Piezoelectric Patents (Class 340/384.6)
  • Patent number: 10276001
    Abstract: A system includes a band, an attachment mechanism attached to the band, and one or more haptic devices included in the attachment mechanism. The attachment mechanism can attach the band to an electronic device. Additionally or alternatively, the attachment mechanism can attach the band to a wearer. The haptic device or devices are in communication with a processing device. At least one of the one or more haptic devices produces a haptic response based on an activation signal received from the processing device.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: April 30, 2019
    Assignee: Apple Inc.
    Inventors: Harry W. Smith, IV, Patrick Kessler, Camille Moussette, John B. Morrell
  • Patent number: 10246156
    Abstract: An audible warning device for a bicycle including a steerer column. The audible warning device comprises one or more sound generating components; a housing adapted to house at least one of the one or more sound generating components; and a mounting component for securing the housing to the steerer.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: April 2, 2019
    Assignee: VELO SCIENTIFIC INC.
    Inventor: David Bryant Snaith
  • Patent number: 10225668
    Abstract: A hearing assistance system includes a pair of left and right hearing assistance devices to be worn by a wearer and uses both of the left and right hearing assistance devices to detect the voice of the wearer. The left and right hearing assistance devices each include first and second microphones at different locations. Various embodiments detect the voice of the wearer using signals produced by the first and second microphones of the left hearing assistance device and the first and second microphones of the right hearing assistance device. Various embodiments use outcome of detection of the voice of the wearer performed by the left hearing assistance device and the outcome of detection of the voice of the wearer performed the right hearing assistance device to determine whether to declare a detection of the voice of the wearer.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: March 5, 2019
    Assignee: Starkey Laboratories, Inc.
    Inventor: Ivo Merks
  • Patent number: 10165358
    Abstract: In an embodiment, a transducer controller is configured to apply a damping signal to reduce energy stored in the transducer after the transducer has been driven with a drive signal to form a transmitted acoustic signal.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: December 25, 2018
    Assignee: SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
    Inventors: Ivan Koudar, Jan Ledvina
  • Patent number: 9772250
    Abstract: A leak detection sensor includes a transducer, the transducer including a base, a piezoelectric layer, and a conductive layer and at least two leads connected to the transducer. A method of making a leak detection sensor includes obtaining a transducer, the transducer including a base, a piezoelectric layer, and a conductive layer; and effecting a mounting hole such that the mounting hole is defined in the transducer. A jig includes a support and a punch.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: September 26, 2017
    Assignee: Mueller International, LLC
    Inventors: Werner Guenther Richarz, Andrea Myles, Shabbir Yusuf
  • Patent number: 9435768
    Abstract: A method of interrogating sensors of SAW type, which allows notably the gathering of physical measurements of parameters carried out by SAW sensors, the method for gathering the measurement of an SAW sensor comprising a first step of generating and emitting an electromagnetic signal corresponding to the dilated time-reversal of a dilation coefficient k, of an impulse response signature which is characteristic of the SAW sensor, a second step of gathering a signal received as echo originating from the SAW sensor, a third step of determining a maximum of cross-correlation of the signal received as echo during the second step, the first step being applied with a set of values of the dilation coefficient k in a determined domain, the measurement of a physical parameter then being determined by the dilation coefficient k for which the power or the amplitude of the signal gathered as echo is a maximum.
    Type: Grant
    Filed: August 17, 2012
    Date of Patent: September 6, 2016
    Assignee: SENSEOR
    Inventors: Sylvain Ballandras, Jean-Michel Friedt, Thibault Retornaz
  • Patent number: 9136075
    Abstract: Disclosed is a switch module located within a steering wheel of a vehicle that includes an input switch module, a feedback module, and a controller. The input switch module allows a driver to conduct a variety of switching operations by, for example, pressing the left, right, front, or back of the steering wheel, or by making a leftward or rightward torsional motion or a leftward or rightward diagonal motion with respect to the steering wheel. The switch module controller receives inputs from the input switch module that correlate to these switching operations, and outputs a signal to a vehicle device such as, for example, a head up display, and also to a feedback module, which provides a feedback response to the driver confirming the switching operation. The present invention allows the driver to control vehicle devices and systems while maintaining contact with the steering wheel, thereby improving vehicle safety.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: September 15, 2015
    Assignee: Hyundai Motor Company
    Inventor: Joo Young Chun
  • Patent number: 9019119
    Abstract: A method and apparatus for packaging surface acoustic wave transponders for use in down-hole or other extreme environmental applications is provided. An exemplary ID tag transponder may include a surface acoustic wave (SAW) piezoelectric device, wire bonds, antennae structure, an antenna reflector, a radome, and a base constructed of a conductive, non-magnetic metal or metal alloy adapted to withstand an extreme environment encountered in down-hole applications. The metallic base may have a notched lip or flange about its periphery that is adapted for pressure fitting into the milled cylindrical orifice located on the exterior surface of a tool asset. In some embodiments, an exemplary SAW piezoelectric device may be attached directly onto an antenna substrate and wire bonded directly to an antenna. An RF reflector is created inside an exemplary transponder tag device.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: April 28, 2015
    Assignee: HM Energy LLC
    Inventor: Duke Loi
  • Patent number: 9007190
    Abstract: A sensor for installation on a steering wheel includes a pressure sensitive material mounted on a base material of the steering wheel. The pressure sensitive material is configured to provide an electrical signal to a controller when pressure is applied. The controller provides a command to a vehicle system based on the electrical signal. The pressure sensitive material has at least one of a variable resistance and a variable capacitance based on the amount or type of pressure that is applied to the material. The electrical signal is based on the at least one of a variable resistance and a variable capacitance.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: April 14, 2015
    Assignee: TK Holdings Inc.
    Inventors: Jerome Bosch, David Andrews, Jason Lisseman
  • Patent number: 8933812
    Abstract: A signaling device that indicates actuation of a remotely located mousetrap comprises a base that supports the trap, a power supply, and a mounted electrical interface switch. The switch is held open by a non-conductive interrupter positioned between the switch contacts and connected to the bail of the trap. The bail dislodges the interrupter and closes its switch when the trap is actuated, producing a visual flashing light at the users location. The signaling device can be tested by a test actuator switch located at the users location. A tether clips the signaling device to the trap.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: January 13, 2015
    Inventor: William B Clifford
  • Patent number: 8773257
    Abstract: Disclosed are methods and devices that include a therapeutic fluid dispensing device (10) to deliver a therapeutic fluid into a body of a patient. The device includes a controller to control one or more of fluid delivery operations and notification operations, at least one auditory notifier (800) to produce one or more acoustic signals in response to application of one or more activation signals by the controller and a plurality of electrical contacts coupled to the at least one auditory notifier to enable the application of the one or more activation signals to the at least one auditory notifier. The device also includes at least one housing retaining the at least one auditory notifier therein, the at least one housing being structured to resonate at least one of the one or more acoustic signals produced by the at least one auditory notifier in response to application of at least one of the one or more activation signals.
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: July 8, 2014
    Assignee: Roche Diagnostics Operations, Inc.
    Inventors: Ofer Yodfat, Shai Ben-David, Danna Perlman
  • Patent number: 8676274
    Abstract: Devices, systems and methods are disclosed which relate to a wearable alert device that emits a physical stimulation upon receiving a signal from a wireless communication device. The wireless communication device is in wireless communication with the wearable alert device, and the wireless communication device sends alerts to the wearable alert device each time it receives an incoming call. The alert is received by the wearable alert device, which in turn emits the physical stimulation to the user wearing it.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: March 18, 2014
    Assignee: AT&T Intellectual Property I, L.P.
    Inventor: Kevin Ansia Li
  • Patent number: 8674817
    Abstract: In further development of U.S. Pat. No. 6,310,540 B1, an audible signal device including a microprocessor or microcontroller and a sounder element, or a microprocessor or microcontroller in conjunction with electronic circuitry such as discrete components, inductors, or IC's with a sounder element where the resulting sound pressure level is controlled by changing the drive signal's frequency, size, shape, and/or duty cycle.
    Type: Grant
    Filed: January 23, 2012
    Date of Patent: March 18, 2014
    Assignee: Mallory Sonalert Products, Inc.
    Inventors: Christopher M. Baldwin, Joshua K. Brown, Mark T. Monnett
  • Patent number: 8552845
    Abstract: A vehicle burglar alarm circuit includes a transformer having first to fourth taps, a center tap provided at a center point and output taps, wherein the number of coil turns between the first and second taps is greater than the number of coil turns between the third and fourth taps; and output taps connected with a sounding body. The circuit further includes a first and second power sources connected to the center tap, the second power source outputting a lower output voltage; a sounding body driving unit having first to fourth driving switches respectively connected to the first to fourth taps; and a controller which controls the sounding body driving unit. The first and second driving switches are alternately turned on/off when using the first power source, and the third and fourth driving switches are alternately turned on/off when using the second power source.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: October 8, 2013
    Assignee: Panasonic Corporation
    Inventors: Yutaka Abe, Keizo Nishikawa
  • Publication number: 20110241850
    Abstract: A sensor for installation on a steering wheel includes a pressure sensitive material mounted on a base material of the steering wheel. The pressure sensitive material is configured to provide an electrical signal to a controller when pressure is applied. The controller provides a command to a vehicle system based on the electrical signal. The pressure sensitive material has at least one of a variable resistance and a variable capacitance based on the amount or type of pressure that is applied to the material. The electrical signal is based on the at least one of a variable resistance and a variable capacitance.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Inventors: Jerome BOSCH, David ANDREWS, Jason LISSEMAN
  • Publication number: 20110221583
    Abstract: Disclosed are methods and devices that include a therapeutic fluid dispensing device (10) to deliver a therapeutic fluid into a body of a patient. The device includes a controller to control one or more of fluid delivery operations and notification operations, at least one auditory notifier (800) to produce one or more acoustic signals in response to application of one or more activation signals by the controller and a plurality of electrical contacts coupled to the at least one auditory notifier to enable the application of the one or more activation signals to the at least one auditory notifier. The device also includes at least one housing retaining the at least one auditory notifier therein, the at least one housing being structured to resonate at least one of the one or more acoustic signals produced by the at least one auditory notifier in response to application of at least one of the one or more activation signals.
    Type: Application
    Filed: September 3, 2009
    Publication date: September 15, 2011
    Inventors: Ofer Yodfat, Shai Ben-David, Danna Perlman
  • Publication number: 20110187541
    Abstract: Provided is an audible alarm device including a piezoelectric buzzer, which is capable of suppressing wasted current consumption not contributing to increased sound pressure of the piezoelectric buzzer. The audible alarm device includes: a piezoelectric buzzer; a coil connected in parallel to the piezoelectric buzzer; a current limiting means for adjusting a current supply period for the piezoelectric buzzer and the coil, and limiting a current to the coil during current supply; and a control circuit for controlling on/off time of the current limiting means.
    Type: Application
    Filed: January 24, 2011
    Publication date: August 4, 2011
    Inventor: Takahiro Noguchi
  • Patent number: 7920069
    Abstract: A combined and integrated audible and visual signal. A signal case is constructed of a light transmissive material and includes an exposed front end cover with one or more sound transmitting apertures and a tubular wall extending transversely from the exposed end cover for extending through a hole in a mounting panel. A transducer is mounted within the tubular wall and includes a diaphragm that is spaced from the exposed cover. Light sources are mounted to face the diaphragm. The tubular wall in the region between the cover and a plane transverse to the tubular wall through the diaphragm is, in the axial direction, smoothly continuous with no angled bends.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: April 5, 2011
    Assignee: Floyd Bell Inc.
