Radiotelephone operating technique

Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail

Patent

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Details

455550, H04Q7/32

Patent

active

059038527

ABSTRACT:
The present disclosure includes a discussion of an operating technique for a radiotelephone (101). The radiotelephone (101) has a memory (907), a display (127) and a keypad (117) which includes a first function key (107), a second function key (109), and a plurality of data keys (119). An actuation of the first function key (107) creates a first function key signal for recalling a telephone number. Once the telephone number has been selected, a subsequent actuation of the first function key (107) creates a second function key signal for connecting a call based on the telephone number. During the call, an actuation of the second function key (109) creates a third function key signal for disconnecting the call. A subsequent actuation of the second function key (109) creates a fourth function key signal for turning off the radiotelephone (213).

REFERENCES:
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patent: 4736410 (1988-04-01), Nishida et al.
patent: 4769516 (1988-09-01), Allen
patent: 4872196 (1989-10-01), Royer et al.
patent: 4979207 (1990-12-01), Baum et al.
patent: 5007077 (1991-04-01), Fields et al.
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Motorola Micro TAC 9800XL Cellular Portable Telephone User's Manual, 1989. This manual describes the operation of a cellular portable telephone which is currently available.

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