Patents by Inventor Ming-Chang Tsai
Ming-Chang Tsai 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: 11977302Abstract: A cholesteric liquid crystal display device and a driving method for improving non-uniform image quality of the cholesteric liquid crystal display device. The cholesteric liquid crystal display device includes a cholesteric liquid crystal display panel and a liquid crystal drive unit. The cholesteric liquid crystal display panel is composed of multiple row circuit structures and multiple column circuit structures. The liquid crystal driving unit sequentially outputs column driving voltages to a plurality of column circuit structures in a scanning manner. After scanning the multiple column circuit structures, the liquid crystal driving unit applies an unselected voltage to the multiple column circuit structures together with more than 18 times the scanning unit time course, so as to make the brightness of the overall picture more uniform.Type: GrantFiled: December 8, 2022Date of Patent: May 7, 2024Assignee: IRIS OPTRONICS CO., LTD.Inventors: Ming-Liang Tsai, Wu-Chang Yang, Chi-Chang Liao
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Publication number: 20240111139Abstract: An imaging lens assembly module includes a lens barrel, a catadioptric lens assembly, an imaging lens assembly, a first fixing element and a second fixing element. The lens barrel has a first relying surface and a second relying surface, which face towards an object side of the imaging lens assembly module. The catadioptric lens assembly relies on the first relying surface. The imaging lens assembly is disposed on an image side of the catadioptric lens assembly, and relies on the second relying surface. The first fixing element is for fixing the catadioptric lens assembly to the lens barrel. The second fixing element is for fixing the imaging lens assembly to the lens barrel. The catadioptric lens assembly is for processing at least twice internal reflections of an image light in the imaging lens assembly module, and for providing optical refractive power.Type: ApplicationFiled: September 26, 2023Publication date: April 4, 2024Inventors: Lin-An CHANG, Chung Hao CHEN, Wen-Yu TSAI, Ming-Ta CHOU
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Patent number: 11948528Abstract: The present invention relates to a driving method of a cholesteric liquid crystal display. It includes the steps in the following: driving each scan line by a dynamic driving scheme (DDS) including an Evolution phase; refreshing a frame of the cholesteric liquid crystal display by a full refresh mode, each scan line driven N times during the Evolution phase in the full refresh mode; and refreshing a part of the frame by a partial-refresh mode, each scan line driven M times in the Evolution phase in the partial-refresh mode, wherein M is greater than N.Type: GrantFiled: May 10, 2023Date of Patent: April 2, 2024Assignee: IRIS OPTRONICS CO., LTD.Inventors: Ming-Liang Tsai, Wu-Chang Yang, Chi-Chang Liao
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Publication number: 20240071263Abstract: The present invention provides a display panel, including a backplane having flexibility, a first fixing member, a front frame having flexibility, and a display module provided between the backplane and the front frame. The backplane has a base plate with a first side. The first fixing member extends corresponding to the first side and has a first predetermined curvature. The first fixing member at least has a first wall body standing upright relative to the base plate, and the first fixing member is relatively fixed to the backplane, so that the curvature of the backplane can be adjusted corresponding to the first fixing member. The front frame is provided in a manner that extends correspondingly to the periphery of the backplane, and is relatively fixed to the backplane, so that the curvature of the front frame is relatively adapted to that of the backplane.Type: ApplicationFiled: August 28, 2023Publication date: February 29, 2024Inventors: MING-CHIN TSAI, CHIA-HSIN JOW, CHI-CHANG CHEN, CHIA-HSIN CHANG
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Publication number: 20230224735Abstract: A smart channel switching method based on history channel data, and its terminal device and readable storage medium are disclosed. The method includes the steps of: capturing a history current noise value or transmission capacity of each channel of a wireless device and obtaining a healthrate of the channel; obtaining a health ratio by the transmission quantity of each channel and the corresponding healthrate; comparing the health ratio with a threshold, and switching the connection of the wireless device to a channel with the health ratio below the threshold when the health ratio reaches the threshold. In this way, this invention obtains a health ratio by the history current noise value or transmission capacity of each channel, compares the health ratio with the threshold to determine whether the transmission capacity is sufficient, and switches a channel accordingly without requiring any change of the communication protocol.Type: ApplicationFiled: February 15, 2022Publication date: July 13, 2023Inventors: MING-CHANG TSAI, TING-WEI LIU
