公开(公告)号：US20150058579A1

公开(公告)日：2015-02-26

申请号：US14468208

申请日：2014-08-25

Applicant: QUALCOMM Incorporated

Inventor： Lei Xu ,  Bo Zhou ,  Michael Warren Castelloe ,  Shuxue Quan ,  Xinping Zhang ,  Junchen Du ,  Ashwath Harthattu ,  Feng Guo ,  Yingyong Qi

IPC: G06F12/08

CPC classification number: G06F12/0802 ,  G06F2212/60 ,  G06K9/00973

Abstract: A method for memory utilization by an electronic device is described. The method includes transferring a first portion of a first decision tree and a second portion of a second decision tree from a first memory to a cache memory. The first portion and second portion of each decision tree are stored contiguously in the first memory. The first decision tree and second decision tree are each associated with a different feature of an object detection algorithm. The method also includes reducing cache misses by traversing the first portion of the first decision tree and the second portion of the second decision tree in the cache memory based on an order of execution of the object detection algorithm.

Abstract translation: 描述了一种由电子设备进行存储器利用的方法。 该方法包括将第一决策树的第一部分和第二决策树的第二部分从第一存储器传送到高速缓冲存储器。 每个决策树的第一部分和第二部分被连续地存储在第一存储器中。 第一决策树和第二决策树各自与对象检测算法的不同特征相关联。 该方法还包括通过基于对象检测算法的执行顺序遍历高速缓冲存储器中的第一决策树的第一部分和第二决策树的第二部分来减少高速缓存未命中。

公开(公告)号：US09565536B2

公开(公告)日：2017-02-07

申请号：US14182625

申请日：2014-02-18

Applicant: QUALCOMM Incorporated

Inventor： Xinping Zhang

IPC: H04B7/00 ,  H04W4/10 ,  H04W76/00 ,  H04W64/00 ,  H04W4/02 ,  H04W60/04

CPC classification number: H04W4/10 ,  H04W4/02 ,  H04W60/04 ,  H04W64/003 ,  H04W76/45

Abstract: An apparatus and method for transmitting push-to-talk (PTT) communications through multicast channels to a plurality of wireless devices. The PTT server uses the unicast approach to deliver the PTT communication to a group of PTT clients when it does not have the location information of the PTT clients in the group. In one embodiment, the wireless devices report their location to a PTT server after receiving a PTT communication for a group and a timer is started. The wireless devices continue to report their location when moving from an area served by one base station to an area served by another before the timer expires. The PTT server also starts the timer for that PTT group with the same value after initiating the PTT group communication. The PTT server uses the location information to determine if multicast channels can be used when transmitting PTT communications to the wireless devices.

Abstract translation: 一种用于通过多播信道向多个无线设备发送一键通（PTT）通信的装置和方法。 当PTT客户端没有PTT客户端的位置信息时，PTT服务器使用单播方式将PTT通信传送到一组PTT客户端。 在一个实施例中，无线设备在接收到用于组的PTT通信并且启动定时器之后将其位置报告给PTT服务器。 当定时器到期之前，无线设备在从一个基站服务的区域移动到另一个基站所服务的区域时继续报告其位置。 启动PTT组通信后，PTT服务器还启动具有相同值的PTT组的定时器。 当向无线设备发送PTT通信时，PTT服务器使用位置信息来确定是否可以使用多播信道。

公开(公告)号：US20150103909A1

公开(公告)日：2015-04-16

申请号：US14322350

申请日：2014-07-02

Applicant: QUALCOMM Incorporated

Inventor： Umesh Kumar Pandey ,  Xinping Zhang ,  Aditya Bhuvanagiri ,  Kim-Chyan Gan ,  Santhosh Kumar Gunna ,  Adithya Prakash ,  Aravind Korlepara ,  Jayant Ingale ,  Arjun Sitaram ,  Revathy Shunmugam

