Patents Assigned to BURMESTER AUDIOSYSTEME GmbH
  • Patent number: 11588446
    Abstract: The invention relates to a signal amplifier circuit for amplifying a signal, in particular an audio amplifier circuit, includes at least one first amplifier transistor (Q1) and at least one second amplifier transistor (Q2), wherein the first amplifier transistor (Q1) and the second amplifier transistor (Q2) are connected to one another in a push-pull circuit and are fed by an amplifier voltage source (V+, V?); and one or more bias diodes (D1, D2) thermally coupled in each case to an associated amplifier transistor (Q1, Q2), wherein the bias diodes (D1, D2) are arranged in a parallel connection with respect to the amplifying transistors (Q1, Q2) to reduce or avoid a crossover distortion, wherein the bias diodes (D1, D2) are fed at least partly by a voltage source (UA) which is independent of the amplifier voltage source (V+, V?).
    Type: Grant
    Filed: June 1, 2022
    Date of Patent: February 21, 2023
    Assignee: BURMESTER AUDIOSYSTEME GmbH
    Inventor: Ernst-Heinrich Westphal
  • Publication number: 20220294397
    Abstract: The invention relates to a signal amplifier circuit for amplifying a signal, in particular an audio amplifier circuit, includes at least one first amplifier transistor (Q1) and at least one second amplifier transistor (Q2), wherein the first amplifier transistor (Q1) and the second amplifier transistor (Q2) are connected to one another in a push-pull circuit and are fed by an amplifier voltage source (V+, V?); and one or more bias diodes (D1, D2) thermally coupled in each case to an associated amplifier transistor (Q1, Q2), wherein the bias diodes (D1, D2) are arranged in a parallel connection with respect to the amplifying transistors (Q1, Q2) to reduce or avoid a crossover distortion, wherein the bias diodes (D1, D2) are fed at least partly by a voltage source (UA) which is independent of the amplifier voltage source (V+, V?).
    Type: Application
    Filed: June 1, 2022
    Publication date: September 15, 2022
    Applicant: BURMESTER AUDIOSYSTEME GmbH
    Inventor: Ernst-Heinrich Westphal
  • Patent number: 11387787
    Abstract: The invention relates to a signal amplifier circuit for amplifying a signal, in particular an audio amplifier circuit, includes at least one first amplifier transistor (Q1) and at least one second amplifier transistor (Q2), wherein the first amplifier transistor (Q1) and the second amplifier transistor (Q2) are connected to one another in a push-pull circuit and are fed by an amplifier voltage source (V+, V?); and one or more bias diodes (D1, D2) thermally coupled in each case to an associated amplifier transistor (Q1, Q2), wherein the bias diodes (D1, D2) are arranged in a parallel connection with respect to the amplifying transistors (Q1, Q2) to reduce or avoid a crossover distortion, wherein the bias diodes (D1, D2) are fed at least partly by a voltage source (UA) which is independent of the amplifier voltage source (V+, V?).
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: July 12, 2022
    Assignee: BURMESTER AUDIOSYSTEME GmbH
    Inventor: Ernst-Heinrich Westphal
  • Patent number: 10735850
    Abstract: The present invention refers to a loudspeaker. Soundwaves generated by a loudspeaker according to the prior art are emitted into a room or into the surrounding space in a predetermined geometric structure. It is a task of the present invention to provide a loudspeaker, which has an improved spatial acoustic performance. According to an embodiment of the invention, the loudspeaker comprises a housing, at least one driver arrangement and a mounting device including a movable mechanism for mounting the driver arrangement to the housing. The driver arrangement comprises at least one electroacoustic driver. With the help of the mounting device the driver arrangement is mounted to the housing in different predetermined positions, wherein the mounting device is adapted such, that the driver arrangement can be arranged in at least a first position and at least a second position with respect to the housing.
    Type: Grant
    Filed: April 29, 2016
    Date of Patent: August 4, 2020
    Assignee: BURMESTER AUDIOSYSTEME GMBH
    Inventors: Stefan Größler, Robert Horbach, Martin Lorenz, Pascal-Philippe Bings
  • Publication number: 20090167953
    Abstract: A method is provided for correction of signal distortion, wherein the method comprises the steps of reading in a digital input signal value, determining a digital output signal value on the basis of the digital input signal value that has been read in, and outputting the digital output signal value to a signal processing path, wherein the digital output signal value is determined such that a predetermined systematic error of signal processing by the signal processing path with regard to the digital input signal value is compensated for.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 2, 2009
    Applicant: BURMESTER AUDIOSYSTEME GmbH
    Inventors: Martin Van Der Grinten, Nico Bergmann, Stefan Groessler