Relay based control system

Details Relay based control system Relay based control system

1997-09-11

2000-02-01

Peng, John K.

Television

Studio equipment

348705, 348150, 348153, 348213, H04N 530, H04N 718

Patent

active

060209356

ABSTRACT:
The relay apparatus comprises the matrix switch 61 and the CPU 62 to which control data are supplied from input devices. The CPU 62 detects whether it is possible to change the state of the specified electronic device according to the control data and controls transmission of the control data to the specified electronic device according to the result of the detection. The control data comprises change control data and reference control data for requesting the state of the selected electronic device to be changed and to be referred, respectively. In other words, the CPU 62 controls the matrix switch 61 so that both the change control data and the reference control data are transmitted to the selected electronic device when it is detected to be possible to change the state of the specified electronic device with control data and only the reference control data is transmitted to the specified electronic device when it is detected to be impossible to change the state of the selected electronic device.

REFERENCES:
patent: 5036395 (1991-07-01), Reimers
patent: 5206732 (1993-04-01), Hudson
patent: 5264929 (1993-11-01), Yamaguchi
patent: 5265004 (1993-11-01), Schultz et al.
patent: 5786850 (1998-07-01), Pritchett et al.
patent: 5822012 (1998-10-01), Jeon et al.

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