Mstar Semiconductor, Inc.

Mediatek Corporation

Yi-Shin Tung

He-Yuan Lin

Yi-Chin Huang

Chia-Chiang Ho

Yu-Cheng Lin

Sung-Wen Wang

Chia Chiang Ho

Ling-Hsuan Huang

Jia-Wei Lin

Tzu-Jung Huang

Hung-Wei Yang

Tse-Tsung Shih

Ya-Ting Yang

A multi-core processing device includes a first processor core and a second processor core. The computation capability of the second processor core is greater than that of the first processor core. When loading of a task is lower than an hmp_down_migration threshold, the multi-core processing device allocates the task to the first processor core. When the loading of a task is higher than an hmp_up_migration threshold, the multi-core processing device allocates the task to the second processor core. At least one of the hmp_down_threshold and the hmp_up_threshold changes from a first value to a second value during a run time of the multi-core processing device.

Device and method for dynamically adjusting task loading of multi-core processor

A method for compressing image data is provided. The image data includes a file to be compressed, which includes N blocks to be compressed. The method includes: setting a target data increment of each of the N blocks of the file according to a 0accumulated target data size and an Naccumulated target data size; before compressing an nblock, calculating an (n&#x2212;1)accumulated target data size of an (n&#x2212;1)block according to the 0accumulated target data size and the target data increment; when a difference between an (n&#x2212;1)accumulated compressed data size and the (n&#x2212;1)accumulated target data size is smaller than a predetermined threshold, removing X least significant bit(s) of a plurality of sets of data in the nblock to generate an updated nblock; and compressing the updated nblock to generate a compressed nblock.

Method for compressing image data and image data compressing system

A stream decoding method is provided. The stream includes a plurality of frames. The method includes: obtaining a display order of a current frame that belongs to a group by parsing a header of the current frame; and determining whether to decode the current frame or to drop instead of decoding the current frame according to the display order of the current frame.

Bitstream decoding method and bitstream decoding circuit

An image processing system includes an image processing module, a frame buffer encoding module and a frame buffer. Each image block includes multiple first-type coding blocks and at least one second-type coding block. The image processing module generates a first image processed result according to multiple first-type coding blocks of a target image block. The frame buffer encoding module generates a first frame buffer encoded result according to the first image processed result. The frame buffer, for the target image block, provides a buffer region including at least one first random access point and a second buffer region including at least one second random access point. The first frame buffer encoded result is stored to the first buffer region. At least one second-type coding block of the target image block is stored to the second buffer region.

Image processing system and image processing method

An encoding apparatus includes an intra-prediction module, a transform module and a control module. The intra-prediction module performs intra-prediction on an image block in a video frame according to a plurality of sets of reference image data to generate a residual block. The reference image data includes a set of reference image data corresponding to a predetermined side of the image block. The transform module performs preliminary transform on the residual block to generate a preliminary transform coefficient matrix. According to whether at least one of the reference image data corresponding to the predetermined side is generated according to image data of an adjacent pixel of the image block, the control module determines whether secondary transform perpendicular to the predetermined side is to be performed on a low-frequency component sub-matrix in the preliminary transform coefficient matrix.

Encoding method and apparatus and decoding method and apparatus for video system that selectively performs secondary transform

A control module of a multimedia device for generating display data required by a display module is provided. The control module includes: a signal receiving and analyzing unit, configured to receive a first signal to accordingly generate a pre-boot command, and to receive a second signal to accordingly generate a boot command; and a processor, configured to perform a pre-boot process according to the pre-boot signal to generate the image data, to enter a waiting mode when the pre-boot process is complete, and to exit the waiting mode according to the boot command. The image data is not used to display an image by the display module when the processor remains in the waiting mode.

Control module of multimedia device and method for controlling multimedia device to generate image data required by display module

A method for controlling an electronic device is provided. The method includes detecting a first tilt angle between the electronic device and a reference plane, and controlling the electronic device to perform an operating according to the first tilt angle. The operation is associated with a user interface operation or an audio/video playback operation.

Electronic device and method for controlling the same

A decoding method for an audio video coding standard (AVS) system is provided. According to a stop-fetching criterion, a stop-fetching flag is set to an enabled status or a disabled status. In an offset fetching procedure, it is determined whether an offset value is smaller than a threshold and whether the stop-fetching is in the disabled status. When a determination result is affirmative, one subsequent bit is fetched for the offset value, an offset shift value is correspondingly increased, and the determination step is iterated. When the determination result is negative, the offset fetching procedure is terminated. Next, it is determined whether a decoding result is a least probable symbol (LPS) or a most probable symbol (MPS).

Method and apparatus for decoding for AVS system using fetching flag

An apparatus for managing a memory including a working region and a compression region is provided. The working region stores uncompressed data. The apparatus includes a management module and a compression/decompression module. According to a recent used index and a compression ratio of a set of target data stored in the working region, the management module determines whether to transfer the target data to the compression region. When the management module determines to transfer the target data to the compression region, the compression/decompression module compresses the target data and transfers the compressed target data to the compression region.

Method and apparatus for managing memory

A quantized coefficient coding apparatus used in a media coding system includes a determination module, a coding mode arbitration module and a coding module. The determination module determines whether a set of quantized coefficients are defined in a predetermined variable length coding (VLC) table to generate a determination result. When the determination result of the determination module is negative, the coding mode arbitration module determines a best coding mode corresponding to the set of quantized coefficients from a plurality of predetermined coding modes. The coding mode encodes the set of quantized coefficients according to the best coding mode.

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Zhubei, Taiwan

Yi-Shin Tung