1
Eric Lindemann, John L Melanson: Binaural hearing aid. AudioLogic, Homer L Knearl, December 26, 1995: US05479522 (136 worldwide citation)

This invention relates to a hearing enhancement system having an ear device for each of the wearer's ears, each ear device has a sound transducer, or microphone, and a sound reproducer, or speaker, and associated electronics for the microphone and speaker. Further, the electronic enhancement of the ...


2
John L Melanson, Eric Lindemann: Digital signal processing hearing aid. AudioLogic, Fenwick & West, August 15, 2000: US06104822 (92 worldwide citation)

A digital signal processing hearing aid is disclosed having a plurality of digital signal processing means for processing input digital signals, and a selector switch manipulable by a user for choosing which of the processing means to utilize. Each of the digital signal processing means is designed ...


3
Eric Lindemann, John L Melanson: Hearing aid with in situ testing capability. AudioLogic, Fenwick & West, September 12, 2000: US06118877 (84 worldwide citation)

A hearing aid has a built in or internal test tone generator for providing test tones and noise for diagnostic tests to a user through the receiver of the hearing aid. Alternatively an external test tone generator may be coupled to the hearing aid and selectively coupled to the receiver of the heari ...


4
Eric Lindemann: Musical synthesizer capable of expressive phrasing. Eric Lindemann, November 13, 2001: US06316710 (81 worldwide citation)

The present invention describes a device and methods for synthesizing a musical audio signal. The invention includes a device for storing a collection of sound segments taken from idiomatic musical performances. Some of these sound segments include transitions between musical notes such as the slur ...


5
Eric Lindemann, John L Melanson, Nikolai Bisgaard: Digital hearing aid system. AudioLogic, Fenwick & West, May 26, 1998: US05757932 (73 worldwide citation)

A detachable digital binaural processing hearing aid comprised of a digital signal processor (DSP), two microphones, two receivers, a bi-directional communications link between each microphone/receiver and the digital signal processor, an analog-to-digital converter, and a digital-to-analog converte ...


6
Eric Lindemann, John Laurence Melanson: Noise reduction system for binaural hearing aid. AudioLogic, Homer L Holland & Hart Knearl, July 22, 1997: US05651071 (61 worldwide citation)

In this invention noise in a binaural hearing aid is reduced by analyzing the left and right digital audio signals to produce left and right signal frequency domain vectors and thereafter using digital signal encoding techniques to produce a noise reduction gain vector. The gain vector can then be m ...


7
Eric Lindemann: Dynamic intensity beamforming system for noise reduction in a binaural hearing aid. Homer L Holland & Hart Knearl, April 23, 1996: US05511128 (40 worldwide citation)

An audio signal in a hearing aid is enhanced by detecting the power of the desired audio signal and the power of the total audio signal, generating a power value and making a noise-reduction adjustment or no noise-reduction adjustment based on the power value. In one embodiment, the power value is a ...


8
Eric Lindemann, Jeffrey Barish: Parametric signal modeling musical synthesizer. EuPhonics Incorporated, Jennifer L Bales, Macheledt Bales & Johnson, April 28, 1998: US05744742 (39 worldwide citation)

A parametric signal modeling musical tone synthesizer utilizes a multidimensional filter coefficient space consisting of many sets of filter coefficients to model an instrument. These sets are smoothly interpolated over pitch, intensity, and time. The filter excitation for a particular note is deriv ...


9
Eric Lindemann, Thomas Lee Worrall: Continuous frequency dynamic range audio compressor. AudioLogic Incorporated, Jennifer L Macheledt Bales & Johnson Bales, August 1, 2000: US06097824 (31 worldwide citation)

An improved multiband audio compressor is well behaved for both wide band and narrow band signals, and shows no undesirable artifacts at filter crossover frequencies. The compressor includes a heavily overlapped filter bank, which is the heart of the present invention. The filter bank filters the in ...


10
James Mitchell Kates, John Laurence Melanson, Eric Lindemann: Integrated hearing aid performance measurement and initialization system. GN ReSound, Jennifer L Bales, Macheledt Bales & Heidmiller, September 14, 2004: US06792114 (26 worldwide citation)

A digital hearing aid according to the present invention is capable of measuring its own performance. The hearing aid includes a test signal generator for feeding a test signal into the hearing aid amplifier. The response to the test signal is acquired at a specific point in the hearing aid, dependi ...