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1. 发明授权

US11995147B2 Unified forward and inverse transform architecture 有权
公开(公告)号：US11995147B2
公开(公告)日：2024-05-28
申请号：US17460802
申请日：2021-08-30
申请人： Texas Instruments Incorporated
发明人： Madhukar Budagavi
IPC分类号： G06F17/14 , H04N19/60 , H04N19/61
CPC分类号： G06F17/147 , H04N19/60 , H04N19/61
摘要： Multiple transform sizes improve video coding efficiency, but also increase the implementation complexity. Furthermore, both forward and inverse transforms need to be supported in various consumer devices. Embodiments provide a unified forward and inverse transform architecture that supports computation of both forward and inverse transforms for multiple transforms sizes using shared hardware circuits. The unified architecture exploits the symmetry properties of forward and inverse transform matrices to achieve hardware sharing across different the transform sizes and also between forward and inverse transform computations.

2. 发明公开

US20240160778A1 METHOD AND SYSTEM FOR INCREASING PRIVACY OF USER DATA WITHIN A DATASET AND COMPUTER PROGRAM PRODUCT 审中-公开
公开(公告)号：US20240160778A1
公开(公告)日：2024-05-16
申请号：US18278874
申请日：2022-02-23
申请人： TECHNISCHE UNIVERSITÄT BERLIN
发明人： Onur GÜNLÜ , Rafael F. SCHAEFER
IPC分类号： G06F21/62 , G06F17/14
CPC分类号： G06F21/6245 , G06F17/147
摘要： A method for increasing privacy of user data of a plurality of users within a dataset is disclosed. The method comprises, in one or more data processing devices, providing (10) a dataset comprising a plurality of data points of a plurality of users and comprising inter-user correlations within the plurality of data points; determining (12) a plurality of transform coefficients by applying a transform on the plurality of data points; determining (14) a plurality of private transform coefficients from the plurality of transform coefficients by applying an (ε, δ)- differential privacy mechanism to each non-zero transform coefficient of the plurality of transform coefficients; and determining (15) a private dataset comprising a plurality of private data points from the plurality of private transform coefficients by applying, on the plurality of private transform coefficients, an inverse transform of the transform; wherein the (ε, δ)- differential privacy mechanism is adapted such that the plurality of private data points is (ε, δ)-differential private. Further, a system for increasing privacy of user data of a plurality of users within a dataset and a computer program product are provided.

3. 发明授权

US11928177B2 Methods and apparatus for performing video processing matrix operations within a memory array 有权
公开(公告)号：US11928177B2
公开(公告)日：2024-03-12
申请号：US17948126
申请日：2022-09-19
申请人： Micron Technology, Inc.
发明人： Fa-Long Luo
IPC分类号： G06F17/16 , G06F1/03 , G06F12/02 , G06F17/14 , G11C11/4094
CPC分类号： G06F17/16 , G06F1/03 , G06F12/0207 , G06F17/147 , G11C11/4094
摘要： Methods and apparatus for performing video processing matrix operations within a memory fabric. Various embodiments of the present disclosure are directed to converting a memory array into a matrix fabric for discrete cosine transform (DCT) matrix transformations and performing DCT matrix operations therein. Exemplary embodiments described herein perform DCT matrix-matrix multiplication operations within a memory device that includes a matrix fabric and matrix multiplication unit (MMU). In one embodiment, matrix-matrix multiplication operations are obtained using separate matrix-vector products. In one exemplary embodiment, the matrix fabric uses a “crossbar” construction of resistive elements. Each resistive element stores a level of impedance that represents the corresponding matrix coefficient value. The crossbar connectivity can be driven with an electrical signal representing the input vector as an analog voltage. The resulting signals can be converted from analog voltages to a digital values by an MMU to yield a vector-matrix product. In some cases, the MMU may additionally perform various other logical operations within the digital domain.

