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:
Jul. 13, 2004
Filed:
Feb. 20, 2001
Applicant:
Inventor:
Ting-Yuan Cheng, Hsinchu, TW;
Assignee:
Industrial Technology Research Institute, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03B 1/10 ;
U.S. Cl.
CPC ...
H03B 1/10 ;
Abstract
The present invention pertains to a frequency-lock filtering receiver and the method for the same. The receiver enters a tuning mode before receiving signals. A frequency synthesizer then generates the radio frequency (RF) to be received and adjusts the central frequency of a tunable filter through feedback control so as to lock in the RF to be received. Afterwards, the receiver enters a receiving mode to receive RF signals using an antenna and uses the central frequency of the tunable filter locked in the tuning mode to filter the RF signals and to receive signals.