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Patent number: 11418229Abstract: A wireless switch control device and method are provided. The wireless switch control device includes a flexible printed circuit (FPC) board, a load switch, and a wireless control circuit. The FPC board has a first electrode region, a second electrode region, and a component placement region, where the first electrode region is in electrical contact with an anode of the battery module, and the second electrode region is in electrical contact with a cathode of the battery module. The load switch is provided in the component placement region, and coupled to a power supply circuit between the battery module and the electronic product. The wireless control circuit is provided in the component placement region, and coupled to both the load switch and the anode of the battery module. The wireless control circuit receives a setting instruction wirelessly, and controls the load switch according to the setting instruction.Type: GrantFiled: March 19, 2020Date of Patent: August 16, 2022Assignee: UNIVERSAL SCIENTIFIC INDUSTRIAL (SHANGHAI) CO., LTD.Inventor: Ming-Chang Tsai
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Publication number: 20210226657Abstract: A wireless switch control device and method are provided. The wireless switch control device includes a flexible printed circuit (FPC) board, a load switch, and a wireless control circuit. The FPC board has a first electrode region, a second electrode region, and a component placement region, where the first electrode region is in electrical contact with an anode of the battery module, and the second electrode region is in electrical contact with a cathode of the battery module. The load switch is provided in the component placement region, and coupled to a power supply circuit between the battery module and the electronic product. The wireless control circuit is provided in the component placement region, and coupled to both the load switch and the anode of the battery module. The wireless control circuit receives a setting instruction wirelessly, and controls the load switch according to the setting instruction.Type: ApplicationFiled: March 19, 2020Publication date: July 22, 2021Inventor: Ming-Chang Tsai
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Patent number: 10783959Abstract: A method of compensating charge loss and source line bias in programing of non-volatile memory device including the steps of reading a previous program page with a low reference voltage to make an original previous program pattern, merging the original previous program pattern and a current program pattern to make a merged program pattern, reading the previous program page with a high reference voltage to make a verified previous program pattern, and merging the verified previous program pattern and the merged program pattern to make a compensated current program pattern.Type: GrantFiled: May 3, 2019Date of Patent: September 22, 2020Assignee: Powerchip Semiconductor Manufacturing CorporationInventors: Chun-Yi Tu, Ming-Chang Tsai, Jui-Lung Weng
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Publication number: 20200219561Abstract: A method of compensating charge loss and source line bias in programing of non-volatile memory device including the steps of reading a previous program page with a low reference voltage to make an original previous program pattern, merging the original previous program pattern and a current program pattern to make a merged program pattern, reading the previous program page with a high reference voltage to make a verified previous program pattern, and merging the verified previous program pattern and the merged program pattern to make a compensated current program pattern.Type: ApplicationFiled: May 3, 2019Publication date: July 9, 2020Inventors: Chun-Yi Tu, Ming-Chang Tsai, Jui-Lung Weng
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Patent number: 10290363Abstract: A non-volatile memory device and an error compensation method for verifying the same are provided. The non-volatile memory device includes a memory block, a word line driver, a bit line circuit and a controller. The memory block includes multiple memory cells. After a first programming process and a first verification process are performed on the memory cells, the controller performs reverse reading to the control terminals of the memory cells, applies a preset voltage to the control terminals of the memory cells according to preset programming data by using the word line driver, reads data from the memory cells by using the bit line circuit, and determines whether the data of each memory cell is normal according to the data read from the memory cells. When the data of specific memory cells is not normal, the controller performs a second programming process to the specific memory cells.Type: GrantFiled: February 26, 2018Date of Patent: May 14, 2019Assignee: Powerchip Technology CorporationInventors: Ming-Chang Tsai, Chun-Yi Tu
