Apparatus and method of retrieving a message from a digital audio tape
US5339203A · kind A · utility
39Cited by
7References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 21, 1993 |
| Grant date | Aug 16, 1994 |
| Priority date | — |
| Expiry date | Dec 21, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/913
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A scheme has been devised for retrieving audio from a digital audio tape (DAT) that has been used in a device such as a digital audio logger wherein audio is recorded on a intermittent basis. An audio bit map is created on the DAT that represents a record of activity with a "1" bit representing audio and a "0" bit representing absence of audio. The channels of the logger can be searched for a next message or previous message. A predetermined sequence of "1's" and "0's" are used in the search for identifying a message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.