KR20110118261A - Portable presentation system - Google Patents

Portable presentation system Download PDF

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Publication number
KR20110118261A
KR20110118261A KR1020100037758A KR20100037758A KR20110118261A KR 20110118261 A KR20110118261 A KR 20110118261A KR 1020100037758 A KR1020100037758 A KR 1020100037758A KR 20100037758 A KR20100037758 A KR 20100037758A KR 20110118261 A KR20110118261 A KR 20110118261A
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KR
South Korea
Prior art keywords
data
transmitter
ultrasonic
receiver
terminal
Prior art date
Application number
KR1020100037758A
Other languages
Korean (ko)
Inventor
차성철
Original Assignee
차성철
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Application filed by 차성철 filed Critical 차성철
Priority to KR1020100037758A priority Critical patent/KR20110118261A/en
Publication of KR20110118261A publication Critical patent/KR20110118261A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
    • G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
    • G06F3/03545—Pens or stylus
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/043—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Position Input By Displaying (AREA)

Abstract

A portable presentation system is disclosed. A wireless electronic pen capable of writing on a board and having an ultrasonic transmitter for transmitting ultrasonic waves of different phases according to time; and an ultrasonic pen coupled to one end of the board; A first receiver configured to receive the time at which the ultrasonic transmitter has transmitted the ultrasonic wave, a first main processor unit which analyzes the information received from the first receiver, and converts the received information into first data, and transmits the first data to the outside A first position reader including a first transmitter configured to be coupled to the other side of the board, the second receiver configured to receive the ultrasonic wave transmitted from the ultrasonic transmitter and the time when the ultrasonic transmitter transmits the ultrasonic wave; A second main processor that analyzes the information received from the second receiver and converts the information into second data, and a second that transmits the second data to the outside A second location reader including a transmitter; a terminal receiving module configured to receive the first data and the second data; a distance between the first data, the second data, and the first location reader and the second location reader; A terminal for determining the position of the end of the wireless electronic pen using a; and a portable presentation system including a projector connected to the terminal in signal, the projector for transferring the image to the board.

Figure P1020100037758

Description

Portable presentation system

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable presentation system, which is convenient to carry and relates to a portable presentation system in which written contents can be stored directly on a computer.

The existing electronic board is a very large board fixed, and sensors inside the board detect pen input. As sensors are combined on a wide board, there is a problem in that the manufacturing cost is high.

In addition, the conventional electronic blackboard is cut to such an extent that it is impossible to carry.

The present invention seeks to provide a presentation system that is portable.

According to one aspect of the invention,

A wireless electronic pen capable of writing on a board, and having an ultrasonic transmitter for distributing ultrasonic waves of different phases according to time;

A first receiver coupled to one side of the board, the first receiver receiving the ultrasonic wave transmitted from the ultrasonic transmitter and the time at which the ultrasonic transmitter transmits the ultrasonic wave, and analyzing the information received from the first receiver; A first position reader including a first main processor unit for converting the data into a first transmission unit, and a first transmitter for transmitting the first data to the outside;

A second receiver coupled to the other side of the board, the second receiver receiving the ultrasonic wave transmitted from the ultrasonic transmitter and the time at which the ultrasonic transmitter transmits the ultrasonic wave, and analyzing the information received from the second receiver; A second position reader including a second main processor unit for converting the data and a second transmitter for transmitting the second data to the outside;

A terminal receiving module configured to receive the first data and the second data;

A terminal for determining a position of an end of the wireless electronic pen using the first data, the second data, and the distance between the first position reader and the second position reader;

Signal connection with the terminal, it is possible to provide a portable presentation system including a projector for transferring an image to the board.

The present invention can provide a portable presentation system using a pair of position reader and a wireless electronic pen that transmits ultrasonic waves.

1 is an operation example of a portable presentation system according to an embodiment of the present invention.
2 is a block diagram of a portable presentation system according to an embodiment of the present invention.
Figure 3 is an illustration of the waveform of the ultrasonic wave transmitted from the ultrasonic transmitter in accordance with an embodiment of the present invention.
Figure 4 is an exemplary view for explaining a method for determining the distal position of the wireless electronic pen in a portable presentation system according to an embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which are intended to explain in detail enough to enable those skilled in the art to easily carry out the present invention. This does not mean that the spirit and scope of the present invention is limited.

1 is a diagram illustrating an operation of a portable presentation system according to an embodiment of the present invention, Figure 2 is a block diagram of a portable presentation system according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention Figure 4 is an exemplary diagram of the waveform of the ultrasonic wave transmitted from the ultrasonic transmitter, Figure 4 is an exemplary view for explaining a method for determining the position of the end of the wireless electronic pen in the portable presentation system according to an embodiment of the present invention. .

