公开(公告)号：US06538704B1

公开(公告)日：2003-03-25

申请号：US09422444

申请日：1999-10-21

申请人： Mark Lewis Grabb ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

发明人： Mark Lewis Grabb ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

IPC分类号： H04N544

CPC分类号： H04N5/4401 ,  H04N5/211 ,  H04N5/46 ,  H04N21/42638 ,  H04N21/4384

摘要： Reduction in the time required for an Advanced Television Standards Committee (ATSC) digital television tuner to equalize, converge, and acquire a digital television signal suitable for viewing, wherein early model ATSC tuners also include a National Television Standards Committee (NTSC) analog tuner, is achieved by using a microprocessor to control use of the NTSC tuner to scan television channels. A channel measurement module converts the scanned analog signal to a digital signal, and the equalization coefficients for the resultant digital signal are stored in memory. The equalization coefficients stored in memory are then accessed and utilized to tune in new channels on the ATSC tuner. The amount of time necessary for the ATSC tuner to tune in a new channel is thus reduced. When the ATSC tuner is in use, the equalization coefficient data stored in memory are periodically updated.

摘要翻译： 降低高级电视标准委员会（ATSC）数字电视调谐器平衡，收敛和获取适合观看的数字电视信号所需的时间，其中早期模式ATSC调谐器还包括国家电视标准委员会（NTSC）模拟调谐器， 通过使用微处理器来控制NTSC调谐器的使用来扫描电视频道来实现。 通道测量模块将扫描的模拟信号转换为数字信号，并将所得数字信号的均衡系数存储在存储器中。 存储在存储器中的均衡系数然后被访问并用于调谐ATSC调谐器上的新通道。 因此，ATSC调谐器调谐到新频道所需的时间量减少。 当使用ATSC调谐器时，周期性地更新存储在存储器中的均衡系数数据。

公开(公告)号：US06459741B1

公开(公告)日：2002-10-01

申请号：US09422450

申请日：1999-10-21

申请人： Mark Lewis Grabb ,  John Erik Hershey ,  Kenneth Brakeley Welles, II

发明人： Mark Lewis Grabb ,  John Erik Hershey ,  Kenneth Brakeley Welles, II

IPC分类号： H04L512

CPC分类号： H04L27/02 ,  H04L27/34 ,  H04N5/211 ,  H04N5/4401 ,  H04N5/455

摘要： Training sequences designed for N-VSB systems within the embodiment of an N-squared QAM receiver facilitate designing 8-VSB receivers using methodologies of 64-QAM receiver design. A receiver designed using such methodologies converts the received modulation into a signal which can be accepted by circuitry for decoding 64 level quadrature-amplitude modulation (64-QAM) signals. This process provides a better signal to noise ratio reception than the conventional I-channel only decoding circuitry of most 8-VSB receivers. This process also employs training and equalizing algorithms developed for 64-QAM receivers which are superior to equivalent algorithms for 8-VSB receivers. The invention can be generalized to N-VSB conversion into M-QAM where M=N2. Adaptive equalization algorithms for 8-VSB transmissions implemented within the context of the 64 QAM receiver are superior to present single-channel VSP processing receivers. Present 64 QAM equalization strategies can be employed when receiving an 8-VSB waveform, given removal of the pilot tone and time offset, except when employing a training sequence. Modifications to the 8-VSB training sequence specification are employed for operation within a 64 QAM receiver design.

摘要翻译： 在N平方QAM接收机的实施例中为N-VSB系统设计的训练序列有助于使用64-QAM接收机设计的方法来设计8-VSB接收机。 使用这种方法设计的接收机将接收到的调制转换成可由用于解码64级正交幅度调制（64-QAM）信号的电路接受的信号。 该过程提供比大多数8-VSB接收机的常规I信道唯一解码电路更好的信噪比接收。 该过程还采用为64-QAM接收机开发的训练和均衡算法，优于8-VSB接收机的等效算法。 本发明可以推广到N-VSB转换为M-QAM，其中M = N2。 在64QAM接收机的上下文中实现的用于8-VSB传输的自适应均衡算法优于目前的单信道VSP处理接收机。 当使用训练序列时，除了导频和时间偏移之外，当接收到8-VSB波形时，可以采用64个QAM均衡策略。 采用对8-VSB训练序列规范的修改用于在64QAM接收机设计中的操作。

