公开(公告)号：US08553657B2

公开(公告)日：2013-10-08

申请号：US10598647

申请日：2005-03-04

Applicant: Javier Del Prado Pavon ,  Sai Shankar Nandagopalan ,  Kiran Challapali ,  Joerg Habetha

Inventor： Javier Del Prado Pavon ,  Sai Shankar Nandagopalan ,  Kiran Challapali ,  Joerg Habetha

IPC: H04W4/00

CPC classification number: H04W74/06 ,  H04W28/18 ,  H04W28/26 ,  H04W48/10 ,  H04W48/18 ,  H04W72/04 ,  H04W84/18

Abstract: A system and method is provided for incorporating host-device communication in wireless IJSB (WUSB). A host (101) either uses a multicast Distributed Reservation Protocol (DRP) frame on behalf of connected devices (102) to reserve wireless channel resources, a unicast DRP frame or Enhanced Distributed Channel Access (EDCA) with a Poll Frame. In the case of a unicast DRP frame the number of unicast frames sent for reservation depends on the number of connected devices (102).

Abstract translation: 提供了一种在无线IJSB（WUSB）中并入主机设备通信的系统和方法。 主机（101）代表连接的设备（102）使用组播分布式预留协议（DRP）帧来保留无线信道资源，单播DRP帧或具有轮询帧的增强型分布式信道访问（EDCA）。 在单播DRP帧的情况下，发送用于预约的单播帧的数量取决于连接的设备的数量（102）。

公开(公告)号：US20100157066A1

公开(公告)日：2010-06-24

申请号：US12160445

申请日：2007-01-16

Applicant: Kiran Challapali ,  Bin Dong ,  Dagnachew Birru

Inventor： Kiran Challapali ,  Bin Dong ,  Dagnachew Birru

IPC: H04N17/00

CPC classification number: H04N5/08 ,  H04N5/21 ,  H04N5/4401 ,  H04N5/46 ,  H04N21/42607

Abstract: A method for detecting the presence of a television signal embedded in a received signal including the television signal and noise is disclosed. Either first-order or second order cyclostationary property of the signals may be used for their detection. When the first-order cyclostationary property is used, the following method is used, the method comprising the steps of upsampling the received signal by a factor of N, performing a synchronous averaging of a set of M segments of the upsampled received signal, performing an autocorrelation of the signal; and detecting the presence of peaks in the output of the autocorrelation function. When the second order cyclostationary property of the signal is used, the method comprising the steps of delaying the received signal by a fixed delay (symbol time), multiplying the received signal with the delayed version, looking for a tone (single frequency) in the output.

Abstract translation: 公开了一种用于检测嵌入在包括电视信号和噪声的接收信号中的电视信号的存在的方法。 信号的一阶或二阶循环平稳性可以用于它们的检测。 当使用一阶循环平稳性时，使用以下方法，该方法包括以下步骤：对接收到的信号进行上采样乘以N，对上采样的接收信号的一组M段执行同步平均， 信号的自相关; 并检测在自相关函数的输出中存在峰值。 当使用信号的二阶循环平稳性时，该方法包括以下步骤：将接收到的信号延迟固定延迟（符号时间），将接收到的信号与延迟版本相乘，在接收到的信号中寻找音调（单频） 输出。

公开(公告)号：US20080253347A1

公开(公告)日：2008-10-16

申请号：US12066853

申请日：2006-09-14

Applicant: Carlos Cordeiro ,  Kiran Challapali

Inventor： Carlos Cordeiro ,  Kiran Challapali

IPC: H04J1/00 ,  H04J3/16

CPC classification number: H04W16/14 ,  H04W48/08 ,  H04W72/10 ,  H04W72/12 ,  H04W76/30 ,  H04W80/02 ,  H04W92/10

Abstract: A wireless system and method including a medium access control (MAC) layer adapted to notify a wireless station of the presence or absence of an incumbent wireless are described.

