Digital broadcast receiving apparatus
US7161631B2 · kind B2 · utility
44Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Apr 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4884
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
When a viewer does not make a request for displaying a menu screen, a CPU inserts a closed caption signal into LINE 21 of a video signal and outputs the video signal to an analog television receiver. When the viewer changes the setting of the apparatus, the CPU performs so as to output a menu image, to generate a closed caption erase signal, and to insert the closed caption erase signal into LINE 21 of the video signal. Thereafter, output of the menu image is continued until the menu erase signal is received or reception of digital broadcast signal is terminated and in the meanwhile, the closed caption signal is not output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.