H - Electricity – 04 – B
Patent
H - Electricity
04
B
379/11, 325/17
H04B 7/26 (2006.01) H04Q 7/32 (2006.01)
Patent
CA 1248589
ABSTRACT OF THE DISCLOSURE Disclosed is a mobile radio telephone apparatus for use in data communication including a transmitter/receiver, a tone signal generator, a DTMF (dual tone multi-frequency) signal generator, a data terminal, and a data modem interposed between the data terminal, and a data modem interposed between the data terminal and the transmitter/receiver and having a cen- tral processor for controlling data transmission and/or reception, the processing means detecting completion of data transmission and/or reception thereby starting the tone signal generator.
501328
Fetherstonhaugh & Co.
Oki Electric Industry Co. Ltd.
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