Projector and method of controlling projector

• US 9,041,695 B2
• Filed: 12/07/2012
• Issued: 05/26/2015
• 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 V
• Application Number:
  US13/708,022
• Publication Number:
  US 20130162607A1
• Time in Patent Office: 900 Days
• Field of Search: 345/204
• US Class Current: 345/204
• 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 can control 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 detection unit, and if the indication position detected is located within the operation area set previously, the projector controls the projection configuration of the image using a control section.

Claims

1. A projector adapted to project a display image on a projection surface, comprising:

a position detector adapted to detect a position indicated on the projection surface;

a display controller adapted to draw a figure on the display image along a trajectory of an indication position detected by the position detector;

an operating image display section adapted to superimpose an operating image on a part of the display image; and

a projection controller adapted to control a projection configuration of the display image in the case the indication position is located within an operation area where the operating image is superimposed,

wherein, while the display controller draws the figure, the display controller continues drawing the figure and the projection controller doesn'"'"'t control the projection configuration even if the indication position is located within the operation area.

2. 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 operation area, the projection controller controls the projection configuration of the display image.

3. 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 operation area, the projection controller controls the projection configuration of the display image.

4. The projector according to claim 1, wherein

the operating image display section superimposes the operating image, which is adapted to instruct at least one of processes of expansion, contraction, translation, and rotation of the display image, and

the projection controller performs a process corresponding to the operating image overlapping the indication position detected by the position detector to change the projection configuration of the display image.

6. The projector according to claim 2,

wherein, the display controller draws the figure on the display image while the operation of the indication body is detected by the operation detector.

7. The projector according to claim 3,

wherein, the display controller draws the figure on the display image while the operation of the indication body is detected by the position detector.

5. A method of controlling a projector adapted to project a display image on a projection surface, the method comprising:

detecting a position indicated on the projection surface;

causing a display controller to draw a figure on the display image along a trajectory of the position detected on the projection surface;

superimposing an operating image on a part of the display image; and

controlling a projection configuration of the display image in the case the indication position is located within an operation area where the operating image is superimposed,

wherein, while the figure is being drawn, the projection configuration isn'"'"'t controlled and the figure continues to be drawn even if the indication position is located within the operation area.