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：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：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。

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。

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：US20070098063A1

公开(公告)日：2007-05-03

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： H04N11/04 ,  H04B1/66

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：US20070198887A1

公开(公告)日：2007-08-23

申请号：US11613053

申请日：2006-12-19

申请人： Zvi Reznic ,  Meir Feder ,  Shay Freundlich

发明人： Zvi Reznic ,  Meir Feder ,  Shay Freundlich

IPC分类号： H03M13/00

CPC分类号： H03M13/35 ,  H04L1/007 ,  H04N7/015 ,  H04N19/37 ,  H04N19/67 ,  H04N19/89

摘要： Wireless transmission of high-definition video, whether essentially uncompressed or compressed, is prone to errors during reception due to the condition of the wireless link. To ensure video quality during changing link conditions it is desirable to ensure that those portions of the video that represent the more important components of the video signal, such as the lower special frequencies or most significant bits, are assured correct reception at the receiver. Bandwidth limitations of the wireless link affect the amount of data that can be sent over the link. Hence, using a high level error recovery for all of the information is not feasible. Accordingly, a method and apparatus for unequal error protection is disclosed that provides a higher level of error protection to the more important elements of the transmission while affording less error protection to the other elements of the transmission.

摘要翻译： 由于无线链路的状况，高分辨率视频的无线传输（无论是基本上是未压缩的还是压缩的）容易在接收期间发生错误。 为了在改变链路条件期间确保视频质量，期望确保视频信号的更重要组件的那些部分，例如较低特殊频率或最高有效位，确保接收机正确的接收。 无线链路的带宽限制影响可以通过链路发送的数据量。 因此，对所有信息使用高级错误恢复是不可行的。 因此，公开了一种用于不平等的错误保护的方法和装置，其为传输的更重要的元件提供更高级别的错误保护，同时对传输的其他元件提供较少的错误保护。

公开(公告)号：US20070291855A1

公开(公告)日：2007-12-20

申请号：US11768583

申请日：2007-06-26

申请人： Zvi Reznic ,  Meir Feder ,  Shay Freundlich

发明人： Zvi Reznic ,  Meir Feder ,  Shay Freundlich

IPC分类号： H04B1/66

CPC分类号： H04L1/0089 ,  H04N7/1675 ,  H04N19/36 ,  H04N19/61 ,  H04N19/67 ,  H04N21/234327 ,  H04N21/2347 ,  H04N21/4353 ,  H04N21/43637

摘要： Some demonstrative embodiments of the invention include devices, systems and/or methods of error-protection of a wireless video transmission. Some demonstrative embodiments of the invention include a wireless transmitter to transmit a wireless transmission including a data stream corresponding to at least a video signal. The data stream may include a plurality of data components, which are protected according to an unequal error protection scheme. At least first and second data components of the plurality of data components may be protected by first and second error protection mechanisms, respectively. Other embodiments are described and claimed.

摘要翻译： 本发明的一些演示实施例包括无线视频传输的错误保护的设备，系统和/或方法。 本发明的一些演示实施例包括：无线发射机，用于发射包括至少对应于视频信号的数据流的无线传输。 数据流可以包括根据不相等的错误保护方案来保护的多个数据组件。 多个数据组件中的至少第一和第二数据组件可以分别由第一和第二错误保护机制来保护。 描述和要求保护其他实施例。