公开(公告)号：US08300739B2

公开(公告)日：2012-10-30

申请号：US12427458

申请日：2009-04-21

申请人： Dayong Chen

发明人： Dayong Chen

IPC分类号： H04L27/06

CPC分类号： H04L25/03203 ,  H03M13/4146

摘要： A demodulator is provided that functions as a reduced-state equalizer and produces reliable soft bit values. According to an embodiment, soft bit values are generated for a sequence of transmitted symbols using a demodulator by updating an M-state trellis managed by the demodulator responsive to a transition from symbol time n−1 to symbol time n, where M is a function of the number of bits per symbol in the sequence of transmitted symbols. Survivor metrics associated with the M states of the trellis are saved each symbol time so that the demodulator can calculate soft bit values with regard to transitions from symbol time n+D−1 to symbol time n+D. The survivor metrics indicate the probability that each respective state represents the transmitted symbol associated with symbol time n+D−1. The trellis is traced back through to calculate soft bit values for a symbol detected at symbol time n−D based on survivor metrics saved for the M states at symbol time n−D.

摘要翻译： 提供了一种解调器，用作减小均衡器并产生可靠的软比特值。 根据实施例，响应于从符号时间n-1到符号时间n的转变，通过更新由解调器管理的M状态网格，使用解调器为发送符号的序列生成软比特值，其中M是函数 的发送符号序列中每个符号的位数。 与每个符号时间保存与网格的M个状态相关联的幸存者度量，使得解调器可以计算关于从符号时间n + D-1到符号时间n + D的转换的软比特值。 幸存者度量指示每个各自的状态表示与符号时间n + D-1相关联的发送符号的概率。 网格被追溯到通过基于在符号时间n-D处为M个状态保存的幸存度量来计算在符号时间n-D处检测到的符号的软比特值。

公开(公告)号：US07061999B2

公开(公告)日：2006-06-13

申请号：US10075008

申请日：2002-02-13

申请人： Dayong Chen

发明人： Dayong Chen

IPC分类号： H04L27/06

CPC分类号： H04L1/0047 ,  H04L1/0057 ,  H04L1/0059 ,  H04L1/20 ,  H04L1/201

摘要： A received information signal is decoded to obtain the received information and to produce at least one feature of the received information signal. The received information signal is preliminary classified as containing a normal burst or a truncated burst based upon the at least one feature, to obtain a preliminary classification. Cyclic redundancy checking of the received information that is decoded is performed. The received information signal is then further classified as containing a normal burst or a truncated burst based upon the preliminary classification and whether the cyclic redundancy checking is valid, to obtain a further classification. The received information signal may be still further classified as containing a normal burst or a truncated burst based upon the further classification and at least one transition rule for normal bursts and truncated bursts between the received information signal and a previously received information signal.

摘要翻译： 对接收到的信息信号进行解码以获得所接收的信息并产生所接收的信息信号的至少一个特征。 所接收的信息信号基于至少一个特征被初步分类为包含正常突发或截断突发，以获得初步分类。 执行被解码的接收信息的循环冗余校验。 接收到的信息信号随后根据初步分类进一步分类为包含正常突发或截断突发，以及循环冗余校验是否有效，以获得进一步的分类。 所接收的信息信号可以进一步分类为包含基于进一步分类的正常突发或截断突发，以及用于接收的信息信号和先前接收到的信息信号之间的正常突发和截断突发的至少一个转换规则。

公开(公告)号：US08024633B2

公开(公告)日：2011-09-20

申请号：US11746679

申请日：2007-05-10

申请人： Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

发明人： Abdulrauf Hafeez ,  Dayong Chen ,  Dennis Hui

IPC分类号： G08C25/02

CPC分类号： H04L1/1845 ,  H04L1/1812

摘要： In a wireless communication network using point-to-point or point-to-multipoint communications, this disclosure teaches the use of combined packets for retransmission and corresponding soft value processing at a receiver, wherein combined packets are formed as the logical combination of two or more previously transmitted packets and allow the receiver to use a single combined packet to correct one or more failed packets. For example, with the combined packet retransmission and corresponding soft value receiver processing as taught herein, a given receiver can use a given combined packet to correct bit errors in all (failed) packets comprising the combined packet as long as the bit errors in a failed packet do not overlap (or align) with bit errors in the other failed packets comprising the combined packet.

