Technologies for streaming device role reversal include a source computing device and a destination computing device coupled via a communication channel. The source computing device and destination computing device are each configured to support role reversal. In other words, the source computing device and the destination computing device are each capable of switching between receiving and transmitting digital media content over the established communication channel. The source computing device is configured to initiate the role reversal, pause transmit functionality of the source computing device, and enable receive functionality of the source computing device. The destination computing device is configured to receive a role reversal indication from the source computing device, locally process the content, transmit a content stream to the source computing device, and display the content stream on an output device of the source computing device. Other embodiments are described and claimed herein.

Technologies for streaming device role reversal include a source computing device and a destination computing device coupled via a communication channel. The source computing device and destination computing device are each configured to support role reversal. In other words, the source computing device and the destination computing device are each capable of switching between receiving and transmitting digital media content over the established communication channel. The source computing device is configured to initiate the role reversal, pause transmit functionality of the source computing device, and enable receive functionality of the source computing device. The destination computing device is configured to receive a role reversal indication from the source computing device, locally process the content, transmit a content stream to the source computing device, and display the content stream on an output device of the source computing device. Other embodiments are described and claimed herein.

Various embodiments are generally directed to continuous authentication of a user to a digital service based on activity of a contactless card positioned proximate to a computing device on which the digital service operates. For example, a series of periodic status messages may be provided between a client device and the contactless card to verify whether the contactless card remains active, wherein authorization to access the digital service continues while the contactless card is active, and terminates when the contactless card is inactive.

A wireless emergency stop system includes a machine safety device connected to a machine stop circuit for stopping operation of a machine when the machine stop circuit is activated. The machine safety device includes a wireless communication interface. The system also includes a mobile device controller configured to control operation of the machine, and a safety stop device. The safety stop device includes a wireless communication interface for wireless communication with the machine safety device, and an emergency stop switch configured to, when activated, transmit an emergency stop signal to the machine safety device to trigger an emergency stop of the machine. The mobile device controller is configured to link with the safety stop device via short-range wireless communication.

A wireless emergency stop system includes a machine safety device connected to a machine stop circuit for stopping operation of a machine when the machine stop circuit is activated. The machine safety device includes a wireless communication interface. The system also includes a mobile device controller configured to control operation of the machine, and a safety stop device. The safety stop device includes a wireless communication interface for wireless communication with the machine safety device, and an emergency stop switch configured to, when activated, transmit an emergency stop signal to the machine safety device to trigger an emergency stop of the machine. The mobile device controller is configured to link with the safety stop device via short-range wireless communication.

The present disclosure presents a communication device configured to removably attach to a mask, and to receive, transmit, and amplify sound and/or speech from a wearer.

The present disclosure presents a communication device configured to removably attach to a mask, and to receive, transmit, and amplify sound and/or speech from a wearer.

Embodiments of this application provide a service processing method and a device. The solution is as follows: A first device generates a first unified identity, where the first unified identity is used by the first device to request first service content of a target service from a service server, and the first service content is used to generate or update historical service information corresponding to the first unified identity. The first device sends the first unified identity to a second device after establishing a short-range wireless connection to the second device, where the first unified identity is further used by the second device to request second service content of the target service from the service server, the second service content is determined based on the historical service information, and the second service content is continuous with the first service content.

Embodiments of this application provide a service processing method and a device. The solution is as follows: A first device generates a first unified identity, where the first unified identity is used by the first device to request first service content of a target service from a service server, and the first service content is used to generate or update historical service information corresponding to the first unified identity. The first device sends the first unified identity to a second device after establishing a short-range wireless connection to the second device, where the first unified identity is further used by the second device to request second service content of the target service from the service server, the second service content is determined based on the historical service information, and the second service content is continuous with the first service content.

A device for displaying AR markings comprising a top and a base, with the top rotatably attached to the base, and the base configured to be held by a hand or placed on a fixed surface. The AR markings are positioned on the top such that when the top rotates with respect to the base, so do the AR markings. When the AR markings are scanned by an appropriate scanning and display device, such as a smart phone, a 3d image associated with the AR markings will be displayed on the display device as an augmented reality projection. When the top rotates with respect to the base, so too does the augmented reality projection.