CN2819301Y

CN2819301Y - USB multifunctional mouse

Info

Publication number: CN2819301Y
Application number: CNU2005200099511U
Authority: CN
Inventors: 邝育军; 陈前斌; 隆克平
Original assignee: Chongqing University of Post and Telecommunications
Current assignee: Chongqing University of Post and Telecommunications
Priority date: 2005-09-13
Filing date: 2005-09-13
Publication date: 2006-09-20
Anticipated expiration: 2015-09-13

Abstract

The utility model provides a USB multifunctional mouse which relates to a novel USB end instrument. The utility model sufficiently extends the latent capacity of a USB bus and puts a USB port in a very important position. The front end of a USB interface circuit of a traditional USB mouse is integrated with a USB concentrator, and the USB concentrator is provided with at least two descending ports. An ascending port of the USB concentrator is connected with a USB plug through the USB bus and is then connected with the USB interface of a computer. The descending ports of the USB concentrator are respectively connected with the input ends of USB interface circuits of end instruments such as a USB mouse, a USB wireless Ethernet card, a USB storage device, etc. The remainder descending ports can be connected to a USB extension port. The utility model provides a USB multifunctional mouse which integrates a wireless local network card, a USB storage function, etc., extends the USB port and sufficiently utilizes limited USB port resources.

Description

The USB multifunctional mouse

Technical field

The utility model relates to a kind of novel usb terminal equipment.

Background technology

Existing most of mouse function is single, although existing many multifunctional mouse schemes propose, but the main man-machine input function that on the basis of conventional mouse, increases other, as handwriting functions etc., fundamental purpose is to strengthen its convenience or strengthen its function, does not all change mouse functional as input equipment.

The prior USB mouse occupies a USB port usually for a long time fully, be 127 (USB1.1 standards) to the maximum and in fact simultaneously can refute the number of devices that connects on the usb bus, the real work speed of mouse is extremely low, fail fully to excavate the potentiality of usb bus, and because the USB port of most of main frame only is about two, make the USB resource deficient relatively, so the usb bus resource of main frame is necessary further development and use.

New business demand and movability require to have promoted the high speed development of radio communication, although therefore cable LAN has the bandwidth of almost using not to the utmost, WLAN (wireless local area network) also enjoys favor, and development is equipped notebook computer on a large scale such as IEEE802.11b, IEEE802.11g etc. rapidly.But also must perhaps occupy the USB port mode and connect equipment such as network interface card by the mainboard plug-in card for desktop computer, workstation.Because the USB port number limited (being mainly used in mouse and movable storage device) on most of desktop computer, and the slot on the mainboard occupies by other functional apparatus, and it is very big to popularize the WLAN (wireless local area network) difficulty.

Summary of the invention

The utility model is primarily aimed at the problems referred to above, but utilize the extended attribute of usb bus on the basis of USB mouse, to expand, a kind of USB port of reusing is disclosed, increase Wireless Communication Equipment and USB memory device, thereby the Multifunctional USB mouse of functions such as wireless LAN card and usb hub is provided.

The technical scheme that the utility model solves the problems of the technologies described above is, front end integration USB hub at the usb circuit of traditional USB mouse, usb hub comprises two downlink ports at least, the uplink port of usb hub is connected to the USB plug of computer terminal by usb bus, and one of them connects USB mouse module in the downlink port of usb hub.After having connected the USB mouse module, all the other downlink ports of usb hub connect USB wireless ethernet card module and USB memory device or one of them respectively, and described USB wireless ethernet card module, USB memory device are installed in the inside free space of Multifunctional USB mouse.When having connected the USB mouse module, behind USB wireless ethernet card module, the USB memory device,, then it is electrically connected on the USB Extended Capabilities Port that is positioned on the shell if described usb hub also has remaining downlink port.

