Patents by Inventor Kuen-Ying Ou
Kuen-Ying Ou 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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Patent number: 10083707Abstract: The present disclosure illustrates a voice apparatus and a dual-microphone voice system with noise cancellation. A voice detector and a noise detector simultaneously receive a first voice source and a second voice source to acquire a first main signal with a voice band and a second main signal with a burst noise band respectively. A voice filter filters a voice signal of the first main signal to remain a burst noise signal with a little voice signal (i.e., a remained noise). A noise filter filters a burst noise signal of the second main signal to remain a voice signal with a little burst noise signal (i.e., a remained voice). A post-filter generates a noise reduction gain according to the remained voice and the remained noise and adjusts the remained voice according to the noise reduction gain to generate the voice signal.Type: GrantFiled: October 20, 2017Date of Patent: September 25, 2018Assignee: C-MEDIA ELECTRONICS INC.Inventor: Kuen-Ying Ou
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Patent number: 9824678Abstract: The disclosure is related to a method and a system for self-tuning active noise canceller (STANC) and a headset apparatus. The headset apparatus is placed on a measurement device to emulate user scenario where the user receives audio signal from the headset. The STANC system receives environmental noise signal from a microphone inside the headset. The output of the STANC system acts as reverse noise signal to suppress the environmental noise signal via a speaker unit. The corresponding mixture signal is defined as an error signal. In a calibration mode, the error signal received from the measurement device can be used to update the STANC parameters. The process will be done when the error signal is lower than a predefined threshold. The final parameters can be saved as default settings for the headset apparatus in a user mode.Type: GrantFiled: November 29, 2016Date of Patent: November 21, 2017Assignee: C-MEDIA ELECTRONICS INC.Inventor: Kuen-Ying Ou
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Patent number: 9197178Abstract: A headphone with active noise cancelling and auto-calibration method thereof is disclosed. The headphone includes a first gain-amplifier, an active noise cancelling module, a speaker, a measurement circuit, a calibration control circuit and USB driving circuit. Auto-calibration of the headphone is by use of a USB interface in the instant disclosure, so as to significantly reduce calibration time and then improve production efficiency.Type: GrantFiled: April 8, 2014Date of Patent: November 24, 2015Assignee: C-MEDIA ELECTRONICS INC.Inventor: Kuen-Ying Ou
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Publication number: 20150092951Abstract: A headphone with active noise cancelling and auto-calibration method thereof is disclosed. The headphone includes a first gain-amplifier, an active noise cancelling module, a speaker, a measurement circuit, a calibration control circuit and USB driving circuit. Auto-calibration of the headphone is by means of a USB interface in the instant disclosure, so as to significantly reduce calibration time and then improve production efficiency.Type: ApplicationFiled: April 8, 2014Publication date: April 2, 2015Applicant: C-MEDIA ELECTRONICS INC.Inventor: Kuen-Ying Ou
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Patent number: 8031883Abstract: A crosstalk cancellation system for preserving quality of sound and the parameter determining method thereof. The system can cancel a two-channel audio signal without compensating a frequency response of an ipsilateral HRTF. The method includes providing an audio signal input device for inputting the two-channel audio signal, modeling a relation between parameters of the crosstalk cancellation system and a head related transfer function (HRTF) to thereby obtain an output transfer impulse response, setting contralateral parts of the output transfer impulse response approximate to zero, setting ipsilateral parts of the output transfer impulse response equal to a delay of ipsilateral head related impulse responses (HRIRs) corresponding to the HRTF, and performing an inverse operation to compute the parameters of the crosstalk cancellation system.Type: GrantFiled: March 7, 2007Date of Patent: October 4, 2011Assignee: Sunplus Technolgoy Co., Ltd.Inventors: Ming-Sian Bai, Yo-Chung Liu, Kuen-Ying Ou, Geng-Yu Shih, Chih-Chung Lee
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Patent number: 7921016Abstract: A method for providing a 3D audio work includes providing a one-ear HRTF filter and a related function synthesizer storing a related function therein, and inputting sound signals into the one-ear HRTF filter. The sound signals are converted into one-ear output sound signals which are received by one ear and synthesized to output sound signals for the other ear. A method for providing the related function includes inputting sound signals into HRTF filters of opposite ears and obtaining output sound signals which respectively act as raw signals and target signals. The raw signals are synthesized by a synthesizer to output sound signals which compare with the target signals. A related function registered in the synthesizer is accordingly regulated so as to obtain the related function which satisfies a minimum difference between the output sound signals from the synthesizer and the target signals.Type: GrantFiled: November 8, 2007Date of Patent: April 5, 2011Assignee: Foxconn Technology Co., Ltd.Inventor: Kuen-Ying Ou
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Patent number: 7889872Abstract: A device and a method for integrating 3D sound effect processing and active noise control are proposed. A digital signal processor incorporates an artificial reverberator and a 3D spatial audio processor into an audio module. The audio signal is presented via an earphone. Next, a microphone embedded in the vicinity of the loudspeaker inside the headset is used to sense an external noise while playing, and feed it back to an active noise controller, which generates an anti-noise to eliminate the external noise. Therefore, the signal to noise ratio can be increased and the 3D sound field effect can be significantly enhanced. In addition, a head-related transfer function is more efficiently implemented on the basis of an interaural transfer function in the spatial audio processing to reduce the filter order lower and hence the computation loading.Type: GrantFiled: February 28, 2006Date of Patent: February 15, 2011Assignee: National Chiao Tung UniversityInventors: Mingsian R. Bai, Kuen-Ying Ou, Jain-Liang Lin
