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公开(公告)号：US07559076B2
公开(公告)日：2009-07-07
申请号：US10184770
申请日：2002-06-28
Applicant: Tommy Yu , Steven Jaffe , Stephen Edward Krafft
Inventor： Tommy Yu , Steven Jaffe , Stephen Edward Krafft
IPC: H04N5/445
CPC classification number: H04N21/437 , H04L27/3881 , H04N7/173 , H04N21/2383 , H04N21/239 , H04N21/41407 , H04N21/4382 , H04N21/6131 , H04N21/6181
Abstract: Sample rate reduction in data communication receivers. Digital sampling of analog data is performed using a reduced sample rate. The reduction factor may be any number of factors including a factor that divides the sample rate by a factor of two. The reduction of the sampling frequency is from a sampling frequency that is greater than twice the highest frequency component in an analog input signal. These analog input signals may be I and Q streams in certain embodiments. A digital interpolation filter may be employed to increase (up-convert) the sample rate of a digital signal before it is input to a VID filter that is used to recover the transmitted symbols from the over-sampled data stream. In this embodiment, this technique allows a front end of a communication receiver to be clocked at a lower sampling rate without affecting the performance of the VID filter.
Abstract translation: 数据通信接收机采样率降低。 使用降低的采样率进行模拟数据的数字采样。 减少因子可以是任何数量的因素，包括将采样率除以因子2的因子。 采样频率的降低来自大于模拟输入信号中最高频率分量的两倍的采样频率。 在某些实施例中，这些模拟输入信号可以是I和Q流。 可以采用数字内插滤波器来增加（上转换）数字信号的采样速率，然后再将其输入到用于从过采样数据流中恢复发送符号的VID滤波器。 在该实施例中，该技术允许通信接收器的前端以较低的采样率被计时，而不影响VID滤波器的性能。
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公开(公告)号：US08254475B2
公开(公告)日：2012-08-28
申请号：US12344909
申请日：2008-12-29
Applicant: Steven Jaffe , Stephen Edward Krafft
Inventor： Steven Jaffe , Stephen Edward Krafft
IPC: H04L27/28
CPC classification number: H04L1/0072 , H04L1/0041 , H04L2001/0097
Abstract: Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.
Abstract translation: 物理层（PHY）子通道处理。 软符号决策流被布置成多个子信道，以基本上减少在通信接收机内对不是针对该通信接收机的数据执行的处理。 在其他实施例中，采用预定方法将软符号决策流布置成一个或多个帧; 每个帧可以具有一个或多个软符号块; 并且每个软符号块可以具有一个或多个符号。 帧中的每个软符号块可以被分配给子信道。 只需要包含指定给通信接收器的信息的软符号块被解码。 只需要包含去往该通信接收机的这些软符号块的子信道被解码。 不在子信道内的软符号块可能被丢弃，从而恢复通信接收机的一些处理能力。
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公开(公告)号：US20100267330A1
公开(公告)日：2010-10-21
申请号：US12825893
申请日：2010-06-29
Applicant: Alan Y. Kwentus , Charles Alan Brooks , Steven Jaffe , Stephen Edward Krafft
Inventor： Alan Y. Kwentus , Charles Alan Brooks , Steven Jaffe , Stephen Edward Krafft
IPC: H04H20/74
CPC classification number: H04N21/2383 , H04N21/4382
Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.
Abstract translation: 通信信号转码器。 提供了将信号从第一信号类型转换为第二信号类型的解决方案，以确保可以使用不同信号类型操作的设备之间的适当接口。 例如，在通信系统中，可以接收第一信号类型（具有第一调制类型，例如8PSK）。 代码转换器然后确保该信号经过任何初始处理（诸如调谐，下变换，解码等等）之后被编码为第二信号类型（具有第二调制类型，例如QPSK），例如 它可以与接收到的信号的设备正确连接。 该代码转换器功能可以在分立组件内实现，或者可选地集成在集成电路的功能块内。 该功能可以在包括卫星，有线电视，因特网等的各种通信系统中实现。
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公开(公告)号：US20100002809A1
公开(公告)日：2010-01-07
申请号：US12344909
申请日：2008-12-29
Applicant: Steven Jaffe , Stephen Edward Krafft
Inventor： Steven Jaffe , Stephen Edward Krafft
CPC classification number: H04L1/0072 , H04L1/0041 , H04L2001/0097
Abstract: Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.
Abstract translation: 物理层（PHY）子通道处理。 软符号决策流被布置成多个子信道，以基本上减少在通信接收机内对不是针对该通信接收机的数据执行的处理。 在其他实施例中，采用预定方法将软符号决策流布置成一个或多个帧; 每个帧可以具有一个或多个软符号块; 并且每个软符号块可以具有一个或多个符号。 帧中的每个软符号块可以被分配给子信道。 只需要包含指定给通信接收器的信息的软符号块被解码。 只需要包含去往该通信接收机的这些软符号块的子信道被解码。 不在子信道内的软符号块可能被丢弃，从而恢复通信接收机的一些处理能力。
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公开(公告)号：US07266155B2
公开(公告)日：2007-09-04
申请号：US10420089
申请日：2003-04-22
Applicant: Steven Jaffe , Stephen Edward Krafft
Inventor： Steven Jaffe , Stephen Edward Krafft
IPC: H04K1/10
CPC classification number: H04L1/0072 , H04L1/0041 , H04L2001/0097
Abstract: Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.
