Appeal No. 20000-0717
Application 08/906,676
a voltage controlled oscillator for providing a high
frequency source signal;
a divider coupled to the voltage controlled oscillator
and receiving the source signal, the divider providing a
divided high frequency signal; and
a phase locked filter including:
a first signal splitter having a source input, a first
output, and a second output the source input being coupled to
the divider to receive the divided high frequency signal;
a band pass filter having a signal input, a signal
output, and a control input, the signal input being coupled to
the first output, the band pass filter having a frequency
response in accordance with a control signal at the control
input;
a second signal splitter having a filter input, a third
output, and a fourth output, the filter input being coupled to
the signal output; and
a phase control circuit having a first phase input, a
second phase input, and a phase output, the first phase input
being coupled to the second output, the second phase input
being coupled to the third output, the phase output being
coupled to the control input.
The examiner relies on the following references:
Rogers, Jr. 4,316,108 Feb. 16,
1982
Claims 1-20 stand rejected under 35 U.S.C. 103 as
unpatentable over Rogers.
Reference is made to the brief and answer for the
2
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007