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:
Aug. 11, 1987
Filed:
Feb. 19, 1986
Kazuo Kameya, Tsurugashima, JP;
Elmec Corporation, Saitama-Ken, JP;
Abstract
This finely variable delay line includes a first variable delay line element the delay time provided by which can be relatively coarsely varied, and a second variable delay line element the delay time provided by which can be relatively finely varied, connected in series with the first variable delay line. A reflection circuit is constituted between an element included in the second variable delay line and another element of the construction, the reflection circuit reflecting back a signal towards the element of the second variable delay line. Although some slight mismatching is in fact present, such mismatching is quite negligible in practice, and this variable delay line can be very finely adjusted by steps of as little as 0.5% of its total range or less.