Automatic display of closed caption information during audio muting
US5327176A · kind A · utility
82Cited by
6References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1993 |
| Grant date | Jul 5, 1994 |
| Priority date | — |
| Expiry date | Mar 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/47
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for processing audio and video components of a television signal provides for automatic control of closed caption signal display in response to the status of an audio muting feature. The system includes an operating mode in which enabling audio muting also enables the closed caption display and disabling muting disables generation of the closed caption display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.