公开(公告)号：US20100321432A1

公开(公告)日：2010-12-23

申请号：US12489915

申请日：2009-06-23

申请人： Andrew W. HAYS ,  Richard P. Germain ,  Joseph A. Degroot ,  Peter J. Nystrom ,  Jun Ma

发明人： Andrew W. HAYS ,  Richard P. Germain ,  Joseph A. Degroot ,  Peter J. Nystrom ,  Jun Ma

IPC分类号： B41J29/38

CPC分类号： B41J2/04598 ,  B41J2/0458 ,  B41J2/04596 ,  B41J2/14056 ,  B41J2/14064

摘要： Systems and methods of ejecting ink drops from an inkjet printer are disclosed. The systems and methods can include a printhead with one or more actuators with associated nozzles and membranes A voltage waveform can be applied to the actuators to fill the actuators with a volume of ink and eject the ink through the nozzles as ink drops. The voltage waveform can have associated pre-fill voltage to fill the actuator with ink and a firing voltage to eject the ink. The actuator membranes can have multi-height dimples to protect the membranes from contacting electrodes and reduce the electric field.

摘要翻译： 公开了从喷墨打印机喷射墨滴的系统和方法。 系统和方法可以包括具有一个或多个具有相关联的喷嘴和膜的致动器的打印头。电压波形可以施加到致动器以用一定量的墨水填充致动器，并且通过喷嘴将墨水喷射通过喷嘴。 电压波形可以具有相关联的预充电电压以用墨水填充致动器和用于喷射墨水的点火电压。 致动器膜可以具有多个高度的凹坑，以保护膜不接触电极并减少电场。

公开(公告)号：US07852613B2

公开(公告)日：2010-12-14

申请号：US11841812

申请日：2007-08-20

申请人： Jun Ma ,  Alan Fischer ,  Chunming Niu ,  Lein Ngaw

发明人： Jun Ma ,  Alan Fischer ,  Chunming Niu ,  Lein Ngaw

IPC分类号： H01G9/058 ,  H01G4/005 ,  H01G4/32

CPC分类号： H01C17/06586 ,  C09D5/24 ,  C09D11/52 ,  H01B1/24 ,  H01C17/0652 ,  H01G11/24 ,  H01G11/38 ,  Y02E60/13 ,  Y10S977/742 ,  Y10T428/25 ,  Y10T428/29 ,  Y10T428/30

摘要： The present invention relates to electroconductive inks and methods of making and using the same. The electroconductive inks include carbon fibrils and a liquid vehicle. The electroconductive ink may further include a polymeric binder. The electroconductive filler used is carbon fibrils which may be oxidized. The ink has rheological properties similar to that of commercially available electroconductive inks that use carbon black as their filler. The ink can be screen-printed, slot-coated, sprayed, brushed or dipped onto a wide variety of substrates to form an electroconductive coating.

摘要翻译： 本发明涉及导电油墨及其制造和使用方法。 导电油墨包括碳纤维和液体载体。 导电油墨还可以包括聚合物粘合剂。 所用的导电填料是可被氧化的碳原子纤维。 油墨具有类似于使用炭黑作为填料的市售导电油墨的流变性能。 油墨可以丝网印刷，槽涂，喷涂，刷涂或浸在各种基材上以形成导电涂层。

公开(公告)号：USD628070S1

公开(公告)日：2010-11-30

申请号：US29343841

申请日：2009-09-21

申请人： Jun Ma ,  Qian Li ,  Xin-Yue He ,  Wan-Ling Shih

设计人： Jun Ma ,  Qian Li ,  Xin-Yue He ,  Wan-Ling Shih

公开(公告)号：USD627649S1

公开(公告)日：2010-11-23

申请号：US29345859

申请日：2009-10-23

申请人： Xin-Yue He ,  Qian Li ,  Jun Ma ,  Wan-Ling Shih

设计人： Xin-Yue He ,  Qian Li ,  Jun Ma ,  Wan-Ling Shih

公开(公告)号：USD627647S1

公开(公告)日：2010-11-23

申请号：US29343840

申请日：2009-09-21

申请人： Qian Li ,  Jun Ma ,  Xin-Yue He ,  Wan-Ling Shih

设计人： Qian Li ,  Jun Ma ,  Xin-Yue He ,  Wan-Ling Shih

公开(公告)号：US20090322827A1

公开(公告)日：2009-12-31

申请号：US12164349

申请日：2008-06-30

申请人： Joseph A. DEGROOT ,  Peter Michael Gulvin ,  Jun Ma

发明人： Joseph A. DEGROOT ,  Peter Michael Gulvin ,  Jun Ma

IPC分类号： B41J2/14 ,  H01L29/84 ,  H01L21/00

CPC分类号： B41J2/14314 ,  B41J2/16 ,  B41J2/1626 ,  B41J2/1639 ,  B81B3/0051 ,  B81B2201/052 ,  B81B2203/0109 ,  B81B2203/04 ,  B81B2203/053

