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Display device, display system, and data supply method for display device

A technology of a display device and a display surface, which is applied in the field of identifying operations for the display surface

Active Publication Date: 2017-06-13
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, although USB (Universal Serial Bus: Universal Serial Bus) is often used for the connection between devices, in order to recognize the indication positions of multiple pointing devices on the host device, it is necessary to connect the devices through multiple ports and cables. between, or need to install a dedicated device driver

Method used

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  • Display device, display system, and data supply method for display device
  • Display device, display system, and data supply method for display device
  • Display device, display system, and data supply method for display device

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Embodiment Construction

[0032] One of the characteristics of the present invention is that, in a display system capable of executing a process corresponding to the instruction by the user instructing the display surface with a pointer, it is possible to recognize and accept instructions from a plurality of pointers. The display system of the present invention is characterized in that it includes a plurality of pointers, a display device that displays images and detects positions pointed by the pointers, and a host device that executes processing corresponding to pointers from the pointers. In this configuration, the USB standard Connect the host device and the display device, and connect the host device and the display device with a single USB cable.

[0033] In addition, in the present invention, a plurality of pointers can be used by one user. However, below, for convenience of description, it is assumed that one user uses one pointing body, and two users point to the display surface. In other wor...

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Abstract

A display device can make it possible to easily recognize a plurality of indication bodies as a plurality of pointing devices. The display device is provided with a function device having a first interface and a second interface, and stores configuration information assigning the same class to the first interface and the second interface in a storage section. The display device detects a first position indicated by a first indication body to a display surface and a second position indicated by a second indication body to the display surface, assigns first coordinate data representing the first position to the first interface, assigns second coordinate data representing the second position to the second interface, and supplies a host device with the first coordinate data and the second coordinate data.

Description

technical field [0001] The present invention relates to techniques for recognizing operations directed to a display surface. Background technique [0002] Conventionally, when a specific position of an image displayed on a display device such as a projector is designated by a pointing device, a device is known that detects the pointed position and displays a pointer or the like in a manner corresponding to the detected position (for example, Refer to Patent Document 1). By drawing the trajectory of the detected position using the device described in Patent Document 1, handwritten characters, graphics, and the like can be displayed. [0003] Patent Document 1: Japanese Patent No. 4272904 [0004] However, although USB (Universal Serial Bus: Universal Serial Bus) is often used for the connection between devices, in order to recognize the indication positions of multiple pointing devices on the host device, it is necessary to connect the devices through multiple ports and cab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/042
CPCG06F3/0416G06F3/033G09G5/00G09G5/12G09G2370/20
Inventor 市枝博行
Owner SEIKO EPSON CORP