Display system, display device, and program
First Claim
1. A display system comprising:
- a display device with a display surface; and
an input device that is able to communicate with the display device, wherein;
the input device comprises;
a track detection unit that detects a track of points of contact between the input device operated by a user and the display surface;
a writing unit that writes track data indicating the track detected by the track detection unit in a memory; and
a sending unit that retrieves the track data from the memory and sends the track data to the display device; and
the display device comprises;
a position detection unit that detects positions on the display surface contacted by the input device and generates drawing data representing a line formed by points on the detected positions;
an operation mode change unit that changes an operation mode of the display device from a position detection mode for causing the position detection unit to detect the positions to a position non-detection mode for not causing the position detection unit to detect the positions or vice versa;
an instruction unit that, when the display device is in the position non-detection mode, instructs the input device to detect the track;
a request unit that, when the operation mode of the display device is changed from the position non-detection mode to the position detection mode, requests the input device for the track data;
a synthesizing unit that synthesizes the track data sent from the sending unit of the input device in response to the request from the request unit and drawing data generated by the position detection unit after the operation mode of the display device is changed to the position detection mode, to generate image data; and
a display unit that displays an image represented by the image data generated by the synthesizing unit, on the display surface.
1 Assignment
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Accused Products
Abstract
A display system having an input device that communicates with a display device. The input device being able to: detect a track of points of contact between the input device and the display surface; write the track data to a memory; and send the track data to the display device. The display device being able to: detect positions on the display surface contacted by the input device and generate a line formed by the detected positions; toggle between a position detection mode to a position non-detection mode; instruct the input device to detect the track it is in the position non-detection mode; request the track data from the input device when it toggles to the position detection mode; synthesize the track data from the input device and the drawing data to generate image data; and display the generated image data.
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Citations
8 Claims
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1. A display system comprising:
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a display device with a display surface; and an input device that is able to communicate with the display device, wherein; the input device comprises; a track detection unit that detects a track of points of contact between the input device operated by a user and the display surface; a writing unit that writes track data indicating the track detected by the track detection unit in a memory; and a sending unit that retrieves the track data from the memory and sends the track data to the display device; and the display device comprises; a position detection unit that detects positions on the display surface contacted by the input device and generates drawing data representing a line formed by points on the detected positions; an operation mode change unit that changes an operation mode of the display device from a position detection mode for causing the position detection unit to detect the positions to a position non-detection mode for not causing the position detection unit to detect the positions or vice versa; an instruction unit that, when the display device is in the position non-detection mode, instructs the input device to detect the track; a request unit that, when the operation mode of the display device is changed from the position non-detection mode to the position detection mode, requests the input device for the track data; a synthesizing unit that synthesizes the track data sent from the sending unit of the input device in response to the request from the request unit and drawing data generated by the position detection unit after the operation mode of the display device is changed to the position detection mode, to generate image data; and a display unit that displays an image represented by the image data generated by the synthesizing unit, on the display surface. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A display device comprising:
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a display surface; a communication unit that communicates with an input device; a position detection unit that detects positions on the display surface contacted by the input device and generates drawing data representing a line formed by points on the detected positions; an operation mode change unit that changes an operation mode of the display device from a position detection mode for causing the position detection unit to detect the positions to a position non-detection mode for not causing the position detection unit to detect the positions, or vice versa; an instruction unit that, when the display device is in the position non-detection mode, instructs the input device to detect a track of points of contact between the input device operated by a user and the display surface, using the communication unit; a request unit that, when the operation mode of the display device is changed from the position non-detection mode to the position detection mode, requests the input device for track data indicating the track detected by the input device, using the communication unit; a synthesizing unit that synthesizes the track data sent from the input device in response to the request from the request unit and drawing data generated by the position detection unit after the operation mode of the display device is changed to the position detection mode, to generate image data; and a display unit that displays an image represented by the image data generated by the synthesizing unit, on the display surface.
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8. A computer readable medium recording a program for causing a computer including:
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a display surface; and a communication unit, to execute; when the computer is in a position non-detection mode in which positions on the display surface contacted by an input device are not detected, instructing the input device to detect a track of points of contact between the input device operated by a user and the display surface, using the communication unit; when an operation mode of the computer is changed from the position non-detection mode to a position detection mode in which positions on the display surface contacted by the input device are detected, requesting the input device for track data indicating the track detected by the input device; after the operation mode of the display device is changed to the position detection mode, detecting positions on the display surface contacted by the input device and generating drawing data representing a line formed by points on the detected positions; synthesizing the track data sent from the input device in response to the request from the computer and the drawing data, to generate image data; and displaying an image represented by the image data on the display surface.
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Specification