Dynamic information storage or retrieval – Binary pulse train information signal – Including sampling or a/d converting
Reexamination Certificate
2004-09-29
2008-12-23
Hindi, Nabil Z (Department: 2627)
Dynamic information storage or retrieval
Binary pulse train information signal
Including sampling or a/d converting
C369S124050
Reexamination Certificate
active
07468940
ABSTRACT:
An ITR (Interpolated Timing Recovery) data reproducing apparatus capable of acquiring an excellent reproduction output waveform with less distortion and updating sampling timing at high speed with a simple configuration is provided. Each sampling period (Ts) of a desired interpolation function f(t) is split into a plurality of periods, linear interpolation is performed for each of the split periods, and data at each interpolation point within each of the split periods is calculated. In addition, only a binary integer representation part is extracted as a quotient obtained by performing integer division of sampling timing for a sampling period, and only input sampling data (Ds) for a number of the binary integer representation part is captured into an interpolation filter to operate a pipeline. Only a binary fraction representation part is extracted as a remainder obtained by performing integer division of the sampling timing for the sampling period, and a tap coefficient of the interpolation filter is determined in accordance with the extracted value, which is used as sampling timing (μk).
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Hindi Nabil Z
Kananen Ronald P.
Rader & Fishman & Grauer, PLLC
Sony Corporation
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