JPH11142973A - Image projection system - Google Patents

Abstract

(57) [Problem] To provide an image projection system that does not require an assistant and is not obstructed by obstacles, and can remotely control a display location as desired by a presenter. SOLUTION: A user 1 near a screen 13
When the user operates the transmission / reception terminal 15 to specify a desired page, the transmission / reception terminal transmits the instruction to the IC card type wireless communication device 16 by a radio signal using electromagnetic waves. I
The C-card wireless communication device transmits this instruction to the PC 11, and the PC 11 operates the data projector 12 to display a desired image on the screen. In this case, the transmitting / receiving terminal instructs with a radio signal using an electromagnetic wave, so that it is not easily disturbed by an obstacle. In addition, the IC card type wireless communication device 16
Feeds back the processing content of the PC 11 to the transmitting / receiving terminal 15 and displays the content on the display surface of the transmitting / receiving terminal 15, so that the user can clearly understand the progress of the instruction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a screen, an image projection device arranged at a position separated from the screen for projecting an image on the screen, and controlling the image projection device in accordance with a given instruction. The present invention relates to an image projection system having an information processing device that projects a predetermined image.

[0002]

2. Description of the Related Art Conventionally, in a conference or the like in which a plurality of people participate, an image projection system for projecting display contents on a large screen so that all the participants can view the conference in order to smoothly proceed with the conference. Is used. In such an image projection system, a data projector is used as a typical example of a projection device. Image projection system 100 using conventional data projector
As shown in FIG. 10, a presenter 1 near a screen 103 requests an assistant 2 near a data projector 102 to operate an information processing apparatus (for example, a personal computer) 101 as appropriate. , The data projector 1 based on the data from the information processing apparatus 101.
02 projects the corresponding image on the screen 103,
The explainer 1 points out a desired portion of the projected image on the screen 103 with the pointing rod 104 and gives an explanation.

[0003]

When a desired image is projected on a screen 103 in a conventional image projection by a data projector 102, an explainer 1 cooperates with an assistant 2 operating an information processing apparatus 101. Must. If the assistant 2 does not communicate with the assistant 2 or erroneously operates the key of the information processing apparatus 101 due to the dark environment, the image desired by the explainer 1 is not quickly selected, and the conference It gives participants an unpleasant mood. In particular, in the case of suddenly re-displaying data that has already been announced and that has already been announced, it is not possible to quickly communicate the intention to the assistant 2 and there is a problem that the progress of the conference is hindered.

There is also a system in which an infrared irradiator is used instead of the pointing rod 104. In this case, the presenter 1 operates the information processing apparatus 101 by himself without using the assistant 2 to irradiate the infrared light. Infrared rays from the vessel can be used to indicate and explain the desired location.However, because the infrared rays for instructions are obstructed by obstacles in the direction of travel, consider the environment where the infrared irradiator is used, Care must be taken not to be disturbed during use, and there is a problem that it is not easy to concentrate on the explanation.

[0005] In view of the above problems, an object of the present invention is to provide an image projection system that does not require an assistant and is not obstructed by obstacles, and can remotely control a display portion as desired by an explainer. I do.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a screen, and an image projecting device disposed at a distance from the screen for projecting an image on the screen. And an information processing apparatus that controls the image projection apparatus according to an instruction to project a predetermined image. The information processing apparatus controls the image projection apparatus with respect to the information processing apparatus. An instruction terminal for instructing the image projection unit by a wireless signal, and the information terminal is detachably attached to the information processing apparatus, and when attached to the information processing apparatus, the instruction terminal is instructed by a wireless signal to control the image projection unit. Then
A wireless communication device that receives the wireless signal and transmits the content to the information processing device.

[0007] A user near the screen appropriately operates the pointing terminal to indicate a desired location, and the pointing terminal transmits this instruction to the wireless communication device by a radio signal using electromagnetic waves. At this time, since the transmission is performed by the electromagnetic waves, the transmission is not easily disturbed by obstacles. The wireless communication device that received the instruction
This instruction is transmitted to the information processing apparatus, and the information processing apparatus operates the image projection apparatus in accordance with the instructed content to display a desired image on the screen.

