A fixed speaker system comprising a speaker housing mountable in or to a ceiling, wall or floor; at least one speaker for outputting audio content, wherein each speaker comprises at least one speaker input and at least one speaker output; a processor configured to receive the or each speaker input and generate the or each speaker output; an amplifier coupled to the processor and configured to drive the speaker; a DC power input configured for direct electrical coupling with a mains power source; a power-over-ethernet (POE) interface module, comprising an interface housing that is removably connected to the speaker housing, wherein the module is configured to input power from a POE source to the DC power input.

A video switching system, which can be part of an audio video receivers (AVR), enables simultaneous routing of multiple independent video streams (e.g., 8K video streams) received at HDMI inputs of the AVR from digital media sources to multiple selected digital display devices.

A security system can be configured to mount to a power outlet. The security system can include an outwardly facing portion configured to face away from the power outlet and an inwardly facing portion having a first electrical prong and a second electrical prong that protrude into the power outlet to mount the security system to the power outlet. The security system can also include a detection system comprising a camera and a motion detector.

A voice inputting device inputs a voice operation of a user, and transmits voice data based on the voice operation to a first cloud server. The first cloud server receives the voice data from the voice inputting device, analyzes the received voice data, and determines an operational skill level of the user and the details of the voice operation. A second cloud server generates a control command for an air conditioner based on the operational skill level and the details of the voice operation determined by the first cloud server, and transmits the generated control command to the air conditioner.

An electronic device is provided. The electronic device includes a memory and a processor configured to move the electronic device, obtain an image and location of the external electronic device, identify the external electronic device based on the obtained image, transmit the plurality of control commands to the identified external electronic device, monitor a response of the external electronic device, store an identifier of a first control command set and the location of the external electronic device, wherein the first control command is based on the monitoring, and the first control command set includes the first control command that performs a pre-specified first operation, receive a first input, move the electronic device based on the received first input and the location, and transmit the first control command to the external electronic device based on the received first input and the identifier of the first control command set.

An operation control method for a household electrical appliance includes performing network configuration with a plurality of servers according to different network protocols; upon receiving a control instruction sent by one of the plurality of servers, determining a processing priority of the control instruction; and processing the control instruction according to the processing priority and a preset multi-protocol processing mechanism.

A voice wakeup method includes receiving a plurality of voice wakeup messages sent by a plurality of electronic devices, where each voice wakeup message includes a distance and a wakeup energy value; determining, based on distances and wakeup energy values in the plurality of voice wakeup messages from the plurality of electronic devices, whether energy attenuation of the wakeup word emitted by the sound source complies with an attenuation law of sound energy radiated by a point source; and when determining that the energy attenuation of the wakeup word emitted by the sound source does not comply with the attenuation law of the sound energy radiated by the point source, sending a wakeup forbidding instruction to the plurality of electronic devices.

A first server system is configured to communicate with a first client device through a first application executing on the first client device. The first server system determines that communication with the first client device through the first application has been lost due to the first client device entering an idle mode. The first server system receives a request from a second client device that triggers reestablishing communication with the first client device through the first application. In response, the first server system transmits a request to a second server system to wake the first client device from the idle mode. The first server system receives, from the first application on the first client device, an indication that communication has been reestablished between the first server system and the first application. The first server system transmits a control command to control the first client device.

An electronic doorbell can include an outer housing configurable to couple to a building. The doorbell can also include a camera coupled to the outer housing and a microphone coupled to the outer housing. The doorbell can also include a button coupled to the outer housing. The electronic doorbell can be configurable to wirelessly communicate with an appliance located within the building.

A method for a communication protocol that includes wideband access for low latency audio. A source device and a sink device establish a wireless communication link. The protocol for communicating via the wireless communication link includes a frame having a first deterministic portion and a second opportunistic portion. The source device transmits during the first deterministic portion of the frame, first data to the sink device. The source device determines whether a predetermined condition associated with the wireless communication link is satisfied. When the predetermined condition is satisfied, the source device transmits, during the second opportunistic portion of the frame, second data to the sink device.