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:
Feb. 17, 2015
Filed:
Mar. 16, 2012
Shoji Otaka, Kanagawa-ken, JP;
Takafumi Yamaji, Kanagawa-ken, JP;
Tsutomu Sugawara, Tokyo, JP;
Yasuhiko Tanabe, Tokyo, JP;
Masahiro Hosoya, Tokyo, JP;
Hiroki Sakurai, Tokyo, JP;
Shoji Otaka, Kanagawa-ken, JP;
Takafumi Yamaji, Kanagawa-ken, JP;
Tsutomu Sugawara, Tokyo, JP;
Yasuhiko Tanabe, Tokyo, JP;
Masahiro Hosoya, Tokyo, JP;
Hiroki Sakurai, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A radio apparatus includes an antenna; an amplifier that amplifies a radio signal, received via the antenna; a first mixer that frequency converts the amplified radio signal to generate a first analog signal; a first A/D converter that converts the first analog signal to generate a first digital signal; a second mixer that frequency converts the amplified signal to generate a second analog signal; a second A/D converter means that converts the second analog signal to generate a second digital signal; a demodulator means that demodulates the first and second digital signals to generate a demodulated signal; a detector that detects a preamble from the first digital signal; and a control means that halts the second mixer and second A/D converter during the wait for the radio signal and that activates the second mixer and second A/D converter when the detector detects the preamble.