Channel access system

Details Channel access system Channel access system

H - Electricity

04

J

363/16

H04J 3/02 (2006.01) H04J 3/06 (2006.01)

Patent

CA 2014489

ABSTRACT OF THE DISCLOSURE A channel access system comprises n channel parts for receiving m channels of voice signals and for outputting voice frequency data and signaling data, and a multiplexer part for receiving the voice frequency data and the signaling data of the m channels from the n channel parts and for supplying channel access signals to the n channel parts for designating a channel of the voice frequency data, where each of the n channel parts include a coder for coding a corresponding one of the voice signals into one of the voice frequency data, a decoder for decoding the channel access signals and for generating a synchronizing signal which is synchronized to a corresponding one of the channel access signals which designates its own channel, a signaling converter for converting the corresponding one of the signaling signals into a corresponding one of the signaling data, and a speed converting circuit for converting a transmission speed of the signaling data from a first transmission speed to a second transmission speed which is higher than the first transmission speed. The synchronizing signal controls a coding timing of the coder and a speed conversion timing of the speed converting circuit.

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