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1. 发明申请

US20150312530A1 DYNAMICALLY ADJUSTABLE MIRRORS 审中-公开
标题翻译：动态调整镜
公开(公告)号：US20150312530A1
公开(公告)日：2015-10-29
申请号：US14536060
申请日：2014-11-07
申请人： RAZMIK KARABED
发明人： RAZMIK KARABED
IPC分类号： H04N7/18 , G01B11/26 , B60R1/08 , B60R1/02 , B60R1/00
CPC分类号： G01B11/26 , B60R1/025 , B60R1/081
摘要： A dynamically adjustable system for updating an angular orientation of a surveillance device of a moving vehicle is disclosed. The system comprises a surveillance device, a motor coupled to the surveillance device, a compass based angular sensor configured for detecting the orientation of a vehicle, and a controller. The controller calculates the updated angular orientation of the surveillance device and sends control signals to the motor. The motor rotates the surveillance device such that the surveillance device provides a driver of the vehicle with a key desired field of view. Pitch and roll sensors may also be employed by the system. When a turning event is detected, the controller dynamically changes the angles of the surveillance devices to provide the driver with a view of important roads within the intersection.
摘要翻译：公开了一种用于更新移动车辆的监视装置的角度定向的动态可调系统。该系统包括监视装置，耦合到监视装置的电动机，被配置为检测车辆方向的罗盘角度传感器和控制器。控制器计算监视装置的更新的角度方向，并向电动机发送控制信号。电动机旋转监视装置，使得监视装置为车辆的驾驶员提供期望的视场。系统也可以使用俯仰和滚动传感器。当检测到转向事件时，控制器动态地改变监视装置的角度，以向司机提供交叉路口内的重要道路的视图。

2. 发明授权

US08413023B2 Error-locator-polynomial generation with erasure support 有权
标题翻译：错误定位 - 多项式生成与擦除支持
公开(公告)号：US08413023B2
公开(公告)日：2013-04-02
申请号：US12651392
申请日：2009-12-31
申请人： Vincent Brendan Ashe , Hakan C. Ozdemir , Razmik Karabed , Richard Barndt
发明人： Vincent Brendan Ashe , Hakan C. Ozdemir , Razmik Karabed , Richard Barndt
IPC分类号： G06F11/00
CPC分类号： H03M13/154 , G11B20/1833 , G11B2020/1836 , G11B2220/2516 , H03M13/152 , H03M13/153 , H03M13/1545 , H03M13/41 , H03M13/455 , H03M13/6343
摘要： A system and method for correcting errors in an ECC block using erasure-identification data when generating an error-locator polynomial. In an embodiment, a ECC decoding method, uses “erasure” data indicative of bits of data that are unable to be deciphered by a decoder. Such a method may use an Berlekamp-Massey algorithm that receives two polynomials as inputs; a first polynomial indicative of erasure location in the stream of bits and a syndrome polynomial indicative of all bits as initially determined. The Berlekamp-Massey algorithm may use the erasure identification information to more easily decipher the overall codeword when faced with a error-filled codeword.
摘要翻译：一种用于在生成错误定位多项式时使用擦除识别数据来校正ECC块中的错误的系统和方法。在一个实施例中，ECC解码方法使用指示不能被解码器解密的数据位的擦除数据。这种方法可以使用接收两个多项式作为输入的Berlekamp-Massey算法; 指示比特流中的擦除位置的第一多项式和指示最初确定的所有比特的校正子多项式。 Berlekamp-Massey算法可以使用擦除识别信息在面对错误填充码字时更容易地破译整个码字。

3. 发明授权

US07743314B2 Method and apparatus for a data-dependent noise predictive viterbi 有权
标题翻译：用于数据相关噪声预测维特比的方法和装置
公开(公告)号：US07743314B2
公开(公告)日：2010-06-22
申请号：US11607492
申请日：2006-12-01
申请人： Heinrich J. Stockmanns , William G. Bliss , Razmik Karabed , James W. Rae
发明人： Heinrich J. Stockmanns , William G. Bliss , Razmik Karabed , James W. Rae
IPC分类号： H03M13/03
CPC分类号： G11B20/10296 , G11B20/10009
摘要： An improved Viterbi detector is disclosed in which each branch metric is calculated based on noise statistics that depend on the signal hypothesis corresponding to the branch. Also disclosed is a method of reducing the complexity of the branch metric calculations by clustering branches corresponding to signals with similar signal-dependent noise statistics. A feature of this architecture is that the branch metrics (and their corresponding square difference operators) are clustered into multiple groups, where all the members of each group draw input from a single, shared noise predictive filter corresponding to the group. In recording technologies as practiced today, physical imperfections in the representation of recorded user data in the recording medium itself are becoming the dominate source of noise in the read back data. This noise is highly dependent on what was (intended to be) written in the medium. The disclosed Viterbi detector exploits this statistical dependence of the noise on the signal.
摘要翻译：公开了一种改进的维特比检测器，其中基于依赖于与分支对应的信号假设的噪声统计来计算每个分支度量。还公开了一种通过对与具有相似的信号相关噪声统计信号的信号进行聚类的分支来降低分支度量计算的复杂度的方法。该架构的一个特点是分支度量（及其对应的平方差运算符）被聚集成多个组，其中每个组的所有成员从与组相对应的单个共享噪声预测滤波器中绘制输入。在今天所采用的记录技术中，在记录介质本身中记录的用户数据的表示中的物理缺陷正在回读数据中成为主要的噪声源。这种噪音很大程度上取决于介质中写的内容。所公开的维特比检测器利用噪声对信号的统计依赖性。

