Method and system for providing audio-only recording of an audio/video signal
US8055116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2005 |
| Grant date | Nov 8, 2011 |
| Priority date | — |
| Expiry date | Nov 21, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B27/034
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for providing audio-only recording is disclosed. According to the method, a combined video stream and an audio stream are received from a source. The audio stream is digitized, if in analog form. The digitized audio stream is compressed using an audio encoding engine. The encoded audio stream is saved in a storage device. The storage device can be local or on a network. In the case of the input A/V signal being a multiplexed and compressed digital signal, the audio segment(s) are separated using a demultiplexer and saved in a storage device. The encoding format of the stored audio data follows that of the original audio data embedded in the multiplexed A/V stream. To store the audio data in a different encoded format, the audio data is first decoded using an appropriate audio decoder and then re-encoded in the desired encoding format. Alternatively, an audio transcoder can be used to store the audio data in the desired encoding format.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.