Process for control of standby currents in a direct...

Details Process for control of standby currents in a direct... Process for control of standby currents in a direct...

2007-10-09

2007-10-09

Urban, Edward F. (Department: 2618)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S324000, C455S333000, C327S355000

Reexamination Certificate

active

10649345

ABSTRACT:
A direct conversion type of frequency transposition device includes a transconductor block receiving the input signal and a current switching block connected to the output from the device. At least the common mode (Iif1+Iif2) is servocontrolled to static output currents from the frequency transposition device on a current proportional to a reference current (Iref) and independent of the static output currents from the transconductor block.

REFERENCES:
patent: 5532637 (1996-07-01), Khoury et al.
patent: 5548840 (1996-08-01), Heck
patent: 5587682 (1996-12-01), Colli et al.
patent: 5613233 (1997-03-01), Vagher
patent: 5886547 (1999-03-01), Durec et al.
patent: 6021323 (2000-02-01), Vagher
patent: 6023196 (2000-02-01), Ashby et al.
patent: 6037825 (2000-03-01), Kung
patent: 6819914 (2004-11-01), Yan et al.
patent: 6922556 (2005-07-01), Beumer
French Search Report, FR 0210647, dated Feb. 12, 2003.

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