With Sound-absorbing Means Patents (Class 181/151)
  • Patent number: 11259114
    Abstract: A sound outputting apparatus is provided. The sound outputting apparatus includes: a main body; and a loudspeaker accommodated in the main body. The loudspeaker includes: a vibration member configured to generate sound waves; and a sound guide having a first end connected to the vibration member, a second end having an open structure, a first surface between the first end and the second end, and a plurality of openings formed through the first surface along a longitudinal direction of the sound guide. The plurality of openings increase in size as distance from the vibration member increases.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Liam Kelly, Yoonjae Lee, Haekwang Park
  • Patent number: 11222648
    Abstract: A non-invasive ventilation voice amplification system includes a microphone module for placement in a non-invasive ventilation mask. The microphone module has a microphone element for detecting a patient's voice and a speaker for projecting the voice. The microphone module connects to a controller module that houses electronics for processing and amplifying the audio signal.
    Type: Grant
    Filed: May 11, 2020
    Date of Patent: January 11, 2022
    Inventors: Andrew S Hansen, Rian J. Wendling, Richard A. Kreifeldt
  • Patent number: 10986442
    Abstract: A wearable speaker includes a pair of speaker boxes that are attached on both ends of an attached band and a speaker unit and a passive radiator that are attached on each of the speaker boxes. The attached band is a neck hanging unit that is attachable on a neck of a user of the wearable speaker.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: April 20, 2021
    Assignee: SONY CORPORATION
    Inventor: Yoshikazu Ohura
  • Patent number: 10880637
    Abstract: Provided is a sound output apparatus including a driver configured to emit sound; a pipe including a plurality of holes that are aligned in a row in a side surface of the pipe and are configured to receive the sound emitted from the driver; and at least one cover covering the plurality of holes. Impedance values of the plurality of holes which are covered by the at least one cover are substantially equal to each other within a preset range.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dongkyu Park, Sangchul Ko, Donghyun Jung, Byeonggeun Cheon
  • Patent number: 10701491
    Abstract: A loudspeaker enclosure includes a fluid diode to control air flow into and/or out of the enclosure.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: June 30, 2020
    Inventor: Eric Jay Alexander
  • Patent number: 10667043
    Abstract: A sound outputting apparatus is provided. The sound outputting apparatus includes at least one loudspeaker, and a main body configured to house the at least one loudspeaker. Each of the at least one loudspeaker includes an acoustic transducer configured to generate a sound wave, and a sound guide part configured to directionally output the sound wave via a plurality of openings. A diameter of each of the plurality of openings is increased as a distance from the acoustic transducer increases.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: May 26, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Liam Kelly, Jae-kab Seo, Ho-seok Wey
  • Patent number: 10667036
    Abstract: Disclosed are a lattice type speaker and a lattice array speaker system having the same. A lattice type speaker according to the present invention comprises: a tweeter horn which has a quadrangular part forming an upper periphery thereof and four woofer frames provided at or inside a cut-off edge part of the quadrangular part, so that the tweeter horn is implemented as a lattice horn having a horn-shaped entire body configuration and a cross shape when viewed from above; a tweeter driving unit which is provided on a lower side of the tweeter horn and reproduces a high-pitched sound through the tweeter horn; four woofer horns provided inside the four woofer frames, respectively; and a woofer driving unit which is provided on a lower side of the four woofer horns and reproduces a low-pitched sound through the four woofer horns.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 26, 2020
    Inventor: Tae Hyung Kim
  • Patent number: 10659881
    Abstract: A mobile audio mesh distribution (MAD) system/method allowing synchronized audio distribution to modular audio modules (MAMs) and/or drone delivery aircraft (DDA) in mesh audio network (MAN) is disclosed. The system/method utilizes a computer control system (CCS) that communicates wirelessly using a plurality of RF transceivers (RFT) over a RF mesh network (RMN) with one or more MAM that are configured to independently communicate with each other and automatically determine if audio updates are required from the CCS. The MAM are configured to query other MAMs in the RMN to determine if a connected MAM has updated audio/text (UAT), and if so, to download the UAT and schedule audio playback on a speaker. Messages may be transmitted to the MAM in the event of an emergency, terrorist event, or a physical event detected (PED) using prerecorded or updated audio that trigger immediate or scheduled playback by the MAM.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: May 19, 2020
    Inventors: Andrew Alexander Maly, Viktor Yevgenievich Vlassov
  • Patent number: 10631086
    Abstract: An acoustic suspension speaker enclosure is filled with a heavy gas, which has a much lower sonic velocity than air. This allows the enclosure to operate at a much lower frequency, in direct proportional to the reduction in sonic velocity.
    Type: Grant
    Filed: January 1, 2019
    Date of Patent: April 21, 2020
    Inventor: Charles G. Bagg
  • Patent number: 10531170
    Abstract: A loudspeaker device includes a loudspeaker, a box, and a lid. The box is provided with an opening and accommodates the loudspeaker. The lid covers the opening of the box. The lid includes a grille with one or more hexagonal holes each having an opening area equal to the area of a circle with a diameter in a range from 6.0 mm to 9.0 mm, inclusive.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: January 7, 2020
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshimichi Kajihara, Takuji Miyamoto, Yuuki Izumi, Satoshi Koura
  • Patent number: 10497351
    Abstract: The present disclosure provides a packaging structure of acoustic absorbent. The packaging structure of acoustic absorbent, includes a housing with an accommodating cavity, the housing including a bottom wall and a warding wall extending from the bottom wall; acoustic absorbent filling the accommodating cavity; a welding bracket; and an air-permeable isolator located between the warding wall and the welding bracket for packaging the acoustic absorbent inside the accommodating cavity. The air-permeable isolator and the welding bracket are fixed through ultrasonic welding. In addition, the present disclosure also provide a speaker box using the packaging structure of acoustic absorbent disclosed.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: December 3, 2019
    Assignee: AAC Technologies Pte. Ltd.
    Inventors: Jie Zhu, Bin Zhao, Sheng Ye, Minmin Chen
  • Patent number: 10469895
    Abstract: A mobile audio distribution (MAD) system/method providing for synchronized audio distribution to modular audio modules (MAMs) is disclosed. The system/method utilizes a central audio synchronization module (ASM) that loads audio files onto audio playback recorders (APRs) such that the audio playback emitted from each APR is synchronized in time. These APRs are individually positioned within and electrically connected to a MAM that is positioned in a spatially diverse manner in a desired field of audio distribution. Each MAM is configured to be adaptable to removable physical fixation to a vertical standard such as a tripod, pole, tree, etc. Each MAM is configured with a speaker, amplifier, battery pack, APR, optional radio frequency receiver (RFR) in order to disseminate synchronized audio from the APR via the speaker. Each MAM may be removably interlocked with other MAMs via the use of one or more hermaphroditic plate connectors (HPC).
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: November 5, 2019
    Inventors: Andrew Alexander Maly, Rainer Jorg Fink, Michael John Latzel, Viktor Yevgenievich Vlassov, Garland Wayne Young
  • Patent number: 10440479
    Abstract: An electroacoustic device and a mobile terminal are provided. The electroacoustic device may include a box defining an opening; an electroacoustic component including a frame, a vibrating membrane and a driving assembly, whet the frame is installed inside the box, the vibrating membrane is assembled on the thine and covers the opening, the frame and the vibrating membrane define a chamber, the driving assembly is configured to drive the vibrating membrane to vibrate, and the frame defines a leaking channel, and partition nets set inside the box, wherein a space between the electroacoustic component and the box is divided into cavities by the partition nets, at least one cavity is filled with sound absorption material, and the cavities are communicated with the chamber through the leaking channel.
    Type: Grant
    Filed: August 17, 2018
    Date of Patent: October 8, 2019
    Assignee: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., LTD.
