Invention Grant
US06876874B2 Process for reducing the electrical consumption of a transmitter/receiver of digital information, in particular a cellular mobile telephone, and corresponding transmitter/receiver
有权
用于减少数字信息的发射机/接收机，特别是蜂窝移动电话和对应的发射机/接收机的电消耗的过程
- Patent Title: Process for reducing the electrical consumption of a transmitter/receiver of digital information, in particular a cellular mobile telephone, and corresponding transmitter/receiver
- Patent Title (中): 用于减少数字信息的发射机/接收机，特别是蜂窝移动电话和对应的发射机/接收机的电消耗的过程
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Application No.: US09886966Application Date: 2001-06-21
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Publication No.: US06876874B2Publication Date: 2005-04-05
- Inventor: Thierry Arnaud , Friedbert Berens
- Applicant: Thierry Arnaud , Friedbert Berens
- Applicant Address: NL Amsterdam
- Assignee: STMicroelectronics N.V.
- Current Assignee: STMicroelectronics N.V.
- Current Assignee Address: NL Amsterdam
- Agency: Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- Agent Lisa K. Jorgenson
- Priority: EP00113102 20000628
- Main IPC: H03L7/183
- IPC: H03L7/183 ; H03J7/06 ; H04B1/16 ; H04B1/40 ; H04B7/26 ; H04L7/033 ; H04B1/38
Abstract:
The electrical consumption of a cellular mobile telephone is reduced by using fractional-division phase-locked loops receiving a frequency reference from a fairly inaccurate quartz oscillator. Electrical consumption is also reduced by switching the output of the oscillator onto the input of the processing stage when the transmission/reception stage is inactive. The fractional-division phase-locked loops can then be deactivated.
Public/Granted literature
Information query
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