公开(公告)号：US08295374B2

公开(公告)日：2012-10-23

申请号：US12326161

申请日：2008-12-02

申请人： Chih-Cheng Kuo ,  Chang-Lung Hsiao ,  Wern-Ho Sheen

发明人： Chih-Cheng Kuo ,  Chang-Lung Hsiao ,  Wern-Ho Sheen

IPC分类号： H04K1/10

CPC分类号： H04L25/0204 ,  H04L5/0021 ,  H04L25/0246

摘要： A signal detecting method and a receiver using the same are provided. The method includes the following steps. A receiving signal vector y is received through a number of channels, wherein the receiving signal vector y corresponds to a transmitting signal vector x transmitted by at least one of the channels. A channel matrix H is determined, wherein the channel matrix H represents at least one of the channels. A factorization matrix D is chosen, wherein D is invertible to make the channel matrix H expressed as H={tilde over (H)}D, and {tilde over (H)} is a corresponding channel matrix. The factorization matrix D is determined to make an expected value of the signal estimate error become smaller. The receiving signal vector y is detected to estimate the transmitting signal vector x according to the corresponding channel matrix {tilde over (H)} and the factorization matrix D.

摘要翻译： 提供了一种信号检测方法和使用该信号检测方法的接收机。 该方法包括以下步骤。 通过多个信道接收接收信号矢量y，其中接收信号矢量y对应于由至少一个信道发送的发射信号矢量x。 确定信道矩阵H，其中信道矩阵H表示至少一个信道。 选择因式分解矩阵D，其中D是可逆的，以使得信道矩阵H表示为H = {t（t），（H）} D，并且（H）}上的波形为相应的信道矩阵。 因子分解矩阵D被确定为使得信号估计误差的期望值变小。 检测接收信号矢量y，以根据相应的信道矩阵（（H）}和分解矩阵D中的波形符号来估计发送信号向量x。

公开(公告)号：US20100002786A1

公开(公告)日：2010-01-07

申请号：US12326161

申请日：2008-12-02

申请人： Chih-Cheng Kuo ,  Chang-Lung Hsiao ,  Wern-Ho Sheen

发明人： Chih-Cheng Kuo ,  Chang-Lung Hsiao ,  Wern-Ho Sheen

IPC分类号： H04L1/02 ,  H04L27/28

CPC分类号： H04L25/0204 ,  H04L5/0021 ,  H04L25/0246

摘要： A signal detecting method and a receiver using the same are provided. The method includes the following steps. A receiving signal vector y is received through a number of channels, wherein the receiving signal vector y corresponds to a transmitting signal vector x transmitted by at least one of the channels. A channel matrix H is determined, wherein the channel matrix H represents at least one of the channels. A factorization matrix D is chosen, wherein D is invertible to make the channel matrix H expressed as H={tilde over (H)}D, and {tilde over (H)} is a corresponding channel matrix. The factorization matrix D is determined to make an expected value of the signal estimate error become smaller. The receiving signal vector y is detected to estimate the transmitting signal vector x according to the corresponding channel matrix {tilde over (H)} and the factorization matrix D.

摘要翻译： 提供了一种信号检测方法和使用该信号检测方法的接收机。 该方法包括以下步骤。 通过多个信道接收接收信号矢量y，其中接收信号矢量y对应于由至少一个信道发送的发射信号矢量x。 确定信道矩阵H，其中信道矩阵H表示至少一个信道。 选择因式分解矩阵D，其中D是可逆的，以使得信道矩阵H表示为H = {t（t），（H）} D，并且（H）}上的波形为相应的信道矩阵。 因子分解矩阵D被确定为使得信号估计误差的期望值变小。 检测接收信号矢量y，以根据相应的信道矩阵（（H）}和分解矩阵D中的波形符号来估计发送信号向量x。

公开(公告)号：US6003134A

公开(公告)日：1999-12-14

申请号：US872

申请日：1997-12-30

申请人： Chih-Cheng Kuo ,  Minwen Lo

发明人： Chih-Cheng Kuo ,  Minwen Lo

IPC分类号： G06F12/14 ,  G07F7/10 ,  H04L9/00

CPC分类号： G07F7/1008 ,  G06F12/1441 ,  G06Q20/341 ,  G06Q20/3576

摘要： Multiple applications upon an IC microprocessor are protected with bi-modal CPU operation, either application or system mode, using an operation flag determining the mode and dependent upon a mode change interrupt which clears all working memory unnecessary to operation in the next mode. Access authorization setting program and data memory boundaries according to the particular custom command in comparison registers is utilized in application initialization. From application mode, data files are accessed only through a system subroutine. Request of an address beyond the territory assigned to the custom command utilized results in a hardware interrupt which clears all working memory and registers unnecessary to forward a status word indicating abnormal termination. Application completion forwards the result with a status word indicating successful completion. Operation results either in successful completion or abnormal termination without possible access of any other application contained upon the IC card (10).

