Abstract: A video matrix controller, including a receiving module, a matrix switch module and a transmission module. The matrix switch module is coupled between the receiving module and the transmission module. The receiving module includes a first port interface and a first transceiver. The first port interface receives image data and converts it to a signal, and transmits it to the first transceiver. The transmission module includes a second transceiver and a second port interface. The signal is transmitted from the first transceiver to the matrix switch module. The second transceiver receives the signal, and the second port interface converts the signal to image data and transmits it to a corresponding external display device.

Abstract: A system, apparatus and method for communicating half-duplex signals and full-duplex signals. The system includes an input unit, a separation unit and an output unit. The input unit includes a D± data channel for communicating differential data signals D± in both directions in half-duplex mode. The output unit includes a receiving channel D±RX and a transmitting channel D±TX for respectively communicating receiving differential signals D±RX and transmitting differential signals D±TX in full-duplex mode. The separation unit, coupled to the input unit and output unit, separately transmits differential data signals D± from the D± channel of the input unit as transmitting differential signals D±TX to the D±TX channel of the output unit, and transmits receiving differential signals D±RX from the D±RX channel of the output unit as D± data to the D± data channel of the input unit.

Abstract: A video signal transmission switching apparatus is disclosed. The video signal transmission switching apparatus is coupled between a source apparatus and a plurality of display apparatuses. The video signal transmission switching apparatus includes a controller, a USB Type-C connecting interface, a plurality of video output interfaces and a switching module. The controller is coupled to the source apparatus through the USB Type-C connecting interface at least including a specific channel. The controller is coupled to the plurality of display apparatus through the plurality of video output interfaces respectively. The switching module is coupled to the specific channel and coupled to the plurality of video output interfaces respectively. The switching module detects a specific signal of the plurality of display apparatus and controls the specific channel to re-perform handshaking accordingly.

Abstract: A media switch device includes at least one media input port, a media input/extension composite port, a media output port, a media switch unit and a command switching and control module. The command switching and control module receives a response command from the media input/extension composite port to determine whether the media input/extension composite port is connected to a source device or to another media switch device. The command switching and control module receives a query command from the media output port to determine whether the media output port is connected to a sink device or to another media switch device. Related media switch system and method are also disclosed.

Abstract: An apparatus for recording game history is coupled between a game host and a game console and performs a game history recording and interaction method. The apparatus communicates with the game host through a first wireless unit, and communicates with the game console through a second wireless unit, to receive game operation information generated from operations of the game console. The apparatus receives a video signal outputted by the game host through a video input port. The processing module is coupled to the wireless units and the video input port respectively and is used to obtain the game operation information from the wireless units and generate operation information images corresponding to the game operation information. The processing module superimposes the operation information images on the video signal correspondingly to form game history video data and outputs the superimposed game history video data to a display device for display.

Abstract: A media switch device includes at least one media input port, a media input/extension composite port, a media output port, a media switch unit and a command switching and control module. The command switching and control module receives a response command from the media input/extension composite port to determine whether the media input/extension composite port is connected to a source device or to another media switch device. The command switching and control module receives a query command from the media output port to determine whether the media output port is connected to a sink device or to another media switch device. Related media switch system and method are also disclosed.

Abstract: A signal relaying device applied to DisplayPort architecture is disclosed. The signal relaying device is coupled between a source device and a sink device and includes a receiving end, an arbiter and a transmitting end. The receiving end receives a request signal from the source device via the first auxiliary channel. The arbiter is coupled to the receiving end and receives the request signal. The transmitting end receives the request signal from the arbiter and transmits the request signal to the sink device via the second auxiliary channel. The sink device transmits a first configuration data to the transmitting end via the second auxiliary channel when receiving the request signal. The arbiter replaces the first configuration data with the second configuration data and transmits the second configuration data to the receiving end when receiving the first configuration data from the transmitting end.

Abstract: The present invention provides a video switching apparatus, a video switching system, and a video switching method. The video switching apparatus includes a video generating unit and a processing unit. The video generating unit receives a first video signal forming a first video picture and a second video signal forming a second video picture, and generates a display video signal to be displayed on the head mounted device, wherein the display video signal is adjusted to form a first mode picture or a second mode picture, and the first mode picture includes at least a portion of the first video picture and at least a portion of the second video picture. The processing unit receives a first sensing signal from a sensing unit and outputs a first switching signal to the video generating unit. The video generating unit generates the display video signal corresponding to the first mode picture or the second mode picture based on the first switching signal.

Abstract: An automatic switching apparatus and an automatic switching method are disclosed. The automatic switching apparatus includes a universal serial bus Type-C input connector, a plurality of main links, at least one video output connector and at least one USB output connector. The automatic switching method includes the steps of: (a) detecting a use state of the plurality of main links; and (b) automatically switching the specification of the at least one USB output connector.

Abstract: A media switch device includes at least one media input port, a media input/extension composite port, a media output port, a media switch unit and a command switching and control module. The command switching and control module receives a response command from the media input/extension composite port to determine whether the media input/extension composite port is connected to a source device or to another media switch device. The command switching and control module receives a query command from the media output port to determine whether the media output port is connected to a sink device or to another media switch device. Related media switch system and method are also disclosed.

