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Wireless remote control and zoom system for a video display apparatus

  • US 5,302,968 A
  • Filed: 03/12/1992
  • Issued: 04/12/1994
  • Est. Priority Date: 08/22/1989
  • Status: Expired due to Fees
First Claim
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1. In a remotely controlled video display apparatus having a screen for displaying at least one video signal, a zoom system for enlarging a selected portion of said video signal on said screen, comprising:

  • a remote transmitter means for transmitting positional signals with intensities indicative of said transmitter, wherein an unsteady motion of said transmitter creates a high frequency component in each of said positional signals;

    an electrooptical control means, responsive to said positional signals, for controlling the position of a cursor on said screen in response to the motion of said transmitter means, whereby said cursor is used to determine said selected portion of said video signal on said screen to be enlarged, said control means receiving said digitizing said positional signals, filtering said high frequency component from each of said positional signals, resolving said positional signals into coordinate values indicative of the position of said cursor on said screen and displaying said cursor on said screen; and

    a zoom means for enlarging said selected portion of said video signal chosen by an operator on said screen by said cursor, said zoom means including a picture interpolation means for interpolating a video frame from said selected portion of said video signal.

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