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:
Jan. 25, 1977
Filed:
Feb. 11, 1976
Gunter Hofgen, Kornwestheim, DT;
International Standard Electric Corporation, New York, NY (US);
Abstract
A facility for monitoring in the near field, the carrier-frequency and sideband signals radiated by a DVOR ground station is provided. In a first embodiment the monitor antenna is located outside the circle in the near field, and a controllable phase shifter compensates for the phase shifts caused by the different path lengths between the radiators of the circular array and the monitor antenna. In a second embodiment, the central radiator is used as the monitor antenna. The sideband signals received by this monitor antenna are modulated in a controllable phase shifter whose control is synchronized with the switching sequence of the commutator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile