Abstract: An improved loudspeaker system includes an asymmetrical array of dissimilar drivers, namely a first driver and a second complementary driver configured in an array and driven in parallel so that the measured on-axis frequency response and the output power (SPL) is improved as compared to a symmetrical array (with similar or matched midrange or mid-bass drivers), while retaining a flat tonal balance. This speaker system and method for voicing was discovered to provide lower distortion, improved frequency response and greater clarity as compared to the prior art or traditional (e.g., MTM) loudspeaker configurations.
May 23, 2014
Date of Patent:
January 3, 2017
DEFINITIVE TECHNOLOGY, LLC
Timothy A. Gladwin, Jason B. Cochrane, David Logan
Abstract: An electrodynamic acoustic transducer has a diaphragm and a frame with a pole piece carrying a bulbous waveguide tip which reduces or eliminates high frequency distortions caused by destructive interference within the transducer. The bulbous-tip structure clears the moving parts of the transducer and minimizes diffraction of sound energy, extending forward approximately to the plane defined by the outer periphery of the diaphragm when the diaphragm and voice coil are at rest. The bulbous-tip waveguide member extends radially outward above the central radiating area of the transducer diaphragm or cone so as to obscure the center portion of the diaphragm.
Abstract: A sound system configured to play audio files in a variety of indoor and outdoor environments is disclosed. The system includes a housing, a speaker, a power supply, and a mounting attachment that provides protection for sensitive system components and allow the system to be securely attached to a variety of surfaces and objects.
September 15, 2012
Date of Patent:
November 10, 2015
Definitive Technology, LLC
Ryan Andrew Minarik, Michael DiTullo, Quinn Slater Huffstetler, Cormac Eubanks, Anthony Meredeth
Abstract: Systems, devices, and methods for customizable reduction of perceived ambient sounds are disclosed. Customizable reduction can be achieved via an application operable in conjunction with an audio player or a headset having a microphone.
Abstract: A forward focused bipolar loudspeaker system includes a front-facing driver array and a rear facing driver array with substantially identical front-facing and rear-facing midrange or mid-bass drivers voiced and driven so that the measured SPL curves of each of the arrays, when measured individually, are tonally balanced. The front array and rear array have substantially identical on-axis and off axis frequency response and the rear array's output power (SPL) is reduced by, preferably, about 6 dB with respect to the output power produced by the front-facing array, while retaining a flat tonal balance for both the front and rear speakers, to produce a sound power ratio of about 2:1 as measured by comparing the front and back SPL levels of the speakers. This bipolar speaker system and method for voicing was discovered to provide greater clarity and improved localization while retaining the spacious envelopment of the bipolar sound field.