KR101175547B1 - Using the USB interface and pattern recognition for image display apparatus - Google Patents

Abstract

The present invention relates to a display device using an afterimage effect using a flashing LED light emitting device, and to install a plurality of light emitting devices in a row on a rod-shaped circuit board rotating in a fan shape so that the light emitting devices rotate in the air. A portable mobile display device, which transmits a data signal to be displayed, such as a character and a picture, to a memory of the display device through a USB interface means, and displays it on a light emitting device by detecting a swing pattern. The present invention relates to a display device for displaying accurate characters and pictures.

According to the present invention, a plurality of light emitting devices are installed as a supporting plate of a circuit board in a bar-shaped bar that can be held by hand, and the left and right sides of the fan shape are shaken and displayed by hand. Speed detection means for detecting the starting point and the direction and speed at which the display device moves, adaptive control means for performing pattern recognition and correction from the detection means, and transmitting character and image data to be displayed by being connected to a computer with a built-in USB. And a memory means for storing the digital data transmitted through the USB interface means.

LED array, adaptive controller, speed detector, first variable controller, pattern storage adaptive controller, first additive accumulator, left limit support, right light receiver, DMA controller, U.S. transceiver                                    

Description

Using after USB interface and pattern recognition for image display apparatus

1 is an operation diagram for understanding the present invention

Figure 2 is an understanding of showing the sequence and the flashing sequence for the character display light emitting device using the afterimage in the present invention

3 is a perspective view schematically showing a downloadable display device according to the present invention;

Figure 4 is a block diagram for the adaptive control device and the speed sensing and USB interface in the present invention

5 is a flow chart for explaining the operation of the adaptive control device of FIG.

6 is a block diagram for pattern recognition and correction during operation of the adaptive control device of FIG.

7 is a block diagram of the speed sensing means of FIG.

FIG. 8 is a block diagram for the USB interface of FIG.

9 is a data flow diagram downloadable in synchronization from the web server of FIG.

The present invention relates to a display device using a flashing LED semiconductor light emitting device, and a plurality of light emitting devices are installed in a row on a bar-shaped circuit board rotating in a fan shape so that the light emitting devices can be rotated and displayed in the air, and a USB interface is used. The present invention relates to a display device connected to a dedicated character input device to transmit a data signal for displaying a character and an image to be displayed on a light emitting device.

In general, display devices using light emitting devices can be used to represent still images such as moving picture numbers and letters using afterimages of eyes. Therefore, the viewing angle is limited, so there is not only a limited viewable range, but also a large amount of light emitting devices have to be used, so the manufacturing cost is high and there are also many power consumption problems.

Korean Patent Registration 20-0329745 allows a person to adjust the font size and the number of letters according to the shaking distance by manual switch operation to change the swing width according to the size and number of programmed characters or symbols. Korean Patent Laid-Open Nos. 1999-0086565 and 1999-0080132 allow the display device to be sequentially displayed on the display device by using a direction sensor for detecting a shaking direction. In addition, Japanese Patent Application Laid-Open No. 96-8660 describes a swing-type display device capable of stably displaying an expected image even if the swing operation is not skillful by using an electronic unit and a photoelectric sensor when manually swinging repeatedly.

Korean Patent Application No. 1998-0003949 describes using a PC's RS232C port to provide a way for a user to input desired image data into a display device.

However, in the case of displaying a precise image by arranging an array of LEDs in a plurality of columns among these conventional devices, there is a problem of power consumption and manufacturing cost increase by using a plurality of light emitting elements, and thus stable image during swing. If the user wants to display it, the LED blinks only by using the amount of change of the signal detected using the acceleration sensor or the direction sensor, and when the user can input the desired image data to the display device, the user separately There is a disadvantage that complicated setting for transmission baud rate and error verification

Accordingly, it is an object of the present invention to provide a display device which is easy to move and can display characters or pictures using a small number of light emitting elements.

Another object of the present invention is to provide a display device that can provide stable display information by recognizing a user's usage pattern together with a swing speed of the display device.

Still another object of the present invention is to provide a method for easily inputting desired image data to a display device.

