公开(公告)号：US20210176475A1

公开(公告)日：2021-06-10

申请号：US17110208

申请日：2020-12-02

Applicant: MediaTek Inc.

Inventor： Chih-Wei Hsu ,  Lulin Chen ,  Yu-Ling Hsiao ,  Chun-Chia Chen ,  Ching-Yeh Chen ,  Chen-Yen Lai

IPC: H04N19/167 ,  H04N19/46 ,  H04N19/70 ,  H04N19/169 ,  H04N19/176

Abstract: A method for specifying layout of subpictures in video pictures is provided. A video decoder receives data from a bitstream to be decoded as a current picture of a video. For a current subpicture of a set of subpictures of the current picture, the video decoder determines a position of the current subpicture based on a width and a height of the current picture and a previously determined width and height of a particular subpicture in the set of subpictures. The video decoder reconstructs the current picture and the current subpicture based on the determined position.

公开(公告)号：US10911761B2

公开(公告)日：2021-02-02

申请号：US16473328

申请日：2017-12-26

Applicant: MEDIATEK INC.

Inventor： Chun-Chia Chen ,  Chih-Wei Hsu ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/176 ,  H04N19/105 ,  H04N19/139 ,  H04N19/573 ,  H04N19/577

Abstract: Method and apparatus of using Bilateral Template MV Refinement are disclosed to improve coding efficiency or reducing complexity. According to one method, if a size associated with the current block is greater than a threshold, then Bilateral Template MV Refinement is applied to the current block. Otherwise, the Bilateral Template MV Refinement is not applied to the current block. In another method, the Bilateral Template MV Refinement is turned on or off implicitly based on the two reference blocks. According to yet another method, the Bilateral Template MV Refinement is performed on the sub-block level. According to yet another method, the Bilateral Template MV Refinement is performed motion vectors selected from candidates of AMVP (advance MV prediction) candidate list. According to yet another method, the Bilateral Template MV Refinement used a modified template to refine motion vector.

公开(公告)号：US10275868B2

公开(公告)日：2019-04-30

申请号：US15196054

申请日：2016-06-29

Applicant: MEDIATEK INC.

Inventor： Chun-Chia Chen ,  Liang-Che Sun

IPC: G06T7/00 ,  G06K9/62

Abstract: An object analyzing method applied to an object analyzing system. The object analyzing method comprises: (a) applying at least one analyzing parameter extracting process according to an object type for an target object, to extract at least one analyzing parameter for the target object; (b) selecting least one analyzing model according to the object type; and (c) applying the analyzing model selected in the step (b), to analyze the analyzing parameter and accordingly generate an analyzing result.

公开(公告)号：US09906801B2

公开(公告)日：2018-02-27

申请号：US15139345

申请日：2016-04-27

Applicant: MEDIATEK INC.

Inventor： Min-Hao Chiu ,  Chia-Yun Cheng ,  Chun-Chia Chen

IPC: H04N19/176 ,  H04N19/129 ,  H04N19/12 ,  H04N19/124 ,  H04N19/122 ,  H04N19/13

CPC classification number: H04N19/176 ,  H04N19/12 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13

Abstract: An exemplary video decoding apparatus includes a first decoding unit configured for decoding a first encoded block to generate first residual values, a first detecting unit configured for detecting whether all of the first residual values have a same first value, a first processing circuit configured for processing the first residual values to generate first processed residual values, and a second processing circuit configured for generating a decoded block corresponding to the first encoded block. When all of the first residual values have the same first value, the first detecting unit controls the second processing circuit to generate the decoded block without referring to the first processed residual values.

公开(公告)号：US20170054463A1

公开(公告)日：2017-02-23

申请号：US15227977

申请日：2016-08-04

Applicant: MEDIATEK INC.

Inventor： Shuo-Li Shih ,  Chun-Chia Chen ,  Tsu-Ming Liu

IPC: H04B1/3827 ,  H04M1/02

CPC classification number: G06F1/1694 ,  G06F3/0433 ,  G06F3/04883 ,  G06F3/04886 ,  H04M1/72569

Abstract: A portable device is utilized to execute a vibration detecting method. The portable device includes a vibration detecting module and a computing unit. The vibration detecting module is adapted to detect a vibration signal. The computing unit is electrically connected to the vibration detecting module and adapted to analyze the vibration signal to acquire a related vibration parameter, so as to actuate an application program of the portable device accordingly.

Abstract translation: 利用便携式装置来执行振动检测方法。 便携式装置包括振动检测模块和计算单元。 振动检测模块适于检测振动信号。 计算单元电连接到振动检测模块，并适于分析振动信号以获得相关的振动参数，以便相应地致动便携式设备的应用程序。

公开(公告)号：US20250126004A1

公开(公告)日：2025-04-17

申请号：US18903156

申请日：2024-10-01

Applicant: MEDIATEK INC.

Inventor： Chien-Chun Cheng ,  Wei-De Wu ,  Yi-Ju Liao ,  Chun-Chia Chen

IPC: H04L27/26 ,  H04L27/32 ,  H04W52/02

Abstract: In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE. The UE receiving a unified waveform signal from a base station, wherein the unified waveform signal comprises an On-Off Keying (OOK) signal and an Orthogonal Frequency Division Multiplexing (OFDM) signal; determining whether an indicator in the OFDM signal indicates that the unified waveform signal is a low-power wake-up signal (LP-WUS); decoding the LP-WUS when the indicator indicates that the unified waveform signal is the LP-WUS; and terminating a decoding operation when the indicator indicates that the unified waveform signal is not the LP-WUS.

