Communications: electrical – Continuously variable indicating
Reexamination Certificate
2003-12-18
2010-10-26
Kincaid, Lester (Department: 2617)
Communications: electrical
Continuously variable indicating
C340S870160, C340S870170, C340S870180, C340S870190, C340S870200, C340S870210, C340S870220, C340S870230
Reexamination Certificate
active
07821420
ABSTRACT:
A transmission system for a measurement device on a coordinate positioning apparatus comprises a station (18) mounted on the measuring device (10) and a station (20) mounted on the coordinate positioning apparatus (22), wherein the stations communicate with each other using a spread spectrum radio link, for example frequency hopping. The station on the probe sends a regular signal and on receiving the signal the station on the coordinate positioning apparatus synchronises its clock and sends an acknowledgement signal. Measurement data is either sent in the regular signal or in a measurement event driven signal.
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Liptrot John
Styles John
Woollett Martin
Khan Mehmood B
Kincaid Lester
Oliff & Berridg,e PLC
Renishaw PLC
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