The portable presentation system 10 of the present embodiment can write on the board 100, and a wireless electronic pen having an ultrasonic transmitter 111 that transmits ultrasonic waves of different phases according to time is coupled to the end ( 11); The first receiving unit 121 is coupled to one side of the board 100 and receives the ultrasonic wave transmitted from the ultrasonic transmitting unit 111 and the time when the ultrasonic transmitting unit 111 transmits the ultrasonic wave. 1. A first position reader including a first main processor unit 123 for analyzing the information received from the receiver 121 and converting the information into first data, and a first transmitter 122 for transmitting the first data to the outside ( 12); A second receiver 131 coupled to the other side of the board 100 and receiving the ultrasonic wave transmitted from the ultrasonic transmitter 111 and the time when the ultrasonic transmitter 111 transmits the ultrasonic wave; A second position including a second main processor 133 for analyzing the information received from the second receiver 131 and converting the information into second data, and a second transmitter 132 for transmitting the second data to the outside; A reader 13; A terminal receiving module 14 for receiving the first data and the second data; A terminal (15) for determining a position of an end of the wireless electronic pen (11) by using the first data, the second data, and the distance between the first position reader and the second position reader; Signal projector is connected to the terminal 15, the projector 16 for transferring the image to the board (100).

The ultrasonic transmitter 111 for transmitting ultrasonic waves is coupled to the end of the wireless electronic pen 11. Ultrasonic waves transmitted from the ultrasonic transmitter 111 transmit ultrasonic waves having different phases according to time. As shown in FIG. 3, a wavelength whose phase is periodically changed over time may be transmitted.

The wireless electronic pen 11 may further include a control system capable of controlling the terminal 15, including the ultrasonic transmitter 111. Therefore, the terminal 15 can be controlled using only the wireless electronic pen 11 to display the contents of the content transferred from the project 16.

The ultrasonic transmitter 111 also transmits information about the time at which the specific ultrasonic wave is transmitted to the first position reader 12 and the second position reader 13.

The first position reader 12 is coupled to one side of the board 100. The first position reader 12 processes the first receiver 121 for receiving the ultrasonic wave transmitted from the ultrasonic transmitter 111 and the information (signal) obtained from the first receiver 121 to convert the first data into the first data. A first main processor 123 and a first transmitter 122 for transmitting the first data to the outside. The first receiver 121 may also receive information on the time at which the ultrasound is transmitted from the ultrasound transmitter 111.

The signal received by the first receiver 121 is analyzed and processed by the first main processor 123. The first main processor unit 123 analyzes information on a wavelength characteristic, a transmitted time, a received time, a speed of the wavelength, and the like. The analyzed first data is transmitted to the terminal receiving module 14 through the first transmitter 122.

For example, the first receiver 121 receives ultrasonic waves having a phase corresponding to the point A of FIG. 3, and the first receiver 121 specifies the ultrasonic waves of the A phase and transmits the ultrasonic waves. The information is transmitted to the first main processor unit 123.

Meanwhile, the first memory unit 124 may be additionally coupled to the first position reader 12. The first memory unit 124 may have a built-in program for operating the first main processor unit 123, and may temporarily store a signal processed by the first main processor unit 123.

In addition, the second position reader 13 is coupled to the other side of the board (100). The second position reader 13 may analyze the signal obtained from the second receiver 131 and the second receiver 131 for receiving the ultrasound transmitted from the ultrasound transmitter 111, and convert the second signal into second data. The main processor unit 133 and a second transmitter 132 for transmitting the second data to the outside. The second receiver 221 may also receive information about the time at which the ultrasound is transmitted from the ultrasound transmitter 111.

The second receiver 131 receives a signal transmitted from the ultrasonic transmitter 111. The signal received by the second receiver 131 is analyzed by the second main processor 133. The second main processor unit 133 analyzes information on the characteristics of the wavelength, the transmitted time, the received time, the speed of the wavelength, and the like. The analyzed information is processed into second data. The second data is transmitted to the terminal receiving module 14 through the second transmitter 132.

For example, the second receiving unit 131 receives ultrasonic waves having a phase corresponding to the point A of FIG. 3, and specifies information about the transmitted time and the received time by specifying the ultrasonic waves of the A phase, and the second main processor unit. Forward to 133.

Meanwhile, the second memory unit 134 may be further coupled to the second position reader 13. The second memory unit 134 may include a program for operating the second main processor unit 133, and may temporarily store a signal processed by the first main processor unit 123.

The terminal receiving module 14 receives the first data and the second data. The terminal receiving module 14 may be connected to the terminal 15 in a USB manner. The terminal 15 may be a personal computer. The terminal 15 may have a program that interprets the first data and the second data. The terminal 15 uses the first data, the second data, and the information about the distance between the first position reader 12 and the second position reader 13 to determine the position of the terminal of the wireless electronic pen 11. At position 100).

