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:
Jul. 01, 2014
Filed:
Jan. 24, 2008
Nao Saito, Hitachi, JP;
Setsuo Arita, Hitachiota, JP;
Satoru Ito, Hitachinaka, JP;
Kazunori Ayabe, Hitachinaka, JP;
Yukio Sagawa, Chigasaki, JP;
Nao Saito, Hitachi, JP;
Setsuo Arita, Hitachiota, JP;
Satoru Ito, Hitachinaka, JP;
Kazunori Ayabe, Hitachinaka, JP;
Yukio Sagawa, Chigasaki, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A communication system in trains comprises a control data communication deviceand an image data communication deviceinstalled in each of the cars. The control data communication devicetransmits train operation information, train location information, control instructions of train-mounted apparatuses, and the like. The image data communication devicetransmits image information such as moving images and still images, audio information such as in-train announcement, textual information for caption display, and operation log information of apparatuses, which form the contents, to a display unitinstalled in each of the cars and to apparatusessuch as a telephone. The display unitswitches the display on the screen in accordance with train control information transmitted from the control data communication devicethrough the image data communication device