BenQ WDC10 White Paper - Page 4

The InstaShowTM S - WDC20 is an advanced version of WDC10/WDC10C. In addition to performing the wireless projection function through a Button, a BYOD (Bring Your Own Device) wireless projection application is also added to give the user the ability to use iOS or Android devices directly without using a Button to wirelessly project to the display device connected to the Host.The Host is not only a receiving device of the InstaShowTM Series, but also the core of the entire system.The Host is mainly responsible for receiving the streaming data transmitted from a Button and ensures A/V can be stable and correctly projected to the display device.The Host of InstaShowTM can be connected to 16 Buttons wirelessly simultaneously, and the Host of InstaShowTM S can connected to 32 Buttons simultaneously.The IT personnel in an enterprise can add the Host to the enterprise network through the LAN port on the Host.When the Host becomes one of the devices in the enterprise network, IT personnel can then connect to the Web UI of the Host through the network to manage the device status of the InstaShowTM Series remotely. Even if the Host becomes an enterprise LAN device, external threats still could not acquire the A/V streaming data between the Host and a Button through intrusion by phishing or penetration. A Button is the transmission device in the InstaShowTM system.We support two types of interfaces for the Button, HDMI and USB Type-C in which USB Type-C supports the DisplayPort image format through DisplayPort alternate mode.There are two buttons on the HDMI Button, one is an HDMI cable and the other is a USB Type A cable. The USB Type A cable is responsible for providing power to the Button and the HDMI cable is responsible for HDMI-formatted A/V data. HDMI devices have become quite popular and common on the market. For example most laptops, PS4, Blu-ray DVD players come equipped with HDMI ports. The USB Type-C Button only provides power to the system trough a single USB Type-C cable (supports DisplayPort alternate mode) and at the same time receives DisplayPort-formatted A/V data. Commonly seen USB Type-C devices include laptops. mobile devices and so on. Since some USB Type-C devices only support data transmissions by common file formats and does not support DisplayPort alternate mode.That means it cannot transmit the A/V formatted signals.Therefore before using the USB Type-C Button, the user has to make sure the USB Type-C port on the A/V source device supports DisplayPort alternate mode. Based on the functions of the first generation InstaShowTM, InstaShowTM S can moreover connect to HID devices (such as touchscreens, mice) through the USB Type A port on the Host to transmit control signals on the HID device to the Button through the USB cable.Therefor the USB cable on the Button in the InstaShowTM S not only provides power, but also supports receiving of HID commands to send back the HID commands received from the USB Type A port on the host with encryption wirelessly to the Button.After that the Button can send back the HID commands to the A/V source device through the USB Type A port connected to the A/V source device. Single click the Button, and the Button will encode and compress the DisplayPort A/V signals sent from HDMI or USB Type-C and then transmit to the display device connected to the Host through the wireless network. 4 January 2020