Invention Grant
- Patent Title: Gain control methods for wireless devices and transmitters
- Patent Title (中): 无线设备和发射器的增益控制方法
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Application No.: US11864519Application Date: 2007-09-28
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Publication No.: US07805116B2Publication Date: 2010-09-28
- Inventor: Bing Xu , Pravin Premakanthan , Clive Tang , Mahibur Rahman
- Applicant: Bing Xu , Pravin Premakanthan , Clive Tang , Mahibur Rahman
- Applicant Address: US TX Austin
- Assignee: Freescale Semiconductor, Inc.
- Current Assignee: Freescale Semiconductor, Inc.
- Current Assignee Address: US TX Austin
- Agency: Ingrassia, Fisher & Lorenz, P.C.
- Main IPC: H01Q11/12
- IPC: H01Q11/12 ; H04B1/04

Abstract:
Embodiments of wireless devices and transmitters are provided, which perform embodiments of automatic gain control methods. The embodiments of wireless devices and transmitters include a ramp generator, a digital gain signal generator, a combiner, and a variable gain amplifier. The ramp generator is adapted to receive a gain control input signal and to generate a gain ramp signal based on the gain control input signal. The digital gain signal generator is adapted to generate and incorporate a gain arc into a digital gain signal. A combiner is adapted to receive and combine a digital input signal with the digital gain signal, to generate a pre-compensated digital signal. The variable gain amplifier is adapted to apply gains indicated in the gain ramp signal to a pre-adjusted analog signal, which is generated based on the pre-compensated digital signal, in order to generate a gain-adjusted analog signal.
Public/Granted literature
- US20090088098A1 GAIN CONTROL METHODS FOR WIRELESS DEVICES AND TRANSMITTERS Public/Granted day:2009-04-02
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