The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 1985
Filed:
Aug. 23, 1982
Masao Kasuga, Sagamihara, JP;
Abstract
Input discrete samples x.sub.n are applied to an adder through a first set of feedforward paths which successively delay and multiply the samples by selected coefficient values and are also applied to an adder-subtractor through a second set of feedforward paths which successively delay and shift the input samples by selected values. Output discrete samples y.sub.n are supplied from the adder-subtractor to the adder through a first set of feedback paths by successively delaying and scaling the samples by selected values of coefficient and are also applied to the adder-subtractor through a second set of feedback paths by successively delaying and shifting the samples by selected values. The samples applied to the adder are combined into a first signal representing an integer part of the filter coefficient, while those applied to the adder-subtractor are combined into a second signal representing a fractional part of that coefficient, the first and second signals being combined in the adder-subtractor to provide the output samples y.sub.n. Bit shifting means is provided for shifting samples which appear in any location of the filter to provide the first signal.