4. 发明申请

US20070076826A1 Method and apparatus for a data-dependent noise predictive viterbi 有权
标题翻译：用于数据相关噪声预测维特比的方法和装置
公开(公告)号：US20070076826A1
公开(公告)日：2007-04-05
申请号：US11607492
申请日：2006-12-01
申请人： Heinrich Stockmanns , William Bliss , Razmik Karabed , James Rae
发明人： Heinrich Stockmanns , William Bliss , Razmik Karabed , James Rae
IPC分类号： H03D1/00
CPC分类号： G11B20/10296 , G11B20/10009
摘要： An improved Viterbi detector is disclosed in which each branch metric is calculated based on noise statistics that depend on the signal hypothesis corresponding to the branch. Also disclosed is a method of reducing the complexity of the branch metric calculations by clustering branches corresponding to signals with similar signal-dependent noise statistics. A feature of this architecture is that the branch metrics (and their corresponding square difference operators) are clustered into multiple groups, where all the members of each group draw input from a single, shared noise predictive filter corresponding to the group. In recording technologies as practiced today, physical imperfections in the representation of recorded user data in the recording medium itself are becoming the dominate source of noise in the read back data. This noise is highly dependent on what was (intended to be) written in the medium. The disclosed Viterbi detector exploits this statistical dependence of the noise on the signal.
摘要翻译：公开了一种改进的维特比检测器，其中基于依赖于与分支对应的信号假设的噪声统计来计算每个分支度量。还公开了一种通过对与具有相似的信号相关噪声统计信号的信号进行聚类的分支来降低分支度量计算的复杂度的方法。该架构的一个特点是分支度量（及其对应的平方差运算符）被聚集成多个组，其中每个组的所有成员从与组相对应的单个共享噪声预测滤波器中绘制输入。在今天所采用的记录技术中，在记录介质本身中记录的用户数据的表示中的物理缺陷正在回读数据中成为主要的噪声源。这种噪音很大程度上取决于介质中写的内容。所公开的维特比检测器利用噪声对信号的统计依赖性。

5. 发明申请

US20060164265A1 High rate coding for media noise 有权
公开(公告)号：US20060164265A1
公开(公告)日：2006-07-27
申请号：US11359453
申请日：2006-04-06
申请人： William Bliss , Andrei Vityaev , Razmik Karabed
发明人： William Bliss , Andrei Vityaev , Razmik Karabed
IPC分类号： H03M7/00
CPC分类号： G11B20/1426 , G11B20/10009 , G11B20/1833 , G11B2020/1446 , H03M5/145 , H03M13/093
摘要： An apparatus has a conversion circuit, a precoder circuit, and a selection circuit. The conversion circuit converts user data b1, b2, b3 . . . bk to a coded sequence c0, c1, c2 . . . cq. The selection circuit selects c0 in the coded sequence c0, c1, c2 . . . cq such that the output of the precoder circuit has less than a maximum number q of transitions. The conversion circuit may include an encoder circuit to convert user data b1, b2, b3 . . . bk to a sequence c1, c2 . . . cq, and a transition minimization circuit to add c0 to the sequence c1, c2 . . . cq. The apparatus may have a circuit to add at least one additional bit, which may be a parity bit, to the coded sequence c0, c1, c2 . . . cq.

