TW202006592A - Image transmission device, image transmission method, and image transmission system - Google Patents

Abstract

The present disclosure relates to an image transmission device including a CPU, a wireless communication module, a button, a USB connector and an internal storage unit. The wireless communication module, the button, the USB connector and the internal storage unit are connected with the CPU. The USB connector is inserted into a computer having a portable software. The internal storage unit is inaccessible to the computer. The portable software is copied to the computer from an external source and executed by the computer. The wireless communication module is wirelessly connected with a receiving device. When the button is activated, a signal is transmitted to the CPU by the button, and a command is transmitted to the portable software by the CPU so as to be executed for controlling a screen mirroring, so that plural images are transmitted from the computer to the receiving device through the USB connector and the wireless communication module. Therefore, the safety and the application diversity are effectively enhanced, and the function of one-button-screen-mirroring is implemented.

Description

Image transmission device, image transmission method and image transmission system

This case relates to an image transmission device, especially an image transmission device and an image transmission method.

In recent years, various external devices are widely used to assist display projection. For example, when a computer is used for presentations, its screen must be mirrored to the projector so that the content displayed on the computer screen can be projected onto the projection screen in real time. Traditionally, D-SUB, DVI or HDMI cables are used to connect computers and projectors to achieve projection. However, this method is limited to wired connections.

In this regard, the image transmission device has been developed to realize the wireless connection between the computer and the screen/projector. Traditionally, such image transmission devices mostly include an image storage unit for storing related software programs and/or drivers. When the image transmission device is connected to a user's computer, the computer will recognize the image transmission device as a universal serial bus (USB) mass storage device (Mass Storage Device) for users to copy, install, or perform this image transmission Software on the device.

However, there are still at least two disadvantages to this implementation. First, for data security reasons, more and more organizations (such as general companies, banks, and government units) have disabled the function of mass storage devices (USB) in employee computers. In this case, the above-mentioned video transmission device will become completely useless. Secondly, since the driver or software on the image transmission device needs to be installed and updated, the USB disk of the image transmission device must be writable. Because software viruses or malicious programs may be written to the image transmission device, causing security risks.

Therefore, it is necessary to create an improved image transmission device and image transmission method that can solve the shortcomings of the conventional technology.

The main purpose of this case is to provide an image transmission device and an image transmission method to solve and improve at least one of the aforementioned shortcomings of the prior art.

Another object of this case is to provide an image transmission device and an image transmission method. By using an internal storage unit that cannot be accessed by a computer or other electronic devices, the image transmission device of this case can effectively improve security and application diversity.

Another object of this case is to provide an image transmission device and an image transmission method. Since the portable soft system is copied from an external source to a computer, it does not need to be bound to the image transmission device, and its acquisition and subsequent updates can be performed through a secure and virus-free Pipeline realization. Further, with the buttons of the image transmission device, the function of mirroring the screen can be realized by one button.

Another object of this case is to provide an image transmission device and an image transmission method, wherein the image transmission device may be a USB device compatible with a humanized interface device. This image transmission device does not need to use any USB mass transmission device, and no software virus or malicious program will exist in the image transmission device. In a company that disables the function of a large number of transmission devices of the universal serial bus in the employee's computer, employees can smoothly use the image transmission device in this case.

In order to achieve the above purpose, a preferred embodiment of the present case is to provide an image transmission device including: a central processor; a wireless communication module connected to the central processor; and a button connected to the central processor Connection; a universal serial bus connector connected to the central processing unit; and an internal storage unit connected to the central processing unit; wherein, the universal serial bus connector is inserted into a portable software A computer, the computer cannot access the internal storage unit, the portable soft system is copied to the computer from an external source and executed by the computer, and the wireless communication module is wirelessly connected to a receiving device, When the button is activated, the button sends a signal to the central processor, and the central processor sends a command to the portable software to execute a screen mirroring, so that multiple images from the computer through the The universal serial bus connector and the wireless communication module are transmitted to the receiving device.

