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:
Apr. 27, 1976
Filed:
Jun. 17, 1974
Francis G Overbury, Cuffley, EN;
International Standard Electric Corporation, New York, NY (US);
Abstract
A Doppler Navigation ground beacon antenna commutating arrangement in which the primary scan program radio frequency and reference radio frequency signals are both applied to the antenna elements in mutually opposite commutation directions. The two signals are separated in frequency, as they are in the prior art fixed reference antenna arrangement; accordingly, a fixed reference antenna is no longer required. The novel system greatly reduces the effect of multipath reference signals, especially in situations where there is one or more inopportunely located reflecting object.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile