Patents by Inventor Tsung-Li Yeh
Tsung-Li Yeh 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: 11368805Abstract: The invention discloses a test circuit, a test method and an audio codec for testing a microphone module that includes a first microphone and a second microphone. The first microphone outputs the first data, and the second microphone outputs the second data. The test circuit includes a comparison circuit, a counter, and a decision circuit. The comparison circuit is configured to compare the first data with the second data and generate a comparison result. The counter is coupled to the comparison circuit and configured to generate a count value based on the comparison result. The decision circuit is coupled to the counter and configured to indicate, based on the count value and a threshold value, whether the microphone module has an error.Type: GrantFiled: November 6, 2020Date of Patent: June 21, 2022Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Tsung-Li Yeh, Yi-Cheng Huang
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Publication number: 20210144501Abstract: The invention discloses a test circuit, a test method and an audio codec for testing a microphone module that includes a first microphone and a second microphone. The first microphone outputs the first data, and the second microphone outputs the second data. The test circuit includes a comparison circuit, a counter, and a decision circuit. The comparison circuit is configured to compare the first data with the second data and generate a comparison result. The counter is coupled to the comparison circuit and configured to generate a count value based on the comparison result. The decision circuit is coupled to the counter and configured to indicate, based on the count value and a threshold value, whether the microphone module has an error.Type: ApplicationFiled: November 6, 2020Publication date: May 13, 2021Inventors: TSUNG-LI YEH, YI-CHENG HUANG
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Patent number: 9661415Abstract: A digital microphone system, audio control device and control method thereof is related to the method for controlling a digital microphone circuit including receiving a clock signal; detecting that the clock signal is maintained at a predetermined level for a duration; when the duration reaches a given time, switching a transmission type of a data pin; in a data mode, outputting a digital audio signal to a data line via the data pin in an output type; and in a command mode, receiving a command signal from the data line via the data pin in an input type.Type: GrantFiled: April 2, 2013Date of Patent: May 23, 2017Assignee: Realtek Semiconductor Corp.Inventors: Tsung-Li Yeh, Yi-Chang Tu
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Patent number: 9161127Abstract: A signal processing apparatus for generating a noise cancellation signal in accordance with a noise signal includes an inverting circuit and a selecting circuit. The inverting circuit is employed for inverting a first signal to generate an inverted first signal. The selecting circuit is coupled to the inverting circuit, and employed for selecting one of the first signal and the inverted first signal as an output signal.Type: GrantFiled: August 1, 2012Date of Patent: October 13, 2015Assignee: Realtek Semiconductor Corp.Inventors: Chia-Yu Hung, Tsung-Li Yeh, Yi-Chang Tu
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Patent number: 8972252Abstract: A signal processing apparatus includes a speech recognition system and a voice activity detection unit. The voice activity detection unit is coupled to the speech recognition system, and arranged for detecting whether an audio signal is a voice signal and accordingly generating a voice activity detection result to the speech recognition system to control whether the speech recognition system should perform speech recognition upon the audio signal.Type: GrantFiled: September 13, 2012Date of Patent: March 3, 2015Assignee: Realtek Semiconductor Corp.Inventors: Chia-Yu Hung, Tsung-Li Yeh, Yi-Chang Tu
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Publication number: 20140112501Abstract: A digital microphone system, audio control device and control method thereof is related to the method for controlling a digital microphone circuit including receiving a clock signal; detecting that the clock signal is maintained at a predetermined level for a duration; when the duration reaches a given time, switching a transmission type of a data pin; in a data mode, outputting a digital audio signal to a data line via the data pin in an output type; and in a command mode, receiving a command signal from the data line via the data pin in an input type.Type: ApplicationFiled: April 2, 2013Publication date: April 24, 2014Applicant: REALTEK SEMICONDUCTORS CORP.Inventors: Tsung-Li YEH, Yi-Chang TU
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Patent number: 8649511Abstract: A method for dealing with Galois Field computation includes: providing an operating circuit which has at least a multiplicative inverse unit; and using the multiplicative inverse unit to execute at least a plurality of isomorphism maps for deriving a multiplicative inverse at a specific Galois Field corresponding to an input data, wherein the plurality of isomorphism maps include at least a change of basis.Type: GrantFiled: June 22, 2010Date of Patent: February 11, 2014Assignee: Realtek Semiconductor Corp.Inventors: Chia-Yu Hung, Tsung-Li Yeh
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Publication number: 20140012573Abstract: A signal processing apparatus includes a speech recognition system and a voice activity detection unit. The voice activity detection unit is coupled to the speech recognition system, and arranged for detecting whether an audio signal is a voice signal and accordingly generating a voice activity detection result to the speech recognition system to control whether the speech recognition system should perform speech recognition upon the audio signal.Type: ApplicationFiled: September 13, 2012Publication date: January 9, 2014Inventors: Chia-Yu Hung, Tsung-Li Yeh, Yi-Chang Tu
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Publication number: 20130034236Abstract: A signal processing apparatus for generating a noise cancellation signal in accordance with a noise signal includes an inverting circuit and a selecting circuit. The inverting circuit is employed for inverting a first signal to generate an inverted first signal. The selecting circuit is coupled to the inverting circuit, and employed for selecting one of the first signal and the inverted first signal as an output signal.Type: ApplicationFiled: August 1, 2012Publication date: February 7, 2013Inventors: Chia-Yu Hung, Tsung-Li Yeh, Yi-Chang Tu
