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公开(公告)号：US10250896B2
公开(公告)日：2019-04-02
申请号：US15287857
申请日：2016-10-07
Applicant: VIA ALLIANCE SEMICONDUCTOR CO., LTD.
Inventor： Heng Que , Deming Gu , Zhou Hong , Yuanfeng Wang
IPC: H04N19/176 , H04N19/17 , H04N19/436 , H04N19/593
Abstract: An image compression method based on JPEG-LS is presented. In the method, the M×N pixels in the source image are divided into k groups. M, N, and k are all integers larger than one. Each group corresponds to a plurality of pixels among the M×N pixels. The decorrelation procedure and the context modeling procedure are performed for each of the plurality of pixels in the ith group of the k groups. The compensation look-up table is not refreshed until all pixels in the ith group are performed with the decorrelation procedure and the context modeling procedure.
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公开(公告)号：US10247550B2
公开(公告)日：2019-04-02
申请号：US15366090
申请日：2016-12-01
Applicant: VIA Alliance Semiconductor Co., Ltd.
Inventor： Xia Lin , Dongxing Wu , Deming Gu , Yang Mao
Abstract: A mobile device including an acceleration sensor, a magneto sensor, a gyroscope sensor, and a processor is provided. The acceleration sensor, the magneto sensor, and the gyroscope sensor generate acceleration data, magnetic field data, and angular velocity data, respectively. The processor determines a pitch angle and a roll angle according to the acceleration data, determines a yaw angle according to the magnetic field data, and determines a quaternion according to the pitch angle, the roll angle, and the yaw angle. Also, the processor determines orientation information of the mobile device according to the quaternion and the angular velocity data, and adjusts the orientation information according to the acceleration data and the magnetic field data.
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公开(公告)号：US11307609B2
公开(公告)日：2022-04-19
申请号：US16383906
申请日：2019-04-15
Applicant: VIA Alliance Semiconductor Co., Ltd.
Inventor： Jiangze Chen , Dongxing Wu , Deming Gu , Guixiang He , Kangning Zhu
Abstract: A method provides data synchronization between a sensor hub and an application processor, which contains at least the following steps: generating and adding a plurality of absolute time stamps in a sensor-data stream; and generating and adding a plurality of pieces of sensor data and a plurality of relative time stamps in the sensor-data stream between the moments of generating each two adjacent absolute time stamps, wherein each relative time stamp is associated with one piece of sensor data.
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公开(公告)号：US10210034B2
公开(公告)日：2019-02-19
申请号：US15270921
申请日：2016-09-20
Applicant: VIA ALLIANCE SEMICONDUCTOR CO., LTD.
Inventor： Heng Que , Quanquan Xu , Deming Gu , Yuanfeng Wang
IPC: G06F11/07
Abstract: An electronic device, for integration with functional circuit modules, includes gates, monitor module, signal control module and record module. The functional modules are operated on clock signal for generating request instruction and response signal. The gate is coupled to the functional modules for transmitting request instruction and response signal to functional module on enable signals. The monitor module is coupled to the functional modules and the gates for generating hold signal. The monitor module generates enable signals on finish signal. The clock signal control module coupled to the functional modules and the monitor module for outputs main clock signal to generate clock signals. The clock signal control module generates record instruction and stop clock signals, and the clock signal control module re-outputs clock signals on finish signal. The record module coupled to the functional modules and the clock signal control module begins to record request instruction and response signal when receiving record instruction.
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公开(公告)号：US11037268B2
公开(公告)日：2021-06-15
申请号：US15626345
申请日：2017-06-19
Applicant: VIA Alliance Semiconductor Co., Ltd.
Inventor： Deming Gu
IPC: G06T1/20
Abstract: A method for improving image quality by using multi-resolution is provided. The method includes: receiving an image data; dividing the image data into areas corresponding to different resolutions according to first parameter information, wherein the resolutions correspond to different frequencies; rendering the areas with the different frequencies in a single pass and outputting a rendered image data; and resolving the rendered image data into a final output image data with a first resolution according to second parameter information.
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Patent Agency Ranking
公开(公告)号：US10209758B2
公开(公告)日：2019-02-19
申请号：US15510261
申请日：2014-12-12
Applicant: VIA Alliance Semiconductor Co., Ltd.
