Low voltage mixer

Details Low voltage mixer Low voltage mixer

2007-12-11

2007-12-11

Vuong, Quochien B. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S131000

Reexamination Certificate

active

11131339

ABSTRACT:
A mixer comprising a pair of low frequency mixer inputs, a pair of high frequency mixer inputs, a pair of mixer outputs, four switching units, each switching unit comprising a low frequency switching unit input, a high frequency switching unit input, a switching unit output, a node connected via a high pass filter to the respective high frequency switching unit input and via a low pass filter to the respective low frequency switching unit input and a switching device arranged to provide an output at the respective switching unit output in dependence on the voltage at the respective node, and comprising a first feedback loop responsive to the voltage at the first low frequency mixer input and arranged to regulate the current through the outputs of the first and second ones of the switching units so that the total current through the outputs of the first and second ones of the switching units is substantially proportional to the voltage at the first low frequency mixer input and a second feedback loop responsive to the voltage at the second low frequency mixer input and arranged to regulate the current through the outputs of the third and fourth ones of the switching units so that the total current through the outputs of the third and fourth ones of the switching units is substantially proportional to the voltage at the second low frequency mixer input.

REFERENCES:
patent: 5864255 (1999-01-01), Kwok et al.
patent: 5995819 (1999-11-01), Yamaji et al.
patent: 6711396 (2004-03-01), Bergsma et al.
patent: 7181186 (2007-02-01), Oh et al.

Affiliated with

Also associated with

Rating

Low voltage mixer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low voltage mixer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low voltage mixer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3879353