Electronic digital logic circuitry – Interface – Current driving
Reexamination Certificate
2008-05-06
2008-05-06
Cho, James (Department: 2819)
Electronic digital logic circuitry
Interface
Current driving
C326S030000
Reexamination Certificate
active
10622498
ABSTRACT:
In a data transmission circuit according to the present invention, selection circuits alternately switch between transistors of a main buffer and transistors of a dummy buffer. In high-speed data transmission, a H/L transmission switch circuit outputs high-speed data to a constant current driver and outputs a selection signal for inputting a control signal to the main buffer to a selection circuit. In low-speed data transmission, on the other hand, the H/L transmission switch circuit outputs a selection signal for inputting a control signal to the main buffer in accordance with the low-speed data to the selection circuit. The H/L transmission switch circuit controls an input of the control signal to the main buffer in accordance with the selection signal.
REFERENCES:
patent: 6075384 (2000-06-01), Sim et al.
patent: 6275066 (2001-08-01), Park et al.
patent: 6525570 (2003-02-01), Yagishita et al.
patent: 6876225 (2005-04-01), Yagishita et al.
Korean Office Actions issued Jan. 27, 2005 (w/ English translation of relevant portions).
“A 660 MB/s Interface Megacell Portable Circuit in 0.3 μm-0.7 μm CMOS ASIC”, IEEE Journal of Solid-State Circuits, vol. 31, No. 12, Dec. 1996.
“Design Guide For A Low Speed Buffer For The Universal Serial Bus”, Revision 1.1 Dec. 1996 Intel Corporation.
Cho James
Dickstein , Shapiro, LLP.
Hammond Crystal L
NEC Electronics Corporation
LandOfFree
Data transmission circuit and data transmission method with... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Data transmission circuit and data transmission method with..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Data transmission circuit and data transmission method with... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3909412