CN100416531C - Multifunctional universal serial bus wireless bridging device and system device - Google Patents

Abstract

The invention relates to a multifunctional universal serial bus wireless bridging device and a system device, which apply a bridging device with a USB host control function and a USB peripheral device function to bridge a wire signal transmitted by a USB into a wireless signal transmission, wherein an on-the-go (OTG) unit or a change-over switch is applied to select the USB host control function or the USB peripheral device function according to the type of a connected universal serial bus controller, thereby being convenient for a user to use.

Description

Multifunctional universal serial bus wireless bridge device and system device

technical field

The invention relates to a universal serial bus, in particular to a multifunctional universal serial bus wireless bridge device and a system device.

Background technique

The Universal Serial Bus (USB for short) is a connection interface applied to peripheral devices such as desktop computers, notebook computers and personal digital assistants (Personal Digital Assistant, PDA for short). Among them, due to its hot-swappable feature, users can easily add or remove their peripheral devices at will, and when adding or removing peripheral devices, they can automatically detect and maintain desktop computers, notebook computers and Normal functioning of personal digital assistants, etc. Therefore, the USB interface has been widely used in peripheral devices such as keyboards, mice, network cards, and printers. In addition, due to the convenience of adding or removing peripheral devices using the Universal Serial Bus interface to become computer peripherals, a storage device using the Universal Serial Bus interface has also been developed to facilitate data transfer between different computers. Transfer or Data Sharing.

Please refer to FIG. 1 , which is a connection diagram of a conventional USB system. As shown in the figure, in a computer supporting the Universal Serial Bus, a USB host controller (Host Controller) 110 is usually provided to control various USB peripheral devices (Device) connected thereto via USB cables. Wherein, as shown in the figure, the USB peripheral device 150 and the USB peripheral device 160 with OTG (On-The-Go, OTG for short) function are directly connected to the USB host controller 110, while the USB peripheral device 130 and the USB peripheral device 140 are It is then connected to the USB host controller 110 via the USB hub 120 . Wherein, no matter which connection method is used above, it is connected via a USB connection cable.

In order to provide users with a more convenient use environment, although there is a wireless connection method for specific types of USB peripheral devices, it cannot be used for different types of USB peripheral devices, and the title is "Method and apparatus for implementing a wireless universalserial U.S. Patent No. 5,890,015 for "bus host controller by interfacing a universal serial bus hubs a universal serial bus device", although it has provided a wireless connection architecture applicable to different USB peripheral devices, but it is necessary to use different devices to bridge the USB host Controllers and USB peripheral devices are still inconvenient for users.

It can be seen that the above-mentioned existing USB wireless bridge device obviously still has inconveniences and defects in structure and use, and needs to be further improved urgently. In order to solve the problems existing in the USB wireless bridge device, relevant manufacturers have tried their best to find a solution, but no suitable design has been developed for a long time, and there is no suitable structure for general products to solve the above problems. This is obviously a problem that relevant industry players are eager to solve.

In view of the defects existing in the above-mentioned existing USB wireless bridging device, the present inventor, based on years of rich practical experience and professional knowledge engaged in the design and manufacture of this type of product, and in conjunction with the application of academic theory, actively researches and innovates, in order to create a The multifunctional universal serial bus wireless bridge device and system device of a novel structure can improve the general existing universal serial bus wireless bridge device and make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects existing in the existing universal serial bus wireless bridging device, and provide a multifunctional universal serial bus wireless bridging device with a new structure, the technical problem to be solved is to make it conveniently The USB peripheral device is wirelessly bridged to the USB host controller, which is more suitable for practical use.

