System and method to reduce channel acquisition and channel switch timings in communication receivers
US8605225B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 29, 2012 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | May 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4345
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A Television (TV) receiver for faster channel switch times between a plurality of broadcasting TV channels with reduced latency in overall demodulation cycle for multiple demodulation standards is provided. The TV receiver includes a tuner that receives the broadcasting TV channels from a broadcasting system, performs a tuning operation, and sets a desired frequency for each of the broadcasting TV channels during a channel scan operation. A demodulator demodulates each of the broadcasting TV channels and acquires one or more acquisition channel parameters of each of the broadcasting TV channels during the channel scan operation. An application processor is coupled to the demodulator via a low throughput interface. The application processor performs a read operation and a write operation of the acquisition channel parameters to memory mapped registers on the demodulator when a channel status switches from a first state to a second state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.