Digital video probe system

Details Digital video probe system Digital video probe system

1987-06-04

1989-03-21

Groody, James J.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

324 73R, H04N 1704

Patent

active

048148725

ABSTRACT:
A digital video probe system has a digital data probe for attachment to a data test point and a digital clock probe for attachment to a clock test point of a device under test. A clock signal from the clock test point is variably phase shifted by changing the duty cycle of the clock signal to produce a variable clock signal for processing digital data from the data test point. The processed digital data is converted to an analog video signal and displayed on an appropriate analog monitor. By varying horizontal and vertical sync inputs to the analog monitor the displayed signal may be moved about the display to assure that all of the processed digital data is displayed.

REFERENCES:
patent: 4408226 (1983-10-01), Dean et al.
patent: 4554663 (1985-11-01), Pham van Cang
patent: 4677620 (1987-06-01), Sutton et al.
patent: 4752825 (1988-06-01), Buckley et al.

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