Patents by Inventor Klaus KAETEL
Klaus KAETEL has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20240147184Abstract: Apparatus for supplying sound with first and second loudspeakers including: a control signal generator for generating a first control signal for the first loudspeaker and a second control signal for the second loudspeaker. The control signal generator includes: a mix signal generator stage generating a first mix signal for the first control signal and a second mix signal for the second control signal from a first channel signal or a second channel signal such that the first mix signal and the second mix signal have a phase difference; a mixer stage for mixing the first channel signal with the first mix signal to obtain the first control signal, and for mixing the second channel signal with the second mix signal to obtain the second control signal; and an interface for transmitting the first control signal to the first loudspeaker and for transmitting the second control signal to the second loudspeaker.Type: ApplicationFiled: January 3, 2024Publication date: May 2, 2024Inventor: Klaus KAETEL
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Publication number: 20240098448Abstract: Apparatus for generating a control signal for a sound generator including a push-pull signal generator for generating a push-pull signal from a first channel signal and a second channel signal of a of a multi-channel audio signal; a controllable amplifier for amplifying or attenuating the push-pull signal with an adjustable amplification or attenuation according to an adjustment value, wherein the apparatus is configured to identify the control signal from an output signal of the controllable amplifier; and a controller for determining the adjustment value, wherein the controller is configured to determine a first adjustment value in case of a first similarity between the first channel signal and the second channel signal, and to determine a second adjustment value in case of a second similarity between the first channel signal and the second channel signal, wherein the first similarity represents a lower similarity than the second similarity.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventor: Klaus KAETEL
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Publication number: 20240040303Abstract: An apparatus for generating a first control signal for a first transducer and a second control signal for a second transducer, including: an input interface providing a first audio signal for a first audio channel and a second audio signal for a second audio channel; a signal combiner for determining from the first audio signal and the second audio signal a combination signal including an approximate difference of the first audio signal and the second audio signal; a signal manipulator for manipulating the combination signal to obtain the second control signal; and an output interface for outputting or storing the first control signal based on the first audio signal, or the second control signal, wherein the signal manipulator is configured to delay the combination signal or to amplify or attenuate the combination signal in a frequency-selective manner to counteract a non-linear transducer characteristic over the frequency of the second transducer.Type: ApplicationFiled: October 5, 2023Publication date: February 1, 2024Inventor: Klaus KAETEL
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Publication number: 20240031735Abstract: A loudspeaker system includes: a first sound generator with a first emission direction, and a second sound generator with a second emission direction, wherein the first sound generator and the second sound generator are arranged with respect to each other such that the first emission direction and the second emission direction intersect in a sound chamber; a third sound generator with a third emission direction, and a fourth sound generator with a fourth emission direction, wherein the third sound generator and the fourth sound generator are arranged such that the third emission direction and the fourth emission direction intersect in the sound chamber; and a housing that accommodates the first sound generator and the second sound generator, the third sound generator and the fourth sound generator, and the sound chamber, wherein the housing has a gap configured to enable gas communication between the sound chamber and a surrounding area.Type: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Inventor: Klaus KAETEL
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Publication number: 20240031738Abstract: A loudspeaker includes a first sound generator with a first emission direction, and a second sound generator with a second emission direction, wherein the first sound generator and the second sound generator are arranged with respect to each other such that the first emission direction and the second emission direction intersect in a sound chamber and comprise an intersection angle that is larger than 60° and smaller than 120°; and a housing that accommodates the first sound generator and the second sound generator and the sound chamber, wherein the housing comprises a gap configured to enable gas communication between the sound chamber and the surrounding area of the loudspeaker.Type: ApplicationFiled: October 4, 2023Publication date: January 25, 2024Inventor: Klaus KAETEL
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Publication number: 20230362532Abstract: Sound generator wearable on the head, comprising: a first sound generator element on a first side; and a second sound generator element on a second side, wherein at least a first sound transducer and a second sound transducer are arranged in the first sound generator element such that sound emission directions of the first sound transducer and the second sound transducer are parallel or deviate by less than 30° from a parallel emission direction, and wherein a third sound transducer and a fourth sound transducer are arranged in the second sound generator element such that sound emission directions of the third sound transducer and the fourth sound transducer are parallel to one another or deviate by less than 30° from a parallel emission direction.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Inventor: Klaus KAETEL
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Publication number: 20230362545Abstract: Microphone having: a first partial microphone with a first diaphragm pair having a first diaphragm and a second diaphragm that are arranged opposite each other; and a second partial microphone with a second diaphragm pair having a third diaphragm and a fourth diaphragm that are arranged opposite each other, wherein the first diaphragm pair is arranged such that the first diaphragm and the second diaphragm are deflectable along a first spatial axis, wherein the second diaphragm pair is arranged such that the third diaphragm and the fourth diaphragm are deflectable along a second spatial axis and wherein the second spatial axis differs from the first spatial axis.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Inventor: Klaus KAETEL