Another object of the present invention is to provide a universal serial bus system device. The technical problem to be solved is that it can conveniently bridge the USB peripheral device to the USB host controller via wireless mode, so that it is more suitable for practical use.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to the present invention, a multifunctional universal serial bus wireless bridge device is suitable for bridging a wired signal of a universal serial bus to a wireless signal, which includes: a serial interface engine for transmitting and receiving the wired signal signal; a wireless transceiver, used to transmit and receive the wireless signal; a universal serial bus host control unit, used to provide the universal serial bus host control function and the packet conversion function of the wired signal and the wireless signal; a universal The serial bus peripheral unit is used to provide the universal serial bus peripheral device function and the packet conversion function of the wired signal and the wireless signal; a first multiplexer is coupled to the serial interface engine and the universal serial bus host The control unit and the USB peripheral unit are used to select the data transmission path between the serial interface engine and the USB host control unit and the USB peripheral unit according to a selection signal; and a The second multiplexer is coupled to the wireless transceiver, the USB host control unit and the USB peripheral unit, and is used to select the wireless transceiver and the USB peripheral unit according to the selection signal The bus master control unit and the data transmission and reception path of the universal serial bus peripheral unit.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforesaid multi-functional USB wireless bridge device further includes a link-and-run unit, coupled to the serial interface engine, the first multiplexer, and the second multiplexer, for use in accordance with the serial interface A USB controller type connected to the engine to provide the selection signal.

In the aforementioned multifunctional USB wireless bridge device, the selection signal is provided by a switch.

The purpose of the present invention and the solution to its technical problems are also achieved by the following technical solutions. According to a kind of universal serial bus system device proposed by the present invention, it includes: a first universal serial bus controller; a first multifunctional universal serial bus wireless bridge device, coupled to the first universal serial bus controller device; a second universal serial bus controller; and a second multifunctional universal serial bus wireless bridge device, coupled to the second universal serial bus controller; wherein, the first multifunctional universal serial bus wireless The bridge device and the second multifunctional USB wireless bridge device respectively include: a serial interface engine for transmitting and receiving a wired signal; a wireless transmitter and receiver for transmitting and receiving a wireless signal; a universal serial bus The bus master control unit is used to provide the universal serial bus master control function and the packet conversion function of the wired signal and the wireless signal; a universal serial bus peripheral unit is used to provide the universal serial bus peripheral device function and the wired signal and the packet conversion function of the wireless signal; a first multiplexer, coupled to the serial interface engine, the USB host control unit and the USB peripheral unit, for selecting according to a selection signal The data transmission path of the serial interface engine and the USB host control unit and the USB peripheral unit; and a second multiplexer, coupled to the wireless transceiver, the USB host The control unit and the USB peripheral unit are used to select the data transmission path between the wireless transceiver and the USB host control unit and the USB peripheral unit according to the selection signal.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned universal serial bus system device, wherein the first multi-functional universal serial bus wireless bridge device and the second multi-functional universal serial bus wireless bridge device further include an online and run unit, coupled to the serial The interface engine, the first multiplexer and the second multiplexer are used to provide the selection signal according to the type of the USB controller connected to the serial interface engine.

In the aforementioned USB system device, the selection signals are respectively provided by a switch.

In the aforementioned USB system device, the first USB controller is a USB host controller, and the second USB controller is a USB peripheral device.

In the aforementioned USB system device, the first USB controller is a USB host controller, and the second USB controller is a USB hub.

In the aforementioned USB system device, the first USB controller and the second USB controller are both a USB host controller.

Compared with the prior art, the present invention has obvious advantages and beneficial effects. As can be seen from the above technical solutions, in order to achieve the aforementioned object of the invention, the main technical contents of the present invention are as follows:

The invention provides a multifunctional universal serial bus wireless bridge device, which is suitable for bridging wired signals of the universal serial bus into wireless signals. This multifunctional USB wireless bridge device includes: serial interface engine (Serial Interface Engine), wireless transceiver, USB host control unit, USB peripheral unit, first multiplexer and second multitasker. Wherein, the serial interface engine is used for transmitting and receiving the wired signal of the universal serial bus. The wireless transceiver is used for transmitting and receiving wireless signals, and the USB host control unit is used for providing USB host control functions and packet conversion functions between wired signals and wireless signals. The USB peripheral unit is used to provide the function of the peripheral device of the USB and the packet conversion function between the wired signal and the wireless signal. The first multiplexer is coupled to the serial interface engine, the USB host control unit, and the USB peripheral unit, and is used to select the serial interface engine, the USB host control unit, and the USB peripheral unit according to a selection signal. The data transmission and reception path of the serial bus peripheral unit. The second multiplexer is coupled to the wireless transceiver, the USB host control unit and the USB peripheral unit, and is used to select the wireless transceiver and the USB host control unit according to the aforementioned selection signal And the data transmission and reception path of the universal serial bus peripheral unit.