Abstract translation: 物理层（PHY）子通道处理。 软符号决策流被布置成多个子信道，以基本上减少在通信接收机内对不是针对该通信接收机的数据执行的处理。 在其他实施例中，采用预定方法将软符号决策流布置成一个或多个帧; 每个帧可以具有一个或多个软符号块; 并且每个软符号块可以具有一个或多个符号。 帧中的每个软符号块可以被分配给子信道。 只需要包含指定给通信接收器的信息的软符号块被解码。 只需要包含去往该通信接收机的这些软符号块的子信道被解码。 不在子信道内的软符号块可能被丢弃，从而恢复通信接收机的一些处理能力。
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Patent Agency Ranking
公开(公告)号：US07139332B2
公开(公告)日：2006-11-21
申请号：US10184766
申请日：2002-06-28
Applicant: Tommy Yu , Steven Jaffe , Stephen Edward Krafft
Inventor： Tommy Yu , Steven Jaffe , Stephen Edward Krafft
CPC classification number: H04L27/00
Abstract: Quadrature receiver sampling architecture. A signal ADC performs analog to digital conversion for both I and Q streams. An analog MUX selects the appropriate I and the Q baseband analog input streams for input to the ADC at the appropriate time. A digital filter may also be employed to compensate for any introduced delay between the samples of the I and Q channel when seeking to recover the symbols that have been transmitted to a communication receiver that employs this quadrature receiver architecture and/or signal processing. In one embodiment, if an ADC is clocked at a rate of substantially twice the sample rate of the I and Q channels, there will be a one-half sample clock delay between the digital I and digital Q data at the output of the ADC. This delay is then removed before the demodulator processes the input signals to recover the transmitted symbols.
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公开(公告)号：US20120314812A1
公开(公告)日：2012-12-13
申请号：US13591389
申请日：2012-08-22
Applicant: Steven Jaffe , Stephen Edward Krafft
Inventor： Steven Jaffe , Stephen Edward Krafft
IPC: H04L27/00
CPC classification number: H04L1/0072 , H04L1/0041 , H04L2001/0097
Abstract: Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.
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公开(公告)号：US07751477B2
公开(公告)日：2010-07-06
申请号：US10736434
申请日：2003-12-15
Applicant: Alan Y. Kwentus , Charles Alan Brooks , Steven Jaffe , Stephen Edward Krafft
Inventor： Alan Y. Kwentus , Charles Alan Brooks , Steven Jaffe , Stephen Edward Krafft
CPC classification number: H04N21/2383 , H04N21/4382
Abstract: Communications signal transcoder. A solution is provided to transcode a signal from a first signal type to a second signal type to ensure proper interfacing between devices that may operate using different signal types. For example, within a communication system, a first signal type (having a first modulation type, e.g., 8 PSK) may be received. The transcoder then ensures that this signal, after it has undergone any initial processing (such as tuning, down-converting, decoding, and so on), is encoded into a second signal type (having a second modulation type, e.g., QPSK) such that it can interface properly with a device for which the received signal is intended. This transcoder functionality may be implemented within discrete components, or it may alternatively be integrated within a functional block of an integrated circuit. This functionality may be implemented in a variety of communication systems including satellite, cable television, Internet, and others.
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公开(公告)号：US07471731B2
公开(公告)日：2008-12-30
申请号：US11832530
申请日：2007-08-01
Applicant: Steven Jaffe , Stephen Edward Krafft
Inventor： Steven Jaffe , Stephen Edward Krafft
IPC: H04L5/12
CPC classification number: H04L1/0072 , H04L1/0041 , H04L2001/0097
Abstract: Physical layer (PHY) sub-channel processing. A soft symbol decision stream is arranged into a number of sub-channels to reduce substantially the processing performed within a communication receiver on data that is not intended for that communication receiver. In other embodiments, a predetermined approach is employed to arrange the soft symbol decision stream into one or more frames; each frame may have one or more soft symbol blocks; and each soft symbol block may have one or more symbols. Each of the soft symbol blocks, within a frame, may be assigned to a sub-channel. Only the soft symbol blocks that contain information destined for the communication receiver need be decoded. Only the sub-channel that includes these soft symbol blocks, destined for this communication receiver, need be decoded. The soft symbol blocks not within the sub-channel may be discarded thereby recovering some of the processing capabilities of the communication receiver.
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公开(公告)号：US08462837B2
公开(公告)日：2013-06-11
申请号：US13273911
申请日：2011-10-14
Applicant: Thuji Simon Lin , Steven Jaffe , Robindra Joshi
Inventor： Thuji Simon Lin , Steven Jaffe , Robindra Joshi
IPC: H04B3/46
CPC classification number: H04L27/34 , H04L1/0003 , H04L25/03178 , H04L25/03184
Abstract: A device of dynamic communication of information allows, on the average, non-integer bits per symbol transmission, using a compact code set or a partial response decoding receiver. A stream of selectable predetermined integer bits, e.g., k or k+1 data bits, is grouped into a selectable integer number of bit vectors which then are mapped onto corresponding signal constellations forming transmission symbols. Two or more symbols can be grouped and further encoded, so that a symbol is spread across the two or more symbols being communicated. Sequence estimation using, for example, maximum likelihood techniques, as informed by noise estimates relative to the received signal. Each branch metric in computing the path metric of a considered sequence at the receiver is weighted by the inverse of the noise power. It is desirable that the constellation selection, sequence estimation and noise estimation be performed continuously and dynamically.
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