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1. 发明授权

US06327249B1 Data communication device 失效
标题翻译：数据通信设备
公开(公告)号：US06327249B1
公开(公告)日：2001-12-04
申请号：US09369034
申请日：1999-08-04
申请人： Jordan C. Cookman , Ping Dong
发明人： Jordan C. Cookman , Ping Dong
IPC分类号： H04J116
CPC分类号： H04L27/00
摘要： A device for use in a modem configuration that enables the transfer of data from a host signal processor (HSP) to an A/D-D/A converter or CODEC with less data loss, with low noise and that can send data at varying carrier frequencies without changing the size of the buffers. The device further allows for data transfer that is flexible with any given modulation scheme, carrier frequency or baud frequency to conform with the V.34, V90, as well as prior and subsequent recommendations. The device further includes a counter for counting the number of data samples transferred between the CODEC and the HSP and for alerting the HSP to avoid an overflow condition. The counter is further configured to count beyond the physical size of the buffer in order to simplify operation in an overflow condition. A transmit buffer is included for transferring data from the HSP to the CODEC. Communicating with the HSP and the CODEC is another counter that, similar to the first counter, counts the data sent from the HSP to the CODEC. A threshold is established to activate a null signal generator connected to the output of the transmit buffer by a switch to send a null signal to the CODEC when there is no data in the transmit buffer to help maintain the communication link between the CODEC and the data transfer system at lower power. Once data is again available in the transmit buffer, the switch resumes communication between the transmit buffer and the CODEC. Furthermore, the transmit buffer is synchronized with the receive buffer to allow seamless echo cancellation procedures to be performed by the HSP. The echo cancellation performed by the HSP can now be consistent both during normal operation as well as while the receive buffer is in an overflow condition.
摘要翻译：一种用于调制解调器配置的设备，其能够将数据从主机信号处理器（HSP）传输到具有较少数据丢失的A / DD / A转换器或CODEC，具有低噪声并且可以以不同的载波频率发送数据而没有改变缓冲区的大小。该设备还允许使用任何给定的调制方案，载波频率或波特率灵活的数据传输，以符合V.34，V90以及先前和后续的建议。该装置还包括计数器，用于计数在CODEC和HSP之间传送的数据样本的数量，并且用于警告HSP以避免溢出状况。计数器还被配置为超过缓冲器的物理大小，以便简化在溢出状态下的操作。包括发送缓冲器，用于将数据从HSP传送到CODEC。与HSP和CODEC通信是另一个计数器，类似于第一个计数器，计算从HSP发送到CODEC的数据。建立阈值以激活连接到发送缓冲器的输出的空信号发生器，当在发送缓冲器中没有数据以帮助维持CODEC和数据之间的通信链路时，交换机向CODEC发送空信号传输系统功率较低。一旦数据在发送缓冲区中再次可用，交换机将恢复发送缓冲区和CODEC之间的通信。此外，发送缓冲器与接收缓冲器同步，以允许HSP执行无缝回声消除过程。在正常操作期间以及在接收缓冲器处于溢出状态时，HSP执行的回波消除现在可以一致。

2. 发明授权

US07151574B2 Optimized structure for digital separation of composite video signals 失效
标题翻译：复合视频信号数字分离的优化结构
公开(公告)号：US07151574B2
公开(公告)日：2006-12-19
申请号：US10725955
申请日：2003-12-01
申请人： Ping Dong , Jordan C. Cookman
发明人： Ping Dong , Jordan C. Cookman
IPC分类号： H04N9/77
CPC分类号： H04N9/646 , H04N9/78
摘要： A device and method are provided for implementing digital baseband separation of composite video signals with reduced memory requirements. The method and device require that only the composite signal be stored in a large delay element. Multiple quadrature demodulators are employed to generate multiple delayed complex baseband signals. Therefore, no large complex baseband delay element is required.
摘要翻译：提供了一种用于实现具有减少的存储器要求的复合视频信号的数字基带分离的装置和方法。该方法和装置要求仅将复合信号存储在大的延迟元件中。采用多个正交解调器来产生多个延迟的复基带信号。因此，不需要大的复基带延迟元件。

