Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Patent
1996-07-18
2000-01-25
Chin, Wellington
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
455418, 455419, H04Q 730
Patent
active
060186569
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. Activation information is then provided by the access center to the manufacturer of the cellular phones in order to plan future production, target marketing and track dealer inventory.
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Chin Wellington
Kananen Ronald P.
Sony Corporation
Sony Electronics Inc.
Tran Pablo N.
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