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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.:

US 8840252 B1

PDFFull Text
Expired
Date of Patent:
Sep. 23, 2014

Filed:

Jan. 30, 2012

Image display apparatus and portable information processing apparatus having the same

Applicants:

Takahisa Shiramizu, Saga, JP;

Kazutaka Yasuda, Kumamoto, JP;

Takayuki Ooie, Fukuoka, JP;

Inventors:

Takahisa Shiramizu, Saga, JP;

Kazutaka Yasuda, Kumamoto, JP;

Takayuki Ooie, Fukuoka, JP;

Assignee:

Panasonic Corporation, Osaka, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Georgia Y Epps

Assistant Examiner:

Magda Cruz

Int. Cl.
CPC ...
G03B 21/00 (2006.01); G03B 21/14 (2006.01); H04N 5/238 (2006.01); G06F 1/16 (2006.01); G02B 27/00 (2006.01); G02F 1/13 (2006.01); G02B 6/42 (2006.01); G03B 21/30 (2006.01); H04N 5/74 (2006.01); H04N 9/31 (2006.01); G03B 27/68 (2006.01); G03B 29/00 (2006.01); G03B 21/20 (2006.01);
U.S. Cl.
CPC ...
H04N 5/74 (2013.01); G03B 21/142 (2013.01); G06F 1/1632 (2013.01); G02B 27/0068 (2013.01); G02F 1/1323 (2013.01); G02B 6/422 (2013.01); G03B 21/30 (2013.01); G02B 27/0025 (2013.01); G03B 29/00 (2013.01); H04N 9/3185 (2013.01); G06F 1/1649 (2013.01); G03B 21/2033 (2013.01); H04N 5/7475 (2013.01); G03B 27/68 (2013.01);
Abstract

An image display apparatus improves usability for a user in the case where a screen image is projected on a ceiling as a screen. The image display apparatus includes: a projection unit capable of vertically changing a projection angle; a projection angle detector detecting the projection angle of the projection unit; and a screen image corrector reversing a projected screen image. The screen image corrector switches the projected screen image from a reversed display to a standard display when the projection angle detected by the projection angle detector is less than or equal to a predetermined value.

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Shiramizu, Takahisa. (2014). Image display apparatus and portable information processing apparatus having the same (U.S. Patent No. 8840252). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8840252

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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