3. 发明授权

US07020674B2 Device and method for performing multiple modulus conversion using inverse modulus multiplication 失效
公开(公告)号：US07020674B2
公开(公告)日：2006-03-28
申请号：US10722728
申请日：2003-11-25
申请人： Jordan C. Cookman , Ping Dong
发明人： Jordan C. Cookman , Ping Dong
IPC分类号： G06F7/38
CPC分类号： G06F7/72 , G06F7/729 , H04L27/00
摘要： A method and device are provided that allow computation of multiple modulus conversion (MMC) outputs using little or no division operations. Instead of division operations, multiplication and logical shift operations are used to produce pseudo-quotients and pseudo-remainders, which may be corrected in a final step to produce correct MMC outputs. This allows for more efficient implementation, since division is typically less efficient than multiplication and logical shift. The method and device operate on MMC inputs that may be partitioned into sub-quotients of varying numbers of digits in any numbering system. The multiplication and logical shift operations are performed on each of the sub-quotients according to a procedure derived from long-division techniques.

4. 发明授权

US07027399B2 Data communication device 失效
公开(公告)号：US07027399B2
公开(公告)日：2006-04-11
申请号：US09927162
申请日：2001-08-09
申请人： Jordan C. Cookman , Ping Dong
发明人： Jordan C. Cookman , Ping Dong
IPC分类号： H04J1/16
CPC分类号： H04L27/00
摘要： A device for use in a modem configuration that enables the transfer of data from a host signal processor (HSP) to an A/D-D/A converter or CODEC with less data loss, with low noise and that can send data at varying carrier frequencies without changing the size of the buffers. The device further allows for data transfer that is flexible with any given modulation scheme, carrier frequency or baud frequency to conform with the V.34, V90, as well as prior and subsequent recommendations. The device further includes a counter for counting the number of data samples transferred between the CODEC and the HSP and for alerting the HSP to avoid an overflow condition. The counter is further configured to count beyond the physical size of the buffer in order to simplify operation in an overflow condition. A transmit buffer is included for transferring data from the HSP to the CODEC. Communicating with the HSP and the CODEC is another counter that, similar to the first counter, counts the data sent from the HSP to the CODEC. A threshold is established to activate a null signal generator connected to the output of the transmit buffer by a switch to send a null signal to the CODEC when there is no data in the transmit buffer to help maintain the communication link between the CODEC and the data transfer system at lower power. Once data is again available in the transmit buffer, the switch resumes communication between the transmit buffer and the CODEC. Furthermore, the transmit buffer is synchronized with the receive buffer to allow seamless echo cancellation procedures to be performed by the HSP. The echo cancellation performed by the HSP can now be consistent both during normal operation as well as while the receive buffer is in an overflow condition.

5. 发明授权

US07277491B2 Data access arrangement using a high frequency transformer for electrical isolation 失效
标题翻译：使用高频变压器进行电气隔离的数据访问安排
公开(公告)号：US07277491B2
公开(公告)日：2007-10-02
申请号：US10146200
申请日：2002-05-14
申请人： Ping Dong , Jordan C. Cookman
发明人： Ping Dong , Jordan C. Cookman
IPC分类号： H04B3/00 , H04L25/00
CPC分类号： H04L25/0268 , H01F2019/085
摘要： An electrical isolation barrier for use in a Data Access Arrangement uses a high frequency (HF) transformer 24 to provide isolation. An input signal, which may be analog or digital, is connected to a modulator. The analog output of the modulator is connected to the input of the HF transformer. The output of the HF transformer is connected to the input of a demodulator. Simple amplitude modulation can be used in the modulator to modulate the input signal to the frequency range of operation of the HF transformer. A simple low pass filter may be incorporated in the demodulator to remove harmonic distortion caused by the HF transformer. The output signal of the demodulator is substantially the same as input signal.
摘要翻译：用于数据访问装置的电隔离屏障使用高频（HF）变压器24来提供隔离。可以是模拟或数字的输入信号连接到调制器。调制器的模拟输出连接到HF变压器的输入。 HF变压器的输出端连接到解调器的输入端。可以在调制器中使用简单的幅度调制来将输入信号调制到HF变压器的工作频率范围。可以在解调器中并入简单的低通滤波器，以消除由HF变压器引起的谐波失真。解调器的输出信号与输入信号基本相同。

