Invention Grant
US08194805B2 Digital demodulating apparatus, digital receiver, controlling method of the apparatus, computer program product, and recording medium recording thereon the product
有权
数字解调装置，数字接收机，装置的控制方法，计算机程序产品和在其上记录产品的记录介质
- Patent Title: Digital demodulating apparatus, digital receiver, controlling method of the apparatus, computer program product, and recording medium recording thereon the product
- Patent Title (中): 数字解调装置，数字接收机，装置的控制方法，计算机程序产品和在其上记录产品的记录介质
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Application No.: US12118854Application Date: 2008-05-12
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Publication No.: US08194805B2Publication Date: 2012-06-05
- Inventor: Nobuyoshi Kaiki
- Applicant: Nobuyoshi Kaiki
- Applicant Address: JP Osaka
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Osaka
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2007-253878 20070928
- Main IPC: H04L27/08
- IPC: H04L27/08
Abstract:
A digital demodulating apparatus includes an intensity changing unit that changes the intensity of a received signal; a channel selecting unit that applies channel selection processing to the signal whose intensity has been changed by the intensity changing unit; a demodulating unit that applies demodulation processing to the signal to which the channel selecting unit has applied channel selection processing; a noise evaluating unit that evaluates an influence of noise components on a desired component in the signal to be input to the demodulating unit; and a gain changing unit that changes, on the basis of a result of the evaluation by the noise evaluating unit, the gain of the change in the intensity of the received signal by the intensity changing unit so that the influence of the noise components is decreased in the signal to be input to the demodulating unit.
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