Projector, interactive system, and interactive control method

Patent metadata

Field	Value
Publication number	US-2016018905-A1
Application number	US-201514753447-A
Country	US
Kind code	A1
Filing date	Jun 29, 2015
Priority date	Jul 15, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

A projector comprising: an image acquiring unit acquiring projection images; an identification information acquiring unit acquiring identification information of a target device among source devices that provide the projections images; a projecting unit that generates a composite image collectively including the acquired projection images, and projects the composite image on a projection plane; a position coordinates detecting unit detecting position coordinates of a pointing object that operates on the plane; a detecting unit that detects a projection region of a projection image provided by the target device, by using the acquired identification information; a converting unit that, when the position coordinates of the pointing object is in the projection region of the projection image, converts the position coordinates of the pointing object to operating information on a coordinate system of the target device; and a transmitting unit that transmits the operating information to the target device.

First claim

What is claimed is:

1 . A projector comprising:
an image acquiring unit that acquires a plurality of projection images; an identification information acquiring unit that acquires identification information for identifying a control target device, which is a source device subjected to interactive control, among a plurality of source devices that provide the projections images; a projecting unit that generates a composite image, in which the acquired projection images are collected into a single image, and projects the composite image on a projection plane; a position coordinates detecting unit that detects position coordinates of a pointing object that operates on the projection plane; a detecting unit that detects a projection region of a projection image provided by the control target device in the composite image, by using the acquired identification information; a converting unit that, when the position coordinates of the pointing object detected by the position coordinates detecting unit is in the projection region of the projection image provided by the control target device detected by the detecting unit, converts the position coordinates of the pointing object to operating information on a coordinate system of the control target device; and a transmitting unit that transmits the operating information to the control target device.

2 . The projector according to claim 1 , wherein
the identification information acquiring unit acquires a physical address assigned to each of the source devices each being connected via a cable, and the detecting unit distinguishes the control target device by using the physical address.

3 . The projector according to claim 1 , further comprising:
a video graphics array (VGA) input terminal, wherein when the image acquiring unit acquires the projection image via the VGA input terminal while the identification information acquiring unit does not acquire the identification information, the detecting unit detects a projection region of the acquired projection image as the projection region of the projection image provided by the control target device.

4 . The projector according to claim 1 , wherein
the image acquiring unit acquires the projection image via a network, and the identification information acquiring unit acquires, as the identification information, one of a media access control (MAC) address of each of the source devices and address information assigned to each of the source devices, where the MAC address and the address information are acquired via the network.

5 . An interactive system comprising:
an image acquiring unit that acquires a plurality of projection images; an identification information acquiring unit that acquires identification information for identifying a control target device, which is a source device subjected to interactive control, among a plurality of source devices that provide the projections images; a projecting unit that generates a composite image, in which the acquired projection images are collected into a single image, and projects the composite image on a projection plane; a position coordinates detecting unit that detects position coordinates of a pointing object that operates on the projection plane; a detecting unit that detects a projection region of a projection image provided by the control target device in the composite image, by using the acquired identification information; a converting unit that, when the position coordinates of the pointing object detected by the position coordinates detecting unit is in the projection region of the projection image provided by the control target device detected by the detecting unit, converts the position coordinates of the pointing object to operating information on a coordinate system of the control target device; and a transmitting unit that transmits the operating information to the control target device.

6 . An interactive control method comprising
acquiring, by an image acquiring unit, a plurality of projection images; acquiring, by an identification information acquiring unit, identification information for identifying a control target device, which is a source device subjected to interactive control, among a plurality of source devices that provide the projections images; generating, by a projecting unit, a composite image, in which the acquired projection images are collected into a single image; projecting, by the projecting unit, the composite image on a projection plane; detecting, by a position coordinates detecting unit, position coordinates of a pointing object that operates on the projection plane; detecting, by a detecting unit, a projection region of a projection image provided by the control target device in the composite image, by using the acquired identification information; converting, by a converting unit and when the position coordinates of the pointing object detected at the detecting is in the projection region of the projection image provided by the control target device detected at the detecting, the position coordinates of the pointing object to operating information on a coordinate system of the control target device; and transmitting, by a transmitting unit, the operating information to the control target device.

Assignees

• Nagao Masafumi
• Ricoh Co Ltd

Inventors

• Nagao Masafumi

Classifications

• G06T11/60 Primary

  Creating or editing images; Combining images with text · CPC title

• G06F3/033 Primary

  Pointing devices displaced or positioned by the user {, e.g. mice, trackballs, pens or joysticks}; Accessories therefor (digitisers characterised by the transducing means G06F3/041) · CPC title

• H04N9/31

  Projection devices for colour picture display {, e.g. using electronic spatial light modulators [ESLM]} · CPC title

• G09G2370/20

  Details of the management of multiple sources of image data · CPC title

• G06F3/03545

  Pens or stylus · CPC title