User input back channel from a wireless sink device to a wireless source device for multi-touch gesture wireless displays

摘要

As part of a communication session, a wireless source device can transmit audio and video data to a wireless sink device, and the wireless sink device can transmit user input data received at the wireless sink device back to the wireless source device. In this manner, a user of the wireless sink device can control the wireless source device and control the content that is being transmitted from the wireless source device to the wireless sink device. The input data received at the wireless sink device can be a multi-touch gesture.

主权项

1. A method of transmitting user input data from a wireless sink device to a wireless source device, the method comprising:
receiving video data, at the wireless sink device, from the wireless source device; rendering the video data at the wireless sink device; obtaining user input data for a multi-touch gesture at the wireless sink device; generating a packet header; generating payload data, wherein the payload data associates user input data for a first touch input event with a first pointer identification and user input data for a second touch input event with a second pointer identification; generating a data packet comprising the packet header and the payload data; and transmitting the data packet to the wireless source device, wherein the data packet transmitted to the wireless source device controls the video data being received at the wireless sink device from the wireless source device.