摘要： The present application is directed to electrostatic actuators, and methods of making electrostatic actuators. In one embodiment, an electrostatic actuator of the present application can include an electrode layer and a mechanical member. The electrode layer can include a removed portion that is free of a landing pad. The mechanical member can be positioned in proximity to the electrode layer so as to provide a gap therebetween. The mechanical member can further include a dimple structure protruding out into the gap and aligned with the removed portion of the electrode layer. When in operation, the mechanical member can be capable of deflecting toward the electrode layer. The electrostatic actuator can be used in a fluid drop ejector for ink jet recording or printing devices.

摘要翻译： 本申请涉及静电致动器以及制造静电致动器的方法。 在一个实施例中，本申请的静电致动器可以包括电极层和机械构件。 电极层可以包括没有着陆垫的去除部分。 机械构件可以位于电极层附近，以便在它们之间提供间隙。 机械构件还可以包括突出到间隙中并与电极层的去除部分对准的凹坑结构。 当操作时，机械构件能够朝向电极层偏转。 静电致动器可用于喷墨记录或打印装置的液滴喷射器。

公开(公告)号：US20090286471A1

公开(公告)日：2009-11-19

申请号：US12120332

申请日：2008-05-14

申请人： Jun Ma ,  Jinyun Zhang ,  Philip V. Orlik

发明人： Jun Ma ,  Jinyun Zhang ,  Philip V. Orlik

IPC分类号： H04B1/62

CPC分类号： H04W52/46 ,  H04B7/2606 ,  H04W52/225 ,  H04W52/242

摘要： Disclosed is a method for static power allocation to source and relay stations in a two-hop amplify-and-forward (AF) relay multi-input-multi-output (MIMO) network including of a source station (SS), a relay station (RS), and a destination station (DS) each transmitting signals using multiple antennas. The method performs power allocation to the SS and the RS according to the path loss, or equivalently, according to a distances, between the SS and the RS and the RS and DS. The transmit power of each transmit antenna at the SS and the power amplifying gain of the RS are determined from the power allocation outputs.

摘要翻译： 本发明公开了一种在双跳放大转发（AF）中继多输入多输出（MIMO）网络中对源和中继站进行静态功率分配的方法，包括源站（SS），中继站 （RS）和每个使用多个天线发送信号的目的地站（DS）。 该方法根据路径损耗对SS和RS进行功率分配，或等效地根据SS与RS之间的距离以及RS和DS进行功率分配。 根据功率分配输出确定SS处的每个发射天线的发射功率和RS的功率放大增益。

公开(公告)号：US20090268850A1

公开(公告)日：2009-10-29

申请号：US12107998

申请日：2008-04-23

申请人： Yongru Gu ,  Jun Ma

发明人： Yongru Gu ,  Jun Ma

IPC分类号： H04L27/22

CPC分类号： H04L27/2675 ,  H04L27/2659 ,  H04L2027/0034 ,  H04L2027/0053 ,  H04L2027/0067

摘要： A method of estimating a coarse frequency offset in a receiver includes providing at least one candidate frequency offset in Orthogonal Frequency-Division Multiplexing (OFDM) symbols having transmission and multiplexing configuration control (TMCC) bins and auxiliary channel (AC) bins, modulating the TMCC bins and AC bins using differential binary phase shift keying (DBPSK) modulation, estimating a phase difference between a first symbol and a second symbol for the candidate frequency offset of the TMCC and AC bins to obtain a resulting phase difference, correcting the resulting phase difference based on a difference between the candidate frequency offset and a Fast Fourier Transform (FFT) center bin to obtain a corrected phase difference, mapping the corrected phase difference to numeric numbers, and adding the numeric numbers for the candidate frequency offset to obtain a summation result. The numeric numbers correspond to at least one of +1 or −1.