6. 发明授权

US06788223B2 High rate coding for media noise 有权
标题翻译：高速编码媒体噪声
公开(公告)号：US06788223B2
公开(公告)日：2004-09-07
申请号：US10253911
申请日：2002-09-25
申请人： William G. Bliss , Andrei Vityaev , Razmik Karabed
发明人： William G. Bliss , Andrei Vityaev , Razmik Karabed
IPC分类号： H03M700
CPC分类号： G11B20/1426 , G11B20/10009 , G11B20/1833 , G11B2020/1446 , H03M5/145 , H03M13/093
摘要： An apparatus has a conversion circuit, a precoder circuit, and a selection circuit. The conversion circuit converts user data b1, b2, b3 . . . bk to a coded sequence c0, c1, c2 . . . cq. The selection circuit selects c0 in the coded sequence c0, c1, c2 . . . cq such that the output of the precoder circuit has less than a maximum number q of transitions. The conversion circuit may include an encoder circuit to convert user data b1, b2, b3 . . . bk to a sequence c1, c2 . . . cq, and a transition minimization circuit to add c0 to the sequence c1, c2 . . . cq. The apparatus may have a circuit to add at least one additional bit, which may be a parity bit, to the coded sequence c0, c1, c2 . . . cq.
摘要翻译：一种装置具有转换电路，预编码器电路和选择电路。转换电路转换用户数据b1，b2，b3。。。 bk到编码序列c0，c1，c2。。。 cq。选择电路以编码序列c0，c1，c2选择c0。。。 cq，使得预编码器电路的输出具有小于转换的最大数量q。转换电路可以包括用于转换用户数据b1，b2，b3的编码器电路。。。 bk到序列c1，c2。。。 cq，以及将c0加到序列c1，c2的转移最小化电路。。。 cq。该装置可以具有向编码序列c0，c1，c2添加至少一个附加位（可以是奇偶校验位）的电路。。。 cq。

7. 发明授权

US5809080A System and method for coding partial response channels with noise predictive Viterbi detectors 失效
标题翻译：用噪声预测维特比检测器对部分响应信道进行编码的系统和方法
公开(公告)号：US5809080A
公开(公告)日：1998-09-15
申请号：US541675
申请日：1995-10-10
申请人： Razmik Karabed , Nersi Nazari
发明人： Razmik Karabed , Nersi Nazari
IPC分类号： H04L25/03 , H04L5/12
CPC分类号： H04L25/03178 , H04L2025/03369
摘要： A system and method includes an encoder and noise predictive Viterbi detector tuned such that error events with small values of the unique distance metrics are eliminated so that the error rate is enhanced. The system includes an encoder, a modulator, a PR channel and a detector. An input signal is input to the encoder. The encoder preferably encodes the input string with an even weight code to generate a code string thereby providing high code rates that are easy to implement. The output of the encoder is coupled to the input of the PR channel. The PR channel preferably comprises a filter and a noise source coupled to form a channel, a sampler, a low pass filter and an equalizer. The output of the channel is input to the low pass filter. The output of the low pass filter is coupled by the sampler to the input of the equalizer. Finally, the output of the equalizer is coupled to the input of the detector. The detector is a noise predictive Viterbi detector (NPV) and like the encoder is made such that error events with small values of d' are eliminated. In particular, the NPV detector includes a combined code parity and partial response trellis which advantageously reduces the hardware required for the system.
摘要翻译：一种系统和方法包括编码器和噪声预测维特比检测器，其被调谐，使得消除了具有小的唯一距离度量值的误差事件，从而提高了误码率。该系统包括编码器，调制器，PR通道和检测器。输入信号输入到编码器。编码器优选地以均匀权重码对输入串进行编码，以产生代码串，由此提供易于实现的高码率。编码器的输出端连接到PR通道的输入端。 PR信道优选地包括滤波器和耦合以形成信道的噪声源，采样器，低通滤波器和均衡器。通道的输出被输入到低通滤波器。低通滤波器的输出由采样器耦合到均衡器的输入端。最后，均衡器的输出耦合到检测器的输入端。检测器是噪声预测维特比检测器（NPV），并且像编码器一样，使得具有小值d'的误差事件被消除。特别地，NPV检测器包括组合代码奇偶校验和部分响应网格，其有利地减少了系统所需的硬件。