Abstract: An image processing apparatus is disclosed. The splitter duplicates an original image signal into a first image signal and a second image signal. The first signal converter converts the second image signal having a first image format to the second image signal having a second image format. The image processor stores the second image signal in the memory according to an enable signal and continuously compares whether the current frame of the second image signal is the same as the previous frame of the second image signal. If they are different, the image processor continuously receives the second image signal and stores it in the memory. If they are the same, the image processor stops receiving the second image signal. The second converter converts the second image signal having the second image format to the second image signal having the first image format.

Abstract: A method for extending the range of isochronous USB data transfer, by providing a local extender and a remote extender, coupled respectively to the USB host and the USB device, and coupled to each other via a non-USB cable. After receiving a first In-token from the host, the local extender transmits a first data packet to the host, which contains a data payload having a non-zero length; the data is either generated by the first extender, or previously received from the USB device and stored in a buffer. The local extender forwards the first In-token to the USB device via the remote extender; in response, the USB device generates a second data packet containing requested data and transmits it to the local extender via the remote extender. The local extender stores the second data packet and transmits it to the host in response to a second In-token from the host.

Abstract: An apparatus for recording game history is coupled between a game host and a game console and performs a game history recording and interaction method. The apparatus communicates with the game host through a first wireless unit, and communicates with the game console through a second wireless unit, to receive game operation information generated from operations of the game console. The apparatus receives a video signal outputted by the game host through a video input port. The processing module is coupled to the wireless units and the video input port respectively and is used to obtain the game operation information from the wireless units and generate operation information images corresponding to the game operation information. The processing module superimposes the operation information images on the video signal correspondingly to form game history video data and outputs the superimposed game history video data to a display device for display.

Abstract: A signal adapter device for a display system which enables turning on and off the display device for energy conservation. The signal adapter has a signal input port coupled to a signal source, a signal output port coupled to a display, and an adapter port coupled to a sensor. Corresponding pins of the input and output ports are electrically connected to each other, except that the hot plug detect pin of the input port is electrically disconnected from that of the output port but is electrically connected to a hot plug detect pin of the adapter port. The sensor senses environmental conditions such as the presence of viewers within a certain distance, and generates a voltage signal for the hot plug detect pin. Based on this signal on its hot plug detect pin, the signal source determines whether to transmit multimedia data to the display device.

Abstract: A Thunderbolt sharing console includes a high speed switch electrically coupled to at least one Thunderbolt host, a MCU coupled to the high speed switch, and a Thunderbolt interface chip coupled to the high speed switch, wherein the MCU can be used to control the high speed switch for determining which one of the at least one Thunderbolt host is coupled to the Thunderbolt interface chip.

Abstract: A multimedia signal transmission device includes: a clock signal detector for detecting a clock signal from a signal source and generating a clock index which specifies a frequency of the clock signal; a first microcontroller unit for receiving the clock index and for receiving multiple differential signals from the signal source and generating packets containing these signals; first and second photoelectric modules for transmitting and receiving the multiple minimized differential data signals and the packets as optical signals; a second microcontroller unit for generating the clock index and the multiple differential signals from the packets; and a clock data recovery circuit for receiving one of the multiple minimized differential data signals and receiving the clock index from the second microcontroller unit, and for recovering the clock signal having the specified frequency and synchronized to the multiple minimized differential data signals.

Abstract: A system for preventing faulty connection between PoC and PoE. The system includes a signal generating circuit for generating a detection signal of a detection format of a powered device. A signal feedback circuit is configured to receive the detection signal, and to send a feedback signal to a power source equipment. A signal detecting circuit is configured to detect the feedback signal. A first control switch is coupled to the signal detecting circuit. A second control switch is coupled to the signal feedback circuit.

Abstract: A video matrix controller, including a receiving module, a matrix switch module and a transmission module. The matrix switch module is coupled between the receiving module and the transmission module. The receiving module includes a first port interface and a first transceiver. The first port interface receives image data and converts it to a signal, and transmits it to the first transceiver. The transmission module includes a second transceiver and a second port interface. The signal is transmitted from the first transceiver to the matrix switch module. The second transceiver receives the signal, and the second port interface converts the signal to image data and transmits it to a corresponding external display device.

Abstract: A media switch device includes at least one media input port, a media input/extension composite port, a media output port, a media switch unit and a command switching and control module. The command switching and control module receives a response command from the media input/extension composite port to determine whether the media input/extension composite port is connected to a source device or to another media switch device. The command switching and control module receives a query command from the media output port to determine whether the media output port is connected to a sink device or to another media switch device. Related media switch system and method are also disclosed.

Abstract: A communication verification system is provided. The communication verification system includes a local transmitting-end unit, a remote receiving-end unit, and a repeater device. The local transmitting-end unit is set to a first computing mode and outputs an initial value. The remote receiving-end unit is set to a second computing mode. The repeater device receives the initial value from the local transmitting-end unit and outputs an initial value to the remote receiving-end unit according to the second computing mode. The repeater device receives and stores a computation result from the remote receiving-end unit, and then outputs a confirmation signal to the local transmitting-end unit according to the first computing mode. The repeater device outputs the computation result to the local transmitting-end unit for verification when the repeater device receives a query signal from the local transmitting-end unit.