KR20040018563A - The System of Host to Host Networking - Google Patents

Abstract

PURPOSE: A device for sharing an USB(Universal Serial Bus) typed host-to-host network is provided to enable a user to check a hardware connection state and a normal operation state by informing the connection state through an LED(Light Emitting Diode) and displaying a transmission state while the data is communicated. CONSTITUTION: Two USB ports(10,20) form a USB line. A power supply(200) uses the power from the USBs, prevents the inverse current flown to each computer device, and independently displays the normal connection state between the USB port and the USB port of a computer. A USB data processor(100) performs a data bridge role for a data line of the USB port by composing a microprocessor(102), a FIFO(First Input First Output)(106), a FIFO controller(103), and USB interfaces(104,105). LEDs(LED1-LED4) display the normal connection state of the USB port. Signal processors(40,60) generate a twinkling signal displaying the normal transmission state of the data.

Description

Universal Serial Bus Host-to-Host Networking Device {The System of Host to Host Networking}

The present invention relates to a networking system for sharing the Internet or sharing files by connecting between a PC and a PC to a Universal Serial Bus (USB) jack, which is set as a standard of an external interface of a PC. Conventional technologies for sharing between PCs include a LAN method or a serial method. Recently, there is also a wireless method, that is, a Bluetooth method or a wireless LAN method. According to the present invention, most of the existing methods require a physical device, that is, hardware, and therefore, there is inconvenience in that hardware installation is required. In addition, although a common matter is required, a process for installing an installation software is required. However, in the present invention, data sharing, file transmission and reception between different PCs can be performed simply by installing a simple drive, or software, in a PC using a PC external standard interface called USB. Technology. In order to enable PC-to-PC communication, a USB bridge controller must be inserted between USB and USB. This technology checks whether the USB jack is physically plugged into each PC by using the power supplied from both PCs with this bridge controller. It is a technology that integrates the function of displaying in response to the data when the data actually comes and goes after the PC is connected to the USB line on both sides.

The present invention focuses on the hardware installation and other complicated system setup process required for the file sharing and internet sharing between PCs so far, and the automatic installation by simply plugging in. Therefore, when the user connects the device of the present invention to a PC, it first informs the user whether it is properly connected in the form of LEDs, and when the data is coming and going, displaying the data transmission status. In addition to checking the status, it is possible to immediately know the operational status of settlement. In addition, the attributes of the present invention are not only completed by hardware but also by software. Therefore, an Internet sharing program based on NAT (Network Address Translation) is introduced.

1 is a system block diagram of the present invention.

Figure 2 is a data line response mode communication status display system of the present invention

3 is a GPIO communication status display system of the present invention

1 is a system block diagram of the present invention, there are USB jacks [10] and [20] for connecting to each computer side, and these USB jacks are usually composed of four signal lines, that is, a power supply, that is, a 5V port, a data positive port, and a data negative electrode. It consists of a port and a ground port. At the top of each of the USB jacks [10] and [20], + 5V power is supplied from the USB port of the PC. The power unit [200] is configured to use the power supplied from both PCs. OR logic sections [30], [50] for indicating data to and from the data lines of jacks [10] and [20], and integrators [40], [60] and the integration section for integrating high-speed data. It is composed of LED drive unit [300], [400] and LED unit [LED1], [LED4] to drive the LED using the output. In order to check whether the device of the present invention is properly connected to each PC, the LED drive unit [300], [+] received + 5V from the power ports [1] of both USB jacks [10] and [20]. 400] is configured to drive the control signal LED [LED2], [LED3] for the connection confirmation. Data lines [2] and [3] from each of the USB jacks [10] and [20] are USB interfaces, which are data processing units for transferring USB data to the FIFO (First In First Out) [106]. And [105], and the USB data from the USB interfaces [104] and [105] is transferred from both sides to the FIFO (First In First Out) [106] to perform bridge signal processing for branching data. Done. The data branching process using the first in first out (FIFO) is a USB data branching process by control signals of the microprocessor (MPU) 102 and the FIFO control unit [103].

