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:
Nov. 22, 2005
Filed:
Apr. 22, 2002
Applicants:
Sadanori Shitara, Tokyo, JP;
Kiyoshi Wakui, Tokyo, JP;
Nobuaki Yokoyama, Tokyo, JP;
Inventors:
Assignee:
General Research of Electronics, Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04B001/06 ;
U.S. Cl.
CPC ...
Abstract
A frequency scanning receiver minimizes the time needed for setting the frequency of a phased lock loop of a first local oscillator. The frequency scanning receiver is configured so that when the reference frequency of the PLL of the first local oscillator has been set at a high frequency, and the frequency error is less than the second IF, the frequency error is controlled to be zero by the control circuit switching the frequency of a second local oscillator or third local oscillator to an appropriate frequency using an output of a frequency discriminator.