摘要翻译： 一种估计接收机中的粗频偏移的方法，包括在具有传输和复用配置控制（TMCC）机箱和辅助信道（AC）机箱的正交频分复用（OFDM）符号中提供至少一个候选频偏，调制TMCC 使用差分二进制相移键控（DBPSK）调制，估计TMCC和AC信号的候选频率偏移的第一符号和第二符号之间的相位差以获得所得到的相位差，校正所得到的相位差 基于候选频率偏移和快速傅立叶变换（FFT）中心仓之间的差异来获得校正的相位差，将校正的相位差映射到数字，并且将候选频率偏移的数字加上以获得求和结果 。 数字对应于+1或-1中的至少一个。

公开(公告)号：US20090262842A1

公开(公告)日：2009-10-22

申请号：US12105300

申请日：2008-04-18

申请人： Yongru Gu ,  Jun Ma

发明人： Yongru Gu ,  Jun Ma

IPC分类号： H04L27/28

CPC分类号： H04L27/2662 ,  H04L27/2676 ,  H04L27/2695

摘要： Identifying a trigger point of at least one OFDM decoder includes correlating a first time-domain sample of the at least one OFDM symbol with a second time-domain sample of the at least one OFDM symbol, processing the first time-domain sample and the second time-domain sample in the first moving average filter to determine a channel impulse response, comparing at least one correlation value of a first biggest path in the channel impulse response and a second biggest path in the channel impulse response, and determining a channel length of the channel impulse response based on a time duration of the channel impulse response. The OFDM decoder includes a first moving average filter and a second moving average filter.

摘要翻译： 识别至少一个OFDM解码器的触发点包括将至少一个OFDM符号的第一时域样本与至少一个OFDM符号的第二时域样本进行相关，处理第一时域样本和第二时域采样 在第一移动平均滤波器中的时域采样以确定信道脉冲响应，将信道脉冲响应中的第一最大路径的至少一个相关值与信道脉冲响应中的第二最大路径进行比较，以及确定信道脉冲响应的信道长度 基于信道脉冲响应的持续时间的信道脉冲响应。 OFDM解码器包括第一移动平均滤波器和第二移动平均滤波器。

公开(公告)号：US07599441B2

公开(公告)日：2009-10-06

申请号：US11471187

申请日：2006-06-20

申请人： Jun Ma ,  Nabil Yousef

发明人： Jun Ma ,  Nabil Yousef

IPC分类号： H04L5/12 ,  H04L23/02 ,  H04L27/06

CPC分类号： H04L25/067 ,  H04L1/0041 ,  H04L1/0052 ,  H04L1/0054 ,  H04L1/006 ,  H04L1/0071 ,  H04L27/34 ,  H04L27/38

摘要： A DVB-H bit-interleave coded modulation/demodulation system and method includes a convolutional encoder; an interleaver operatively connected to the convolutional encoder; a quadrature amplitude modulation (QAM) mapper operatively connected to the interleaver; a channel component operatively connected to the QAM mapper; a QAM demapper operatively connected to the channel component; a de-interleaver operatively connected to the QAM demapper; and a Viterbi decoder operatively connected to the de-interleaver. Preferably, the interleaver comprises a bit-wise interleaver and a symbol-wise interleaver operatively connected to the bit-wise interleaver. Preferably, the de-interleaver comprises a bit-wise de-interleaver; and a symbol-wise de-interleaver operatively connected to the bit-wise de-interleaver. The de-interleaver may be adapted to decode a soft decision metric for any of a QPSK, 16QAM, and 64QAM modulation. The de-interleaver may be adapted to decode a soft decision metric computation comprising a log-likelihood ratio soft decision metric of a binary bit stream of a signal.

摘要翻译： DVB-H位交织编码调制/解调系统和方法包括卷积编码器; 可操作地连接到卷积编码器的交织器; 可操作地连接到交织器的正交幅度调制（QAM）映射器; 可操作地连接到QAM映射器的信道分量; 可操作地连接到信道分量的QAM解映射器; 可操作地连接到QAM解映射器的解交织器; 以及可操作地连接到解交织器的维特比解码器。 优选地，交织器包括可操作地连接到逐位交织器的逐位交织器和符号方式的交织器。 优选地，解交织器包括位逐去交织器; 以及可操作地连接到逐位解交织器的符号式解交织器。 解交织器可以适于解码用于QPSK，16QAM和64QAM调制中的任何一个的软判决度量。 解交织器可以适于解码包括信号的二进制比特流的对数似然比软判决度量的软判决度量计算。