6. 发明授权

US06697831B2 Device and method for performing multiple modulus conversion using inverse modulus multiplication 失效
标题翻译：使用反模数乘法执行多模转换的装置和方法
公开(公告)号：US06697831B2
公开(公告)日：2004-02-24
申请号：US10085760
申请日：2002-02-28
申请人： Jordan C. Cookman , Ping Dong
发明人： Jordan C. Cookman , Ping Dong
IPC分类号： G06F738
CPC分类号： G06F7/72 , G06F7/729 , H04L27/00
摘要： A method and device are provided that allow computation of multiple modulus conversion (MMC) outputs using little or no division operations. Instead of division operations, multiplication and logical shift operations are used to produce pseudo-quotients and pseudo-remainders, which may be corrected in a final step to produce correct MMC outputs. This allows for more efficient implementation, since division is typically less efficient than multiplication and logical shift. The method and device operate on MMC inputs that may be partitioned into sub-quotients of varying numbers of digits in any numbering system. The multiplication and logical shift operations are performed on each of the sub-quotients according to a procedure derived from long-division techniques.
摘要翻译：提供了一种允许使用很少或没有分割操作来计算多模转换（MMC）输出的方法和装置。代替分割运算，乘法和逻辑移位运算用于产生伪商和伪余数，这可以在最终步骤中进行校正，以产生正确的MMC输出。这允许更有效的实现，因为除法通常比乘法和逻辑移位效率低。该方法和装置在可以划分成任何编号系统中具有不同数字位数的子商品的MMC输入上操作。根据从长分割技术导出的过程，对每个子商进行乘法和逻辑移位操作。

7. 发明申请

US20100095191A1 METHOD AND APPARATUS FOR DEINTERLEAVING IN A DIGITAL COMMUNICATION SYSTEM 有权
标题翻译：用于数字通信系统中去除的方法和装置
公开(公告)号：US20100095191A1
公开(公告)日：2010-04-15
申请号：US12577125
申请日：2009-10-09
申请人： Sriram Mudulodu , Ping Dong , Jordan Christopher Cookman , Tao Yu
发明人： Sriram Mudulodu , Ping Dong , Jordan Christopher Cookman , Tao Yu
IPC分类号： H04B1/66 , H03M13/27 , G06F11/07
CPC分类号： H04B1/66 , H03M13/2782 , H03M13/6505 , H03M13/6577 , H04L1/0052 , H04L1/0071
摘要： A method and apparatus for deinterleaving in a communication system is disclosed. The method and apparatus deinterleave data units using a data deinterleaver; compressed deinterleave input symbol quality information (SQI) units using a compressed deinterleaver, wherein at least one of the input SQI units deinterleaved by the compressed deinterleaver corresponds to at least one of the plurality of data units deinterleaved by the data deinterleaver; and apply the deinterleaved SQI units to the corresponding deinterleaved data units.
摘要翻译：公开了一种在通信系统中解交织的方法和装置。该方法和装置使用数据解交织器对数据单元进行解交织; 使用压缩解交织器的压缩解交织输入符号质量信息（SQI）单元，其中由所述压缩解交织器解交织的所述输入SQI单元中的至少一个对应于由所述数据解交织器解交错的所述多个数据单元中的至少一个; 并将去交织的SQI单元应用于相应的解交织数据单元。