    Inventor: Bixiang Yan
  • Patent number: 10368160
    Abstract: The present application discloses a speaker box. The speaker box includes a lower cover; an upper cover engaging with the lower cover for forming an accommodating space; a speaker accommodated in the accommodating space, and including a diaphragm with a dome attached to the diaphragm; a front sound cavity formed by the diaphragm and the upper cover; and air adsorbent particles received in the front sound cavity. The dome forms at least one recess communicating with the front sound cavity, and the air adsorbent particles are received in the recesses.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: July 30, 2019
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Peng Qin, Wei Wei, Zhichen Chen
  • Patent number: 10348351
    Abstract: A smart phone acoustic enhancer provides a support body and sound enhancing acoustic passages ending in horns. The body allows either vertical or horizontal placement of the smart phone, and includes entry ports into the sound enhancement acoustic passages for both vertical and horizontal smart phone positions. The ports align with smart phone speakers in both vertical and horizontal smart phone positions and flow into the sound enhancement acoustic passages. The horns are formed at ends of the acoustic passages to improve an acoustic impedance match between a sound source and free air thereby improving the efficiency with which sound waves are transferred to the air. The body is preferably assembled from two pieces, both pieces made by injection molding.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 9, 2019
    Inventor: Adrian Rivera
  • Patent number: 10099424
    Abstract: An air adsorbing and sound absorbing structure with a first portion comprising a first material comprising an open-celled foam with an air-adsorbing material coupled to the foam, where the first portion has a first air adsorption capacity and a first density. There is a second portion fixed to or integral with the first portion, wherein the second portion comprises one or more of: a different material than the first material, a second air adsorption capacity that is different than the first air adsorption capacity, and a second density that is different than the first density.
    Type: Grant
    Filed: December 18, 2015
    Date of Patent: October 16, 2018
    Assignee: Bose Corporation
    Inventors: Lifun Lin, Jason Loureiro, Michael Tiene
  • Patent number: 10057678
    Abstract: The present invention aims to provide a microspeaker with enhanced low frequency characteristics, by arranging an adsorbent for adsorbing the air in a resonance space and defining a virtual back volume by the air adsorption of the adsorbent. According to an aspect of the present invention, there is provided a microspeaker enclosure with an air adsorbent, including a microspeaker, an enclosure with the microspeaker provided therein, the enclosure defining a resonance space, and an air adsorbent applied to the resonance space of the enclosure, wherein an air adsorption mole ratio per unit volume of the air adsorbent based on a change in the unit pressure is 40.6 mol/m3·atm.
    Type: Grant
    Filed: December 28, 2016
    Date of Patent: August 21, 2018
    Assignee: EM-TECH. Co., Ltd.
    Inventors: Joong Hak Kwon, Ghi Yuun Kang, Hwan Ock Choe
  • Patent number: 9939783
    Abstract: An electronic device includes a compound designed to raise a surface tension of a water-based solution. The electronic device may include a vent feature to allow air to pass through the vent feature such that the air reaches a component in the electronic device. The vent feature may include a first vent structure and a second vent structure, both of which combine to confine the compound. When the water-based solution passes through an electronic device opening, the water-based solution may reach the first vent structure. If a surface tension is sufficiently low, the water-based solution may pass through the first vent structure. However, the water-based solution may then reach the compound causing the compound to dissociate, forming form positive and negative ions that attract molecules of the water-based solution. Then, the water-based solution surface tension increases and does not pass through the first vent structure or the second vent structure.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: April 10, 2018
    Assignee: Apple Inc.
    Inventors: Alvin J. Hilario, Jason J. Huey, Moahni L. Maharaj
  • Patent number: 9942653
    Abstract: A narrow-angle directional microphone includes: a microphone case; an acoustic tube fit in the microphone case with a gap between the acoustic tube and the microphone case; a microphone element arranged at one end side of the acoustic tube with a clearance that allows a front acoustic terminal and a rear acoustic terminal to communicate into each other between the microphone element and the microphone case; and an acoustic resistance body having elasticity positioned over between the one end side of the acoustic tube and the microphone element to block a passage between the front acoustic terminal and the rear acoustic terminal, whereby adjustments of a degree of compression of the acoustic resistance body are achieved by changes to an interval between the acoustic tube and the microphone element.
    Type: Grant
    Filed: October 10, 2016
    Date of Patent: April 10, 2018
    Assignee: Kabushiki Kaisha Audio-Technica
    Inventor: Hiroshi Akino
  • Patent number: 9913025
    Abstract: The present invention relates to a high-efficiency, full range acoustic resonator that functions as a high musical definition loudspeaker. It does not require electrical filters (crossover filters). The electrical signal from the amplifier directly passes to a single speaker, without energy losses and added distortions. Further, the acoustic resonator of the present invention does not require a loudspeaker enclosure to accommodate the speakers.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: March 6, 2018
    Inventor: Martin Pedro Carrasco Zanella
  • Patent number: 9854339
    Abstract: A speaker system including a speaker device and a cabinet. The cabinet is composed of; a front wall having a substantially rectangular parallelepiped shape and is provided with a speaker device affixed thereto; a rear wall opposing to the front wall; and two pairs of side walls arranged between the front wall and the rear wall. A first duct communicating with the interior space of the cabinet is provided through the side wall of the cabinet. A first opening that makes the interior space of the cabinet communicated with a first opening is provided at an area that encompasses a center portion of the one side wall in the one pair of the side walls having the shorter mutual distance therebetween in the two pairs of the side walls.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: December 26, 2017
    Assignees: PIONEER CORPORATION, TOHOKU PIONEER CORPORATION, TECHNICAL AUDIO DEVICES LABORATORIES, INC.
    Inventors: Toru Nagatani, Tomohiro Suenaga, Haruki Takeda, Kiichirou Ohtomo
  • Patent number: 9838801
    Abstract: A unidirectional condenser microphone having a front opening portion and a rear opening portion for respectively passing sound waves to a front surface and a back surface of a diaphragm of a microphone unit, the unidirectional condenser microphone includes: an acoustic tube provided in the front opening portion; a first air chamber provided between the rear opening portion and the back surface of the diaphragm of the microphone unit, and having a predetermined acoustic capacity; and a second air chamber communicating into the first air chamber, and having an acoustic capacity larger than the predetermined acoustic capacity, wherein sensitivity to a direction of 0° with respect to a directional axis is improved by the first air chamber and the acoustic tube, and a proximity effect due to the sound wave from a direction of 180° with respect to the directional axis is prevented by the second air chamber.
    Type: Grant
    Filed: June 14, 2016
    Date of Patent: December 5, 2017
    Assignee: KABUSHIKI KAISHA AUDIO TECHNICA
    Inventor: Hiroshi Akino
  • Patent number: 9794386
    Abstract: Disclosed is a telephone headset that features a metalized anechoic chamber so that noises provided therein can be combatted with antiphase noises. In some embodiment, the anechoic chamber may be constructed of metallic flake mixed into or with a sound attenuating or absorbing material like, for example, silicone. Suitably, the headset can be adjusted to fit an inclusive range of head dimensions comfortably, the headsets may be wired directly or connected wirelessly to the user's phone to ensure operation and communication.
    Type: Grant
    Filed: February 1, 2017
    Date of Patent: October 17, 2017
    Inventors: Scott A. Moser, Carlos Francisco Montoya-Mejia
  • Patent number: 9712913
    Abstract: A gas adsorbing material is provided. Specifically, there is provided a molded matrix of a plurality of spherically-shaped gas adsorbing material. The individual spheres comprise particles of a highly porous gas adsorbing material and a binder. The plurality of spheres are mixed with a second binder material and molded into a desired shape for use in the back volume of an acoustic transducer such as a loudspeaker device, a microphone or a balanced armature receiver.
    Type: Grant
    Filed: April 15, 2016
    Date of Patent: July 18, 2017
    Assignee: Sound Solutions International Co., Ltd.
    Inventors: Christian Lembacher, William A. Ryan, Heribert Bauer
  • Patent number: 9706278
    Abstract: A wireless modular speaker is disclosed. According to one embodiment, the apparatus has an enclosure having a top plate, a bottom plate, a front face, a rear face, a first side face, and a second side face, where at least a portion of the enclosure has a cover. The apparatus also has a mounting hole, a gripping mechanism within the mounting hole configured to hold the enclosure in a fixed position, one or more loudspeakers, a battery to supply power to the one or more loudspeakers, a wireless module to connect the apparatus and another device and a sensor mechanism that detects the presence of other speakers near the apparatus.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: July 11, 2017
    Assignee: Mattel, Inc.
    Inventor: Robb Fujioka
  • Patent number: 9635455
    Abstract: An audio system that comprises an electro-acoustic transducer mounted onto a housing that forms a resonance volume which is at least partially filled with sound absorbing material, wherein the housing is realized with a deep-drawn foil at least partially filled with grains of the sound absorbing material.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: April 25, 2017
    Assignee: Sound Solutions International Co., Ltd.
    Inventors: Michael Schöffmann, Helmut Wasinger, Josef Herold, Mark Hannah
  • Patent number: 9621981
    Abstract: A speaker box is provided in the present disclosure. The speaker box includes a housing having a sound outlet, a top plate covering the housing, and a sound generator installed to the housing. A front sound chamber and a sound guide channel are formed between the housing and the top plate. The sound generator is configured for providing audible sound to the front sound chamber. The sound guide channel communicates with the front sound chamber, and is configured for guiding the audible sound to output from the sound outlet. An acoustic absorber is arranged within the sound guide channel.
    Type: Grant
    Filed: January 12, 2015
    Date of Patent: April 11, 2017
    Assignee: AAC TECHNOLOGIES PTE. LTD.
    Inventors: Fuhu Zhang, Chengliang Wang, Jiandong Tian
  • Patent number: 9576567
    Abstract: Disclosed, in general, are devices that provide a substantially sound-tight chamber over a sound source while absorbing fields of sounds from the sound source. In general, the devices feature: an anechoic chamber that is configured to receive a sound source in a substantially sound-tight manner; and an anechoic channel that is in fluid communication with the ambient atmosphere. The anechoic chamber is adapted to capture air containing sound energy generated by the sound source, and distribute the air about an internal surface area on the inside of the chamber, wherein the internal surface area is sufficiently large to dampen or otherwise absorb the sound energy. Preferably, the air is directed from the anechoic chamber through an anechoic channel extending therefrom to the ambient to further dampen or absorb the sound energy. In one configuration, the outer wall of the apparatus is configured to reflect ambient sounds.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 21, 2017
    Inventor: Scott A. Moser
  • Patent number: 9544670
    Abstract: One embodiment of the invention is directed to a process for assembly of a covered housing comprising placing a first frame strip coupled with a fabric portion, under a shoulder on a first end of a housing, pulling the fabric portion toward a second end of a housing, placing a second frame strip coupled with the fabric portion, under a shoulder on the second end of the housing, placing a third frame strip coupled with the fabric portion, under a first main body shoulder of the housing, and placing a fourth frame strip coupled with the fabric portion, under a second main body shoulder of the housing.
    Type: Grant
    Filed: November 20, 2012
    Date of Patent: January 10, 2017
    Assignee: Logitech Europe S.A.
    Inventors: David Yim, Steve McGarry
  • Patent number: 9430998
    Abstract: An apparatus includes an acoustic chamber, an agglomeration of acoustically adsorbing members in the acoustic chamber and suitably located substantially on or in a non-conductive support that comprises a substantially acoustically transparent material, and a transducer configured to generate acoustic waves which enter the acoustic chamber. Each acoustically adsorbing member is separated from neighboring members.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 30, 2016
    Assignee: Nokia Technologies Oy
    Inventor: Juha Reinhold Backman
  • Patent number: 9380387
    Abstract: A speaker is disclosed that can be positioned as either a right or left front surround or a right or left rear surround in any surround sound system. The speaker includes a housing including a first driver, a second driver, a third driver, and a fourth driver. A high pass filter is connected with the first and third drivers and the first and third drivers are wired having opposite polarities from one another such that the first driver is out of phase with the third driver by 180 degrees. A low pass filter is connected with a lattice filter, wherein the low pass filter is configured to shift a phase of an input signal ?90 degrees and the lattice filter is configured to shift the phase by adding +45 degrees thereby forming a ?45 degree phase shift. An output of the lattice filter is connected with the second and fourth drivers.
    Type: Grant
    Filed: August 1, 2014
    Date of Patent: June 28, 2016
    Assignee: Klipsch Group, Inc.
    Inventor: David S. Wilkes, Jr.
  • Patent number: 9060220
    Abstract: An audio speaker cabinet includes a side wall structure, a first wall, a second wall, a sound driver and a port structure. The first wall is fixed to a first end of the side wall structure. The second wall is fixed to the side interior surface of the side wall structure spaced apart from the first wall and spaced apart from a second end of the side wall structure. A portion of the side wall structure, the first wall and the second wall define a sealed audio chamber. Another portion of the side wall structure and the second wall define a non-sealed audio chamber. The sound driver is fixed to the second wall and covers a speaker opening therein. The port structure extends through the sealed audio chamber and an interior of the port structure is sealed relative to the sealed audio chamber.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: June 16, 2015
    Assignee: Nissan North America, Inc.
    Inventor: Kenneth Brian O'Neal
  • Patent number: 8991549
    Abstract: A three-dimensional air-adsorbing structure for use in a volume in which there is a time-varying acoustic field. The structure has a three-dimensional, unitary, skeletal, porous scaffold having scaffold openings distributed within its volume, where the scaffold openings make up at least about 50% of the volume of the scaffold, air-adsorbing material particles, and a hydrophobic binder that couples air-adsorbing material particles to each other to form agglomerates and couples particles and agglomerates to the scaffold. The structure has structure openings in the agglomerates and structure openings between agglomerates, such structure openings being open to the outside environment, wherein the cumulative volume of the structure openings that have an apparent diameter larger than about 0.
    Type: Grant
    Filed: June 22, 2014
    Date of Patent: March 31, 2015
    Assignee: Bose Corporation
    Inventor: Lifun Lin
  • Patent number: 8985268
    Abstract: A speaker enclosure may include a speaker enclosure frame with a back wall, a first, inner wall and a second, outer wall extending from the back wall. The first, inner wall may be longer than the second, outer wall such that a baffle attaches to the first, inner wall, but only attaches to the second, outer wall via the first, inner wall and the back wall.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: March 24, 2015
    Inventor: David A. Wilson
  • Patent number: 8989427
    Abstract: An earphone includes a first acoustic chamber with one or more of a reactive element and a resistive element for acoustically coupling the first acoustic chamber with an environment external to the earphone. The earphone includes an acoustic transducer and a second acoustic chamber separated from the first acoustic chamber by the acoustic transducer. A housing supports the earphone from the concha of a wearer's ear and extends the second acoustic chamber at least to an entrance of an ear canal of the wearer's ear. A port acoustically couples the first and second acoustic chambers.
    Type: Grant
    Filed: June 6, 2013
    Date of Patent: March 24, 2015
    Assignee: Bose Corporation
    Inventors: Ryan C. Silvestri, Jason Harlow, Kevin P. Annunziato
  • Patent number: 8885863
    Abstract: An object of the present invention is to provide a loudspeaker device which has a high moisture resistance and can further widens an audio range of low-frequency range sounds. To achieve the above object, a closed box loudspeaker device of the present invention includes a loudspeaker unit which is attached to an opening in a box and activated carbon fiber which is provided in the box to adsorb gas. The activated carbon fiber has plural pores, which are exposed on a surface of the activated carbon fiber and have a diameter of 2.0 nm or less, and a volume of the pores having the diameter of 2.0 nm or less occupies 60% or more of a volume of the entire pores, so that the loudspeaker device which simultaneously achieves both an enhancement of the moisture resistance and the widening of the audio range of the low-frequency range sounds can be provided.
    Type: Grant
    Filed: May 17, 2010
    Date of Patent: November 11, 2014
    Assignee: Visionarist Co., Ltd.
    Inventors: Yuji Takashima, Hiroyuki Naono
  • Patent number: 8857559
    Abstract: A speaker cabinet includes an outer shell, at least one inner shell, and a core material. The outer shell includes high tensile strength material and includes at least one aperture. The at least one inner shell includes high tensile strength material and includes an aperture configured to accept an audio driver. Each of the at least one inner shell corresponds to one of the at least one aperture of the outer shell. The core material includes a vibration absorbing material. The aperture of each inner shell is positioned adjacent to the corresponding aperture of the outer shell. Each inner shell is held in position by the core material, and each inner shell does not make direct mechanical contact with the outer shell.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: October 14, 2014
    Inventor: Chris Reviel
  • Patent number: 8848960
    Abstract: A cone speaker that outputs audio by transmitting to a truncated cone, the movements of a voice coil driven when an audio current is transmitted through a voice coil placed inside a magnetic circuit formed in a space that surrounds a pole piece. Inside a space between the back surface of a center cap attached to a central portion of the cone and the apical surface of the pole piece that faces the center cap, a first filling material composed of a flexible porous body with a low porosity fills the periphery of the space and a second filling material composed of a flexible porous body with a higher porosity than the first filling material fills the central portion thereof.
