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. 27, 1994
Filed:
Apr. 22, 1993
Applicant:
Inventor:
R Ian MacDonald, Edmonton, CA;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
25022712 ; 250205 ;
Abstract
An improved fiber optic delay line filter is disclosed having each fiber optic light path terminate on a corresponding photo detector adapted to convert the received optical signal to a commensurate electrical signal in bi-polar proportion to an electrical bias level provided to the photo detector where the bias level for each photo detector is independently settable and the outputs of all of the photodetectors are summed to produce an output electrical signal that is filtered by the arranged fiber optic delay line transversal filter.
MacDonald, R. (1994). Optoelectronic transversal filter with variable gain bi-polar taps (U.S. Patent No. 5376786). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5376786
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