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:
Dec. 07, 1993
Filed:
May. 20, 1992
Applicant:
Inventors:
Jonathan M Soloff, Basingstoke, GB;
Jonathan J Stone, Reading, GB;
Terence R Hurley, Newbury, GB;
James H Wilkinson, Tadley, GB;
Assignee:
Sony United Kingdom Limited, Staines, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J / ; H04N / ;
U.S. Cl.
CPC ...
370123 ; 370 691 ; 370 70 ; 358133 ; 358138 ;
Abstract
A sub-band filter system in which the frequency separated data is multiplexed together at the output of each filter stage. The stream of multiplexed data produced can have a block-by-block format or a sample-by-sample format. In the latter case, the filtering can be effected by a finite impulse response filter with switchable tap coefficients for effecting both decimation and high and low pass filtering.