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71. 发明授权

US06807157B2 Method and apparatus for coherent demodulation in communication system employing a potentially gated pilot signal 失效
标题翻译：在采用潜在门控导频信号的通信系统中进行相干解调的方法和装置
公开(公告)号：US06807157B2
公开(公告)日：2004-10-19
申请号：US10441592
申请日：2003-05-19
申请人： Tao Chen , Yu-Chuan Lin
发明人： Tao Chen , Yu-Chuan Lin
IPC分类号： H04J116
CPC分类号： H04B1/707 , H04B2201/70703 , H04L2027/0055 , H04L2027/0093
摘要： The present invention is a novel and improved method and system for performing the pilot frequency tracking operation for coherent demodulation in a system employing a gated pilot signal. In particular, the present invention describes a method and apparatus in which two frequency tracking loops operate in parallel. The first frequency tracking loop performs its tracking operation based on the hypothesis that the received pilot is continuous throughout the frame's duration. The second frequency tracking loop performs the tracking operation based on the hypothesis that the received pilot is discontinuous and is only present for a portion of the frame's duration.
摘要翻译：本发明是一种用于在采用门控导频信号的系统中执行用于相干解调的导频跟踪操作的新颖和改进的方法和系统。特别地，本发明描述了一种方法和装置，其中两个频率跟踪环路并行操作。第一个频率跟踪循环基于接收到的导频在整个帧的持续时间内是连续的假设执行其跟踪操作。第二频率跟踪循环基于所接收的导频是不连续的并且仅针对帧的持续时间的一部分存在的假设执行跟踪操作。

72. 发明授权

US06779147B2 Method and apparatus for efficient use of communication resources in a CDMA communication system 失效
公开(公告)号：US06779147B2
公开(公告)日：2004-08-17
申请号：US09965189
申请日：2001-09-25
申请人： Tao Chen
发明人： Tao Chen
IPC分类号： G08C2502
CPC分类号： H04L1/1867 , H04L1/0002 , H04L1/0015 , H04L1/0033
摘要： A method and accompanying apparatus provides for efficient use of communication resources in a CDMA communication system by controlling a transmitting source (300) for transmitting a packet of data over a data frame at a first data rate and at a power level and re-transmitting the packet of data at a second data rate over at least two frames of data at the power level when a receiving destination fails to decode the packet of data. A data rate and power level selector (303) selects the second data rate lower than the first data rate. The data rate and power level selector (303) determines energy per bit of the packet of data at a ratio of the first and second data rates, and selects the second data rate from the ratio such that the determined energy per bit is at a minimum level.

73. 发明授权

US06597922B1 Method and apparatus for efficient candidate frequency search while initiating a handoff in a code division multiple access communication system 有权
标题翻译：用于在码分多址通信系统中发起切换的有效候选频率搜索的方法和装置
公开(公告)号：US06597922B1
公开(公告)日：2003-07-22
申请号：US09312262
申请日：1999-05-14
申请人： Fuyun Ling , Jack Holtzman , Charles E. Wheatley, III , Tao Chen , Edward G. Tiedemann , Gilbert Leung
发明人： Fuyun Ling , Jack Holtzman , Charles E. Wheatley, III , Tao Chen , Edward G. Tiedemann , Gilbert Leung
IPC分类号： H04B700
CPC分类号： H04W52/225 , H04W36/0094 , H04W52/40 , H04W52/42
摘要： A method and apparatus for efficient candidate frequency search while initiating a handoff in a code division multiple access communication system. The method includes when the pilot signal is transmitted by the mobile station that is power controlled to a target receive level, the traffic channel power level is increased relative to the pilot channel to improve receiver performance. An improved feature is that the received pilot received at the base station stays the same while the receiver receives extra energy in the redundant traffic symbols received to enhance the probability of correctly decoding the received frame. The base station detects the absence of the mobile station transmitted signal from the frequency of interest. If the base station is aware of the starting time and duration of the absence, it can focus its detection during this predetermined time period. The performance can be improved if the absence of the signal is spread across two frames at the frame boundary.
摘要翻译：一种用于在码分多址通信系统中发起切换的有效候选频率搜索的方法和装置。该方法包括当导频信号由被功率控制到目标接收电平的移动台发送时，业务信道功率电平相对于导频信道增加，以提高接收机性能。改进的特征是在基站处接收到的接收到的导频保持相同，而接收机在接收到的冗余业务符号中接收到额外的能量以增强正确解码接收帧的概率。基站从感兴趣的频率检测到不存在移动台发送的信号。如果基站知道不存在的起始时间和持续时间，则可以在该预定时间段内集中其检测。如果没有信号在帧边界的两个帧上扩展，则可以提高性能。

