Digital data recording and reproducing device
US4680763A · kind A · utility
12Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1984 |
| Grant date | Jul 14, 1987 |
| Priority date | — |
| Expiry date | Sep 5, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/945
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital data recording and reproducing device has an operation of error detection performed with respect to data with a code word length of M bits for m.sub.1 most significant bits and for m.sub.2 least significant bits. Error concealment is done for each of these error detections. When reproducing data at a different tape speed from that at the time of recording an operation of detecting an error in the less significant m.sub.2 bits is inhibited, and the reference of judgement of an error in the data is altered.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.