US 2006/0077352 A1 · Image projection system and a method of controlling a projected pointer

Abstract

The present invention relates to an image projection system whereby a display position of a pointer on a projected image can be easily controlled from a location separated from the main control means. The system comprises a liquid crystal projector, a personal computer for controlling the liquid crystal projector to display a pointer on a projected image in accordance with an operation signal from a main operating section and a predetermined program, and a remote controller for the liquid crystal projector. The remote controller comprises a pointing device and a light emitting portion for wirelessly transmitting an operation signal. The liquid crystal projector comprises a light receiving portion for receiving wirelessly transmitted signals. The personal computer controls the liquid crystal projector to transfer the received signals to the personal computer and further controls the display position of the pointer according to the transferred pointing device operation signals.

Claims3

Dependent claims

A remote controller which transmits operation signals from menu keys and an operation signal from a pointing device to a projection section, the projection section projecting a predetermined menu image and being controlled to be adjustable based on the operation signals from the menu keys, the projection section being controlled to select a desired adjustment item from a plurality of operation items on an adjustment menu displayed on a display screen based on the operation signal from the pointing device, the remote controller comprising:

an operation section which includes the pointing device and operation keys that receive operation of an operator;
a signal processing section which converts the operator's operation of the pointing device and operation keys into operation signals;
and
a transmission section which transmits the operation signals to the projection section,
the operation keys including the menu keys which instruct display of an adjustment menu on the display screen.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/287,222Filed 28 Nov 2005

Priority

JP 7-1080157 Apr 1995

Published

13 Apr 2006

Term ends

Not estimatedThe source records don’t support an estimate.

Classification24 codes

G06F 3/033
Arrangements for converting the position or the displacement of a member into a coded form: pointing devices displaced or positioned by the user ,…
G03B 21/26
Details: projecting separately subsidiary matter simultaneously with main image
G06F 1/3203
Means for saving power: power management, i.e. event-based initiation of a power-saving mode
G06F 1/3228
Monitoring of events, devices or parameters that trigger a change in power modality: monitoring task completion, e.g. by use of idle timers, stop…

Family

Application08/573,520Division · filed 15 Dec 1995

Application09/084,399Continuation · filed 27 May 1998

Application09/084,399Division · filed 27 May 1998

Application09/548,346Continuation · filed 12 Apr 2000

Application10/315,012Continuation · filed 10 Dec 2002

Application11/076,986Continuation · filed 11 Mar 2005

Application11/287,222Continuation · filed 28 Nov 2005

US 2003/0081182 A1Published application

US 2005/0151932 A1Published application

US 5,782,548 ARelated patent

US 6,186,630 B1Related patent