In the afterimage display apparatus having a US B interface and pattern recognition according to the present invention for solving the above problems, when the display information is received and the display information is displayed on a virtual dot matrix composed of a predetermined number of dots, the dot matrix It characterized in that it comprises a LED display means for sequentially displaying the information corresponding to the vertical or horizontal dot array of on or off by turning on or off a series of light emitting LED elements.

In addition, a display device including a light emitting LED device having a row of dots measures the speed at which the user shakes the display information in order to display the text or image in a row of dot rows in synchronization with the detection unit. And a correction unit and a pattern recognition unit for estimating and correcting the residual time difference of the space train by recognizing the swing pattern of the space train.

In addition, the LED display device having a pattern recognition includes a USB control unit for providing a display control unit by receiving the display information from the interface device by directly connected to the USB port widely used in general computers with a USB control device The display information may be synchronized with the web server to be synchronized with the web server, and the promotion and advertisement text may be downloaded to an individual user or a member-oriented user, and may be easily input to the display device.

1 is a view illustrating an operation for understanding the present invention.

As shown in FIG. 1, after the user applies power to the main body 1 and selects a font such as a desired character or picture, the user shakes the left and right at a constant speed for a time difference 2 from t = 0 to n . The letter 3 is displayed. That is, the human eye recognizes a character or a picture by remaining after luminescence during the t + n time difference.

Figure 2 is an understanding of showing the light emitting device for character display and the blinking sequence using the afterimage in the present invention.

In FIG. 2, the LED light emitting devices are arranged in the form of D _{0 to} D ₁₅ arrays 11 to form an LED array 12, and from t = 0 During the area of the font configuration time axis 14 up to t = 15 , t = 0, 1, 2... , 15 after the light emitting a row array 11 of the font position column of the corresponding character or picture to display the desired character or picture is left afterimage.

3 is a perspective view schematically showing a downloadable display device according to the present invention.

The main body 1 is composed of an LED display device 37 including the LED array 12 shown in FIG. 2, a switch 35 for shorting an operation mode and a power supply, and a USB port 35. The USB cable 33 including the computer input USB connector 32 and the display USB connector 34 can be connected to the main body 1 and the client computer 31 containing the USB port to download desired characters or pictures. . The client computer 31 is also connected to the server computer 39 via the Internet network 38. The server computer 39 transmits the latest supported software distribution version and font data of characters or pictures to the client computer 31. The client computer downloads and installs the font manager software, and the user directly creates the desired character or picture by using the font manager software, or downloads the font data provided by the server computer 39 to the main body 1 connected to the US Viport. Load to display the font of the desired character or picture.

 FIG. 4 is a block diagram for controlling the LED array 12 shown in FIG. 2 according to the present invention, and in the block diagram, the adaptive controller 41, the speed detector 43, the LED light emitter 44, the memory 42, The main blocks of the power supply 46 and the USB interface 45 are shown.

The USB interface 45 of FIG. 4 includes the display USB connector 31 of FIG. 3 and transmits digital data according to a standard protocol of the USB standard. The user automatically connects the main body 1 to the client computer 31 of FIG. 3 and automatically detects and ends the setting by the driver software of the client computer 31 without setting parameters of a separate complicated connection protocol. In addition, the USB interface 45 downloads digital data for fonts of characters or pictures desired by the user by using the USB protocol, and stores the digital data in the memory 42 by a microprocessor executing the adaptive control unit 41. The memory 42 includes various data for controlling the LED array 12 shown in FIG. 2 as well as storing font data. The adaptive controller 41 of FIG. 4 performs the adaptive control by inputting the velocity data of the speed detector 43 and the memory 42 and the pattern data in which the operation pattern of the user's main body 1 is stored. In addition, by accurately adjusting and updating the variables of the optimized control function and simultaneously performing the correction control to accurately control the LED light emitting unit 44 to operate the LED array 12 accurately even if the user swings the body 1 somewhat irregularly. Control to accurately represent the display character (3). The LED light emitting unit 44 is composed of a row array 11 and emits a desired character or picture by emitting the row array 11 in accordance with the emission time interval 13 according to a control signal by the adaptive control unit 41. It can be displayed. The power supply 46 is supplied from the battery and supplies power to the electric circuit elements to the adaptive control unit 41, the memory 42, the speed detection unit 43, the LED light emitting unit 44, and the USB interface 45.

FIG. 5 is a flowchart illustrating the operation of the adaptive control unit 41 of FIG. 4.

