Dane Smith - Green Valley AZ Chris M. Valente - Elmhurst IL Martin Rathgeber - Chicago IL Mark D. Siegler - Brookfield IL
Assignee:
The Chamberlain Group, Inc. - Elmhurst IL
International Classification:
G01D 534
US Classification:
25023114, 25023118, 341 13
Abstract:
A movable barrier operator includes an absolute position detector which provides a unique value for each position of the barrier along its path of travel. The absolute position detector employs multiple binary serial streams and one multiple clock stream. After the first five cycles of the clock stream, the binary streams can be decoded by a processor to produce an absolute position. Every clock edge produces a new absolute position along the path of travel.