Appeal No. 1997-2008
Application No. 08/270,931
with a surface wave structure. Claim 1 is illustrative of the
claimed invention, and it reads as follows:
1. In a system including an interrogation device having a
transmitting part supplying interrogation signals, a receiving
part and an evaluation part,
a passive apparatus to be interrogated by radio and used as a
measuring sensor, comprising:
a first passive surface wave structure defining a sensor
element supplying sensor output signals upon receiving
interrogation signals from the transmitting part of the
interrogation device;
a second passive surface wave structure defining a reference
element supplying reference output signals upon receiving the
interrogation signals from the transmitting part of the
interrogation device;
the interrogation device interrogating a measured value being
formed from a comparison of the output sensor signals of said
sensor element and the reference output signals of said
reference element resulting from the interrogation signals;
and
said sensor element and said reference element having
different sensitivities to a variable to be measured.
The prior art references of record relied upon by the
examiner in rejecting the appealed claims are:
Schwartz 3,888,115 June 10,
1975
Skeie 4,620,191 Oct. 28,
1986
Nysen et al. (Nysen I) 4,725,841 Feb. 16,
1988
2
Page: Previous 1 2 3 4 5 6 7 Next
Last modified: November 3, 2007