Patents Assigned to Actiwave AB
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Patent number: 9525425Abstract: An asynchronous sample rate converter and method for converting an input signal to a resampled output signal is disclosed. An efficient and cost-effective sample rate converter for converting an input signal of arbitrary sample rate to a resampled output signal of a second sample rate is disclosed. A hardware-efficient sample-rate converter for resampling an audio input signal with an arbitrary sample rate to an output audio signal with a known sample rate for use in an audio processor is disclosed.Type: GrantFiled: September 15, 2015Date of Patent: December 20, 2016Assignee: Actiwave ABInventors: Erik Lindahl, Pär Gunnars Risberg
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Patent number: 9503070Abstract: A signal conversion system and method for converting an input signal to a pulse width modulated signal is disclosed. The signal conversion system includes a sample rate converter coupled with an associated pulse width modulation (PWM) module. A hardware and power efficient signal conversion system for resampling an audio input signal with an arbitrary sample rate to a pulse width modulated output audio signal for use in an audio processor and/or reproduction is disclosed. The signal conversion system may be particularly suitable for use in a battery operated consumer electronics device.Type: GrantFiled: October 22, 2015Date of Patent: November 22, 2016Assignee: Actiwave ABInventors: Erik Lindahl, Pär Gunnars Risberg
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Patent number: 9386386Abstract: Systems and methods for enhancing the audio experience on a consumer electronic device are disclosed. More particularly systems and methods for optimizing the audio performance of individual consumer electronic devices as part of a manufacturing process and/or retail experience are disclosed. A system for enhancing the audio performance of a consumer electronic device including a parametrically configurable processing block is disclosed.Type: GrantFiled: January 9, 2013Date of Patent: July 5, 2016Assignee: Actiwave ABInventors: Pär Gunnars Risberg, Richard Kjerstadius, Landy Toth
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Patent number: 9307323Abstract: A system and method for enhancing the real and/or perceived bass band of an audio signal is disclosed. A computationally simple yet effective bass band enhancement system for use in consumer electronics applications is disclosed. An audio processing system including bass enhancement functionality for use in a mobile audio system is disclosed.Type: GrantFiled: November 22, 2012Date of Patent: April 5, 2016Assignee: Actiwave ABInventor: Pär Gunnars Risberg
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Patent number: 9172394Abstract: A signal conversion system and method for converting an input signal to a pulse width modulated signal is disclosed. The signal conversion system includes a sample rate converter coupled with an associated pulse width modulation (PWM) module. A hardware and power efficient signal conversion system for resampling an audio input signal with an arbitrary sample rate to a pulse width modulated output audio signal for use in an audio processor and/or reproduction is disclosed. The signal conversion system may be particularly suitable for use in a battery operated consumer electronics device.Type: GrantFiled: March 6, 2013Date of Patent: October 27, 2015Assignee: Actiwave ABInventors: Erik Lindahl, Pär Gunnars Risberg
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Patent number: 9166563Abstract: An asynchronous sample rate converter and method for converting an input signal to a resampled output signal is disclosed. An efficient and cost-effective sample rate converter for converting an input signal of arbitrary sample rate to a resampled output signal of a second sample rate is disclosed. A hardware-efficient sample-rate converter for resampling an audio input signal with an arbitrary sample rate to an output audio signal with a known sample rate for use in an audio processor is disclosed.Type: GrantFiled: October 25, 2012Date of Patent: October 20, 2015Assignee: Actiwave ABInventors: Erik Lindahl, Pär Gunnars Risberg
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Publication number: 20150201294Abstract: A nonlinear control system is disclosed. More particularly, a nonlinear control system including a controller, an audio system, and a model is disclosed. The controller is configured to accept one or more input signals, and one or more estimated states produced by the model to produce one or more control signals. The audio system includes one or more transducers configured to accept the control signals to produce a rendered audio stream there from.Type: ApplicationFiled: June 7, 2013Publication date: July 16, 2015Applicant: ACTIWAVE ABInventors: Pär Gunnars Risberg, Marcus Arvidsson, Daniel Stahre, Landy Toth
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Publication number: 20150100991Abstract: A system and/or media network for rendering a media stream from one or more media rendering devices is disclosed. The media network may include one or more configurable peers, each configurable peer configurable as a rendering device, an observer, a processing device, a combination thereof, or the like. The system may be particularly suitable for use in remote locations, to generate a controlled and/or shared meeting topology within an uncontrolled media environment, and/or to generate an intense sound field amongst a group of participants from a collection of associated peers.Type: ApplicationFiled: May 8, 2013Publication date: April 9, 2015Applicant: Actiwave ABInventors: Pär Gunnars Risberg, Landy Toth
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Publication number: 20150092973Abstract: A system and method for enhancing the real and/or perceived bass band of an audio signal is disclosed. A computationally simple yet effective bass band enhancement system for use in consumer electronics applications is disclosed. An audio processing system including bass enhancement functionality for use in a mobile audio system is disclosed.Type: ApplicationFiled: November 22, 2012Publication date: April 2, 2015Applicant: ACTIWAVE ABInventor: Pär Gunnars Risberg
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Patent number: 8879754Abstract: A home use sound reproduction system for Hi-fi, with digital signal transfer from a playback unit via a control unit to one or more active loudspeakers, each including or arranged beside an amplifier unit. The control unit is arranged to control sound parameters and send both a digital sound information signal and a power signal for powering the amplifier units, and to superimpose the single ended or differential digital signal together with the power signal on at least one common lead in a cable.Type: GrantFiled: February 5, 2008Date of Patent: November 4, 2014Assignee: Actiwave ABInventor: Risberg par Gunnars
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Publication number: 20140313063Abstract: An asynchronous sample rate converter and method for converting an input signal to a resampled output signal is disclosed. An efficient and cost-effective sample rate converter for converting an input signal of arbitrary sample rate to a resampled output signal of a second sample rate is disclosed. A hardware-efficient sample-rate converter for resampling an audio input signal with an arbitrary sample rate to an output audio signal with a known sample rate for use in an audio processor is disclosed.Type: ApplicationFiled: October 25, 2012Publication date: October 23, 2014Applicant: ACTIWAVE ABInventors: Erik Lindahl, Pär Gunnars Risberg
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Publication number: 20130236031Abstract: A speaker system (1, 1?, 1?) comprises a first speaker driver group (G1), comprising at least one first speaker driver (S1) and a first amplifier (A1), and a second speaker driver group (G2), comprising at least one second speaker driver (S2) and a second amplifier (A2). The speaker system further comprises a digital signal processor (2), adapted to provide a first signal to the first speaker driver group (G1) and a second signal to the second signal group (G2), wherein the first and second signals differ with respect to frequency range and at least one of the speaker driver groups comprises at least 4, 6, 8 or 10 speaker drivers.Type: ApplicationFiled: September 1, 2011Publication date: September 12, 2013Applicant: ACTIWAVE ABInventor: Pär Gunnars Risberg
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Patent number: D664120Type: GrantFiled: March 3, 2011Date of Patent: July 24, 2012Assignee: Actiwave ABInventor: Eva Hanner Larson
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Patent number: D664121Type: GrantFiled: March 3, 2011Date of Patent: July 24, 2012Assignee: Actiwave ABInventor: Eva Hanner Larson