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US 2006/0133557 A1Published application
Phase interpolator having a phase jump
AssigneeAgere Systems Inc.
InventorsRonald Freyman, Vladimir Sindalovsky, Lane Smith
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AssigneeAgere Systems Inc.
InventorsRonald Freyman, Vladimir Sindalovsky, Lane Smith
Estimating the term…
A method and apparatus are disclosed for generating phase controlled data, based on a roaming tap interpolator. The present invention recognizes that roaming tap interpolators have inherent nonlinearities and discontinuities at the boundaries of each interpolation region. A roaming tap interpolator is disclosed that shifts the interpolation curve in time in order to avoid the undesired artifacts in the interpolation curve. A roaming tap interpolator generally comprises a plurality of delay elements that delays a first signal to generate a plurality of interpolation regions each having an associated phase; a multiplexer to select one or more of the interpolation regions; and an interpolator to process the selected one or more of the interpolation regions to generate a second signal. In addition, according to the present invention, the roaming tap interpolator includes a delay unit that selectively delays one or more of the first signal and the second signal to generate an interpolation signal, the interpolation signal selectively having a first phase or a second phase.
A method for generating a phase controlled data, comprising the steps of:
A phase controlled data generator, comprising:
An integrated circuit, comprising:
Dependencies are inferred from the claim text.