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:
Dec. 24, 2002
Filed:
Aug. 24, 1999
Rohm Co., Ltd., Kyoto, JP;
Abstract
A data communication apparatus according to the present invention can be used both in one-wave mode and two-wave mode, and includes: first and second tuning circuits ( ); a power supply circuit ( ) connected to first tuning circuit ( ) for generating power by a signal received by first tuning circuit ( ); an information processing circuit ( ) connected to first tuning circuit ( ) or second tuning circuit ( ) through a switching circuit ( ) and including a detection circuit ( ), a decoder ( ), an encoder ( ) and the like. Information processing circuit ( ) includes a switch control circuit ( ) detecting if the mode of the received radio wave is one-wave mode or two-wave mode in accordance with an output from first tuning circuit ( ) and controlling switching circuit ( ) such that detection circuit ( ) is connected to one of first and second tuning circuits ( ).