Abstract translation: 描述了包括适于通知无线站的介质访问控制（MAC）层的无线系统和方法，即存在或不存在现有无线的无线系统和方法。

公开(公告)号：US06298090B1

公开(公告)日：2001-10-02

申请号：US09090594

申请日：1998-06-04

Applicant: Kiran Challapali ,  Yingwei Chen

Inventor： Kiran Challapali ,  Yingwei Chen

IPC: H04N718

CPC classification number: H04N19/587 ,  H04N19/132

Abstract: A system for detecting redundant images in a video sequence includes dividing a target image in the video sequence into a plurality of regions, and determining, for each of the plurality of regions, a local value comprising a sum of differences between individual pixels of each region and corresponding pixels in at least one other image in the video sequence. The local value for each of the plurality of regions is then compared to a first predetermined threshold. The system also includes determining a global value comprising a sum of differences between substantially all pixels in the target image and corresponding pixels in the at least one other image, and comparing the global value to a second predetermined threshold. An indication that the target image is redundant is then output in a case that the local value does not exceed the first predetermined threshold for all regions, and the global value does not exceed the second predetermined threshold.

Abstract translation: 一种用于检测视频序列中的冗余图像的系统，包括将视频序列中的目标图像划分为多个区域，并且针对多个区域中的每一个确定包括每个区域的各个像素之间的差异之和的局部值 以及视频序列中的至少一个其他图像中的对应像素。 然后将多个区域中的每一个的局部值与第一预定阈值进行比较。 该系统还包括确定包括目标图像中的基本上所有像素与至少一个其它图像中的相应像素之间的差的总和，并将全局值与第二预定阈值进行比较的全局值。 然后在本地值不超过所有区域的第一预定阈值并且全局值不超过第二预定阈值的情况下输出目标图像是冗余的指示。

公开(公告)号：US08233444B2

公开(公告)日：2012-07-31

申请号：US12066878

申请日：2006-09-14

Applicant: Carlos Cordeiro ,  Kiran Challapali

Inventor： Carlos Cordeiro ,  Kiran Challapali

IPC: H04W4/00 ,  H04J3/14

CPC classification number: H04W72/042 ,  H04W16/14 ,  H04W36/06 ,  H04W48/12 ,  H04W72/1215

Abstract: A wireless system and method including a medium access control (MAC) layer adapted to transmit and receive spectrum management commands for wireless devices operating in restricted channels.

Abstract translation: 一种包括媒体接入控制（MAC）层的无线系统和方法，适于发送和接收在限制信道中操作的无线设备的频谱管理命令。

公开(公告)号：US07995583B2

公开(公告)日：2011-08-09

申请号：US10314623

申请日：2002-12-09

Applicant: Javier Del Prado Pavon ,  Amjad Soomro ,  Kiran Challapali ,  Saishankar Nandagopalan

Inventor： Javier Del Prado Pavon ,  Amjad Soomro ,  Kiran Challapali ,  Saishankar Nandagopalan

IPC: H04L12/28

CPC classification number: H04W72/1278 ,  H04W52/0216 ,  H04W72/1236 ,  Y02D70/142 ,  Y02D70/168 ,  Y02D70/23

Abstract: An apparatus and method is disclosed for announcing to a wireless station in a wireless network that a Quality of Service (QoS) service schedule is pending for the wireless station. The apparatus of the invention comprises a hybrid coordinator that is capable of creating and sending to the wireless station an announcement of a pending Quality of Service (QoS) service schedule. The wireless station delays entering a power save mode of operation until the wireless station receives the QoS service schedule or until a selected timeout period expires.

Abstract translation: 公开了一种用于向无线网络中的无线站通知服务质量（QoS）服务调度正在等待无线站的装置和方法。 本发明的装置包括混合协调器，该混合协调器能够创建并向无线站发送未决服务质量（QoS）服务调度的通知。 无线站延迟进入省电模式，直到无线站接收到QoS服务调度，或者直到选定的超时时间段到期。

公开(公告)号：US20080259811A1

公开(公告)日：2008-10-23

申请号：US12066851

申请日：2006-09-14

Applicant: Carlos Cordeiro ,  Kiran Challapali

Inventor： Carlos Cordeiro ,  Kiran Challapali

IPC: H04L12/26

CPC classification number: H04W24/10 ,  H04W36/30 ,  H04W74/00 ,  H04W80/00

Abstract: A wireless system (100) and method (401-403) includes a medium access control (MAC) layer adapted to request and receive measurement reports from wireless devices (102) operating in restricted channels.

