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. 15, 1978
Filed:
Mar. 15, 1977
Filippo Neri, Rome, IT;
Alfredo Albrande, Rome, IT;
Abstract
A device for controlling the conical scanning frequency of conical scanning radar systems. An antenna illuminator is caused to revolve by means of a three-phase asynchronous rotary field motor. The angular frequency of conical scanning is changed in a random or pseudo-random manner by means of a reference generator associated with the asynchronous motor, a random or pseudo-random signal generator, and a circuit comparing the signal of the reference generator and the signal of the signal generator. The comparison circuit provides 'greater,' 'less' and 'equal' outputs. A switching device driven by those outputs couples a braking magnetic-field or the three-phase supply to the motor, depending upon whether a 'greater' or 'less' output, respectively is the present comparison circuit. The 'equal' output also controls the change of state for the random or pseudo-random signal generator.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile