Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction
Reexamination Certificate
2011-03-15
2011-03-15
Liu, Shuwang (Department: 2611)
Pulse or digital communications
Synchronizers
Phase displacement, slip or jitter correction
C375S373000, C375S376000, C375S355000
Reexamination Certificate
active
07907693
ABSTRACT:
A semiconductor device, a parallel interface system and methods thereof are provided. The example semiconductor device may include a reference clock transmitting block generating a reference clock signal, a plurality of first transceiver blocks, each of the plurality of first transceiver blocks transmitting at least one parallel data bit signal based on one of a plurality of phase-controlled transmitting sampling clock signals and a per-pin deskew block controlling a phase of a transmitting sampling clock signal to generate the phase-controlled sampling clock signals for the respective plurality of transceiver blocks, the per-pin deskew block controlling the phase of each phase-controlled transmitting sampling clock signal based on a phase skew between a given training data bit signal, among a plurality of training data bit signals, corresponding to a given first transceiver block and the reference clock signal in a first operation mode, and based on phase skew information relating to a phase skew between a given parallel data bit signal of the at least one parallel data bit signal and the reference clock signal in a second operation mode. An example method may include reducing skew based on a comparison between a plurality of transmitted training data bit signals and a corresponding plurality of received training data bit signals in a first mode of operation and reducing skew based on received phase skew information relating to a phase skew difference between a reference signal and a parallel data bit signal in a second mode of operation.
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Bae Seung-Jun
Cho Beom-Sig
Jang Seong-Jin
Harness & Dickey & Pierce P.L.C.
Lam Kenneth
Liu Shuwang
Samsung Electronics Co,. Ltd.
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