Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1991-04-12
1992-10-27
LaRoche, Eugene R.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307465, 307452, H03K 1900
Patent
active
051592096
ABSTRACT:
A circuit to selectively process dip switches onto bus lines in a computer or device utilizing digital logic circuits wherein the dip switches are operably connected to a changeable source of digital signals so that upon command at desired times, the output of the dip switches connected to the bus lines may be reversed. Such a circuit consists of connecting the dip switches on one side to the bus lines and the other side through a current limiting resistor to the output of a logic circuit such as a NAND gate or other circuit which constantly outputs a digital signal. The input then to this logic circuit may be changed as desired to reverse the logic circuit output and thus the output of the dip switches. If desired, in place of the NAND gate output, the current limiting resistor may be grounded or connected to digital "1" in which case a constant digital signal is outputted to the bus lines upon dip switch closure.
REFERENCES:
patent: 4504927 (1985-03-01), Callan
patent: 4630198 (1986-12-01), I-Yuan
patent: 4725836 (1988-02-01), Guidos
patent: 4749825 (1988-06-01), Stewart
patent: 4757215 (1988-07-01), Seo
patent: 4906870 (1988-07-01), Gongwer
Artisoft, Inc.
LaRoche Eugene R.
McClanahan J. Michael
Ratliff R. A.
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