8. 发明授权

US5268655A Device and method for automatically adjusting a phase-locked loop 失效
标题翻译：自动调节锁相环的装置和方法
公开(公告)号：US5268655A
公开(公告)日：1993-12-07
申请号：US890043
申请日：1992-05-27
申请人： Ping Dong
发明人： Ping Dong
IPC分类号： H03L7/093 , H03L7/107
CPC分类号： H03L7/093 , H03L7/107
摘要： A self-adjusting phase-locked loop (PLL) parameter adjusting device (APAD) (100) and method that automatically adjusts a phase-locked loop to provide tracking ability when and where needed, as opposed to utilizing a PLL adjusting device with preset parameters, thus maintaining minimal possible noise bandwidth. The method utilizes (1) successively integrating the PLL error output signal over a number of samples to provide a plurality of sums, (2) checking a predetermined number of sums and recording and counting the sign of each sum, (3) comparing the counted record to a predetermined threshold value, and (4) automatically adjusting PLL parameter(s) and the sample number in accordance with a predetermined strategy, such that adjusted PLL parameters are provided to the PLL.
摘要翻译：一种自调节锁相环（PLL）参数调节装置（APAD）（100）和方法，可自动调节锁相环，以在需要时和位置提供跟踪能力，而不是利用具有预设参数的PLL调节装置，从而保持最小可能的噪声带宽。该方法利用（1）在多个样本上连续积分PLL误差输出信号以提供多个和，（2）检查预定数量的和，并记录和计数每个和的符号，（3）比较计数记录到预定阈值，以及（4）根据预定策略自动调整PLL参数和样本数，使得调整的PLL参数被提供给PLL。

9. 发明申请

US20130044887A1 AUDIO APPARATUS AND AUDIO CONTROLLER THEREOF 有权
标题翻译：音频设备和音频控制器
公开(公告)号：US20130044887A1
公开(公告)日：2013-02-21
申请号：US13210916
申请日：2011-08-16
申请人： Ping Dong , Qing-Guang Liu , Wan-Chieh Pai
发明人： Ping Dong , Qing-Guang Liu , Wan-Chieh Pai
IPC分类号： H04R29/00 , H04R3/00
CPC分类号： H04R3/00 , H04M1/2475 , H04M1/605 , H04R29/00 , H04R2400/01
摘要： An audio apparatus is provided. The audio apparatus includes at most one electroacoustic transducer; and an audio controller, coupled to the electroacoustic transducer, for actively controlling the electroacoustic transducer to function as a loudspeaker or a microphone, wherein the loudspeaker converts output electrical signals to output sounds, and the microphone converts input sounds to input electrical signals.
摘要翻译：提供一种音频装置。音频装置至多包括一个电声换能器; 以及耦合到电声换能器的音频控制器，用于主动控制电声换能器用作扬声器或麦克风，其中扬声器将输出电信号转换为输出声音，并且麦克风将输入声音转换为输入电信号。

10. 发明授权

US08135058B2 Adaptive known signal canceller 有权
标题翻译：自适应已知信号消除器
公开(公告)号：US08135058B2
公开(公告)日：2012-03-13
申请号：US12249814
申请日：2008-10-10
申请人： Jordan Christopher Cookman , Ping Dong , Tao Yu
发明人： Jordan Christopher Cookman , Ping Dong , Tao Yu
IPC分类号： H04L27/01 , H04B3/20
CPC分类号： H04L25/03159 , H04L25/0212 , H04L25/03057 , H04L27/2657 , H04L2025/03414
摘要： An adaptive known signal canceller comprising of a known signal canceller filter responsive to a known signal including a known portion of a transmitted signal, the known signal canceller filter operative to generate a filtered known signal, and a subtractor unit responsive to an input signal and operative to generate an output signal, the subtractor unit configured to subtract the filtered known signal from the input signal to generate an output signal, such that the known portion of the transmitted signal is substantially removed from the input signal. The adaptive known signal canceller further comprising of a known signal canceller update unit, responsive to a desired signal and an output signal and operative to continually adjust the coefficients of the known signal canceller filter based on the difference between the output signal and the desired signal, so that the filter coefficients substantially reflect the impulse response of a channel.
摘要翻译：一种自适应的已知信号消除器，其包括响应于包括已发射信号的已知信号的已知信号的已知信号消除器滤波器，用于产生已滤波的已知信号的已知信号消除器滤波器以及响应于输入信号和操作的减法器单元为了产生输出信号，减法器单元被配置为从输入信号中减去已滤波的已知信号以产生输出信号，从而基本上从输入信号中去除已发射信号的已知部分。自适应已知信号消除器还包括已知的信号消除器更新单元，响应所需信号和输出信号，并且可操作以基于输出信号和期望信号之间的差连续地调整已知信号消除器滤波器的系数，使得滤波器系数基本上反映了信道的脉冲响应。

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