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:
Oct. 26, 2010
Filed:
Aug. 23, 2005
Yoichi Miyagawa, Kanagawa, JP;
Mamoru Suzuki, Kanagawa, JP;
Kazuyoshi Enomoto, Tokyo, JP;
Yuko Yoshida, Tokyo, JP;
Yoichi Miyagawa, Kanagawa, JP;
Mamoru Suzuki, Kanagawa, JP;
Kazuyoshi Enomoto, Tokyo, JP;
Yuko Yoshida, Tokyo, JP;
FeliCa Networks, Inc., Tokyo, JP;
Abstract
The present invention relates to a semiconductor integrated circuit and a wireless communication apparatus that can be reduced in size without deteriorating a receiving sensitivity and a transmission efficiency. Communication with an external reader/writer and an external non-contact IC card is carried out through a common antenna. The signal received from the external reader/writer or the external non-contact IC card through the antenna is supplied to an ASK demodulation circuitand demodulated. The signal received from the external reader/writer is full-wave rectified and smoothed by an full-wave rectification and smoothing circuit composed of diodesand a capacitor, and the power obtained from the full-wave rectified and smoothed signal is supplied to respective units of a semiconductor integrated circuit. The present invention can be applied to a mobile phone.