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1. 发明申请

US20110032984A1 Methods circuits and systems for transmission of video 审中-公开
标题翻译：方法用于传输视频的电路和系统
公开(公告)号：US20110032984A1
公开(公告)日：2011-02-10
申请号：US12923327
申请日：2010-09-15
申请人： Guy Dorman , Zvi Reznic , Shmuel Lifsches , Daniel Stopler
发明人： Guy Dorman , Zvi Reznic , Shmuel Lifsches , Daniel Stopler
IPC分类号： H04N7/30 , H04N7/26
CPC分类号： H04N19/625 , H04N19/115 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/507
摘要： Disclosed are methods, circuits and systems for transmission of a video block. A video stream may be composed of sequential video frames, and each video frame may be composed of one or more video blocks including a set of pixels. Prior to transmission of the data associated with a video block, a signature of the video block may be generated, for example using a spatial to frequency transform such as a two dimensional discrete cosine transform. Signatures of corresponding video blocks across consecutive video frames may be compared in order to determine whether a given video block of a current video frame is static or dynamic relative to prior video corresponding video blocks. Transmission parameters of the given block may depend on whether the block is designated as static or dynamic.
摘要翻译：公开了用于传输视频块的方法，电路和系统。视频流可以由顺序视频帧组成，并且每个视频帧可以由包括一组像素的一个或多个视频块组成。在传输与视频块相关联的数据之前，可以生成视频块的签名，例如使用诸如二维离散余弦变换的空间到频率变换。可以比较连续视频帧中的对应视频块的签名，以便确定当前视频帧的给定视频块相对于先前的视频对应视频块是静态还是动态。给定块的传输参数可能取决于块是否被指定为静态或动态。

2. 发明申请

US20120317603A1 Methods circuits & systems for transmitting and receiving data, including video data 审中-公开
标题翻译：用于发送和接收数据的电路和系统，包括视频数据
公开(公告)号：US20120317603A1
公开(公告)日：2012-12-13
申请号：US13067557
申请日：2011-06-09
申请人： Daniel Stopler , Guy Dorman , Zvi Reznic
发明人： Daniel Stopler , Guy Dorman , Zvi Reznic
IPC分类号： H04N7/18
CPC分类号： H04N21/43615 , H04N21/43637 , H04N21/44227
摘要： Disclosed are methods, circuits, apparatus, devices and systems for transmitting and receiving data, including video data. All or some portions of a video frame (i.e. video block) may be processed and/or converted into frequency domain coefficients (e.g. DCT, DFT, etc.). Some or all of the frequency domain coefficients may be encapsulated within a transmission frame (e.g. an OFDM based transmission frame) and may be transmitted to a functionally associated receiver over a transmission channel. Not all frequency coefficients may be encapsulated and transmitted, possibly due to bandwidth limitations on the transmission channel. Selection (i.e. allocation) of one or more frequency coefficients to be transmitted may be based on a Visual Quality Metric (VQM) of the associated video block, such that encapsulation and transmission preference/priority may be given to maximize the VQM of the video block. A higher video block VQM may result in a lower transmitted distortion.
摘要翻译：公开了用于发送和接收包括视频数据的数据的方法，电路，装置，装置和系统。视频帧（即，视频块）的全部或部分可被处理和/或转换成频域系数（例如，DCT，DFT等）。频域系数中的一些或全部可以被封装在传输帧（例如，基于OFDM的传输帧）内，并且可以通过传输信道被发送到功能相关的接收机。并非所有频率系数都可能被封装和传输，这可能是由于传输信道上的带宽限制。要发送的一个或多个频率系数的选择（即，分配）可以基于相关视频块的视觉质量度量（VQM），使得可以给出封装和发送偏好/优先级以使视频块的VQM最大化。较高的视频块VQM可能导致较低的传输失真。

3. 发明授权

US08559525B2 Apparatus and method for uncompressed, wireless transmission of video 有权
标题翻译：无压缩，无线传输视频的装置和方法
公开(公告)号：US08559525B2
公开(公告)日：2013-10-15
申请号：US11551641
申请日：2006-10-20
申请人： Zvi Reznic , Nathan Elnathan , Meir Feder , Shay Freundlich
发明人： Zvi Reznic , Nathan Elnathan , Meir Feder , Shay Freundlich
IPC分类号： H04N7/12
CPC分类号： H04N19/60 , H04N11/044
摘要： An apparatus and method for wireless transmission of uncompressed HDTV video overcomes the challenges of sending vast amounts of information over a wireless link. This is achieved by direct mapping of transformation coefficients of the video components to communication symbols, such as OFDM symbols. A main portion of the important transform coefficients, for example the MSBs of the coefficients representing lower frequencies of each of the video components, and in particular the quantized values of the lower frequencies components, are sent in a coarse representation using, for example, QPSK or QAM. The coefficients representing higher frequencies of the video components, and the quantization error values of the lower frequencies components, or some, non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a point in a fine constellation. The invention further provides a delay-less and buffer-less implementation of transmitter and receiver pairs.
摘要翻译：用于无压缩HDTV视频无线传输的装置和方法克服了通过无线链路发送大量信息的挑战。这通过将视频分量的变换系数直接映射到诸如OFDM符号的通信符号来实现。重要变换系数的主要部分，例如表示每个视频分量的较低频率的系数的MSB，特别是较低频率分量的量化值的MSB以粗略表示方式使用例如QPSK 或QAM。表示视频分量的较高频率的系数以及较低频率分量的量化误差值或其某些非线性变换被发送为复数的实部和虚部的对，其中包含精细点星座。本发明还提供了发射机和接收机对的无延迟和无缓冲的实现。

