JP3056617B2 - Electronic blackboard system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic blackboard system for reading and recording images such as characters written on a writing surface.

[0002]

2. Description of the Related Art A conventional general electronic blackboard has a writing surface, a reading device for reading characters and the like written on the writing surface, and a recording device for recording the read information. Inseparable.

Japanese Patent Laid-Open Publication No. Sho 62-90185 discloses an electronic blackboard main body device and a printer as a recording section, which are separated from the electronic blackboard main body device by a wire. And they could not be placed far apart.

Further, as described in Japanese Utility Model Application Laid-Open No. 3-4093, information written on an electronic blackboard is transmitted to a facsimile or a copying machine through a telephone line, or described in Japanese Patent Application Laid-Open No. 3-169696. As described above, the main unit of the electronic whiteboard includes a destination telephone number memory, a communication unit, transmission control means and reception control means, and the destination telephone number is stored in the destination telephone number memory. Although it is known that transmission or reception with the other party can be performed through a telephone line, these devices do not allow the user to freely select the installation location of the recording device of the electronic blackboard itself.

[0005]

When the electronic blackboard is used in a meeting or the like, if the recording device is integrated with or close to the main body of the electronic blackboard, written characters and the like are recorded by the recording device. When recording, due to the loud operation noise of the recording device, the conference may have to be interrupted until the recording is completed. In particular, when distributing recording papers to conference attendees, if the number is large, the conference interruption time becomes very long.

[0006] Further, the electronic blackboard is preferably free to move for the convenience of setting up a meeting place, and in many cases, casters are attached for that purpose. However, since a large amount of power is required for the recording device, the power supply cord is pulled out from the main unit of the electronic blackboard to supply power, and the movement range is naturally limited.

Accordingly, an object of the present invention is to separate a main unit having a writing unit and a reading unit and a recording device from each other so that they can be installed at arbitrary locations, thereby enabling a conference to be conducted by the noise of the recording device. It is an object of the present invention to make it possible to easily move the main unit without interrupting the operation and the like, and to freely select an installation place without restriction by a power cord.

[0008]

Electronic blackboard system according to the present invention SUMMARY OF THE INVENTION comprises a movable main unit, and which is composed of a separate recording apparatus, the body unit includes a writing surface, writing on the surface A reading device that reads the read image, and a wireless transmission device that wirelessly transmits the read information ,
The recording apparatus includes a radio receiver for receiving information from the wireless transmission device, an electronic blackboard system comprising a recording unit to record the received information, said writing surface
Is a transparent sheet, the reading sheet
The device used external light transmitted through this transparent sheet
The light from the illuminating unit is received by the light receiving unit to read the image.
And features.

This electronic blackboard system can further add the following configuration to the above basic configuration .

[0010] The illumination means may be an external light for introducing external light.
An introduction member is provided.

The lighting means scatters the introduced light.
And a light scattering member for irradiating the transparent sheet.

[0012] The main unit includes the reading device and a wireless transmission device.
A power supply for supplying power to the communication device;
Is composed of a removable secondary battery, and
A charging device for charging is provided in the recording device.
You.

[0013]

In the recording device, a modulation / demodulation device and a line control device are provided between the radio reception device and the recording unit, and information is transmitted from the radio transmission device to the recording unit via a telephone line.

The reading device is provided on a moving body that can be manually moved along the writing surface, and moves integrally with the moving body to read an image on the writing surface.

The power supply device includes a power generating device that generates power by moving the moving body, and a power storage device that stores the electricity.

[0017]

In the electronic blackboard system according to the present invention, when the recording device is separated from the main device of the electronic blackboard and the writing surface is read on the main device side, the information is wirelessly transmitted to the recording device and recorded. The main device and the recording device can be installed separately from each other. The main unit is
Since the power supply device is provided in itself, the moving range is not limited.

[0018]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 and 2, the electronic blackboard system according to the present invention includes a movable main body device 10 and an independent recording device 11 separated therefrom.

The main unit 10 is provided with an endless writing sheet 15 having a writing surface 14 on a movable stand 13 which can be freely moved by a caster 12.
Is mounted so that it can be circulated by the sheet feeder 16, a reading device 17 for reading an image such as a character written on the writing surface 14 is provided, and a box 18 attached to the moving stand 13 is provided. To
The wireless transmission device 19 and the power supply device 20 are provided, and the antenna 21 of the wireless transmission device 19 is mounted on the mobile stand 13. As shown in the block diagram of FIG. 2, the power supply device 20 supplies power to the motor 22 for rotating the rollers of the sheet feeding device 16, the reading device 17, and the wireless transmission device 19, and includes a lead storage battery and a nickel cadmium. It is composed of a rechargeable secondary battery such as a battery, and can be removably loaded in the box 18.

