Invention Grant
US08428202B2 Receiver with analog and digital gain control, and respective method
有权
具有模拟和数字增益控制的接收机,以及各自的方法
- Patent Title: Receiver with analog and digital gain control, and respective method
- Patent Title (中): 具有模拟和数字增益控制的接收机,以及各自的方法
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Application No.: US12818326Application Date: 2010-06-18
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Publication No.: US08428202B2Publication Date: 2013-04-23
- Inventor: Bogdan Braicu , Heinrich Schemmann
- Applicant: Bogdan Braicu , Heinrich Schemmann
- Applicant Address: FR Issy les Moulineaux
- Assignee: Thomson Licensing
- Current Assignee: Thomson Licensing
- Current Assignee Address: FR Issy les Moulineaux
- Agency: Tutunjian & Bitetto, P.C.
- Priority: EP09305574 20090619
- Main IPC: H04L27/08
- IPC: H04L27/08

Abstract:
The receiver comprises a first amplifier, a mixer for downconverting a wanted communications channel, a second amplifier, a demodulator and a digital controller providing a digital gain setting for the second amplifier by means a digital gain control after a selection of the wanted communications channel, and providing an analog gain setting for the first amplifier by means of an analog gain control during demodulation of the wanted communications channel. The digital gain setting is in particular freezed during demodulation of the wanted communications channel and the digital controller provides a re-calibration of the digital gain setting only, when the analog gain control is out of its control range. Applications are for example for direct conversion digital satellite receivers for reception of DVB-S, DVB-S2 or ABS-S television channels.
Public/Granted literature
- US20100322360A1 RECEIVER WITH ANALOG AND DIGITAL GAIN CONTROL, AND RESPECTIVE METHOD Public/Granted day:2010-12-23
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