Conference circuit for pulse coded modulated telephony

Details Conference circuit for pulse coded modulated telephony Conference circuit for pulse coded modulated telephony

H - Electricity

04

M

344/14, 344/25

H04M 3/56 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 1081831

TITLE IMPROVED CONFERENCE CIRCUIT FOR PULSE CODED MODULATED TELEPHONY ABSTRACT OF THE DISCLOSURE A method of providing a multi-port conference circuit for use in a telephone switching system employing pulse coded modulated signals for transmission and supervision. Samplings of coded information are employed as a source of conference data and comparison with the digital information contained therein is employed to choose the speaker in a conference group. Included circuitry provides compensation for degradation caused by speech clipping and noise.

285919

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