Figure 2 shows a specific circuit configuration of the data line response communication status display system of the present invention. L1, L2, L3, and L4, which are configured on power line [1] and ground line [4] of USB jacks [10] and [20], respectively, are configured to suppress EMI noise radiated or excited toward the USB line. 10], [20], the DC voltage from the power supply line [1] passes through the diodes [D1] and [D2] via inductors [L1], [L3] to form a voltage in the DC power stabilization capacitor [C1]. do. At this time, the diodes [D1] and [D2] are connected to a USB bridge system, which is a device of the present invention between a PC and a PC, to prevent the power from being reversed from one side to the other when the power is simultaneously supplied from both PCs. Play a role. By using the DC power supply thus formed as a power supply voltage for operating the system of the present invention, a separate DC power supply device is not required. The power supply unit 200 has diodes [D1], [D2] and DC power supply stabilizing capacitor [C1] as main components. The DC power supply from the power supply unit 200 is used as a power source for the USB data processing apparatus [100] for branching USB data information. The crystal [101] coupled to the microprocessor [102] is used as a reference clock for the microprocessor to operate. Data lines [2] and [3] of the USB jack [10] are connected to the USB interface [104] of the USB data processing apparatus [100] via resistors [R5] and [R6]. Data lines [2] and [3] of 20] are connected to the USB interface 105 of the USB data processing apparatus [100] via resistors [R7] and [R8]. When the USB jack [10] is connected to the USB port on the PC side, power is supplied to the device of the present invention. This power is used to turn on the LED driving transistor [Q2] via the resistor [R2] to turn on the LED2. Recognize that the jack [10] is connected to the PC's USB port. At this time, the opposite side of the USB jack is blocked by diode [D2], so the LED3 on the other side does not light up. However, if the USB jack [20] is connected to the PC's USB port, a voltage is applied through the resistor [R3] so that the LED driving transistor [Q3] is turned on so that both are properly connected. The diodes [D1] and [D2] indicate that both sides have been considered to know whether or not they are connected to the USB jack independently. As described above, input data [2]. [3], which are data lines of USB jacks [10] and [20], to indicate that data is normally transferred through USB between PCs after the connection is completed in hardware. OR logic sections [30] and [50] were configured. The reason for the OR logic is to make it work if any of the data lines [2]. [3] have information. Since the signals passed through the OR logic [30] and [50] are fairly fast data, the integrators [40] and [60] have been constructed to make the flicker enough to be perceived by human eyes. The signal passing through the integrators [40] and [60] drives the data drive display LED drive transistors [Q1] and [Q4] to operate the data drive display LEDs [LED1] and [LED4]. Therefore, the two USB jacks of the present invention are configured to check whether two PCs are properly connected and whether the actual data is normally coming and going.

3 is a general purpose IO (GPIO) type communication status display system of the present invention, the part for checking whether two other PCs are normally connected to the USB jacks [10] and [20] mentioned in FIG. It is a structure that displays the communication status of data, and the general purpose IO (GPIO), or GPIO (General Purpose IO), is laid out from the microprocessor for controlling the first in first out (FIFO). An additional configuration of the drive [107] is configured to activate the data status display LEDs [LED1] and [LED4] by the LED driving transistors [Q3] and [Q2] via resistors [R3] and [R2], respectively. It was.

As described above, the power supply voltage for displaying the LED is used from the power supply unit 200, and when either one of both sides is connected to the PC, a DC voltage is formed in the power supply unit 200, and thus it is configured to use the same.

The present invention relates to a USB connection type network cable and a USB bridge hardware associated therewith that share the Internet, as well as the function of sharing and transmitting files between PCs via USB-USB, and the LAN method that has been generally used in the prior art There was a hassle to install a LAN card directly on the interface of PCI or PCMCIA. In the present invention, data communication and internet sharing are possible between PCs by simply installing software LAN drives on both PCs using the USB bridge technology. In addition, the display device and its associated drive unit are configured so that the user can be sure that the user is properly connected to the USB jack of the PC. Provide a great deal of convenience Technology.

Claims (2)

In the universal serial bus bridge networking method for computer-to-computer data communication using the universal serial bus, at least two universal serial bus ports for connecting and configuring a universal serial bus line and power from the universal serial bus side described above are used. A power supply for preventing reverse current from flowing into each computer device and independently indicating whether or not the computer is connected to the universal serial bus port of the computer, and the data line of the universal serial bus port. Universal serial bus data processing device whose main components are the microprocessor, FIFO control unit, FIFO unit, and universal serial bus interface for performing the bridge function of data, and the above-mentioned universal serial bus port. In order to check the status, the LED driver is connected through the current limiting resistor connected from each power line of the universal serial bus, the LED for indicating the normal connection status, the signal processing section and the current limiting resistor for indicating the normal transmission status of data. Universal serial bus type networking system, characterized in that the main configuration of the LED driving unit and the LED for data transmission status display. The universal serial bus network system according to claim 1, characterized in that a port for data transmission status display is provided at the microprocessor side in the universal serial bus data processing apparatus.