公开(公告)号：US20110142158A1

公开(公告)日：2011-06-16

申请号：US12926553

申请日：2010-11-24

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： H04L27/00

CPC分类号： G06T9/007 ,  G06T9/008 ,  H04N19/60

摘要： The invention enables the transmission of continuous complex numbers using a symbol based transmission scheme such as OFDM. Accordingly, complex numbers are mapped to the constellation map, enabling a fine granularity of constellation points. This scheme may be used, for example, in the transmission of video where the coefficients representing the higher frequency of each of the video components, as well as the quantization error values of the DC and near DC components, or some, possibly non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a symbol.

摘要翻译： 本发明能够使用诸如OFDM的基于符号的传输方案来传输连续复数。 因此，将复数映射到星座图，实现了星座点的精细粒度。 该方案可以用于例如视频传输，其中表示每个视频分量的较高频率的系数以及DC和近DC分量的量化误差值，或者一些可能非线性 其变换被发送为包括符号的复数的实部和虚部的对。

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。

公开(公告)号：US20100071010A1

公开(公告)日：2010-03-18

申请号：US12310730

申请日：2007-09-05

申请人： Nathan Elnathan ,  Shay Freundlich

发明人： Nathan Elnathan ,  Shay Freundlich

IPC分类号： H04N7/18

CPC分类号： H04N5/06 ,  H03L7/06

摘要： Some demonstrative embodiments include devices, systems and/or methods of wireless video communication. Some embodiments include a wireless video receiver to receive a wireless video transmission including data representing pixels of a video frame and a synchronization signal indicative of a beginning of the video frame, the wireless receiver including a clock generator to generate a pixel clock signal synchronized to the synchronization signal, wherein a clock rate of the pixel clock signal corresponds to a pixel rate of the pixels. Other embodiments are described and claimed.

摘要翻译： 一些演示实施例包括无线视频通信的设备，系统和/或方法。 一些实施例包括用于接收包括表示视频帧的像素的数据和表示视频帧的开始的同步信号的无线视频传输的无线视频接收器，所述无线接收器包括时钟发生器，以产生与该视频帧同步的像素时钟信号 同步信号，其中像素时钟信号的时钟速率对应于像素的像素速率。 描述和要求保护其他实施例。

公开(公告)号：US07511762B2

公开(公告)日：2009-03-31

申请号：US11470582

申请日：2006-09-06

申请人： Nathan Elnathan ,  Shay Freundlich

发明人： Nathan Elnathan ,  Shay Freundlich

IPC分类号： H04N9/44 ,  H04N9/455

CPC分类号： H04N5/06 ,  H03L7/06

摘要： An apparatus for receiving essentially uncompressed HDTV video must generate an accurate pixel-rate clock to enable the reconstruction of a video frame. The clock pixel-rate generated must match a received video pixel-rate. In such system, signals for generation of horizontal and vertical synchronization are not transmitted over the wireless link to conserve the use of bandwidth. In the invention, a start of frame (SOF) indication is extracted by a symbol detection and synchronization (SDS) module and is used to generate the pixel-rate clock.

摘要翻译： 用于接收基本上未压缩的HDTV视频的装置必须产生准确的像素速率时钟以使视频帧的重构成为可能。 产生的时钟像素速率必须与接收的视频像素速率相匹配。 在这种系统中，用于产生水平和垂直同步的信号不通过无线链路发送以节省带宽的使用。 在本发明中，通过符号检测和同步（SDS）模块提取帧（SOF）指示的开始并用于生成像素速率时钟。

公开(公告)号：US20080055485A1

公开(公告)日：2008-03-06

申请号：US11470582

申请日：2006-09-06

申请人： Nathan Elnathan ,  Shay Freundlich

发明人： Nathan Elnathan ,  Shay Freundlich

IPC分类号： H04N5/38 ,  H04N5/44

CPC分类号： H04N5/06 ,  H03L7/06

摘要： An apparatus for receiving essentially uncompressed HDTV video must generate an accurate pixel-rate clock to enable the reconstruction of a video frame. The clock pixel-rate generated must match a received video pixel-rate. In such system, signals for generation of horizontal and vertical synchronization are not transmitted over the wireless link to conserve the use of bandwidth. In the invention, a start of frame (SOF) indication is extracted by a symbol detection and synchronization (SDS) module and is used to generate the pixel-rate clock.

摘要翻译： 用于接收基本上未压缩的HDTV视频的装置必须产生准确的像素速率时钟以使视频帧的重构成为可能。 产生的时钟像素速率必须与接收的视频像素速率相匹配。 在这种系统中，用于产生水平和垂直同步的信号不通过无线链路发送以节省带宽的使用。 在本发明中，通过符号检测和同步（SDS）模块提取帧（SOF）指示的开始并用于生成像素速率时钟。

公开(公告)号：US08365238B2

公开(公告)日：2013-01-29

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： H04N7/16 ,  H04N7/10 ,  H04N7/12

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。

公开(公告)号：US07860180B2

公开(公告)日：2010-12-28

申请号：US11551654

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： H04L5/12 ,  H04L23/02

CPC分类号： G06T9/007 ,  G06T9/008 ,  H04N19/60

摘要： The invention enables the transmission of continuous complex numbers using a symbol based transmission scheme such as OFDM. Accordingly, complex numbers are mapped to the constellation map, enabling a fine granularity of constellation points. This scheme may be used, for example, in the transmission of video where the coefficients representing the higher frequency of each of the video components, as well as the quantization error values of the DC and near DC components, or some, possibly non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a symbol.

摘要翻译： 本发明能够使用诸如OFDM的基于符号的传输方案来传输连续复数。 因此，将复数映射到星座图，实现了星座点的精细粒度。 该方案可以用于例如视频传输，其中表示每个视频分量的较高频率的系数以及DC和近DC分量的量化误差值，或者一些可能非线性 其变换被发送为包括符号的复数的实部和虚部的对。

公开(公告)号：US20070115797A1

公开(公告)日：2007-05-24

申请号：US11551654

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： H04J11/00 ,  H04Q7/00

CPC分类号： G06T9/007 ,  G06T9/008 ,  H04N19/60

摘要： The invention enables the transmission of continuous complex numbers using a symbol based transmission scheme such as OFDM. Accordingly, complex numbers are mapped to the constellation map, enabling a fine granularity of constellation points. This scheme may be used, for example, in the transmission of video where the coefficients representing the higher frequency of each of the video components, as well as the quantization error values of the DC and near DC components, or some, possibly non-linear transformation thereof, are sent as pairs of real and imaginary portions of a complex number that comprises a symbol.

摘要翻译： 本发明能够使用诸如OFDM的基于符号的传输方案来传输连续复数。 因此，将复数映射到星座图，实现了星座点的精细粒度。 该方案可以用于例如视频传输，其中表示每个视频分量的较高频率的系数以及DC和近DC分量的量化误差值，或者一些可能非线性 其变换被发送为包括符号的复数的实部和虚部的对。

公开(公告)号：US20070091999A1

公开(公告)日：2007-04-26

申请号：US11552116

申请日：2006-10-23

申请人： Yoav Nissan-Cohen ,  Nathan Elnathan

发明人： Yoav Nissan-Cohen ,  Nathan Elnathan

IPC分类号： H04N11/04 ,  H04N7/12

CPC分类号： H04N7/015 ,  H04N19/166 ,  H04N19/30 ,  H04N19/60 ,  H04N19/625

摘要： A transmitter transmits an essentially uncompressed HDTV video by direct mapping of transformation coefficients of Y—Cr—Cb video components to communication symbols. A main portion of the important transform coefficients is sent in a coarse representation using, for example, QPSK or QAM. The coefficients representing the higher frequency of each of Y—Cr—Cb, as well as the quantization error values of the DC and near DC components, are sent as pairs of real and imaginary portions of a complex number that comprise a symbol. In the transmitter, a history containing certain information of some of the coefficients is maintained for the immediately preceding frame, and if a match is found, instead of repeating sending of these coefficients, additional high-frequency coefficients are sent. In the receiver, a history buffer containing certain information of some of the coefficients is maintained, and upon detection of an error the content of the buffer is used instead.

摘要翻译： 发射机通过将Y-Cr-Cb视频分量的变换系数直接映射到通信符号来发送基本上未压缩的HDTV视频。 使用例如QPSK或QAM以粗略表示发送重要变换系数的主要部分。 表示Y-Cr-Cb中每一个的较高频率的系数以及DC和近DC分量的量化误差值被发送为包括符号的复数的实部和虚部的对。 在发送机中，对于前一帧维持一些系数的某些信息的历史，如果发现匹配，则代替重复发送这些系数，发送附加的高频系数。 在接收机中，保持包含某些系数的某些信息的历史缓冲器，并且在检测到错误时，代替使用缓冲器的内容。

公开(公告)号：US5896335A

公开(公告)日：1999-04-20

申请号：US862662

申请日：1997-05-23

申请人： Jeffrey Van Myers ,  Nathan Elnathan

发明人： Jeffrey Van Myers ,  Nathan Elnathan

IPC分类号： G11C7/00 ,  G11C16/26

CPC分类号： G11C7/00 ,  G11C16/26

摘要： Method and apparatus for selectively inverting memory bits (41-49) in a memory (14). In one embodiment a master reversion bit (75) is used to indicate if all memory bits (41-49) have been inverted. In an alternate embodiment, row reversion bits (77) are used to indicate whether the bits in a corresponding row have been inverted. In yet another embodiment, the reversion column reversion bit (202) may be used to indicate whether the row revert bits (77) themselves have been inverted. These control bits (75, 77, 202) determine whether the output from each column of memory (14) is inverted (i.e. reverted to its original logic state) in order to provide the correct logical state at the data output of memory (14).

摘要翻译： 用于选择性地反转存储器（14）中的存储器位（41-49）的方法和装置。 在一个实施例中，主反向位（75）用于指示所有存储器位（41-49）是否已经被反转。 在替代实施例中，行反转位（77）用于指示相应行中的位是否已经被反转。 在另一个实施例中，反转列反转位（202）可以用于指示行还原位（77）本身是否已经被反转。 这些控制位（75,77,202）确定来自存储器（14）的每列的输出是否被反转（即，恢复到其原始逻辑状态），以便在存储器（14）的数据输出处提供正确的逻辑状态， 。