Keyless vehicle entry receiver having a diagnostic mode of operation wherein a code comparison is not performed
US5684337A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 8, 1996 |
| Grant date | Nov 4, 1997 |
| Priority date | — |
| Expiry date | Mar 8, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07C2009/00793
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A receiver is presented herein for use in a keyless vehicle entry system for controlling a vehicle device function, such as unlocking a vehicle door, in response to a vehicle function request signal received from a portable transmitter. The receiver includes a controller having a normal mode of operation during which it receives a request signal and determines whether the request signal is valid and, if so, it initiates the vehicle device function. The controller has a diagnostic mode of operation during which it initiates the vehicle device function in response to receiving a request signal without determining whether the request signal is valid. Provision is made for switching between the modes of operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.