JPS554726A - Pcm signal recording method - Google Patents
Pcm signal recording methodInfo
- Publication number
- JPS554726A JPS554726A JP7617378A JP7617378A JPS554726A JP S554726 A JPS554726 A JP S554726A JP 7617378 A JP7617378 A JP 7617378A JP 7617378 A JP7617378 A JP 7617378A JP S554726 A JPS554726 A JP S554726A
- Authority
- JP
- Japan
- Prior art keywords
- block
- divided
- pcm
- parity
- recording
- 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
Landscapes
- Detection And Correction Of Errors (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Error Detection And Correction (AREA)
Abstract
PURPOSE: To use a fixed head to perform an effecitve recording by forming word date blocks, which are obtained by dividing PCM signals of the same channel, and a parity block for every divided block and adding a CRC code.
CONSTITUTION: PCM signals of the same channel becomes data blocks, which are divided by two, etc., through parallel circuit 2 and time base compression circuits 3 and 4, and a parity block is formed in parity forming circuit 5 by the simple addition and the mode 2 addition of every divided signals, and the parity block following the word block is formed through delay circuit 6, parallel circuit 7, etc., A CRC code generated by CRC generation circuits 8 and 9 is added to these blocks, and data is recorded by multi-fixed heads 17 and 18 of two channels, etc. As a result, PCM signals are distributed and recorded according to the recording density of every track, and added redundant bits for errors such as drop-out restrained to a minimum, so that fixed heads can be used to perform an effective PCM recording.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7617378A JPS554726A (en) | 1978-06-23 | 1978-06-23 | Pcm signal recording method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7617378A JPS554726A (en) | 1978-06-23 | 1978-06-23 | Pcm signal recording method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS554726A true JPS554726A (en) | 1980-01-14 |
JPH0239036B2 JPH0239036B2 (en) | 1990-09-03 |
Family
ID=13597691
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7617378A Granted JPS554726A (en) | 1978-06-23 | 1978-06-23 | Pcm signal recording method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS554726A (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0420539U (en) * | 1990-06-12 | 1992-02-20 | ||
JPH0564342U (en) * | 1992-02-10 | 1993-08-27 | ニチハ株式会社 | Joint structure of outer wall |
-
1978
- 1978-06-23 JP JP7617378A patent/JPS554726A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPH0239036B2 (en) | 1990-09-03 |
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