Semiconductor device including duty cycle correction circuit

Details Semiconductor device including duty cycle correction circuit Semiconductor device including duty cycle correction circuit

2007-11-06

2007-11-06

Le, Thong Q. (Department: 2827)

Static information storage and retrieval

Addressing

Sync/clocking

C365S149000, C365S206000

Reexamination Certificate

active

10758539

ABSTRACT:
A duty cycle correction (DCC) circuit receives first and second clock signals and outputs a duty cycle adjusted clock signal, and a control circuit detects a process variation and controls respective slew rates of the first and second clock signals based on the detected process variation. The DCC circuit may include a first inverter having an input that receives the first clock signal, a second inverter having an input that receives the second clock signal, a third inverter having an input commonly connected to outputs of the first and second inverters, a first variable capacitor connected between the input of the first inverter and a ground voltage, and a second variable capacitor connected between the input of the first inverter and the ground voltage. In this case, the respective capacitance values of the first and second variable capacitors are set by the control circuit.

REFERENCES:
patent: 5614855 (1997-03-01), Lee et al.
patent: 5845862 (1998-12-01), Cipriani
patent: 6320438 (2001-11-01), Arcus
patent: 6342800 (2002-01-01), Stark et al.
patent: 6570944 (2003-05-01), Best et al.
patent: 6643790 (2003-11-01), Yu et al.
patent: 2004/0075462 (2004-04-01), Kizer et al.
patent: 1020000043233 (2000-07-01), None
patent: PCT WO 01/71915 (2001-09-01), None

Affiliated with

Also associated with

Rating

Semiconductor device including duty cycle correction 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 Semiconductor device including duty cycle correction circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor device including duty cycle correction circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3829477