Input apparatus, control apparatus, control system, and control method

Abstract

An input apparatus includes a sensor, a calculation section, and a transmission section. The sensor detects a movement of the input apparatus and outputs a detection signal corresponding to the movement of the input apparatus. The calculation section calculates a corresponding value that corresponds to a movement of an image displayed on a screen in a predetermined calculation cycle, the corresponding value corresponding to the detection signal. The transmission section transmits the corresponding value in a transmission cycle shorter than the calculation cycle.

The invention is claimed as follows: 
     
       1. An input apparatus, comprising:
 a sensor to detect a movement of the input apparatus and output a detection signal corresponding to the movement of the input apparatus; 
 a calculation means for calculating a corresponding value that corresponds to a movement of an image displayed on a screen in a predetermined calculation cycle, the corresponding value corresponding to the detection signal; and 
 a transmission section to transmit the corresponding value in a transmission cycle shorter than the calculation cycle 
 a sensor unit configured to detect movement of a hand of a user and output detection signals based on the movement of the hand of the user, wherein the detection signals includes a plurality of first detection signals and a plurality of second detection signals, and the plurality of the second detection signals are output just after the first detection signals; and 
 at least one processor configured to:
 receive the plurality of the first detection signals and the plurality of the second detection signals; 
 calculate, based on the plurality of the first detection signals, a first current value according to a predetermined calculation cycle, 
 calculate, based on the plurality of the second detection signals, a second current value according to the predetermined calculation cycle after calculating the first current value, 
 generate first movement information that is based on the calculated first current value and represents a first movement direction of the hand of the user, 
 generate second movement information that is based on the calculated second current value and represents a second movement direction of the hand of the user, 
 receive, according to a transmission cycle that is shorter than the predetermined calculation cycle, each of the first movement information and the second movement information that is based on the corresponding one of the calculated first current value and the calculated second current value; 
 control, while calculating the second current value based on the second detection signals according to the predetermined calculation cycle, a display device to sequentially plot a plurality of first images along the first movement direction according to the transmission cycle; and 
 
 control, just after displaying the plurality of the first images, the display device to sequentially plot a plurality of second images along the second movement direction according to the transmission cycle. 
 
     
     
       2. The input apparatus according to  claim 1 , further comprising:
 a memory to store the calculated corresponding current value; and 
 an update means for updating the corresponding current value stored in the memory every time the corresponding current value is calculated, 
 wherein the transmission section reads and transmits the corresponding current value stored in the memory in the transmission cycle. 
 
     
     
       3. The input apparatus according to  claim 1 , further comprising:
 a judgment means for judging whether the corresponding current value is equal to or smaller than a predetermined threshold value; and 
 a restriction means for restricting the transmission of the corresponding current value when the corresponding current value is equal to or smaller than the predetermined threshold value. 
 
     
     
       4. A control system, comprising:
 an input apparatus including 
 a sensor to detect a movement of the input apparatus and output a detection signal corresponding to the movement of the input apparatus, 
 a calculation means for calculating a corresponding value that corresponds to a movement of an image displayed on a screen in a predetermined calculation cycle, the corresponding value corresponding to the detection signal, and 
 a transmission section to transmit the corresponding value in a transmission cycle shorter than the calculation cycle; and 
 a control apparatus including 
 a reception section to receive the transmitted corresponding value, and 
 a display control means for controlling display of the screen so that the movement of the image is plotted in accordance with the corresponding value 
 a sensor unit configured to detect movement of the input apparatus and output detection signals based on the movement of the input apparatus, wherein the detection signals includes a plurality of first detection signals and a plurality of second detection signals, and the plurality of the second detection signals are output just after the first detection signals; and 
 at least one processor configured to:
 receive the plurality of the first detection signals and the plurality of the second detection signals; 
 calculate, based on the plurality of the first detection signals, a first current value according to a predetermined calculation cycle, 
 calculate, based on the plurality of the second detection signals, a second current value according to the predetermined calculation cycle after calculating the first current value, 
 generate first movement information that is based on the calculated first current value and represents a first movement direction of the input apparatus, 
 generate second movement information that is based on the calculated second current value and represents a second movement direction of the input apparatus, 
 receive, according to a transmission cycle that is shorter than the predetermined calculation cycle, each of the first movement information and the second movement information that is based on the corresponding one of the calculated first current value and the calculated second current value; 
 control, while calculating the second current value based on the second detection signals according to the predetermined calculation cycle, a display device to sequentially plot a plurality of first images along the first movement direction according to the transmission cycle; and 
 
 control, just after displaying the plurality of the first images, the display device to sequentially plot a plurality of second images along the second movement direction according to the transmission cycle. 
 
