Display device and portable electronic device

Computer graphics processing and selective visual display system – Plural display systems

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Reexamination Certificate

active

07573438

ABSTRACT:
A display device includes first and second displays, first and second display control circuits which respectively control the displays, and a signal transmission path which is shared between the first and second displays and has one system of signal lines. The display device further includes a switching circuit for the signal transmission path and a switching control circuit for the switching circuit. The switching control circuit performs switching control of the switching circuit in synchronism with display control by the first and second display control circuits. The first display and first display control circuit, and the second display and second display control circuit are alternately connected by the signal transmission path.

REFERENCES:
patent: 5841431 (1998-11-01), Simmers
patent: 5881299 (1999-03-01), Nomura et al.
patent: 6018787 (2000-01-01), Ip
patent: 6442645 (2002-08-01), Freker
patent: 6522309 (2003-02-01), Weber
patent: 7058426 (2006-06-01), Masuda et al.
patent: 7365704 (2008-04-01), Wang et al.
patent: 2002/0118144 (2002-08-01), Edmonds
patent: 2003/0092467 (2003-05-01), Masuda et al.
patent: 2004/0263425 (2004-12-01), Anzai et al.
patent: 2005/0253773 (2005-11-01), Sekiguchi
patent: 2-253394 (1990-10-01), None
patent: 2000-56733 (2000-02-01), None
patent: 2004-134827 (2004-04-01), None
Communication and Search Report from the European Patent Office, Sep. 1, 2006 (3 pages).
Communication issued by the European Patent Office on Feb. 16, 2007, for European Patent Application No. 04 022 288.7.
Notification of Reasons for Rejection mailed Aug. 21, 2007 from the Japanese Patent Office for Japanese Patent Application No. 2004-232514.
Communication issued by the European Patent Office on Apr. 15, 2008, for European Patent Application No. 04 022 288.7.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Display device and portable electronic device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device and portable electronic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device and portable electronic device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-4101488

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.