Title:
DIGITAL SIGNAL PROCESSING DEVICE AND DIGITAL SIGNAL PROCESSING METHOD
Document Type and Number:
WIPO Patent Application WO/2011/061830
Kind Code:
A1
Abstract:
A signal (DLS) generated by delay being given to a digital signal (FLS) by a delay unit (122) is transmitted to a clipping computing unit (124A). A clipping analysis unit (123A) uses the period of time secured by this delay to specify a soft clipping period only in cases when soft clipping has become necessary because the absolute value of the signal value of the digital signal (FLS) has exceeded a threshold value (L1) which must not be exceeded. Then, the clipping analysis unit (123A) turns on a clipping flag (CLF) and notifies the clipping computing unit (142A) of the soft clipping period for the signal (DLS). Then, the clipping computing unit (124A) performs soft clipping on the signal (DLS) in the period in which the clipping flag (CLF) is "ON". Due to this, soft clipping processing can be rationally performed limited to cases when soft clipping processing is necessary.
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Inventors:
KOBAYASHI SATOMI (JP)
KAGEYAMA TORU (JP)
SHIIZU TAKAYUKI (JP)
HAGIWARA TAKUYA (JP)
KAGEYAMA TORU (JP)
SHIIZU TAKAYUKI (JP)
HAGIWARA TAKUYA (JP)
Application Number:
PCT/JP2009/069635
Publication Date:
May 26, 2011
Filing Date:
November 19, 2009
Export Citation:
Assignee:
PIONEER CORP (JP)
KOBAYASHI SATOMI (JP)
KAGEYAMA TORU (JP)
SHIIZU TAKAYUKI (JP)
HAGIWARA TAKUYA (JP)
KOBAYASHI SATOMI (JP)
KAGEYAMA TORU (JP)
SHIIZU TAKAYUKI (JP)
HAGIWARA TAKUYA (JP)
International Classes:
H03G11/00; H03H17/00; H04R3/00
Foreign References:
| JPH1051318A | 1998-02-20 | |||
| JP2006114998A | 2006-04-27 | |||
| JP2007104407A | 2007-04-19 | |||
| JP2009115511A | 2009-05-28 | |||
| JP2007522706A | 2007-08-09 | |||
| JPH0575367A | 1993-03-26 |
Attorney, Agent or Firm:
SHIBATA, ITSUO (JP)
Shibata Itsuo (JP)
Shibata Itsuo (JP)
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