Crestron Electronics, Inc.

Mark Hrozenchik

Alexander J Marra

Ekin Binal

Joseph Sarrasin

Neil Hildick-Smith

A system and method to adjust power levels between interconnected loudspeaker assemblies is described herein, the system comprising: a primary loudspeaker assembly, and at least one secondary loudspeaker assembly interconnected with the primary loudspeaker assembly and adapted to receive an audio signal from the primary loudspeaker assembly; an interconnection verification circuit located in the primary loudspeaker assembly; and a controller located in the primary loudspeaker assembly adapted to receive the status signal from the interconnection verification circuit, wherein the controller comprises—at least one processor communicatively coupled to the interconnection verification circuit; a memory operatively connected to the at least one processor, wherein the memory stores computer-executable instructions that, when executed by the at least one processor, cause the at least one processor to execute a method that comprises: generating an interconnection test signal by the interconnection verification circuit, wherein the interconnection test signal determines if the primary loudspeaker assembly is properly connected to the at least one secondary loudspeaker assembly; generating a connected status signal if the interconnection test signal determines that the primary loudspeaker assembly is properly connected to the at least one secondary loudspeaker assembly; receiving the connected status signal by the controller located in the primary loudspeaker assembly; and generating a first set of command signals by the controller to split power between the primary loudspeaker assembly and the at least one secondary loudspeaker assembly.

System and method for controlling the distribution of power between active loudspeaker assemblies and passive loudspeaker assemblies in an audio distribution system

Described herein are a method and security enhancing device for a bi-directional communications device, comprising: an M-digit display; a processor; a security software application (security App) adapted to be stored in memory and executed by the processor; an N-digit random number generator adapted to periodically generate a new N-digit random number and transmit the same to the processor and the security App, and wherein the processor is further adapted to transmit the N-digit random number to the display to display the N-digit random number; and a wireless communications transceiver and antenna (wireless communications device) adapted to transmit and receive wireless communications to and from, respectively, one or more personal electronic devices that are adapted to wireless communicate using identical communications protocols as the wireless communications transceiver, and wherein the security App is adapted to receive and store the N-bit digit random number that changes periodically, and wherein the security App is adapted to generate an offer to join the meeting message that is transmitted by the wireless communications transceiver to the one or more personal electronic devices, and wherein the security App is adapted to receive a request to join the meeting message from a first personal electronic device, wherein the request to join the meeting message comprises a field within which a currently displayed N-digit random number can be entered into (request to join N-digit random number), and wherein the security App is further adapted to compare the received request to join N-digit random number to the stored N-digit random number, and if they match, then the security App provides a communication to the processor to allow bi-directional communications with the personal electronic device that transmitted the received N-digit random number.

Rolling security code for a network connected soundbar device

Described herein is a speakerphone system (system) comprising: at least one loudspeaker, the loudspeaker adapted to generate mechanical vibrations on an enclosure of the system; at least one microphone (mic) adapted to convert an input sound acoustic signal into an input sound electrical signal and adapted to convert the mechanical vibrations into a mechanical vibrations electrical signal, and to output both of the input sound electrical signal and the mechanical vibrations electrical signal as a mic output signal; at least one mechanical vibration sensor (MVS) adapted to convert the mechanical vibrations to a mechanical vibration error signal to output the mechanical vibration error signal as an MVS output signal; and circuitry adapted to subtract the MVS output signal from the mic output signal and output the resultant signal as a speakerphone output signal.

Speakerphone system that corrects for mechanical vibrations on an enclosure of the speakerphone using an output of a mechanical vibration sensor and an output of a microphone generated by acoustic signals and mechanical vibrations

A method for substantially eliminating the effect of mechanical vibration on an audio input to a speakerphone system is provided herein, the method comprising: receiving mechanical vibrations and an input sound acoustic signal at a microphone (mic); converting the received mechanical vibrations and input sound acoustic signal into an input sound electrical signal, and outputting the same as a mic output signal; receiving mechanical vibrations at a mechanical vibration sensor (MVS); converting the received mechanical vibrations into a mechanical vibration error signal, and outputting the same as an MVS output signal; and generating a speakerphone system output signal by subtracting the MVS output signal from the mic output signal.

Method for use with a speakerphone system that corrects for mechanical vibrations

A method for calibrating a speakerphone system under test is provided herein, comprising: connecting a calibration unit to the speakerphone system under test (SSUT) via a communications interface, and wherein the SSUT further comprises a loudspeaker, microphone (mic), and mechanical vibration sensor (MVS); generating a first test signal by the calibration unit and transmitting the same to the SSUT; generating a first set of mechanical vibrations in response to the first test signal in the SSUT; and determining a calibration factor in regard to the first test signal and first set of mechanical vibrations by the calibration unit.

Method for use of a calibration system for calibration of a speakerphone system utilizing a separate calibration device

A method for substantially eliminating the effect of mechanical vibration on an audio input to a speakerphone system is provided herein, the method comprising: receiving an input sound acoustic signal at a microphone (mic); converting the received input sound acoustic signal into an input sound electrical signal, and outputting the same as a mic output signal; receiving mechanical vibrations at a mechanical vibration sensor (MVS); converting the received mechanical vibrations into a mechanical vibration error signal, and outputting the same as an MVS output signal; and generating a speakerphone system output signal by subtracting the MVS output signal from the mic output signal.

A speakerphone system is provide, comprising: at least one mechanical vibration sensor (MVS) adapted to convert mechanical vibrations in a speakerphone enclosure (enclosure) to a mechanical vibration error signal, and output the same as an MVS output signal; at least one microphone (mic) adapted to convert an input sound acoustic signal into an input sound electrical signal and to output the same as a mic output signal; and circuitry adapted to subtract the MVS output signal from the mic output signal and output the resultant signal as a speakerphone output signal.

Speakerphone system that corrects for mechanical vibrations on an enclosure of the speakerphone using an output of a mechanical vibration sensor and an output of a microphone

A speakerphone calibration system (system) is provided herein, comprising: a calibration unit adapted to generate at least one test signal, and further adapted to determine at least one calibration factor in response to at least one test signal, and wherein a first calibration factor characterizes a speakerphone system under test in regard to mechanical vibrations generated in the speakerphone system under test, the mechanical vibrations caused by a first test signal.

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Norwalk, CT, United States of America

Mark Hrozenchik