公开(公告)号：US20070160049A1

公开(公告)日：2007-07-12

申请号：US11618947

申请日：2007-01-02

Applicant: Qiaobing Xie ,  Yogesh B. Bhatt ,  Ajoy K. Singh

Inventor： Qiaobing Xie ,  Yogesh B. Bhatt ,  Ajoy K. Singh

IPC: H04L12/56

CPC classification number: H04W36/0033 ,  H04L63/0272 ,  H04L63/08 ,  H04L63/0892 ,  H04W12/04031 ,  H04W12/06 ,  H04W28/18 ,  H04W36/14 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W80/04

Abstract: A communication system provides for an expedited Mobile Internet Protocol handoff by allowing a mobile station that is engaged in a communication session with a first access network to obtain Internet Protocol connectivity information associated with a second access network via the first access network. A tunnel is then established between the mobile station and the second access network via the first access network based on the Internet Protocol connectivity information and the mobile station obtains Internet Protocol configuration parameters from the second access network via the established tunnel. By obtaining the Internet Protocol configuration parameters associated with the second access network via the first access network instead of waiting until an air interface connection has been established with the second access network, the mobile station may be more expeditiously handed off to the second access network in the event that such a handoff determination is made.

Abstract translation: 通信系统通过允许参与与第一接入网络的通信会话的移动台通过第一接入网络获得与第二接入网络相关联的因特网协议连接信息，来提供加速的移动因特网协议切换。 然后，基于因特网协议连接信息，经由第一接入网在移动站和第二接入网之间建立隧道，并且移动站经由建立的隧道从第二接入网获得因特网协议配置参数。 通过经由第一接入网络获得与第二接入网络相关联的因特网协议配置参数，而不是等待直到与第二接入网络建立空中接口连接，则移动台可以更迅速地切换到第二接入网络 发生这种切换确定的事件。

公开(公告)号：US07072309B2

公开(公告)日：2006-07-04

申请号：US10025521

申请日：2001-12-17

Applicant: Qiaobing Xie ,  Randall R. Stewart ,  La Monte Henry Piggy Yarroll

Inventor： Qiaobing Xie ,  Randall R. Stewart ,  La Monte Henry Piggy Yarroll

IPC: H04B7/005

CPC classification number: H04L1/1867 ,  H04L1/20 ,  H04L69/324 ,  H04W28/18

Abstract: A method and apparatus for data transmission is provided herein. In accordance with the preferred embodiment of the present invention a loss-ratio estimator (105) estimates a current loss (L) for a communication channel (108). Once the actual loss for the channel is known, a generator (104) compares the actual loss (L) to a target loss (T). A retransmission control parameter (R) is then adjusted by the generator (104) and output to a transmitter 103 where it is used to control the retransmission behavior and to determine when to abort a bad frame. When a bad frame is aborted, transmitter 103 indicates the abortion to a receiving device (102). A receiver then utilizes the indication to stop reporting the bad frame in all subsequent ACK/NAKs.

Abstract translation: 本文提供了用于数据传输的方法和装置。 根据本发明的优选实施例，损耗比估计器（105）估计通信信道（108）的电流损耗（L）。 一旦已知通道的实际损失，发电机（104）将实际损耗（L）与目标损耗（T）进行比较。 然后由发生器（104）调整重传控制参数（R），并将其输出到发射机103，在发射机103处，用于控制重发行为并确定何时中止坏帧。 当错误帧被中止时，发射机103指示到接收设备（102）的堕胎。 然后，接收器利用该指示来停止在所有后续ACK / NAK中报告坏帧。

公开(公告)号：US5585859A

公开(公告)日：1996-12-17

申请号：US245134

申请日：1994-05-17

Applicant: Rabab K. Ward ,  Pingnan Shi ,  Qiaobing Xie

Inventor： Rabab K. Ward ,  Pingnan Shi ,  Qiaobing Xie

IPC: H04N5/21 ,  H04N5/217

CPC classification number: H04N5/21

Abstract: The system for reducing composite beat, composite second order beat and thermal (snow) noise impairments in a television system digitizes individual frames to apply digitized a grey scale values (v.sub.(i,j)) to the pixels in the frames and then applying a spatial filter to a block of pixels including the then current pixel being processed to determine the pixel (P.sub.(min)) with the minimum grey scale value (v.sub.(min)) and the pixel (P.sub.(max)) in the block with the maximum grey scale value (v.sub.(min)). V.sub.(max) -v.sub.min is compared with a threshold value (v.sub.(T)) and if v.sub.(max) -v.sub.min) >v.sub.(T), the value (v.sub.(i,j)) of the pixel being processed remains unchanged, but if v.sub.(max)-v.sub.(min).notgreaterthan.v.sub.(T), a value (v.sub.(av.)) equal to the weighted average value of pixels in the block is used as the grey scale value v.sub.(R-i,j) for the pixel being processed. The block preferably, will be composed of a number of adjacent pixels in a row or a number of adjacent pixels in a column or both processed simultaneously or preferably in sequence i.e. the pixels processed along the rows and then along the columns with the values assigned to the pixels when processing along the rows used as the initial values for the pixels when processing along the columns.In more preferred cases, a plurality of frames are each subject to static filtering and then the adjacent frames in the sequence are subject to time filtering (provided motion is not detected) to provide a better average value vZ.sub.(mean) for the processed pixel in the specific frame being processed.

Abstract translation: 用于减少电视系统中的复合节拍，复合二阶节拍和热（雪）噪声损伤的系统将单个帧数字化以将数字化的灰度值（v（i，j））应用于帧中的像素，然后应用 空间滤波到包括正在处理的当前像素的像素块，以确定具有最小灰度值（v（min））的像素（P（min））和像素（P（max）） 最大灰度值（v（min））。 将V（max）-vmin与阈值（v（T））进行比较，如果v（max）-vmin）> v（T），则正在处理的像素的值（v（i，j））保持不变 ，但是如果v（max）-v（min）NOTGREATER v（T），将等于块中的像素的加权平均值的值（v（av。））用作灰度级值v（Ri，j ）用于正在处理的像素。 该块优选地将由列中的多个相邻像素或多个相邻像素组成，或者两者同时或优选地依次处理，即沿着行被处理的像素，然后沿着具有值分配给 当沿列进行处理时，像素在沿着列进行处理时用作像素的初始值。 在更优选的情况下，多个帧各自经历静态滤波，然后序列中的相邻帧经历时间滤波（提供的运动未被检测），以为处理后的像素提供更好的平均值vZ（均值） 正在处理的具体框架。