4. 再颁专利

USRE48210E1 Coding techniques using estimated spectral magnitude and phase derived from MDCT coefficients 有权
公开(公告)号：USRE48210E1
公开(公告)日：2020-09-15
申请号：US15877345
申请日：2018-01-22
申请人： Dolby Laboratories Licensing Corporation
发明人： Corey I. Cheng , Michael J. Smithers
IPC分类号： G10L21/00 , G10L19/02 , G06F17/14
CPC分类号： G10L19/0212 , G06F17/147
摘要： Estimates of spectral magnitude and phase are obtained by an estimation process using spectral information from analysis filter banks such as the Modified Discrete Cosine Transform. The estimation process may be implemented by convolution-like operations with impulse responses. Portions of the impulse responses may be selected for use in the convolution-like operations to trade off between computational complexity and estimation accuracy. Mathematical derivations of analytical expressions for filter structures and impulse responses are disclosed.

5. 发明申请

US20190102610A1 Method and Apparatus for Acquiring Information 审中-公开
公开(公告)号：US20190102610A1
公开(公告)日：2019-04-04
申请号：US16050947
申请日：2018-07-31
申请人： BAIDU ONLINE NETWORK TECHNOLOGY (BEIJING) CO., LTD.
发明人： Gang Zhang , Jin Lu
IPC分类号： G06K9/00 , G06F17/14 , G06F17/16
CPC分类号： G06K9/00295 , G06F17/147 , G06F17/16 , G06K9/00268
摘要： The present disclosure discloses a method and apparatus for acquiring information. The method comprises: acquiring images of a plurality of unregistered users, the unregistered users being users having no registered images belonging to the unregistered users in a face recognition system; calculating a maximum similarity corresponding to an image of each unregistered user, the maximum similarity being a maximum similarity among similarities between a face object in the image of the unregistered user and face objects in a plurality of registered images; and determining a similarity threshold corresponding to a preset condition based on the calculated maximum similarity corresponding to the image of the each unregistered user, the preset condition comprising a ratio of a number of images of the unregistered users with corresponding maximum similarities greater than the similarity threshold to a number of the images of the unregistered users being smaller than a ratio threshold.

6. 发明授权

US09996503B2 Signal processing method and device 有权
公开(公告)号：US09996503B2
公开(公告)日：2018-06-12
申请号：US15696091
申请日：2017-09-05
申请人： Huawei Technologies Co., Ltd.
发明人： Deming Zhang , Haiting Li , Anisse Taleb , Jianfeng Xu
IPC分类号： G06F17/14 , G10L19/022 , G10L19/02
CPC分类号： G06F17/142 , G06F17/141 , G06F17/147 , G10L19/0212 , G10L19/022
摘要： A method for processing an audio signal, including: sound is converted to an analog audio input signal and converted into a digital audio signal; a windowed time domain signal is obtained and then a twiddled signal is obtained; the twiddled signal is pre-rotated and then an FFT is performed; an in-place fixed rotate compensation is performed on the FFT signal and then an post-rotated is performed; a quantized signal is obtained and then wrote into a bitstream for transmitting or storing.

7. 发明授权

US09612791B2 Method, system and storage medium for monitoring audio streaming media 有权
公开(公告)号：US09612791B2
公开(公告)日：2017-04-04
申请号：US14720591
申请日：2015-05-22
申请人： Tencent Technology (Shenzhen) Company Limited
发明人： Lifu Yi , Yun Zhang , Shenyuan Li , Jianfeng Chen , Bin Ma
IPC分类号： G06F3/16 , G06F17/30 , G06F17/14 , H04L29/06
CPC分类号： G06F3/165 , G06F17/147 , G06F17/30743 , H04L65/4084 , H04L65/60 , H04L65/605 , H04L65/607
摘要： The present disclosure provides method and a computer system for tracking audio streaming media. The method includes: after streaming media information matching a currently played audio stream segment is identified, determining whether the streaming media information matches a next audio stream segment, and when the streaming media information matches the next audio stream segment, directly returning a result; or when the streaming media information does not match the next audio stream segment, performing streaming media information matching again for the next audio stream segment, which occupies less memory, improves a calculation speed, and reduces calculation complexity of matching the streaming media information.