4. 发明授权

US07197067B2 Parameter selection in a communication system 有权
标题翻译：通信系统中的参数选择
公开(公告)号：US07197067B2
公开(公告)日：2007-03-27
申请号：US10273563
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Ran Senderovitz , Eli Haim
IPC分类号： H04B17/00
CPC分类号： H04L1/20 , H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019
摘要： A method is provided for automatically optimizing parameter selection in a communication system having one or more channels for transmitting and receiving signals by the steps of: receiving a signal from a channel; characterizing impairments in the channel while gathering statistics using the received signal; analyzing the impairments to obtain recommendations for parameter modifications for improved performance; and modifying the parameters based on the recommendations. Other systems and methods are disclosed.
摘要翻译：提供一种用于通过以下步骤自动优化具有用于发送和接收信号的一个或多个信道的通信系统中的参数选择的方法：从信道接收信号; 在使用接收信号收集统计信息的同时表征信道中的损伤; 分析损伤以获得参数修改的建议，以提高性能; 并根据建议修改参数。公开了其它系统和方法。

5. 发明授权

US07152025B2 Noise identification in a communication system 有权
公开(公告)号：US07152025B2
公开(公告)日：2006-12-19
申请号：US10273555
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： G06F17/50 , H04L12/43
CPC分类号： H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , H04L1/20
摘要： A method is provided to automatically identify noise events in a channel of a communication system comprising the steps of: receiving an input signal from the channel; determining the mean energy of the input signal; determining the recent energy of the input signal; identifying a beginning of the noise event when the recent energy is greater than the product of the mean energy and a predefined first threshold; identifying an end of a noise event when the recent energy is less that the product of the mean energy and a predefined second threshold; and providing for output the beginning of the noise event and the end of the noise event. Other systems and methods are disclosed.

6. 发明授权

US07315573B2 Channel monitoring for improved parameter selection in a communication system 有权
标题翻译：通道监控，用于改进通信系统中的参数选择
公开(公告)号：US07315573B2
公开(公告)日：2008-01-01
申请号：US10273556
申请日：2002-10-18
申请人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
发明人： Itay Lusky , Daniel Wajcer , Yosef Bendel , Yigal Bitran , Naftali Sommer , Ofir Shalvi , Zvi Reznic , Ariel Yagil , Eli Haim
IPC分类号： H04B3/46 , H04B17/00 , H04Q1/20
CPC分类号： H04L1/0001 , H04L1/0003 , H04L1/0017 , H04L1/0019 , H04L1/20 , Y02D50/10
摘要： A method is provided for automatically improving throughput of an active channel in a communication system comprising: receiving input from one or more modules that identify and characterize impairments in the active channel; monitoring the input to track changes in the impairments; and changing channel parameters to improve throughput on the channel based on the changes in the impairments. Other systems and methods are disclosed.
摘要翻译：提供了一种用于自动提高通信系统中的有效信道的吞吐量的方法，包括：从识别并描述有效信道中的损伤的一个或多个模块接收输入; 监测输入以跟踪损伤的变化; 并改变通道参数，以根据损伤的变化改善通道的吞吐量。公开了其它系统和方法。

7. 发明申请

US20070177670A1 Use of Pilot Symbols for Data Transmission in Uncompressed, Wireless Transmission of Video 审中-公开
标题翻译：在未压缩，无线视频传输中使用导频符号进行数据传输
公开(公告)号：US20070177670A1
公开(公告)日：2007-08-02
申请号：US11621919
申请日：2007-01-10
申请人： Nathan Elnathan , Meir Feder , Zvi Reznic
发明人： Nathan Elnathan , Meir Feder , Zvi Reznic
IPC分类号： H04N11/04 , H04N7/12
CPC分类号： H04N19/60 , H04L1/0003 , H04L1/0009 , H04L1/1816 , H04L1/1845
摘要： The uncompressed wireless transmission of video, as with many other wireless applications, requires constant knowledge of channel characteristics at the receiver end. To estimate the channel and track its changes, pilots containing known data are sent in various parts of the used bandwidth. The use of such pilots reduces the effective bandwidth available for data transmission. Due to the relative high immunity to introduced interference of certain transmission modes, such as QPSK and QAM, pilots can be modulated by digital data components. At the receiver, pilots are demodulated and used for a decision-directed circuit to determine the characteristics of the transmission channel. The additional bandwidth allows a higher data rate which may be such used for various purposes as diversity, coding, etc. Such use of pilot signals is of particular advantage in the wireless transmission of the DC and near DC components of essentially uncompressed video.
摘要翻译：与许多其他无线应用一样，未压缩的视频无线传输需要对接收机端的信道特性的不断了解。为了估计信道并跟踪其变化，包含已知数据的导频在所使用的带宽的各个部分被发送。这种导频的使用降低了可用于数据传输的有效带宽。由于对诸如QPSK和QAM等某些传输模式引入的干扰的相对较高的抗扰度，可以通过数字数据分量来调制导频。在接收机处，导频被解调并用于决策导向电路以确定传输信道的特性。附加带宽允许更高的数据速率，其可以用于各种目的作为分集，编码等。导频信号的这种使用在基本上未压缩视频的DC和近DC分量的无线传输中是特别有利的。

