Telecommunications – Receiver or analog modulated signal frequency converter – Frequency or phase modulation
Reexamination Certificate
2007-01-16
2007-01-16
Nguyen, Lee (Department: 2618)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency or phase modulation
C455S209000, C455S315000, C455S317000
Reexamination Certificate
active
10288097
ABSTRACT:
Whenever the oscillator frequency is a fraction or a multiple of the received frequency, another received frequency could in turn be there, which would then work as a kind of received disturbance frequency, and thus oscillator pulling occurs, which then severely impairs evaluation of the received signal. The method according to the invention for driving a receiver stage having a selection means, having a control unit and an oscillator is distinguished by the fact that the selection means is driven such that whenever the oscillator frequency is a fraction or a multiple of a received disturbance frequency, this received disturbance frequency is attenuated by the selection means.
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Clemens Klaus
Peusens Herbert
Cromarty Brian J.
Laks Joseph J.
Nguyen Lee
Shedd Robert D.
Thomson Licensing
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