One or more sensors are configured to contextualize a series of user generated movements to control one or more electronic devices. For example, a set of earphones comprises one or more sensors for sensing a location of the earphones. The one or more sensors enable earphones such as a pair of bluetooth or earphones wirelessly coupled to a bluetooth enabled electronic device, the capability to understand the configuration of use of the earphones. Based on a location and use or non-use of the earphones, one or more contextual responses is able to be applied for a given action.

An electronic accessory apparatus and audible signal transmission method thereof are provided. The electronic accessory apparatus includes a type C USB connector, a first switch circuit, a second switch circuit, a grounding switch circuit and a first channel selector. The type C USB connector has a plurality of data pin sets, a first ground pin, and a second ground pin. The first switch circuit transports a data signal set or an audible output signal set to a first selected data pin set according to a first control signal. The second switch circuit transports the audible output signal set to the first selected data pin set according to the first control signal. The grounding switch circuit is turned on or cut off according to a second control signal. The first channel selector sets a signal transmission relation between the first audible input signal set and the first and second ground pins.

Disclosed are audio apparatuses and audio communication channel circuits. The circuit includes an audio connector, an identification circuit, a first and a second audio communication channel. An output terminal of the first channel is connected to one of a first and a second pin, an output terminal of the second channel is connected to the other, a first terminal of the identification circuit is connected to one of the first and second pin, and a second terminal of the identification circuit is connected to the other. The circuit further includes: a first pull-down resistor with a first terminal connected to the first channel and a second terminal connected to ground; and a second pull-down resistor with a first terminal connected to the second channel and a second terminal connected to ground. With the present disclosure, the type of hosts that may be compatible with the audio apparatus is enlarged.

An audio signal conveying power supply configured to provide an output voltage to an electrically powered helmet, an additional audio headset or both. The housing having an audio and power signal inlet port to receive audio signals and power from a vehicle and an audio and power signal outlet port or transmitting audio signals and power to an electrically powered helmet using an independent audio cable connecting between the audio and power signal inlet port to the audio and power signal. A control circuit connected the at the power converted to operate an on/off switch, an active noise reduction switch, a low battery light, a fault light, and a helmet power switch.

The present invention includes a system for alerting a headphone user that another individual is attempting to gain the user's attention. The system includes an alert receiver designed to easily mate with the headphones and an audio source. The alert receiver wirelessly communicates with an alert transmitter that can be manually operated by the individual. This system enables an individual to easily alert the headphone user without requiring either party have or use a telephone.

A sound masking system includes a self-amplified loudspeaker emitter unit, with a driver and enlarged ported enclosure, sufficient to provide a frequency range down to a low frequency, such as about 125 Hz. To deliver the power, the power distribution architecture includes audio power amplifiers in the emitter housing of each loudspeaker. Raw power is delivered to each emitter unit through a cable and connectors, such as an Ethernet cable and connectors, in the same cable with the sound masking and audio signals. Inside the emitter units are electronics that efficiently convert the raw power and low level signal to drive the loudspeaker directly. The power comes from a typical desktop power supply, from which the power is combined with the sound masking and audio signals using a power injector unit that distributes the combined power and signals to loudspeakers. The loudspeakers can connect to an individually addressed sound masking network.

An audio system (10) has a headphone unit (12) and a speaker unit (14). The headphone unit is configured to receive wirelessly transmitted input signals from which an audio output is derived. The headphone unit is provided with a first connector unit (20) and the speaker unit is provided with a second connector unit (22). The speaker unit is configured to permit the headphone unit to be docked with the speaker unit so that the first connector unit and second connector unit connect to enable transmission of signals from the headphone unit to the speaker unit to enable the speaker unit to provide an audio output based on wireless input signals received by the headphone unit.

Processes and devices for equalizing an audio system that is adapted to use a loudspeaker to transduce test audio signals into test sounds. The processes and devices can involve the use of infrared signals to convey information in one or both directions between the audio system and a portable computer device that captures test sounds, calculates audio parameters that can be used in the equalization process, and transmits these audio parameters back to the audio system for its use in equalizing audio signals that are played by the audio system.

An audio adjustment system is provided that can output a user interface customized by the provider of the audio system instead of the electronic device manufacturer. Such an arrangement can save both field engineers and manufacturers a significant amount of time. Advantageously, in certain embodiments, such an audio adjustment system can be provided without knowledge of the electronic device's firmware. Instead, the audio adjustment system can communicate with the electronic device through an existing audio interface in the electronic device to enable a user to control audio enhancement parameters in the electronic device. For instance, the audio adjustment system can control the electronic device via an audio input jack on the electronic device.

A modular speaker system, comprising an exoskeleton, configured to mechanically support and quick attach and release at least one functional panel and an electrical interface provided within the exoskeleton, configured to mate with a corresponding electrical connector of the functional panel. An optional endoskeleton is provided to support internal components. The system preferably provides a digital electronic controller, and the electrical interface is a digital data and power bus, with multiplexed communications between the elements of the system. The elements of the system preferably include at least one speaker, and other audiovisual and communications components. Multiple modules may be interconnected, communicating through the electrical interface. A base module may be provided to provide power and typical control, user and audiovisual interface connectors.