Telecommunications – Receiver or analog modulated signal frequency converter – Frequency modifying or conversion
Reexamination Certificate
2005-05-31
2005-05-31
Trinh, Sonny (Department: 2687)
Telecommunications
Receiver or analog modulated signal frequency converter
Frequency modifying or conversion
C455S318000, C455S323000, C455S196100, C455S302000, C348S731000, C386S349000, C386S349000
Reexamination Certificate
active
06901248
ABSTRACT:
A single conversion frequency converter comprises an image reject mixer and a local oscillator. The local oscillator comprises a variable frequency oscillator and a variable divider. The variable divider supplies to the mixer a local oscillator signal whose frequency is a sub-multiple of the frequency of the variable frequency oscillator.
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Kirschstein et al.
Torres Marcos L
Trinh Sonny
Zarlink Semiconductor Limited
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