Patent ID: 9325521
Filing Date: 2016-04-26
CPC Classification: G06F,G09G,H04L,H04N

Claim Text:
1. A media sharing device, comprising: at least one data bridge device, which has a function of converting media data of a displayed image, a keyboard, a cursor, and sound into a USB data format and comprises two terminals that are respectively connectable to a USB interface receptacle of a controlling side computer and a USB interface receptacle of a controlled side computer to allow the computers to carry out bi-directional transmission of the media data of the displayed image, the keyboard, the cursor, and the sound with the USB data format; and at least two switching control modules, which are respectively mounted in the controlling side computer and the controlled side computer that are connected to the two terminals of the data bridge device, each of the switching control modules comprising at least one activation device, whereby the media data of the displayed image, the keyboard, the cursor, and the sound supplied by the controlling side computer is transmitted by the data bridge device in the USB data format of the data of displayed image, keyboard, cursor, and sound to the controlled side computer, so that the controlled side computer is allowed to show the media data of the displayed image, the keyboard, the cursor, and the sound supplied from the controlling side computer, and the activation device of the controlled side computer is selectively operated to issue an activation signal, which is transmitted through the data bridge device to the controlling side computer to switch the controlling side computer and the controlled side computer, wherein the at least one data bridge device comprises at least one data exchanger, which has a function of converting the media data of the displayed image, the keyboard, the cursor, and the sound into the USB data format, and at least two USB controllers, which are respectively connectable to two terminals of the data exchanger, the USB controllers being respectively connected to the USB interface receptacle of the controlling side computer and the controlled side computer, wherein the at least one data exchanger comprises an exchanger unit, which has two terminals that are connected to and between the two USB controllers to carry out bi-directional data exchange between the two USB controllers, and a microprocessor unit, which is connected to the exchanger unit to control timing and route of data exchange of the exchanger unit, wherein the switching control module comprises at least one display service block, which receives the displayed image in the USB data format supplied from the USB controller of the data bridge device to process the displayed image of the USB data format, at least one keyboard/mouse service block, which receives keyboard and mouse input signals from the controlling side computer and the controlled side computer to display the keyboard and cursor, at least one sound service block, which receives sound input or output signals from the controlling side computer and the controlled side computer to carry out processing and broadcasting of the sound, and at least one activation device, which is connected to the keyboard/mouse service block, so as to allow the activation device to be activated to issue an activation signal that is transmitted through the keyboard/mouse service block, and wherein the display service block comprises at least one system graphic service module, which receives the displayed image of the USB data format from the USB controller of the data bridge device in order to process the displayed image of the USB data format to supply a displayed image signal to physical display drivers of the controlling side computer and the controlled side computer so that the physical display drivers apply the image displaying signal to the display devices to be displayed therein, and at least one virtual display driver, which is connected to the system graphic service module to receive the displayed image of the USB data format from the system graphic service module and convert the displayed image into the displayed image signal to be transmitted back to the system graphic service module.