Title:
【発明の名称】多重モード音声コーダのためのエラー保護
Document Type and Number:
Japanese Patent JP3396480
Kind Code:
B2
Abstract:
A method for protecting information bits wherein input data bits, at least some of which are to be protected, are sorted based upon information determined from a subset of the input data bits. An error control coding technique is applied to at least some of the sorted bits. In the preferred embodiment, an input data stream of voice coder bits is separated into arrays of bits. A first array (302) comprises voice coder bits needing error protection, with the bits arranged in order of importance determined by voicing mode. The second array (303) comprises bits that will not be error protected. The bits from the first array are provided to the input of an encoder (304), then the encoded bits are combined (305) with the bits from the second array (303) to form a bit stream.
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Inventors:
Gerson, Ira Ay
Eric H. Winter
Jasiuk, Mark A
Eric H. Winter
Jasiuk, Mark A
Application Number:
JP50517493A
Publication Date:
April 14, 2003
Filing Date:
August 03, 1992
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
G10L19/00; H03M13/35; G10L19/04; (IPC1-7): G10L19/04; G10L19/00
Domestic Patent References:
| JP3175830A | ||||
| JP6359127A | ||||
| JP1177225A | ||||
| JP3502152A |
Attorney, Agent or Firm:
Shinsuke Onuki (2 outside)