Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Rectangular or pulse waveform width control
Reexamination Certificate
2005-05-31
2005-05-31
Wells, Kenneth B. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Rectangular or pulse waveform width control
C327S163000, C375S376000
Reexamination Certificate
active
06900681
ABSTRACT:
An aspect of the present invention provides a phase interpolator for adjusting a phase of differential clock signals of a receiver to a phase of a data from a transmitter that includes, an integrator configured to slew edges of differential clock signals adjusted to the phase of the data from the transmitter, a output buffer configured to amplify an output of the integrator, a duty cycle correction circuit configured to feed duty correction signals back to the adjusted differential clock signals, and a controller configured to ensure operations of an amplitude of the output buffer and a data read circuit to adjust the swings and duties of the adjusted differential clock signals.
REFERENCES:
patent: 5572158 (1996-11-01), Lee et al.
patent: 6169434 (2001-01-01), Portmann
DLA Piper Rudnick Gray Cary US LLP
Kabushiki Kaisha Toshiba
Wells Kenneth B.
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