Interpolator/decimator filter structure and a digital filter the

Details Interpolator/decimator filter structure and a digital filter the Interpolator/decimator filter structure and a digital filter the

1986-08-08

1989-09-05

Harkom, Gary V.

Boots, shoes, and leggings

36472417, G06F 1531

Patent

active

048645265

ABSTRACT:
An interpolator or decimator filter structure operable between two sampling rates (F.sub.s and 2F.sub.2), and in which two branches (21 and 23) of the structure are divided into low and high frequency sections by sampling switches (27 and 29). The high frequency section of one branch (21) incorporates a composite filter comprises of a nesting filter (1') and a nested filter 1. Each of these filters 1, 1' includes a digital coefficient multiplier (5,5'). The coefficient (K.sub.2) of the coefficient multiplier (5), part of the nested filter (1), is preset to a value such that 3 dB attenuation occurs at a point offset in frequency from one-half the lower sampling rate (F.sub.s).

REFERENCES:
patent: 3855423 (1974-12-01), Brendzel et al.
patent: 4270026 (1981-05-01), Shenoi et al.
patent: 4270027 (1981-05-01), Agrawal et al.
patent: 4302631 (1981-11-01), Shenoi et al.
patent: 4649507 (1987-03-01), Inaba et al.
Nussbaumer, "Digital Filtering Using a Split Vesting Technique" IBM Tech. Disclosure Bulletin, vol. 21, #12, pp. 647-648, Jul. 1978.
Nussbaumer, "Nesting Implementation of Digital Filter Banks", IBM Tech. Disclosure Bulletin, vol. 24 #6, pp. 3068-3073, Nov. 1981.
Glockler, "A Unified State-Space Representation of Digital Multirate Filters", Signal Proc. II: Theories and Applications, pp. 61-67, Elsevier Science Publishers, B. V. (North-Holland), 1983.

Affiliated with

Also associated with

Rating

Interpolator/decimator filter structure and a digital filter 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 Interpolator/decimator filter structure and a digital filter the, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Interpolator/decimator filter structure and a digital filter the will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-249280