8. 发明申请

US20160283440A1 Systems and Methods for Generating Updates of Geological Models 有权
公开(公告)号：US20160283440A1
公开(公告)日：2016-09-29
申请号：US15086626
申请日：2016-03-31
申请人： Landmark Graphics Corporation
发明人： Marko Maucec
IPC分类号： G06F17/14 , G01V99/00
CPC分类号： G06F17/147 , G01V99/005
摘要： Systems and methods for generating updates of large scale 3D geological models with multi-model facies, permeability or porosity distribution.

9. 发明授权

US09170815B2 Bitstream buffer manipulation with a SIMD merge instruction 有权
公开(公告)号：US09170815B2
公开(公告)日：2015-10-27
申请号：US13752916
申请日：2013-01-29
申请人： Intel Corporation
发明人： Yen-Kuang Chen , William W. Macy, Jr. , Matthew Holliman , Eric L. Debes , Minerva M. Yeung , Huy V. Nguyen , Julien Sebot
IPC分类号： G06F5/01 , G06F9/30 , G06F9/38 , G06F17/14 , G06F17/15 , G06F15/80
CPC分类号： G06F9/30145 , G06F9/3001 , G06F9/30014 , G06F9/30018 , G06F9/30025 , G06F9/30032 , G06F9/30036 , G06F9/30109 , G06F9/30112 , G06F9/3013 , G06F9/3816 , G06F9/3885 , G06F15/8007 , G06F17/147 , G06F17/15
摘要： Method, apparatus, and program means for performing bitstream buffer manipulation with a SIMD merge instruction. The method of one embodiment comprises determining whether any unprocessed data bits for a partial variable length symbol exist in a first data block is made. A shift merge operation is performed to merge the unprocessed data bits from the first data block with a second data block. A merged data block is formed. A merged variable length symbol comprised of the unprocessed data bits and a plurality of data bits from the second data block is extracted from the merged data block.

10. 发明申请

US20150256855A1 4X4 TRANSFORM FOR MEDIA CODING 审中-公开
标题翻译： 4X4用于媒体编码的变换
公开(公告)号：US20150256855A1
公开(公告)日：2015-09-10
申请号：US14717678
申请日：2015-05-20
申请人： QUALCOMM Incorporated
发明人： Yuriy Reznik
IPC分类号： H04N19/625 , H04N19/51 , H04N19/91 , H04N19/124
CPC分类号： H04N19/625 , G06F17/147 , H04N19/124 , H04N19/42 , H04N19/45 , H04N19/51 , H04N19/61 , H04N19/91
摘要： In general, techniques are described that provide for 4×4 transforms for media coding. A number of different 4×4 transforms are described that adhere to these techniques. As one example, an apparatus includes a 4×4 discrete cosine transform (DCT) hardware unit. The DCT hardware unit implements an orthogonal 4×4 DCT having an odd portion that applies first and second internal factors (C, S) that are related to a scaled factor (ξ) such that the scaled factor equals a square root of a sum of a square of the first internal factor (C) plus a square of the second internal factor (S). The 4x4 DCT hardware unit applies the 4x4 DCT implementation to media data to transform the media data from a spatial domain to a frequency domain. As another example, an apparatus implements a non-orthogonal 4×4 DCT to improve coding gain.
摘要翻译：通常，描述了为媒体编码提供4×4变换的技术。描述了许多遵循这些技术的不同的4×4变换。作为一个示例，装置包括4×4离散余弦变换（DCT）硬件单元。 DCT硬件单元实现具有奇数部分的正交4×4 DCT，该奇数部分应用与缩放因子（＆amp; xgr）相关的第一和第二内部因子（C，S），使得缩放因子等于总和的平方根的第一内部因子（C）的平方加上第二内部因子（S）的平方。 4x4 DCT硬件单元将4x4 DCT实现应用于媒体数据，以将媒体数据从空间域转换为频域。作为另一示例，设备实现非正交4×4 DCT以提高编码增益。

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