With Auxiliary Flexible Membrane Patents (Class 340/388.3)
  • Patent number: 11103418
    Abstract: A stimulation device is provided in accordance with one embodiment. The stimulation device includes a chamber which has a flexible wall portion. A drive unit of the stimulation device is in physical communication with the flexible wall portion so as to cause deflections of the flexible wall portion in opposing directions, thereby resulting in a changing volume of the chamber. The changing volume of the chamber results in modulated positive and negative pressures with respect to a reference pressure. An opening of the stimulation device is for applying the modulated positive and negative pressures to a body part. The stimulation device includes a control device for controlling the drive unit.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 31, 2021
    Assignee: NOVOLUTO GMBH
    Inventor: Michael Lenke
  • Patent number: 11090220
    Abstract: A stimulation device is provided in accordance with one embodiment. The stimulation device includes a chamber which has a flexible wall portion. A drive unit of the stimulation device is in physical communication with the flexible wall portion so as to cause deflections of the flexible wall portion in opposing directions, thereby resulting in a changing volume of the chamber. The changing volume of the chamber results in modulated positive and negative pressures with respect to a reference pressure. An opening of the stimulation device is for applying the modulated positive and negative pressures to a body part. The stimulation device includes a control device for controlling the drive unit.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: August 17, 2021
    Assignee: NOVOLUTO GBHH
    Inventor: Michael Lenke
  • Patent number: 10874580
    Abstract: A stimulation device is provided in accordance with one embodiment. The stimulation device includes a chamber which has a flexible wall portion. A drive unit of the stimulation device is in physical communication with the flexible wall portion so as to cause deflections of the flexible wall portion in opposing directions, thereby resulting in a changing volume of the chamber. The changing volume of the chamber results in modulated positive and negative pressures with respect to a reference pressure. An opening of the stimulation device is for applying the modulated positive and negative pressures to a body part. The stimulation device includes a control device for controlling the drive unit.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: December 29, 2020
    Assignee: NOVOLUTO GMBH
    Inventor: Michael Lenke
  • Patent number: 10702447
    Abstract: A stimulation device is provided in accordance with one embodiment. The stimulation device includes a chamber which has a flexible wall portion. A drive unit of the stimulation device is in physical communication with the flexible wall portion so as to cause deflections of the flexible wall portion in opposing directions, thereby resulting in a changing volume of the chamber. The changing volume of the chamber results in modulated positive and negative pressures with respect to a reference pressure. An opening of the stimulation device is for applying the modulated positive and negative pressures to a body part. The stimulation device includes a control device for controlling the drive unit.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 7, 2020
    Assignee: NOVOLUTO GmbH
    Inventor: Michael Lenke
  • Patent number: 9107005
    Abstract: A speaker 10 includes: a plurality of piezoelectric diaphragms 11 and 12 each including a substrate and a piezoelectric element provided on at least one surface of the substrate; one or a plurality of connecting members 13 connecting the plurality of piezoelectric diaphragms 11 and 12 to each other such that the plurality of piezoelectric diaphragms 11 and 12 aligned from the piezoelectric diaphragm 11 located at a frontmost side of the speaker 10, in a thickness direction of the piezoelectric diaphragm 11, and the piezoelectric diaphragms 11 and 12 adjacent to each other face each other at an interval; a support member 16 supporting the back-side diaphragm 12 that is a piezoelectric diaphragm at a backmost side of the speaker 10. The plurality of piezoelectric diaphragms 11 and 12 include two piezoelectric diaphragms 11 and 12 having stiffnesses different from each other.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: August 11, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Sawako Kano, Toshiyuki Matsumura
  • Patent number: 6873234
    Abstract: An improved electromagnetic actuator having a coil (10) on which a current is impressed, a magnet (20) that forms a magnetic circuit across a magnetic gap (G) with a magnet yoke (21), and having a diaphragm (11) that vibrates when a high-frequency current is impressed, and a vibration plate (22) that vibrates when a low-frequency current is impressed, with these parts enclosed within a basket (3) and the coil (10) placed within the magnetic gap (G). As one invention, a radial array of magnets, a vibration plate with a double-suspension structure, and a bottom plate of magnetic shielding material are placed in the basket to suppress the leakage of magnetic flux.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: March 29, 2005
    Inventors: Tsuneo Kyouno, Teruo Yoshinari, Minoru Ueda
  • Patent number: 6867690
    Abstract: An improved force-measurement system utilizes active magnetostrictive sensors for generating a signal representative of a force, such as the weight of a person or thing on a seat within a motor vehicle, or the force applied to the horn sensor switch on a vehicle steering wheel. The active magnetostrictive sensor includes an excitation coil and a detection coil.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: March 15, 2005
    Assignee: Key Safety Systems, Inc.
