公开(公告)号：US20230342118A1

公开(公告)日：2023-10-26

申请号：US18178098

申请日：2023-03-03

Applicant: MediaTek Inc.

Inventor： Yu-Chieh Lin ,  Hungchun Liu ,  Po-Yuan Jeng ,  Yungchih Chiu ,  Cheng-Hsun Hsieh ,  Chia-Yu Chang ,  Li-Ming Chen

IPC: G06F8/36 ,  G06F8/41

CPC classification number: G06F8/36 ,  G06F8/433

Abstract: A graph application programming interface (API) is used to control an image processing flow. A system receives graph API calls to add nodes to respective subgraphs. The system further receives a given graph API call to add a control flow node to a main graph. The given graph API call identifies the subgraphs as parameters. The main graph includes the control flow node connected to other nodes by edges that are directed and acyclic. A graph compiler compiles the main graph and the subgraphs into corresponding executable code. At runtime, a condition is evaluated before the subgraphs identified in the given graph API call are executed. One or more target devices execute the corresponding executable code to perform operations of an image processing pipeline while skipping execution of one or more of the subgraphs depending on the condition.

公开(公告)号：US09172413B2

公开(公告)日：2015-10-27

申请号：US13762387

申请日：2013-02-08

Applicant: MEDIATEK INC.

Inventor： Wei-Jen Chen ,  Chia-Yu Chang ,  Po-Ying Chen

IPC: H04B1/10

CPC classification number: H04B1/1081 ,  H04J11/0063 ,  H04L25/0224 ,  H04L25/03171 ,  H04L25/03178 ,  H04L25/03292 ,  H04L25/03318

Abstract: A method for performing wireless communications and an associated apparatus are provided, where the method is applied to an electronic device. The method includes the steps of: receiving at least one data stream, wherein each data stream from the at least one data stream is transmitted from a wireless channel; in a first iteration, utilizing a Maximum Likelihood (ML) estimator to perform demapping processing on at least one portion of the at least one data stream to obtain Log-Likelihood Ratios (LLRs) of the first iteration and performing Turbo decoding according to the LLRs of the first iteration to generate resultant LLRs of the first Iteration; and in at least one following iteration, utilizing a Max A Posterior (MAP) estimator to perform demapping processing on at least one portion of the at least one data stream and performing Turbo decoding, successively, in order to cancel interference due to the wireless channel.

Abstract translation: 提供了一种用于执行无线通信的方法和相关联的设备，其中该方法被应用于电子设备。 该方法包括以下步骤：接收至少一个数据流，其中从无线信道发送来自所述至少一个数据流的每个数据流; 在第一迭代中，利用最大似然（ML）估计器对至少一个数据流的至少一部分执行解映射处理，以获得第一迭代的对数似然比（LLR），并根据LLR进行Turbo解码 的第一次迭代以产生第一迭代的合成LLR; 并且在至少一个后续迭代中，利用最大后验（MAP）估计器对所述至少一个数据流的至少一部分执行解映射处理并且连续执行Turbo解码，以便消除由于所述无线信道造成的干扰 。

公开(公告)号：US20230342876A1

公开(公告)日：2023-10-26

申请号：US18178059

申请日：2023-03-03

Applicant: MediaTek Inc.

Inventor： Yu-Chieh Lin ,  Hungchun Liu ,  Po-Yuan Jeng ,  Yungchih Chiu ,  Chia-Yu Chang ,  Cheng-Hsun Hsieh ,  Lei Chen ,  Li-Ming Chen ,  Taichi Wang

IPC: G06T11/20 ,  G06T1/20

CPC classification number: G06T1/20 ,  G06T11/206

Abstract: An image processing system includes one or more processors operative to receive a graph application programming interface (API) call to add a complex node to a graph. The graph includes at least the complex node connected to other nodes by edges that are directed and acyclic. The one or more processors are further operative to process, by a graph compiler at compile time, the complex node by iteratively expanding the complex node into multiple nodes with each node corresponding to one operation in an image processing pipeline. The system further includes one or more target devices to execute executable code compiled from each node to perform operations of the image processing pipeline. The system further includes memory to store the graph compiler and the executable code.

公开(公告)号：US20140226764A1

公开(公告)日：2014-08-14

申请号：US13762387

申请日：2013-02-08

Applicant: MEDIATEK INC.

Inventor： Wei-Jen Chen ,  Chia-Yu Chang ,  Po-Ying Chen

IPC: H04B1/10

CPC classification number: H04B1/1081 ,  H04J11/0063 ,  H04L25/0224 ,  H04L25/03171 ,  H04L25/03178 ,  H04L25/03292 ,  H04L25/03318

Abstract: A method for performing wireless communications and an associated apparatus are provided, where the method is applied to an electronic device. The method includes the steps of: receiving at least one data stream, wherein each data stream from the at least one data stream is transmitted from a wireless channel; in a first iteration, utilizing a Maximum Likelihood (ML) estimator to perform demapping processing on at least one portion of the at least one data stream to obtain Log-Likelihood Ratios (LLRs) of the first iteration and performing Turbo decoding according to the LLRs of the first iteration to generate resultant LLRs of the first Iteration; and in at least one following iteration, utilizing a Max A Posterior (MAP) estimator to perform demapping processing on at least one portion of the at least one data stream and performing Turbo decoding, successively, in order to cancel interference due to the wireless channel.

Abstract translation: 提供了一种用于执行无线通信的方法和相关联的设备，其中该方法被应用于电子设备。 该方法包括以下步骤：接收至少一个数据流，其中从无线信道发送来自所述至少一个数据流的每个数据流; 在第一迭代中，利用最大似然（ML）估计器对至少一个数据流的至少一部分执行解映射处理，以获得第一迭代的对数似然比（LLR），并根据LLR进行Turbo解码 的第一次迭代以产生第一迭代的合成LLR; 并且在至少一个后续迭代中，利用最大后验（MAP）估计器对所述至少一个数据流的至少一部分执行解映射处理并且连续执行Turbo解码，以便消除由于所述无线信道造成的干扰 。