Oscillators – Beat frequency
Reexamination Certificate
2005-02-01
2005-02-01
Mis, David (Department: 2817)
Oscillators
Beat frequency
C331S040000, C327S255000, C455S323000
Reexamination Certificate
active
06850121
ABSTRACT:
A transmit frequency is generated for a transceiver by a controllable oscillator which generates an oscillator frequency, a divider by a factor N, and a mixer stage with a subsequent band filter. Signals with the oscillator frequency and the oscillator frequency divided by the factor N are to the mixer stage to generate an output signal at the transmit frequency.
REFERENCES:
patent: 4105949 (1978-08-01), Hardin
patent: 5179359 (1993-01-01), McLeod
patent: 5220557 (1993-06-01), Kelley
patent: 5307029 (1994-04-01), Schenk
patent: 25 23 131 (1976-12-01), None
patent: 195 43 844 (1996-06-01), None
Detering Volker
Heinen Stefan
Mis David
Siemens Aktiengesellschaft
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