To achieve the above purpose, a preferred embodiment of the present case is to provide an image transmission method, including the steps of: (a) pairing an image transmission device and a receiving device; (b) copying a portable software to a computer; c) Run the portable software on the computer; (d) insert the image transmission device into the computer, wherein the computer cannot access an internal storage unit of the image transmission device; (e) enable the image transmission device A button to send a command from the image transmission device to the portable software; and (f) the portable software executes the command to control a screen mirroring so that a plurality of images are transmitted from the computer to the image The transmission device is then transmitted by the image transmission device to the receiving device.

To achieve the above purpose, a preferred embodiment of the present case is to provide an image transmission system, including: a computer, in which a portable software system is copied from an external source to the computer and executed by the computer; a receiving device; And an image transmission device, wherein the image transmission device includes: a central processor; a wireless communication module connected to the central processor and wirelessly connected to the receiving device; and a button connected to the central processor A universal serial bus connector connected to the central processor and inserted into the computer; and an internal storage unit connected to the central processor, and the computer cannot access the internal storage unit; wherein, when The button is activated, the button sends a signal to the central processor, the central processor sends a command to the portable software to execute a screen mirroring, so that a plurality of images from the computer through the general The serial bus connector and the wireless communication module are transmitted to the receiving device.

Some typical embodiments embodying the characteristics and advantages of this case will be described in detail in the description in the following paragraphs. It should be understood that this case can have various changes in different forms, and they all do not deviate from the scope of this case, and the descriptions and illustrations therein are essentially used for explanation, not for limiting the case.

Please refer to FIGS. 1 to 5B, wherein FIG. 1 is a block diagram showing the structure of the image transmission device of the preferred embodiment of the present case, FIG. 2 is a schematic diagram showing the image transmission device and the receiving device are paired through USB insertion, and the third Figure 4 shows the schematic diagram of the connection between the computer and the receiving device, USB flash drive, internal network and Internet. Figure 4 shows the schematic diagram of the image transmission device inserted into the computer. Figure 5A shows the image transmission device, computer and receiving device. The schematic diagram of the device and the display device connected to the receiving device, and FIG. 5B are schematic diagrams showing that the button shown in FIG. 5A is pressed by the user and the screen of the computer screen is mirrored to the display device. As shown in FIGS. 1 to 5B, the image transmission device 1 of the preferred embodiment of the present case includes a central processing unit 11, a wireless communication module 12, a button 13, a universal serial bus connector (USB) connector 14 and an internal存单元15。 Storage unit 15. The wireless communication module 12 is connected to the central processor 11 and may be a wireless fidelity (Wi-Fi) communication unit, but not limited to this. The button 13 is connected to the central processing unit 11, and the button 13 can be a physical button, or a software button, that is, actually has a physical button, or a virtual button or a touch button. The method of biometric recognition is implemented, but not limited to this. The virtual buttons can be displayed directly on the computer screen, or can be both virtual buttons and touch buttons, such as virtual buttons displayed on a touch screen, In addition to clicking with a mouse, you can also directly touch it with your fingers, but it is not limited to this. The universal serial bus connector 14 is connected to the central processing unit 11, wherein the universal serial bus connector 14 may be, for example but not limited to, a micro universal serial bus (Micro-USB) connector, a mini universal serial bus (Mini-USB) connector, a Type-C (Type-C) universal serial bus connector. The internal storage unit 15 is connected to the central processor 11.

The universal serial bus connector 14 is inserted into the computer 2 with portable software. The computer 2 cannot access the internal storage unit 15, that is, for the computer 2, the internal storage unit 15 is inaccessible. That is to say, the internal storage unit 15 will not be recognized by the computer 2 as a disk, so the user will not see a disk recognized or mounted on the operating system. However, the image transmission device 1 is recognized by the system as a human interface device (HID), or even a universal serial bus human interface device (USB-HID), that is, a device similar to a mouse or a keyboard. The driver will be automatically set by the operating system on the computer 2. By using an internal storage unit 15 that is inaccessible by the computer 2 or other electronic devices, the image transmission device 1 in this case can effectively improve security and application diversity.

