Patents by Inventor Chih-Lung Lin
Chih-Lung Lin 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: 20210125547Abstract: A pixel circuit including a compensation circuit, a writing circuit, a light emitting element, and a power supplying circuit is provided. The compensation circuit comprises a first node, and provides a driving current to the light emitting element according to a voltage of the first node and a system high voltage. The writing circuit provides a data voltage to the compensation circuit according to a first control signal so that the compensation circuit sets the voltage of the first node. The power supplying circuit selectively couples the compensation circuit to the light emitting element, and provides the system high voltage and a system low voltage to the compensation circuit, in which the system low voltage is configured to reset the voltage of the first node. The first control signal and the second control signal are opposite to the first emission signal and the second emission signal, respectively.Type: ApplicationFiled: October 20, 2020Publication date: April 29, 2021Inventors: Chih-Lung LIN, Po-Cheng LAI, Ting-Ching CHU, Po-Chun LAI, Mao-Hsun CHENG
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Patent number: 10986349Abstract: When encoding/decoding a current block of a current picture using intra block copy (“BC”) prediction, the location of a reference block is constrained so that it can be entirely within an inner search area of the current picture or entirely within an outer search area of the current picture, but cannot overlap both the inner search area and the outer search area. In some hardware-based implementations, on-chip memory buffers sample values of the inner search area, and off-chip memory buffers sample values of the outer search area. By enforcing this constraint on the location of the reference block, an encoder/decoder can avoid memory access operations that are split between on-chip memory and off-chip memory when retrieving the sample values of the reference block. At the same time, a reference block close to the current block may be used for intra BC prediction, helping compression efficiency.Type: GrantFiled: January 9, 2018Date of Patent: April 20, 2021Assignee: Microsoft Technology Licensing, LLCInventors: You Zhou, Chih-Lung Lin, Ming-Chieh Lee
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Patent number: 10964245Abstract: A shift register circuit and a gate driver including the shift register circuit. The shift register circuit includes an input circuit, a drive circuit, a pull-down circuit, a regulator circuit and a pull-up circuit. The input circuit is configured to receive a first clock signal and is coupled to the first node. The driving circuit is configured to receive the first clock signal and a second clock signal. The input circuit is coupled to the first node. The pull-down circuit is configured to receive the voltage of the first node. The pull-down circuit is coupled to the first node and an output terminal. The pull-down circuit outputs the first voltage to the output terminal in response to the voltage of the first node.Type: GrantFiled: October 15, 2019Date of Patent: March 30, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Po-Cheng Lai, Mao-Hsun Cheng, Cheng-Han Huang, Yung-Chih Chen, Ching-Sheng Cheng, Chih-Lung Lin
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Publication number: 20210092411Abstract: With adaptive multiple quantization, a video or other digital media codec can adaptively select among multiple quantizers to apply to transform coefficients. The switch in quantizers can be signaled at the sequence level or frame level of the bitstream syntax, or can be implicitly specified in the syntax.Type: ApplicationFiled: December 4, 2020Publication date: March 25, 2021Applicant: Microsoft Technology Licensing, LLCInventors: Thomas W. Holcomb, Chih-Lung Lin, Pohsiang Hsu, Sridhar Srinivasan
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Patent number: 10958916Abstract: A video codec uses fractional increments of quantization step size at high bit rates to permit a more continuous variation of quality and/or bit rate as the quantization scale changes. For high bit rate scenarios, the bit stream syntax includes an additional syntax element to specify fractional step increments (e.g., half step) of the normal quantizer scale step sizes.Type: GrantFiled: February 3, 2020Date of Patent: March 23, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Thomas W. Holcomb, Sridhar Srinivasan, Pohsiang Hsu, Chih-Lung Lin
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Patent number: 10958917Abstract: Techniques and tools are described for decoding jointly coded information. For example, a decoder decodes a variable length code [“VLC”] signaled at macroblock level that jointly represents a transform type signal level, transform type, and subblock pattern. The decoder decodes one or more VLCs signaled at block level, each jointly representing a transform type and subblock pattern. The decoder may select between multiple VLC tables for the VLCs signaled macroblock level and/or block level.Type: GrantFiled: February 4, 2020Date of Patent: March 23, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Thomas W. Holcomb, Chih-Lung Lin, Shankar Regunathan, Sridhar Srinivasan
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Publication number: 20210074195Abstract: A pixel circuit includes a light emitting element, a first driver transistor, a second driver transistor, and a first compensation capacitor. A first terminal of the first driving transistor is configured to receive a power signal, and a second terminal of the first driving transistor is electrically coupled to the light emitting element. A first terminal of the second driving transistor receives the power signal, and a control terminal of the second driving transistor is electrically coupled to the light emitting element. The first compensation capacitance is electrically coupled to a control terminal of the first driving transistor and the second terminal of the second driving transistor, respectively.Type: ApplicationFiled: November 19, 2020Publication date: March 11, 2021Inventors: Chih-Lung Lin, Chin-Hsien Tseng, Po-Cheng Lai, Yu-Sheng Lin, Mao-Hsun Cheng
