KR101111614B1 - Ultra wide band wireless transmitter-receiver composed of host and docking device - Google Patents

Abstract

The ultra-wideband wireless transceiver of the present invention comprises a docking device connected to a host device and a peripheral device connected to a computer, and the printed circuit board of the docking device is equipped with a Ubi module connected to an antenna connection terminal and an antenna connection terminal. And, the antenna connection terminal is characterized in that consisting of the coaxial connection terminal so that the coaxial antenna can be directly connected.
Since the ultra-wideband wireless transceiver of the present invention is equipped with an antenna connection terminal to which a coaxial antenna can be directly connected to a printed circuit board of a docking device, the antenna can be connected without soldering or the like. Therefore, when the docking device is embedded in the display device, the connection work of the external antenna is easy, and when the special device is manufactured, the connection part is shortened by a simple wire extension, thereby preventing the inflow of external noise signals and increasing the sensitivity.

Description

Ultra wide band wireless transmitter-receiver composed of host and docking device}

The present invention relates to an ultra-wideband radio transceiver, and more particularly, to an ultra-wideband radio transceiver for transmitting and receiving data in both directions by a host device connected to a computer and a docking device connected to a peripheral device.

In the early stages of the development of computer technology, the functions of computers were limited enough to calculate and process externally accepted information and display it on a display device. However, as computer computing power and storage capacity have been improved, and various kinds of digital electronic devices have been developed, computers and peripheral devices are connected to each other to communicate in one or two directions, and the area of use of computers is expanding. Peripheral devices such as display devices, external storage media, audio devices, digital cameras, etc. are generally connected to the computer through wired terminals. When peripheral devices are connected to the computer by wire, installation of peripheral devices is cumbersome and movement range is limited. Occurs. In particular, as the use of portable computers such as laptops and netbooks is becoming more common recently, when performing a simple document operation without connecting a peripheral device, or performing a presentation or searching the Internet, a projector display device or a wireless Internet device may be connected. It is often the case that various tasks are performed. In this case, each peripheral device has to be cumbersome to be connected to a portable computer each time, and space is limited by a line connecting the display device and the computer. Therefore, there is a growing need to develop a wireless transceiver having various connection terminals capable of wirelessly connecting a computer and a peripheral device.

The ultra wide band (hereinafter referred to as UWB) was introduced to the world in February 2002 by the Federal Communications Commission (FCC) allocating the 7.5 GHz spectrum (3.1 to 10.6 GHz) for UWB devices. I lost. The unique advantages of UWB signaling, which can operate on the noise floor, allow UWB devices to share spectrum while peacefully coexisting with existing wireless services, but the UWB link spans 10 meters due to the low FCC-approved transmit power. It has been reduced to a degree, so its use is limited to wireless personal area networking (WPAN). However, the FCC approved UWB spectrum allocation and transmit power constraints, but did not specify air interface, modulation, or media access controller (MAC) specifications. UWB can achieve ultra-high speed communications at speeds above 100 Mbps, typically in the 3.1G to 10.6 GHz band, and at lower powers than the FCC's Part 15's Effective Isotropical Radiated Power (EIRP) standards over a very broad band over the existing spectrum. Ultra high-speed transmission of up to 1Gbps can be achieved at a short distance, and output power can be lowered, thereby improving energy use efficiency without a power amplifier. In addition, it is possible to cope with various problems of multipath fading, and it is known that the distance between devices can be calculated with a precision of about several centimeters from the pulse arrival time, and thus it is known that it can be utilized in the location-based low power Ad-Hoc network.

Applying UWB technology to a Wireless Personal Area Network (WPAN) can eliminate or simplify the wires from a computer to peripherals, also known as wireless USB. Wireless USB has a long range of wireless communication distance than wireless HDMI, and its manufacturing cost is lower than that of wireless HD. However, in the conventional wireless USB device, since the antenna connection terminal connected to the UWB module is not separately installed, the antenna has to be connected manually by soldering or the like. Therefore, when the wireless USB device is embedded in a display device, the connection work of the external antenna is cumbersome, the production cost may increase, and the defective rate may be increased. If the length of the antenna connection is longer, the reception sensitivity may be lowered due to the inflow of external signals. In addition, even when manufacturing a wireless USB device having a separate outer case, when a specific external antenna is connected as necessary, the soldering work is involved in removing the original antenna from the antenna connection part and connecting the external antenna newly. It should be.

