Abstract: An audio device includes a first earbud and a second earbud, each of which is configured to establish respective first and second wireless links with an audio source, and receive, from the audio source, audio information over the respective first and second wireless links. The first earbud and the second earbud are further configured to communicate with one another over a third wireless link. At least one of the first earbud and the second earbud includes a measurement circuit configured to measure respective signal strengths of the first, second and third wireless links, a computation circuit configured to compute a difference in signal strengths of the first and second wireless links, and a determination circuit configured to determine an operating environment of the audio device based on the computed difference and further based on the signal strength of the third wireless link.

Abstract: A ferroelectric memory device and a semiconductor die are provided. The ferroelectric memory device includes a gate electrode; a channel layer, overlapped with the gate electrode; source/drain contacts, in contact with separate ends of the channel layer; a ferroelectric layer, lying between the gate electrode and the channel layer; and a first insertion layer, extending in between the ferroelectric layer and the channel layer, and comprising a metal carbonitride or a metal nitride.

Abstract: An audio device includes a first earbud and a second earbud, each of which is configured to establish respective first and second wireless links with an audio source, and receive, from the audio source, audio information over the respective first and second wireless links. The first earbud and the second earbud are further configured to communicate with one another over a third wireless link. At least one of the first earbud and the second earbud includes a measurement circuit configured to measure respective signal strengths of the first, second and third wireless links, a computation circuit configured to compute a difference in signal strengths of the first and second wireless links, and a determination circuit configured to determine an operating environment of the audio device based on the computed difference and further based on the signal strength of the third wireless link.

Abstract: A control system for an autonomous vehicle is configured to perform a cabin air flush. The autonomous vehicle includes one or more computing devices in communication with a heating, ventilation, and air conditioning (HVAC) system. The one or more computing devices are configured to determine a first ride performed by the autonomous vehicle has ended; determine that conditions are appropriate for a cabin air flush of a cabin of the vehicle; turn off air recirculation in the cabin to open one or more vents of an HVAC system of the vehicle; turn one or more fans of the HVAC system to a maximum level for a set amount of time; and after the set amount of time has elapsed, cause the one or more vents and the one or more fans to switch to a default state.

Abstract: A mobile audio stream broadcasting method has steps as follows: establishing a fist Bluetooth (BT) connection between a mobile device and at least one of a plurality of BT speakers; detecting connection signal strength and designating the BT speaker with maximum of connection signal strength as a first BT target speaker; establishing a second BT connection; transmitting an audio stream data to the first BT target speaker for broadcasting music via the second BT connection; detecting connection signal strength of the first BT target speaker continuously and automatically via the first BT connection; determining whether connection signal strength of the first BT target speaker is lower than a preset threshold value; if connection signal strength of the first BT target speaker is lower than the preset threshold value, then disconnecting the first and the second BT connections between the mobile device and the first BT target speaker.

Abstract: A mobile audio stream broadcasting method has steps as follows: establishing a fist Bluetooth (BT) connection between a mobile device and at least one of a plurality of BT speakers; detecting connection signal strength and designating the BT speaker with maximum of connection signal strength as a first BT target speaker; establishing a second BT connection; transmitting an audio stream data to the first BT target speaker for broadcasting music via the second BT connection; detecting connection signal strength of the first BT target speaker continuously and automatically via the first BT connection; determining whether connection signal strength of the first BT target speaker is lower than a preset threshold value; if connection signal strength of the first BT target speaker is lower than the preset threshold value, then disconnecting the first and the second BT connections between the mobile device and the first BT target speaker.