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. 26, 2008
Filed:
Apr. 02, 2004
Takashi Iwamoto, Yokohama, JP;
Manabu Sakane, Yokohama, JP;
Takashi Iwamoto, Yokohama, JP;
Manabu Sakane, Yokohama, JP;
Victor Company of Japan, Limited, Yokohama, Kanagawa-ken, JP;
Abstract
There is disclosed an optical wireless transmission apparatus in which a pilot light emitting section of a receiving/emitting section sends a pilot light in a wavelength region of 930 nm to 960 nm to a target apparatus, and a light receiving device having a light receiving sensitivity only to the same wavelength region of 930 nm to 960 nm receives light sent from the target apparatus. When the pilot light in the wavelength region of 930 nm to 960 nm is used, the pilot light is not obstructed by sunlight, and therefore optical axis adjustment can be mutually and exactly performed by the use of the pilot light sent from the target apparatus.