摘要翻译： 通过双模式CPU操作（应用程序或系统模式），使用确定模式的操作标志并依赖于清除所有工作存储器而不需要在下一个模式下运行的模式改变中断来保护IC微处理器上的多个应用。 在应用程序初始化中使用访问授权设置程序和数据存储器边界根据特定的自定义命令在比较寄存器。 从应用程序模式，仅通过系统子程序访问数据文件。 在分配给所使用的自定义命令的领域之外的地址的请求导致硬件中断，其清除所有工作存储器和寄存器，不必转发指示异常终止的状态字。 应用程序完成转发具有指示成功完成的状态字的结果。 操作结果成功完成或异常终止，无需访问IC卡（10）上的任何其他应用程序。

公开(公告)号：US20140177758A1

公开(公告)日：2014-06-26

申请号：US14132372

申请日：2013-12-18

申请人： Ko-Yin Lai ,  Chun-Chi Su ,  Chih-Cheng Kuo ,  Chia-Sheng Peng

发明人： Ko-Yin Lai ,  Chun-Chi Su ,  Chih-Cheng Kuo ,  Chia-Sheng Peng

IPC分类号： H04L7/00 ,  H04L1/00

CPC分类号： H04L7/0016 ,  H04L1/0036 ,  H04L7/0278

摘要： A timing recovery apparatus for compensating a sampling frequency offset of an input signal is provided. The timing recovery apparatus includes a timing error corrector configured to generate an output signal according to the input signal and a calibration signal, a gain controller configured to adjust at least one of a signal edge low-frequency error component and a signal edge high-frequency error component of the output signal and accordingly generate an adjusted signal, a timing error detector configured to generate an error signal according to the adjusted signal, and a calibration signal generator coupled to the timing error detector and the timing error corrector, for generating the calibration signal according to the error signal and outputting the calibration signal to the timing error corrector to compensate the sampling frequency offset of the input signal.

摘要翻译： 提供了用于补偿输入信号的采样频率偏移的定时恢复装置。 定时恢复装置包括定时误差校正器，其被配置为根据输入信号和校准信号生成输出信号;增益控制器，被配置为调整信号边缘低频误差分量和信号边缘高频中的至少一个 输出信号的误差分量，并因此产生经调整的信号;定时误差检测器，被配置为根据调整后的信号产生误差信号;以及校准信号发生器，耦合到定时误差检测器和定时误差校正器，用于产生校准 信号，并将校准信号输出到定时误差校正器，以补偿输入信号的采样频率偏移。

公开(公告)号：US20110210860A1

公开(公告)日：2011-09-01

申请号：US12713194

申请日：2010-02-26

申请人： Chih-Cheng Kuo

发明人： Chih-Cheng Kuo

IPC分类号： G08B21/00

CPC分类号： G08B13/1427

摘要： Alarm control circuitry is provided for a Universal Serial Bus (USB) port connectible device including an alarm generator emitting an audible alarm when powered by internal voltage from a capacitor charged by external voltage from a computer during connection of the device to a computer and actuated with a power off detection circuit in the condition that termination of power from the computer to the device is detected. Provision for an optional base unit with passive RFID in the alarm control circuitry includes an RF transceiver, ID reader, timer and counter causing alarm activation if a ‘reflected’ RF signal is not received in a certain amount of time. An exemplary power off detection circuit outputs an alarm control signal digital logic ‘1’ in alarm generator actuation using an AND gate fed by internal voltage and external voltage reverse logic.

摘要翻译： 提供了用于通用串行总线（USB）端口可连接设备的报警控制电路，其包括报警发生器，当在设备连接到计算机期间由来自计算机的外部电压充电的电容器的内部电压供电时发出声音报警器， 在检测到从计算机到设备的电力终止的情况下的断电检测电路。 在报警控制电路中为无源RFID提供可选的基本单元包括RF收发器，ID读卡器，定时器和计数器，如果在一定时间内未接收到“反射”的RF信号，则引起报警激活。 示例性断电检测电路使用由内部电压和外部电压反向逻辑馈送的与门在报警发生器致动中输出报警控制信号数字逻辑“1”。

