Title:
ANALOG CLOCK MODULE
Document Type and Number:
WIPO Patent Application WO2000028340
Kind Code:
A9
Abstract:
An analog clock apparatus is disclosed including a digital clock source for producing a digital waveform of a predetermined frequency and a direct-digital-synthesizer. The synthesizer has an input to receive the digital waveform and is operative to generate a resultant analog waveform. Prediction logic is coupled to the digital clock source and the synthesizer for determining the relative phase relationships between the digital waveform and the analog waveform. The prediction logic is responsive to a prediction clock having a clock frequency approximating that of said digital clock source.
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Inventors:
GAGE ROBERT B
Application Number:
PCT/US1999/022901
Publication Date:
October 26, 2000
Filing Date:
October 01, 1999
Export Citation:
Assignee:
TERADYNE INC (US)
International Classes:
G01R31/28; G01R31/30; G01R31/3167; G01R31/319; H03L7/18; (IPC1-7): G01R31/3167; G01R31/30
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