公开(公告)号：US06366199B1

公开(公告)日：2002-04-02

申请号：US09497937

申请日：2000-02-04

申请人： Brock Estel Osborn ,  John Erik Hershey ,  Kenneth Brakeley Welles ,  Russell Robert Irving ,  Nick Andrew Van Stralen

发明人： Brock Estel Osborn ,  John Erik Hershey ,  Kenneth Brakeley Welles ,  Russell Robert Irving ,  Nick Andrew Van Stralen

IPC分类号： B60Q100

CPC分类号： B60H1/00585 ,  B60T17/22 ,  G07C5/008 ,  G07C5/085

摘要： A system is provided for monitoring operating parameters relating to vehicle usage and using the operating parameter information to derive warranty statistical data. In one embodiment, an operating parameter monitoring unit includes a microprocessor and a sensor interface mounted within a housing. The sensor interface includes a number of leads for receiving sensor input signals from sensors that monitor various vehicle operating parameters. The microprocessor receives parameter information via the sensor interface that is indicative of various input sensor signals and stores corresponding parameter information in memory. The stored parameter information can be accessed via a data interface such as a data port or a RF interface.

摘要翻译： 提供一种用于监视与车辆使用相关的操作参数并使用操作参数信息来导出保修统计数据的系统。 在一个实施例中，操作参数监视单元包括安装在壳体内的微处理器和传感器接口。 传感器接口包括许多引线，用于从监测各种车辆操作参数的传感器接收传感器输入信号。 微处理器通过传感器接口接收指示各种输入传感器信号的参数信息，并将相应的参数信息存储在存储器中。 存储的参数信息可以通过诸如数据端口或RF接口的数据接口来访问。

公开(公告)号：US08345526B2

公开(公告)日：2013-01-01

申请号：US12981279

申请日：2010-12-29

申请人： John Erik Hershey ,  Kenneth Brakeley Welles ,  John Anderson Fergus Ross ,  Xiaolei Shi ,  Zhiyuan Ren ,  Victor Petrovich Ostroverkhov

发明人： John Erik Hershey ,  Kenneth Brakeley Welles ,  John Anderson Fergus Ross ,  Xiaolei Shi ,  Zhiyuan Ren ,  Victor Petrovich Ostroverkhov

IPC分类号： G11B7/00

CPC分类号： G11B7/00772 ,  G11B7/24088 ,  G11B2007/00656

摘要： Techniques are provided for increasing storage capacity in a holographic storage system. While typical holographic storage systems involve binary storage for each data position in a holographic disk, present techniques involve storing data such that more than two data levels may be recorded in each data position. In some embodiments, a recording beam directed to the disk may be adjusted to different power levels depending on the data level to be recorded. Furthermore, the recording time at a data position may be adjusted to increase the energy directed to the data position by increasing the amount of time the recording beam is impinged on the data position. Embodiments are suitable for different types of holographic storage, including dye-based medium.

摘要翻译： 提供了用于增加全息存储系统中的存储容量的技术。 虽然典型的全息存储系统涉及用于全息盘中的每个数据位置的二进制存储，但是现有技术涉及存储数据，使得可以在每个数据位置记录两个以上的数据级别。 在一些实施例中，根据待记录的数据级别，可以将指向磁盘的记录光束调整到不同的功率电平。 此外，可以调整数据位置处的记录时间，以通过增加记录光束撞击在数据位置上的时间量来增加指向数据位置的能量。 实施例适用于不同类型的全息存储，包括基于染料的介质。

公开(公告)号：US08331210B2

公开(公告)日：2012-12-11

申请号：US12342794

申请日：2008-12-23

申请人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Nick Andrew Van Stralen ,  Victor Petrovich Ostroverkhov

发明人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Nick Andrew Van Stralen ,  Victor Petrovich Ostroverkhov

IPC分类号： G11B7/00

CPC分类号： G11B7/005 ,  G11B20/10009 ,  G11B20/10287 ,  G11B20/10296 ,  G11B20/1803 ,  G11B20/1833 ,  G11B2020/183 ,  G11B2220/2537

摘要： The present techniques provide methods and systems for reading and processing a data signal read from an optical data disc. In embodiments, an optical reader system may read data bits from a data ring in the disc. The data rings may be concentric, and a beginning of a sequence of data on the data ring may be in substantially the same position as an ending of the sequence. The reader may identify a data ring and begin the read process on the targeted data ring, and may end the read process when the reader reaches the starting point. The data sequence read from the data ring may be decoded to form a bit stream, which may be provided to various output devices. A circular trellis formed from the bit stream may enable the reading of a targeted data sequence without additional tail bits to improve data transmission efficiency.

