System and method for updating a memory in an electronic device via wireless data transfer
US5974312A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 10, 1997 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Jul 10, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F8/65
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An electronic device has a microprocessor operable in a plurality of modes including a memory update mode, a nonvolatile memory and a wireless communication interface for receiving data over a wireless communication channel. In one embodiment, the electronic device includes a wake-up or timer circuit for automatically placing the electronic device in a wireless memory update mode. Data received by said wireless communication interface is stored in the nonvolatile memory by the microprocessor in response to receipt of the data while the microprocessor is in memory update mode. A programming unit for transmitting update data has a microprocessor, a wireless communication interface and a memory containing update data. A communication path is established between the programming unit and the electronic device. A system for updating data stored in a nonvolatile memory of a plurality of electronic devices includes a programming unit and a plurality of electronic devices. A method of updating data stored in the nonvolatile memories of a plurality of electronic devices includes placing a programming unit in proximity to the plurality of electronic devices and activating a wireless update ro…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.