This Multifunctional USB mouse of the utility model design increases usb hub with expansion USB resource on the basis of traditional USB mouse, the downstream interface of this hub can connect USB wireless ethernet card, USB memory device etc.; Utilize the utility model to be easy to realize wireless quickly networking, and do not need to take USB resource extra on the computer port; The utlity model has the portable hard drive of a constant volume, both can be used as mobile dump, also can be used to carry the driver of wireless ethernet card, the convenient use; The USB port that expands also can be used for refuting other usb terminal equipment that connects.

Description of drawings

Fig. 1 is a circuit logic theory diagram of the present utility model

Fig. 2 is the basic circuit theory diagram of traditional USB mouse

Fig. 3 is the theory diagram of usb hub module in the multifunctional mouse

Fig. 4 is logical circuit of the present utility model and connection layout

Fig. 5 is the basic circuit logical diagram of USB wireless network card

Fig. 6 is the electrical schematic diagram of USB portable hard drive

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples

Accompanying drawing 2 is depicted as the basic logical structure of traditional USB mouse.Usb circuit 4-1 wherein is responsible for the data transmit-receive control of usb bus, the data line D of usb bus ₊, D _-Connect microprocessor 4-2, microprocessor connects mousebutton 4-3 simultaneously, and displacement transducer 4-4 and mouse pulley 4-5 are used for being responsible for collection and other mouse built-in functions that mouse state information comprises key-press event and shift transformation etc.The power supply of USB mouse directly obtains from usb bus, and V+ connects power positive end, Gd ground connection.

The utility model connects usb hub at the front end of the usb circuit of traditional USB mouse, usb hub should have two downlink ports at least, the uplink port of usb hub is by the USB plug of usb bus connection computer terminal, and one of downlink port of usb hub connects the usb circuit in the USB mouse.

Shown in Figure 1 is circuit theory diagrams of the present utility model, interface circuit input end at traditional USB mouse is introduced the usb hub module, thereby, modules such as integration USB wireless ethernet card, USB memory function on the USB port of expansion, thereby by sharing wired USB port resource and expanding the USB resource.Usb hub module wherein can adopt special-purpose usb hub chip manufacturing, and for most existing system such as Windows and Linux the standard driver is arranged all.General usb hub (HUB) module all provides the USB port more than four at least, so it is integrated to provide enough USB port resources to be used for function, connect more USB device thereby can refute, especially, integrated wireless Ethernet card 5 and USB portable hard drive 7 on the downlink port of usb hub, refute on the downlink port connect above-mentioned usb terminal equipment after, if also have unnecessary idle port, then can be with it as the USB expansion interface, can be used for refuting and connect other independently USB device, wherein the USB portable hard drive installation file that can be used for dump file or deposit driver is to realize automatic installation.Like this, under the situation of the outward appearance that does not change conventional mouse, utilize the free space of USB mouse inside, place wireless ethernet card and USB portable hard drive, can realize getting online without being tethered to a cable and the portable hard drive function.On the hub downlink port, refute the mode that connects usb terminal equipment and expanding USB interface multiple combination can be provided according to actual needs.

Fig. 3 has provided the built-in function figure of usb hub module.This module is finished by the usb hub integrated chip and the peripheral circuit of standard, and its major function is exactly that a USB input interface line 1 is extended to mutually not in a plurality of USB port of disturbing.Comprise line signal regeneration/routing circuit 2-1, hub state machine 2-2 and hub steering logic 2-3 in the hub module.By the USB interface PC that accesses terminal, (V+ Gd), and is the downlink port power distribution to the usb hub module to obtain power supply from up usb line 1.

USB HUB control chip operation circuit signal regeneration/routing circuit 2-1 finishes upstream data. signals (D+, D-) to the transmitting-receiving of each downlink port 3,3-a, 3-b, 3-c, 3-b-a, 3-b-b data, wherein hub state machine 2-2 and hub controller 2-3 finish data-signal (D+ jointly according to the control information that control chip sends, D-) to the distribution of each downlink port, and how the data-signal on the downlink port shares the data circuit in the upstream data line.

