Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2007-01-30
2007-01-30
Callahan, Timothy P. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C327S175000
Reexamination Certificate
active
10879835
ABSTRACT:
Provided is directed to a circuit of controlling a pulse width and a method of controlling the same, which can remove failure possible to be generated during operations of a DRAM or a DDR in a high frequency by guaranteeing read and write operations of a stabilized data and a precharging time of a local input/output line, in response to identically adjust widths of a pulse synchronized with a clock and a target pulse, by means of comprising: a pulse comparator for comparing a target pulse with a pulse synchronized with a clock; a counter pulse generation circuit for generating a counter pulse according to an output of the comparator; a pulse counter circuit for outputting a plurality of pulse counter signals, sequentially, according to the counter pulse; and a pulse delay circuit for controlling the pulse width synchronized with the clock according to the plurality of pulse counter signals.
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Hynix / Semiconductor Inc.
Marshall & Gerstein & Borun LLP
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