摘要翻译： 在使用点对点或点对多点通信的无线通信网络中，本公开教导了在接收机处使用组合分组进行重传和对应的软值处理，其中组合分组被形成为两个或 更先前传输的分组，并允许接收机使用单个组合分组来校正一个或多个故障分组。 例如，通过组合的分组重传和如本文所教导的相应的软值接收器处理，给定的接收机可以使用给定的组合分组来校正包括组合分组的所有（失败的）分组中的比特错误，只要失败的比特错误 分组不与包括组合分组的其他故障分组中的比特错误重叠（或对齐）。

公开(公告)号：US20060156094A1

公开(公告)日：2006-07-13

申请号：US11016643

申请日：2004-12-17

申请人： Dayong Chen

发明人： Dayong Chen

IPC分类号： G11C29/00

CPC分类号： H03M13/6502 ,  H03M13/2703 ,  H03M13/2767

摘要： A method of mapping input bit positions in an input sequence to output bit positions in an output sequence uses compressed mapping sequences stored in memory derived from a predetermined mapping function. The mapping function is decompressed into periodic component functions that are used to generate the compressed mapping sequences. Each compressed mapping sequence comprises a plurality of partial mapping values that represent one period of a corresponding component function or group of component functions. Partial mapping values are selected from each compressed mapping sequence based on a bit index of the current input bit and summed or otherwise combined to get an output index.

公开(公告)号：US06956836B2

公开(公告)日：2005-10-18

申请号：US09859753

申请日：2001-05-17

申请人： Dayong Chen ,  John Diachina

发明人： Dayong Chen ,  John Diachina

IPC分类号： H04B7/26 ,  H04L12/56 ,  H04W72/04 ,  H04W88/08 ,  H04W88/12 ,  H04W92/12 ,  H04L5/22 ,  H04B7/212 ,  H04J3/16 ,  H04J4/00

CPC分类号： H04B7/2621 ,  H04B7/2659 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W88/08 ,  H04W88/12 ,  H04W92/12

摘要： Asymmetric frequency allocation for packet channels in a wireless network. Asymmetric radio spectrum allocation along with multiple duplex carrier types within a spectrum allocated in uplink and downlink blocks of frequencies provides greater capacity for downlink traffic. Each uplink block of frequencies has multiple associated downlink blocks of frequencies. When the invention is employed for packet channel operations in a TDMA-based network, the base station system can assign timeslots to the mobile station on an asymmetric carrier. The base station system also assigns a flag value to the mobile station for use in packet channel operations. In the case of GSM, the flag is an uplink state flag.

摘要翻译： 无线网络中分组信道的不对称频率分配。 在上行链路和下行链路频段中分配的频谱内的不对称无线电频谱分配以及多个双工载波类型为下行链路业务量提供了更大的容量。 每个上行链路频率块具有多个相关联的下行链路频率块。 当本发明用于基于TDMA的网络中的分组信道操作时，基站系统可以在非对称载波上为移动台分配时隙。 基站系统还向移动台分配标志值以用于分组信道操作。 在GSM的情况下，标志是上行链路状态标志。

公开(公告)号：US06925059B2

公开(公告)日：2005-08-02

申请号：US09852332

申请日：2001-05-09

申请人： Evin Feli ,  Leonard Lee ,  Dayong Chen

发明人： Evin Feli ,  Leonard Lee ,  Dayong Chen

IPC分类号： H04L12/56 ,  H04W28/08 ,  H04W28/18 ,  H04W48/06 ,  H04L12/26

CPC分类号： H04W28/18 ,  H04L47/125 ,  H04L47/14 ,  H04W28/08 ,  H04W48/06

摘要： Method and apparatus for distributing traffic in a wireless packet data network. A capacity flag which is sent on each RF data channel within a cell in a wireless packet data network is toggled between an asserted and an unasserted state according to the period of a timer. Transceiver terminals will only register for a channel while that channel's capacity flag is unasserted; therefore, transceiver terminals register with the various RF channels in a cell in a distributed fashion over time. The invention can be implemented by a computer program product or logic, or a combination of the two installed at the base station for a cell within a wireless data network such as a CDPD network.

摘要翻译： 在无线分组数据网络中分配业务的方法和装置。 根据定时器的周期，在无线分组数据网络中的小区内的每个RF数据信道上发送的容量标志在被断言状态和未通过状态之间切换。 收发器终端只能注册一个信道，而该信道的容量标志是无效的; 因此，收发器终端随着时间的推移以分布式方式与小区中的各种RF信道进行注册。 本发明可以通过计算机程序产品或逻辑来实现，或者在基站处安装的两个组合来实现诸如CDPD网络之类的无线数据网络内的小区。

公开(公告)号：US06658619B1

公开(公告)日：2003-12-02

申请号：US09679286

申请日：2000-10-06

申请人： Dayong Chen

发明人： Dayong Chen

IPC分类号： G08C2502

CPC分类号： H04L1/1614 ,  H04L1/1832

摘要： A communication device includes a processing unit and a transmitter. The processing unit specifies a number of data blocks in an ARQ receive window and divides the receive window into a number of sectors, each sector having a portion of the number of data blocks in the receive window. The processing unit further receives data blocks within the receive window transmitted from a transmitting communication device and constructs an acknowledgement bitmap for each sector in the receive window. The acknowledgement bitmap includes a sector acknowledgement bit. The transmitter transmits the acknowledgement bitmap for each sector to the transmitting communication device.

