Method and circuit for digitally correcting the frequency of...

Details Method and circuit for digitally correcting the frequency of... Method and circuit for digitally correcting the frequency of...

2007-02-06

2007-02-06

Kumar, Pankaj (Department: 2611)

Pulse or digital communications

Receivers

Angle modulation

C375S322000, C375S324000, C329S315000

Reexamination Certificate

active

10089805

ABSTRACT:
A method and a circuit for the digital correction of a frequency of a signal, especially for use in a transmitter/receiver circuit include rotating a signal “pointer” (i0, q0) using a CORDIC algorithm, through a predetermined angle in a complex I/Q plane corresponding to a correction frequency. The CORDIC algorithm includes micro-rotation blocks corresponding to N stages, and a character table and a register.

REFERENCES:
patent: 4603300 (1986-07-01), Welles et al.
patent: 4884265 (1989-11-01), Schroeder et al.
patent: 5052050 (1991-09-01), Collier et al.
patent: 5550869 (1996-08-01), Gurantz et al.
patent: 5748682 (1998-05-01), Mobin
patent: 5784414 (1998-07-01), Bruekers et al.
patent: 6192089 (2001-02-01), Corleto et al.
patent: 6693970 (2004-02-01), Vankka
patent: 2003/0206600 (2003-11-01), Vankka
patent: 0 481 543 (1992-04-01), None
patent: 0 486 095 (1992-05-01), None
patent: 0 545 546 (1993-06-01), None
Jack E. Volder, ‘The CORDIC Trigonometric Computing Technique’, Sep. 1959, IRE Transcations on Electronic Computers, vol. EC-8, pp. 330-334.
S. Nahm et al., “A Cordic-Based Digital Quadrature Mixer: Comparison with a ROM-Based Architecture”, ISCAS '98. Proceedings of the 1998 IEEE International Symposium on Circuits and Systems, Bd. 4, May 31, 1998, Seiten 385-388, XP000873520, New York, USA ISBN: 0-7803-4456-1, Seite 386 Linke Spalte.

Affiliated with

Also associated with

Rating

Method and circuit for digitally correcting the frequency of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and circuit for digitally correcting the frequency of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and circuit for digitally correcting the frequency of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3894165