Image processing system utilizing analog joystick
First Claim
1. An image processing system which comprises an image processor which generates image data of an image to be displayed on a monitor, and an analog joystick, comprising:
- a joystick lever which is inclined within an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator;
inclined amount data output circuitry which outputs inclined amount data according to an inclined amount of said lever; and
an image processor being operable to determine on the basis of said inclined amount data whether or not said lever exists within a dead area of said coordinate reference frame including the center;
said image processor being operable to perform a first correction operation to correct said inclined amount data to center data indicative of said center when it is determined that said lever exists within said dead area;
said image processor being operable to perform a second correction operation to correct said inclined amount data on the basis of an inclined amount equal to a distance from said center to said dead area when it determines that said lever exists outside said dead area; and
said image processor being operable to output image data on the basis of inclined amount data which is corrected by said first correction operation when said lever exists within said dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said dead area.
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Accused Products
Abstract
An image processing system includes an image processor (10) which generates image data of an image to be displayed on a monitor, and an analog joystick (45) which modifies the image data, the image processor generates the image data on the basis of joystick data from the analog joystick. An inclinable range of a lever (474) of the analog joystick is restricted by a guide ring (486), and an inclined amount of the lever is counted by counters (444X, 444Y). The joystick data is output by correcting counter data in a specific area (a central area and/or peripheral area) set at a portion of the inclinable range.
135 Citations
24 Claims
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1. An image processing system which comprises an image processor which generates image data of an image to be displayed on a monitor, and an analog joystick, comprising:
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a joystick lever which is inclined within an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator; inclined amount data output circuitry which outputs inclined amount data according to an inclined amount of said lever; and an image processor being operable to determine on the basis of said inclined amount data whether or not said lever exists within a dead area of said coordinate reference frame including the center; said image processor being operable to perform a first correction operation to correct said inclined amount data to center data indicative of said center when it is determined that said lever exists within said dead area; said image processor being operable to perform a second correction operation to correct said inclined amount data on the basis of an inclined amount equal to a distance from said center to said dead area when it determines that said lever exists outside said dead area; and said image processor being operable to output image data on the basis of inclined amount data which is corrected by said first correction operation when said lever exists within said dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said dead area. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An image processing system which comprises an image processor which generates image data of an image to be displayed on a monitor, and an analog joystick, comprising:
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a joystick lever which is inclined within an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator; inclined amount data output circuitry which outputs inclined amount data according to an inclined amount of said lever; and an image processor being operable to determine on the basis of said inclined amount data whether or not said lever exists within a dead area including the center of said coordinate reference frame; said image processor being operable to perform a first correction operation to correct said inclined amount data to center data indicative of said center when it determines that said lever exists within said dead area, and being operable to perform a second correction operation to correct said inclined amount data in accordance with a predetermined equation; said image processor being operable to output image data on the basis of inclined amount data which is corrected in accordance with said first correction operation when said lever exists within said dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said dead area. - View Dependent Claims (11, 12)
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13. An image processing system which comprises an image processor which generates image data of an image to be displayed on a monitor, and an analog joystick, comprising:
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a joystick lever which is inclined within an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator; a guide portion which is formed around said lever and defines a lever physically inclinable range having a predetermined shape when said lever is brought into contact with an inner periphery of said guide portion; inclined amount data output circuitry which outputs inclined amount data according to an inclined amount of said lever; and an image processor being operable to determine on the basis of said inclined amount data whether or not said lever exists within a first dead area including the center and to determine on the basis of said inclined amount data whether or not said lever exists within a second dead area which is in the vicinity of a maximum peripheral area of said inclinable range and has a predetermined shape; said image processor being operable to perform a first correction operation which corrects said inclined amount data outputted by said inclined data output circuitry when said image processor determines that said lever exists outside said first dead area and determines that said lever exists outside said second dead area; said image processor being operable to perform a second correction operation to correct said inclined amount data to predetermined inclined amount data when said image processor determines that said lever exists within said second dead area; said image processor being operable to output image data on the basis of inclined amount data which is corrected by said first correction operation when said lever exists outside both said first dead area and said second dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said first dead area and within said second dead area. - View Dependent Claims (14, 15, 16, 17)
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18. An image processing system which comprises an image processor which generates image data of an image to be displayed on a monitor, and an analog joystick, comprising:
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a joystick lever which is inclined within an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator; a guide having a guide portion which is formed around said lever and defines a physically inclinable range having a predetermined shape when said lever is brought into contact with an inner periphery of said guide portion; inclined amount data output circuitry which outputs inclined amount data according to an inclined amount of said lever; and an image processor being operable to determine on the basis of said inclined amount data whether or not said lever exists within a first dead area including the center; said image processor being operable to perform a first correction operation which corrects said inclined amount data to center data indicative of said center when said image processor determines that said lever exists within said first dead area; said image processor being further operable to determine on the basis of said inclined amount data whether or not said lever exists within a second dead area which is in the vicinity of a maximum peripheral area of said physically inclinable range and has a predetermined shape; said image processor being operable to perform a second correction operation which corrects said inclined amount data outputted by said inclined data output circuitry when said image processor determines that said lever exists outside said first dead area and determines that said lever exists outside said second dead area; said image processor being operable to perform a third correction operation which corrects said inclined amount data to predetermined inclined amount data when said image processor determines that said lever exists within said second dead area; said image processor being operable to output image data on the basis of inclined amount data which is corrected by said first correction operation when said lever exists within said first dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside both said first dead area and said second dead area, or on the basis of inclined amount data which is corrected by said third correction operation when said lever exists outside said first dead area and within said second dead area.
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19. For use in an image processing system which includes an image processor for generating image data of an image to be displayed on a monitor, and an analog joystick lever which has an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator, a method of operating said image processing system comprising the steps of:
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generating an inclined amount output data according to an inclined amount of said lever; determining by said image processor on the basis of said inclined amount data whether or not said lever exists within a dead area including the center; performing a first correction operation by said image processor to correct said inclined amount data to center data indicative of said center when it is determined that said lever exists within said dead area; performing a second correction operation by said image processor to correct said inclined amount data on the basis of an inclined amount equal to a distance from said center to said dead area when it determines that said lever exists outside said dead area; and outputting image data on the basis of inclined amount data which is corrected by said first correction operation when said lever exists within said dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said dead area. - View Dependent Claims (20, 21)
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22. For use in an image processing system which includes an image processor for generating image data of an image to be displayed on a monitor, and an analog joystick lever which has an inclinable range when said lever is operated by an operator and rests at a predetermined state indicative of a center of a coordinate reference frame if said lever is not operated by the operator, a method of operating said image processing system comprising the steps of:
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generating an inclined amount output data according to an inclined amount of said lever; determining on the basis of said inclined amount data whether or not said lever exists within a dead area including the center of said coordinate reference frame; performing a first correction operation to correct said inclined amount data to center data indicative of said center when said lever exists within said dead area; performing a second correction operation to correct said inclined amount data in accordance with a predetermined equation; and outputting image data on the basis of inclined amount data which is corrected in accordance with said first correction operation when said lever exists within said dead area, or on the basis of inclined amount data which is corrected by said second correction operation when said lever exists outside said dead area. - View Dependent Claims (23, 24)
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Specification