Apparatus for transmitting data in isochronous and asynchronous manners, an apparatus for receiving the same, and a system and method for such transmitting and receiving of such data
US6233393A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1997 |
| Grant date | May 15, 2001 |
| Priority date | — |
| Expiry date | Sep 18, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/85
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a system having a digital video disc (DVD) player and a number of presentation devices (such as a television receiver, video cassette recorder/reproducer, and so forth), the DVD player may transmit presentation data and a portion of control or navigation data obtained from a digital video disc (DVD) to a desired one of the presentation devices in an isochronous communication manner so as to enable the respective presentation device to process or decode the presentation data in accordance with the transmitted portion of the navigation data without substantial time delays (or in real time). The remaining portion of the navigation data (which is not utilized in such real time processing) may be transmitted from the DVD player to the respective presentation device in an asynchronous communication manner. Such arrangement of isochronous and asynchronous communication enables processing to be performed by the respective presentation device so as to reduce the amount of processing which may otherwise have to be performed by the DVD player.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.