    Inventors: Tony Gioutsos, Robert Janiszewski, Steve Labadie
  • Patent number: 6819227
    Abstract: An acoustic signal generator, and a method for generating an acoustic signal are described. The acoustic signal generator has a membrane that can oscillate, a deflection sensor for detecting any deflection of the membrane, an exciter configuration that is coupled to the membrane, and a power semiconductor switch with a load path that is connected to the exciter configuration. The switch has a drive connection. A drive circuit has a first connection connected to the drive connection of the power semiconductor switch and at which a drive signal is available. The drive circuit further has a second connection, to which the deflection sensor is connected.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: November 16, 2004
    Assignee: Infineon Technologies AG
    Inventor: Christian Arndt
  • Patent number: 6593847
    Abstract: This invention provides a planar acoustic converting apparatus including a support having a flat plate portion, a diaphragm which has an insulating base film having a liquid crystalline polymer film and being opposed to the flat plate portion of the support and at least one spiral coil provided on one major surface or both major surfaces of the insulating base film, at least one permanent magnet supported by the support and opposing a magnetic pole to the diaphragm, and a holding portion provided to the support and holding the diaphragm such that the diaphragm can vibrate and is positioned apart from the at least one permanent magnet.
    Type: Grant
    Filed: May 10, 2001
    Date of Patent: July 15, 2003
    Assignees: The Furukawa Electric Co., Ltd., FPS, Inc.
    Inventors: Toshiiku Miyazaki, Masashi Hori, Takeshi Nishimura, Kenji Iizuka, Masayuki Ishiwa
  • Patent number: 6492899
    Abstract: An electromagnetic converter in which a mobile magnetic pole body supported by a thin spring is driven by an exciting coil. A restricting member limits movement of the spring so the spring is not deformed beyond a stress limit when the spring receives an impact. The electromagnetic converter produces a large vibration using a simple structure which can withstand an impact without increasing the strength of the spring so the weight of a mobile magnetic pole member can be increased. The restricting member is a soft elastic member and arranged either on the spring or at a location opposite the spring.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: December 10, 2002
    Assignee: Tokyo Parts Industrial Co., Ltd.
    Inventor: Tadao Yamaguchi
  • Publication number: 20020180593
    Abstract: A pulse signal, having a buzzer-driving frequency, for driving a buzzer (3) is generated by a free running timer of a timer management section of a microcomputer (1). The timer management section operates independently of software processing of the microcomputer (1). A transistor (2) is turned on and off by the pulse signal having the buzzer-driving frequency. Accordingly, electricity flows through the buzzer (3). The buzzer (3) in turn, generates a sound.
    Type: Application
    Filed: April 24, 2002
    Publication date: December 5, 2002
    Inventors: Hideaki Uemura, Kenji Wakana
  • Publication number: 20020105414
    Abstract: An acoustic signal generator, and a method for generating an acoustic signal are described. The acoustic signal generator has a membrane that can oscillate, a deflection sensor for detecting any deflection of the membrane, an exciter configuration that is coupled to the membrane, and a power semiconductor switch with a load path that is connected to the exciter configuration. The switch has a drive connection. A drive circuit has a first connection connected to the drive connection of the power semiconductor switch and at which a drive signal is available. The drive circuit further has a second connection, to which the deflection sensor is connected.
    Type: Application
    Filed: February 1, 2002
    Publication date: August 8, 2002
    Inventor: Christian Arndt
  • Patent number: 6380847
    Abstract: The present invention relates to a control circuit of a vibrating membrane excited by a solenoid in series with a d.c. supply and a controlled switch. A capacitor is disposed across a series circuit including the solenoid and the switch associated with opening means in the vicinity of a zero crossing of the current in the inductance.
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: April 30, 2002
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventors: André Bremond, Philippe Merceron
  • Patent number: 6188313
    Abstract: A device for regenerating powerful acoustic pressure comprises at least an arrangement for generating sound while utilizing the flextensional technique, i.e. having at least one surface element (2), the opposite ends (4, 5) of which are arranged to be influenced to oscillate away from and towards each other, and the surface element oscillating transversely thereto and generating sound.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: February 13, 2001
    Assignee: Åm System AB
    Inventor: Lars Stahl