Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1976-04-02
1977-04-19
Miller, Jr., Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307270, 307241, H03K 1774
Patent
active
040190692
ABSTRACT:
The signal path between the input and output of a baseband video switch has a control point to which a signal representative of a switch control signal and a switchable constant current source are coupled. A pair of diodes and a switchable, high impedance buffer are disposed in series between the input terminal and the control point. A diode and a switchable driver are connected in series between the control point and the output terminal. A biasing arrangement responsive to the control signal biases the control point, and the current source. When the control signal is of one level, the diode junctions disposed in the path of the video signal are reverse-biased and the current source is off. When the control signal is of the other level, the diode junctions are forward-biased and the constant current source is on. A resistor load coupled between the input terminal and the control point provides a load for the signal when the switch is off.
REFERENCES:
patent: 3230397 (1966-01-01), Linder
patent: 3373298 (1968-03-01), Tompkins et al.
patent: 3479527 (1969-11-01), Michon
patent: 3922570 (1975-11-01), Equchi et al.
Champion Gordon
Zambuto Domenic A.
Davis B. P.
GTE Laboratories Incorporated
Hart Leslie J.
Kriegsman Irving M.
Miller, Jr. Stanley D.
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