Patents by Inventor Hsin-Ping Cheng
Hsin-Ping Cheng 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: 20240101602Abstract: Provided is a peptide and method in preventing or treating infections caused by a wide spectrum of pathogens, including bacteria and fungus in hosts such as plants and animals. Methods of preventing or treating plant diseases and infection in animals are also provided.Type: ApplicationFiled: November 24, 2021Publication date: March 28, 2024Inventors: Rita P.Y. Chen, Chiu-Ping CHENG, Chien-Chih YANG, Kung-Ta LEE, Ying-Lien CHEN, Li-Hang Hsu, Hsin-Liang CHEN, Sung CHEN
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Patent number: 9779725Abstract: A voice wakeup detecting device for an electronic product includes a front end detecting circuit, a speech recognition processor and a main processor. The front end detecting circuit judges whether a voice signal contains a sub-keyword according to sub-keyword model parameters. If the front end detecting circuit confirms that the voice signal contains the sub-keyword, then it generates a first interrupt signal. In response to the first interrupt signal, the speech recognition processor is enabled to judge whether the voice signal contains a keyword according to keyword model parameters. If the speech recognition processor confirms that the voice signal contains the keyword, then it generates a second interrupt signal. In response to the second interrupt signal, the main processor is enabled. Consequently, the electronic produce is waked up from a sleep state to a normal working state.Type: GrantFiled: October 1, 2015Date of Patent: October 3, 2017Assignee: MEDIATEK INC.Inventors: Liang-Che Sun, Chia-Hsien Lu, Yiou-Wen Cheng, Hsin-Ping Cheng
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Publication number: 20160300583Abstract: An audio sample rate control method includes at least the following steps: when an audio source is required to undergo audio playback via an audio front-end (AFE), checking a sample rate control criterion; and performing sample rate control upon the AFE according to a checking result of the sample rate control criterion.Type: ApplicationFiled: October 29, 2015Publication date: October 13, 2016Applicant: MEDIATEK INC.Inventors: Pei-Lin Hsu, Chi-Peng Chang, Hsin-Ping Cheng
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Publication number: 20160171975Abstract: A voice wakeup detecting device for an electronic product includes a front end detecting circuit, a speech recognition processor and a main processor. The front end detecting circuit judges whether a voice signal contains a sub-keyword according to sub-keyword model parameters. If the front end detecting circuit confirms that the voice signal contains the sub-keyword, then it generates a first interrupt signal. In response to the first interrupt signal, the speech recognition processor is enabled to judge whether the voice signal contains a keyword according to keyword model parameters. If the speech recognition processor confirms that the voice signal contains the keyword, then it generates a second interrupt signal. In response to the second interrupt signal, the main processor is enabled. Consequently, the electronic produce is waked up from a sleep state to a normal working state.Type: ApplicationFiled: October 1, 2015Publication date: June 16, 2016Inventors: Liang-Che Sun, Chia-Hsien Lu, Yiou-Wen Cheng, Hsin-Ping Cheng
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Patent number: 8135219Abstract: A method of detecting and compensating fail pixels in a holographic storage system. The method includes steps of: providing a plurality of image frames to show on a data plane for all pixels on the data plane being capable of outputting a light state or a dark state; sequentially recording the image frames into a storage medium; detecting the image frames by using a detecting apparatus for all pixels on the detecting apparatus being capable of outputting sensing signals corresponding to the light state and the dark state; defining a sensing difference value, which is a difference of the sensing signal outputting the light state and the dark state generated by one pixel; comparing the sensing difference value with a threshold value; and defining the corresponding pixel is a fail pixel if the sensing difference value is smaller than the threshold value.Type: GrantFiled: March 7, 2007Date of Patent: March 13, 2012Assignee: Lite-On It Corp.Inventors: Chia-Yen Chang, Hsin-Ping Cheng
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Patent number: 7567191Abstract: A method of designing a look-up table of a finite-state encoder, applied to a finite-state encoder, comprises steps of: determining a bit length of a legal output codeword derived from the finite-state encoder and a restrict condition; collecting a plurality of legal output codeword satisfied the restrict condition; determining a bit length of an input codeword derived to the finite-state encoder according to the amount of the plurality of the legal output codeword; determining the amount of states in the finite-state encoder according to the bit length of the input codeword and the bit length of the legal output codeword; dividing the plurality of legal output codeword to a plurality of subset according to the amount of the states in the finite-state encoder and a specific mathematic equation; determining the amount of the legal output codewords in the plurality of subset; and, completing the look-up table through determining a relationship among a present state, a previous state, and a corresponding subset,Type: GrantFiled: June 4, 2008Date of Patent: July 28, 2009Assignee: Lite-On It CorpInventors: Chia-Yen Chang, Hsin-Ping Cheng
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Publication number: 20090027244Abstract: A method of designing a look-up table of a finite-state encoder, applied to a finite-state encoder, comprises steps of: determining a bit length of a legal output codeword derived from the finite-state encoder and a restrict condition; collecting a plurality of legal output codeword satisfied the restrict condition; determining a bit length of an input codeword derived to the finite-state encoder according to the amount of the plurality of the legal output codeword; determining the amount of states in the finite-state encoder according to the bit length of the input codeword and the bit length of the legal output codeword; dividing the plurality of legal output codeword to a plurality of subset according to the amount of the states in the finite-state encoder and a specific mathematic equation; determining the amount of the legal output codewords in the plurality of subset; and, completing the look-up table through determining a relationship among a present state, a previous state, and a corresponding subset,Type: ApplicationFiled: June 4, 2008Publication date: January 29, 2009Applicant: Lite-On it CorporationInventors: Chia-Yen Chang, Hsin-Ping Cheng