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Publication number: 20230362536Abstract: A loudspeaker includes two diaphragms arranged opposite each other, a drive unit for deflecting the two diaphragms in response to a control signal, the drive unit being coupled to the two diaphragms such that a first one of the two diaphragms is deflected in a first direction, and a second one of the two diaphragms is deflected in a second direction equal to the first direction.Type: ApplicationFiled: July 18, 2023Publication date: November 9, 2023Inventor: Klaus KAETEL
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Publication number: 20230362546Abstract: A loudspeaker system includes a transducer configured to transduce an electrical signal into sound waves, and having a clamped diaphragm configured to be deflected by the electrical signal, wherein the diaphragm has a deflection region which is deflectable in relation to a resting position of the diaphragm, and a clamping region which is less deflectable, or non-deflectable, in relation to the deflection region, a housing within which the transducer is arranged, the housing having perforations to allow the sound wave to exit to an external environment, wherein the perforations are arranged on the housing predominantly to be closer to the clamping region than to the deflection region.Type: ApplicationFiled: July 14, 2023Publication date: November 9, 2023Inventor: Klaus KAETEL
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Patent number: 11259101Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower tType: GrantFiled: August 12, 2020Date of Patent: February 22, 2022Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Publication number: 20200374610Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower tType: ApplicationFiled: August 12, 2020Publication date: November 26, 2020Inventor: Klaus KAETEL
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Patent number: 10848842Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower tType: GrantFiled: October 28, 2019Date of Patent: November 24, 2020Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Publication number: 20200084526Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower tType: ApplicationFiled: October 28, 2019Publication date: March 12, 2020Inventor: Klaus KAETEL
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Patent number: 10524055Abstract: An earphone has a membrane mounted on a membrane carrier and arranged between a top space and a bottom space; a membrane actuator implemented to deflect the membrane in dependence on a control signal; a housing where the membrane carrier, the membrane and the membrane actuator are arranged, wherein the housing has a sound exit, wherein the membrane carrier has openings, and wherein the membrane has holes, and wherein the openings and the holes connect the top space and the bottom space to each another, such that gas can move through the openings and holes between the top space and the bottom space.Type: GrantFiled: April 22, 2016Date of Patent: December 31, 2019Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Patent number: 10469924Abstract: The method of capturing an audio scene includes acquiring sounds having first and second directivities to obtain first and second acquisition signals, respectively, the first directivity being higher than the second directivity, the steps of acquiring being performed simultaneously, and both acquisition signals together representing the audio scene; separately storing the first and second acquisition signals or mixing individual channels in the acquisition signals to obtain first and second mixed signal, respectively, and separately storing the first and second mixed signals, or transmitting the first and second mixed signals or the first and second acquisition signals to a loudspeaker setup and rendering the first mixed signal or the first acquisition signal using a loudspeaker arrangement having a first directivity and simultaneously rendering the second mixed signal or the second acquisition signal using a loudspeaker arrangement having a second directivity, the second loudspeaker directivity being lower tType: GrantFiled: September 27, 2013Date of Patent: November 5, 2019Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Patent number: 10231054Abstract: Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.Type: GrantFiled: January 26, 2018Date of Patent: March 12, 2019Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Publication number: 20180167733Abstract: Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.Type: ApplicationFiled: January 26, 2018Publication date: June 14, 2018Inventor: Klaus KAETEL
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Patent number: 9906863Abstract: Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.Type: GrantFiled: April 25, 2016Date of Patent: February 27, 2018Assignee: Kaetel Systems GmbHInventor: Klaus Kaetel
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Patent number: 9668038Abstract: A loudspeaker includes a longitudinal enclosure having at least one subwoofer speaker for emitting lower sound frequencies; a carrier portion on top of the longitudinal enclosure; and a speaker arrangement having individual speakers for emitting higher sound frequencies arranged in a different direction with respect to the longitudinal enclosure, wherein the speaker arrangement is fixed to the carrier portion and is not surrounded by the longitudinal enclosure.Type: GrantFiled: September 27, 2013Date of Patent: May 30, 2017Assignee: Kaetel Systems GMBHInventor: Klaus Kaetel
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Publication number: 20160241962Abstract: Headphones include a left loudspeaker element; a right loudspeaker element; and a holder for holding the left loudspeaker element and the right loudspeaker element, such that the loudspeaker elements can be attached to the ears, wherein the left loudspeaker element or the right loudspeaker element includes: a first sound converter; a second sound converter, wherein the first sound converter is implemented such that the first sound converter provides directed emission in the direction of an ear in the operating position of the headphones, and the second sound converter is implemented such that the second sound converter provides no or less directed emission than the first sound converter in the direction of the ear in the operating position of the headphones.Type: ApplicationFiled: April 25, 2016Publication date: August 18, 2016Inventor: Klaus KAETEL