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Patent number: 10939945Abstract: A minimally invasive bone fracture positioning device includes a sleeve, a movable unit, and a support. The sleeve includes an alignment portion located on a longitudinal axis of the sleeve. The movable unit includes a positioning portion. The positioning portion is located on the longitudinal axis and is spaced from the alignment portion. The movable unit is mounted in a radial direction of the sleeve. The movable unit is slideable relative to the sleeve along the longitudinal axis. A support is coupled to the sleeve and the movable unit. The movable unit is spaced from the sleeve by the support.Type: GrantFiled: November 16, 2017Date of Patent: March 9, 2021Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTREInventors: Yue-Jun Wang, Chih-Hao Chang, Shih-Hua Huang, Chih-Lung Lin, Tung-Lin Tsai, Chun-Chieh Tseng, Li-Wen Weng
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Patent number: 10931967Abstract: Techniques and tools for video coding/decoding with motion resolution switching and sub-block transform coding/decoding are described. For example, a video encoder adaptively switches the resolution of motion estimation and compensation between quarter-pixel and half-pixel resolutions; a corresponding video decoder adaptively switches the resolution of motion compensation between quarter-pixel and half-pixel resolutions. For sub-block transform sizes, for example, a video encoder adaptively switches between 8×8, 8×4, and 4×8 DCTs when encoding 8×8 prediction residual blocks; a corresponding video decoder switches between 8×8, 8×4, and 4×8 inverse DCTs during decoding.Type: GrantFiled: January 28, 2020Date of Patent: February 23, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Pohsiang Hsu, Chih-Lung Lin, Ming-Chieh Lee, Thomas W. Holcomb, Sridhar Srinivasan
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Publication number: 20210048718Abstract: The present disclosure provides an electronic device, and the electronic device includes a plurality of touch sensing electrodes and a plurality of ultrasonic fingerprint sensing electrodes. The plurality of ultrasonic fingerprint sensing electrodes are disposed on the plurality of touch sensing electrodes, and a portion of the plurality of touch sensing electrodes are not overlapped with the plurality of ultrasonic fingerprint sensing electrodes.Type: ApplicationFiled: July 19, 2020Publication date: February 18, 2021Inventors: Huai-Ping Huang, Chih-Lung Lin, Chang-Chiang Cheng
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Patent number: 10924749Abstract: With adaptive multiple quantization, a video or other digital media codec can adaptively select among multiple quantizers to apply to transform coefficients. The switch in quantizers can be signaled at the sequence level or frame level of the bitstream syntax, or can be implicitly specified in the syntax.Type: GrantFiled: February 3, 2020Date of Patent: February 16, 2021Assignee: Microsoft Technology Licensing, LLCInventors: Thomas W. Holcomb, Chih-Lung Lin, Pohsiang Hsu, Sridhar Srinivasan
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Patent number: 10916169Abstract: A pixel circuit includes a light emitting element, a first driver transistor, a second driver transistor, and a first compensation capacitor. A first terminal of the first driving transistor is configured to receive a power signal, and a second terminal of the first driving transistor is electrically coupled to the light emitting element. A first terminal of the second driving transistor receives the power signal, and a control terminal of the second driving transistor is electrically coupled to the light emitting element. The first compensation capacitance is electrically coupled to a control terminal of the first driving transistor and the second terminal of the second driving transistor, respectively.Type: GrantFiled: June 10, 2019Date of Patent: February 9, 2021Assignee: AU OPTRONICS CORPORATIONInventors: Chih-Lung Lin, Chin-Hsien Tseng, Po-Cheng Lai, Yu-Sheng Lin, Mao-Hsun Cheng
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Patent number: 10915718Abstract: A radio frequency (RF) positioning system comprises transceivers, positioning tags, processing units and a computing host. One or multiple positioning tags are attached to a target object being located. When the transceivers first generate and transmit transmission signals, one or multiple tag antennas in the positioning tag receive the transmission signals and transmit back modulated signals. The transceivers then receive and transmit the modulated signals to the processing units. The processing units are configured to obtain received signals, and calculate frequency differences based on the received signals and the transmission signals. The computing host calculates position coordinates of tag antennas based on the frequency differences, and then calculates the orientation of the target object being located according to the position coordinates of the tag antennas.Type: GrantFiled: December 21, 2018Date of Patent: February 9, 2021Assignee: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTREInventors: Nai-Chun An, Yuan-Chih Lin, Hsiu-An Tsai, Shuo-Ching Chen, Chih-Lung Lin
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Patent number: 10819951Abstract: Techniques for recording video from a bitstream are described. In at least some implementations, video data generated as part of a communication session is recorded. According to various implementations, techniques described herein enable portions of an encoded bitstream of video data to be directly recorded as encoded frames and without requiring re-encoding of decoded frames.Type: GrantFiled: February 6, 2017Date of Patent: October 27, 2020Assignee: Microsoft Technology Licensing, LLCInventors: You Zhou, Chih-lung Lin, Mei-Hsuan Lu, Binlong Li, Ming-Chieh Lee
