International Standard Electric Corporation

Plextex Limited

Michael John Woodley

Ian A Vance

Ian Murphy

Brian A Bidwell

David F Leevers

Colin Jeffrey

Rotary piston internal combustion engine

A method of synchronizing a digital radio pager receiver with incoming digital data signals. At switch-on the receiver first attains a 'course' bit synch during the first quarter-word period and then a 'fine' bit synch during the next half-word period. The receiver then examines incoming data bits to determine simultaneously (a) whether valid data is being received and (b) whether the incoming data contains a preamble sequence. If either determination is successful the incoming data is then examined to determine whether it contains a synchronizing word or an address word. The synchronization and address word determination is also carried out while bit synch is obtained and the valid data/preamble determination is effected.

Synchronization of digital radio pager

Growing community of inventors

Hitchin, United Kingdom

Michael John Woodley