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:
Aug. 06, 2013
Filed:
Jan. 07, 2011
Shin Todo, Tokyo, JP;
Motomu Ueta, Kanagawa, JP;
Jun Onuki, Kanagawa, JP;
Masaki Nishikawa, Kanagawa, JP;
Masafumi Kurashige, Kanagawa, JP;
Junichi Ogikubo, Kanagawa, JP;
Shin Todo, Tokyo, JP;
Motomu Ueta, Kanagawa, JP;
Jun Onuki, Kanagawa, JP;
Masaki Nishikawa, Kanagawa, JP;
Masafumi Kurashige, Kanagawa, JP;
Junichi Ogikubo, Kanagawa, JP;
Sony Corporation, Tokyo, JP;
Abstract
A communication device includes a transmission amplifier supplied with a binary transmission signal is capable of choosing between amplifying the transmission signal and entering a high-impedance state at an output. An antenna is supplied with a transmission signal output from the transmission amplifier. A comparator compares a signal received by the antenna with threshold values to obtain a reception signal, which is supplied to a processing unit. A capacitor is connected between the transmission amplifier and the antenna or between the antenna and the comparator. A control unit allows the transmission amplifier to be in the high-impedance state for a period during which the processing unit receives a reception signal.