Fig. 4 has provided the embodiment in downlink port integration USB wireless ethernet card 5, USB flash drive 7 and the USB Extended Capabilities Port of usb hub module, the USB HUB chip that supposition is adopted in the example is supported the USB port more than 5, therefore except guaranteeing original mouse function and the radio network functions of core is provided, can also provide two USB Extended Capabilities Port 6-a, 6-b and a USB portable hard drive function.

The downlink port 3 of usb hub module connects the USB mouse functional module in the utility model, downlink port 3-a connects the USB wireless ethernet card, downlink port 3-c connects USB Flash Rom (flash memory), downlink port 3-b-a, 3-b-b connect USB Extended Capabilities Port 6-a, 6-b, wireless ethernet card and flash disk etc. can be installed in the free space of mouse inside.Extended Capabilities Port is connected to the USB socket that is installed on the multifunctional mouse shell by cable.

Unnecessary USB port resource also can be used for continuing integrated removable hard disk module or refutes by the USB Extended Capabilities Port connecing upstream device, and promptly this Multifunctional USB mouse can serve as hub and uses.

Accompanying drawing 5 has provided the typical ultimate principle figure of USB Ethernet card, mainly comprise usb circuit 5-1, microcontroller 5-2, physical layer protocol processor 5-3, base band signal process part 5-4, down coversion part 5-5 and radio-frequency antenna part 5-6 on rf modulations demodulator circuit/radio frequency, miniature antenna can directly be printed on the surface-mounted integrated circuit.Wherein usb circuit is finished the up-downgoing transmission of usb data, microcontroller and protocol processor are finished the MAC layer data framing and the Physical layer encapsulation of wireless ethernet card, base band signal process is partly finished baseband signal modulation function, and radio frequency part is then finished the transmitting-receiving conversion of rf modulations demodulation and antenna.

Accompanying drawing 6 has provided the typical electrical schematic diagram of USB portable hard drive.Microcontroller 7-2 goes up read data frame from usb circuit 7-1, extract control command information wherein and give the disk file map and read-write control module 7-3, the latter produces address signal 7-6 and read-write 7-7 in view of the above, the data-signal that the microcontroller that receives on the data bus 7-8 is sent writes flash memory 7-4, perhaps the data of corresponding address among the flash memory 7-4 are read and delivered on the data bus 7-8, finish data manipulation portable hard drive.

Above-mentioned USB Ethernet card, USB portable hard drive connect the downlink port of usb hub module respectively by usb circuit separately, the data-signal that transmits on transmitting-receiving and the storage usb bus, thus can be so that a plurality of USB device be shared same computing machine USB port resource.

One of feature of the present utility model is to introduce the usb hub function before the usb circuit of USB mouse, to expand USB port more than two, thereby can be integrated in mouse function and wireless ethernet card function or wireless hard disk function etc. on the USB multifunctional equipment, make a plurality of USB device share same computing machine USB port, made full use of the USB port resource, thereby can utilize functions such as the original mouse of USB cheaply acquisition WLAN (wireless local area network) even wide area network networking, and further utilize rich free space and USB port resources integration USB flash disk function to exempt from other various functions of combination on the basis of CD installation and move dump with realization.

Claims

1. Multifunctional USB mouse, it is characterized in that: the front end integration USB hub of usb circuit in the USB mouse, usb hub comprises two downlink ports at least, the uplink port of usb hub connects USB plug by usb bus, and one of them connects the USB mouse module in the downlink port of usb hub.

2. Multifunctional USB mouse according to claim 1, it is characterized in that: all the other downlink ports of described usb hub connect USB wireless ethernet card module and USB memory device or one of them respectively, and described USB wireless ethernet card module, USB memory device are installed in the inside free space of Multifunctional USB mouse.

3. Multifunctional USB mouse according to claim 1 and 2 is characterized in that: the residue downlink port of described usb hub is electrically connected to the USB Extended Capabilities Port that is positioned on the shell.

4. Multifunctional USB mouse according to claim 2 is characterized in that: described USB memory device is a flash disk.