摘要翻译： 通信设备包括处理单元和发射机。 处理单元指定ARQ接收窗口中的多个数据块，并将接收窗口划分成多个扇区，每个扇区具有接收窗口中数据块数量的一部分。 处理单元还接收从发送通信设备发送的接收窗口内的数据块，并为接收窗口中的每个扇区构造确认位图。 确认位图包括扇区确认位。 发射机向发射通信设备发送每个扇区的确认位图。

公开(公告)号：US20190167857A1

公开(公告)日：2019-06-06

申请号：US16206596

申请日：2018-11-30

申请人： Richard B. Kaner ,  Dayong Chen ,  Brian T. McVerry ,  Ethan Rao ,  Alexandra L. Polasko

发明人： Richard B. Kaner ,  Dayong Chen ,  Brian T. McVerry ,  Ethan Rao ,  Alexandra L. Polasko

IPC分类号： A61L31/10 ,  A61L17/14 ,  A61L27/34 ,  A61L29/08 ,  A61L27/54 ,  A61L29/16 ,  A61L31/16 ,  C09D5/00 ,  C08F220/38 ,  C09D133/14 ,  C09D183/04 ,  C08J3/24

摘要： Disclosed herein are compositions to use in biofouling-resistant coatings, biofouling-resistant coatings, methods of making biofouling-resistant coatings, biofouling-resistant devices, and methods of making biofouling-resistant devices.

公开(公告)号：US08107560B2

公开(公告)日：2012-01-31

申请号：US10844155

申请日：2004-05-12

申请人： Dayong Chen ,  Dennis Hui

发明人： Dayong Chen ,  Dennis Hui

IPC分类号： H04L27/22

CPC分类号： H04L27/0012

摘要： A method and apparatus blindly detects a received signal's modulation type characterizing an impairment component of the received signal for each postulated modulation type by determining spatial correlations between In-phase and Quadrature components of the received signal. The blind detection circuit then detects the modulation type based on the characterized impairment component. A metric generator generates a postulation metric for each postulated modulation type based on the characterized impairment component. After evaluating the postulation metrics, an evaluation circuit identifies the postulated modulation type having the best postulation metric as the modulation type of the received signal. According to an exemplary embodiment, the blind detection circuit determines a whitened noise estimate for each postulated modulation type and generates the postulation metrics based on the whitened noise estimate to reduce interference effects in the postulation metrics.

摘要翻译： 一种方法和装置通过确定接收信号的同相和正交分量之间的空间相关性，盲目检测每个假设调制类型表征接收信号的损伤分量的接收信号的调制类型。 然后，盲检测电路基于所表征的损伤分量检测调制类型。 度量发生器基于特征的损伤分量为每个假设的调制类型生成假设度量。 在评估假设度量之后，评估电路将具有最佳假设度量的假定调制类型识别为接收信号的调制类型。 根据示例性实施例，盲检测电路确定每个假设调制类型的白化噪声估计，并且基于白化噪声估计生成假设度量，以减少假设度量中的干扰影响。

公开(公告)号：US07880903B2

公开(公告)日：2011-02-01

申请号：US11427237

申请日：2006-06-28

申请人： Dayong Chen

发明人： Dayong Chen

IPC分类号： G06F3/12 ,  G03G21/02 ,  G03G15/00

CPC分类号： G03G21/02

摘要： An image forming device including a printer having a plurality of operation modes sets beforehand the number of pages printed by the printer to be counted in a division counter or a division undefined counter for each operation mode of the printer. The image forming device counts, in the division counter corresponding to the division to which the user belongs who has requested the printing, the number of the pages printed in the operation mode in which the number of the pages is set to be counted in the division counter, and counts, in the division undefined counter, the number of the pages printed in the operation mode in which the number of the pages is set to be counted in the division undefined counter.

摘要翻译： 包括具有多个操作模式的打印机的图像形成装置预先设定打印机在打印机的每个操作模式下分割计数器打印的打印机页数或分割未定义计数器。 图像形成装置在与分配计数器对应的用户所属的分割计数器中对已经请求打印的打印数进行计数，以分割页数被设定为在分割中被计数的操作模式中打印的页数 计数器和计数器，在分区未定义的计数器中，在分割未定义的计数器中将页数设置为计数的操作模式中打印的页数。