Sound device for expansion station
US6427136B2 · kind B2 · utility
1Cited by
15References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1998 |
| Grant date | Jul 30, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sound device includes a silent state detecting unit for detecting a silent state in a sound signal supplied by a personal computer; and a sound production preventing unit for preventing a sound from being produced from the sound signal supplied by the personal computer when the silent state is detected by the silent state detecting unit. By halting the production of a sound from the sound signal supplied from the personal computer when the silent state is detected, production of noise in a silent state is prevented so that the quality of sound in the expansion station is improved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.