Abstract: A method for identifying video signal source is provided. The method includes the following steps. A first identification code is assigned to a first transmitter device by a receiver control unit of a receiver device. A first video data is transmitted by the first transmitter device. The first video data and a first identification image corresponding to the first identification code are combined as a first combined video data by the receiver control unit. The first combined video data is outputted to a display device by the receiver control unit.

Abstract: A multimedia system is provided. The multimedia system includes a plurality of transmission devices and a receiving-end device. Multiple transmission devices respectively has a microphone. The receiving-end device is coupled to the transmission devices. When the microphone of one of the transmission devices is enabled, the receiving-end device outputs at least one control signal to at least another one of the transmission devices to disable the microphone of the at least another one of the transmission devices.

Abstract: A video conference system including a transmitter device, a first receiver device and a second receiver device is provided. The transmitter device includes a transmitter control unit, a first network interface and a first wireless transmission module. The first receiver device includes a second wireless transmission module, a first receiver input interface and a first receiver video circuit. The second receiver device includes a second network interface and a second receiver video circuit. The first receiver video circuit combines the first video data and the second video data as a first combined video data. The first receiver video circuit transmits the first combined video data to a first display device, and outputs the first combined video data to the transmitter device, which outputs the first combined video data to the second receiver device through the first network interface and the second network interface.

Abstract: A transmitter device adapted to be coupled to an image providing device and a receiver device includes first and second conversion units, a wireless module, and a processing unit. The first conversion unit and the second conversion unit are configured to be coupled to the image providing device through an HDMI transmission cable and a Type-C transmission cable, respectively, so as to respectively receive a first video and audio stream and a second video and audio stream provided by the image providing device. The wireless module is connected to the receiver device through wireless communication. The processing unit preferentially selects the first conversion unit to receive a first video and audio signal output by converting the first video and audio stream by the first conversion unit and transmits the first video and audio signal to the receiver device through the wireless module.

Abstract: A method for expanding functions of a conference system includes providing a first circuit board and a second circuit board disposed in the receiver, receiving a first wireless packet transmitted from the first transmitter merely through a second communication module of the second circuit board, controlling the second communication module for performing an unpacking process of the first wireless packet by a second processor of the second circuit board to generate first compressed media data, generating a first command signal by the second processor of the second circuit board for controlling a first processor of the first circuit board to receive the first compressed media data through a data channel, and decompressing the first compressed media data by the first processor for acquiring first media contents of the first transmitter.

Abstract: A projection device, a projection system and a method for calibrating projected image are provided. The projection device and an external projection device the same image source and respectively project an image and another image corresponding to the image source. The same portion of the image source where the two images overlap each other forms an overlapping area. The projection device includes a lens, a light shielding member and a processor. The light shielding member is disposed on the lens. The processor controls the light shielding member to selectively shade a partial area of the lens according to the brightness of the image source, wherein the partial area corresponds to the overlapping area.

Abstract: A data sharing method includes logging in a first account through a communication interface by a first receiver for establishing a link between the first receiver and a server corresponding to the communication interface, logging in a second account through the communication interface by a second receiver for establishing a link between the second receiver and the server corresponding to the communication interface, and transmitting image data from a first transmitter to the second receiver through the first receiver and the server for sharing the image data. The first receiver is linked to a first display. The second receiver is linked to a second display. The image data is shared with the first display and the second display.

Abstract: A data sharing method includes providing a receiver and at least one transmitter, changing a first hardware registration identification code of the at least one transmitter to a second hardware registration identification code of a virtual camera device corresponding to at least one communication software program by the receiver, and using the virtual camera device for converting at least one image data signal transmitted from the at least one transmitter to video stream data supported by the at least one communication software program after the receiver receives the at least one image data signal.

Abstract: A transmitter device applied to a conference system is disclosed. The conference system further includes a receiver device. The receiver device wirelessly receives an image signal transmitted by the transmitter device, and a display coupled to the receiver device displays the image signal. The transmitter device includes a memory storing an identity information corresponding to an authority of the transmitter device. When the transmitter device is coupled to an information processing device, the transmitter device transmits the identity information to the information processing device. An application driver of the information processing device determines the authority of the transmitter device according to the identity information.

Abstract: A conference system with low standby power consumption includes a transmitter, an image data source, a receiver, and a display device. The transmitter includes a battery for providing power, at least one link port for accessing data, and a processor coupled to the battery and the at least one link port. The image data source is used for transmitting the image data to the transmitter. The receiver is linked to the transmitter for receiving the image data. The display device is linked to the receiver for displaying the image data. When the transmitter and the image data source are electrically coupled, the processor ceases to use the battery of the transmitter and controls the image data source for providing power to the transmitter. When the transmitter and the image data source are separated, the processor uses the battery of the transmitter for driving firmware of the transmitter.

Abstract: A display system and a display device are provided. The display system includes a host device, a display device and an input device. The display device includes a display controller, a display panel and a USB hub. The display controller processes an image signal provided by the host device with a first processing mode and displays the processed image signal on the display panel. The USB hub is coupled to the host device. The input device is coupled to the USB hub. The input device forms a first signal input path with the host device via the USB hub and a second signal input path with the display controller via a signal line. The input device transmits the control signal via the signal line to cause the display controller to process the image signal with a second processing mode and display the processed image signal on the display panel.

