Invention Grant
- Patent Title: Broadcast receiving apparatus and method of detecting noise components performed by broadcast receiving apparatus
- Patent Title (中): 广播接收装置以及由广播接收装置执行的噪声分量的检测方法
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Application No.: US13030791Application Date: 2011-02-18
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Publication No.: US08498597B2Publication Date: 2013-07-30
- Inventor: Kohta Miyagi , Kazuo Takayama , Keita Taniguchi
- Applicant: Kohta Miyagi , Kazuo Takayama , Keita Taniguchi
- Applicant Address: JP Kobe-shi
- Assignee: Fujitsu Ten Limited
- Current Assignee: Fujitsu Ten Limited
- Current Assignee Address: JP Kobe-shi
- Agency: Oliff & Berridge, PLC
- Priority: JP2010-037677 20100223; JP2010-137735 20100616
- Main IPC: H04B17/00
- IPC: H04B17/00

Abstract:
To provide a broadcast receiving apparatus including an AM detector, an AM noise detector, an FM detector, an FM noise-level detector, and a threshold control unit. The AM detector performs AM detection on a broadcast signal in airwaves received by a receiving antenna that receives incoming airwaves to acquire an AM detection signal. The AM noise detector detects a signal portion, in which the AM detection signal exceeds an AM noise threshold, as an AM noise component. The FM detector performs FM detection on the broadcast signal to acquire an FM detection signal. The FM noise-level detector detects an FM noise level of the FM detection signal. When the FM noise-level detector detects the FM noise level of the FM detection signal, the threshold control unit changes setting of the AM noise threshold in the AM noise detector based on the FM noise level of the FM detection signal.
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