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公开(公告)号：US07804906B2
公开(公告)日：2010-09-28
申请号：US10979007
申请日：2004-11-01
IPC分类号： H04L27/28
CPC分类号： H04L27/263 , H04L27/265
摘要： A multicarrier transceiver is disclosed that includes a digital signal processor with a plurality of memory locations, a direct memory, an encoder module coupled to receive data from the FIFO buffers, a decoder module coupled to receive data from the FIFO buffers, a Fourier transform module configured to perform an inverse Fast Fourier transform for transmit operations and to perform Fast Fourier transform (FFT) operations for receive operations, a plurality of distributed modules including the encoder module, the decoder module and the Fourier transform module, each module configured with a memory port, each memory port coupled to a peripheral bus and the DMA bus, a plurality of memory ports coupled to each of the distributed modules, the plurality of memory ports coupled to a peripheral bus, and a plurality of point-to-point buses coupled to each of the distributed modules, the point-to-point bus configured to enable data flow and testing and provide a bypass capability for each of the distributed modules.
摘要翻译： 公开了一种多载波收发器，其包括具有多个存储器位置的数字信号处理器，直接存储器，耦合以从FIFO缓冲器接收数据的编码器模块，耦合以从FIFO缓冲器接收数据的解码器模块，傅里叶变换模块 被配置为执行用于发射操作的快速傅立叶反变换，并对接收操作执行快速傅里叶变换（FFT）操作，包括编码器模块，解码器模块和傅里叶变换模块的多个分布式模块，每个模块配置有存储器 端口，每个存储器端口耦合到外围总线和DMA总线，耦合到每个分布式模块的多个存储器端口，耦合到外围总线的多个存储器端口以及多个点对点总线耦合 对于每个分布式模块，点对点总线被配置为启用数据流和测试，并为t中的每一个提供旁路能力 他分发了模块。
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公开(公告)号：US07529789B2
公开(公告)日：2009-05-05
申请号：US10978778
申请日：2004-11-01
IPC分类号： G06F17/14
CPC分类号： G06F7/4806 , G06F7/483 , G06F17/142 , H04L27/2601
摘要： A method for storage for complex numbers that employs a shared exponent field is disclosed. Rather than each floating point component of an complex number having its own distinct signed mantissa and exponent fields, each component includes a distinct signed mantissa field and shares an exponent field, thereby increasing the possible size of each distinct signed mantissa field by as much as one half the number of bits formerly employed to store a single distinct exponent field.
摘要翻译： 公开了一种用于存储采用共享指数域的复数的方法。 不是每个具有其独特的有符号尾数和指数字段的复数的每个浮点分量，每个分量包括一个不同的有符号尾数字段，并且共享一个指数字段，从而将每个不同有符号尾数字段的可能大小增加多达一个 以前用于存储单个不同指数字段的位数的一半。
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公开(公告)号：US08145696B2
公开(公告)日：2012-03-27
申请号：US12412223
申请日：2009-03-26
CPC分类号： G06F7/4806 , G06F7/483 , G06F17/142 , H04L27/2601
摘要： A method for storage for complex numbers that employs a shared exponent field is disclosed. Rather than each floating point component of an complex number having its own distinct signed mantissa and exponent fields, each component includes a distinct signed mantissa field and shares an exponent field, thereby increasing the possible size of each distinct signed mantissa field by as much as one half the number of bits formerly employed to store a single distinct exponent field.
摘要翻译： 公开了一种用于存储采用共享指数域的复数的方法。 不是每个具有其独特的有符号尾数和指数字段的复数的每个浮点分量，每个分量包括一个不同的有符号尾数字段，并且共享一个指数字段，从而将每个不同有符号尾数字段的可能大小增加多达一个 以前用于存储单个不同指数字段的位数的一半。
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公开(公告)号：US20090187616A1
公开(公告)日：2009-07-23
申请号：US12412223
申请日：2009-03-26
IPC分类号： G06F7/38
CPC分类号： G06F7/4806 , G06F7/483 , G06F17/142 , H04L27/2601
摘要： A method for storage for complex numbers that employs a shared exponent field is disclosed. Rather than each floating point component of an complex number having its own distinct signed mantissa and exponent fields, each component includes a distinct signed mantissa field and shares an exponent field, thereby increasing the possible size of each distinct signed mantissa field by as much as one half the number of bits formerly employed to store a single distinct exponent field.
