JPS5514502A - Recording and reproducing unit of pcm system - Google Patents
Recording and reproducing unit of pcm systemInfo
- Publication number
- JPS5514502A JPS5514502A JP8586178A JP8586178A JPS5514502A JP S5514502 A JPS5514502 A JP S5514502A JP 8586178 A JP8586178 A JP 8586178A JP 8586178 A JP8586178 A JP 8586178A JP S5514502 A JPS5514502 A JP S5514502A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- data
- pcm
- sampling period
- fed
- 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
Abstract
PURPOSE: To prevent the production of abnormal reproducing sound, by inhibiting the data latch when each bit of the PCM reproducing data for one sample period's share is all at high or low level.
CONSTITUTION: The parallel PCM signal every one sampling period in which the synchronizing pulse is inserted and which is recorded in the VTR9, is reproduced in the VTR9 and is separated into the PCM data and the synchronizing pulse at the signal separation circuit 11. The PCM data in this one sampling period is fed to the data failure detection circuit 22 in which the output is inverted when each bit of the PCM data in one sampling period is all at high or low level and the error detection circuit 15' discriminating CRC, and the synchronizing pulse is fed to the synchronizing failure detection circuit 23. The failure detection signals in the circuits 22 and 15' open the AND circuit 26 via the AND circuit 25 which is opened when the result of detection of the circuit 23 is normal, and the inhibit signal is fed to the latch circuit 24 to inhibit the latch to the circuit 24 at the PCM data failure in one sampling period in parallel conversion. Accordingly, no abnormal sound is produced in the reproduced sound in D/A conversion.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8586178A JPS5514502A (en) | 1978-07-14 | 1978-07-14 | Recording and reproducing unit of pcm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8586178A JPS5514502A (en) | 1978-07-14 | 1978-07-14 | Recording and reproducing unit of pcm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5514502A true JPS5514502A (en) | 1980-02-01 |
Family
ID=13870655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8586178A Pending JPS5514502A (en) | 1978-07-14 | 1978-07-14 | Recording and reproducing unit of pcm system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5514502A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179037A (en) * | 1982-04-14 | 1983-10-20 | Nec Corp | Method and device for adaptive differential decoding |
| JPS5964941A (en) * | 1982-10-05 | 1984-04-13 | Nec Corp | Digitized sound receiver |
| JPS5986347A (en) * | 1982-11-09 | 1984-05-18 | Victor Co Of Japan Ltd | Data fetching system |
| JPS5986346A (en) * | 1982-11-09 | 1984-05-18 | Victor Co Of Japan Ltd | Data fetching system |
| JPS61262333A (en) * | 1985-03-22 | 1986-11-20 | トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Synchronization system for digital information signal |
| JPH02106862A (en) * | 1988-10-17 | 1990-04-18 | Toshiba Corp | Anode for x-ray tube and manufacture thereof |
-
1978
- 1978-07-14 JP JP8586178A patent/JPS5514502A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58179037A (en) * | 1982-04-14 | 1983-10-20 | Nec Corp | Method and device for adaptive differential decoding |
| JPH0356022B2 (en) * | 1982-04-14 | 1991-08-27 | ||
| JPS5964941A (en) * | 1982-10-05 | 1984-04-13 | Nec Corp | Digitized sound receiver |
| JPS5986347A (en) * | 1982-11-09 | 1984-05-18 | Victor Co Of Japan Ltd | Data fetching system |
| JPS5986346A (en) * | 1982-11-09 | 1984-05-18 | Victor Co Of Japan Ltd | Data fetching system |
| JPS61262333A (en) * | 1985-03-22 | 1986-11-20 | トムソン コンシューマー エレクトロニクス セイルズ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Synchronization system for digital information signal |
| JPH02106862A (en) * | 1988-10-17 | 1990-04-18 | Toshiba Corp | Anode for x-ray tube and manufacture thereof |
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