Intel Corporation

Apple Inc.

Matias Javier Almada

Xintian Eddie Lin

Qinghua Li

Songnan Yang

Methods and apparatus are described for ultrasound transmission. A bit packet is created from received data. A cyclic redundancy check (CRC) is added to the bit packet based on the input data. The bit packet is encoded with forward error correction. The encoded bit packet is block interleaved to create a bit stream. The bit stream is converted into symbols. Each symbol is mapped to a dual tone multi frequency (DTMF). A first audio buffer based upon the DTMF is created. The audio buffer is provided for output.

Robust ultrasound communication signal format

An embodiment of an audio controller device includes technology to control an output of a first audio signal from an audio output device in a human interface frequency range, where the human interface frequency range includes frequencies audible to humans, and control an output of a second audio signal from the audio output device in a device interface frequency range independent from the output of the first audio signal, where the device interface frequency range includes frequencies above an upper limit of the human interface frequency range. Other embodiments are disclosed and claimed.

Ultrasonic communication system with independent volume control for an audible frequency range

Apparatuses, methods and storage medium associated with identifying a physical distance using audio channels are disclosed herein. In embodiments, an apparatus may include a microphone associated with a first audio channel of a plurality of audio channels and a radio receiver associated with a second different audio channel of the plurality of audio channels. The apparatus may include one or more processors, devices, and/or circuitry to identify an amount of time between times of receipt of first and second representations of a signal received via the microphone over the first audio channel and via the radio receiver over the second audio channel, respectively. The amount of time may be usable to identify a physical distance between references associated with a remote source of the first and second representations and the apparatus, respectively. Other embodiments may be disclosed or claimed.

Growing community of inventors

Columbus, GA, United States of America

Matias Javier Almada