摘要翻译： 公开了一种用于存储采用共享指数域的复数的方法。 不是每个具有其独特的有符号尾数和指数字段的复数的每个浮点分量，每个分量包括一个不同的有符号尾数字段，并且共享一个指数字段，从而将每个不同有符号尾数字段的可能大小增加多达一个 以前用于存储单个不同指数字段的位数的一半。
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5.发明授权公开(公告)号：US08156778B2
公开(公告)日：2012-04-17
申请号：US12790690
申请日：2010-05-28
IPC分类号： H04J3/00
CPC分类号： H04L1/0079 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L1/0084 , H04L7/048 , Y10T70/5434
摘要： The framer, also referred to as the scrambler/Reed-Solomon encoder (SRS), is a part of the transmitter and accepts user and control data in the form of one or more logical channels, partitions this data into frames, adds error correction codes, randomizes the data through a scrambler, and multiplexes logical channels into a single data stream. The multiplexed data is then passed to the constellation encoder as the next step in the formation of the VDSL symbol. The deframer, also referred as the descrambler/Reed-Solomon decoder (DRS), is part of the receiver and performs the inverse function of the framer. Disclosed is a highly configurable hardware framer/deframer that includes a digital signal processor interface configured to provide high level control, a FIFO coupled to data interfaces, a scrambler and CRC generator, a Reed-Solomon encoder, an interleaver, a data interface coupled to a constellation encoder, a data interface coupled to a constellation decoder, a deinterleaver, a Reed-Solomon decoder, descrambler and CRC check, an interface to external data sync, methods for control of configuration of data paths between hardware blocks, and methods for control and configuration of the individual hardware blocks in a manner that provides compliance with VDSL and many related standards.
摘要翻译： 成帧器（也称为加扰器/里德 - 所罗门编码器（SRS））是发射机的一部分，并以一个或多个逻辑信道的形式接收用户和控制数据，将该数据分成帧，添加纠错码 通过扰频器对数据进行随机化，并将逻辑信道复用到单个数据流中。 然后将复用的数据作为形成VDSL符号的下一步传递到星座编码器。 解扰器（也称为解扰器/里德 - 所罗门解码器（DRS））是接收器的一部分，并执行成帧器的反向功能。 公开了一种高度可配置的硬件成帧器/解帧器，其包括被配置为提供高电平控制的数字信号处理器接口，耦合到数据接口的FIFO，加扰器和CRC发生器，里德 - 所罗门编码器，交织器，耦合到 星座编码器，耦合到星座解码器的数据接口，解交织器，里德 - 所罗门解码器，解扰器和CRC校验，到外部数据同步的接口，用于控制硬件块之间的数据路径的配置的方法以及用于控制的方法 以及以符合VDSL和许多相关标准的方式配置各个硬件块。
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6.发明授权公开(公告)号：US07729384B1
公开(公告)日：2010-06-01
申请号：US11264677
申请日：2005-11-01
IPC分类号： H04J3/00
CPC分类号： H04L1/0079 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L1/0084 , H04L7/048 , Y10T70/5434
摘要： The framer, also referred to as the scrambler/Reed-Solomon encoder (SRS), is a part of the transmitter and accepts user and control data in the form of one or more logical channels, partitions this data into frames, adds error correction codes, randomizes the data through a scrambler, and multiplexes logical channels into a single data stream. The multiplexed data is then passed to the constellation encoder as the next step in the formation of the VDSL symbol. The deframer, also referred as the descrambler/Reed-Solomon decoder (DRS), is part of the receiver and performs the inverse function of the framer. Disclosed is a highly configurable hardware framer/deframer that includes a digital signal processor interface configured to provide high level control, a FIFO coupled to data interfaces, a scrambler and CRC generator, a Reed-Solomon encoder, an interleaver, a data interface coupled to a constellation encoder, a data interface coupled to a constellation decoder, a deinterleaver, a Reed-Solomon decoder, descrambler and CRC check, an interface to external data sync, methods for control of configuration of data paths between hardware blocks, and methods for control and configuration of the individual hardware blocks in a manner that provides compliance with VDSL and many related standards.