In a preferred embodiment of the present invention, the multifunctional USB wireless bridge device further includes an ON-THE-GO unit coupled to the serial interface engine, the first multiplexer and the second The multiplexer is used for providing the aforementioned selection signal according to the type of the USB controller connected to the serial interface engine. That is to say, when the serial interface engine is connected to the USB host controller, the selection signal controls the first multiplexer and the second multiplexer, so that the serial interface engine and the transmission path of the wireless transceiver are connected to the Universal Serial Bus peripheral unit. And when the serial interface engine is connected to the universal serial bus peripheral device, the selection signal controls the first multiplexer and the second multiplexer, so that the transmission and reception paths of the serial interface engine and the wireless transceiver are connected to the universal serial bus Host control unit. Wherein, the selection signal can also be provided by a switch.

The present invention also provides a universal serial bus system using the aforementioned multifunctional universal serial bus wireless bridge device, including: a first universal serial bus controller, a first multifunctional serial bus coupled to the first universal serial bus controller The USB wireless bridge device, the second USB controller, and the second multifunctional USB wireless bridge device coupled to the second USB controller.

In a preferred embodiment of the present invention, the first multifunctional USB wireless bridging device and the second multifunctional USB wireless bridging device can be respectively connected to a USB host controller and a USB The peripheral device can also be connected to the USB host controller and the USB hub respectively, or even be connected to two USB host controllers respectively, so as to realize connection and communication between different USB devices.

By virtue of the above-mentioned technical solution, the multifunctional USB wireless bridge device and the system device of the present invention have at least the advantage that a single multifunctional USB wireless bridge device can be used to conveniently connect USB peripheral devices via wireless Bridged to the USB host controller for user convenience.

To sum up, the multi-functional USB wireless bridge device and system device with a special structure of the present invention can conveniently bridge the USB peripheral device to the USB host controller via wireless mode. It has the above-mentioned advantages and practical value, and there is no similar structural design publicly published or used in similar products, so it is indeed innovative. It has a large improvement in both the structure and function of the product, and it is technologically advanced. It has made great progress, and has produced easy-to-use and practical effects, and has improved multiple functions compared with the existing universal serial bus wireless bridge device, so it is more suitable for practical use, and has wide application value in the industry. Sincerely A novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram showing the connection of a conventional USB system.

FIG. 2 is a schematic diagram showing the connection of the USB system according to a preferred embodiment of the present invention.

FIG. 3 is a schematic block diagram showing a multifunctional USB wireless bridge device according to a preferred embodiment of the present invention.

110, 210, 211: USB host controller

120, 220: USB hub

130, 140, 150, 230, 240, 250: USB peripherals

160, 260: USB peripheral device with OTG function

212, 213, 214, 215, 216, 300: multifunctional USB wireless bridge device

310: Serial Interface Engine 320: First Multiplexer

330: USB host control unit 340: USB peripheral unit

350: Second multitasking device 360: Wireless transceiver

370: Online and Run Units

Detailed ways

In order to further illustrate the technical means and effects that the present invention takes to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the multifunctional Universal Serial Bus wireless bridge device and system device proposed according to the present invention are specifically implemented Mode, structure, feature and effect thereof are as follows in detail.

Please refer to FIG. 2 , which is a schematic diagram showing the connection of the USB system according to a preferred embodiment of the present invention. The difference from FIG. 1 is that between the USB host controller 210, the USB hub 220, the USB peripheral device 250, and the USB peripheral device 260 with OTG function, a multi-functional USB wireless bridge device 212, 214, 215 is used respectively. and 216, to bridge the existing USB wired signal connected with the USB cable into a wireless signal for communication, and under the existing USB protocol framework, the computer (not shown) with the USB host controller 210 can be set communicate with the USB peripheral devices 230 , 240 , 250 and the OTG-enabled USB peripheral device 260 respectively. In addition, the USB system of FIG. 2 further includes a USB host controller 211 installed on another computer (not shown in the figure), which can also communicate with the USB host controller 213 via a multi-function USB wireless bridge device 213. Host controller 210 computer communication. Of course, the communication in this situation must be provided on the computers with the USB host controllers 210 and 211 respectively, and the driver software specially for computer-to-computer communication via USB is available.