IPC: H04N19/503 ,  H04N19/119 ,  H04N19/593

CPC classification number: H04N19/119 ,  H04N19/109 ,  H04N19/11 ,  H04N19/147 ,  H04N19/176 ,  H04N19/19 ,  H04N19/436 ,  H04N19/503 ,  H04N19/593

Abstract: The techniques of this disclosure relate to video encoding and include using an inter mode determination for neighboring blocks, rather than the final prediction mode determination for the neighboring block, when determining an inter mode for a current block. In this way, inter mode and intra mode estimation may be separated and performed in different stages of a multi-threaded parallel video encoding implementation. In addition, this disclosure also proposes generating sub-pixel values in a third stage of the multi-threaded parallel video encoding implementation at a frame level, rather than for each macroblock during inter mode estimation process for that macroblock.

Abstract translation: 本公开的技术涉及视频编码，并且包括当确定当前块的帧间模式时，使用相邻块的帧间模式确定而不是相邻块的最终预测模式确定。 以这种方式，可以在多线程并行视频编码实现的不同阶段中分离和执行帧间模式和帧内模式估计。 此外，本公开还提出了在帧级别的多线程并行视频编码实现的第三级中生成子像素值，而不是在针对该宏块的帧间模式估计处理期间为每个宏块生成子像素值。

公开(公告)号：US20140212050A1

公开(公告)日：2014-07-31

申请号：US13935798

申请日：2013-07-05

Applicant: QUALCOMM Incorporated

Inventor： Bo Zhou ,  Zhijie Deng ,  Xinping Zhang ,  Junchen Du ,  Ning Bi ,  Suhail Jalil

IPC: G06K9/46

CPC classification number: G06K9/46 ,  G06T7/12 ,  G06T7/155 ,  G06T2207/20152

Abstract: A method for processing an image is described. Mask bits are determined for a current pixel. The mask bits indicate intensity comparisons between the current pixel and multiple neighboring pixels. The mask bits also indicate whether each of the current pixel's neighboring pixels have been processed. A next pixel is selected for processing based on the mask bits.

Abstract translation: 描述用于处理图像的方法。 为当前像素确定掩码位。 掩码位表示当前像素和多个相邻像素之间的强度比较。 掩码位还指示当前像素的每个相邻像素是否已被处理。 基于掩码位选择下一个像素进行处理。

公开(公告)号：US09286217B2

公开(公告)日：2016-03-15

申请号：US14468208

申请日：2014-08-25

Applicant: QUALCOMM Incorporated

Inventor： Lei Xu ,  Bo Zhou ,  Michael Warren Castelloe ,  Shuxue Quan ,  Xinping Zhang ,  Junchen Du ,  Ashwath Harthattu ,  Feng Guo ,  Yingyong Qi

IPC: G06F12/08 ,  G06K9/00

CPC classification number: G06F12/0802 ,  G06F2212/60 ,  G06K9/00973

Abstract: A method for memory utilization by an electronic device is described. The method includes transferring a first portion of a first decision tree and a second portion of a second decision tree from a first memory to a cache memory. The first portion and second portion of each decision tree are stored contiguously in the first memory. The first decision tree and second decision tree are each associated with a different feature of an object detection algorithm. The method also includes reducing cache misses by traversing the first portion of the first decision tree and the second portion of the second decision tree in the cache memory based on an order of execution of the object detection algorithm.

Abstract translation: 描述了一种由电子设备进行存储器利用的方法。 该方法包括将第一决策树的第一部分和第二决策树的第二部分从第一存储器传送到高速缓冲存储器。 每个决策树的第一部分和第二部分被连续地存储在第一存储器中。 第一决策树和第二决策树各自与对象检测算法的不同特征相关联。 该方法还包括通过基于对象检测算法的执行顺序遍历高速缓冲存储器中的第一决策树的第一部分和第二决策树的第二部分来减少高速缓存未命中。