Wireless remote control and zoom system for a video display apparatus
First Claim
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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Accused Products
Abstract
A zoom system for enlarging a portion of a video image chosen on a display screen by a cursor wherein the cursor is controlled by a remote position-dependent transmitter. An electrooptical arrangement receives positional signals from the remote transmitter causing the cursor to move on the display screen in relation to the movement of the remote transmitter. The cursor is used to select a portion of the displayed video image to be enlarged. Once chosen by the cursor, the selected portion of the video image is enlarged in a zoom circuit and shown on the display screen in place and stead of the original image.
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Citations
18 Claims
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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:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 17, 18)
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11. A zoom 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 signals having 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; electrooptical means responsive to said transmitted electromagnetic positional signals for controlling said video display apparatus by moving a cursor on said 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 intensity 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; 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; and a zoom means for enlarging a portion of said video signal on said screen, wherein said portion is selected by said cursor. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification