1
William A McCarty, Yadir Rodriguez: Wired, wireless, infrared, and powerline audio entertainment systems. KSC, Knobbe Martens Olson & Bear, January 24, 2012: US08103009 (443 worldwide citation)

A method and system for communicating audio signals between an input device and an output device via a network. The output device can include loudspeakers and headphones. In some embodiments an output device, for example a center channel speaker, transmits audio signals to other output devices. In s ...


2
William Tom Blank, Kevin M Schofield, Kirk O Olynyk, Robert G Atkinson, James David Johnston, Michael W Van Flandern: System and method for calibration of an acoustic system. Microsoft Corporation, Shook Hardy & Bacon, December 8, 2009: US07630501 (302 worldwide citation)

The present invention is directed to a method and system for automatic calibration of an acoustic system. The acoustic system may include a source A/V device, calibration computing device, and multiple rendering devices. The calibration system may include a calibration component attached to each ren ...


3
Barry Voroba, Dennis A Oberlander: Mass production auditory canal hearing aid. September 26, 1989: US04870688 (186 worldwide citation)

The in-the-canal hearing aid has patient selected physical components and patient selected electronic components. The construction of the hearing aid and the method of providing a hearing aid for a particular patient's hearing impairment are such that a patient may personally select the best suited ...


4
A Maynard Engebretson, Robert E Morley Jr, Gerald R Popelka: Hearing aids, signal supplying apparatus, systems for compensating hearing deficiencies, and methods. Central Institute for the Deaf, Senniger Powers Leavitt and Roedel, October 22, 1985: US04548082 (151 worldwide citation)

A hearing aid including a microphone for generating an electrical output from sounds external to a user of the hearing aid, an electrically driven receiver for emitting sound into the ear of the user of the hearing aid, and circuitry for driving the receiver. The circuitry drives the receiver in a s ...


5
Forrest S Mozer: Systems and methods of sonic communication. Sensory, Fountainhead Law Group PC, June 19, 2012: US08204238 (139 worldwide citation)

In one embodiment the present invention includes a method of wireless communication. The method comprises receiving a sonic signal and determining a sequence of sonic tones from a received sonic signal. The receiving includes receiving the sonic signal at an electronic device using a microphone. The ...


6
Toru Sasaki, Tetsunori Itabashi: Multi-speaker audio system and automatic control method. Sony Corporation, Wolf Greenfield & Sacks P C, March 9, 2010: US07676044 (112 worldwide citation)

A sound produced at the location of a listener is captured by a microphone in each of a plurality of speaker devices. A sever apparatus receives an audio signal of the captured sound from all speaker devices, and calculates a distance difference between the distance of the location of the listener t ...


7
William S Kincaid: Method and apparatus for automatically normalizing a perceived volume level in a digitally encoded file. Apple Computer, Beyer Weaver & Thomas, July 4, 2006: US07072477 (112 worldwide citation)

Automatically normalizing a perceived loudness for a digitally encoded audio track formed of a number of channels during playback on a multimedia asset player is described. A number of auditory selectivity frequency bands are selected and for each channel in the track, a power value for each of the ...


8
Fred D Waldhauer: Multi-band programmable compression system. Resound Corporation, November 21, 1989: US04882762 (112 worldwide citation)

A programmable low voltage multi-band compression system suitable for use with hearing aids is described. Received audio signals are processed by a band split filter which separates the received audio signal into a plurality of frequency bands. A plurality of compressors coupled to the band split fi ...


9
Douglas M Farrar: Method and apparatus for a speaker for a personal computer for selective use as a conventional speaker or as a sub-woofer. Apple Computer, Sawyer & Associates, June 8, 1999: US05910991 (111 worldwide citation)

A high quality speaker for use with a personal computer is used in two modes, first as a conventional, multi-function speaker for conventional computer audio output and second as a sub-woofer for use in combination with auxiliary speakers. The input of the speaker circuitry is adjusted according to ...


10
Russell J Welsh, John D Fourdraine: Apparatus and method for automatically monitoring broadcast band listening habits. Viewfacts, Faegre & Benson, September 4, 1990: US04955070 (110 worldwide citation)

An electronic monitor and system for automatically monitoring broadcast band listening habits and periodically collecting data at a central location. The electronic monitor includes a microphone circuit and a tuner circuit. The tuner circuit is tuned until a match is found between the microphone cir ...