When the sheet 15 is circulated by the sheet feeder 16, characters written on the writing surface 14 are imaged by a CCD or the like via an imaging lens 23 in a reader 17, as shown in FIG. It is read by the sensor 24. Then, the read information is converted into radio waves by the wireless transmission device 19 and transmitted. The sheet 15 may be wound around rollers instead of being circulated in an endless manner.

On the other hand, as shown in FIG. 1, the recording device 11 incorporates, for example, a recording unit 25 of an electrophotographic system, a charging device 26, a wireless receiving device 27, and a signal converting device 28. Antenna 29 is provided outside. Then, the radio wave transmitted from the radio transmission device 19 of the main body device 10 is received by the radio reception device 27, the received signal is converted into an image signal by the signal conversion device 28, and
5, and the characters and the like on the writing surface 14 are recorded on the paper 30. Since the recording device 11 does not need to be moved freely, power is supplied through a power cord 31. The power supply device (secondary battery) 20 of the main body device 10 is taken out of the box 18 and charged by the charging device 26 on the recording device 11 side when charging is required.

The recording device 11 has the recording unit 2 as described above.
5. In addition to a single structure incorporating the charging device 26, the wireless receiving device 27, and the signal conversion device 28, the following separation method using a telephone line may be used. That is, as shown in FIG. 2, a receiving unit 11A including a power supply unit (PSU) 32 for supplying power through a power cord 31, a charging device 26, a wireless receiving device 27, a modem (modulation / demodulation device) 33, and a line control device 34, , Line controller 35,
Separated into a recording unit 11B including a modem 36, a signal conversion device 28, and an electrophotographic digital copying machine 37,
These are connected via a telephone line 38. The radio wave received by the wireless receiver 27 of the receiver 11A is transmitted as a telephone signal by the modem 33 and the line controller 34 to the recorder 11B via the telephone line 38, and is transmitted to the recorder 11B.
The signal is received by the B line controller 35 and the modem 36 and is converted by the signal converter 28 into a signal format for the copying machine 37. The copying machine 37 scans and modulates the laser beam in accordance with this signal to form an image on the photoreceptor and transfers it to a sheet.

Next, FIG. 3 shows an example in which a transparent sheet 39 is used as a writing sheet and characters and the like written on the transparent sheet 39 are read in a transparent manner. In the figure, the transparent sheet 39 is guided by the guide rollers 41 and 42 by the rotation of the drive roller 40, and the back plate 4 between the right and left covers 43 and 44 is guided.
5 along the front. A lenticular lens for condensing external light (external light guide)
(Entry member) 46 is provided. The light condensed by the lens 46 is transmitted to a mirror 47 installed inside the cover 43.
Then, the light is scattered by the light scattering member 48, and then radiated to the transparent sheet 39 and transmitted therethrough.
The light enters an image sensor 24 such as a CCD via the. Thereby, characters and the like written on the transparent sheet 39 are read as electric signals.

FIG. 4 shows an example in which the reading device 17 is manually moved for reading. That is, the mobile stand 13
The front surface of the writing board 49 fixed above is used as the writing surface 14, and the moving body 50 sandwiching the writing board 49 is moved to the moving stand 1.
3 can be manually slid along the guide rail portion 51,
The reading device 17 is provided on the moving body 50. Then, the reading device 17 is moved integrally with the moving body 50 and the writing surface 14 is moved.
The linear encoder 52 for detecting the moving speed provided on the lower edge of the writing
Read.

FIG. 5 shows an example of a structure for generating power in accordance with the movement of the moving body 50 and storing the electricity in the configuration of FIG. In this case, the moving body 50 is slidably mounted on the writing board 49 by sandwiching the writing board 49 between the guide rollers 53 and 54 on the front side of the writing board 49 and the guide rollers 55 on the back side. . In addition, a power generation device 56, a pulley 57, a reading device 17, a wireless transmission device 19, and a power storage device 58 are provided inside the hollow moving body 50. Then, when the moving body 50 moves and the guide roller 54 rotates, and the rotation is transmitted to the power generation device 56 via the pulley 57, the power is generated and the electricity is stored in the power storage device 58. ing. The reading device 17 and the wireless transmission device 19 use the power storage device 58 as a power source.

[0026]

The advantages of the present invention are as follows for each claim. <Claim 1 > When the recording device is separated from the main device of the electronic blackboard and the writing surface is read on the main device, the information is transmitted to the recording device wirelessly and recorded. Can be installed at an arbitrary remote place, so that the noise of the recording device does not disturb the conference or the like. Change
In addition, the writing sheet constituting the writing surface is a transparent sheet
Therefore, it is possible to read with transmitted light even if the illumination is weak.
External light can be used, eliminating the need for power consumption
Or fewer, and the reader is simpler
Configuration, so that it can be manufactured at low cost and
No.