In this case, the above-mentioned instruction terminal is preferably a transmitting / receiving terminal capable of receiving, and when the wireless communication device wirelessly transmits the operation content of the information processing device, the transmitting / receiving terminal receives the operation, It is desirable to display the transmitted contents on a display such as an LCD. It is desirable that the wireless communication device is a compact IC card type and has a battery saving function. When the wireless communication device is of an IC card type, the information processing device is preferably a personal computer having a slot capable of removably accepting the wireless communication device and equipped with software for a desired task.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a schematic system configuration diagram for explaining the overall configuration of an embodiment of an image projection system according to the present invention, and FIG. 2 is an example of an extendable pointing rod 14 used in FIG. FIG. 3A is a diagram showing an example in which a transmitting / receiving terminal 15 for giving a projection instruction to the pointing rod 14 in FIG. 2 is shown, and FIGS. 3B and 3C are diagrams showing an example. FIG. 3 is an enlarged side view and an example front view of the transmitting / receiving terminal 15 shown in FIG. 3A, and FIG. 4 is a block diagram showing a detailed configuration of the transmitting / receiving terminal 15 shown in FIG. FIG. 5 is an external view showing an IC card type wireless communication device 16 inserted into the personal computer 11 shown in FIG. 1 in the present embodiment, and FIG. 6 is a view showing the IC card type wireless communication device 16 in FIG. FIG. 3 is a block diagram illustrating a detailed circuit configuration.

The image projection system 10 includes a personal computer 11 used as an information processing apparatus.
A data projector 12 connected to a personal computer 11 by a cable, controlled by the personal computer 11, and used as an image projection device for projecting a predetermined image in accordance with an instruction given from the personal computer 11; A screen 13 on which an image projected by
A pointing rod 14 used by the user 1 and attached to the pointing rod 14 to wirelessly output an instruction relating to display on the screen 13 to the personal computer 11 and receive a wireless signal from the personal computer 11. A transmission / reception terminal 15 and an IC which is a wireless communication device that receives a radio instruction from the transmission / reception terminal 15, transmits it to the personal computer 11, and transmits a predetermined signal from the personal computer 11 to the transmission / reception terminal 15 as a radio signal And a card-type wireless communication device 16.

As shown in FIG. 3, the transmission / reception terminal 15 includes a front portion 15a and a back portion 15b, both of which can be fixed to the pointing rod 14 by a lock mechanism 15c. Is also possible. An LCD 44 for displaying the operation status is provided on the surface of the front portion 15a.
And key operation units 46a and 46b for instructing a predetermined operation (for example, page up or page down).

The circuit of the transmission / reception terminal 15 for transmitting / receiving a radio signal to / from the IC card type radio communication device 16 and controlling the display unit is constructed as shown in FIG. The wireless unit 42 is controlled by the control unit 43 and exchanges wireless signals with the IC card type wireless communication device 16 via the antenna 41. The control unit 43 performs various processes in synchronization with a clock signal from the clock unit 49 according to a program stored in the ROM 47. That is, the control unit 43 outputs an identification code for calling the IC card type wireless communication device 16 via the wireless unit 42 in accordance with an instruction from the key operation units 46a and 46b, and after the communication path is determined, the IC card type wireless communication device. It communicates with the communication device 16 to store necessary data in the RAM 48 and drives the LCD driver 45 to display data to be displayed on the LCD 44. The battery 50 here supplies power to these components.

The personal computer 11 shown in FIG.
As shown in FIG. 5, a slot 11a for removably receiving the IC card type wireless communication device 16 inserted in the direction of the arrow DR is provided on the side. When the IC card type wireless communication device 16 is inserted into the slot 11a, an IC
The connector 68a of the card-type wireless communication device 16 is provided with a connector 68 provided at the back of the slot 11a as shown in FIG.
and b. Connectors 68a, 68 used here
b shall conform to the standards of the Japan Electronic Industry Development Association (JEIDA) and the International Association of Personal Memory Cards (PCMCIA).

When the personal computer 11 and the IC card type wireless communication device 16 are connected via the connectors 68a and 68b, the IC card type wireless communication device 16 shown in FIG. As well as receiving power from the personal computer 11 to the power supply circuit 71, transmission and reception of wireless signals with the transmitting / receiving terminal 15 can be performed.
The power supply circuit 71 is provided with the IC card type wireless communication device 16.
It is also possible to supply power to each section and charge the secondary battery 72 for backup.