Therefore, the problem to be solved by the present invention is to provide an ultra-wideband wireless transceiver that can be cooled by a natural convection method, while the connection operation of the antenna is simple, the audio output is possible without the connection of the audio device.

The present invention provides an ultra-wideband wireless transceiver comprising a docking device connected to a host device and a peripheral device connected to a computer, the docking device is a coaxial connection terminal for performing wireless communication with the host device UWB module connected to the coaxial antenna, another UWB module mounted on the preliminary UBB terminal, received from the at least one UWB module It includes a hub for distributing the signal to the image processing module or a peripheral device connection terminal, a speaker capable of outputting audio and a printed circuit board and the speaker, and an air inlet and an air outlet.

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Since the ultra-wideband wireless transceiver of the present invention is equipped with an antenna connection terminal to which a coaxial antenna can be directly connected to a printed circuit board of a docking device, the antenna can be connected without soldering or the like. Therefore, when the docking device is embedded in the display device, the connection work of the external antenna is facilitated and the connection part is shortened so that the sensitivity of the external noise signal can be prevented from increasing.

In addition, the ultra-wideband wireless transceiver of the present invention is provided with a speaker in the docking device can output voice even without a separate audio device, the cold air sucked into the air inlet formed on the lower case of the upper portion Since the air outlet of the convection can be naturally convection, the module can be cooled without using a separate cooling fan.

1 shows an ultra-wideband wireless transceiver of the present invention.
2 is a view for explaining the function of the ultra-wideband wireless transceiver of the present invention.
Figure 3 shows the antenna connection terminal of the ultra-wideband wireless transceiver of the present invention.
4 is a view for explaining the natural convection cooling method of the ultra-wideband wireless transceiver of the present invention.
5 is a circuit block diagram of the ultra-wideband wireless transceiver of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail.

The ultra-wideband wireless transceiver of the present invention comprises a docking device connected to a host device and a peripheral device connected to a computer, and the printed circuit board of the docking device is equipped with a Ubi module connected to an antenna connection terminal and an antenna connection terminal. And, the antenna connection terminal is characterized in that consisting of the coaxial connection terminal so that the coaxial antenna can be directly connected.

The ultra-wideband wireless transceiver of the present invention comprises a host device and a docking device. The host device is connected to a USB terminal of a computer, and the RF device transmits and receives information stored in the computer to the docking device while receiving the information transmitted from the docking device. . The information stored in the computer is divided into video information and audio information and transmitted in a compressed packet state, and the hub of the docking device reads a header recorded in the packet and outputs the packet to the corresponding connection terminal.

1 illustrates an ultra-wideband wireless transceiver according to an embodiment of the present invention. Referring to FIG. 1A, the ultra wideband wireless transceiver includes a docking device 100 and a host device 200. The front of the docking device 100, the volume control knob 101, the USB connector 102, the audio connector 103 and the microphone connector 104 is formed, the side portion of the speaker 105 is formed have. The host device 200 includes a USB connection terminal 201, a body 202, and a transmission / reception antenna 203. In addition, referring to FIG. 1B, an antenna 106 capable of transmitting / receiving RF is formed on a rear portion of the docking device 100, and a USB connection terminal 102, an Ethernet connection terminal 109, and a display are formed on the rear portion of the docking device 100. The connection terminal 110 and the power connection unit 108 are formed, and the air outlet 107 is formed at the top. The antenna of the docking device may be directly connected to an antenna connection terminal mounted on a printed circuit board. The antenna connection terminal will be described in more detail with reference to FIG. 3.

The USB connector can be connected to a memory, mouse, printer, or touchpad type input device, and by connecting the wireless Internet card with an RJ45 cable to the Ethernet connector, the computer can use the wireless Internet. The audio connection terminal may be connected to a separate audio device provided with an amplifier, the microphone terminal may be output by transmitting a voice to a computer or by transmitting a voice to a speaker. In addition, since the internal speaker is formed on the side portion, it is possible to output voice without a separate audio device.

