JPS6455787A - Part rewriting method for continuous digital information - Google Patents
Part rewriting method for continuous digital informationInfo
- Publication number
- JPS6455787A JPS6455787A JP21127687A JP21127687A JPS6455787A JP S6455787 A JPS6455787 A JP S6455787A JP 21127687 A JP21127687 A JP 21127687A JP 21127687 A JP21127687 A JP 21127687A JP S6455787 A JPS6455787 A JP S6455787A
- Authority
- JP
- Japan
- Prior art keywords
- time
- information
- recording
- data
- change
- 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
- Signal Processing For Digital Recording And Reproducing (AREA)
Abstract
PURPOSE:To change and correct an arbitrary part of information by re-encoding the reproducing information earlier than at least the interleaved code propagation length equivalent time from the time point to start the change and starting the re-recording to an original position. CONSTITUTION:A reproducing data string 61 reproduced by a preceding reproducing head precedes for an (l) data frame equivalent time more than a recording data string 68 supplied to a recording head, and the time difference is selected larger than the sum of a decoding time t1 of a decoder 62 and an encoding time t2 of an encoder 67. Consequently, for example, the data reproduced from a j-th data frame are decoded by the decoder 62, re-encoded by the encoder 67 and can be re-recorded to an original j-th data frame. After the interleaved code propagation length equivalent time or above passes, a switch 65 is fallen to an external side 65b, and thus, change and correction information 64 inputted from an external part can be replaced to previous information and the continuity of the recording data can be kept. Thus, an arbitrary part of the continuous digital information can be changed and corrected.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62211276A JP2697827B2 (en) | 1987-08-27 | 1987-08-27 | Partial rewriting method of continuous digital information |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62211276A JP2697827B2 (en) | 1987-08-27 | 1987-08-27 | Partial rewriting method of continuous digital information |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6455787A true JPS6455787A (en) | 1989-03-02 |
JP2697827B2 JP2697827B2 (en) | 1998-01-14 |
Family
ID=16603245
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62211276A Expired - Lifetime JP2697827B2 (en) | 1987-08-27 | 1987-08-27 | Partial rewriting method of continuous digital information |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2697827B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5434991A (en) * | 1990-03-20 | 1995-07-18 | Sharp Kabushiki Kaisha | Method and apparatus for recording and reproducing information in black on a rewritable recording medium |
JP2001142498A (en) * | 1999-09-01 | 2001-05-25 | Sony Corp | Method and device for digital signal processing, method and device for digital signal recording, and recording medium |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744272A (en) * | 1980-08-28 | 1982-03-12 | Sony Corp | Electronic editing method |
-
1987
- 1987-08-27 JP JP62211276A patent/JP2697827B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5744272A (en) * | 1980-08-28 | 1982-03-12 | Sony Corp | Electronic editing method |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5434991A (en) * | 1990-03-20 | 1995-07-18 | Sharp Kabushiki Kaisha | Method and apparatus for recording and reproducing information in black on a rewritable recording medium |
JP2001142498A (en) * | 1999-09-01 | 2001-05-25 | Sony Corp | Method and device for digital signal processing, method and device for digital signal recording, and recording medium |
Also Published As
Publication number | Publication date |
---|---|
JP2697827B2 (en) | 1998-01-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term |