Pulse or digital communications – Bandwidth reduction or expansion – Television or motion video signal
Reexamination Certificate
2005-11-29
2005-11-29
Chin, Stephen (Department: 2634)
Pulse or digital communications
Bandwidth reduction or expansion
Television or motion video signal
C708S313000
Reexamination Certificate
active
06970511
ABSTRACT:
An interpolator, method of interpolating a one-bit signal and resampler employing the interpolator and method. The interpolator employs a cascaded architecture to interpolate a one-bit input signal received at an input thereof. In one embodiment, the interpolator includes a multiple order interpolation filter that generates a sample range from at least three input samples associated with the one-bit input signal. The interpolator further includes a linear interpolation filter, associated with the multiple order interpolation filter, that develops a plurality of samples within the sample range.
REFERENCES:
patent: 4707824 (1987-11-01), Kanemasa
patent: 4924492 (1990-05-01), Gitlin et al.
patent: 5351087 (1994-09-01), Christopher et al.
patent: 5353279 (1994-10-01), Koyama
patent: 5396517 (1995-03-01), Yedid et al.
patent: 5418849 (1995-05-01), Cannalire et al.
patent: 5512898 (1996-04-01), Norsworthy et al.
patent: 5604769 (1997-02-01), Wang
patent: 5610909 (1997-03-01), Shaw
patent: 5631899 (1997-05-01), Duttweiler
patent: 5668794 (1997-09-01), McCaslin et al.
patent: 5732107 (1998-03-01), Phillips et al.
patent: 5748126 (1998-05-01), Ma et al.
patent: 5809033 (1998-09-01), Turner et al.
patent: 5841809 (1998-11-01), Koizumi et al.
patent: 5926505 (1999-07-01), Long
patent: 5970137 (1999-10-01), LeDamany et al.
patent: 6208671 (2001-03-01), Paulos et al.
patent: 6240128 (2001-05-01), Banerjea et al.
patent: 6389064 (2002-05-01), Dholakia et al.
patent: 6434233 (2002-08-01), Bjarnason et al.
patent: 6526139 (2003-02-01), Rousell et al.
patent: 6532289 (2003-03-01), Magid
patent: 6573940 (2003-06-01), Yang
patent: 6597787 (2003-07-01), Lindgren et al.
patent: 6628738 (2003-09-01), Peeters et al.
Floyd M. Gardner “Interpolation in Digital Modems—Part I: Fundamentals” IEEE Transactoins on Communications, vol. 41, No. 3, Mar. 1993; pp. 501-507.
Lars Erup, et al. “Interpolation in Digital Modems—Part II: Implementation and Performance” IEEE Transactions on Communications, vol. 41, No. 6, Jun. 1993; pp. 998-1008.
James D. Barnette, et al.; U.S. Appl. No. 09/652,116, filed Aug. 29, 2000 entitled “Resampler for a bit Pump and Method of Resampling a Signal Associated Therewith”; pp. 1-59; 6 drawing sheets.
Mandeep Singh Chadha, et al.; U.S. Appl. No. 09/650,854, filed Aug. 29, 2000 entitled “Separation Circuit for an Echo Canceling System and Method of Operating the Same”; pp. 1-67; 6 drawing sheets.
Mandeep Singh Chadha, et al.; U.S. Appl. No. 09/650,853, filed Aug. 29, 2000 entitled “Echo Canceling System for a Bit Pump and Method of Opearting the Same”; pp. 1-60; 5 drawing sheets.
Mandeep Singh Chadha, et al.; U.S. Appl. No. 09/650,851, filed Aug. 29, 2000 entitled “Filter Circuit for a Bit Pump and Method of Configuring the Same” pp. 1-57; 7 drawing sheets.
“Multirate Systems and Filter Banks,” by P. P. Vaidyanathan. Prentice Hall Signal Processing Series. Chap. 5. Section 5.3. pp. 211-213. Jul. 1992.
Kim Kevin
Lucent Technologies - Inc.
LandOfFree
Interpolator, a resampler employing the interpolator and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Interpolator, a resampler employing the interpolator and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolator, a resampler employing the interpolator and... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3481508