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.

Date of Patent:
May. 21, 2019

Filed:

Apr. 26, 2017
Applicant:

Maxell, Ltd., Kyoto, JP;

Inventors:

Nobuo Masuoka, Ibaraki, JP;

Hiroshi Shimizu, Tokyo, JP;

Kazuhiko Yoshizawa, Ibaraki, JP;

Hideo Nishijima, Ibaraki, JP;

Assignee:

Maxell, Ltd., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03B 21/56 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G03B 21/56 (2013.01); G02B 27/0081 (2013.01);
Abstract

Since a display device is used in a relatively large room, it often displays images on a large screen. On the other hand, a display terminal often displays images on a small screen. Therefore, when the same image is displayed on the display device and the display terminal, the displayed image on the display terminal is so small that the viewer has difficulty in discerning details of the image, which poses a problem that the display terminal is disadvantageous. In a display system including a display terminal and a display device, the display device detects position coordinates optically pointed out by a pointer on a displayed image, and displays a given pointer mark at the detected position coordinates. The display terminal displays a magnified version of the displayed image approximately around received position coordinates serving as a center thereof, and displays a given pointer mark at the position coordinates.


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