Abstract: A graphics processing system and power gating method thereof, the graphics processing system comprising: a graphics processing unit (GPU), a bus interface and a power management unit (PMU), the GPU comprising a control circuit and a plurality of partitions; the method includes: when the bus interface receives an external graphics command, utilizing the PMU to turn on a power supply of the control circuit; subsequently utilizing the control circuit to turn on power supplies of one or more partitions of the plurality of partitions corresponding to the external graphics command; when then control circuit detects any one of the plurality of partitions is in an idle state, utilizing the control circuit to turn off the power supply of the partition in the idle state; when the bus interface detects the plurality of partitions are in a full idle state, utilizing the bus interface to turn off the power supply of the control circuit via the PMU; and when the PMU turns off the power supply of the control circuit, the control circuit may also turn off the power supplies of the plurality of the partitions.
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公开(公告)号：US11425403B2
公开(公告)日：2022-08-23
申请号：US17160556
申请日：2021-01-28
Applicant: VIA Alliance Semiconductor Co., Ltd.
Inventor： Yemao Shen , Deming Gu , Heng Que , Wei Zhang
IPC: H04N19/426 , G06T7/90 , H04N19/593 , G06T9/00 , H04N19/136 , H04N19/65
Abstract: The invention introduces a method for compressing texture tiles, which contains at least the following steps: lossless-compressing raw data of a texture tile; determining whether a length of the lossless-compression result of the raw data is greater than a target result; and when the length of the lossless-compression result of the raw data is greater than the target length, performing data-reduction control in layers for generating reduced data by reducing the raw data, and generating a lossless-compression result of the reduced data, thereby enabling the length of the lossless-compression result of the reduced data to be equal to the target length or shorter.
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公开(公告)号：US09804659B2
公开(公告)日：2017-10-31
申请号：US14930944
申请日：2015-11-03
Applicant: VIA Alliance Semiconductor Co., Ltd.
CPC classification number: G06F1/324 , G06F1/32 , G06F1/3275 , G06F3/0604 , G06F3/0625 , G06F3/0629 , G06F3/067 , G06F15/78 , Y02D10/12 , Y02D10/13
Abstract: An on-chip sensor hub fabricated on a chip with a main processor of a mobile device, and the mobile device, and a method for multi-sensor management on the mobile device. An on-chip sensor hub includes a co-processor and uses an inter-process communication interface. The co-processor and main processor of the mobile device are fabricated on the same chip and communicate with each other via the inter-process communication interface. The co-processor controls a plurality of sensors in the mobile device in accordance with requests issued from the main processor. The co-processor further collects and manages sensor data from the sensors to be processed by the main processor.
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公开(公告)号：US10606335B2
公开(公告)日：2020-03-31
申请号：US15510266
申请日：2014-12-12
Applicant: VIA Alliance Semiconductor Co., Ltd.
IPC: G06F1/32 , G06F1/324 , G06F1/3296
Abstract: A dynamic voltage frequency scaling (DVFS) system is provided. The DVFS system includes: a computation unit, a power management unit (PMU), a hardware activity monitor (HAM), and a hardware voltage monitor (HVM). The HAM monitors a working status and temperature information of the computation unit, and determines whether to update an operating voltage and frequency of the computation unit according to the working status, the temperature information, and a previous determination result. When the HAM determines to update the operating voltage and frequency, the HAM generates a first control signal to the PMU to calibrate the operating voltage and frequency. The HVM detects timing information of the computation unit and determine whether to fine-tune the operating voltage according to the detected timing information. When the HVM determines to fine-tune the operating voltage, the hardware monitor generates a second control signal to the PMU to fine-tune the operating voltage.
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公开(公告)号：US10482850B2
公开(公告)日：2019-11-19
申请号：US15626350
申请日：2017-06-19
Applicant: VIA Alliance Semiconductor Co., Ltd.
Inventor： Deming Gu , Fengxia Wu , Huaisheng Zhang , Wei Zhang
IPC: G09G5/391
Abstract: A method for improving image quality is provided. The method includes: receiving an image data and sensing information; dividing the image data into areas corresponding to different resolutions according to first parameter information, wherein the different resolutions correspond to different frequencies; rendering the areas in a single pass according to the sensing information and the different frequencies and outputting a rendered image data; and resolving the rendered image data into a final output image data with a first resolution according to second parameter information.
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