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Patent Searching and Data


Title:
ORDER CIRCUIT EQUIPMENT
Document Type and Number:
Japanese Patent JPS6234435
Kind Code:
A
Abstract:

PURPOSE: To simplify the circuit configuration of an order circuit equipment, by changing call signals and carriers under a time sharing condition by means of switches.

CONSTITUTION: By providing a transmission-side switch 2 and reception-side switch 20, which are successively switched to each other and select talking channels of more than one at a transmission and receiving sections when a drive signal Pc is inputted, and switches 13 for control which are successively switched to each other and select a talking signal and more than one carriers for modulating and demodulating a high-frequency transmission signal, call signals are processed under a time sharing condition at every talking channel. Therefore, the circuit configuration of this order circuit equipment becomes simple and the equipment can be miniaturized and made inexpensive.


Inventors:
HORIO MITSURU
Application Number:
JP1985000172370
Publication Date:
February 14, 1987
Filing Date:
August 07, 1985
Export Citation:
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Assignee:
NEC CORP
International Classes:
H04J4/00; (IPC1-7): H04J4/00