Signal waveform display device

Details Signal waveform display device Signal waveform display device

1991-07-09

1992-03-10

Chin, Tommy P.

Facsimile and static presentation processing

Static presentation processing

Attribute control

358 31, H04N 964, H04N 978

Patent

active

050953532

ABSTRACT:
An input analog signal is converted into a corresponding digital signal. A predetermined time segment of the digital signal is selected. A memory stores the selected time segment of the digital signal. A line counter counts horizontal scanning lines of an output video signal. The selected time segment of the digital signal is read out from the memory in synchronism with a horizontal sync signal in a direction of a time axis. An output signal from the line counter and the readout time segment of the digital signal are compared, and a video signal is generated which represents a waveform of a time segment of the input analog signal which corresponds to the selected time segment of the digital signal in synchronism with a vertical sync signal. The video signal is fed to the display section of the television receiver, and the waveform is indicated by the display section of the television receiver.

REFERENCES:
patent: 4364080 (1982-12-01), Vidovic
patent: 4646151 (1987-02-01), Welles, II.
patent: 4772938 (1988-09-01), Sasson

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