In the adaptive control 41 of Fig. 5, the microprocessor starts the control in the following order. First, when the operation is started, it is determined whether the operation is the recognition mode 51, and if the user is set to the recognition mode, the pattern recognition 512 procedure is entered. The pattern recognition 512 procedure is as follows. When the user emits the i = 0th LED of the LED array 12 while the user sets the main body 1 to the recognition mode, the user When the main body 1 is shaken three to four times, the speed detector 43 performs the speed detection function 514 using the data of the pulse train and completes the average speed calculation using the i- th average speed calculation process 515. In step i , the process of storing the average speed value (516) is completed. The pattern recognition is performed by repeatedly calculating the contents of the technology until i < n as needed by the number n of times of pattern recognition by the user.

If it is not the recognition mode 51 of the operation mode of FIG. 5, the process goes through the process of determining whether the display mode 52 again. If not the display mode 52, the flashlight operation 54 is performed. The flash light operation 54 may perform a light function when all the arrays 11 are statically operated under the control of the LED light emitting unit 44, and may perform a flash light function that can illuminate a dark place. have. In order to terminate the flashlight function, the LED light emitting unit 44 may be terminated according to the termination 55 determination process.

When the display mode 52 of FIG. 5 is selected, the microprocess of the adaptive control 41 performs a display font selection 53 process for selecting a font to display from the memory 42 and is detected by the speed detector 43. The speed detection 56 process is performed using the signal data of the acquired pulse train. After comparing the measured swing speed value and the user's operation pattern stored in the memory 42, the process of determining whether the pattern comparison result determination 57 is performed after calculating the adaptive control function shown in FIG. 6 is performed. At this time, when the result of the pattern comparison converges below a certain error category level, a control command is given to the LED light emitting unit 44 through the display operation 59 process, and the i- th LED of the array 11 is sequentially emitted. When the user performs a command to end the display end 511 determination process, the LED of the row array 11 of the LED light emitting unit 44 will stop the operation. On the other hand, if a certain error category is exceeded during the process of determining the pattern comparison result 57 after the adaptive control function calculation, a process of updating the correction coefficient after the correction coefficient 58 is performed. . After performing the operation process, the speed detection 56 is performed again to enable the optimal parameter extraction and control of the LED within the emission time interval 13 during the font configuration time axis 14 region. After this process, afterimage emission time control is performed.

FIG. 6 shows a more detailed block diagram for pattern recognition and correction during operation of the adaptive control 41 device of FIG.

The process of determining the pattern comparison result 57 after the adaptive control function calculation of FIG. 5 and the update 58 process after calculating the correction coefficient are described in more detail as follows. The sensor measurement adaptive controller 61 is used to store and call the pulse data of the speed detector 43 of FIG. 6 in the form of an array of adaptive control functions. At this time, in accordance with the array data in the column sequence number n = 0 is the first variable controller 63 and n = n-1 primary column sequence number second variable controller 65 as indicating the represented variable controller if the data string is an n-ary n There is a variable controller of the car. The memory 42 also uses a pattern storage adaptive controller 62 to store and recall the n- order data array of the resultant step average speed value storage 516 process stored through a series of pattern recognition 512 procedures. At this time, the n = 0 tea column array data call is first adder being inputted to the cumulative controller (64) n = n-1 heat shield is second addition there is becomes the input to the accumulation controller 66 adds the cumulative controller data string n Depending on the order, there are n cumulative accumulations. As a representative description, the first variable controller 63 and the first cumulative accumulation controller 64 are operated by receiving data X ₀ of the sensor measurement adaptive controller 61 and data D ₀ input of the pattern storage adaptive controller 62. The first variable controller 63 changes the control parameter variable by using the error value calculated from the first cumulative controller 64. Similarly, the first cumulative controller 64 is the first variable controller 63. Accumulate using the error value and add E ₀ The error value is provided to the first variable controller 63. The same operation is performed on the nth order for the call of the n- order data bits , resulting in Y ₀ , Y ₁ ,... Calculate the Yn-1 correction value. In this case, the correction adaptation controller 67 is applied to the LED light emitting unit 44 to perform accurate afterimage control.

7 is a block diagram of the speed sensing means of FIG.