8. 发明申请

US20070171304A1 Method and Apparatus for Using the Video Blanking Period for the Maintenance of a Modem that is Used for Wireless Transmission of Video 有权
标题翻译：用于维护用于视频无线传输的调制解调器的视频消隐期的方法和装置
公开(公告)号：US20070171304A1
公开(公告)日：2007-07-26
申请号：US11619810
申请日：2007-01-04
申请人： Zvi Reznic , Nathan Elnathan , Meir Feder , Shay Freundlich
发明人： Zvi Reznic , Nathan Elnathan , Meir Feder , Shay Freundlich
IPC分类号： H04N7/00
CPC分类号： H04N7/083 , H04L12/66 , H04N7/088 , H04N17/00
摘要： The vertical blanking period is an idle period in video transmission that was originally intended for allowing the trace back of an electron beam to its point of origin. When sending the video signal over a wireless channel, the wireless channel may remain free of transmission of data during this period. However, in wireless transmission of a video signal in general, and in the transmission of an essentially uncompressed video signal in particular, there is a need to use all the bandwidth available, especially when transmitting a high-definition video signal. Therefore, a method is taught for using the vertical blanking period of a video signal for modem maintenance.
摘要翻译：垂直消隐周期是视频传输中的空闲时段，其原本旨在允许将电子束追溯到其起点。当通过无线信道发送视频信号时，无线信道在此期间可以保持不传输数据。然而，在通常的视频信号的无线传输和特别是基本上未压缩的视频信号的传输中，需要使用可用的所有带宽，特别是当发送高清晰度视频信号时。因此，教导了使用视频信号的垂直消隐期进行调制解调器维护的方法。

9. 发明授权

US06647069B1 Method and apparatus for capacity increase and enhanced communications performance in CATV networks 失效
标题翻译： CATV网络中容量增加和通信性能提高的方法和装置
公开(公告)号：US06647069B1
公开(公告)日：2003-11-11
申请号：US09302872
申请日：1999-04-30
申请人： Mordechai Segal , Ofir Shalvi , Zvi Reznic
发明人： Mordechai Segal , Ofir Shalvi , Zvi Reznic
IPC分类号： H04L2710
CPC分类号： H04N21/2383 , H04N7/102 , H04N21/4382
摘要： In a cable television (CATV) data communication network, channel throughput and communications robustness are increased in a manner that improves speed of data transmission while maintaining compatibility with existing specifications and equipment. Enhanced throughput can be realized using the return channel of the CATV network. Alternatively, data retransmission and/or diversity techniques can be used to improve throughput.
摘要翻译：在有线电视（CATV）数据通信网络中，以提高数据传输速度同时保持与现有规格和设备的兼容性的方式来增加信道吞吐量和通信鲁棒性。可以使用CATV网络的返回通道实现增强的吞吐量。或者，可以使用数据重传和/或分集技术来提高吞吐量。

10. 发明申请

US20120207207A1 Method, system and associated modules for transmission of complimenting frames 审中-公开
标题翻译：用于传输补码帧的方法，系统和相关模块
公开(公告)号：US20120207207A1
公开(公告)日：2012-08-16
申请号：US12929714
申请日：2011-02-10
申请人： Ofer Peer , Zvi Reznic
发明人： Ofer Peer , Zvi Reznic
IPC分类号： H04N7/26
CPC分类号： H04N19/597
摘要： Disclosed are methods, circuits, devices and systems for transmission of two visually complimenting video frames (e.g. left-eye frame data and right-eye frame data) of a three dimensional video stream. A set of visually complimenting video frames intended to make a substantially three dimensional image may be referred to as a three dimensional impression set. A video signal/stream in a first (e.g. 3D) format may be processed for transmission over a wireless link, wherein processing may include generating one or more transmission frames including data for at least two complimenting video frames. The data for both complimenting video frames is uncompressed.
摘要翻译：公开了用于传输三维视频流的两个视觉上相似的视频帧（例如左眼帧数据和右眼帧数据）的方法，电路，设备和系统。旨在形成基本上三维图像的一组视觉上令人满意的视频帧可以被称为三维印象集。可以处理第一（例如3D）格式的视频信号/流，以便通过无线链路进行传输，其中处理可以包括生成包括至少两个补码视频帧的数据的一个或多个传输帧。两个补码视频帧的数据都是未压缩的。

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