Method and apparatus for detecting aliasing

Details Method and apparatus for detecting aliasing Method and apparatus for detecting aliasing

1992-11-12

1996-12-17

Hjerpe, Richard

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345117, G09G 536

Patent

active

055858198

ABSTRACT:
In a method and apparatus for detecting occurrence of aliasing in a digital oscilloscope and displaying an alarm on a display unit, when an input signal is applied to a trigger generator circuit, the trigger generator circuit generates a trigger pulse. An aliasing detection counter counts the number of the trigger pulses generated in the period of time between scan clock pulses generated from a timebase circuit and applies an aliasing detection signal to a CPU. The CPU displays on the display unit the message indicating occurrence of aliasing.

REFERENCES:
patent: 4763067 (1988-08-01), Fladstol
patent: 5028914 (1991-07-01), Povenmire
patent: 5119018 (1992-06-01), Katayama et al.

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