Incremental controller for graphical displays
AssigneeMercer Scientific International Corporation
InventorsGraham L. Gross, Arthur W. Gillman
Life of this patent
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Abstract
An incremental controller for generating a supplemental positioning signal for use in a display system which includes a graphical positioning device is disclosed. The controller includes an input device, for inputting desired supplemental positioning information. A code generator generates a supplemental positioning signal in response to the supplemental positioning information. A switch is connected to receive the positioning signal and the supplemental positioning signal. The switch outputs either the positioning or supplemental positioning signals in response to receiving a control signal. A controller is connected to the switch for generating the control signal.
Claims17
An incremental controller for moving a graphic to a desired location in response to an input action or signal, for use in a display system which includes a graphical positioning modality for positioning a graphic on a display monitor in said display system, wherein the positioning modality generates a positioning signal to move the graphic by a variable amount, the variable amount being responsive to an input action, and wherein said display system displays said graphic on said monitor utilizing display increments, said incremental controller comprising:
- a two-state input device, for inputting incremental positioning information necessary to modify the position of said graphic provided by said graphical positioning modality by a desired number of said display increments to place said graphic in a desired location anywhere on said monitor, said incremental positioning information to move the graphic by a predefined amount;
- a code generator, connected to receive said incremental positioning information from said input device, for generating an incremental positioning signal in response to said incremental positioning information;
- and
- a controller, connected to receive said positioning signal and said incremental positioning signal, for outputting either of said positioning or incremental positioning signals, whereby said incremental controller is operative to move said graphic to a precise location, relative to said display increments, on said monitor.
An incremental controller for moving a graphic to a desired pixel location in response to an input action or signal, for use in a pixel based display system which includes a graphical positioning modality for positioning a graphic on said display system, wherein the positioning modality generates a positioning signal to move the graphic by a variable amount, the variable amount being responsive to an input action, said incremental controller comprising:
- two-state input means for inputting supplemental positioning information necessary to modify the position of said graphic provided by said graphical positioning modality to place said graphic in a desired pixel location, said supplemental positioning information to move the graphic by a predefined amount;
- code generation means, connected to receive said supplemental positioning information from said input device, for generating a supplemental positioning signal in response to said supplemental positioning information;
- switch means, connected to receive said positioning signal and said supplemental positioning signal, for outputting either of said positioning or supplemental positioning signals in response to a control signal;
- and
- control means, connected to said switch, for generating said control signal.
A cursor positioning apparatus, comprising:
- a switching device having a first input, a second input, and an output, the first input receives coded positioning information to increment a cursor position by a variable amount;
- a user input device that receives a user selection to increment the cursor position by a predefined amount;
- and
- a code generator having an input and an output, the input of the code generator in communication with the user input device, the output of the code generator in communication with the second input of switching device, the code generator upon receiving a selection from the user input device generates coded positioning information to increment the cursor position by a predefined amount.
Dependencies are inferred from the claim text.