Optically programmable controller

Details Optically programmable controller Optically programmable controller

1997-01-08

1998-12-15

Mullen, Jr., Thomas J.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

34082557, 348734, 359146, 36470505, H04B 1000

Patent

active

058503048

ABSTRACT:
A programmable controller includes a photodetector for receiving data as pulses light from a video display and infra-red emitting diodes for transmitting pulses of light in a format recognized by the device to be controlled. The light from the video display is produced by generating a series of vertically displaced, horizontal lines on the screen of the display. Each line corresponds to a pulse of light and to one bit of information and one or more bytes are displayed per frame on the display. The display produces two initial lines that define a timing window for receiving the remaining data and produces a terminal line that toggles for error detection. The controller produces pulses in the format required by the controlled device by executing a sub-set of primitives from a set stored in the controller. The primitives are executed in a sequence determined by the data from the video display.

REFERENCES:
patent: 4802114 (1989-01-01), Sogame
patent: 4866434 (1989-09-01), Keenan
patent: 5043723 (1991-08-01), Araki et al.
patent: 5535147 (1996-07-01), Jacobs et al.
patent: 5652602 (1997-07-01), Fishman et al.

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