摘要翻译： 本技术提供了用于读取和处理从光学数据盘读取的数据信号的方法和系统。 在实施例中，光学读取器系统可以从盘中的数据环读取数据位。 数据环可以是同心的，并且数据环上的数据序列的开始可以与序列的结尾基本上在相同的位置。 读取器可以识别数据环并且在目标数据环上开始读取过程，并且当读取器到达起始点时可以结束读取过程。 可以对从数据环读取的数据序列进行解码以形成可被提供给各种输出设备的比特流。 从比特流形成的圆形网格可以使得能够读取目标数据序列而不需要额外的尾比特来提高数据传输效率。

公开(公告)号：US08233368B2

公开(公告)日：2012-07-31

申请号：US12338828

申请日：2008-12-18

申请人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Xiaolei Shi ,  Victor Petrovich Ostroverkhov

发明人： John Anderson Fergus Ross ,  Kenneth Brakeley Welles ,  John Erik Hershey ,  Xiaolei Shi ,  Victor Petrovich Ostroverkhov

IPC分类号： G11B7/00

CPC分类号： G11B7/0065 ,  G11B7/131

摘要： The present techniques provide methods and systems for more reliable reading of optical data disks. In embodiments, a multi-pixel detector that is segmented into multiple areas, or detector segments, may be used to detect a pattern in the light reflected from an optical data disk. The pattern may include light scattered from a single bit that may be under a center detector, as well as light scattered from proximate bits. The detector system may then combine the quantized values from each of the detector segments mathematically to determine the presence or absence of a bit or bits of data. The mathematical combination may also use data that is known about the status of adjacent data bits (such as previously read bits, or bit patterns which are allowed or not allowed by specific data encoding schemes) to improve the accuracy of the bit prediction.

摘要翻译： 本技术提供了用于更可靠地读取光学数据盘的方法和系统。 在实施例中，分割成多个区域或检测器段的多像素检测器可用于检测从光学数据盘反射的光中的图案。 图案可以包括从可能在中心检测器下方的单个位散射的光以及从近似位散射的光。 然后，检测器系统可以在数学上组合来自每个检测器段的量化值以确定数据的位或位的存在或不存在。 数学组合还可以使用已知关于相邻数据位（例如先前读取的位或被特定数据编码方案允许或不允许的位模式）的状态来提高比特预测的精度的数据。

公开(公告)号：US20120170432A1

公开(公告)日：2012-07-05

申请号：US12981270

申请日：2010-12-29

申请人： John Erik Hershey ,  Kenneth Brakeley Welles ,  Xiaolei Shi ,  Zhiyuan Ren ,  Victor Petrovich Ostroverkhov

发明人： John Erik Hershey ,  Kenneth Brakeley Welles ,  Xiaolei Shi ,  Zhiyuan Ren ,  Victor Petrovich Ostroverkhov

IPC分类号： G11B7/00

CPC分类号： G11B7/1263 ,  G11B7/0065 ,  G11B7/24038

摘要： Techniques are provided for controlling the reading of micro-holograms from a holographic disk based on a target data layer to be read in the disk. Reading a target data layer which is relatively deeper in the disk (e.g., farther from an optical head emitting a reading beam) may involve using a higher power reading beam to compensate for power attenuation of the returned reading beam. For example, a power adjustment module may be used to dynamically adjust a reading laser emitting the reading beam, based on the dynamically changing target data layer. By compensating for power attenuation in deeper target data layers, the variance of power in the returned reading beams may be decreased, possibly improving the bit error rate in micro-hologram reading techniques.

