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Title:
DIGITAL SIGNAL PROCESSING APPARATUS AND PROCESSING METHOD, AND DIGITAL SIGNAL REPRODUCTION&sol RECEPTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2003/001510
Kind Code:
A1
Abstract:
A digital signal processing apparatus receiving a 1−bit audio signal which has been transmitted via a predetermined transmission path and &Dgr Σ−modulated and switching it with a mute pattern. This apparatus includes an IEEE1394 I&sol F (31). The IEEE1394 I&sol F receives an isochronous packet transmitted via a transmission path (20) of the IEEE1394 format and acquires music data from the packet and supplies it to a DRAM (32). The IEEE1394 I&sol F monitors a data amount stored in the DRAM, reads out a 1−bit digital signal or generates a mute pattern such as a 9−6 pattern, and switches between the 1−bit digital signal read from the DRAM and the mute pattern with fade processing. A D&sol A converter (35) converts the 1−bit digital signal output from the IEEE1394 I&sol F into an analog signal.

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Inventors:
NAGASAWA HIROSHI (JP)
SHIBA KENJI (JP)
AOKI TETSUYA (JP)
Application Number:
PCT/JP2002/006120
Publication Date:
January 03, 2003
Filing Date:
June 19, 2002
Export Citation:
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Assignee:
SONY CORP (JP)
NAGASAWA HIROSHI (JP)
SHIBA KENJI (JP)
AOKI TETSUYA (JP)
International Classes:
G10L19/00; G10L19/02; G11B20/10; H04H1/00; H04H5/00; H04H20/88; (IPC1-7): G10L19/00; G11B20/10
Domestic Patent References:
WO1997029549A11997-08-14
Foreign References:
EP1087557A22001-03-28
JPH0973299A1997-03-18
JPH06124098A1994-05-06
JPH06209296A1994-07-26
JPH07191695A1995-07-28
EP0702354A11996-03-20
JPH10222806A1998-08-21
JP2000261323A2000-09-22
JP2001127639A2001-05-11
JP2001134300A2001-05-18
Other References:
None
See also references of EP 1403853A4
Attorney, Agent or Firm:
Koike, Akira (6-4 Toranomon 2-chome Minato-ku, Tokyo, JP)
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