The speed detector 43 of FIG. 4 is constituted by several mechanism structures and the light input / output device shown in FIG. The left limit support 71 and the right limit support 76 for the separation of the movable body 74 on the left and right sides are structurally connected to the rail and the support 75 so that the movable body 74 is connected to the rail and the support ( 75) to prevent break-out when moving through. When the movable body 74 is guided by the rail and the support 75, the optical input and output device detects the sensing movement. When the user shakes the main body 1 from left to right, the speed detecting module 77 moves to the main body 1. The left light output 72 and the right light output 79 of the speed detection module 77 support the light change to the left optical pickup sensor 73 while the moving body 74 moves to the left while radiating an optical output lamp. Detects to generate a constant pulse to generate a pulse train. When the main body 1 is shaken to the left side, the movable body 74 moves to the right side, causing a change in light of the right optical pickup sensor 78, generating a constant pulse, and the combination of these two pulse trains enables the direction detection and the moving speed to be known. At this time, the display speed detection 56 and the recognition speed detection 514 of the adaptive control 41 are performed through the operation of the microprocessor. Knowing the speed, it is possible to infer the distance of the swing interval through an arithmetic function such as an integral and provide data for controlling the light emission of the LEDs of the array of arrays 11 to be displayed afterimage.

FIG. 8 is a block diagram for the USB interface of FIG. 4.

The USB interface 45 of FIG. 4 includes a DMA controller 81, a reception buffer 82, a transmission buffer 83, a frequency oscillator 86, a memory 85, a power supply 87, and a US bit transceiver 88 in an internal block. ) Is a subblock of). The USB transceiver 88 is connected to the USB connector 35 of the USB port and satisfies the electrical standard according to the USB standard. Also, the serial digital data transmission by the differential voltage is transmitted to the internal USB controller 84 in parallel. To perform the transfer. The USB function controller performs a transmission protocol function conforming to the USB standard, and is in charge of controlling transmission and reception of data in association with a part of the memory 85 and the frequency oscillator 86. Function to transmit the digital data of the transmission buffer 83 to the USB transceiver 88 in accordance with the USB protocol or, conversely, to confirm whether the data authorized from the USBB transceiver 88 has arrived in accordance with the USB protocol and deliver the received data to the reception buffer 82. Do this. The data of the receiving buffer 82 and the transmitting buffer 83 transmits or calls a large amount of high-speed data to the main memory 42 of the system using the DMA controller 81. A large amount of data used at this time is a font data of the character or picture downloaded from the client computer 31 and provides the advantage that can be transmitted in a high speed font data in a short time.

9 is a data flow chart downloadable in synchronization from the web server of FIG.

FIG. 9 is a flowchart illustrating an interlocking relationship between the server computer 39, the Internet network 38, the client computer 31, and the LED display device 37 of FIG. The first user visits the site through the internet network 38 to the server computer 39 via the client computer 31. At this time, the server computer 39 performs ID and password checks such as user authentication or membership registration, etc., and then requests the installation of a dedicated program. If the font manager program is not installed on the client computer 31, it is downloaded and installed, the distribution version is checked, and the result is transmitted to the server computer 39. At this time, the server computer 39 distributes the latest version of the font manager software and fonts. Thereafter, the user connects the main body 1, which is the LED display device 37, to the USB port of the client computer 31. The client computer 31 drives the recognition of the main body 1 and the font manager software based on the operation principle of the above-mentioned USB interface 45 described above. At this time, the user performs a synchronization function of automatically downloading font data received from the server computer 39 to the main body 1 via the USB interface 45. On the other hand, a user can directly drive the font manager program of the client computer to directly create the font data of the character or picture desired by the user can be used to download directly to the main body 1 via the USB interface (45). In addition, the user accesses the server computer 39 with an auto-generated font player by using a mobile phone or other computer through an Internet mail connection, visits the site, requests production, or uploads font data desired to be shared and distributed among members. I can make it

As such, the afterimage display device of the present invention has an effect of allowing a user to access a USB port mounted on a general computer to directly create a data string of a desired character or picture, or to download a pre-made font and display it in a space. By arranging the light emitting elements in a row and displaying a predetermined character string in the space, a small number of light emitting elements can display a character or a picture to be displayed, and can be used as a signal, a cheering accessory, or a flash light at night climbing, stadium, or concert hall There is an effect that can be used. In addition, by storing the user's operation pattern in advance, it recognizes the operation during the after-image display operation to control a series of light emitting elements to display the characters or pictures accurately in the space.