According to the concept of this case, the way to make the computer 2 inaccessible to the internal storage unit 15 can be realized by the following method, but not limited to this: one is to use internal storage that does not meet the specifications or agreements of the mass storage device of the universal serial bus Unit 15; the second is to provide an internal storage unit 15 with a disk format that cannot be read by the operating system of the computer 2, for example, an internal storage unit 15 with a disk format of ext4 or HFS in the Windows® operating system, or a disk format It is the internal storage unit 15 of NTFS in the Macintosh® operating system, etc.; of course, the internal storage unit 15 may not be physically connected to the computer 2 by hardware isolation, or the internal storage is shielded on the operating system in a software-covered manner Unit 15.

The portable soft system is copied to the computer 2 from an external source and executed by the computer 2. According to the concept of this case, the portable software can be simply copied to the computer 2 and executed directly without the permission of the system administrator. In a company that prohibits employees from installing software on the computer 2, employees can still use this portable software directly with the image transmission device 1 to achieve image transmission. Since the portable soft system is copied to the computer 2 from an external source, it does not need to be bound to the image transmission device 1, and its acquisition and subsequent updates can be achieved through a safe and virus-free channel.

The wireless communication module 12 is wirelessly connected to the receiving device 3. In some embodiments, the receiving device 3 may be a projector, but not limited to this. When the button 13 is activated, the button 13 sends a signal to the central processing unit 11, and the central processing unit 11 sends a command to the portable software for execution to control a screen mirroring, so that a plurality of images are transmitted from the computer 2 via the universal serial bus The connector 14 is transmitted to the image transmission device 1, and then transmitted to the receiving device 3 via the wireless communication module 12. In some embodiments, the receiving device 3 is connected to the display device 4, and a plurality of images are displayed on the screen of the computer 2 and the display device 4 synchronously, so as to realize the synchronized screen mirroring of the computer 2 and the display device 4. It can be seen that the image transmission device 1 in this case can realize the function of screen mirroring with one click.

Please refer to Figure 1 and Figure 2 again. In some embodiments, the connection information of the receiving device 3 is stored in the internal storage unit 15, and the connection information includes the SSID and password of the wireless fidelity network, but not limited thereto. Before inserting the image transmission device 1 of the present invention into a computer for screen mirroring, the universal serial bus connector 14 of the image transmission device 1 is inserted into the receiving device 3 in advance, so that the CPU 11 and the receiving device 3 are paired. When the CPU 11 and the receiving device 3 are paired, the CPU 11 writes the connection information into the internal storage unit 15. In addition, the receiving device 3 can be connected to the display device 4 through a connector 31, and display connection information on the display device 4, the connection information includes the SSID and password of the wireless fidelity network, but not as a limit.

Please refer to Figure 1 and Figure 3 again. According to the concept of this case, the external source includes a receiving device 3, a universal serial bus flash drive (USB Flash Drive) 5, an intranet (Intranet) 6 or an internet (Internet) 7. Among them, the internal network 6 includes a closed area network and a network attached storage device (Network Attached Storage, NAS) built on the closed area network, but not limited to this. If a network-attached storage device (NAS) is set up on Internet 7, it is the concept of a public cloud. The Internet 7 series includes public cloud, private cloud, community cloud and hybrid cloud. As for the universal serial bus flash drive 5, it is preferably a read-only universal serial bus flash drive provided by the company's internal security management personnel, but it is not limited to this. The portable software can be simply downloaded through an Internet address (URL) or copied to the computer 2 by simple copy and paste. In this case, the portable software can be copied and executed without any installation actions and administrator rights. In addition, the portable software can communicate with the computer 2 through the Universal Serial Bus Humanized Interface Device (USB-HID) communication protocol, such as commands, status, and screen mirroring data, which can be communicated through this communication protocol.

Further, the portable software can run in the background of the computer 2. When the image transmission device 1 is inserted into the computer 2, the portable software starts communication with the image transmission device 1 through the universal serial bus humanized interface device (USB-HID) communication protocol. The communication referred to herein includes sending commands to the central processing unit 11 of the image transmission device 1 to activate the wireless connection between the wireless communication module 12 and the receiving device 3.

