Mixer with a variable gain current-to-voltage converter

Details Mixer with a variable gain current-to-voltage converter Mixer with a variable gain current-to-voltage converter

2006-02-14

2006-02-14

Nguyen, Duc M. (Department: 2685)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S323000, C455S326000, C455S333000, C327S102000, C327S103000

Reexamination Certificate

active

06999745

ABSTRACT:
A receiver comprising an input for receiving a first signal, said receiver further comprising a local oscillator for generating a periodical signal. The receiver further comprises a mixer for generating a third signal representative for a combination of a second signal and the periodical signal. The receiver is characterized in that it further comprises a voltage to current converter for receiving the first signal and generating the second signal as a current indicative for the first signal. The mixer comprises a plurality of controllable switches. The receiver further comprises a variable gain current to voltage converter (VGIV) coupled to the passive mixer, the VGIV receiving the third signal and generating a first voltage signal, said first voltage signal being in a linear relationship with the third signal.

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patent: 2002/0039052 (2002-04-01), Straub et al.
patent: WO0137436 (2001-05-01), None

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