    Inventors: Thomas Shain, Heather Gregg
  • Patent number: 7728716
    Abstract: A piezoelectric buzzer includes a housing unit, a buzzer unit, and first and second terminals. The housing unit includes first and second housings coupled together. The second housing includes a base plate and a pair of spaced apart insert seats, each of which protrudes inwardly from the base plate toward the first housing and is formed with an insert hole. The buzzer unit is disposed in the resonant chamber and includes a vibrating plate and a piezoelectric plate attached to the vibrating plate. The first and second terminals are inserted respectively into the insert holes of the insert seats, and have a respective connection section extending outwardly of the housing unit, and a respective extending section abutting against a respective one of the vibrating plate and the piezoelectric plate.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: June 1, 2010
    Assignee: China Steel Corporation
    Inventors: Cheng-Sheng Yu, Huey-Lin Hsieh, Tsai-Kun Huang, Jyh-Jang Wey, Wu-Song Chuang, Chun-Jung Lin
  • Publication number: 20100123595
    Abstract: A combined and integrated audible and visual signal. A signal case is constructed of a light transmissive material. The case includes an exposed front end cover with one or more sound transmitting apertures for transmitting of sound out of the case. The case also has a tubular wall extending transversely from the exposed end cover for extending through a hole in a mounting panel. A piezoelectric transducer is mounted within the tubular wall and includes a diaphragm that is spaced from the exposed cover a distance to form an audio enhancing cavity between the diaphragm and the cover. A circuit board is also mounted within the tubular wall and spaced from the diaphragm on the opposite side of the diaphragm from the cover. Light sources are mounted to a surface of the circuit board facing the diaphragm. The tubular wall in the region between the cover and a plane transverse to the tubular wall through the diaphragm is, in the axial direction, smoothly continuous with no angled bends.
    Type: Application
    Filed: November 20, 2008
    Publication date: May 20, 2010
    Applicant: Floyd Bell Inc.
    Inventors: Thomas Shain, Heather Gregg
  • Publication number: 20100102940
    Abstract: In further development of U.S. Pat. No. 6,310,540 B1, an audible signal device comprising of a microprocessor or microcontroller and a sounder element, or a microprocessor or microcontroller in conjunction with electronic circuitry such as discrete components, inductors, or IC's with a sounder element where the resulting sound pressure level is controlled by changing the drive signal's frequency, size, shape, and/or duty cycle.
    Type: Application
    Filed: October 23, 2008
    Publication date: April 29, 2010
    Inventors: Christopher M. Baldwin, Joshua K. Brown, Mark T. Monnett
  • Publication number: 20100060437
    Abstract: An operating control, in particular in a motor vehicle, wherein the operating control has at least one actuating element for actuating the operating control. The operating control comprises at least one sensor element operatively connected to the actuating element for registering an actuation, and at least one oscillator coil fixedly connected to the actuating element for emitting a mechanical feedback signal, in particular bending waves, through the actuating element. The feedback signal is haptically and/or acoustically perceivable, preferably simultaneously haptically and acoustically perceivable. The operating control includes controller element for activating the oscillator coil in case of actuation of the operating control.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 11, 2010
    Applicant: Dräxlmaier GmbH
    Inventors: Michael Steckel, Karsten Ruter, Raimund Kreis
  • Patent number: 7605686
    Abstract: An alerting system (202) for a communication device (100) is provided. The alerting system is designed to operate in a plurality of operating modes. The alerting system includes a transducer (204) and an electromechanical switch (106). The transducer transforms electrical impulses into vibrations. The electromechanical switch couples the transducer to a first component (206) of the communication device in a first operating mode. Further, the electromechanical switch couples the transducers to a second component (208) of the communication device in a second operating mode.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: October 20, 2009
    Assignee: Motorola, Inc.
    Inventors: Salomon Serfaty, Izak Avayu, Eyal Brami, Alexander Shmoukler
  • Patent number: 7551061
    Abstract: A sound generator and method of projecting sound that includes a piezoelectric buzzer secured to a tensioned, flexible surface of an inflatable object, the surface being under tension in response to variations of pressure within the object. The sound generator includes a sound source and a piezoelectric buzzer electrically connected with each other so that the sound source generates signals, the piezoelectric buzzer converts the signals into sounds and the tensioned, flexible surface amplifies the sounds.
    Type: Grant
    Filed: October 29, 2004
    Date of Patent: June 23, 2009
    Assignee: Sing-A-Tune Balloons, LLC
    Inventor: John A. Blackman
  • Patent number: 7536020
    Abstract: A wearable communication device includes a bone conduction actuator which is applicable for being in contact with a user's wrist, hand, back of the hand, finger or nail in order to transmit voice signals. The user inserts the user's finger into the user's ear canal, or touches the user's finger to a part near the user's ear, or puts the user's fingertip or nail on the user's ear canal so as to block the user's ear canal when the user uses the wearable communication device.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: May 19, 2009
    Assignee: Nippon Telegraph and Telephone Corporation
    Inventors: Masaaki Fukumoto, Yoshinobu Tonomura
  • Publication number: 20090121847
    Abstract: An apparatus and method for distinguishing between sensors that are to be wirelessly detected is provided. An interrogator device uses different, distinct time delays in the sensing signals when interrogating the sensors. The sensors are provided with different distinct pedestal delays. Sensors that have the same pedestal delay as the delay selected by the interrogator are detected by the interrogator whereas other sensors with different pedestal delays are not sensed. Multiple sensors with a given pedestal delay are provided with different codes so as to be distinguished from one another by the interrogator. The interrogator uses a signal that is transmitted to the sensor and returned by the sensor for combination and integration with the reference signal that has been processed by a function. The sensor may be a surface acoustic wave device having a differential impulse response with a power spectral density consisting of lobes.