摘要翻译： 提供技术用于基于要在盘中读取的目标数据层来控制来自全息盘的微全息图的读取。 读取在盘中相对较深的目标数据层（例如，从发出读取光束的光学头越远）可以涉及使用更高功率的读取光束来补偿返回的读取光束的功率衰减。 例如，功率调整模块可以用于基于动态改变的目标数据层来动态地调整发射读取光束的读取激光器。 通过补偿较深的目标数据层中的功率衰减，返回的读取光束中的功率变化可能会降低，可能会改善微全息图读取技术中的误码率。

公开(公告)号：US07364123B2

公开(公告)日：2008-04-29

申请号：US11005344

申请日：2004-12-06

申请人： Kenneth Brakeley Welles, II ,  John Erik Hershey

发明人： Kenneth Brakeley Welles, II ,  John Erik Hershey

IPC分类号： B61L11/00

CPC分类号： F03B13/00 ,  B61L23/00 ,  H01L41/113

摘要： A data gathering apparatus comprises a power generation device configured to generate power via movement of the rail. The data gathering apparatus further comprises a sensing device configured to receive power from the power generation device and to sense at least one property of the rail, wherein the property of the rail is at least partially defined by a vehicle traveling on the rail.

摘要翻译： 一种数据采集装置，包括配置成通过轨道的移动产生电力的发电装置。 数据采集​​装置还包括感测装置，其被配置为从发电装置接收电力并且感测轨道的至少一个性质，其中轨道的性质至少部分地由在轨道上行驶的车辆限定。

公开(公告)号：US06539062B1

公开(公告)日：2003-03-25

申请号：US09422440

申请日：1999-10-21

申请人： Mark Lewis Grabb ,  John Erik Hershey ,  Kenneth Brakeley Welles, II

发明人： Mark Lewis Grabb ,  John Erik Hershey ,  Kenneth Brakeley Welles, II

IPC分类号： H04L512

CPC分类号： H04N21/4382 ,  H04L27/02 ,  H04N5/4401 ,  H04N21/2383

摘要： An Advanced Television Standards Committee (ATSC)-compliant pilot tone is generated within an 8-VSB (eight level vestigial sideband) transmission in order to enable Quadrature Amplitude Modulation (QAM) receiver designs to more efficiently process the transmitted/received 8-VSB signal. The method and apparatus also efficiently removes the pilot tone before using conventional QAM demodulator equipment for directly demodulating the 8-VSB signal.

摘要翻译： 为了使正交幅度调制（QAM）接收机设计能够更有效地处理发送/接收的8-VSB信号，在8-VSB（八电平残留边带）传输中产生符合先进电视标准委员会（ATSC）标准的导频音 。 在使用常规QAM解调器设备直接解调8-VSB信号之前，该方法和装置还有效地去除导频音。

公开(公告)号：US06292518B1

公开(公告)日：2001-09-18

申请号：US09422446

申请日：1999-10-21

申请人： Mark Lewis Grabb ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

发明人： Mark Lewis Grabb ,  Kenneth Brakeley Welles, II ,  John Erik Hershey

IPC分类号： H03D124

CPC分类号： H04L27/38 ,  H04L27/02

摘要： An N-VSB (vestigial sideband) modulation signal is converted into an M-QAM (quadrature amplitude modulation) signal, where M=N2, by shifting the symbol rate frequency of a received N-VSB modulation signal to center the waveform spectrum about zero Hertz prior to complex demodulation so that data symbols will alternately appear on demodulated I and Q channels. A pilot tone of the received N-VSB modulation signal is removed to eliminate any bias in the both I and Q channels. Symbol timing between I and Q channels is offset, and quadrature amplitude demodulation of the I and Q channel signals generate alternating I and Q channel data symbols. Alternating inversion of the alternating I and Q channel data symbols recovers the N-VSB symbol data.

摘要翻译： N-VSB（残留边带）调制信号通过移位接收的N-VSB调制信号的符号速率频率将波形频谱居中于零，从而转换为M = N M的M-QAM（正交幅度调制）信号 复合解调之前的Hertz，使得数据符号将交替出现在解调的I和Q信道上。 去除所接收的N-VSB调制信号的导频音以消除I和Q信道中的任何偏置。 I和Q通道之间的符号定时偏移，I和Q通道信号的正交幅度解调产生交替的I和Q通道数据符号。 交替的I和Q通道数据符号的交替反转恢复N-VSB符号数据。