74. 发明授权

US06535478B2 Reduced peak-to-average amplitude multichannel link 有权
标题翻译：降低峰均幅度多通道链路
公开(公告)号：US06535478B2
公开(公告)日：2003-03-18
申请号：US09908665
申请日：2001-07-17
申请人： Edward G. Tiedemann, Jr. , Ramin Rezaiifar , Olivier Glauser , Tao Chen
发明人： Edward G. Tiedemann, Jr. , Ramin Rezaiifar , Olivier Glauser , Tao Chen
IPC分类号： H04J1302
CPC分类号： H04B1/707 , H04B2201/70706 , H04J13/004 , H04L27/2621
摘要： A novel and improved method and apparatus for generating a reduced peak amplitude high data rate channel comprised of a set of lower rate channels is described. The set of lower rate channels are phase rotated before being summed and transmitted. The amount of phase rotation is dependent on the number of channels used to form the higher rate channel. In an embodiment where two lower rate channels are used, the in-phase and quadrature-phase components of the two channels are complex multiplied before upconversion with an in-phase and quadrature-phase sinusoids. For a high rate channel comprised of more than two lower rate channels, the in-phase and quadrature-phase component of each channel is upconverted with a set of sinusoids that are phase offset from one another.
摘要翻译：描述了一种用于产生由一组较低速率信道组成的降低峰值幅度的高数据速率信道的新颖和改进的方法和装置。较低速率信道的集合在被相加和发送之前被相位旋转。相位旋转量取决于用于形成较高速率通道的通道数。在使用两个较低速率信道的实施例中，两个信道的同相和正交相位分量在上变频之前与同相和正交相位正弦波相乘。对于由多于两个较低速率信道组成的高速率信道，每个信道的同相和正交相位分量由彼此相位偏移的一组正弦波上变频。

75. 发明授权

US06304755B1 Method and apparatus for performing mobile assisted hard handoff between communication systems 有权
标题翻译：用于在通信系统之间执行移动辅助硬切换的方法和装置
公开(公告)号：US06304755B1
公开(公告)日：2001-10-16
申请号：US09307878
申请日：1999-05-10
申请人： Edward G. Tiedemann, Jr. , Tao Chen , Charles E. Wheatley, III
发明人： Edward G. Tiedemann, Jr. , Tao Chen , Charles E. Wheatley, III
IPC分类号： H04Q738
CPC分类号： H04W36/0094 , H04W36/0061 , H04W36/0066 , H04W36/14 , H04W36/30 , Y02D70/00
摘要： A method and apparatus for performing inter-system hard handoff between communication systems or inter-frequency hard handoff within a CDMA communication system is disclosed. The purpose of this invention is to reduce the probability of dropped calls during inter-system hard handoff. In the event that a hard handoff attempt is unsuccessful, the mobile station will return to the original system with information which the communication system of the present invention uses to assist in the performance of future handoff attempts. Alternatively, with no handoff attempt made, the mobile station monitors the destination system then returns to the original system with information used to assist in subsequent handoff attempts. The information returned from monitoring a CDMA system consists of results of a search for one or more pilots given at offsets in a specific list provided to the mobile station by the base station or a set of offsets based upon a predetermined search algorithm.
摘要翻译：公开了一种用于在CDMA通信系统内进行通信系统之间的系统间硬切换或频间硬切换的方法和装置。本发明的目的是降低在系统间硬切换期间掉话的可能性。在硬切换尝试不成功的情况下，移动台将利用本发明的通信系统用于协助未来切换尝试的执行的信息返回到原始系统。或者，在没有进行切换尝试的情况下，移动台监视目的地系统，然后利用用于辅助随后的切换尝试的信息返回到原始系统。从监视CDMA系统返回的信息包括搜索由基站提供给移动台的特定列表中的偏移处给出的一个或多个导频的结果或基于预定搜索算法的一组偏移量的结果。

76. 发明授权

US6137840A Method and apparatus for performing fast power control in a mobile communication system 失效
标题翻译：用于在移动通信系统中执行快速功率控制的方法和装置
公开(公告)号：US6137840A
公开(公告)日：2000-10-24
申请号：US559386
申请日：1995-11-15
申请人： Edward G. Tiedemann, Jr. , Tao Chen
发明人： Edward G. Tiedemann, Jr. , Tao Chen
IPC分类号： H04B7/26 , H04B7/005 , H04W52/08 , H04W52/22 , H04W52/24 , H04W52/26 , H04W52/28 , H04W52/36 , H04K1/02 , H04L25/03 , H04L25/49
CPC分类号： H04W52/265 , H04W52/08 , H04W52/228 , H04W52/267 , H04W52/28 , H04W52/282 , H04W52/362 , H04W52/245 , H04W52/283 , H04W52/36
摘要： A method and apparatus for controlling transmission power in a mobile communication system is disclosed. The method disclosed provides for a closed-loop power control method for variable rate transmissions. The power of transmissions is varied in accordance with the rate of the frames of data being transmitted. The transmission power between the rates can be a fixed or variable difference.
摘要翻译：公开了一种用于控制移动通信系统中的发射功率的方法和装置。所公开的方法提供了用于可变速率传输的闭环功率控制方法。传输的功率根据正在发送的数据帧的速率而变化。速率之间的传输功率可以是固定的或可变的差。

77. 外观设计

USD916550S1 Electric whisk 有权
公开(公告)号：USD916550S1
公开(公告)日：2021-04-20
申请号：US29747873
申请日：2020-08-26
申请人： Tao Chen
设计人： Tao Chen