    Type: Application
    Filed: November 7, 2008
    Publication date: May 14, 2009
    Inventors: Leland P. Solie, Jacoueline H. Hines
  • Publication number: 20090033473
    Abstract: A piezoelectric buzzer includes a housing unit, a buzzer unit, and first and second terminals. The housing unit includes first and second housings coupled together. The second housing includes a base plate and a pair of spaced apart insert seats, each of which protrudes inwardly from the base plate toward the first housing and is formed with an insert hole. The buzzer unit is disposed in the resonant chamber and includes a vibrating plate and a piezoelectric plate attached to the vibrating plate. The first and second terminals are inserted respectively into the insert holes of the insert seats, and have a respective connection section extending outwardly of the housing unit, and a respective extending section abutting against a respective one of the vibrating plate and the piezoelectric plate.
    Type: Application
    Filed: August 1, 2007
    Publication date: February 5, 2009
    Applicant: CHINA STEEL CORPORATION
    Inventors: Cheng-Sheng Yu, Huey-Lin Hsieh, Tsai-Kun Huang, Jyh-Jang Wey, Wu-Song Chuang, Chun-Jung Lin
  • Patent number: 7474208
    Abstract: One aspect of the invention is a system for locating an object. The system may include, for example, an object electromagnetic receiver, an audio amplifier, an audio transducer, and an object microprocessor coupled to the object electromagnetic receiver and the audio amplifier. The object microprocessor is configured to ascertain whether a valid activation signal has been received by the object electromagnetic receiver, and if so, read a digital sound file, and ascertain whether the signal strength of the received valid activation signal is above a first threshold. If the signal strength is not above the first threshold, the object microprocessor outputs a maximum sound level indicator signal; and if the signal strength is above the first threshold, the object microprocessor outputs a second tier sound level indicator signal.
    Type: Grant
    Filed: May 10, 2006
    Date of Patent: January 6, 2009
    Inventor: Richard Ira Klein
  • Publication number: 20080303644
    Abstract: A sounder assembly is provided for a personal alert safety system (PASS). The sounder assembly includes a housing and a piezoelectric assembly compressively held in the housing such that a sound chamber is defined by the housing and the piezoelectric assembly. The housing radially expands and contracts relative to the piezoelectric assembly based on temperature changes.
    Type: Application
    Filed: June 7, 2007
    Publication date: December 11, 2008
    Inventor: Jeffrey L. Landis
  • Patent number: 7439872
    Abstract: The present invention is related to a method for signaling the status of a mobile device, said mobile device comprising a user input interface, a storage including status information of said device and a signal generator, comprising the steps of receiving a status request from said user input interface, retrieving at least one status information from said storage according to said received status request, and which is characterized by generating an output signal by said signal generator, wherein said output signal comprises at least one non-visual signal component, said non-visual signal component being indicative of said retrieved at least one status information.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: October 21, 2008
    Assignee: Nokia Corporation
    Inventor: Miska Hiltunen
  • Patent number: 7385482
    Abstract: An electro-optical device includes a display section that has a display region, a plurality of sound-production bodies that are disposed to overlap the display section and produce sound, and a first frame that is disposed between the display section and the sound-production bodies and holds the display section. The first frame forms air spaces for the plurality of sound-production bodies. In the first frame, sound-guiding paths and sound-releasing holes are formed to correspond to the plurality of sound-production bodies, respectively.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: June 10, 2008
    Assignee: Seiko Epson Corporation
    Inventor: Hiroshi Wada
  • Publication number: 20080129470
    Abstract: A directional acoustic device configured for producing a directional output along an acoustic axis, including at least one transducer configured to create at least two wave trains which are directed along differing pathways by at least one wave guide, and so disposed that in directions more than ninety degrees off the acoustic axis the SPL of the output is greatly diminished by cancellation effects between the wave trains; improvement over previous gradient and quarter-wave pipe directional systems being enabled.
