Projector and method of controlling projector

• US 9,310,938 B2
• Filed: 04/22/2015
• Issued: 04/12/2016
• Est. Priority Date: 12/27/2011
• Status: Active Grant

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: Ichieda, Hiroyuki
• Primary Examiner(s): Hicks, Charles
• Application Number:
  US14/692,857
• Publication Number:
  US 20150227262A1
• Time in Patent Office: 356 Days
• US Class Current: 1/1
• CPC Class Codes: G03B 21/14 Details
• CPC Class Codes: G06F 3/0425 using a single imaging device like a video camera for tracking the absolute position of a single or a plurality of objects with respect to an imaged reference surface, e.g. video camera imaging a display or a projection screen, a table or a wall surface, on which a computer generated image is displayed or projected tracking a projected light spot to determine a position on a display surface G06F3/0386

Abstract

A projector controls a function in accordance with an operation of indicating a position if the operation is performed in a state in which an image is displayed. The projector projects an image on a screen based on a supply image supplied by an image source. The projector detects a position indicated on the screen using a position detector, and switches the projector between a first interactive mode and a second interactive mode based on the detected position, wherein when the first interactive mode is selected, an output switching section outputs the position information to a processing section of the projector, and when the second interactive mode is selected, the output switching section outputs the position information to an external device connected with the projector.

Claims

1. A projector comprising:

a projection section adapted to project a display image on a projection surface;

a position detector adapted to detect a position indicated on the projection surface and generate position information based on the detected position;

an operating image display section adapted to superimpose an operating image on a part of the display image, the operating image including a button to switch an operation mode between a first interactive mode and a second interactive mode;

an output switching section adapted to switch, based on the operation mode, an output destination of the position information generated by the position detector and output the position information to the output destination; and

a processing section adapted to perform a process based on the position information input from the output switching section,

wherein;

when the first interactive mode is selected, the output switching section outputs the position information to the processing section, and

when the second interactive mode is selected, the output switching section outputs the position information to an external device connected with the projector.

2. The projector according to claim 1,

wherein, when the first interactive mode is selected, the processing section draws a figure on the display image along a trajectory of the indication position detected by the position detector.

3. The projector according to claim 1, further comprising:

an operation detector adapted to detect an operation of an indication body,

wherein;

the position detector detects the indication position indicated on the projection surface by the indication body, and

in the case the operation of the indication body is detected by the operation detector when the indication position detected by the position detector is located within the button, the operation mode is switched.

4. The projector according to claim 3,

wherein, when the first interactive mode is selected, the processing section draws a figure on the display image along a trajectory of the indication position detected by the position detector while the operation of the indication body is detected by the operation detector.

5. The projector according to claim 1, wherein

the position detector detects the indication position indicated on the projection surface by an indication body, and an operation of the indication body, and

in the case the operation of the indication body is detected by the position detector when the indication position detected by the position detector is located within the button, the operation mode is switched.

6. The projector according to claim 5,

wherein, when the first interactive mode is selected, the processing section draws a figure on the display image along a trajectory of the indication position detected by the position detector while the operation of the indication body is detected by the position detector.

7. A projector according to claim 1, wherein

the projection section projects a display image input from an external image source connected with the projector,

the output switching section outputs the position information to the external image source when the second interactive mode is selected.

8. A method of controlling a projector comprising:

projecting a display image on a projection surface;

detecting a position indicated on the projection surface;

generating position information based on the detected position;

superimposing an operating image on a part of the display image, the operating image including a button to switch an operation mode between a first interactive mode and a second interactive mode;

controlling an output switching section to switch, based on the operation mode, an output destination of the position information generated by the position detector and output the position information to the output destination; and

controlling a processing section to perform a process based on the position information input from the output switching section,

wherein;

when the first interactive mode is selected, the output switching section outputs the position information to the processing section, and

when the second interactive mode is selected, the output switching section outputs the position information to an external device connected with the projector.