     
     
       5. A control method, comprising:
 detecting a movement of an input apparatus and outputting a detection signal corresponding to the movement of the input apparatus; 
 calculating a corresponding value that corresponds to a movement of an image displayed on a screen in a predetermined calculation cycle, the corresponding value corresponding to the detection signal; and 
 transmitting the corresponding value in a transmission cycle shorter than the calculation cycle 
 detecting movement of an input apparatus and outputting detection signals based on the movement of the input apparatus, wherein the detection signals includes a plurality of first detection signals and a plurality of second detection signals, and the plurality of the second detection signals are output just after the first detection signals; 
 receiving the plurality of the first detection signals and the plurality of the second detection signals; 
 calculating, based on the plurality of the first detection signals, a first current value according to a predetermined calculation cycle; 
 calculating, based on the plurality of the second detection signals, a second current value according to the predetermined calculation cycle after calculating the first current value; 
 generating first movement information that is based on the calculated first current value and represents a first movement direction of the hand of the user; 
 generating second movement information that is based on the calculated second current value and represents a second movement direction of the hand of the user; 
 receiving, according to a transmission cycle that is shorter than the predetermined calculation cycle, each of the first movement information and the second movement information that is based on the corresponding one of the calculated first current value and the calculated second current value; 
 controlling, while calculating the second current value based on the second detection signals according to the predetermined calculation cycle, a display device to sequentially plot a plurality of first images along the first movement direction according to the transmission cycle; and 
 controlling, just after displaying the plurality of the first images, the display device to sequentially plot a plurality of second images along the second movement direction according to the transmission cycle. 
 
     
     
       6. The control method according to claim 5, wherein the transmission cycle is equal or larger than a refresh timing of the display device. 
     
     
       7. The control method according to claim 5, wherein the coordinate values are calculated based on quadratic regression curve. 
     
     
       8. The control method according to claim 5, wherein the transmission cycle equals a refresh timing of the display device. 
     
     
       9. A display system comprising:
 a sensor unit configured to detect movement of a hand of a user and output detection signals based on the movement of the hand of the user, wherein the detection signals includes a plurality of first detection signals and a plurality of second detection signals, and the plurality of the second detection signals are output just after the first detection signals;   a display device including at least one of a projector, a liquid crystal display or an electro-luminescence display; and   at least one processor configured to:
 receive the plurality of the first detection signals and the plurality of the second detection signals; 
 calculate, based on the plurality of the first detection signals, a first current value according to a predetermined calculation cycle, 
 calculate, based on the plurality of the second detection signals, a second current value according to the predetermined calculation cycle after calculating the first current value, 
 generate first movement information that is based on the calculated first current value and represents a first movement direction of the hand of the user, 
 generate second movement information that is based on the calculated second current value and represents a second movement direction of the hand of the user, 
 receive, according to a transmission cycle that is shorter than the predetermined calculation cycle, each of the first movement information and the second movement information that is based on the corresponding one of the calculated first current value and the calculated second current value; 
 control, while calculating the second current value based on the second detection signals according to the predetermined calculation cycle, the display device to sequentially plot a plurality of first images along the first movement direction according to the transmission cycle; and 
 control, just after displaying the plurality of the first images, the display device to sequentially plot a plurality of second images along the second movement direction according to the transmission cycle. 
   
     
     
       10. The display system according to claim 9, wherein the processor is configured to generate coordinate values in accordance with the values corresponding to the detection signals. 
     
     
       11. The display system according to claim 10, wherein the transmission cycle is equal or larger than a refresh timing of the display device. 
     
     
       12. The display system according to claim 10, wherein the coordinate values are calculated based on a quadratic regression curve. 
     
     
       13. The display system according to claim 9, wherein the transmission cycle equals a refresh timing of the display device. 
     
     
       14. The display system according to claim 9, wherein the processor generates information in every transmission cycle.