Television – Monitoring – testing – or measuring – Monitor
Patent
1994-09-14
1996-06-11
Groody, James J.
Television
Monitoring, testing, or measuring
Monitor
348184, H04N 1700, H04N 1702
Patent
active
055260420
ABSTRACT:
An apparatus for displaying line and frame waveforms having different time-scales of a video signal on a display screen is described which comprises complex sweep signal generating means including a line sweep signal generating circuit 2, a frame sweep signal generating circuit 3 and a switching circuit 4, and horizontal axis drive circuit including a horizontal location arrangement circuit 5 and a horizontal axis drive circuit 6. The line and frame sweep signal generating circuits 2 and 3 generate line and frame sweep signals S.sub.2 and S.sub.3 synchronously with line and frame synchronization signals of the video signal, respectively, and the switching circuit 4 alternatively transfers the line and frame sweep signals S.sub.2 and S.sub.3, synchronously with the frame synchronization signal to generate a complex sweep signal S.sub.4.
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patent: 5172216 (1992-12-01), Suzuki et al.
patent: 5343298 (1994-08-01), Larson et al.
K. Okada, Oscilloscopes, Kyoritsu Publishing Co., Apr. 15, 1983, 4.7.1 (pp. 119-121).
Egami Haruhisa
Ozawa Kentaro
Burgess Glenton B.
Groody James J.
Leader Electronics Corp.
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