公开(公告)号：US07741974B1

公开(公告)日：2010-06-22

申请号：US12647563

申请日：2009-12-28

申请人： Chih-Cheng Kuo

发明人： Chih-Cheng Kuo

IPC分类号： G08B1/08 ,  G08B21/00

CPC分类号： G08B21/24 ,  G06F21/35

摘要： Reminding of the owner of a Universal Serial Bus (USB) port connectible device that the same has been left connected to a USB port of a powered computer is provided by an alarm disposed on a portable base for the device activated by cessation of reception of a limited range radio frequency (RF) signal. Transmission is powered by the computer through the USB port. The portable base has an independent power source for reception/alarm circuitry preferably switched on by separation of a USB port connectible device and/or signalling attachment from the portable base and switched off by physical reunion of the same. Alarm activation while retrieving the USB port connectible device from the USB port of a computer is avoided with an alarm activation delay exceeding in duration a transmission interval minimizing the likelihood of RF signal interference between multiple proximate reminders or other signals of the same RF. An identification (ID) number carried by the RF signal and recognized by a portable base thereby associated with a particular USB port connectible device and/or signalling attachment avoids defeat of alarm activation by reception of another signal of the same RF.

摘要翻译： 提醒与通电串行总线（USB）端口可连接设备的所有者相同的已连接到电源计算机的USB端口由设置在便携式基座上的报警器提供，用于通过停止接收 有限射频（RF）信号。 传输由计算机通过USB端口供电。 便携式基座具有用于接收/报警电路的独立电源，优选地通过将USB端口可连接装置分离和/或从便携式基座分离信号连接并且通过其物理重聚被切断来接通。 在从计算机的USB端口检索USB端口可连接设备的情况下，可以避免报警激活，同时以超过持续时间的报警激活延迟，传输间隔最小化多个邻近提醒或同一RF的其他信号之间的RF信号干扰的可能性。 由RF信号携带并由便携式基座识别并由特定的USB端口可连接设备和/或信令附件相关联的识别（ID）号码避免了通过接收相同RF的另一个信号而失败报警激活。

公开(公告)号：US5754762A

公开(公告)日：1998-05-19

申请号：US782063

申请日：1997-01-13

申请人： Chih-Cheng Kuo ,  Minwen Lo

发明人： Chih-Cheng Kuo ,  Minwen Lo

IPC分类号： G06F12/14 ,  G07F7/10 ,  G06F9/46

CPC分类号： G07F7/1008 ,  G06F12/1441 ,  G06Q20/341 ,  G06Q20/3576

摘要： Multiple applications upon an IC microprocessor are protected with bi-modal CPU operation, either in application mode or system mode, using an operation flag determining the mode and a functional interrupt with each mode change. Direct subroutine calling is replaced by a software interrupt which clears all working memory and registers except those holding parameters including the return address placed in stack. Access authorization utilizing a comparison register containing application and system memory boundaries according to the particular custom command utilized is associated with a mode change interrupt in application initialization. System subroutine running involves two mode change interrupts, from application to system and back, and includes access authorization. Request of an address beyond the territory assigned to the custom command utilized results in a hardware interrupt which clears all working memory and registers in the system mode and except that necessary to forward a status word indicating abnormal termination. Application completion forwards the result with a status word indicating successful completion. Hard-wired bi-modal CPU operation utilizing a mode change interrupt which saves parameters in stack but clears all other registers and working memory and utilizes a comparison register to authorize the system address prior to return to application mode with the return address held in stack ensures that operation in the application authorized by the custom command utilized will result either in successful completion or abnormal termination without possible access of any other application contained upon the IC card.

摘要翻译： 在应用模式或系统模式下，通过双模式CPU操作，使用操作标志确定模式和每个模式更改的功能中断，在IC微处理器上实现多种应用。 直接子程序调用被一个软件中断所替代，该软件中断清除所有工作存储器和寄存器，除了保持包括放置在堆栈中的返回地址的参数之外。 根据使用的特定定制命令，使用包含应用和系统存储器边界的比较寄存器的访问授权与应用初始化中的模式改变中断相关联。 系统子程序运行涉及两种模式切换中断，从应用程序到系统和后端，并包括访问授权。 在分配给所使用的定制命令的领域之外的地址请求导致硬件中断，其清除系统模式中的所有工作存储器和寄存器，除了必须转发指示异常终止的状态字。 应用程序完成转发具有指示成功完成的状态字的结果。 使用模式更改中断的硬接线双模式CPU操作，可以保存堆栈中的参数，但清除所有其他寄存器和工作存储器，并利用比较寄存器在返回应用模式之前授权系统地址，并保留堆栈中的返回地址确保 在所使用的定制命令授权的应用程序中的操作将导致成功完成或异常终止，而不可能访问IC卡上包含的任何其他应用程序。