2 is a view for explaining the function of the ultra-wideband wireless transceiver of the present invention. Referring to FIG. 2, a host device 200 is connected to a computer USB terminal of a laptop or the like, and peripheral devices such as a display device, an audio device, and a wireless Internet device are connected to the docking device 100. The host device 200 and the docking device 100 transmit and receive radio waves in an ultra-wide band, and transmit and receive data between a computer and a peripheral device in both directions. According to one embodiment of the invention, the sensitivity of the host device and the docking device (sensitivity) is less than -75dBm, Tx power (Tx power) is less than -41.3dBm. With this sensitivity and Tx power, large and high quality data can be transmitted within 10m. Such a data transmission distance corresponds to a specification capable of sufficiently transmitting display information in a general presentation space, and is also advantageous for security of information because the data transmission distance is not too long. The antenna constituting the RF transmitter / receiver can achieve a maximum transmission speed of ~ 210Mbps when using one, and twice the transmission speed when using two, and this transmission rate is a full H. It corresponds to the speed at which full HD) video can be transmitted without interruption.

Figure 3 shows the antenna connection terminal of the ultra-wideband wireless transceiver of the present invention. Referring to (a) of FIG. 3, the printed circuit board 400 of the docking device includes an antenna connection terminal 401, a UBE module 402, a hub 409, an image processing module 407, and a peripheral device connection terminal. 403, 404, 405 and 406 are mounted. An antenna is connected to the antenna connection terminal 401 to allow the UBI module 402 to receive a signal, and the hub 409 transmits a signal of the UBE module 402 to peripheral device connectors 403, 404, and the like. 405 and 406, and the image processing module 407 compresses the video signal distributed from the hub 409, and the peripheral device connection terminals 403, 404, 405 and 406 distribute the signal from the hub 409. To the peripheral device. In the printed circuit board 400, a preliminary UBI module terminal 408 is formed, and when the UUU module is mounted in the preliminary UBI module terminal, data signals may be divided and transmitted, thereby providing a super wideband wireless transceiver. It can improve the transmission speed. That is, for example, the UBI module 402 may be dedicated to the transmission of the video signal, and the UBE module connected to the preliminary UBI module terminal 408 may be dedicated to the transmission of other signals. The preliminary UBI module terminal 408 may be connected to a patch antenna. The antenna connection terminal 401 is connected to the UBD module 402 and is fixed to the printed circuit board. Since the antenna connection terminal 401 is made of a coaxial connection terminal, the connection work of the coaxial antenna is easy and the replacement connection to another antenna is free. Referring to Figure 3 (b), it can be seen that the coaxial antenna 410 and the antenna connection terminal 401 can be fastened through the screw coupling is very easy to assemble and dismantle.

In this way, when the antenna connection terminal is provided on the printed circuit board, the connection operation of the antenna is simplified and productivity is improved, and the docking device is easily embedded in an external device such as a display device. The docking device may be manufactured as a product having a separate outer case, but in some cases, the docking device may be embedded in a display device such as a digital TV. When the docking device is built in the digital TV, the docking device receives an external signal through wireless communication. This can prevent the signal cable from being exposed to the outside. If the antenna connection terminal is not mounted on the printed circuit board of the docking device, the antenna must be connected by soldering, etc. during the assembly of the display device, which can be cumbersome and increase the production cost. In the case where e becomes long, it is difficult to effectively shield external signals, and thus a noise signal may flow into the ubi-ubi module. However, when the antenna connection terminal is provided on the printed circuit board, the antenna can be easily assembled by screwing the screw, and the exposure of the connection portion can be minimized, thereby preventing the inflow of external noise, The position of the double UBI module and the position of the antenna exposed to the outside of the display device can be freely adjusted. In addition, even when the ultra-wideband wireless transceiver of the present invention is applied to the electronic teaching system, the antenna can be installed at a desired position of the electronic teaching table, and the antenna can be connected to the antenna connection terminal of the docking device by using a coaxial cable, thereby improving product adaptability. do.

