Digital signal processor transceiver

Pulse or digital communications – Transmitters

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S303000

Reexamination Certificate

active

07103108

ABSTRACT:
A digital signal processor transceiver uses a finite impulse response filter memory to construct a phase integrated angle at each clock cycle. The FIR filter memory is addressed by a multibit pattern and a time count which are used in conjunction to determine the address. Each data word of the FIR filter memory represents the sum of two tap points multiplied by their tap coefficients. Several of the most significant bits of the phase integrated angle are used to address look up tables for the signal's sine and cosine values. The address for the cosine look up table may further be phase compensated. Filter types other than a FIR filter may be used.

REFERENCES:
patent: 3971996 (1976-07-01), Motley et al.
patent: 4672634 (1987-06-01), Chung et al.
patent: 4905177 (1990-02-01), Weaver et al.
patent: 5140613 (1992-08-01), Birgenheier et al.
patent: 5225798 (1993-07-01), Hunsinger et al.
patent: 5274669 (1993-12-01), Klank et al.
patent: 5285479 (1994-02-01), Iwane
patent: 5444739 (1995-08-01), Uesugi et al.
patent: 5491446 (1996-02-01), Okada et al.
patent: 5548253 (1996-08-01), Durrant
patent: 5802104 (1998-09-01), Thomas
patent: 5903611 (1999-05-01), Schnabl et al.
patent: 6320914 (2001-11-01), Dent
patent: 6359936 (2002-03-01), Shyue
patent: 6438176 (2002-08-01), Haran et al.
patent: 6459742 (2002-10-01), Marque-Pucheu et al.
patent: 6470055 (2002-10-01), Feher
patent: 6483867 (2002-11-01), Mannermaa

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Digital signal processor transceiver does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

     

Profile ID: LFUS-PAI-O-3613973

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.