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Patent number: 8306099Abstract: A signal receiving device is adapted for receiving a multi-bit signal-under-test that supports one of first and second base frequency types, and outputting a type indicator for indicating which one of the first and second base frequency types is supported by the signal-under-test. The signal receiving device includes a counter and a frequency determining circuit. The counter includes an accumulating unit for counting cycles of an operating clock so as to obtain a bit count. The frequency determining circuit is coupled to the counter for comparing the bit count to one of first and second preset values in accordance with a previous value of the type indicator so as to obtain a comparison result, and determining whether to update a value of the type indicator based on the comparison result.Type: GrantFiled: September 23, 2009Date of Patent: November 6, 2012Assignee: Realtek Semiconductor Corp.Inventors: Cho-Hsin Li, Tsung-Li Yeh
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Patent number: 8059831Abstract: A noise processing device and its method are provided for a video/audio system having a high definition multimedia interface (HDMI). The noise processing device includes a detecting unit, a signal generating unit, and a decision unit. The noise processing method includes using the detecting unit to monitor a variation related to an audio signal and generate a detecting signal accordingly; using the signal generating unit to produce an adjustment signal according to the detecting signal; and using the decision unit to produce an output audio signal according to the audio signal and the adjustment signal. Another embodiment of the noise processing device includes a compensation tracking unit having a control unit. The compensation tracking unit produces an output audio signal according to a difference between the output audio signal itself and the audio signal and a gain of the control unit.Type: GrantFiled: May 19, 2006Date of Patent: November 15, 2011Assignee: RealTek Semiconductor Corp.Inventors: Shiu-Rong Tong, Tsung-Li Yeh, Yu-Pin Chou, Tzuo-Bo Lin
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Publication number: 20100322412Abstract: A method for dealing with Galois Field computation includes: providing an operating circuit which has at least a multiplicative inverse unit; and using the multiplicative inverse unit to execute at least a plurality of isomorphism maps for deriving a multiplicative inverse at a specific Galois Field corresponding to an input data, wherein the plurality of isomorphism maps include at least a change of basis.Type: ApplicationFiled: June 22, 2010Publication date: December 23, 2010Inventors: Chia-Yu Hung, Tsung-Li Yeh
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Publication number: 20100080273Abstract: A signal receiving device is adapted for receiving a multi-bit signal-under-test that supports one of first and second base frequency types, and outputting a type indicator for indicating which one of the first and second base frequency types is supported by the signal-under-test. The signal receiving device includes a counter and a frequency determining circuit. The counter includes an accumulating unit for counting cycles of an operating clock so as to obtain a bit count. The frequency determining circuit is coupled to the counter for comparing the bit count to one of first and second preset values in accordance with a previous value of the type indicator so as to obtain a comparison result, and determining whether to update a value of the type indicator based on the comparison result.Type: ApplicationFiled: September 23, 2009Publication date: April 1, 2010Applicant: REALTEK SEMICONDUCTOR CORP.Inventors: Cho-Hsin Li, Tsung-Li Yeh
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Publication number: 20090254743Abstract: The present invention provides an audio data transmission method for transmitting encrypted audio data, an audio processing system and computer system thereof. The audio data transmission method includes providing an audio data, performing an encryption process upon the audio data according to an encryption standard and a format of the audio data, transmitting the encrypted audio data to an audio device according to a link standard, and utilizing the audio device to perform a decryption process upon the encrypted audio data.Type: ApplicationFiled: May 26, 2009Publication date: October 8, 2009Inventors: Shu-Yeh Chiu, Tsung-Li Yeh, Chia-Yu Hung, Jung-Wen Kuo
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Publication number: 20080152138Abstract: The present invention provides an audio data transmission method for transmitting encrypted audio data, an audio processing system and computer system thereof. The audio data transmission method includes providing an audio data, performing an encryption process upon the audio data according to an encryption standard, transmitting the encrypted audio data to an audio device according to a link standard, and utilizing the audio device to perform a decryption process upon the encrypted audio data.Type: ApplicationFiled: December 20, 2007Publication date: June 26, 2008Inventors: Shu-Yeh Chiu, Loung-Wen Chiang, Tsung-Li Yeh, Ti-En Lu
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Publication number: 20060263064Abstract: A noise processing device and its method are provided for a video/audio system having a high definition multimedia interface (HDMI). The noise processing device includes a detecting unit, a signal generating unit, and a decision unit. The noise processing method includes using the detecting unit to monitor a variation related to an audio signal and generate a detecting signal accordingly; using the signal generating unit to produce an adjustment signal according to the detecting signal; and using the decision unit to produce an output audio signal according to the audio signal and the adjustment signal. Another embodiment of the noise processing device includes a compensation tracking unit having a control unit. The compensation tracking unit produces an output audio signal according to a difference between the output audio signal itself and the audio signal and a gain of the control unit.Type: ApplicationFiled: May 19, 2006Publication date: November 23, 2006Inventors: Shiu-Rong Tong, Tsung-Li Yeh, Yu-Pin Chou, Tzuo-Bo Lin