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Patent number: 7460446Abstract: A method for generating a feedback signal in optical disc drives is disclosed. Firstly RF signal is generated by a pickup head and coupled to a converter to generate a digital signal. Then a detector generates a plurality of pseudo-jitter according to the digital signal. Thereafter a calculator receives the said pseudo-jitter and calculates for outputting a feedback signal to the pickup head.Type: GrantFiled: August 4, 2005Date of Patent: December 2, 2008Assignee: Lite-On IT CorporationInventor: Hsin-Ping Cheng
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Publication number: 20080062488Abstract: A method of detecting and compensating fail pixels in a holographic storage system. The method includes steps of: providing a plurality of image frames to show on a data plane for all pixels on the data plane being capable of outputting a light state or a dark state; sequentially recording the image frames into a storage medium; detecting the image frames by using a detecting apparatus for all pixels on the detecting apparatus being capable of outputting sensing signals corresponding to the light state and the dark state; defining a sensing difference value, which is a difference of the sensing signal outputting the light state and the dark state generated by one pixel; comparing the sensing difference value with a threshold value; and defining the corresponding pixel is a fail pixel if the sensing difference value is smaller than the threshold value.Type: ApplicationFiled: March 7, 2007Publication date: March 13, 2008Applicant: LITE-ON IT CORP.Inventors: Chia-Yen Chang, Hsin-Ping Cheng
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Publication number: 20080062490Abstract: A holographic storage system. A low over-sampling technology and an adaptable gain-controlling unit are used in the holographic storage system for unequally amplifying signals generated by a detecting apparatus. Then the amplified signals generated by the detecting apparatus are summed in order to generate summing signals, which are used to detect original image frames for raising the resolution of the images and reducing the error rate of the data.Type: ApplicationFiled: January 4, 2007Publication date: March 13, 2008Applicant: LITE-ONIT CORP.Inventors: Hsin-Ping Cheng, Chia-Yen Chang
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Publication number: 20070002702Abstract: The present invention discloses an aberration correcting method for use between an optical disc drive and an optical disc. The optical disc drive includes an optical pickup head having an aberration-correcting unit and a control chipset. The method includes steps of: operating the optical pickup head in a focusing-locked and tracking-unlocked state; generating a read-back signal by projecting a laser beam to the optical disc; converting the read-back signal into a radio frequency signal and a tracking error signal by the control chipset; detecting corresponding amplitudes of the radio frequency signal or the tracking error signal at different compensation values by the control chipset; determining a target compensation value by selecting the compensation value corresponding to the maximum amplitude of the tracking error signal or the radio frequency signal; and controlling the aberration-correcting unit according to the target compensation value.Type: ApplicationFiled: June 21, 2006Publication date: January 4, 2007Applicant: Lite-On It Corp.Inventors: Hsin-Ping Cheng, Jui-Cheng Lee, Wen-Chun Hsu
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Patent number: 7145849Abstract: A method of tracking error correction, primarily for utilization in optical disc drives using single beam optical pick-up heads. Delinearization in the tracking servo of a single beam optical pick-up head, contributed to by inherent design properties, is minimized by extracting a value proportional to a tracking error signal offset component from a tracking servo demand signal, applying a scaling factor to match the scaling applied to the tracking servo demand signal with scaling applied to the amplified tracking error signal, and subtracting the product of this function from the source signal i.e. the tracking error signal. The modified source signal, following this operation, has a reduced order of tracking error offset.Type: GrantFiled: June 2, 2004Date of Patent: December 5, 2006Assignee: Lite-On It CorporationInventors: Chia-Yen Chang, Hsin-Ping Cheng
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Publication number: 20060028963Abstract: A method for generating a feedback signal in optical disc drives is disclosed. Firstly RF signal is generated by a pickup head and coupled to a converter to generate a digital signal. Then a detector generates a plurality of pseudo-jitter according to the digital signal. Thereafter a calculator receives the said pseudo-jitter and calculates for outputting a feedback signal to the pickup head.Type: ApplicationFiled: August 4, 2005Publication date: February 9, 2006Inventor: Hsin-Ping Cheng
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Publication number: 20050270921Abstract: A method of tracking error correction, primarily for utilization in optical disc drives using single beam optical pick-up heads. Delinearization in the tracking servo of a single beam optical pick-up head, contributed to by inherent design properties, is minimized by extracting a value proportional to a tracking error signal offset component from a tracking servo demand signal, applying a scaling factor to match the scaling applied to the tracking servo demand signal with scaling applied to the amplified tracking error signal, and subtracting the product of this function from the source signal i.e. the tracking error signal. The modified source signal, following this operation, has a reduced order of tracking error offset.Type: ApplicationFiled: June 2, 2004Publication date: December 8, 2005Inventors: Chia-Yen Chang, Hsin-Ping Cheng