摘要翻译： 成帧器（也称为加扰器/里德 - 所罗门编码器（SRS））是发射机的一部分，并以一个或多个逻辑信道的形式接收用户和控制数据，将该数据分成帧，添加纠错码 通过扰频器对数据进行随机化，并将逻辑信道复用到单个数据流中。 然后将复用的数据作为形成VDSL符号的下一步传递到星座编码器。 解扰器（也称为解扰器/里德 - 所罗门解码器（DRS））是接收器的一部分，并执行成帧器的反向功能。 公开了一种高度可配置的硬件成帧器/解帧器，其包括被配置为提供高电平控制的数字信号处理器接口，耦合到数据接口的FIFO，加扰器和CRC发生器，里德 - 所罗门编码器，交织器，耦合到 星座编码器，耦合到星座解码器的数据接口，解交织器，里德 - 所罗门解码器，解扰器和CRC校验，到外部数据同步的接口，用于控制硬件块之间的数据路径的配置的方法以及用于控制的方法 以及以符合VDSL和许多相关标准的方式配置各个硬件块。
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公开(公告)号：US5892757A
公开(公告)日：1999-04-06
申请号：US713134
申请日：1996-09-16
摘要： A full-duplex modem having improved transmission speeds over voice grade telephone circuits that extends the concepts of asymmetric transmission to include echo cancellation techniques. The preferred modem has a high speed forward channel and an overlapping low speed back channel and is capable of transmitting or receiving over either of the channels, depending on the relative data rates. A narrow band echo canceler substantially cancels all or part of reflected transmit signals. Because the echo cancellation technique employed is narrow band, there is a significant reduction in the complexity and computational requirements for the modem.
摘要翻译： 一种全双工调制解调器，其具有改进的语音级电话电路的传输速度，其将不对称传输的概念扩展到包括回声消除技术。 优选的调制解调器具有高速前向信道和重叠的低速回传信道，并且能够根据相对数据速率通过任一个信道进行发送或接收。 窄带回波消除器基本上消除了全部或部分反射的发射信号。 由于采用的回波消除技术是窄带，因此调制解调器的复杂性和计算要求显着降低。
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8.发明申请公开(公告)号：US20100246585A1
公开(公告)日：2010-09-30
申请号：US12790690
申请日：2010-05-28
IPC分类号： H04L12/56
CPC分类号： H04L1/0079 , H04L1/0041 , H04L1/0045 , H04L1/0057 , H04L1/0071 , H04L1/0084 , H04L7/048 , Y10T70/5434
摘要： The framer, also referred to as the scrambler/Reed-Solomon encoder (SRS), is a part of the transmitter and accepts user and control data in the form of one or more logical channels, partitions this data into frames, adds error correction codes, randomizes the data through a scrambler, and multiplexes logical channels into a single data stream. The multiplexed data is then passed to the constellation encoder as the next step in the formation of the VDSL symbol. The deframer, also referred as the descrambler/Reed-Solomon decoder (DRS), is part of the receiver and performs the inverse function of the framer. Disclosed is a highly configurable hardware framer/deframer that includes a digital signal processor interface configured to provide high level control, a FIFO coupled to data interfaces, a scrambler and CRC generator, a Reed-Solomon encoder, an interleaver, a data interface coupled to a constellation encoder, a data interface coupled to a constellation decoder, a deinterleaver, a Reed-Solomon decoder, descrambler and CRC check, an interface to external data sync, methods for control of configuration of data paths between hardware blocks, and methods for control and configuration of the individual hardware blocks in a manner that provides compliance with VDSL and many related standards.
