Circuit and method for correcting phase error in a multiplier ci

Details Circuit and method for correcting phase error in a multiplier ci Circuit and method for correcting phase error in a multiplier ci

1996-03-25

1997-08-19

Tran, Toan

Miscellaneous active electrical nonlinear devices, circuits, and

Specific input to output function

Combining of plural signals

327359, G06F 744

Patent

active

056592639

ABSTRACT:
A circuit and method for reducing a phase error at the output terminal (48) of a multiplier circuit (41) is provided. The phase error arises when first and second input signals having asymmetric signal paths are multiplied in the multiplier circuit (41). A second multiplier circuit (42) multiplies the in-phase and quadrature signals and produces an output signal at an output terminal (49) which contains the phase error but with the opposite polarity as the phase error produced by the first multiplier circuit (41). The signals at the output terminals (48) and (49) are summed in a summing circuit (43) to produce a third output signal in which the phase error is canceled.

REFERENCES:
patent: 3761829 (1973-09-01), Spaulding
patent: 4006353 (1977-02-01), Pierce
patent: 4088960 (1978-05-01), Osborne
patent: 4394626 (1983-07-01), Kurihara et al.
patent: 4894845 (1990-01-01), Jansen et al.
patent: 5438301 (1995-08-01), Havens et al.
Asad A. Abidi, "Direct-Conversion Radio Transceivers for Digital Communications, IEEE Journal of Solid-State Circuits,", vol. 30, No. 12, Dec. 1995, pp. 1399-1410.

Affiliated with

Also associated with

Rating

Circuit and method for correcting phase error in a multiplier ci does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit and method for correcting phase error in a multiplier ci, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit and method for correcting phase error in a multiplier ci will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1107565