H - Electricity – 04 – M
Patent
H - Electricity
04
M
344/14
H04M 3/56 (2006.01) H04J 3/02 (2006.01)
Patent
CA 1146248
TITLE MULTIPORT CONFERENCE CIRCUIT WITH MULTI-FRAME SUMMING ABSTRACT OF THE DISCLOSURE An improved conference circuit for use in a Pulse Code Modulation telephone switching system wherein a number of channels are combined so that a number of subscribers may participate in a common telephone conversation. The conference circuit is provided with a multi-frame voice level summing arrange- ment whereby spurious channel switching caused by noise peaks is effectively eliminated.
357222
Funderburk Tim
Mclaughlin Donald W.
Gte Automatic Electric Incorporated
R. William Wray & Associates
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