Abstract translation: 无线系统（100）和方法（401-403）包括适于从在受限通道中操作的无线设备（102）请求和接收测量报告的介质访问控制（MAC）层。

公开(公告)号：US20080037476A1

公开(公告)日：2008-02-14

申请号：US11570447

申请日：2005-06-10

Applicant: Javier Del Prado Pavon ,  Kiran Challapali ,  Zhun Zhong

Inventor： Javier Del Prado Pavon ,  Kiran Challapali ,  Zhun Zhong

IPC: H04B7/212

CPC classification number: H04W16/14 ,  H04W28/16 ,  H04W36/16

Abstract: Wireless networks and their method of implementation include a first network and one or more networks. The first network assigns designated time slots to each of the one or more networks during which at least one device of at least one of the networks may communicate with at least one other device of its respective network.

Abstract translation: 无线网络及其实现方法包括第一网络和一个或多个网络。 第一网络将指定的时隙分配给一个或多个网络中的每个网络，在该网络期间，至少一个网络的至少一个设备可以与其相应网络的至少一个其他设备进行通信。

公开(公告)号：US6084982A

公开(公告)日：2000-07-04

申请号：US992291

申请日：1997-12-17

Applicant: Kiran Challapali ,  Yingwei Chen

Inventor： Kiran Challapali ,  Yingwei Chen

IPC: H04N9/75 ,  H04N7/26 ,  H04N11/04

CPC classification number: H04N9/75 ,  H04N19/124 ,  H04N19/14 ,  H04N19/152 ,  H04N19/176 ,  H04N19/186 ,  H04N19/20

Abstract: A method of performing chroma-key coding including the steps of defining color regions and quantifying the number of pixels in the regions, classifying macroblocks in accordance with the number of pixels thus quantified, assigning chroma complexity weights for use in the computation of quantization step-size based on the classification of the macroblocks, computing the quantization step-size, performing quantization and performing variable length coding.

Abstract translation: 一种执行色键编码的方法，包括定义颜色区域和量化该区域中的像素数量的步骤，根据如此量化的像素数量对宏块进行分类，分配用于计算量化步长的色度复杂度权重， 基于宏块的分类，计算量化步长，执行量化和执行可变长度编码。

公开(公告)号：US5532744A

公开(公告)日：1996-07-02

申请号：US294124

申请日：1994-08-22

Applicant: Olu Akiwumi-Assani ,  Carlo Basile ,  Alan Cavallerano ,  Kiran Challapali ,  Richard Shen ,  Karl Wittig

Inventor： Olu Akiwumi-Assani ,  Carlo Basile ,  Alan Cavallerano ,  Kiran Challapali ,  Richard Shen ,  Karl Wittig

IPC: H04N7/26 ,  H04N7/50

CPC classification number: H04N19/436 ,  H04N19/61 ,  H04N19/30

Abstract: A method and decoder for decoding a hierarchically coded digital video bitstream which can process a high resolution television picture in real time and which is made, up of a number of individual decoder modules, connected in parallel, which each have less real time processing power than is necessary, but which when combined, have at least the necessary processing power needed to process the bitstream in real time. The decoder includes a system controller which detects the hierarchical code indicating bits and slices and communicates this information to a slice parser which dynamically allocates the bitstream among the digital modules as needed on a per slice basis.

Abstract translation: 一种分层编码的数字视频比特流的解码方法和解码器，其可以实时处理高分辨率电视图像，并且由并行连接的多个单独的解码器模块构成，每个解码器模块的实时处理能力都比 是必要的，但是当组合时，至少具有实时处理比特流所需的必要处理能力。 解码器包括系统控制器，其检测指示比特和片段的分层代码，并将该信息传送到片分析器，根据需要在每个片基的基础上动态地分配数字模块中的比特流。