The printed circuit board of the docking device is coupled with a semiconductor device such as a UBE module and an image processing module, so that heat is generated during operation. When heat occurs in a semiconductor device and the temperature rises above a certain range, the probability of occurrence of thermal noise increases, which increases the possibility of error in data processing. Therefore, cooling means are required to maintain the operating temperature of the semiconductor device in a certain range. For example, in the case of a computer, a fan is installed inside to cool heat generated in a semiconductor device. In the case of a docking device, if the heat generated is not sufficiently removed, an error may occur in data transmission or the transmission speed may decrease. When removing heat from a semiconductor device by using a separate cooling fan, a certain level of noise is caused and the volume of the product is increased due to the installation of the cooling fan. Therefore, in the present invention, the air inlet and the air outlet are formed on the outer case of the docking device, and the shape of the outer case is designed to effectively cool the semiconductor element by natural convection, and the positions of the air inlet and the outlet are adjusted.

4 is a view for explaining the natural convection cooling method of the ultra-wideband wireless transceiver of the present invention. Referring to Figure 4, the outer case of the docking device has a constant thickness shorter than the length or width of the side portion, the upper portion (a) is a fan shape, the lower portion (b) maintains the radial width of the fan shape and the bottom It is shaped to extend. In addition, a printed circuit board 305 patterned along the shape of the outer case is positioned inside the outer case 301, and a plurality of electronic devices including the UBE module 304 are coupled to the printed circuit board 305. have. An air inlet 302 is formed at one lower end of the outer case 301, and an air outlet 303 is formed at one end of the outer case 301. Natural convection of air is achieved by moving heated air upwards and cooled air downwards. When the docking device transmits and receives data and the temperature of the semiconductor device rises, the heated air inside the outer case is discharged to the outside along the air outlet, and cold outside air is introduced from the air inlet due to the decrease in pressure. At this time, since the upper portion of the outer case of the docking device is formed in a fan shape, cold air introduced from the air inlet is discharged to the air outlet along a fan-shaped arc, thereby creating a natural air flow path, and generating heat in the middle of the air flow path. This is the largest Ubi module. In the present invention, the shape of the outer case and the positions of the air inlets and outlets are specifically limited so that the UBI module of the docking apparatus can be cooled without a separate cooling fan.

5 is a circuit block diagram of the ultra-wideband wireless transceiver of the present invention. Referring to FIG. 5, a circuit of a host device includes an RF transceiver connected to an antenna and other devices, and the docking device includes an RF transceiver connected to an antenna, a hub, a memory, a graphic main chip set and a display link series, a USB audio system, It consists of USB and other devices. The host device transmits the compressed data in packet units to the docking device through the RS transceiver. On the contrary, when data is transmitted to the host device through the docking device, the data is received from the RF transceiver of the host device and the data is transmitted to the computer through the USB terminal and the computer processes the transmitted information. The docking device receives data transmitted and compressed in packet units from the host device through the RF transceiver, and the hub recognizes the header recorded in the packet and outputs the graphic main chip set or each connection terminal according to the type of data. In addition, when the docking device transmits data to the host device, the hub may process information input through the USB connection terminal or the Ethernet connection terminal in the hub and transmit the data to the host device through the transceiver. Since the docking device of the present invention classifies a data packet from the hub and outputs the data packet to each connection terminal, the docking device may receive image information and other information together through one RF transceiver.

So far, the present invention has been described with reference to the drawings in accordance with one embodiment of the present invention. It is obvious that the scope of the present invention is not limited to the drawings or the description of the drawings, but the scope of the claims will be interpreted only by the matters described in the claims.

100: docking device 101: volume control knob
105: speaker 106: antenna
110: display connector 200: host device
302: air inlet 303: air outlet
400: printed circuit board 402: UBE module
401: antenna connector 410: antenna

Claims (3)

An ultra-wideband wireless transceiver comprising a host device connected to a computer and a docking device connected to a peripheral device,
The docking device may be a UWB module connected to a coaxial antenna through a coaxial connection terminal to perform wireless communication with the host device.
Another UWB module which is mounted on the spare UB module terminal,
A hub for distributing signals received from the at least one UWB module to an image processing module or a peripheral device connection terminal;
Speaker that can output voice and
An ultra-wideband wireless transceiver for fixing a printed circuit board and a speaker and including an outer case in which an air inlet and an air outlet are formed. delete delete

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