8. 发明授权

US5280489A Time-varying Viterbi detector for control of error event length 失效
标题翻译：用于控制误差事件长度的时变维特比检测器
公开(公告)号：US5280489A
公开(公告)日：1994-01-18
申请号：US869570
申请日：1992-04-15
申请人： Lyle J. Fredrickson , Razmik Karabed , James W. Rae , Paul H. Siegel , Hemant K. Thapar , Roger W. Wood
发明人： Lyle J. Fredrickson , Razmik Karabed , James W. Rae , Paul H. Siegel , Hemant K. Thapar , Roger W. Wood
IPC分类号： H03M13/31 , G06F11/20 , H03M13/12
CPC分类号： H03M13/31
摘要： A method and apparatus for detecting spectral null sequences of a spectrally-constrained code on a noisy communications channel. From a Viterbi detector with a trellis structure comprising a plurality of states and edges, predetermined ones of the states and edges in the trellis structure are deleted at preselected times modulo N, such as times .phi. modulo N and/or at intermediate times m modulo N, where m=.phi., thereby to create a time-varying trellis structure for limiting the maximum length of dominant error events. The deleted edges are generally those edges which would have entered or emanated from the deleted states if they were not deleted. The trellis structure may be a so-called systolic structure, in which case the spectral null sequences are preferably DC-free or Nyquist free.
摘要翻译：一种用于检测噪声通信信道上的频谱约束码的频谱零序列的方法和装置。从具有包括多个状态和边缘的网格结构的维特比检测器，网格结构中的预定的状态和边缘被预选为时间N，例如时间（phi）模N和/或中间时间m 模N，其中m =（phi），从而产生用于限制主要误差事件的最大长度的时变网格结构。删除的边通常是那些从删除状态输入或发出的边缘，如果它们没有被删除。网格结构可以是所谓的收缩结构，在这种情况下，光谱无效序列优选不含DC或奈奎斯特。

9. 发明授权

US4870414A Even mark modulation coding method 失效
标题翻译：偶标记调制编码方法
公开(公告)号：US4870414A
公开(公告)日：1989-09-26
申请号：US169918
申请日：1988-03-18
申请人： Razmik Karabed , Paul H. Siegel
发明人： Razmik Karabed , Paul H. Siegel
IPC分类号： H04L25/08 , G11B20/10 , H03M5/14 , H03M13/23 , H04L25/49 , H04L25/497
CPC分类号： G11B20/10009 , H03M5/145 , H04L25/4908 , H04L25/497
摘要： A method termed Even Mark Modulation (EMM) is disclosed for coding input strings for input-restricted (1+D) or (1+D).sup.2 partial response channels that require at least one pair of consecutive signals of one state in order to record or transmit data to a receiving device. EMM provides improved coding gains and is especially suitable for optical recording.An input string is encoded into a binary code string in which all one-state signals (e.g., "1's") are in the form of runs of at least one contiguous pair; however, signals of an opposite state (e.g., "0's") may be of any length or duration. The EMM signals are detected with a maximum likelihood detector using an algorithm based on a three-state trellis structure for (1+D) channels and a five-state trellis structure for (1+D).sup.2 channels adapted to the particular partial response channel. In a preferred embodiment, the coding rate is 2/3 and the coding gain is at least 3 dB unnormalized and at least 2.2 dB when normalized. A finite-state encoder and sliding block decoder are disclosed, together with logic equations for encoder and decoder circuits.

10. 发明申请

US20160264050A1 DYNAMICALLY ADJUSTING SURVEILLANCE DEVICES 审中-公开
标题翻译：动态调整监控设备
公开(公告)号：US20160264050A1
公开(公告)日：2016-09-15
申请号：US14810085
申请日：2015-07-27
申请人： RAZMIK KARABED
发明人： RAZMIK KARABED
IPC分类号： B60R1/00 , H04N7/18 , H04N5/232
CPC分类号： B60R1/00 , B60R2001/1253 , B60R2300/605 , B60R2300/70 , B60R2300/8046 , H04N7/181
摘要： A dynamically adjusting surveillance system provides a monitor on one or both sides of a vehicle, each monitor including one or more cameras capturing an image that includes a key region. The monitors can display this key region to a driver of the vehicle. The key region can be updated based on the activities of the driver. For example, the key region can change to provide a desirable view for the driver before, during and after a turn is made. An angular sensor, or a steering wheel position sensor and odometer, can be used to detect the position of the vehicle in the turn to dynamically update the key region displayed to the driver. The key region can be changed at a sufficient frequency so that a gradual and smooth view is provided to the driver during the turn. This view may be in a consistent direction throughout the turn.
摘要翻译：动态调整的监视系统在车辆的一侧或两侧提供监视器，每个监视器包括捕获包括关键区域的图像的一个或多个摄像机。监视器可以将该关键区域显示给车辆的驾驶员。关键区域可以根据驾驶员的活动进行更新。例如，关键区域可以改变以在转弯之前，期间和之后为驾驶员提供期望的视图。可以使用角度传感器或方向盘位置传感器和里程表来轮询车辆的位置，以动态地更新显示给驾驶员的钥匙区域。可以以足够的频率改变关键区域，以便在转弯期间向驾驶员提供逐渐和平滑的视图。这个观点在整个回合中可能处于一致的方向。

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