Radiotelephone including battery-backup random access memory for

Details Radiotelephone including battery-backup random access memory for Radiotelephone including battery-backup random access memory for

1992-06-11

1994-09-20

Urban, Edward F.

Telecommunications

Transmitter and receiver at same station

With a common signal processing stage

455127, 379 58, 371 215, H04B 138

Patent

active

053496973

ABSTRACT:
The program code of an object program of a radiotelephone is recorded into a RAM (3) rather than in an EPROM as is conventional. The checking of the program code and the loading of the program from an external device coupled thereto via an external bus is controlled by program recorded in a ROM (4). This allows the program code to be changed and updated as required with time consuming and expensive replacement of a whole memory.

REFERENCES:
patent: 3882400 (1975-05-01), Hamada
patent: 3980935 (1976-09-01), Worst
patent: 4119915 (1978-10-01), Maddaloni
patent: 4525865 (1985-06-01), Mears
patent: 4593155 (1986-06-01), Hawkins
patent: 4606076 (1986-08-01), Davis
patent: 4646307 (1987-02-01), Nishimura
patent: 4698808 (1987-10-01), Ishii
patent: 4710971 (1987-12-01), Nozaki et al.
patent: 4771399 (1988-09-01), Snowden et al.
patent: 5086509 (1992-02-01), Inubushi et al.
Finnish Office Action dated Feb. 21, 1992.

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