公开(公告)号：US12120293B2

公开(公告)日：2024-10-15

申请号：US17977466

申请日：2022-10-31

Applicant: MediaTek Inc.

Inventor： Cheng-Yen Chuang ,  Man-Shu Chiang ,  Chun-Chia Chen ,  Chih-Wei Hsu ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

CPC classification number: H04N19/105 ,  H04N19/117 ,  H04N19/176 ,  H04N19/423 ,  H04N19/52

Abstract: A video coding system generating candidates for Merge Mode with Motion Vector Difference (MMVD) with reduced resource usage is provided. The system receives data to be encoded or decoded as a current block of a current picture of a video. The system identifies multiple MMVD candidates for different offset positions based on a merge candidate of the current block. The system generates reference samples for the identified MMVD candidates. The system reconstructs the current block or encodes the current block into a bitstream by using the generated reference samples. The system processes the MMVD candidates in separate groups: a first group of vertical MMVD candidates and a second group of horizontal MMVD candidates. The system generates the reference samples for the identified MMVD candidates by applying a vertical filter to source reference samples of horizontal MMVD candidates and then applying a horizontal filter to outputs of the vertical filter.

公开(公告)号：US11856227B2

公开(公告)日：2023-12-26

申请号：US17825269

申请日：2022-05-26

Applicant: MEDIATEK INC.

Inventor： Chih-Hsuan Lo ,  Man-Shu Chiang ,  Chun-Chia Chen ,  Chih-Wei Hsu ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/625 ,  H04N19/124 ,  H04N19/122 ,  H04N19/18 ,  H04N19/176 ,  H04N19/423

CPC classification number: H04N19/625 ,  H04N19/122 ,  H04N19/124 ,  H04N19/176 ,  H04N19/18 ,  H04N19/423

Abstract: Video encoding methods and apparatuses in a video encoding system receive an input residual signal of a current block by a shared transform circuit, apply horizontal transform and vertical transform by a shared transform circuit to generate transform coefficients, apply quantization and inverse quantization to generate recovered transform coefficients, apply inverse vertical transform and inverse horizontal transform to the recovered transform coefficients by the shared transform circuit to generate a reconstructed residual signal for the current block, and encode the current block based on quantized levels of the current block. The shared transform circuit and a coefficient buffer in the folded 4-time transform architecture reuse computation resources in each transform stage. In some embodiments of the folded 4-time transform architecture, a hierarchical design for block size grouping is implemented with fixed throughput for uniform hardware scheduling.

公开(公告)号：US20230199171A1

公开(公告)日：2023-06-22

申请号：US17994400

申请日：2022-11-28

Applicant: MediaTek Inc.

Inventor： Yu-Ling Hsiao ,  Chun-Chia Chen ,  Chih-Wei Hsu ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/172

CPC classification number: H04N19/105 ,  H04N19/137 ,  H04N19/176 ,  H04N19/172

Abstract: Various schemes for managing search memory are described, which are beneficial in achieving enhanced coding gain, low latency, and/or reduced hardware for a video encoder or decoder. In processing a current block of a current picture, an apparatus determines a quantity of a plurality of reference pictures of the current picture. The apparatus subsequently determines, for at least one of the reference pictures, a corresponding search range size based on the quantity. The apparatus then determines, based on the search range size and a location of the current block, a search range of the reference picture, based on which the apparatus encodes or decodes the current block.

公开(公告)号：US20230164358A1

公开(公告)日：2023-05-25

申请号：US17892933

申请日：2022-08-22

Applicant: MediaTek Inc.

Inventor： Chih-Yao Chiu ,  Chun-Chia Chen ,  Chih-Wei Hsu ,  Tzu-Der Chuang ,  Ching-Yeh Chen ,  Yu-Wen Huang

IPC: H04N19/615 ,  H04N19/177 ,  H04N19/182 ,  H04N19/109 ,  H04N19/137 ,  H04N19/176 ,  H04N19/119 ,  H04N19/117 ,  H04N19/105 ,  H04N19/167 ,  H04N19/172

CPC classification number: H04N19/615 ,  H04N19/177 ,  H04N19/182 ,  H04N19/109 ,  H04N19/137 ,  H04N19/176 ,  H04N19/119 ,  H04N19/117 ,  H04N19/105 ,  H04N19/167 ,  H04N19/172

Abstract: Various schemes pertaining to pre-encoding processing of a video stream with motion compensated temporal filtering (MCTF) are described. An apparatus determines a filtering interval for a received raw video stream having pictures in a temporal sequence. The apparatus selects from the pictures a plurality of target pictures based on the filtering interval, as well as a group of reference pictures for each target picture to perform pixel-based MCTF, which generates a corresponding filtered picture for each target picture. The apparatus subsequently transmits the filtered pictures as well as non-target pictures to an encoder for encoding the video stream. Subpictures of natural images and screen content images are separately processed by the apparatus.