    Type: Application
    Filed: September 14, 2007
    Publication date: June 5, 2008
    Applicant: American Technology Corporation
    Inventors: James J. Croft, Wensen Liu, Clifton Wynn Thompson
  • Patent number: 7334735
    Abstract: A smart card comprising: a memory for storing information; at least one transmitting or receiving antenna; and a low frequency circuit, for handling information associated with said antenna and said memory, which information is modulated at a modulation frequency of between 5 kHz and 100 kHz. Preferably the antenna is an acoustic antenna.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: February 26, 2008
    Assignee: BeepCard Ltd.
    Inventors: Amit Antebi, Alon Atsmon, Zvi Lev, Moshe Cohen
  • Patent number: 7201996
    Abstract: A sound generating device is mounted in a recess formed in a case, and a battery is mounted on the case. A pair of terminals are provided on the underside of the case. A pair of leads connect a pair of electrodes of the battery with the terminals.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: April 10, 2007
    Assignee: Citizen Electronics Co., Ltd.
    Inventor: Keita Watanabe
  • Patent number: 7148789
    Abstract: An electronic device (100) comprises a housing (112), an input (118, 122) coupled mechanically to the housing for receiving data, an output (114, 118) coupled mechanically to the housing for presenting information to a user of the electronic device in at least one of an audio and visual mode, an electronic circuit (210) coupled mechanically to the housing for providing intelligent operations that receives the data from the input and provides the information to the output, and at least two electromechanical transducers (226), each providing a tactile alert to the user in response to the data, the tactile alerts occurring simultaneously or in succession.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: December 12, 2006
    Assignee: Motorola, Inc.
    Inventors: Daniel J. Sadler, Michael E. Caine, Angela Chang, Xunhu Dai, Claudia Jensen, Daniel Zindel
  • Patent number: 7130664
    Abstract: The present invention provides a remote notification device in electronic communication with a user's personal communication device that alerts the user that the personal communication device is receiving an incoming telecommunications signal. A user who is not in operable contact with the communication device is alerted to the incoming call, message, or page by the remote notification device, which is in operable contact with the user, and alerts the user with a suitable indication (e.g., visual, audible, and/or tactile). The remote notification device preferably permits the user to not alter his or her desired appearance in social situations. The remote notification device is easily concealable or integral to an article of clothing, piece of jewelry, piercing, or accessory that the user desires to wear or carry independent of the desire to be notified of incoming calls, messages, or pages.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: October 31, 2006
    Inventor: Daniel P. Williams
  • Patent number: 7106180
    Abstract: An acoustic warning or alerting system for directing an audible warning signal to at least one intended recipient, while reducing the chance that the warning signal will be heard by others within the proximity of the system. The system includes a modulator for modulating an ultrasonic carrier signal with a processed audio signal, a driver amplifier for amplifying the modulated carrier signal, and a parametric array of acoustic transducers for projecting the modulated and amplified carrier signal through a propagation medium for subsequent regeneration of the audio signal along a pre-selected projection path. The parametric array of audio transducers operates by employing the nonlinear interaction between high frequency sound components and the propagation medium to generate at least one highly directional beam of lower frequency sounds within the propagation medium.
    Type: Grant
    Filed: August 30, 2002
    Date of Patent: September 12, 2006
    Inventor: Frank Joseph Pompei
  • Patent number: 7098778
    Abstract: An Impact sensor assembly provides a modular housing for vehicle impact sensors. The assembly comprises an impact sensor, an upper housing member, a lower housing member and a connector for establishing an electrical connection between the assembly and an appropriate vehicle system. The assembly may further include electronics for processing signals received from the sensor. The lower housing member receives and retains the sensor, and closeably interacts with the upper housing member to encase the sensor. The assembly defines structural features that ensures its proper installation into a vehicle. The preferred embodiment assures proper functioning of deformation impact sensors. A method of installing the assembly provides a process for rapid and proper installation of the assembly into a vehicle.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: August 29, 2006
    Assignee: Autoliv ASP, Inc.
