Patents by Inventor Wei-Te Chang
Wei-Te Chang 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: 20240162318Abstract: A thin film transistor includes a gate electrode embedded in an insulating layer that overlies a substrate, a gate dielectric overlying the gate electrode, an active layer comprising a compound semiconductor material and overlying the gate dielectric, and a source electrode and drain electrode contacting end portions of the active layer. The gate dielectric may have thicker portions over interfaces with the insulating layer to suppress hydrogen diffusion therethrough. Additionally or alternatively, a passivation capping dielectric including a dielectric metal oxide material may be interposed between the active layer and a dielectric layer overlying the active layer to suppress hydrogen diffusion therethrough.Type: ApplicationFiled: January 26, 2024Publication date: May 16, 2024Inventors: Min-Kun DAI, Wei-Gang CHIU, I-Cheng CHANG, Cheng-Yi WU, Han-Ting TSAI, Tsann LIN, Chung-Te LIN
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Publication number: 20240163075Abstract: The present disclosure provides a privacy computing method based on homomorphic encryption, which includes steps as follows. The ciphertext data is received, where the ciphertext data has a floating-point homomorphic encryption data structure, and the floating-point homomorphic encryption data structure of the ciphertext data includes the ciphertext mantissa, exponent parameter and gain parameter. The gain parameter sets the precision of the floating point corresponding to the ciphertext mantissa. The exponent parameter is adapted to multiplication or division. The artificial intelligence model performs operations on the ciphertext data to return the ciphertext result.Type: ApplicationFiled: February 17, 2023Publication date: May 16, 2024Inventors: Yu Te KU, Chih-Fan HSU, Wei-Chao CHEN, Feng-Hao LIU, Ming-Ching CHANG
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Patent number: 11935935Abstract: A thin film transistor includes a gate electrode embedded in an insulating layer that overlies a substrate, a gate dielectric overlying the gate electrode, an active layer comprising a compound semiconductor material and overlying the gate dielectric, and a source electrode and drain electrode contacting end portions of the active layer. The gate dielectric may have thicker portions over interfaces with the insulating layer to suppress hydrogen diffusion therethrough. Additionally or alternatively, a passivation capping dielectric including a dielectric metal oxide material may be interposed between the active layer and a dielectric layer overlying the active layer to suppress hydrogen diffusion therethrough.Type: GrantFiled: November 11, 2021Date of Patent: March 19, 2024Assignee: Taiwan Semiconductor Manufacturing Company LimitedInventors: Min-Kun Dai, Wei-Gang Chiu, I-Cheng Chang, Cheng-Yi Wu, Han-Ting Tsai, Tsann Lin, Chung-Te Lin
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Patent number: 10055823Abstract: A method for generating a pixel filtering boundary required by the auto white balance (AWB) calibration is proposed. The method includes: taking a specific color temperature reference point as a center and dividing a G/B-G/R color space into six color regions having different color component relationships; based on a saturation calculating approach of a HSV color space, respectively identifying six color boundaries in the six color regions to generate a specific hexagonal filtering boundary, so that each color boundary has a predetermined saturation difference with the specific color temperature reference point; adopting the approach for generating the specific hexagonal filtering boundary to respectively identify multiple hexagonal filtering boundaries corresponding to other color temperature reference points; generating an enveloping boundary as a pixel filtering boundary based on the specific hexagonal filtering boundary and the multiple hexagonal filtering boundaries.Type: GrantFiled: October 12, 2016Date of Patent: August 21, 2018Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Wei-Te Chang, Shih-Tse Chen
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Patent number: 9800793Abstract: A method for generating a target gain value of a wide dynamic range (WDR) operation is disclosed including: acquiring an average bright portion luminance corresponding to an average pixel luminance of a bright portion of a video image; acquiring an average dark portion luminance corresponding to an average pixel luminance of a dark portion of the video image; generating an initial gain value of the WDR operation according to a difference between the average bright portion luminance and the average dark portion luminance; and adjusting the initial gain value according to at least one of a color temperature and an exposure duration configuration value of the video image to generate the target gain value.Type: GrantFiled: October 18, 2016Date of Patent: October 24, 2017Assignee: REALTEK SEMICONDUCTOR CORP.Inventors: Wei-Te Chang, Shih-Tse Chen