Further, in the IC card type radio communication device 16, the radio section 62 is connected to the control section 64 via the decoder section 63. The wireless unit 62 is controlled by the control unit 64 and exchanges wireless signals with the transmitting / receiving terminal 15 via the antenna 61. The wireless unit 62 amplifies and demodulates the received wireless signal, converts the amplified signal into a readable digital signal, and delivers the digital signal to the decoder unit 63. Decoder section 63
Reads the identification code assigned to the IC card type wireless communication device 16 from the ROM 69, compares it with the identification code received from the wireless unit 62, and if they match, recognizes that the call is for itself, The information is transmitted to the control unit 64. The control unit 64 is configured by a microprocessor or the like, and performs various processes in cooperation with the personal computer 11 in accordance with a program stored in the ROM 69 using data on the personal computer 11 stored in the ROM 69.

In the above-mentioned IC card type wireless communication device 16, the control unit 64 controls the personal computer 11
Is converted into a signal tuned to the personal computer 11. In this way, for example, when the control unit 64 receives a call addressed to itself from the transmission / reception terminal 15 via the wireless unit 62 and the decoder 63, the control unit 64 drives the driver 67 to blink the LED 65a, thereby receiving the call. Is notified, the self-identification signal is sounded from the speaker 66, or the LEDs 65a and 65b are turned on or off according to the received data. The power switch 73a turns ON / OFF the activation of the IC card type wireless device 16. The set switch 73b is a push (set) switch for stopping an alert sound or setting a silent mode. The memory switch 73c sets the transmission / reception setting conditions stored in the RAM 70 with the LEDs 65a,
This is a push (set) switch for calling to 65b. FIG. 8 shows the structure of this embodiment. In the present embodiment, an LED is provided on the housing of the IC card type wireless device 16.
A lens 74 is incorporated, and LEDs 65 a and 65 b are mounted on a printed board 75 near the LED lens 74.

The control unit 64 further transmits a page to be projected on the screen 13 to the personal computer 11, and the personal computer 11 outputs data of the corresponding page to the data projector 12, and displays the contents of the page on the screen 13. Make it projected. Also,
The control unit 64 wirelessly transmits the content processed or processed by the personal computer 11 to the transmitting / receiving terminal 15 via the wireless unit 62, and the transmitting / receiving terminal 15 appropriately displays the content on the LCD 44 of the transmitting / receiving terminal 15. Let them do it. Note that the control unit 64 has a battery saving function to reduce the load of power supply to the IC card type wireless communication device 16 of the personal computer 11.

An example of the operation of the above-described image projection system will be described with reference to the flowchart of FIG. IC
The card type wireless communication device 16 is the personal computer 1
When the PC 11 is inserted into the slot 11a (hereinafter abbreviated as PC 11) (step S1), the PC 11 checks whether the insertion is completed (step S2). As a result of the confirmation, if the insertion is not completed, the confirmation is repeated again. If the insertion is completed, the PC 11
Power is supplied to the IC card type wireless communication device 16 through the connector, and the power supply circuit 7 of the IC card type wireless communication device 16 is supplied.
1 is activated, and the ROM 69 is accessed to
IC card type wireless communication device 16 stored in M69
Then, the contents such as the recognition number are read out (step S3).

As a result of the reading in step S3, the PC 11
Confirms that the received signal of the IC card type wireless communication device 16 is receivable (step S4),
Necessary information is received from the control unit 64 of the C card type wireless communication device 16 via the connector (step S5). PC
11 detects control signal information from the transmitting / receiving terminal 15 based on the received information, and executes a command from the transmitting / receiving terminal 15 included in the control signal information (for example, projection of the first page onto the screen) (step S6). ). After the execution, it is determined whether there is a next projection command (for example, a page up by pressing the key operation unit 46b or a page down by pressing the key operation unit 46a) (Step S).
7) If it is, the process returns to step S5. If there is no next projection command, it is determined whether the projection operation is completed (step S8). If not, step S7 is performed.
When the projection operation ends, the process ends.