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: September 30, 2014
    Assignee: Genus Audio Corp.
    Inventor: Eiji Yamazaki
  • Patent number: 8794373
    Abstract: A three-dimensional air-adsorbing structure for use in a volume in which there is a time-varying acoustic field. The structure has a three-dimensional, unitary, skeletal, porous scaffold having scaffold openings distributed within its volume, where the scaffold openings make up at least about 50% of the volume of the scaffold, air-adsorbing material particles, and a hydrophobic binder that couples air-adsorbing material particles to each other to form agglomerates and couples particles and agglomerates to the scaffold. The structure has structure openings in the agglomerates and structure openings between agglomerates, such structure openings being open to the outside environment, wherein the cumulative volume of the structure openings that have an apparent diameter larger than about 0.
    Type: Grant
    Filed: March 30, 2013
    Date of Patent: August 5, 2014
    Assignee: Bose Corporation
    Inventor: Lifun Lin
  • Patent number: 8776944
    Abstract: An opening is formed in a ceiling lining of a vehicle cabin part. The diameter of the opening in the ceiling lining is smaller than a diameter of a speaker, which has a frame. The speaker is disposed at the opening, and a fixing screw is inserted into a fixing aperture formed in a central part of the speaker. A fixing screw is screwed to a screw hole formed in a reinforcing brace positioned at an inner side of a top plate proximate the ceiling of the vehicle. A central part of the speaker is fixed to the reinforcing brace while a circumferential periphery of the frame is pressed against a peripheral edge of the opening in the ceiling lining via a frame interposing material.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: July 15, 2014
    Assignee: Alpine Electronics, Inc.
    Inventors: Ryo Ito, Masami Imai, Takashi Kanari, Masami Anzai, Arata Tada
  • Patent number: 8627919
    Abstract: A speaker has a speaker unit and a box. The speaker unit has a speaker unit side terminal. The box includes a casing having an internal space, and a box side terminal arranged in the casing so as to be in close contact with the casing. Under the condition that the speaker unit is housed in the internal space, a first terminal serving as one of the speaker unit side terminal and the box side terminal has a projection, a second terminal serving as the other thereof surrounds and sandwiches an outer periphery of the projection from at least both sides, and the first terminal and the second terminal are electrically connected with soldering. Thus, it is possible to obtain the speaker which can improve workability on a connection between the speaker unit and the box and save a space, and the portable information terminal provided with the speaker.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: January 14, 2014
    Assignee: SANYO Electric Co., Ltd.
    Inventor: Hideki Hiwatashi
  • Patent number: 8630435
    Abstract: Apparatus for compensating for pressure changes in an acoustic transducer system includes a skeleton member having a predetermined configuration and adsorbent material having a regular structure and being supported on the skeleton member. The apparatus may include a plurality of members, each of the plurality of members having a plurality of hollows formed therein, at least one main surface of each of the plurality of members substantially facing and spaced apart from a main surface of an adjacent one of the plurality of members, and the adsorbent material may be provided within each of the plurality of hollows.
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 14, 2014
    Assignee: Nokia Corporation
    Inventors: Tim John Mellow, Asta Maria Karkkainen, Andrew John Flewitt
  • Patent number: 8558708
    Abstract: A battery-powered supplemental alert generator is disclosed that is adapted to be mounted in close proximity to, such as within 3 or 4 feet of, a conventional smoke, heat and/or fire detector/alert device. The supplemental alert generator operates in a relatively low power mode while listening for the nearby detector/alert device to generate a standard audible alert signal. Upon detecting that a monitored sound level has reached a particular threshold, the supplemental alert generator enters into a higher power analysis mode in which it analyzes the detected signal to assess whether it is an audible alert signal. If an audible alert signal is detected, the supplemental alert generator generates one or more supplemental alert signals, such as a 520 Hz audible square wave signal. The supplemental alert generator may be used to retrofit a house, hotel, or other building to comply with new standards or to otherwise increase the effectiveness of the existing detection/alert system.