Abstract: A light mixing module is provided. The light mixing module includes a first laser array, a second laser array, and one or more laser polarized fold mirrors. The first laser array is configured for emitting a plurality of polarized light beams having a first polarization state. The second array is configured for emitting a plurality of polarized light beams having the first polarization state. The second laser array is disposed opposite to the first laser array. The one or more laser polarized fold mirrors are disposed between the first laser array and the second laser array. The one or more laser polarized fold mirrors reflect the polarized light beams emitted by the first laser array and the polarized light beams emitted by the second laser array. Each one of the one or more laser polarized fold mirrors is configured to direct light beams from at least two different directions.

Abstract: A wireless transmission system includes a signal-transmitting device and a signal-receiving device. The signal-transmitting device is disposed in a remote-control apparatus for transmitting wireless signals wherein the remote-control apparatus is a mouse. The signal-receiving device is installed on an electronic apparatus to receive the wireless signals and trigger operations in response the wireless signals. The signal-receiving device includes a patch antenna including a dielectric substrate having a first surface and a second surface opposite to the first surface, a ground layer disposed on the first surface, and a radiating metal layer. The radiating metal layer is disposed on the second surface and includes a radiation receiving surface. A first position of the radiation receiving surface is separated from the ground layer by a first distance, and a second position of the radiation receiving surface is separated from the ground layer by a second distance less than the first distance.

Abstract: A video streaming transmission system and a transmitter device are provided. The video streaming transmission system includes a receiver device and a transmitter device. The receiver device is coupled to a display module. The transmitter device is coupled to an image providing device through a transmission line. The transmitter device includes a processing unit, a storage unit, and a wireless communication module. The storage unit is coupled to the processing unit. The wireless communication module is coupled to the processing unit, and is coupled to the receiver device in a wireless communication manner. The processing unit generates virtual extended display identification data and stores them in the storage unit, and provides the virtual extended display identification data to the image providing device through the transmission line, so that the image providing device recognizes multiple virtual displays coupled thereto, and outputs multiple video streams through the transmission line.

Abstract: A method for identifying video signal source is provided. The method includes the following steps. A first identification code is assigned to a first transmitter device by a receiver control unit of a receiver device. A first video data is transmitted by the first transmitter device. The first video data and a first identification image corresponding to the first identification code are combined as a first combined video data by the receiver control unit. The first combined video data is outputted to a display device by the receiver control unit.

Abstract: A method for controlling projectors includes identifying a first projector and a second projector by using a database, acquiring a first control code of the first projector and a second control code of the second projector after the first projector and the second projector are identified, and generating at least one control signal to the first projector and the second projector for controlling operational actions of the first projector and the second projector according to the first control code and the second control code.

Abstract: An audio compensation method is applied to a playback device which includes a first distance detector, a second distance detector, an audio output module and an operation processor. The operation processor executes the audio compensation method to acquire a projection distance and a relative angle of the playback device relative to a projection screen via the first distance detector and the second distance detector, to acquire an installation parameter of the playback device, to search at least one audio output setting from an audio setting table in accordance with the projection distance and the relative angle and the installation parameter, and utilize the audio output setting to drive the audio output module.

Abstract: A shelter and a sheltering apparatus of adjusting an assembly angle are applied for an assembling display apparatus with a first display and a second display. The shelter includes a bridging component, a first top member and a second top member. The bridging component includes a first lateral member and a second lateral member. The first lateral member is detachably connected to the first display. The second lateral member is rotatably assembled with the first lateral member and detachably connected to the second display. The first top member is disposed on an upper end of the first lateral member. The second top member is disposed on an upper end of second lateral member, and partly overlapped with the first top member in a variable manner for matching relative rotation between the first lateral member and the second lateral member.

Abstract: An optical engine device with a heat dissipation function suitable for providing projection light of a projector includes a heat conductive casing, a phosphor wheel structure and a heat dissipation module. The phosphor wheel structure is disposed in the heat conductive casing. The heat dissipation module includes a channel member and a flow generation device. The channel member is disposed corresponding to the phosphor wheel structure in the heat conductive casing and has a guide channel and a nozzle extending from an outlet of the guide channel and facing a back side of the phosphor wheel structure. The flow generation device is connected to an inlet of the guide channel to generate an airflow flowing into the guide channel and passing through the nozzle for forming an impact flow toward the back side of the phosphor wheel structure.

Abstract: A light source device with a heat dissipation function applied to a projector includes a light source, a heat conduction plate, a flow guide member, and a fluid driving device. The heat conduction plate is disposed on the light source and has a hole structure corresponding to a hot spot region of the light source. The flow guide member has a guide channel corresponding to the hole structure. The guide channel has wide inlet and a narrow outlet. The flow guide member is disposed on the heat conduction plate to make the narrow outlet aligned with the hole structure. The fluid driving device is disposed on the flow guide member and communicated with the wide inlet. The fluid driving device drives fluid to flow from the wide inlet into the guide channel and then pass through the narrow outlet for generating an impact flow toward the hole structure.