Communications: electrical – Continuously variable indicating – With particular receiver
Patent
1992-02-24
1999-01-05
Mullen, Thomas
Communications: electrical
Continuously variable indicating
With particular receiver
381105, 381109, 381119, 338334, G08C 1900
Patent
active
058567925
ABSTRACT:
An interrupt apparatus for remotely controlling a potentiometer is comprised of an encoder for generating a pair of quadrature output signals whenever the encoder becomes rotated. The pair of signals are sent to a pair of D flip-flops for detecting a rising or falling edge of one of the signals. The pair of D flip-flops sends an interrupt signal to a microprocessor when the signals indicate that the encoder has been rotated. Either one of a pair of AND gates will output a high signal to set a third D flip-flop when motion is in the counter-clockwise direction. After being interrupted, the microprocessor reads the direction signal from the third flip-flop, resets the three flip-flops so that subsequent motion may be detected, updates the value of resistance stored in memory, and outputs the magnitude of the resistance in digital form. The digital signal is converted into an analog signal and received at a servo control circuit for causing the motorized potentiometer to become repositioned to the desired resistance.
REFERENCES:
patent: 4010423 (1977-03-01), Collins et al.
patent: 4129886 (1978-12-01), Shih
patent: 4349779 (1982-09-01), Ono
patent: 4550400 (1985-10-01), Henderson, Jr. et al.
patent: 4715051 (1987-12-01), Giardina
patent: 4879751 (1989-11-01), Franks et al.
patent: 4885792 (1989-12-01), Christensen et al.
patent: 4930041 (1990-05-01), Elderton et al.
patent: 4933575 (1990-06-01), Aso
patent: 5054077 (1991-10-01), Suzuki
patent: 5134576 (1992-07-01), Jackson et al.
patent: 5189705 (1993-02-01), Lavaud
patent: 5247680 (1993-09-01), Huber
patent: 5303371 (1994-04-01), Nakajima
patent: 5317558 (1994-05-01), Yagami et al.
Hill Andrew
Kananen Ronald P.
Mullen Thomas
Sony Corporation of America
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