Point type remote control apparatus and the method thereof

Details Point type remote control apparatus and the method thereof Point type remote control apparatus and the method thereof

1994-12-22

1997-02-11

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345156, G09G 500

Patent

active

056025688

ABSTRACT:
A point type remote control apparatus and method thereof, which can directly move a point to a desired position on a display screen, and thereby select quickly from a menu and provide convenience in use. The present invention comprises a signal transmitter for transmitting a specified pulse signal towards the desired point on the display screen, and a receiver/controller having a plurality of signal receiving sensors positioned around the display screen. The receiver/controller calculates a positional coordinate of a point of the transmitter by converting the intensity differences of the pulse signals received by the signal receiving sensors into phase differences, and displays the point corresponding to the positional coordinate on the display screen. In addition, the present invention comprises a receiver/controller for counting real phase differences of each pulse signal received by the signal receiving sensors. And thereby calculating a positional coordinate of the point by analyzing synthetically count values of the real phase differences and those of the phase-converted phase differences. The signal receiving sensors are positioned at two or four corners of the display screen, so that the point is controlled to move along a straight line or on a plane within the display screen.

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patent: 4988981 (1991-01-01), Zimmermann et al.
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patent: 5144594 (1992-09-01), Gilchrist
patent: 5245336 (1993-09-01), Chen et al.
patent: 5428192 (1995-06-01), Chen et al.

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