Title:
信号処理回路および信号処理方法、音声信号処理回路および音声信号処理方法、撮像装置および撮像装置の音声信号処理方法、記録装置および記録方法、並びに、再生装置および再生方法
Document Type and Number:
Japanese Patent JP4193814
Kind Code:
B2
Abstract:
A signal processing circuit includes a delaying unit that is configured to carry out delay processing on the basis of periodicity information synchronized with the periodicity of a periodic noise included in an input signal and a filter unit that is configured to receive the input signal and has a notch characteristic at a frequency f. The frequency f satisfies f=N/T, where N represents an integer equal to or greater than one and T represents a delaying time applied by the delaying unit.
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Inventors:
Kazuhiko Ozawa
Application Number:
JP2005155359A
Publication Date:
December 10, 2008
Filing Date:
May 27, 2005
Export Citation:
Assignee:
ソニー株式会社
International Classes:
G11B20/10; H03H21/00; H04N5/225; H04N5/232; H04N5/91
Domestic Patent References:
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Attorney, Agent or Firm:
Masatomo Sugiura