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:
Mar. 03, 1987
Filed:
Jan. 09, 1984
Mark D Roos, San Carlos, CA (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
A method is provided to eliminate harmonic skip problems in a down-conversion system. The method makes use of the relationship between the frequency of the intermediate frequency signal and the harmonic number of the local oscillator signal with respect to the frequency of the frequency of the source signal. By monitoring and measuring corresponding changes in the intermediate frequency signal caused by predetermined changes in the frequency of the local oscillator signal, a determination of the proper local oscillator signal and the proper harmonic can be made using a processor. The proper frequency and harmonic can then be maintained by periodically checking the relationship between variables.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile