Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2008-03-25
2008-03-25
Ahn, Sam K. (Department: 2611)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
Reexamination Certificate
active
10919665
ABSTRACT:
An apparatus and a method for improving production yield of phase locked loops (PLLs) have been disclosed. One embodiment of the apparatus includes a PLL comprising a charge pump and an offset compensation circuit coupled to the charge pump to provide an offset current to the charge pump to reduce a static phase error of the PLL caused by a mismatch in at least one of a process variation, a voltage, and a temperature. Other embodiments are described and claimed.
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Chew Chwei-Po
Scott Paul H.
Ahn Sam K.
Blakely , Sokoloff, Taylor & Zafman LLP
Cypress Semiconductor Corporation
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