothing circuit 31. The outputs of the comparators are given to a digital demodulation circuit 21 and a clock reproduction circuit 22 via an OR gate 34. The smoothing circuit 31 detects a positive pulse peak value of the output of the amplifier 30. After converting it to a DC at a DC converter 35, an output via a buffer amplifier 36 controls the amplifier 30, allowing to achieve a uniform output level independently of the fluctuation of tape speed at normal reproduction, fast feed and rewinding.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5862081A JPS57176583A (en) | 1981-04-20 | 1981-04-20 | Address system for pcm recorder and reproducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5862081A JPS57176583A (en) | 1981-04-20 | 1981-04-20 | Address system for pcm recorder and reproducer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57176583A true JPS57176583A (en) | 1982-10-29 |
Family
ID=13089604
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5862081A Pending JPS57176583A (en) | 1981-04-20 | 1981-04-20 | Address system for pcm recorder and reproducer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57176583A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4742141A (en) * | 1985-11-13 | 1988-05-03 | Rhone-Poulenc Specialites Chimiques | Imido polymer from bis imide and alkenyloxyaniline |
EP0542540A2 (en) * | 1991-11-12 | 1993-05-19 | Samsung Electronics Co. Ltd. | Playback equalising circuit for a digital magnetic reproducing apparatus |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118172A (en) * | 1974-08-03 | 1976-02-13 | Kobayashi Denki Seisakusho Kk | TOGUTORITSUKEYOAAMU |
JPS5246806A (en) * | 1975-10-13 | 1977-04-14 | Teac Co | Multi-channel reproducer equipped with device for compensting drop-out |
JPS547911A (en) * | 1977-06-20 | 1979-01-20 | Matsushita Electric Ind Co Ltd | Control signal reproducing system |
JPS55135338A (en) * | 1979-04-09 | 1980-10-22 | Sharp Corp | Pcm system signal recording and reproducing device |
-
1981
- 1981-04-20 JP JP5862081A patent/JPS57176583A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118172A (en) * | 1974-08-03 | 1976-02-13 | Kobayashi Denki Seisakusho Kk | TOGUTORITSUKEYOAAMU |
JPS5246806A (en) * | 1975-10-13 | 1977-04-14 | Teac Co | Multi-channel reproducer equipped with device for compensting drop-out |
JPS547911A (en) * | 1977-06-20 | 1979-01-20 | Matsushita Electric Ind Co Ltd | Control signal reproducing system |
JPS55135338A (en) * | 1979-04-09 | 1980-10-22 | Sharp Corp | Pcm system signal recording and reproducing device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4742141A (en) * | 1985-11-13 | 1988-05-03 | Rhone-Poulenc Specialites Chimiques | Imido polymer from bis imide and alkenyloxyaniline |
EP0542540A2 (en) * | 1991-11-12 | 1993-05-19 | Samsung Electronics Co. Ltd. | Playback equalising circuit for a digital magnetic reproducing apparatus |
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