Appeal No. 1997-2455
Application 08/318,235
voltage controlled resistors, voltage controlled charge
injectors or a voltage controlled reactive load. Appellants
identify on page 16 of the specification that the tag includes
a microprocessor which controls the operation of all the units
of the tag. On page 15 of the specification, Appellants
identify that the tag also includes a power developer, which
draws power from the transducer and provides power to the
other units in the tag. As described in further detail on
pages 17 and 18 of Appellants’ specification, the power
developer may contain either a capacitor or battery, which is
charged when the carrier signal is present. Appellants
identify on page 17 of the specification that in the
embodiment which uses a battery, the battery is the power
source for all of the tag components. Appellants identify on
page 18 of the specification that in the embodiment which uses
a capacitor, power is provided to the tag components from the
capacitor charging circuit when the reader is transmitting the
carrier signal and the capacitor provides power to the tag
during those periods of time that the reader is not
transmitting a carrier.
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