Title:
SIGNAL PROCESSING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2007/122883
Kind Code:
A1
Abstract:
A signal processing apparatus wherein a changed signal, such as a degraded signal or
the like, can be restored with realizability achieved without increasing the
apparatus scale. The signal processing apparatus (1) has a processing part (4)
that restores a source signal data, which is, for example, a signal before being
changed, from an original signal data in which the change, such as degradation, has
occurred (and which will be referred to as “changed data” hereinafter).
There are provided a changed data area in which the changed data is stored and
a restored data area in which the signal data as restored is stored each time the
restoring process is done. The processing part performs a repetitive processing
for obtaining the source signal. When the energy value of the residual data is
less than zero during the repetitive processing, some of the energy having already
moved to the restored data area is placed, by use of change factor information, back
to the changed data area such that the energy value of the residual data becomes equal
to or greater than zero. In this way, the repetitive processing is performed such
that the data formed in the restored data area after completion of the repetitive processing
will be used as the source signal data.
Inventors:
TAKAHASHI FUMINORI (JP)
Application Number:
PCT/JP2007/054547
Publication Date:
November 01, 2007
Filing Date:
March 08, 2007
Export Citation:
Assignee:
NITTOH KOGAKU KK (JP)
TAKAHASHI FUMINORI (JP)
TAKAHASHI FUMINORI (JP)
International Classes:
H04N5/232; G03B5/00; G06T5/20; H04N101/00
Foreign References:
| JP2002300459A | 2002-10-11 | |||
| JPH1124122A | 1999-01-29 | |||
| JPH06317824A | 1994-11-15 |
Attorney, Agent or Firm:
IAT WORLD PATENT LAW FIRM (Shinjuku Square Tower22-1, Nishi-shinjuku,6-chome, Shinjuku-ku, Tokyo 27, JP)
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