Event stacker and display device

Details Event stacker and display device Event stacker and display device

1976-04-05

1977-04-12

Yusko, Donald J.

Communications: electrical

Digital comparator systems

340190, 340225, 340347DA, 340409, G08B 2900, H03K 1304

Patent

active

040178366

ABSTRACT:
An event stacker and display device for encoding a multiplicity of event nals into a single output source. The system uses an operational amplifier having three inputs weighted in a "four, two, one" octal fashion. The output of the amplifier is therefore restricted to one of eight possible levels. An optical isolator is also used in the system in conjunction with a Darlington amplifier and a light emitting diode (LED) display device. The optical isolator provides isolation between test equipment and other instrumentation. The Darlington amplifier provides sufficient current to drive the LED display device and the event stacker.

REFERENCES:
patent: 3566400 (1971-02-01), Gilbert
patent: 3581303 (1971-05-01), Kelly
patent: 3646552 (1972-02-01), Fuhr
patent: 3854089 (1974-12-01), Emler
patent: 3924229 (1975-12-01), Liu

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