Display control for cellular phone
US8204553B2 · kind B2 · utility
45Cited by
5References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2007 |
| Grant date | Jun 19, 2012 |
| Priority date | — |
| Expiry date | Jan 15, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A control system for a mobile device comprises an audio input that generates an audio input signal. An audio amplifier amplifies the audio input signal using a gain. An adaptive gain control (AGC) module receives the audio input signal and adjusts the gain of the audio input signal. A comparing module generates a first signal when the gain is less than a threshold. A timing module determines a duration of the first signal. A selecting module communicates with the timing module and selects one of an active mode and an inactive mode of the mobile device when the duration is greater than a first period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.