In FIG. 2 , the solid connection lines represent USB connection lines, and the dotted lines between the multi-function USB wireless bridge devices 212 , 213 , 214 , 215 and 216 represent no connection lines. Therefore, the communication between the USB host controller 210 and the USB host controller 211, the USB hub 220, the USB peripheral device 250 and the USB peripheral device 260 with OTG function is via the multifunctional USB wireless bridge devices 212, 213, 214. , 215 and 216 are achieved by bridging the wired signal of the USB to the wireless signal. Therefore, the multifunctional USB wireless bridge devices 212, 213, 214, 215, and 216 must have both the USB host control function and the USB peripheral device function, and its function selection can be to use the ON-THE -GO, referred to as OTG) protocol to automatically select, as shown in the figure, the multifunctional USB peripheral device 260 with OTG function USB peripheral device 260 can be automatically selected to operate in the host mode (Host Mode). Its function selection can also be manually selected by switching switches, such as the multi-functional USB wireless bridge devices 212 and 213, because they are connected to the USB host controllers 210 and 211 respectively, so they should be selected to operate in the peripheral device mode (Device Mode ), and the multifunctional USB wireless bridge devices 214 and 215 are respectively connected to the USB hub 220 and the USB peripheral device 250, so they should be selected to operate in the host mode.

During operation, a small wireless network will be formed among the multifunctional USB wireless bridge devices 212, 213, 214, 215, and 216, which can transmit wireless network packets to each other through a designated network identification code (ID). purpose, and convert the received wireless network packets into USB protocol packets for transmission. Among them, in order to comply with the requirements of the relevant response delay specifications in the USB protocol, the multi-functional USB wireless bridge devices 212, 213, 214, 215, and 216 must first respond to the approval/disapproval (ACK/NACK) when receiving the USB protocol packet. ) packet to the USB bus. Of course, as known to those skilled in the art, although a more complicated system structure is illustrated in FIG. 2 , a simple system with separate applications at both ends of the dotted line shown in FIG. 2 is also feasible.

Please refer to FIG. 3 , which is a schematic block diagram of a multifunctional USB wireless bridge device according to a preferred embodiment of the present invention. As mentioned above, the multifunctional universal serial bus (USB) wireless bridge device 300 must have both the USB host control function and the USB peripheral device function, therefore, the multifunctional universal serial bus (USB) wireless bridge device 300 includes a USB The bus (USB) host control unit 330 and the universal serial bus (USB) peripheral unit 340 are used to provide the USB host control function and the USB peripheral device function respectively. In addition, it can also provide wired signals and wireless Packet conversion function between signals.

In addition, the multifunctional universal serial bus (USB) wireless bridge device 300 also includes: a serial interface engine (Serial Interface Engine) 310, a wireless transceiver 360, a first multiplexer 320, a second multiplexer 350 and a connection That is, the ON-THE-GO unit 370 is run.

Among them, the serial interface engine 310 is used to transmit and receive the wired signal of the universal serial bus, the wireless transmitter and receiver 360 is used to transmit and receive the wireless signal of the bridge, and the online operation unit 370 is coupled to the serial interface engine 310, the first multiple The tasker 320 and the second multiplexer 350 are used to provide a selection signal sel according to the type of the USB controller connected to the serial interface engine 310 .

The first multiplexer 320 is coupled to the serial interface engine 310, the Universal Serial Bus (USB) host control unit 330 and the USB peripheral unit 340, for selecting according to the selection signal sel provided by the link-to-run unit 370. Data transmission and reception paths between the serial interface engine 310 and the USB host control unit 330 and the USB peripheral unit 340 . The second multiplexer 350 is coupled to the wireless transceiver 360, the USB host control unit 330 and the USB peripheral unit 340, and is used to perform the selection according to the selection signal sel provided by the link-to-run unit 370. A data transmission and reception path between the wireless transceiver 360 and the USB host control unit 330 and the USB peripheral unit 340 is selected. Of course, as those skilled in the art know, the selection signal sel in the figure can also be provided manually by a switch (not shown in the figure).

