Programmable cellular telephone and system

Telephonic communications – Having light wave or ultrasonic link for speech or paging... – Including fiber optic link within telephone network

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Details

379 59, 455 331, H04Q 732, H04Q 738

Patent

active

055725716

ABSTRACT:
A module (P-code module) provides parameter information to a Number Assignment Module (NAM) in a cellular phone unit by processing a simple programming code (P-code) entered by the user through a telephone keypad. The P-code employs a flexible length telephone keypad coding that can be translated into programmable parameters of cellular phone products. Field identification numbers and look-up tables are used to shorten the P-code length for more frequently used information. To activate a cellular phone, the user provides product and serial number information to a dial-up access center which then generates a scrambled P-code for entry by the user. The P-code module within the processor unit of the cellular phone likewise descrambles, decompresses, and performs an integrity check on the sequence of digits being entered by the user. This P-code module reduces the technical requirements for programming a cellular phone purchased at the retail level such that a user can perform the necessary programming for activating the cellular telephone on a local telephone network.

REFERENCES:
patent: 4958368 (1990-09-01), Parker
patent: 5257412 (1993-10-01), Tomioka et al.
patent: 5297191 (1994-03-01), Gerseberg
patent: 5297192 (1994-03-01), Gerseberg
patent: 5301223 (1994-04-01), Amadon et al.
patent: 5315638 (1994-05-01), Mukari
patent: 5386455 (1995-01-01), Cooper
patent: 5414753 (1995-05-01), Ehara
CM-H333 Portable Cellular Telepone with Accessories, "Operating Instructions", 1993.
CM-H333 "Instructions for Programming NAM Data".

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