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Publication number: 20190115092Abstract: A non-volatile memory device and an error compensation method for verifying the same are provided. The non-volatile memory device includes a memory block, a word line driver, a bit line circuit and a controller. The memory block includes multiple memory cells. After a first programming process and a first verification process are performed on the memory cells, the controller performs reverse reading to the control terminals of the memory cells, applies a preset voltage to the control terminals of the memory cells according to preset programming data by using the word line driver, reads data from the memory cells by using the bit line circuit, and determines whether the data of each memory cell is normal according to the data read from the memory cells. When the data of specific memory cells is not normal, the controller performs a second programming process to the specific memory cells.Type: ApplicationFiled: February 26, 2018Publication date: April 18, 2019Applicant: Powerchip Technology CorporationInventors: Ming-Chang Tsai, Chun-Yi Tu
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Patent number: 9383856Abstract: A touch sensing circuit and method is provided. The touch sensing circuit discriminates a common voltage change of a display panel couple to the touch sensor in a touch panel display apparatus. The touch sensor comprises a plurality of sensor electrodes. The touch sensing circuit includes a plurality of channel circuits, each of which includes a reset switch and a sensing switch for alternately conducting an associated sensor electrode to a reset voltage and a charge collecting circuit. The channel circuits are divided to different groups that operate according to interleaving timings for encompassing possible common voltage changes.Type: GrantFiled: October 5, 2011Date of Patent: July 5, 2016Assignee: MStar Semiconductor, Inc.Inventors: Guo-Kiang Hung, Hsuan-I Pan, Ming-Chang Tsai, Meng-Chang Lee, Shih-Tsung Yang
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Patent number: 9381599Abstract: A manufacturing method of a heat dissipation assembly includes the following steps: an accommodating concave portion and hollow areas are formed on a board body, and the hollow areas are through the board body located in the accommodating concave portion. The board body located in the accommodating concave portion is extended, such that the hollow areas are closed by the board body adjacent to the hollow areas. A heat pipe is placed in the accommodating concave portion, and the width of the heat pipe and the width of the accommodating concave portion are substantially the same. A stamping treatment is performed on the board body surrounding the accommodating concave portion to form positioning protruding portions, and the positioning protruding portions protrude toward the accommodating concave portion, such that the heat pipe is fixed between the positioning protruding portions and the accommodating concave portion.Type: GrantFiled: May 16, 2014Date of Patent: July 5, 2016Assignee: QUANTA COMPUTER INC.Inventors: Chi-Hsueh Yang, Ming-Chang Tsai, Wei-Han Chen, Hsiao-Fan Chang
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Publication number: 20160098080Abstract: A finger-touch tracking system is provided, including a magnet, a magnetic field sensing unit, and a computing unit. The magnet generates a magnetic field. The magnetic field sensing unit moves relative to the magnet, and has a substrate and a plurality of sensors disposed on the substrate. The sensors detect a magnetic flux density of the magnet, so as to generate a tracking signal reflecting a relative position of the magnet with respect to the magnetic field sensing unit. The computing unit receives the tracking signal via a network, and employs the received tracking signal as an input instruction upon the magnitude of the magnetic field.Type: ApplicationFiled: October 7, 2014Publication date: April 7, 2016Inventors: Bing-Yu Chen, Li-wei Chan, Rong-Hao Liang, Mike Y. Chen, Kai-Yin Cheng, Ming-Chang Tsai, Chao-Huai Su, Wen-Huang Cheng