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Publication number: 20170206641Abstract: A method for generating a pixel filtering boundary required by the auto white balance (AWB) calibration is proposed. The method includes: taking a specific color temperature reference point as a center and dividing a G/B-G/R color space into six color regions having different color component relationships; based on a saturation calculating approach of a HSV color space, respectively identifying six color boundaries in the six color regions to generate a specific hexagonal filtering boundary, so that each color boundary has a predetermined saturation difference with the specific color temperature reference point; adopting the approach for generating the specific hexagonal filtering boundary to respectively identify multiple hexagonal filtering boundaries corresponding to other color temperature reference points; generating an enveloping boundary as a pixel filtering boundary based on the specific hexagonal filtering boundary and the multiple hexagonal filtering boundaries.Type: ApplicationFiled: October 12, 2016Publication date: July 20, 2017Applicant: Realtek Semiconductor Corp.Inventors: Wei-Te CHANG, Shih-Tse CHEN
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Publication number: 20170208233Abstract: A method for generating a target gain value of a wide dynamic range (WDR) operation is disclosed including: acquiring an average bright portion luminance corresponding to an average pixel luminance of a bright portion of a video image; acquiring an average dark portion luminance corresponding to an average pixel luminance of a dark portion of the video image; generating an initial gain value of the WDR operation according to a difference between the average bright portion luminance and the average dark portion luminance; and adjusting the initial gain value according to at least one of a color temperature and an exposure duration configuration value of the video image to generate the target gain value.Type: ApplicationFiled: October 18, 2016Publication date: July 20, 2017Applicant: Realtek Semiconductor Corp.Inventors: Wei-Te CHANG, Shih-Tse CHEN
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Patent number: 9621785Abstract: A passive auto-focus device and method are disclosed herein. An embodiment of the passive auto-focus device comprises: a focus-searching-range decision circuit operable to compare a range of a variation area of a current scene with a predetermined range and determine a focus-searching range, in which the variation area is defined according to the comparison between the current scene and a preceding scene; a focal-distance-variation decision circuit operable to compare the definition pertaining to the focus-searching range with a first predetermined definition and generate a current step setting value; an image record generating circuit operable to generate first step image records in connection with the focus-searching range while the current step setting value indicates a first step and to generate second step image records in connection with the focus-searching range while the current step setting value indicates a second step, in which the first step is shorter than the second step.Type: GrantFiled: January 22, 2015Date of Patent: April 11, 2017Assignee: REALTEK SEMICONDUCTOR CORPORATIONInventors: Wei-Te Chang, Shih-Tse Chen
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Publication number: 20170069068Abstract: A wide dynamic range imaging method provided by an exemplary embodiment of the present disclosure has steps as follows. According to a first difference value between a light-part average luminance value and a dark-part average luminance value of an image, a first enhancing value is obtained. According to the dark-part average luminance value and a dark-part pixel number, the first enhancing value is adjusted to generate a second enhancing value. A light-part weighted average value in first regions of the image and a dark-part weighted average value in second regions of the image are calculated, a second difference value between the dark-part weighted average value and the light-part weighted average value is calculated, and the second enhancing value is adjusted to generate a third enhancing value according to the second difference value. The third enhancing value is used to selectively adjust pixels of the image.Type: ApplicationFiled: August 5, 2016Publication date: March 9, 2017Inventors: WEI-TE CHANG, SHIH-TSE CHEN
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Publication number: 20150312469Abstract: A passive auto-focus device and method are disclosed herein. An embodiment of the passive auto-focus device comprises: a focus-searching-range decision circuit operable to compare a range of a variation area of a current scene with a predetermined range and determine a focus-searching range, in which the variation area is defined according to the comparison between the current scene and a preceding scene; a focal-distance-variation decision circuit operable to compare the definition pertaining to the focus-searching range with a first predetermined definition and generate a current step setting value; an image record generating circuit operable to generate first step image records in connection with the focus-searching range while the current step setting value indicates a first step and to generate second step image records in connection with the focus-searching range while the current step setting value indicates a second step, in which the first step is shorter than the second step.Type: ApplicationFiled: January 22, 2015Publication date: October 29, 2015Inventors: Wei-Te Chang, Shih-Tse Chen