The first data is data processed by the first position reader 12 and is a difference between the speed of the ultrasonic wave transmitted from the ultrasonic wave transmitter, the time at which the ultrasonic wave is transmitted, and the received time.

As such first data, the distance d1 from which the end of the wireless electronic pen 11 (the position at which the ultrasonic transmitter 111 is located) is separated from the first position reader 12 can be calculated as follows.

-Down-

Distance = Speed * Time

    a) Distance-> Distance from the first position reader 12 to the end of the wireless electronic pen 11

    b) speed-> speed of ultrasonic wave

c) time ---> Difference between the time when the ultrasonic wave is transmitted from the ultrasonic transmitter 111 and the time received by the first position reader 12

Using the first data, when calculating the distance from the first position reader 12 to the point where the end of the wireless electronic pen 11 is located, a virtual circle is determined as shown in R1 of FIG. 4.

Further, using the second data in the same manner, the distance from the second position reader 13 to the point where the end of the wireless electronic pen 11 is located becomes an imaginary circle as shown in R2 of FIG. 4. . The point where R1 and R2 meet is two, at this time, the P2 point which is out of the area of the board 100 is discarded, and the P1 point is adopted as the point where the end of the wireless electronic pen 11 is located.

In this way, the terminal 15 continuously positions the end of the wireless electronic pen 11 using the first data, the second data, and the distance between the first position reader 12 and the second position reader 13. It can be determined, the rule is the content written on the board (100).

The distance between the first position reader 12 and the second position reader 13 may be artificially input to the terminal 15, and a separate electronic component such as a laser or an ultrasonic wave may be input to the first position reader 12 and the second position. It can be embedded in the reader 13 so that it can be measured automatically. The measured distance information between the first position reader 12 and the second position reader 13 may be transmitted to the terminal 15 through the terminal receiving module 14 using a separate transmission device.

On the other hand, the first transmitter 122, the second transmitter 132 and the terminal receiving module 14 may be transmitted and received to each other by a wireless signal of the Bluetooth (Bluetooth) method.

The terminal 15 and the projector 16 may be connected by a wired cable, and the wired cable may be an RGB cable.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Modifications and additions by those skilled in the art to an equivalent range based on the embodiments will also fall within the scope of the present invention.

Portable Presentation System (10) Boards (100)
Ultrasonic Transmitter (111) Wireless Electronic Pen (11)
First receiver 121 First main processor 123
First Transmitter 122 First Position Reader 12
Second receiver 131 Second main processor 133
Second position reader (13) terminal receiving module (14)
Terminal (15) Projector (16)

Claims (5)

A wireless electronic pen capable of writing on a board, and having an ultrasonic transmitter for distributing ultrasonic waves of different phases according to time;
A first receiver coupled to one side of the board, the first receiver receiving the ultrasonic wave transmitted from the ultrasonic transmitter and the time at which the ultrasonic transmitter transmits the ultrasonic wave, and analyzing the information received from the first receiver; A first position reader including a first main processor unit for converting the data into a first transmission unit, and a first transmitter for transmitting the first data to the outside;
A second receiver coupled to the other side of the board, the second receiver receiving the ultrasonic wave transmitted from the ultrasonic transmitter and the time when the ultrasonic transmitter transmits the ultrasonic wave, and analyzing the information received from the second receiver; A second position reader including a second main processor unit for converting the data into a second transmission unit, and a second transmitter for transmitting the second data to the outside;
A terminal receiving module configured to receive the first data and the second data;
A terminal for determining a position of an end of the wireless electronic pen using the first data, the second data, and the distance between the first position reader and the second position reader;
And a projector connected in signal with the terminal to transfer an image to the board.
The method of claim 1,
And the ultrasonic transmitter is coupled to the end of the wireless electronic pen.
remind The method of claim 2,
And the terminal receiving module and the terminal are connected by a USB method. The method of claim 3,
And the terminal and the projector are connected by a wired cable. The method of claim 4, wherein
The first transmitter, the second transmitter and the terminal receiving module is a portable presentation system, characterized in that for transmitting and receiving each other by a wireless signal of the Bluetooth (Bluetooth) method.



KR1020100037758A 2010-04-23 2010-04-23 Portable presentation system KR20110118261A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100037758A KR20110118261A (en) 2010-04-23 2010-04-23 Portable presentation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100037758A KR20110118261A (en) 2010-04-23 2010-04-23 Portable presentation system

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020110123352A Division KR20110139676A (en) 2011-11-24 2011-11-24 Portable presentation system

Publications (1)

Publication Number Publication Date
KR20110118261A true KR20110118261A (en) 2011-10-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100037758A KR20110118261A (en) 2010-04-23 2010-04-23 Portable presentation system

Country Status (1)

Country Link
KR (1) KR20110118261A (en)

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