Optical mouse with external expansion storage function and switchable access terminal

Abstract

The invention relates to an optical mouse with an external expansion storage function and a switchable access terminal. The optical mouse comprises an expansion storage module used for storage; the USB control module reads and writes the extended storage module according to the communication protocol, and converts the information into a signal matched with the USB interface according to the communication protocol; meanwhile, an optical mouse module is connected with the USB interface and is used for collecting mouse movement information, selected information and rolling pulley information and converting the information into signals conforming to a communication protocol; the two signals are transmitted to the terminal equipment through the USB interface and the switching module; the switching module is used for selecting different terminal devices for connection according to the output signal level of the switching control device; the switching control device is used for outputting a switching signal to the switching module. According to the invention, a user can quickly transmit the file without plugging and unplugging the device, the interface resource demand in the use of the terminal device is reduced, the cost is saved, and the office efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of electronics, and in particular to an optical mouse with an external expansion storage function and a switchable access terminal. Background Art

[0002] With the continuous advancement of technology and changes in market demand, the technology in the field of optical mouse and computer expansion storage is also developing; currently, there are a variety of mouse and USB flash drive solutions on the market. However, the existing technical solutions do not combine the optical mouse and computer expansion storage technology together, and do not use the Switch module to switch devices for mouse control and file access without plugging in or unplugging the terminal device.

[0003] For example, if a user needs to control a terminal device with a mouse and use a USB flash drive to store files, two interfaces need to be occupied at the same time. Not only does it occupy interface resources, but frequent plugging and unplugging will also cause loss of device life and reduce user work efficiency and experience comfort. In daily office work, with the large number of files, more than one office computer is usually required. When facing multiple computer devices, files often need to be transferred from one computer to another. Under existing technical conditions, two mice and a removable USB flash drive have to be purchased, which greatly reduces office efficiency. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an optical mouse with an external expansion storage function and a switchable access terminal, thereby solving the shortcomings of the prior art.

[0005] The object of the present invention is achieved by the following technical scheme: an optical mouse with an external extended storage function, comprising a USB interface, an extended storage module, an optical mouse module, a switching module, a USB control module and a switching control device; the switching control device is electrically connected to the switching module, the switching module is electrically connected to different terminal devices and the USB interface respectively, the USB interface is electrically connected to the optical mouse module and the USB controller, and the USB controller is electrically connected to the extended storage module; The switching control device is configured to output a switching signal to the switching module after receiving an external trigger signal; The switching module is configured to receive the switching signal, and select different terminal devices to be connected to the USB controller and the optical mouse module through the USB interface according to the level of the switching signal. The USB control module is configured to read and write the extended storage module according to the communication protocol, convert the information into a signal adapted to the USB interface according to the communication protocol, and transmit it to the corresponding terminal device through the USB interface and the switching module; The optical mouse module is configured to collect mouse movement information, selection information and scroll wheel information in real time, convert them into signals that comply with the communication protocol, and transmit the signals to the corresponding terminal device through the USB interface and the switching module.

[0006] The USB interface includes a 5V interface power line, a D+ / D- differential bus, a SSTX+ / SSTX- differential bus, and a SSRX+ / SSRX- differential bus; The USB interface is connected to the optical mouse module and the switching module via the D+ / D- differential bus domain, providing control signal transmission for the optical mouse module; the USB interface is connected to the USB controller and the switching module via the SSTX+ / SSTX- differential bus and the SSRX+ / SSRX- differential bus domain, providing signal transmission for read and write functions.

[0007] The D+ / D- differential bus is a USB2.0 signal line and complies with the USB2.0 protocol. The SSTX+ / SSTX- differential bus and the SSRX+ / SSRX- differential bus are USB3.0 signal lines and comply with the USB3.0 protocol.

[0008] The switching module includes a first electronic switching switch and a second electronic switching switch connected to the terminal device, the USB interface is connected to the first electronic switching switch via an SSTX+ / SSTX- differential bus and an SSRX+ / SSRX- differential bus, and the USB interface is connected to the second electronic switching switch via a D+ / D- differential bus.

[0009] The present invention has the following advantages: an optical mouse with an external expansion storage function, which modularizes and integrates the external expansion storage technology and the optical mouse control technology into one device, and realizes the control and storage reading and writing functions of the terminal through a USB interface, so that users can realize fast file transmission without plugging and unplugging devices, providing convenience for users, reducing the interface resource requirements in the use of terminal devices, saving costs, and improving office efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the principle structure of the present invention; Figure 2 This is a schematic diagram of the principle structure when there is only one terminal device. DETAILED DESCRIPTION

[0011] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present application provided below in conjunction with the drawings is not intended to limit the scope of protection of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application. The present invention is further described below in conjunction with the drawings.