78. 发明授权

US09393826B2 Inkjet recording medium, and method of using the same 有权
标题翻译：喷墨记录介质及其使用方法
公开(公告)号：US09393826B2
公开(公告)日：2016-07-19
申请号：US14353617
申请日：2011-10-24
申请人： Xiaoqi Zhou , Tao Chen , Eric L. Burch
发明人： Xiaoqi Zhou , Tao Chen , Eric L. Burch
IPC分类号： B41M5/00 , B41M5/50 , B41M5/52 , B41J2/01 , B41M7/00
CPC分类号： B41M5/502 , B41J2/01 , B41M5/506 , B41M5/508 , B41M5/52 , B41M5/5218 , B41M7/0027 , B41M7/0081 , B41M7/009
摘要： An inkjet recording medium includes a substrate having two opposed surfaces, an ink receiving layer disposed on at least one of the two substrate surfaces, and a porous protective layer disposed on the ink receiving layer. The ink receiving layer receives an ink when printed thereon. The protective layer includes: reactive polymer particles that cross-link upon exposure to microwave radiation; non-reactive polymer particles that coalesce upon exposure to microwave radiation; or a combination of the reactive polymer particles and the non-reactive polymer particles, to form a substantially non-porous protective film that covers the printed ink.
摘要翻译：喷墨记录介质包括具有两个相对表面的基板，设置在两个基板表面中的至少一个上的墨接收层和设置在墨接收层上的多孔保护层。油墨接收层在印刷时接收油墨。保护层包括：暴露于微波辐射时交联的反应性聚合物颗粒; 暴露于微波辐射下聚结的非反应性聚合物颗粒; 或反应性聚合物颗粒和非反应性聚合物颗粒的组合，以形成覆盖印刷油墨的基本上无孔的保护膜。

79. 发明授权

US09193207B2 Recording medium having a protective layer 有权
标题翻译：具有保护层的记录介质
公开(公告)号：US09193207B2
公开(公告)日：2015-11-24
申请号：US14369141
申请日：2012-01-17
申请人： Xi Zeng , Tao Chen , Eric L. Burch
发明人： Xi Zeng , Tao Chen , Eric L. Burch
IPC分类号： B41M5/00 , B41M5/50 , B41M5/52 , B41M7/00
CPC分类号： B41M5/502 , B41M5/506 , B41M5/5218 , B41M5/5236 , B41M5/5254 , B41M5/5263 , B41M7/0027 , B41M2205/40
摘要： A recording medium includes a protective layer and a porous ink receiving layer. The protective layer includes a first binder and a first set of polymeric beads. The first set of polymeric beads has an average volume-based particle size equal to or greater than ten microns. The protective layer has a coat weight equal to or less than three grams per square meter. The recording medium also includes a porous ink receiving layer including a first set of pigments and a second binder.
摘要翻译：记录介质包括保护层和多孔油墨接收层。保护层包括第一粘合剂和第一组聚合物珠粒。第一组聚合物珠具有等于或大于10微米的平均基于体积的粒度。保护层的涂层重量等于或小于3克/平方米。记录介质还包括多孔油墨接收层，其包括第一组颜料和第二粘合剂。

80. 发明授权

US09049666B2 Method and apparatus for providing machine-to-machine communication in a wireless network 有权
标题翻译：用于在无线网络中提供机器到机器通信的方法和装置
公开(公告)号：US09049666B2
公开(公告)日：2015-06-02
申请号：US13634853
申请日：2010-03-25
申请人： Gilles Charbit , Tao Chen , Kari Juhani Rikkinen
发明人： Gilles Charbit , Tao Chen , Kari Juhani Rikkinen
IPC分类号： H04W72/00 , H04W52/14 , H04W16/14 , H04W52/24 , H04W52/34 , H04W52/36 , H04W72/08
CPC分类号： H04W52/143 , H04W4/70 , H04W16/14 , H04W52/146 , H04W52/244 , H04W52/245 , H04W52/246 , H04W52/248 , H04W52/343 , H04W52/367 , H04W72/085
摘要： A method and apparatus are provided that may enable the provision of machine to machine (M2M) communication in a wireless network environment. In this regard, for example, relatively low power devices (specifically referencing low transmission power) such as sensors or other machines in an M2M system may be enabled to communicate with a mobile terminal via a first carrier when the power ratio between the average received machine power and the average downlink received cellular power is below a threshold value and communicate with the mobile terminal via a second carrier if the power ratio exceeds the threshold value. Thus, only one carrier may be needed by devices in such an environment in order to perform M2M communication.
摘要翻译：提供了一种可以在无线网络环境中提供机器到机器（M2M）通信的方法和装置。在这方面，例如，当平均接收机器的功率比之间时，通过M2M系统的诸如传感器或其他机器的相对低功率的设备（具体参考低传输功率）可以经由第一载波与移动终端进行通信功率和平均下行链路接收蜂窝功率低于阈值，并且如果功率比超过阈值，则通过第二载波与移动终端通信。因此，为了执行M2M通信，在这种环境中的设备可能只需要一个载波。

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