Claims (11)

In a display device using a light emitting element, An LED light emitting unit 44 for displaying a plurality of light emitting elements of the array of arrays 11 on a circuit board of the rod-shaped main body 1; A USB interface 45 for receiving a character or a picture desired by the user from the client computer 31 through the USB port, A memory for storing font data of characters or pictures received from the UBS interface unit and variable data created by recognizing a user's operation pattern; An adaptive controller 41 made of a microprocessor for pattern recognition and adaptive control to control the LED light emitter 44; A speed detector 43 for use in user's motion pattern recognition and for detecting the actual speed of motion; Characters and pictures are displayed as afterimages, including the LED light emitting unit 44, the adaptive control unit 41, the speed detecting unit 43, the memory 42, and the power supply 46 for applying electricity to the USB interface 45 circuit. , The adaptive controller 41 determines the recognition mode 51, the display mode 52, the flash light operation 54, and the pattern comparison result discrimination 57 after calculating the adaptive control function by the program of the microprocessor. Display device characterized in that performed.  The method of claim 1 The LED light emitting unit (44) is a display device, characterized in that it can represent a character or a picture in 16 configurations of a row array (12).  The method of claim 1 The USB interface 45 performs the USB protocol, and therein, a DMA controller 81, a reception buffer 82, a transmission buffer 83, a USB function controller 84, a memory 85, and a frequency oscillator 86 (87) A display device comprising a U-bit transceiver (88).  The method of claim 1 The memory (42) is characterized in that it comprises a non-volatile memory that can be stored for storing the user's operation pattern and the font data of the transmitted character or picture even when the power is off. delete  The method of claim 1 After the adaptive control function is calculated, the pattern comparison result discrimination process 57 is performed by a microprocessor program. The sensor measurement adaptation controller 61, the pattern storage adaptation controller 62, the first variable controller 63, and the first cumulative controller (64), a display apparatus characterized by performing a process of a second variable controller and a second adder accumulator represented as representative of the nth order term. The method of claim 1, wherein The speed detecting unit 43 includes a left limiting support 71, a right limiting support 76, a rail and a support 75, and a moving body 74 in the speed detecting module 77. 72) and a right optical output sensor (79), a left optical pickup sensor (73) and a right optical pickup sensor (78). In the display device connected to the computer, An LED display device 37 including a USB interface 45 and an LED array 12 for easy connection to the USB port of the client computer 31; A client computer capable of distributing and installing font manager programs and fonts from the server computer 39 and producing fonts, and transmitting font data of characters or pictures desired by the user to the LED display device 37 connected to the USB port ( 31) and, A server computer 39 is used to communicate with a plurality of client computers 31 connected to the Internet network 38 and to distribute the latest version of the font manager program and font data to the client computer at the request of the user. The LED display device 37, A USB interface 45 for receiving a character or a picture desired by the user from the client computer 31 through the USB port, A memory for storing variable data created by recognizing font data of a character or a picture transmitted to a USB interface and a user's operation pattern; An adaptive controller 41 made of a microprocessor for pattern recognition and adaptive control to control the LED light emitter 44; Characters or pictures are displayed as afterimages, including a speed detector 43 for use in user's motion pattern recognition and for detecting the actual speed of motion. The speed detecting unit 43 includes a left limiting support 71, a right limiting support 76, a rail and a support 75, and a moving body 74 in the speed detecting module 77. 72) and a right optical output sensor (79), a left optical pickup sensor (73) and a right optical pickup sensor (78). delete  The method of claim 8 The client computer 31 downloads the font manager software or font data to the server computer 39 through the Internet network 38, performs the LED display device 37 recognition and the font manager software, and produces text or image fonts. Display device characterized in that for providing.  The method of claim 8 The server computer 39 has a web server function, which enables the user's connection to be accessed through an Internet network connection or an Internet mail connection of the client computer 31, and the distribution version of the font manager program of the client computer 31. A display device characterized in that it performs the process of automatically detecting and requesting the installation of a dedicated program, and automatically generates a character or a picture font at the request of the user and transmits it to the client computer (31).

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