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:
Sep. 02, 2014
Filed:
Jul. 03, 2008
Satoshi Shinada, Tokyo, JP;
Tetsuya Kawanishi, Tokyo, JP;
Shinya Nakajima, Tokyo, JP;
Abstract
An object of the present invention is to provide a radio-on-fiber unit and a radio-on-fiber system which can transmit/receive signals at adequate rates especially, to/from a mobile device. A first aspect of the present invention relates to a radio-on-fiber unit () which includes an antenna array () and a light modulator array (). The light modulator array () comprises antenna elements () and light modulators () that are connected with the respective antenna elements via electric circuits. The optical waveguide () is composed of linear optical waveguides () that are arranged along the light modulators () included in certain lines among the light modulators (). The light modulator array () comprises reflection units () for connecting two adjacent linear optical waveguides with each other. Consequently, a signal light inputted to a light input unit () is outputted from a light output unit () via each linear optical waveguide ().