Please refer to Figure 1, Figure 5A and Figure 5B again. When the wireless connection between the wireless communication module 12 and the receiving device 3 is successfully established, the user can press the button 13 of the image transmission device 1 with the finger 81 of the hand 8 as shown in FIG. 5B to activate the button 13 The central processor 11 controls the screen mirroring so that the image displayed by the computer 2 is transmitted to the receiving device 3 via the wireless communication module 12. The receiving device 3 may include the display device 4 itself, or be connected to the display device 4 through a connector 31, and the image displayed by the computer 2 is synchronously displayed on the display device 4, but not limited thereto.

Please refer to FIG. 6 in conjunction with FIG. 1, which is a flowchart showing the image transmission method of the preferred embodiment of the present case. As shown in FIG. 1 and FIG. 6, the image transmission method of the preferred embodiment of this case includes the following steps. First, as shown in step S10, the video transmission device 1 and the receiving device 3 are paired. Next, as shown in step S20, copy the portable software to the computer 2. Then, as shown in step S30, the portable software is executed on the computer 2. Next, as shown in step S40, insert the image transmission device 1 to the computer 2. Then, as shown in step S50, the key 13 of the image transmission device 1 is activated, so that a command is transmitted from the image transmission device 1 to the portable software. Then, as shown in step S60, the portable software executes the command to control the screen mirroring, so that a plurality of images are transmitted from the computer 2 to the image transmission device 1, and then the image transmission device 1 is transmitted to the receiving device 3. Specifically, the image transmission device 1 further includes a central processing unit 11, a wireless communication module 12, a universal serial bus connector 14, and an internal storage unit 15. The wireless communication module 12, the button 13, the universal serial bus connector 14 and the internal storage unit 15 are connected to the central processing unit 11. Among them, the computer 2 cannot access the internal storage unit 15.

According to the concept of this case, the central processor 11 controls the screen mirroring so that the image displayed by the computer 2 is transmitted to the receiving device 3 via the wireless communication module 13. The receiving device 3 preferably includes a display device 4, and the image displayed by the computer 2 is displayed on the display device 4 synchronously.

In addition, in step S10, during the pairing process of the image transmission device 1 and the receiving device 3, it is preferable to insert the universal serial bus connector 14 of the image transmission device 1 into the receiving device 3 for data exchange, and the center The processor 11 writes the connection information of the receiving device 3 into the internal storage unit 15.

In summary, the present case provides an image transmission device and image transmission method to solve and improve at least one disadvantage of the prior art. In this case, by using an internal storage unit that cannot be accessed by a computer or other electronic devices, security and application diversity can be effectively improved. At the same time, since the portable soft system is copied from an external source to the computer, there is no need to bind it to the image transmission device, and its acquisition and subsequent updates can be achieved through a safe and virus-free channel. Further, with the buttons of the image transmission device, the function of mirroring the screen can be realized by one button. In addition, the image transmission device in this case may be a USB device compatible with a humanized interface device, which does not need to use any USB mass transmission device, and no software virus or malicious program will exist in the image transmission device. In a company that disables the function of a large number of transmission devices of the universal serial bus in the employee's computer, employees can smoothly use the image transmission device in this case.

Even if the case has been described in detail by the above-mentioned embodiments and can be modified by any person familiar with the art, it can be modified as many as desired by the scope of the patent application.

1‧‧‧Image transmission device 11‧‧‧Central processor 12‧‧‧Wireless communication module 13‧‧‧Key 14‧‧‧General serial bus connector 15‧‧‧Internal storage unit 2‧‧‧ Computer 3 ‧‧‧Receiver 31‧‧‧Connector 4‧‧‧Display device 5‧‧‧USB flash drive 6‧‧‧Intranet 7‧‧‧Internet 8‧‧‧Hand 81‧‧‧Finger S10 ～S40‧‧‧Step

Figure 1 is a block diagram showing the structure of an image transmission device according to a preferred embodiment of the present invention. Fig. 2 is a schematic diagram showing that the image transmission device and the receiving device are inserted and paired through USB. Figure 3 shows the connection diagram between the computer and the receiving device, USB flash drive, internal network and Internet. Figure 4 is a schematic diagram showing the insertion of an image transmission device into a computer. FIG. 5A is a schematic diagram showing an image transmission device, a computer, a receiving device, and a display device connected to the receiving device. FIG. 5B is a schematic diagram showing that the key shown in FIG. 5A is pressed by the user and the screen of the computer screen after being activated is mirrored to the display device. FIG. 6 is a flowchart showing the image transmission method of the preferred embodiment of this case.

