Precision timing generator apparatus and associated methods
First Claim
1. A precision timing generator, comprising:
- a coarse timing generator that generates a coarse timing signal from a clock signal and a timing command input;
a fine timing generator, including;
a sinusoidal-signal generator that receives the clock signal and derives a sinusoidal signal from the clock signal; and
a phase shifter that receives the sinusoidal signal and the timing command input and shifts the phase of the sinusoidal signal based on the timing input to generate a phase shifted sinusoidal signal that has a desired phase shift; and
a combiner that provides a timing signal by combining the coarse timing signal and a fine timing signal derived from the phase shifted sinusoidal signal.
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Abstract
A precision timing generator includes a combiner that provides a timing signal by combining a coarse timing signal and a fine timing signal derived from a phase-shifted sinusoidal signal that has a desired phase shift. The coarse timing generator generates the coarse timing signal from a clock signal and a timing command input. The fine timing generator includes a sinusoidal-signal generator that receives the clock signal and generates a sinusoidal signal. The fine timing generator also includes a phase shifter that receives the sinusoidal signal and the timing command input and shifts the phase of the sinusoidal signal based on the timing input to generate the phase shifted sinusoidal signal.
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Citations
23 Claims
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1. A precision timing generator, comprising:
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a coarse timing generator that generates a coarse timing signal from a clock signal and a timing command input;
a fine timing generator, including;
a sinusoidal-signal generator that receives the clock signal and derives a sinusoidal signal from the clock signal; and
a phase shifter that receives the sinusoidal signal and the timing command input and shifts the phase of the sinusoidal signal based on the timing input to generate a phase shifted sinusoidal signal that has a desired phase shift; and
a combiner that provides a timing signal by combining the coarse timing signal and a fine timing signal derived from the phase shifted sinusoidal signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of generating a precision timing signal, comprising:
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generating a coarse timing signal from a clock signal and a timing command input;
deriving a sinusoidal signal from the clock signal;
shifting the phase of the sinusoidal signal based on the timing command input to generate a phase shifted sinusoidal signal that has a desired phase shift; and
combining the coarse timing signal and a fine timing signal derived from the phase shifted sinusoidal signal to provide the precision timing signal. - View Dependent Claims (19, 20, 21, 22, 23)
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Specification