Power control device and method for satellite DMB receiver
US7673212B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A power control device and method capable of reducing the power consumption of a DMB receiver according to whether or not CDM channels are received is provided. The power control device includes N CDM/FEC parts for demodulating a received broadcast signal into up to N CDM channel signals and error-correcting the demodulated channel signals and thereby generating a pilot payload signal and a transport stream, a plurality of clock switches for respectively turning on/off clock signals supplied to the N CDM/FEC parts, and a clock switch controller for controlling turning on/off of the clock switches, and controls supply of clock signals to the CDM/FEC parts according to CDM channel reception states, thereby making it possible to reduce the power consumption by the CDM/FEC parts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.