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. 02, 2002
Filed:
Oct. 27, 1998
Satoshi Tonosaki, Tokyo, JP;
Yasuyuki Yamazaki, Matsudo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A signal processing apparatus is provided with processing units capable of reducing the number of signal processing means and the number of adjustments of a delay time between reversal and non-reversal of video-signal polarity in each of two signal paths in an arrangement in which two liquid-crystal displays (LCDs) are provided in a head-mounted display worn by an observer and each of the two displays is used to display video information viewed by the observer. The signal processing apparatus includes first and second signal sources ( and each of which generates a video signal, reversing unit for reversing the polarity of one of the two video signals, first selector selectively supplying one of the video signals to the reversing unit, first and second display units ( and for converting the video signals to respective ones of optical signals, and second selector for selectively supplying a video signal whose polarity is or is not reversed by the reversing unit to the first and second display units.