Title:
APPARATUS FOR PROCESSING PCM SIGNAL
Document Type and Number:
WIPO Patent Application WO/1984/002999
Kind Code:
A1
Abstract:
A PCM signal processing apparatus provides correction processing so that no pulse noise (abnormal sound) is generated by the reproduction of erroneous data (e.g., unerased data) that has not been recognized as an error from an error-detecting code added to the data. The format of the transmission data processed by the apparatus is such that one block of data is constituted by a plurality of PCM data items, and one segment of data is constituted by a plurality of blocks, each block being provided with a data error detecting code (CRC) and a segment address (S-ADR) to which the block belongs. A detection circuit (15) is provided which detects whether or not the segment addresses of reproduced data within each block within one segment are the same. When the detection circuit (15) detects a non-coincidence, an interpolation circuit (13) is actuated in reponse to the detection output and effects some form of correction processing, such as mean value interpolation, higher-order interpolation, or the holding of the previous value.
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Inventors:
FUKAMI TADASHI (JP)
ODAKA KENTARO (JP)
ODAKA KENTARO (JP)
Application Number:
PCT/JP1984/000025
Publication Date:
August 02, 1984
Filing Date:
January 31, 1984
Export Citation:
Assignee:
SONY CORP (JP)
International Classes:
G11B20/18; H04L1/00; G11B27/036; G11B27/30; H04B14/04; G11B27/032; (IPC1-7): G11B5/09
Foreign References:
| JPS4940534A | 1974-04-16 | |||
| JPS5375910A | 1978-07-05 |
Other References:
See also references of EP 0163736A4
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