JPS56120300A - 4 channel pcm recording playback system - Google Patents
4 channel pcm recording playback systemInfo
- Publication number
- JPS56120300A JPS56120300A JP2274380A JP2274380A JPS56120300A JP S56120300 A JPS56120300 A JP S56120300A JP 2274380 A JP2274380 A JP 2274380A JP 2274380 A JP2274380 A JP 2274380A JP S56120300 A JPS56120300 A JP S56120300A
- Authority
- JP
- Japan
- Prior art keywords
- bit
- playback system
- channels
- recording playback
- channel pcm
- 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
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
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1806—Pulse code modulation systems for audio signals
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Stereophonic System (AREA)
- Time-Division Multiplex Systems (AREA)
Abstract
PURPOSE:To make the PCM recorder to 4-channels, by compressing two signals consisting of 14-bit into suitable number of bits, and suitably inserting the digital data of the 3rd and 4th channels in remaining bits. CONSTITUTION:An, Bn being the data of 2 channel of the main are constituted with 9-bit compressed from 14-bit and Xa, Xb are the compressed information 1 bit. As to the sub-channels C, D, the data in 14-bit taking the sampling frequency as 1/3 of AnBn, is split into as 4-bit, 5-bit, and 5-bit, and they are respectively recorded in Cn(1), Cn(2), Cn(3) and Dn(1), Dn(2), and Dn(3).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2274380A JPS56120300A (en) | 1980-02-27 | 1980-02-27 | 4 channel pcm recording playback system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2274380A JPS56120300A (en) | 1980-02-27 | 1980-02-27 | 4 channel pcm recording playback system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56120300A true JPS56120300A (en) | 1981-09-21 |
JPH0136319B2 JPH0136319B2 (en) | 1989-07-31 |
Family
ID=12091180
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2274380A Granted JPS56120300A (en) | 1980-02-27 | 1980-02-27 | 4 channel pcm recording playback system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56120300A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60223080A (en) * | 1984-04-18 | 1985-11-07 | Matsushita Electric Ind Co Ltd | Recording method of acoustic information |
JPS60224153A (en) * | 1984-04-20 | 1985-11-08 | Sony Corp | Multi-channel digital audio recorder |
JPS6226673A (en) * | 1985-07-26 | 1987-02-04 | Hitachi Ltd | Picture signal recording method |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5525843A (en) * | 1978-08-11 | 1980-02-23 | Sony Corp | Recorder for multi-channel signal |
-
1980
- 1980-02-27 JP JP2274380A patent/JPS56120300A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5525843A (en) * | 1978-08-11 | 1980-02-23 | Sony Corp | Recorder for multi-channel signal |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60223080A (en) * | 1984-04-18 | 1985-11-07 | Matsushita Electric Ind Co Ltd | Recording method of acoustic information |
JPS60224153A (en) * | 1984-04-20 | 1985-11-08 | Sony Corp | Multi-channel digital audio recorder |
JPS6226673A (en) * | 1985-07-26 | 1987-02-04 | Hitachi Ltd | Picture signal recording method |
Also Published As
Publication number | Publication date |
---|---|
JPH0136319B2 (en) | 1989-07-31 |
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