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Patent number: 9113169Abstract: This disclosure describes techniques for region-of-interest (ROI) encoding. In accordance with the techniques described herein, an encoding device may determine a temporal spatial dependency value for a candidate reference video block for inter-coding a current block in a video frame. The encoding device may compare the temporal spatial dependency value to a threshold value and select a coding mode for the current block based on the comparison. A decoding device may receive data defining a ROI as well as the temporal spatial dependency value and decode a video block in the ROI based at least in part on the temporal spatial dependency value. In this manner, the techniques of this disclosure may allow a video content viewer the ability to choose a ROI to watch.Type: GrantFiled: May 7, 2009Date of Patent: August 18, 2015Assignee: Qualcomm IncorporatedInventors: Ming-Chang Tsai, Chia-Yuan Teng, Yan Ye
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Publication number: 20150165572Abstract: A manufacturing method of a heat dissipation assembly includes the following steps: an accommodating concave portion and hollow areas are formed on a board body, and the hollow areas are through the board body located in the accommodating concave portion. The board body located in the accommodating concave portion is extended, such that the hollow areas are closed by the board body adjacent to the hollow areas. A heat pipe is placed in the accommodating concave portion, and the width of the heat pipe and the width of the accommodating concave portion are substantially the same. A stamping treatment is performed on the board body surrounding the accommodating concave portion to form positioning protruding portions, and the positioning protruding portions protrude toward the accommodating concave portion, such that the heat pipe is fixed between the positioning protruding portions and the accommodating concave portion.Type: ApplicationFiled: May 16, 2014Publication date: June 18, 2015Applicant: Quanta Computer Inc.Inventors: Chi-Hsueh YANG, Ming-Chang TSAI, Wei-Han CHEN, Hsiao-Fan CHANG
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Patent number: 9036937Abstract: A repeated integral images method filters image data in only two passes, e.g., the first pass filters horizontal rows of pixels and a second pass filters vertical columns of pixels, or in a single pass. The filter performs at least one infinite impulse response (IIR) filter and at least one finite impulse response (FIR) filter on the image data. A plurality of IIR filters and FIR filters maybe performed to approximate a Gaussian filter. By minimizing the number of passes, the data flow between the processing unit and the storage unit is greatly reduced compared to conventional repeated integral images method thereby improving computation time.Type: GrantFiled: September 12, 2011Date of Patent: May 19, 2015Assignee: QUALCOMM IncorporatedInventors: Ming-Chang Tsai, Pawan K. Baheti, Murali R. Chari, Raghuraman Krishnamoorthi
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Patent number: 8977063Abstract: The disclosure is directed to techniques for region-of-interest (ROI) processing for video telephony (VT) applications. According to the disclosed techniques, a recipient device defines ROI information for video information transmitted by a sender device, i.e., far-end video information. The recipient device transmits the ROI information to the sender device. Using the ROI information transmitted by the recipient device, the sender device applies preferential encoding to an ROI within a video scene. ROI extraction may be applied to process a user description of a region of interest (ROI) to generate information specifying the ROI based on the description. The user description may be textual, graphical, or speech-based. An extraction module applies appropriate processing to generated the ROI information from the user description. The extraction module may locally reside with a video communication device, or reside in a distinct intermediate server configured for ROI extraction.Type: GrantFiled: July 15, 2005Date of Patent: March 10, 2015Assignee: Qualcomm IncorporatedInventors: Yen-Chi Lee, Khaled Helmi El-Maleh, Ming-Chang Tsai
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Patent number: 8976872Abstract: The disclosure is directed to techniques for picture-in-picture (PIP) processing for video telephony (VT). According to the disclosed techniques, a local video communication device transmits PIP information to a remote video communication device. Using the PIP information, the remote video communication device applies preferential encoding to non-PIP regions of video transmitted to the local video communication device.Type: GrantFiled: November 2, 2011Date of Patent: March 10, 2015Assignee: QUALCOMM IncorporatedInventors: Yen-Chi Lee, Khaled Helmi El-Maleh, Ming-Chang Tsai
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Patent number: D742201Type: GrantFiled: February 22, 2012Date of Patent: November 3, 2015Assignee: HON HAI PRECISION INDUSTRY CO., LTD.Inventors: Yuan-Yuan Bao, Xiao-Zhi Fu, Ze-Lin Yao, Ming-Chang Tsai, Jui-Chi Su, Chi-Tung Mo