System and method for user-programmable service programming of cellular telephones
US5842124A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1996 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Nov 15, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/08
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system for user-programming of system parameters of a cellular telephone. Data values for the system parameters are stored in a nonvolatile memory within the cellular telephone. A password storage area stores one or more predetermined passwords. After purchasing the telephone, the end-user calls a predetermined telephone number and receives one of the predetermined passwords. The user enables a programming mode and enters the predetermined password using the cellular telephone keypad. If the user-entered password matches the stored predetermined password, the cellular telephone allows user access to at least a portion of the system parameters in the nonvolatile memory. A counter tracks the number of user-programming attempts and terminates the programming after either a predetermined number of failures or successful programming of all the desired system parameter values.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.