In the above-described example, the key operation units 46a and 46b are provided in the transmission / reception terminal 15, but the graphics-based keys are displayed on the LCD 44 so that various commands are given to the IC card type wireless communication device 16. It may be. In addition, although the pointing rod 14 is used to point out a part of the image projected on the screen 13, an infrared irradiator is provided on the transmission / reception terminal 15 side, and a ring of light or the like is projected on a required portion of the screen 13, Send and receive terminal 1
5 and may be used to indicate necessary points by remote control.
For simplicity, the transmission / reception terminal 15 may be an instruction terminal having only a transmission function of transmitting an instruction, and the IC card type wireless communication device 16 may be a wireless communication device having only a reception function.

[0021]

As described in detail above, the image projection system according to the present invention has an image projection device arranged at a position away from the screen for projecting the image on the screen, and the image projection system according to the given instructions. In an image projection system having an information processing device that controls a projection device to project a predetermined image, an instruction terminal that instructs the information processing device to control the content to control the image projection device by a wireless signal; A wireless communication device that receives the signal and transmits the content to the information processing device.

With this configuration, the user near the screen operates the indicating terminal appropriately to indicate a desired location, and the indicating terminal transmits the instruction wirelessly by a radio signal using electromagnetic waves. The wireless communication device that has transmitted the instruction to the communication device and received the instruction transmits the instruction to the information processing device, and the information processing device operates the image projection device according to the instruction, and displays a desired image on the screen. It is possible. In this case, since the instruction terminal gives an instruction using a radio signal based on electromagnetic waves, the instruction terminal is not easily disturbed by obstacles. In addition, the wireless communication device that receives the instruction transmits the content of the instruction to the information processing device, and the information processing device operates the image projection device according to the instruction, and automatically projects a desired image on the screen. An assistant is not required, and a conference or the like can proceed efficiently. Also, when changing the page to be projected, the change can be performed freely, and there is an effect that the usability is good.

[Brief description of the drawings]

FIG. 1 is a schematic system configuration diagram for explaining an overall configuration of an embodiment of an image projection system according to the present invention.

FIG. 2 is a view showing an example of an extendable pointing rod 14 used in FIG.

FIG. 3A is a diagram illustrating an example in which a transmission / reception terminal 15 for giving a projection instruction to the pointing rod 14 in FIG. 2 is attached. (B) and (c) are figures which show an example of the side view and front view which expand and show the transmitting / receiving terminal 15 shown by (a).

FIG. 4 is a block diagram showing a detailed configuration of a transmitting / receiving terminal 15 shown in FIG.

FIG. 5 is an external view showing an IC card type wireless communication device 16 inserted into the personal computer 11 shown in FIG. 1 in the embodiment.

6 is a block diagram showing a detailed circuit configuration of the IC card type wireless communication device 16 shown in FIG.

FIG. 7 is a schematic block diagram showing an IC card type wireless communication device 16 inserted into the personal computer 11 of the embodiment.

FIG. 8A is an enlarged view of a light emitting unit using an LED lens 74 in the IC card type wireless communication device 16;
(B) is an enlarged sectional view of the light emitting part of (a).

FIG. 9 is a flowchart illustrating an operation example of the image projection system of FIG. 1;

FIG. 10 is a diagram for explaining the overall configuration of a conventional image projection system.

DESCRIPTION OF SYMBOLS 1 User 10 Image projection system 11 Personal computer 11a Slot 12 Data projector 13 Screen 14 Indicator rod 15 Transmitter / receiver terminal 15a Front part 15b Back part 15c Lock part 16 IC card type wireless communication device 41, 61 Antenna 42, 62 Radio unit 43, 64 Control unit 44 LCD 45 LCD driver 46a, 46b Key operation unit 47, 69 ROM 48, 70 RAM 66 Speaker 67 Driver 68a, 68b Connector S1, ..., S8 Step

Claims (1)

[Claims] 1. A screen, an image projecting device arranged at a position separated from the screen for projecting an image on the screen, and controlling the image projecting device according to a given instruction to project a predetermined image. An image projection system comprising: an information processing device; an instruction terminal that instructs the information processing device by radio signals of contents to be controlled by the information processing device; When the information terminal is instructed to control the image projecting means by a wireless signal when attached to the information processing apparatus, the wireless terminal receives the wireless signal and transmits the content to the information processing apparatus. An image projection system comprising: a wireless communication device that communicates with the device.