[Claim 2 ] An external light for introducing the external light by the illumination means utilizing the external light.
Equipped with an introduction member, so that external light can be used more effectively.
Can be

<Claim 3 > The illumination means using external light scatters the introduced light.
To provide a light scattering member for irradiating the transparent sheet
Irradiate the transparent sheet more evenly with the introduced external light.
Can be.

<Claim 4 > Since the main unit has its own power supply,
There is no limitation on the movement range, and the installation location can be freely selected.
You. Moreover, as this power supply device, a removable secondary battery
It is economical to use and also this secondary battery
A charging device for charging the battery is provided on the recording device side.
Can be made at low cost, and if the charger is
There is no problem for use.

[0030]

<Claim 5 > After the wireless transmission / reception, the data is transmitted to the recording device via the telephone line. Can record. In addition, wireless transmission and reception can be limited to a range where the required output can be minimized, and power consumption can be reduced. In addition, it is possible to use not only the wireless transmission / reception method using radio waves but also another wireless transmission / reception method with a short reach of infrared rays or the like. In this case, since the electronic blackboard is transmitted wirelessly from the main unit, the degree of freedom of movement and use of the main unit is not limited at all.

<Claim 6 > Since the reading device is manually moved for reading, the power required for moving the sheet is not required, and the power consumption of the main unit can be greatly reduced.

<Claim 7 > Since the power is generated and stored in accordance with the movement of the reading device, the consumption of the secondary battery is extremely reduced, and the need for replacement thereof is eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a basic configuration of an electronic blackboard system according to the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the electronic blackboard system.

FIG. 3 is a cross-sectional view showing a structure in which a transparent sheet is used as a writing sheet and characters or the like written on the sheet are read using external light.

FIG. 4 is a perspective view of an example in which a reading device is manually moved.

FIG. 5 is a plan view showing an example of a structure for generating power in accordance with the movement of the reading device and storing the electricity.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Main body apparatus 11 Recording device 12 Caster 13 Moving stand 14 Writing surface 15 Writing sheet 16 Sheet feeding device 17 Reading device 19 Wireless transmission device 20 Power supply device 23 Imaging lens 24 Image sensor 25 Recording unit 26 Charging device 27 Wireless receiving device 28 Signal conversion device 33/36 Modem (modulator / demodulator) 34/35 Line controller 37 Copier 38 Telephone line 39 Transparent sheet 46 Lenticular lens (External light introducing member) 48 Light scattering member 49 Writing board 50 Moving body 56 Power generation device 58 Power storage apparatus

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-2-153367 (JP, A) JP-A-64-26498 (JP, A) JP-A-64-32185 (JP, U) JP-A-63-185 100294 (JP, U) (58) Fields studied (Int. Cl. ⁷ , DB name) H04N 1/00 B43L 1/04-1/10

Claims (7)

(57) [Claims] An electronic apparatus includes a movable main unit and a recording device separated therefrom. The main unit includes a writing surface, a reading device for reading an image written on the surface, and a read device for reading the read information. Do not integrate with a wireless transmission device that performs wireless transmission.
In addition, the recording device is a writing sheet constituting the writing surface in an electronic blackboard system including a wireless receiving device that receives information from the wireless transmitting device and a recording unit that records the received information. Is a transparent sheet
The reading device transmits through the transparent sheet;
The light from the illumination means using light is received by the light receiving unit and the image is received.
An electronic blackboard system, characterized by reading an image. 2. The lighting device according to claim 1, wherein said lighting means includes an external light for introducing external light.
2. The method according to claim 1, further comprising a light introducing member.
Electronic blackboard system described. 3. The illumination means scatters the introduced light.
Light scattering member for irradiating the transparent sheet
3. The electronic blackboard system according to claim 1, wherein
Stem. 4. The wireless communication device according to claim 1, wherein the main body device includes the reading device and a wireless communication device.
A power supply for supplying power to the transmitting device;
Is composed of a removable secondary battery.
A charging device for charging is provided in the recording device.
The electronic blackboard system according to claim 1, wherein
M 5. The wireless communication device according to claim 1 , wherein
Between the device and the recording unit, a modem and a line controller
Provided, information from the wireless transmission device via a telephone line
The method according to claim 1, wherein the data is transmitted to a recording unit.
Electronic blackboard system. 6. The reading device according to claim 1 , wherein
Provided on a moving body that can be moved
Moving along with the moving object to read the image on the writing surface
The electronic blackboard system according to claim 1, wherein the electronic blackboard system is characterized in that: 7. The apparatus according to claim 1 , wherein said power supply device is adapted to move said moving body.
A power generating device that generates electric power, and a power storage device that stores the electricity.
7. The method according to claim 6, wherein
Electronic blackboard system.