[0012] like Figure 1 As shown, the present invention specifically relates to an optical mouse with an external extended storage function and a switchable access terminal, which combines the mouse technology with the extended storage technology, and reduces the two interface requirements originally required to one interface requirement. Through independent transmission of different channels, the conflict between the USB communication protocol of the mouse and the USB communication protocol of the USB flash drive is avoided. The terminal can realize the mouse control and the read and write functions of the USB flash drive storage through two buses in one interface. Before the USB interface communication cable, the signal channel is switched through the switching module and transmitted to different terminals according to user operations.

[0013] It includes a USB interface, an extended storage module (NAND flash memory), an optical mouse module, a switching module, a USB control module and a switching control device; wherein the USB interface includes a 5V interface power line, a D+ / D- differential bus, a GND ground line, SSTX+ / SSTX-, and SSRX+ / SSRX- differential buses. The D+ / D- differential bus is a USB2.0 signal line, follows the USB2.0 protocol, connects the optical mouse module, and provides mouse control signal transmission.

[0014] The SSTX+ / SSTX- and SSRX+ / SSRX- differential buses are USB3.0 signal lines and comply with the USB3.0 protocol. SSTX+ and SSTX- are transmission channels, and SSRX+ and SSRX- are receiving channels, which are connected to the expansion storage module to provide signal transmission for read and write functions. After the USB interface is transmitted, it will pass through the switching module, which will transmit the obtained read and write signals and the optical mouse module control signal to the terminal device 1 or the terminal device 2 according to the received switching signal.

[0015] The working principle of the present invention is: after the USB controller completes the reading and writing of the NAND flash memory, the USB interface completes the reading and writing communication with the terminal device through the USB3.0 SSTX+ / SSTX- and SSRX+ / SSRX- differential buses. The optical mouse is controlled by the USB interface to the terminal through the USB2.0 D+ / D-. Finally, the functions of external expansion storage and mouse control are simultaneously achieved by one USB interface. After the transmission back end through the USB interface, it will pass through the switching module, and the switching module will transmit the obtained read-write signal and mouse control signal to the terminal device 1 or the terminal device 2 according to the received switching signal. For example, if the switching signal is at a high level, the switching module will transmit the read-write signal and the mouse control signal to the terminal device 1. If the switching signal is at a low level, the switching module will transmit the read-write signal and the mouse control signal to the terminal device 2.

[0016] In addition to the above situation, the present invention can also be used normally when the user has only one terminal device. For example, the user only connects terminal device 1, and only needs to set the switching signal to a high level, and the electronic switching switch will transmit the signal to terminal device 1, and terminal device 2 is in a suspended state, which does not affect the normal operation of the present invention.

[0017] like Figure 2 As shown, or, when the user has only one terminal device, the switching module and the switching control device are removed, and the terminal device is directly connected to the USB interface, so that the mouse control and file access of a single terminal can be completed at the same time.

[0018] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used for various other combinations, modifications and improvements, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. An optical mouse with external expansion storage function and switchable access terminal, characterized in that: It includes a USB interface, an extended storage module, an optical mouse module, a switching module, a USB control module and a switching control device; the switching control device is electrically connected to the switching module, the switching module is electrically connected to different terminal devices and the USB interface respectively, the USB interface is electrically connected to the optical mouse module and the USB controller, and the USB controller is electrically connected to the extended storage module; The switching control device is configured to output a switching signal to the switching module after receiving an external trigger signal; The switching module is configured to receive the switching signal, and select different terminal devices to be connected to the USB controller and the optical mouse module through the USB interface according to the level of the switching signal. The USB control module is configured to read and write the extended storage module according to the communication protocol, convert the information into a signal adapted to the USB interface according to the communication protocol, and transmit it to the corresponding terminal device through the USB interface and the switching module; The optical mouse module is configured to collect mouse movement information, selection information and scroll wheel information in real time, convert them into signals that comply with the communication protocol, and transmit the signals to the corresponding terminal device through the USB interface and the switching module.

2. An optical mouse with external expansion storage function and switchable access terminal according to claim 1, characterized in that: The USB interface includes a 5V interface power line, a D+ / D- differential bus, a SSTX+ / SSTX- differential bus, and a SSRX+ / SSRX- differential bus; The USB interface is connected to the optical mouse module and the switching module via the D+ / D- differential bus domain, providing control signal transmission for the optical mouse module; the USB interface is connected to the USB controller and the switching module via the SSTX+ / SSTX- differential bus and the SSRX+ / SSRX- differential bus domain, providing signal transmission for read and write functions.

3. An optical mouse with external expansion storage function and switchable access terminal according to claim 2, characterized in that: The D+ / D- differential bus is a USB2.0 signal line and complies with the USB2.0 protocol. The SSTX+ / SSTX- differential bus and the SSRX+ / SSRX- differential bus are USB3.0 signal lines and comply with the USB3.0 protocol.

4. An optical mouse with external expansion storage function and switchable access terminal according to claim 2, characterized in that: The switching module includes a first electronic switching switch and a second electronic switching switch connected to the terminal device, the USB interface is connected to the first electronic switching switch via an SSTX+ / SSTX- differential bus and an SSRX+ / SSRX- differential bus, and the USB interface is connected to the second electronic switching switch via a D+ / D- differential bus.

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