H - Electricity – 04 – L
Patent
H - Electricity
04
L
H04L 1/00 (2006.01) H03M 13/00 (2006.01) H03M 13/23 (2006.01) H03M 13/41 (2006.01) H04L 1/20 (2006.01) G10L 3/00 (1990.01) H03M 13/12 (1990.01)
Patent
CA 2115445
88 ABSTRACT OF THE DISCLOSURE There are provided a device for and a method of counting the number of bit errors in a reception signal for use in digital communication, and further provided a signal identifier device and a method thereof wherein it is judged whether the reception signal is a speech signal or a control signal, and an identification signal, the number of errors, and a decoded signal are outputted. The bit error counter device has a difficulty that any error in a decoded signal exceeding a correction capability makes impossible the evaluation of an accurate bit error rate. To solve this, there is provided a state monitoring part (22) in which information in a decoded process is utilized to output a preset bit error rate when any error occurs in the decoded signal. There is further provided an error detector part (28) in which a preset bit error rate is outputted when any error occurs in the decoded signal. The signal identifier device also has a difficulty that it fails to identify the kind of any input signal when there occurs any error exceeding the detection capability of an error detecting code because the device identifies the kind of any input signal from a result of error detection. To solve this, there is provided a 89 signal identifier part (1206) in which any input signal is identified with the aid of a result of error detection, a result of decoding, and the number of errors.
Fetherstonhaugh & Co.
Oki Electric Industry Co. Ltd.
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