TWI456978B

TWI456978B - High definition multimedia interface converting and connecting device with consumer electronic control translating functions

Info

Publication number: TWI456978B
Application number: TW100118614A
Authority: TW
Inventors: Yi Hsing Lien
Original assignee: Mitrastar Technology Corp
Priority date: 2011-05-27
Filing date: 2011-05-27
Publication date: 2014-10-11
Also published as: TW201249179A

Claims

A high-quality multimedia interface (HDMI) switching device having a consumer electronic control (CEC) translation function includes: a first connection interface for coupling at least one display device a second connection interface coupled to the first connection interface for coupling at least one signal source device; a storage unit for storing a display device command setting comparison table and a signal source device command setting comparison table, wherein The display device command setting comparison table includes multiple array display device command settings corresponding to a plurality of display devices of different brands and models, and the signal source device command setting comparison table includes a plurality of corresponding brands and models. a plurality of signal source device command settings of the signal source device; and a control circuit coupled to the first connection interface, the at least one second connection interface, and the storage unit for executing the display device command setting table Selecting at least one set of display device command settings corresponding to the display device The signal source device in the command setting table should be selected for at least the signal source device at least one group instruction set of a signal source device.

The high-quality multimedia video interface switching device of claim 1, wherein the control circuit receives at least one user input to select a device corresponding to the at least one signal source from the signal source device command setting comparison table. The at least one set of signal source device instructions are set.

The high-quality multimedia video interface switching device of claim 2, wherein the at least one set of signal source device command settings selected by the control circuit from the signal source device command setting table does not apply to When the at least one signal source device is selected, the control circuit further selects a common command setting of a group of signal source devices to perform an operation.

The high quality multimedia video interface switching device of claim 1, wherein the control circuit receives at least one user input to select the at least one group corresponding to the display device from the display device command setting comparison table. Display device command settings.

The high-quality multimedia video interface switching device of claim 4, wherein the at least one set of display device command settings selected by the control circuit from the signal source device command setting table does not apply to the When the device is displayed, the control circuit additionally selects a common command setting of a group of display devices to perform the operation.

The high-quality multimedia interface device as described in claim 1, further comprising: a monitoring unit coupled to the control circuit for monitoring a high quality corresponding to the at least one signal source device a high definition multimedia interface transition minimized differential signaling clock (HDMI TMDS clock) to generate a monitoring result to the control circuit; wherein the control circuit instructs the signal source device according to the monitoring result The at least one group of signal source device command settings corresponding to the at least one signal source device are selected in the setting comparison table.

The high-quality multimedia video interface switching device of the sixth aspect of the invention, wherein the high-quality multimedia video interface switching device sequentially transmits the corresponding at least one signal source device via the at least one second connection interface. a plurality of consumer electronic control power-on signals set by the plurality of signal source devices of the plurality of signal source devices of different brands and models; if the monitoring unit is at least in the plurality of consumer electronic control power-on signals After the consumer electronic control power-on signal is transmitted to the at least one signal source device and the pair of high-quality multimedia video interface is monitored to minimize the transmission of the differential signal clock, the control circuit selects to correspond to the at least one consumer electronic And controlling at least one set of signal source device command settings of the power on signal as the at least one set of signal source device command settings of the at least one signal source device.

The high quality multimedia video interface switching device of claim 7, wherein the monitoring unit does not monitor any one after the plurality of consumer electronic control power-on signals are transmitted to the at least one signal source device. When the high-quality multimedia interface minimizes the transmission of the differential signal clock, the control circuit determines that the setting has failed.

The high-quality multimedia interface device as described in claim 1, further comprising: a monitoring unit coupled to the control circuit for monitoring the potential of the hot plug device of the display device Generating a monitoring result to the control circuit; wherein the control circuit selects the at least one set of display device command settings corresponding to the display device from the display device command setting comparison table according to the monitoring result.

The high-quality multimedia video interface device according to claim 9, wherein the high-quality multimedia interface device transmits the display device sequentially to different brands and models via the first connection interface. The plurality of consumer electronic control power-on signals set by the plurality of display devices of the plurality of display devices; if the monitoring unit is at least one consumer electronic control power-on signal in the plurality of consumer electronic control power-on signals After being transmitted to the display device and monitoring the potential of the hot plug device pin of the display device to be high, the control circuit selects at least one set of display device commands corresponding to the at least one consumer electronic control power on signal The set of display device command settings are set as the display device.

The high quality multimedia video interface switching device according to claim 10, wherein the monitoring unit monitors the hot insertion of the display device after the plurality of consumer electronic control power-on signals are transmitted to the display device. When the potential of the pull-out device is low, the control circuit determines that the setting has failed.

The high-quality multimedia interface device of claim 1, comprising a plurality of second connection interfaces for respectively coupling a plurality of signal source devices; wherein the control circuit is configured to execute the signal source The device command sets the complex array signal source device command settings corresponding to the plurality of signal source devices selected in the comparison table.

The high quality multimedia video interface switching device of claim 1, wherein the display device is a television or a projector.

The high-quality multimedia video interface switching device of claim 1, wherein the at least one source device is a video playback device, an audio playback device or a multimedia playback device.