Wireless remote control system for a television receiver
First Claim
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1. A system for remotely controlling a video display apparatus having a screen for displaying at least one video signal, said system comprising:
- transmitter means for transmitting a plurality of electromagnetic positional signals having radiation intensities indicative of the motion of said transmitter means, and for transmitting an electromagnetic command signal containing at least one coded command, wherein an unsteady motion of said transmitter means creates a high frequency component in each one of said plurality of positional signals; and
electrooptical means responsive to said transmitted electromagnetic positional signals for controlling said video apparatus by moving a cursor on the screen in response to the motion of said transmitter means, said electrooptical means including;
receiving means for receiving said command signal and said plurality of positional signals;
digitizing means, responsive to said receiving means, for digitizing said command signal and each one of said positional signals, the digital value of each one of said digitized positional signals being indicative of the radiation intensities of said correspondign one positional signal;
adaptive filter means, responsive to said digitizing means, for filtering out said high frequency component from each one of said digitized positional signals;
resolving means, responsive to said adaptive filter means, for resolving said plurality of filtered digitized positional signals into coordinate values indicative of the position fo the cursor on the screen; and
menu controller means for processing said command signal and, in accordance with said coordinate values determined by said resolving means, for displaying the position of the cursor on the screen and for controlling said video display apparatus.
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Abstract
A system for remotely controlling a television receiver has a position-dependant transmitter and an electrooptical arrangement which controls the motion of a cursor on a television screen. The electrooptical arrangement also generates menu entries to facilitate the selection of functions for tuning and operating the television receiver. The menu entries are selected by means of the cursor. The electrooptical arrangement includes adaptive filters which stabilize the position of the cursor on the screen and thereby allow for an increased number of control functions to be implemented.
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Citations
16 Claims
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1. A system for remotely controlling a video display apparatus having a screen for displaying at least one video signal, said system comprising:
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transmitter means for transmitting a plurality of electromagnetic positional signals having radiation intensities indicative of the motion of said transmitter means, and for transmitting an electromagnetic command signal containing at least one coded command, wherein an unsteady motion of said transmitter means creates a high frequency component in each one of said plurality of positional signals; and electrooptical means responsive to said transmitted electromagnetic positional signals for controlling said video apparatus by moving a cursor on the screen in response to the motion of said transmitter means, said electrooptical means including; receiving means for receiving said command signal and said plurality of positional signals; digitizing means, responsive to said receiving means, for digitizing said command signal and each one of said positional signals, the digital value of each one of said digitized positional signals being indicative of the radiation intensities of said correspondign one positional signal; adaptive filter means, responsive to said digitizing means, for filtering out said high frequency component from each one of said digitized positional signals; resolving means, responsive to said adaptive filter means, for resolving said plurality of filtered digitized positional signals into coordinate values indicative of the position fo the cursor on the screen; and menu controller means for processing said command signal and, in accordance with said coordinate values determined by said resolving means, for displaying the position of the cursor on the screen and for controlling said video display apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An electrooptical apparatus, responsive to the motion of a transmitter, for controlling a cursor on the screen of a television receiver, the transmitter transmitting a plurality of positional signals having intensities which are indicative of the motion of the transmitter, wherein an unsteady motion of said transmitter creates a high frequency component in each one of the positional signals;
- said apparatus comprising;
receiving means for receiving said command signal and said plurality of positional signals; digitizing means, responsive to said receiving means, for digitizing said command signal and each one of said positional signals, the digital value of each one of said digitized positional signals being indicative of the radiation intensities of said corresponding one positional signal; adaptive filter means, responsive to said digitizing means, for filtering out said high frequency component from each one of said digitized positional signals; resolving means, responsive to said adaptive filter means, for resolving said plurality of filtered digitized positional signals into coordinate values indicative of the position of the cursor on the screen; and menu controller means for displaying the position of the cursor on the screen in accordance with said coordinate values determined by said resolving means.
- said apparatus comprising;
Specification