Logic circuit

Details Logic circuit Logic circuit

2005-11-29

2005-11-29

Tran, Anh Q. (Department: 2819)

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

C326S112000, C326S119000

Reexamination Certificate

active

06970017

ABSTRACT:
There is provided a logic circuit causing the same delay time as a conventional logic circuit and acting as a D flip-flop circuit with a data-selecting function.A logic circuit having the circuitry shown in FIG.6will be described briefly. Two transmission gates TG10a(TG10b) and TG11and two inverters IV10and IV11are used to define a data propagation path from an input port I1(I2) to an output port O1. Thus, four logic gates are located along the path in the same manner as they are in a conventional D flip-flop circuit. The transmission gate TG10a(TG10b) is controlled using a NOR circuit12athat inputs a clock CLK and a select signal /sel that is the reverse of a select signal sel (NOR circuit12bthat inputs the clock CLK and the select signal sel). The transmission gate TG11is controlled with the clock CLK. Either of two input data items is selected based on the select signals, and then output.When a D flip-flop circuit with a data-selecting function that causes the same delay time as a conventional D flip-flop circuit is adapted to a pipeline circuit, the action of the pipeline circuit can be speeded up.

REFERENCES:
patent: 5280203 (1994-01-01), Hung et al.
patent: 5440245 (1995-08-01), Galbraith et al.
patent: 5465055 (1995-11-01), Ahrens
patent: 5572151 (1996-11-01), Hanawa et al.
patent: 5719878 (1998-02-01), Yu et al.
patent: 5955912 (1999-09-01), Ko
patent: 6124736 (2000-09-01), Yamashita et al.
patent: 6-45879 (1994-02-01), None
patent: 7-231246 (1995-08-01), None

Affiliated with

Also associated with

Rating

Logic circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3497933