Standard signal generating apparatus

Details Standard signal generating apparatus Standard signal generating apparatus

1976-04-26

1978-08-29

Miller, Jr., Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

58 23R, 219121LM, 331109, H03K 1700, G04C 300, B23K 900

Patent

active

041106407

ABSTRACT:
The combination of a transparent substrate, and a plurality of standard signal generating circuits, for developing respective oscillatory output signals at a standard frequency. The plurality of signal generating circuits are disposed on a major surface of the substrate, and each includes at least one unbroken adjusting lead, which can be broken by irradiation with laser light, to set the frequency of the oscillatory output signal.

REFERENCES:
patent: 2903630 (1959-09-01), Cohen et al.
patent: 3683213 (1972-08-01), Staudte
patent: 3727151 (1973-04-01), Koehler
patent: 3766616 (1973-10-01), Staudte
patent: 3768157 (1973-10-01), Buie
patent: 3805509 (1974-04-01), Assmus et al.
patent: 3889459 (1975-06-01), Lu
patent: 3945194 (1976-03-01), Gollinger
patent: 3975898 (1976-08-01), Nishimura

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