Telephonic communications – Multi-line or key substation system with selective switching...
Patent
1997-03-12
1998-03-24
Kuntz, Curtis
Telephonic communications
Multi-line or key substation system with selective switching...
379165, 370449, H04M 100
Patent
active
057321299
ABSTRACT:
A method of improving the speed of a computer communication interface module in a key telephone system is disclosed including the steps of: (a) detecting if control data transmission/reception interrupt occurs or not; (b) checking start flag in control data; (c) performing computer communication data polling at interval less than half of a control data processing clock; (d) receiving or transmitting one byte of computer data during the period of less than half of the clock, if there is an event of computer communication data after the polling; and (e) checking an end flag, finishing the process if there is an end flag, and carrying out processes repeatedly from step (c) if there is no end flag.
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Barnie Rexford
Kuntz Curtis
LG Electronics Inc.
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