Title:
SIGNAL PROCESSOR, SIGNAL PROCESSING METHOD AND COMPUTER PROGRAM
Document Type and Number:
Japanese Patent JP2015099964
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a signal processor capable of reducing noises generated at a switching point when switching two sigma-delta modulation signals.SOLUTION: The signal processor includes: a signal coincidence detection section that detects samples having coincident values based on appearance times of bits in plural samples in a predetermined period of time between a first modulated signal obtained by subjecting to a sigma-delta modulation processing to delay the same and a second modulated signal obtained by performing the sigma-delta modulation processing again on the input signals; a signal switching section that outputs the first modulated signal and the second modulated signal while switching therebetween; and a switching control section that controls the signal switching section to switch the signals using the samples having coincident values based on the appearance times obtained by the signal coincidence detection section.
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Inventors:
MATSUMURA YUKI
SUZUKI SHIRO
SUZUKI SHIRO
Application Number:
JP2013237847A
Publication Date:
May 28, 2015
Filing Date:
November 18, 2013
Export Citation:
Assignee:
SONY CORP
International Classes:
H03M3/02
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto