Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1992-08-10
1994-02-22
Cross, E. Rollins
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307350, 307355, H03F 100
Patent
active
052890490
ABSTRACT:
A signal input selecting circuit comprises a plurality of signal input terminals, a first switch device for selecting one of signal electrodes of the signal input terminals to be connected with a signal processing block, a second switch device for selecting one of reference electrodes of the signal input terminals to be connected with a reference potential point, a third switch device for connecting the second switch device with a current supplying portion, and a voltage detector for detecting a voltage corresponding to an impedance of the second switch device. When the voltage detected by the voltage detector has a level thereof less than a predetermined level under a condition in which the second switch device is in operation to connect the reference electrode of a selected one of the signal input terminals with the reference potential point and the third switch device is in operation to connect the second switch device with the current supplying portion, the third switch device is turned to disconnect the switch device from the current supplying portion and the first switch device is caused to connect the signal electrode of the selected one of the signal input terminals with the signal processing block.
REFERENCES:
patent: 3781912 (1973-12-01), McCollum, Jr.
patent: 3904977 (1975-09-01), Barsotti
patent: 4521810 (1985-06-01), Nigborowicz et al.
patent: 4766333 (1988-08-01), Mobley
patent: 4814642 (1989-03-01), Kleks
patent: 4891807 (1990-01-01), Hutch
patent: 5045804 (1991-09-01), Sugawara et al.
patent: 5113091 (1992-05-01), Hsu et al.
patent: 5202589 (1993-04-01), Huser
Fujishita Kaneaki
Kanai Takashi
Cross E. Rollins
Miller Jerry A.
Moulis Thomas
Musacchio Pasquale
Sony Corporation
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