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. 24, 2012
Filed:
Jan. 21, 2005
Hatsuo Shimizu, Hachioji, JP;
Takemitsu Honda, Hino, JP;
Masayuki Hashimoto, Hachioji, JP;
Kazutaka Nakatsuchi, Hino, JP;
Hatsuo Shimizu, Hachioji, JP;
Takemitsu Honda, Hino, JP;
Masayuki Hashimoto, Hachioji, JP;
Kazutaka Nakatsuchi, Hino, JP;
Olympus Corporation, Tokyo, JP;
Abstract
A transmitting and receiving apparatus () that transmits a radio signal to a capsule endoscope includes: a transmitting level determining unit () disposed near a transmitting resonance circuit (); a frequency controller () that controls an oscillation frequency based on a result of determination executed by the transmitting level determining unit (); and a frequency variable oscillator () that changes the oscillation frequency, based on the control of the frequency controller (). By changing the oscillation frequency so that a transmission level becomes large, the oscillation frequency can be changed so as to decrease a frequency difference between the oscillation frequency and the resonance frequency of the resonance circuit () that changes along a variation in a self inductance value of a coil ().