7, 8 segment display for mobile radio telephone

Details 7, 8 segment display for mobile radio telephone 7, 8 segment display for mobile radio telephone

1994-09-14

2000-11-21

Cumming, William

Telecommunications

Transmitter and receiver at same station

Radiotelephone equipment detail

4551581, 4551582, H04B 138, H04M 100

Patent

active

061515159

ABSTRACT:
A display for a mobile radio telephone apparatus includes a single 7, 8 segment LED display for displaying alphanumeric characters one at a time in sequence as dialed, and which also displays indications of various operating parameters of the telephone apparatus, such as a roaming function or in use status, by using predetermined ones of the same segments that are used to display the alphanumeric characters. In this way, a single seven segment display plus an eighth display indicator segment is all that is required to display any character, digit or indication of operational status of the mobile radio telephone apparatus.

REFERENCES:
patent: 4047227 (1977-09-01), Rzeszewski
patent: 4264979 (1981-04-01), Gutowski
patent: 4320255 (1982-03-01), Null et al.
patent: 4495651 (1985-01-01), Froeliger
patent: 5337346 (1994-08-01), Uchikura
patent: 5371788 (1994-12-01), Baals et al.
America Online, "Bellsouth Cellular/IBM Simon", May 1994.
America Online, "Clarion CAL-1000", May 1994.
Wagenlehner, "Mobile Telephoning Made Easy", Telcom Report 10, #4, Apr. 1987.
DIGI-Key, Catalog #902, Mar. 1990.
Motorola, "User Manual", 68PO9369A99-0, Jan. 1993.
Bell Atlantic Mobile, "Bell Atlantic SEIII-M", Nov. 1993.
America Online, "Motorola 2900NX", Mar. 1995.
America Online, "Panasonic EB-H40", Mar. 1995.

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