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Publication number: 20100111346Abstract: An electronic device includes a casing defining a sound receiving chamber therein, and a microphone accommodated in the sound receiving chamber. The sound receiving chamber has an arcuate surface being part of an outer elliptical surface. The microphone is located at a focus of the elliptical surface, with a sound receiving surface of the microphone facing the sound receiving chamber. The other focus of the elliptical surface is disposed at a position out of the sound receiving chamber.Type: ApplicationFiled: March 9, 2009Publication date: May 6, 2010Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventors: PO-YAO HSIAO, SHENG-KAI HSU, KUEN-YING OU
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Publication number: 20090086988Abstract: A headphone (49) of a noise-reduction headset (40) includes an ear cup (41), an external microphone (42), an internal loudspeaker (43), and a controller (33) between the external microphone and the internal loudspeaker. The external microphone receives external noise sound signals. The control unit converts the external noise sound signals into anti-phased noise sound signals which are broadcasted by the internal loudspeaker (43). The anti-phased noise sound signals interfere with and reduce the external noise sound signal entering the ear cup. The controller has a preferred related function stored therein for converting the external noise sound signals into the anti-phased noise sound signals. The preferred related function is obtained by regulating a related function in respect to a comparison between a transfer function between an external microphone (22) and an internal microphone (24) and a transfer function between an internal loudspeaker (23) and the internal microphone.Type: ApplicationFiled: December 27, 2007Publication date: April 2, 2009Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventors: KUEN-YING OU, TSUNG-LUNG YANG, SHENG-KAI HSU
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Publication number: 20090037177Abstract: A method for providing a 3D audio work includes providing a one-ear HRTF filter and a related function synthesizer storing a related function therein, and inputting sound signals into the one-ear HRTF filter. The sound signals are converted into one-ear output sound signals which are received by one ear and synthesized to output sound signals for the other ear. A method for providing the related function includes inputting sound signals into HRTF filters of opposite ears and obtaining output sound signals which respectively act as raw signals and target signals. The raw signals are synthesized by a synthesizer to output sound signals which compare with the target signals. A related function registered in the synthesizer is accordingly regulated so as to obtain the related function which satisfies a minimum difference between the output sound signals from the synthesizer and the target signals.Type: ApplicationFiled: November 8, 2007Publication date: February 5, 2009Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventor: KUEN-YING OU
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Publication number: 20080277197Abstract: A diaphragm structure (10) includes an oscillating diaphragm (11) and a strengthening member (13) superposed on and surrounding a periphery of the oscillating diaphragm. The strengthening member is hot-pressed on the periphery of the oscillating diaphragm. The strengthening member has a higher melting temperature than that of the oscillating diaphragm, and the strengthening member and the oscillating diaphragm are cooled after they are heat-pressed in a mold to thereby obtain residual stress in the oscillating diaphragm.Type: ApplicationFiled: July 2, 2007Publication date: November 13, 2008Applicant: FOXCONN TECHNOLOGY CO., LTD.Inventors: TSUNG-LUNG YANG, HSIEN-SHENG PEI, SHENG-KAI HSU, KUEN-YING OU
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Publication number: 20070223750Abstract: A crosstalk cancellation system for preserving quality of sound and the parameter determining method thereof. The system can cancel a two-channel audio signal without compensating a frequency response of an ipsilateral HRTF. The method includes providing an audio signal input device for inputting the two-channel audio signal, modeling a relation between parameters of the crosstalk cancellation system and a head related transfer function (HRTF) to thereby obtain an output transfer impulse response, setting contralateral parts of the output transfer impulse response approximate to zero, setting ipsilateral parts of the output transfer impulse response equal to a delay of ipsilateral head related impulse responses (HRIRs) corresponding to the HRTF, and performing an inverse operation to compute the parameters of the crosstalk cancellation system.Type: ApplicationFiled: March 7, 2007Publication date: September 27, 2007Applicant: Sunplus Technology Co., Ltd.Inventors: Ming-Sian Bai, Yo-Chung Liu, Kuen-Ying Ou, Geng-Yu Shih, Chih-Chung Lee
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Publication number: 20070121956Abstract: A device and a method for integrating 3D sound effect processing and active noise control are proposed. A digital signal processor incorporates an artificial reverberator and a 3D spatial audio processor into an audio module. The audio signal is presented via an earphone. Next, a microphone embedded in the vicinity of the loudspeaker inside the headset is used to sense an external noise while playing, and feed it back to an active noise controller, which generates an anti-noise to eliminate the external noise. Therefore, the signal to noise ratio can be increased and the 3D sound field effect can be significantly enhanced. In addition, a head-related transfer function is more efficiently implemented on the basis of an interaural transfer function in the spatial audio processing to reduce the filter order lower and hence the computation loading.Type: ApplicationFiled: February 28, 2006Publication date: May 31, 2007Inventors: Mingsian Bai, Kuen-Ying Ou, Jain-Liang Lin