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Patent Searching and Data


Title:
無線電話用復号器
Document Type and Number:
Japanese Patent JP4125386
Kind Code:
B2
Abstract:
The invention provides an improved method and apparatus for identifying a bad GSM speech frame. Both the estimated signal-to-noise ratio (ESNR) of the received signal and the pseudo bit error rate (PBER) of a recoded speech signal are used to determine whether or not a speech frame is bad.

Inventors:
Ilkka Heikki Leh
Harry jokinen
Yucca Lanta
Application Number:
JP24544494A
Publication Date:
July 30, 2008
Filing Date:
October 11, 1994
Export Citation:
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Assignee:
NOKIA CORPORATION
International Classes:
H04B15/00; H04B7/26; H04L1/20
Domestic Patent References:
JP5502780A
JP3117121A
Attorney, Agent or Firm:
Atsushi Aoki
Jun Tsuruta
Tetsuro Shimada
Shimichi Akihisa
Kurachi Yasuyuki