Method and apparatus for transmitting/receiving a program guide for television services
US5515106A · kind A · utility
194Cited by
5References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 26, 1994 |
| Grant date | May 7, 1996 |
| Priority date | — |
| Expiry date | May 26, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/858
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a packet audio/video signal transmission system, program guide information is formed as a master guide and a special guide. The master guide contains programming information for the period of the current several hours. The special guide contains programming information for the next thirty days, for example. The master guide is sent as a service on each carrier or transponder to render it readily available regardless of the carrier frequency to which the receiver is tuned. The special guide is transmitted on only one of the carriers (transponders) to minimize use of system bandwidth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.