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:
Jul. 16, 1991
Filed:
Oct. 23, 1989
Applicant:
Inventor:
Robert L Miller, Bowie, MD (US);
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N / ; H04N / ;
U.S. Cl.
CPC ...
358141 ; 358133 ; 358 12 ;
Abstract
A high definition television acoustic charge transport filter bank significantly lowers the amount of digital processing needed in a high definition television. The filter bank effects frequency shifting by undersampling input waveforms to create aliasing, and by sampling output waveforms to shift received signals up in frequency. The filter bank is highly accurate and inexpensive because of the simple acoustic charge transport filter structure, high charge transport efficiency, linear phase and sample data operation.