摘要翻译： 成帧器（也称为加扰器/里德 - 所罗门编码器（SRS））是发射机的一部分，并以一个或多个逻辑信道的形式接收用户和控制数据，将该数据分成帧，添加纠错码 通过扰频器对数据进行随机化，并将逻辑信道复用到单个数据流中。 然后将复用的数据作为形成VDSL符号的下一步传递到星座编码器。 解扰器（也称为解扰器/里德 - 所罗门解码器（DRS））是接收器的一部分，并执行成帧器的反向功能。 公开了一种高度可配置的硬件成帧器/解帧器，其包括被配置为提供高电平控制的数字信号处理器接口，耦合到数据接口的FIFO，加扰器和CRC发生器，里德 - 所罗门编码器，交织器，耦合到 星座编码器，耦合到星座解码器的数据接口，解交织器，里德 - 所罗门解码器，解扰器和CRC校验，到外部数据同步的接口，用于控制硬件块之间的数据路径的配置的方法以及用于控制的方法 以及以符合VDSL和许多相关标准的方式配置各个硬件块。
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公开(公告)号：US4908699A
公开(公告)日：1990-03-13
申请号：US299290
申请日：1989-01-23
CPC分类号： H04N9/76
摘要： A method for accumulating component video signals non-additively adds the luminance components to produce an accumulated luminance component, and additively adds the chrominance components to produce an accumulated chrominance component. The accumulated chrominance component may be clipped to limit chrominance values in an overlap area to legal color values. The intentional overlap of the component video signals produces an accumulation special effect in the overlap area.
摘要翻译： 积分分量视频信号的方法是非加性地加上亮度分量以产生累积的亮度分量，并且相加地增加色度分量以产生累积的色度分量。 累积的色度分量可以被限制以将重叠区域中的色度值限制为合法的颜色值。 分量视频信号的有意重叠在重叠区域产生积累特殊效果。
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公开(公告)号：US06636519B1
公开(公告)日：2003-10-21
申请号：US09332583
申请日：1999-06-14
申请人： Dale M. Walsh , Andrew L. Norrell , Donald C. Balton , Terrel L. Jones , Marc S. Baum , Robert C. Suffern , Christopher R. Hansen , Jeffrey E. Herman , Thanh Q. Ngo , Daniel L. Schoo , Gregory Warren Goodknight
发明人： Dale M. Walsh , Andrew L. Norrell , Donald C. Balton , Terrel L. Jones , Marc S. Baum , Robert C. Suffern , Christopher R. Hansen , Jeffrey E. Herman , Thanh Q. Ngo , Daniel L. Schoo , Gregory Warren Goodknight
IPC分类号： H04L1246
摘要： Apparatus and method for enabling bilateral transmission of digital data between a local area network and telephone company networks employing both analog and digital telephone lines. A modem modulates signals responsive to signals from a local area network representing an outgoing call to form digital telephone signals suitable for transmission by a telephone line and suitable for demodulation by receiving analog modems. A circuit switched time division multiplex bus transmits the digital telephone signals to the telephone line. The modem also demodulates incoming digital telephone signals to form digital network bus signals divided into packets. A packet bus transmits the digital network bus signals to a network interface which processes the signals and transmits them to the local area network.
摘要翻译： 用于在局域网和采用模拟和数字电话线的电话公司网络之间双向传输数字数据的装置和方法。 调制解调器响应于来自代表呼出呼叫的局域网的信号来调制信号以形成适合于通过电话线传输并适于通过接收模拟调制解调器进行解调的数字电话信号。 电路交换时分复用总线将数字电话信号发送到电话线。 调制解调器还对输入的数字电话信号进行解调，形成分组的数字网络总线信号。 分组总线将数字网络总线信号发送到处理信号并将其发送到局域网的网络接口。
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