Page turning effect generating apparatus
First Claim
1. A page turning effect generating apparatus for video signals comprising:
- memory means for storing an image of an incoming video signal;
output switch means connected to an output of said memory means and to a next image of said incoming video signal for switching between the next image of the incoming video signal and the output video signal from said memory means in accordance with a switching control signal; and
control signal generating means including means for generating said switching control signal and means for generating a read address supplied to said memory means, wherein said means for generating a read address includes means for nonlinearly converting a first vector that represents one vector component of a vector expressing a scanning point of a display image from an origin of modification, and means for generating a final vector by synthesizing said nonlinearly converted first vector and a second vector that represents another vector component of said vector expressing a scanning point of the image from the origin of modification, said first and second vectors being perpendicular to each other and said final vector indicating said read address supplied to said memory means.
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Abstract
A page turning effect generating apparatus for video signals is provided with a memory for storing a video signal, an output switch for switching incoming video signal and a memory output video signal in accordance with a switching control signal, and a control signal generator including a circuit for generating the switching control signal and a circuit for generating a read address to be supplied to the memory, wherein the read address generating circuit includes a convertor for non-linearly converting a first vector which represents one of the vector components of a vector expressing a scanning point of a display image from an origin of a modification, and a generator for generating a final vector by synthesizing the non-linearly converted first vector and a second vector which represents another of the vector components of the vector, the final vector indicating the read address to be supplied to the memory.
32 Citations
4 Claims
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1. A page turning effect generating apparatus for video signals comprising:
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memory means for storing an image of an incoming video signal; output switch means connected to an output of said memory means and to a next image of said incoming video signal for switching between the next image of the incoming video signal and the output video signal from said memory means in accordance with a switching control signal; and control signal generating means including means for generating said switching control signal and means for generating a read address supplied to said memory means, wherein said means for generating a read address includes means for nonlinearly converting a first vector that represents one vector component of a vector expressing a scanning point of a display image from an origin of modification, and means for generating a final vector by synthesizing said nonlinearly converted first vector and a second vector that represents another vector component of said vector expressing a scanning point of the image from the origin of modification, said first and second vectors being perpendicular to each other and said final vector indicating said read address supplied to said memory means. - View Dependent Claims (2, 3, 4)
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Specification