JPS56120300A - 4 channel pcm recording playback system - Google Patents

4 channel pcm recording playback system

Info

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
Application number
JP2274380A
Other languages
Japanese (ja)
Other versions
JPH0136319B2 (en
Inventor
Shigeru Yamazaki
Takashi Takeuchi
Hiromichi Tanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2274380A priority Critical patent/JPS56120300A/en
Publication of JPS56120300A publication Critical patent/JPS56120300A/en
Publication of JPH0136319B2 publication Critical patent/JPH0136319B2/ja
Granted legal-status Critical Current

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).
JP2274380A 1980-02-27 1980-02-27 4 channel pcm recording playback system Granted JPS56120300A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5525843A (en) * 1978-08-11 1980-02-23 Sony Corp Recorder for multi-channel signal

Patent Citations (1)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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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