For example, when the serial interface engine 310 is connected to the USB host controller 210 as shown in the multifunctional USB wireless bridge device 212 of FIG. 2 , the selection signal sel will control the first multiplexer 320 and the second multiplexer The tasker 350 connects the receiving path of the serial interface engine 310 and the wireless transceiver 360 to the USB peripheral unit 340 , and selects to operate the USB peripheral device function. In addition, when the serial interface engine 310 is connected to the USB peripheral device 250 such as the multifunctional USB wireless bridge device 215 in FIG. 2 , the selection signal sel will control the first multiplexer 320 and the second multiplexer 350 , connect the transmitting and receiving paths of the serial interface engine 310 and the wireless transceiver 360 to a universal serial bus (USB) host control unit 330 , and select to operate in the USB host control function. Therefore, a single multifunctional USB wireless bridge device can be used to conveniently bridge the USB peripheral device to the USB host controller via wireless mode, which is convenient for users to use.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solutions of the present invention.

Claims (7)

1. A multifunctional universal serial bus wireless bridging device, suitable for bridging a wired signal of a universal serial bus to a wireless signal, characterized in that it comprises: a serial interface engine for transmitting and receiving the wired signal; a wireless transceiver for transmitting and receiving the wireless signal; A universal serial bus host control unit, used to provide the universal serial bus host control function and the packet conversion function of the wired signal and the wireless signal; A universal serial bus peripheral unit, which is used to provide the universal serial bus peripheral device function and the packet conversion function of the wired signal and the wireless signal; A first multiplexer, coupled to the serial interface engine, the USB host control unit and the USB peripheral unit, for selecting the serial interface engine and the USB peripheral unit according to a selection signal The data transmission and reception paths of the row bus host control unit and the universal serial bus peripheral unit; A second multiplexer, coupled to the wireless transceiver, the USB host control unit and the USB peripheral unit, for selecting the wireless transceiver and the USB peripheral unit according to the selection signal The data transmission and reception paths of the row bus host control unit and the universal serial bus peripheral unit; and An on-line running unit, coupled to the serial interface engine, the first multiplexer and the second multiplexer, is used to provide the serial interface engine according to a type of USB controller connected to the serial interface engine. Select a signal. 2. The multifunctional USB wireless bridge device according to claim 1, wherein the selection signal is provided by a switch. 3. A universal serial bus system device, characterized in that it comprises: a first universal serial bus controller; A first multifunctional USB wireless bridge device, coupled to the first USB controller; a second universal serial bus controller; and A second multifunctional USB wireless bridge device, coupled to the second USB controller, and communicates with the first multifunctional USB wireless bridge device wirelessly; Wherein, the first multifunctional USB wireless bridging device and the second multifunctional USB wireless bridging device respectively include: a serial interface engine for sending and receiving a wired signal; A wireless transceiver for transmitting and receiving a wireless signal; A universal serial bus host control unit, used to provide the universal serial bus host control function and the packet conversion function of the wired signal and the wireless signal; A universal serial bus peripheral unit, which is used to provide the universal serial bus peripheral device function and the packet conversion function of the wired signal and the wireless signal; A first multiplexer, coupled to the serial interface engine, the USB host control unit and the USB peripheral unit, for selecting the serial interface engine and the USB peripheral unit according to a selection signal The data transmission and reception paths of the row bus host control unit and the universal serial bus peripheral unit; and A second multiplexer, coupled to the wireless transceiver, the USB host control unit and the USB peripheral unit, for selecting the wireless transceiver and the USB peripheral unit according to the selection signal The data transmission and reception paths of the row bus host control unit and the universal serial bus peripheral unit; and An on-line running unit, coupled to the serial interface engine, the first multiplexer and the second multiplexer, is used to provide the serial interface engine according to a type of USB controller connected to the serial interface engine. Select a signal. 4. The USB system device according to claim 3, wherein the selection signals are respectively provided by a switch. 5. The USB system device according to claim 3, wherein the first USB controller is a USB host controller, and the second USB controller The device is a universal serial bus peripheral device. 6. The USB system device according to claim 3, wherein the first USB controller is a USB host controller, and the second USB controller The device is a Universal Serial Bus hub. 7. The universal serial bus system device according to claim 3, wherein the first universal serial bus controller and the second universal serial bus controller are both controlled by a universal serial bus master device.

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