Computer graphics processing and selective visual display system – Display driving control circuitry – Display power source
Reexamination Certificate
2011-03-29
2011-03-29
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Display power source
C345S042000, C345S051000, C345S052000, C345S080000, C345S084000, C345S204000, C330S051000, C330S069000, C330S253000, C330S257000, C330S260000
Reexamination Certificate
active
07916133
ABSTRACT:
A buffer circuit is driven with a low voltage and operates at a high speed has first and second comparators constituted by P channel and N channel MOS transistors provided between an input terminal and an output terminal of a buffer amplifier. A predetermined offset voltage is set for the comparing operation, and a switch circuit turns ON/OFF in response to an output signal from the first comparator and the output signal of the second comparator. A leading up of an output voltage from the buffer amplifier is accelerated by the current flowing from a power source line to the output terminal. The buffer circuit also includes an operation restricting circuit for restricting the comparing operation of the second comparator in a range of a dead band of the transistors.
REFERENCES:
patent: 6897726 (2005-05-01), Tsuchi
patent: 7142055 (2006-11-01), Inokuchi
patent: 7362169 (2008-04-01), Liu et al.
patent: 2004/0075500 (2004-04-01), Inokuchi
patent: 2004-032603 (2004-01-01), None
patent: 2004-140487 (2004-05-01), None
English translation of International Search Report for PCT/JP2005/016307, mailed Dec. 20, 2005.
Lubit Ryan A
Mattingly & Malur, P.C.
Rohm & Co., Ltd.
Shalwala Bipin
LandOfFree
Buffer amplifier, driver IC and display apparatus using that... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Buffer amplifier, driver IC and display apparatus using that..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Buffer amplifier, driver IC and display apparatus using that... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2675449