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: October 15, 2013
    Assignee: InnovAlarm Corporation
    Inventors: David E. Albert, James J. Lewis, Landgrave T. Smith
  • Patent number: 8474250
    Abstract: An emission reduction device which may be removably affixed to an engine's exhaust system. The device comprises a cylindrical carcass with a beveled opening in a diagonal line in its proximal part. A bobbin is affixed in the distal portion of the carcass. A cylindrical-shaped fibrous blanket may be inserted in the carcass and the fibrous blanket may be wrapped in a wire mesh. A second fiber mesh formed into a cone may be removably inserted in the cylindrical-shaped fibrous blanket with the larger diameter of the cone positioned proximally.
    Type: Grant
    Filed: July 28, 2010
    Date of Patent: July 2, 2013
    Assignee: Sabertec L.L.C.
    Inventor: Sergio Varkala Sangiovani
  • Publication number: 20130126263
    Abstract: An opening is formed in a ceiling lining of a vehicle cabin part. The diameter of the opening in the ceiling lining is smaller than a diameter of a speaker, which has a frame. The speaker is disposed at the opening, and a fixing screw is inserted into a fixing aperture formed in a central part of the speaker. A fixing screw is screwed to a screw hole formed in a reinforcing brace positioned at an inner side of a top plate proximate the ceiling of the vehicle. A central part of the speaker is fixed to the reinforcing brace while a circumferential periphery of the frame is pressed against a peripheral edge of the opening in the ceiling lining via a frame interposing material.
    Type: Application
    Filed: September 26, 2012
    Publication date: May 23, 2013
    Inventors: Ryo Ito, Masami Imai, Takashi Kanari, Masami Anzai, Arata Tada
  • Patent number: 8360201
    Abstract: A sound absorber is formed by covering the opening of a housing with a vibration member having a flat shape or a film shape so as to define an air layer therebetween. The sound absorber is attached to the wall of a room such that the vibration member is positioned opposite to the wall with a prescribed space therebetween. Sound generated in the room particularly in low frequencies enters into the space between the vibration member and the wall so as to cause vibration of the vibration member due to the pressure difference between the sound pressure applied to the space and the internal pressure of the air layer, thus consuming energy of sound waves. Thus, it is possible to efficiently absorb low-frequency sound with a reduced thickness of the air layer.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: January 29, 2013
    Assignee: Yamaha Corporation
    Inventor: Rento Tanase
  • Patent number: 8356689
    Abstract: An improved structure for the compositely formed sound box consists of a plastic-made box with one-way opening and intensified rib and inlet components provided inside the box. The main feature is the bubbled one-piece soundproof layer inside the sound box to expand the overall structure of the sound box, reduce the thickness of the sound box, minimize the thickness of the shell, and upgrade the soundproof performance at the same time.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: January 22, 2013
    Assignee: Harman International Industries, Inc.
    Inventor: Chen-Hui Huang
  • Patent number: 8333261
    Abstract: A durable, high performance, compact subwoofer speaker cabinet having a first elongate speaker tube attached to at least a second elongate tube. The at least a second elongate tube is attached to the first elongate speaker tube using a flying bridge brace structure. The at least a second elongate tube being a sound port or another speaker.
    Type: Grant
    Filed: August 13, 2011
    Date of Patent: December 18, 2012
    Inventor: Ryan L. Barnes
  • Patent number: 8292023
    Abstract: An apparatus comprises an agglomeration of adsorbing members, each of the adsorbing members comprising a porous outer layer configured to enclose an amount of adsorbent material, the agglomeration being configured such that every cross-section through the agglomeration comprises at least one gap between adjacent adsorbing members.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: October 23, 2012
    Assignee: Nokia Corporation
    Inventor: Thomas Benedict Slotte
  • Patent number: 8205712
    Abstract: A loudspeaker enclosure has a first aperture in which a driver can be mounted, the driver having a first resonant frequency. A second aperture defines a port extending between the interior and the exterior of the enclosure. The port is tuned to a second resonant frequency. A sound absorbing element comprises at least one exponentially tapered horn having a mouth in communication with the interior of the enclosure. The horn has a cut-off frequency equal to or greater than the resonant frequency of the port, and preferably two to four times greater. The horn can be defined by tapering external walls of the enclosure, or by structures located within the enclosure which define a plurality of individual horns. The described enclosure combines the benefits of ported enclosures with those of enclosures employing tapered sound absorbing elements.
    Type: Grant
    Filed: September 18, 2008
    Date of Patent: June 26, 2012
    Inventor: Laurence George Dickie