    Inventors: Paul K. Zoratti, Jeffrey A. Bochenek
  • Patent number: 7095313
    Abstract: A meter apparatus for a vehicle, includes a circuit board, a sound generating element mounted on one face of the circuit board, a back cover covering the face of the circuit board on which the sound-generating element is mounted, and a separate sound-generating element cap attached to the back cover and covering the sound-generating element in the state that the circuit board is covered with the back cover, the sound-generating element cap being adapted to adjust a sound pressure level of the sound-generating element.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: August 22, 2006
    Assignee: Calsonic Kansei Corporation
    Inventors: Saburou Gobe, Nobuhiro Kojima
  • Patent number: 7071816
    Abstract: An audible alert device includes a pulse width modulated signal generator. The audible alert device and method for manufacturing the audible alert device also provides resonant frequency and decibel peaking capabilities. Resonant frequency and decibel peaking routines may conducted at the time of manufacture, upon startup of the alarm or during operation of the alarm. The audible alert device may be programmed during a manufacturing step to exhibit a selected operation mode so that one circuit may be manufactured and programmed to operate in any of a number of operation modes or device configurations. A programming station allows an audible alert device to be programmed during a manufacturing step to exhibit a selected operation mode. Programming may occur by connection of the audible alert device to the programming device by one or more audible alert device power conductors.
    Type: Grant
    Filed: March 1, 2004
    Date of Patent: July 4, 2006
    Assignee: Electronic Controls Company
    Inventors: Tony J. Tewell, Tracy C. Lowder, James E. Barber
  • Patent number: 7049959
    Abstract: The present invention provides a non-power source type monitor device installed in a place where a non-power source system needs to be used or a place preferably suitable for the non-power source system, in which a quantity generated energy not lower than several ten times as much as an output of electric current obtained by usual piezoelectric power generating device using steel balls can be assuredly obtained by striking a piezoelectric ceramics element once. A piezoelectric power generating device is formed commonly with capable of automatically repeatedly striking the piezoelectric ceramics element so that a quantity of generated energy of a practical level can be assuredly ensured as a power source of such type monitor device.
    Type: Grant
    Filed: February 24, 2004
    Date of Patent: May 23, 2006
    Assignee: USC Corporation
    Inventor: Yasuhiro Sakai
  • Patent number: 7019621
    Abstract: A piezoelectric transducer comprises a piezoelectric component, an acoustic member attached to one of the surfaces of the piezoelectric component and a dampening material of low elastic modulus attached to one or both surfaces of the piezoelectric transducer. The piezoelectric component may comprise either an unimorph or a bimorph structure including a piezoceramic wafer made of lead zirconate titanate and a layer of dampening material sandwiched between the piezoelectric component and the acoustic member. The acoustic member comprises a surrounding wall portion and an end portion which form an acoustic chamber when the member is mounted on a surface of the piezoelectrie component. The end portion has an orifice to form a passageway from the chamber through the end portion to the outside of the member.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: March 28, 2006
    Inventors: Stanley E. Woodard, Robert L. Fox, Robert G. Bryant
  • Patent number: 6995659
    Abstract: A sound transducer comprises at least one sound unit based on at least one radially sound emitting diaphragm arranged in a substantially cylindrical or tubular form, the diaphragm including electromechanically converting material capable of creating sound by changing its physical state upon electrical excitation. In a single sound unit the diaphragm is arranged to be supported between an inner sound guiding sleeve and an outer sound guiding sleeve in order to form at least one axial acoustic channel between the diaphragm and at least one of the sleeves. At least at the exit side of the acoustic channel the axial ends of the diaphragm and the corresponding sound guiding sleeve are arranged to have mutual non-alignment in the plane perpendicular to the axis of the sound unit in order to reduce the acoustic mass that the acoustic channel represents. The invention further relates to a device with such a transducer.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: February 7, 2006
    Assignee: Nokia Corporation
    Inventor: Alberto Soto-Nicolas
  • Patent number: 6987445
    Abstract: The invention is an modified audible signal, such as a piezoelectric noise-making and audible signaling device, which further includes a hydrophobic covering material, such as polytetrafluoroethylene (PTFE). The hydrophobic covering material is known to be water resistant, but does not effect the sound of the audible signaling device, thereby delaying or preventing the failure of the audible signaling device from water corrosion.
