Data strobe signals (DQS) for high speed dynamic random...

Details Data strobe signals (DQS) for high speed dynamic random... Data strobe signals (DQS) for high speed dynamic random...

2005-06-21

2005-06-21

Nguyen, Linh My (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

C327S276000

Reexamination Certificate

active

06909315

ABSTRACT:
Embodiments are provided in which a method for delaying a strobe signal for a first pre-specified amount of time is described. A test signal is sent through a first number of delay books and a test is done as to whether it takes the test signal approximately a second pre-specified amount of time to pass the first number of delay books. Then, the number of delay books is increased or decreased by one at a time and until the number of delay books reaches a second number where it takes the test signal approximately the second pre-specified amount of time to pass the second number of delay books. From the second number, a third number of delay books is determined which is needed to cause a propagation delay approximately equal to the first pre-specified amount of time. Finally, the strobe signal is passed through the third number of delay books.

REFERENCES:
patent: 6467043 (2002-10-01), LaBerge
patent: 6529993 (2003-03-01), Rogers et al.

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