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Publication number: 20200329247Abstract: Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.Type: ApplicationFiled: June 24, 2020Publication date: October 15, 2020Applicant: Microsoft Technology Licensing, LLCInventors: Gary J. Sullivan, You Zhou, Chih-Lung Lin
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Publication number: 20200294436Abstract: A shift register circuit and a gate driver including the shift register circuit. The shift register circuit includes an input circuit, a drive circuit, a pull-down circuit, a regulator circuit and a pull-up circuit. The input circuit is configured to receive a first clock signal and is coupled to the first node. The driving circuit is configured to receive the first clock signal and a second clock signal. The input circuit is coupled to the first node. The pull-down circuit is configured to receive the voltage of the first node. The pull-down circuit is coupled to the first node and an output terminal. The pull-down circuit outputs the first voltage to the output terminal in response to the voltage of the first node.Type: ApplicationFiled: October 15, 2019Publication date: September 17, 2020Inventors: Po-Cheng LAI, Mao-Hsun CHENG, Cheng-Han HUANG, Yung-Chih CHEN, Ching-Sheng CHENG, Chih-Lung LIN
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Publication number: 20200252627Abstract: Various embodiments of the present technology generally relate to encoding techniques. More specifically, some embodiments relate to encoding techniques for screen data. Intra block copy (IntraBC) using motion compensation within a frame (not between frames) is very useful for encoding data captured from screen. Unfortunately, this tool is not included in most of video coding standards, including the base version of HEVC (i.e., H.265). Various embodiments of the present technology utilize encoding techniques to simulate IntraBC with compliant syntax. For example, embodiments divide a high-resolution frame into smaller areas and then encode these areas independently as if these smaller areas were independent frames.Type: ApplicationFiled: April 24, 2020Publication date: August 6, 2020Applicant: Microsoft Technology Licensing, LLCInventors: You Zhou, Chih-Lung Lin, Ming Chieh Lee
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Patent number: 10735747Abstract: Approaches to selection of motion vector (“MV”) precision during video encoding are presented. These approaches can facilitate compression that is effective in terms of rate-distortion performance and/or computational efficiency. For example, a video encoder determines an MV precision for a unit of video from among multiple MV precisions, which include one or more fractional-sample MV precisions and integer-sample MV precision. The video encoder can identify a set of MV values having a fractional-sample MV precision, then select the MV precision for the unit based at least in part on prevalence of MV values (within the set) having a fractional part of zero. Or, the video encoder can perform rate-distortion analysis, where the rate-distortion analysis is biased towards the integer-sample MV precision. Or, the video encoder can collect information about the video and select the MV precision for the unit based at least in part on the collected information.Type: GrantFiled: January 31, 2020Date of Patent: August 4, 2020Assignee: Microsoft Technology Licensing, LLCInventors: Gary J. Sullivan, You Zhou, Chih-Lung Lin
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Patent number: 10708594Abstract: Disclosed herein are exemplary embodiments of innovations in the area of encoding pictures or portions of pictures and determining whether and how certain encoding operations should be performed and flagged for performance by the decoder in the bitstream. In particular examples, various implementations for selectively encoding picture portions (e.g., blocks) in a skip mode (e.g., as in the skip mode of the H.265/HEVC standard) are disclosed. Embodiments of the disclosed techniques can be used to improve encoder efficiency, decrease overall encoder resource usage, and/or improve encoder speed. Such embodiments can be used in encoder modes in which efficient, fast encoder performance is desired (e.g., during encoding of live events, such as video conferencing).Type: GrantFiled: November 19, 2018Date of Patent: July 7, 2020Assignee: Microsoft Technology Licensing, LLCInventors: You Zhou, Sergey Sablin, Chih-Lung Lin, Ming-Chieh Lee
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Publication number: 20200202087Abstract: A radio frequency (RF) positioning system comprises transceivers, positioning tags, processing units and a computing host. One or multiple positioning tags are attached to a target object being located. When the transceivers first generate and transmit transmission signals, one or multiple tag antennas in the positioning tag receive the transmission signals and transmit back modulated signals. The transceivers then receive and transmit the modulated signals to the processing units. The processing units are configured to obtain received signals, and calculate frequency differences based on the received signals and the transmission signals. The computing host calculates position coordinates of tag antennas based on the frequency differences, and then calculates the orientation of the target object being located according to the position coordinates of the tag antennas.Type: ApplicationFiled: December 21, 2018Publication date: June 25, 2020Applicant: METAL INDUSTRIES RESEARCH & DEVELOPMENT CENTREInventors: NAI-CHUN AN, YUAN-CHIH LIN, HSIU-AN TSAI, SHUO-CHING CHEN, CHIH-LUNG LIN