    Type: Grant
    Filed: September 22, 2000
    Date of Patent: January 17, 2006
    Assignee: Mallory Sonalert Products, Inc.
    Inventors: George A. Burnett, Joshua K. Brown, Daniel W. O'Brien
  • Patent number: 6788188
    Abstract: A multi-function electronic warning horn system comprises a couple of horns (1, 2) and a microprocessor (6), integrated in an electronic module (16) comprising a voltage adjuster (13), an oscillator (17), power stages (3, 4) and a control circuit (7). Horns (1, 2) are controlled by either the push-button (5) of the steering wheel for the traditional function of acoustic signaling or by a coded signal transmitted to microprocessor (6) by the “intelligent” electronic unit or onboard computer of the vehicle for the function of buzzer.
    Type: Grant
    Filed: April 4, 2003
    Date of Patent: September 7, 2004
    Assignee: Fabbrica Italiana Accumulatori Motocarri
    Inventor: Alain Sague
  • Patent number: 6686833
    Abstract: In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal generation circuit comprising a plurality of signal data stored in a memory to generate a plurality of signals having mutually different frequencies, the plurality of signals at least including a signal, a frequency of which is equal to a resonant frequency causing the compound acoustic actuator to generate the vibration, a synthesizing means to synthesize a plurality of drive signals in accordance with the plurality of signal data so as to cause the compound acoustic actuator to generate the vibration, and a sweeping means to sweep the plurality of drive signals, repeatedly.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: February 3, 2004
    Assignee: NEC Corporation
    Inventor: Chiemi Takahashi
  • Patent number: 6617966
    Abstract: In a signal generation circuit for a compound acoustic actuator that generates a sound and a vibration in response to a frequency of a signal input to the compound acoustic actuator, the signal generation circuit comprising a plurality of signal data stored in a memory to generate a plurality of signals having mutually different frequencies, the plurality of signals at least including a signal, a frequency of which is equal to a resonant frequency causing the compound acoustic actuator to generate the vibration, a synthesizing means to synthesize a plurality of drive signals in accordance with the plurality of signal data so as to cause the compound acoustic actuator to generate the vibration, and a sweeping means to sweep the plurality of drive signals, repeatedly.
    Type: Grant
    Filed: October 10, 2001
    Date of Patent: September 9, 2003
    Assignee: NEC Corporation
    Inventor: Chiemi Takahashi
  • Patent number: 6617967
    Abstract: A piezoelectric transducer driving circuit has a main oscillator stage, a buffer circuit, and a voltage-doubling circuit. The main oscillator stage includes a frequency-swept signal generator that can be configured to provide different outputs to the buffers, which in turn provide the output to the voltage-doubling circuit, which supplies the piezoelectric transducer, causing it to mechanically deform and produce audible sounds of different types.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: September 9, 2003
    Assignee: Mallory Sonalert Products, Inc.
    Inventors: Christopher Baldwin, George Burnett, Daniel O'Brien
  • Patent number: 6559758
    Abstract: A sounder device includes a piezoelectric resonant transducer, an amplifier and a coupling transformer to drive the transducer, an electronic signal produced to provide an input signal to the amplifier, and in which the electronic signal producer includes at least two lower frequency oscillators, a logical “OR” circuit having inputs from each of the lower frequency pulse oscillators, a resonant frequency pulse oscillator having a higher frequency near the resonant frequency of the transducer, a logical “AND” circuit having a first input connected to the output of the logical “OR” circuit, a second input connected to the output of the resonant frequency oscillator, and having an output connected to the amplifier input.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: May 6, 2003
    Inventor: Charles Rey
  • Patent number: 6512450
    Abstract: The invention is an improved piezoelectric noise-making and audible signaling device which produces a distinctive 2 KHz tone that is more pronounced and significantly easier to perceive, especially in a noisy environment. The volume of the audible tone is amplified by using two or three sound-amplifying chambers or cavities.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: January 28, 2003
    Assignee: Mallory Sonalert, Products, Inc.
    Inventors: George Alan Burnett, Christopher Michael Baldwin