Appeal No. 1997-2455
Application 08/318,235
consideration as part of a restriction requirement. Claims 5
through 11, 56 through 62 and 72 have been canceled.
The invention relates to an electronic identification
tag. On page 12 of the specification, Appellants identify
that the tag communicates with a reader when the tag detects
the presence of a carrier signal. As described in the
Appellants' specification on page 2, the carrier signal
provides both information and power to the tag. Appellants
describe on page 13 of the specification that a communications
coupling is made by an alternating magnetic field, which is
detected by a transducer in the tag. As Appellants identify
on page 14 of the specification, the transducer “is a resonant
device which must be tuned electrically to achieve maximum
power transfer between reader and tag.” Further, on page 15
of the specification, the Appellants identify that the
frequency of the carrier signal is measured and used to tune
the transducer. The tag also contains a modulator connected
across the transducer to generate messages to be transmitted
to the reader. The modulator is shown in figure 5, and is
described on pages 26 and 27 of Appellants’ specification as
generating a waveform by placing across the transducer either:
2
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