Keyless access control device has two or more different encoding algorithms placed in memory element(s) in identification emitter(s) for selective call up by microprocessor(s)

摘要

The device has at least two object modules (1,2), each associated with a defined object and containing transmitter/receiver devices (4,5), and one or more identification emitters (10) with microprocessor(s) (11) exchanging coded data with object modules via bi-directional data communications paths. Different encoding algorithms are placed in a memory element(s) (13) in the identification emitter(s) for selective call up by the microprocessor(s). Independent claims are also included for the following: an identification emitter for exchanging data with object modules and an object module for a keyless access control device.