Digital interpolation filter and method of operating the...

Electrical computers: arithmetic processing and calculating – Electrical digital calculating computer – Particular function performed

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07076512

ABSTRACT:
A digital comb filter contains filter stages. Each filter stage has a latch disposed at a filter stage input, which latch, by outputting each input data value twice in each case doubles the sampling rate. Each filter stage further has a filter structure, a partial transfer function {overscore (H)} (z) of which is {overscore (H)}(z)α(1+z−1)k−1, where k is an order of the filter device and z−1is the z transform of a delay by one sampling pulse. The implementation according to the invention does not require an error correction circuit.

REFERENCES:
patent: 5079734 (1992-01-01), Riley
patent: 5191334 (1993-03-01), Yasuda
patent: 5590065 (1996-12-01), Lin
patent: 5835390 (1998-11-01), Trager
patent: 05-243906 (1993-09-01), None
patent: 09-162699 (1997-06-01), None
Saramäki, T. et al.: “VLSI-Realizable Multiplier-Free Interpolators for High-Order Sigma-Delta D/A Converters”, IEEE, 1991, pp. 295-298.
Chu, S. et al.: “Multirate Filter Designs Using Comb Filters”, IEEE Transactions on Circuits and Systems, vol. CAS-31, No. 11, Nov. 1984, pp. 405-416.
Hogenauer, E.: “An Economical Class of Digital Filters for Decimation and Interpolation”, IEEE Transactions on Acoustics, Speech, and Signal Processing, vol. ASSP-29, No. 2, Apr. 1981, pp. 155-162.

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 interpolation filter and method of operating the... 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 interpolation filter and method of operating the..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital interpolation filter and method of operating the... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3527500

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