Cellular telephone communication protocol

Details Cellular telephone communication protocol Cellular telephone communication protocol

1997-11-06

2000-01-04

Pham, Chi H.

Multiplex communications

Communication techniques for information carried in plural...

Combining or distributing information via frequency channels

375217, H04Q 700

Patent

active

060118067

ABSTRACT:
A cellular telephone communication protocol enables a communication link primarily for the transmission of voice and data. At predetermined intervals or on-demand data regarding location, an event, or a condition is sent by muting the voice audio and sending a data frame having a pre-determined sequence. Following the transmission of the location, event, or condition data transmission of voice and data is resumed. The communication link uses a half duplex, frequency shift, keying modulation technique.

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