Boots – shoes – and leggings
Patent
1980-12-17
1983-08-16
Chin, Gary
Boots, shoes, and leggings
364521, 340722, 324121R, H01J 2970
Patent
active
043995128
ABSTRACT:
A waveform searching system for a sampling oscilloscope, in which the instantaneous level of a high-speed sawtooth signal generated by a trigger signal synchronized with an input analog signal and the instantaneous level of a properly attenuated or amplified X-axis sweep wave are compared with each other to generate a pulse in a case of coincidence therebetween, thereby to generate sampling pulses sequentially delayed after the trigger signal by a constant time; the input analog signal is sampled by the sampling pulses to produce sampled pulses; and the sampled pulses are displayed by the X-axis sweep signal on a CRT. In accordance with the present invention, there are provided detecting means for detecting a predetermined condition where a waveform formed by respective peak values of the sampled pulses cross in a predetermined direction at a predetermined search level by a predetermined number; and control means for sequentially changing a time base range until the detecting means detects the predetermined condition, whereby the sampled pulses having the predetermined condition are automatically displayed on the CRT.
REFERENCES:
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patent: 4000439 (1976-12-01), McCutcheon et al.
patent: 4039784 (1977-08-01), Quarton et al.
patent: 4072851 (1978-02-01), Rose
patent: 4104725 (1978-08-01), Rose et al.
patent: 4142146 (1979-02-01), Schumann et al.
patent: 4257043 (1981-03-01), Tsuchiko
Kohno Yoshihiko
Soma Masafumi
Adams Bruce L.
Burns Robert E.
Chin Gary
Iwasaki Tsushinki Kabushiki Kaisha
Lobato Emmanuel J.
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