1‧‧‧Image transmission device

11‧‧‧ CPU

12‧‧‧Wireless communication module

13‧‧‧ button

14‧‧‧Universal serial bus connector

15‧‧‧Internal storage unit

2‧‧‧ Computer

3‧‧‧Receiving device

4‧‧‧Display device

Claims (15)

An image transmission device, including: a central processor; a wireless communication module connected to the central processor; a button connected to the central processor; a universal serial bus connector and the central processor Connected; and an internal storage unit connected to the central processing unit; wherein, the universal serial bus connector is inserted into a computer with a portable software, the computer cannot access the internal storage unit, the The portable soft system is copied to the computer from an external source and executed by the computer, and the wireless communication module is wirelessly connected to a receiving device. When the button is activated, the button transmits a signal to the center Processor, the central processor sends a command to the portable software to execute a screen mirroring, so that multiple images are transmitted from the computer to the universal serial bus connector and the wireless communication module to the Receiver. The image transmission device as described in item 1 of the patent application scope, wherein a connection information of the receiving device is stored in the internal storage unit. An image transmission device as described in item 1 of the patent application, wherein the key is a physical key or a software key, and wherein the software key is a virtual key displayed on a screen. The image transmission device as described in item 1 of the patent application scope, wherein the external source includes the receiving device, a universal serial bus flash drive, an internal network, or an Internet. The image transmission device as described in item 4 of the patent application scope, wherein the internal network includes a closed local area network and a network connection storage device that is erected on the closed local area network. The image transmission device as described in item 4 of the patent application scope, wherein the universal serial bus flash drive is a read-only universal serial bus flash drive. The image transmission device as described in item 4 of the patent application scope, wherein the Internet includes a public cloud, a private cloud, a community cloud, and a hybrid cloud. An image transmission device as described in item 1 of the patent application range, wherein the receiving device is connected to a display device, and the plurality of images are simultaneously displayed on a screen of the computer and the display device. An image transmission method includes the steps of: (a) pairing an image transmission device and a receiving device; (b) copying a portable software to a computer; (c) executing the portable software on the computer; (d ) Insert the image transmission device into the computer, where the computer cannot access an internal storage unit of the image transmission device; (e) Activate a key of the image transmission device so that a command is transmitted from the image transmission device to the computer Portable software; and (f) the portable software executes the command to control a screen mirroring so that a plurality of images are transmitted from the computer to the image transmission device, and then transmitted from the image transmission device to the receiving device. The image transmission method as described in item 9 of the patent application scope, wherein the image transmission device further comprises: a central processor connected to the key and the internal storage unit; a wireless communication module connected to the central processor Connection; and a universal serial bus connector, connected to the central processor. The image transmission method as described in item 10 of the patent application scope, wherein the universal serial bus connector is inserted into the computer, the central processor transmits the instruction, and the plurality of images displayed by the computer are via the wireless The communication module is transmitted to the receiving device. The image transmission method as described in item 11 of the patent application scope, wherein the receiving device includes a display device, and the plurality of images displayed by the computer are simultaneously displayed on the display device. The image transmission method as described in item 10 of the patent application scope, wherein in the step (a), the central processor writes connection information of one of the receiving devices into the internal storage unit. The image transmission method as described in item 10 of the patent application scope, wherein the portable soft system is copied to the computer from an external source. An image transmission system includes: a computer in which a portable software system is copied from an external source to the computer and executed by the computer; a receiving device; and an image transmission device, in which the image transmission device includes: a central A processor; a wireless communication module connected to the central processor and wirelessly connected to the receiving device; a button connected to the central processor; a universal serial bus connector connected to the central processor Connected and plugged into the computer; and an internal storage unit connected to the central processor, and the computer cannot access the internal storage unit; wherein, when the button is activated, the button sends a signal to the central processing The central processor sends a command to the portable software for execution to control a screen mirroring, so that multiple images are transmitted from the computer to the receiver via the universal serial bus connector and the wireless communication module Device.

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