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1. 发明授权

US5218196A Light curtain system with system and watchdog microcontrollers 失效
标题翻译：光幕系统与系统和看门狗微控制器
公开(公告)号：US5218196A
公开(公告)日：1993-06-08
申请号：US755566
申请日：1991-09-05
申请人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
发明人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
IPC分类号： F16P3/14 , G01V8/20 , G06F11/00 , G06F11/16 , G06F11/26 , G08B13/183 , H01H47/00
CPC分类号： H01H47/002 , F16P3/14 , F16P3/144 , G01V8/20 , G06F11/261 , G08B13/183 , G06F11/0757
摘要： A photodetection system and related circuitry designed to sense the intrusion of an opaque object in a light plane. Upon sensing the intrusion, the system quickly initiates a machine-stopping sequence prior to the opaque object coming into contact with the machine while that machine is operating. The system comprises a SYSTEM microcontroller and a WATCHDOG microcontroller, both of which operate an output control device of the light curtain switch of the invention, wherein the output control device comprises a plurality of electromechanical relays. Both microcontrollers also perform system hardware and software integrity checks. Furthermore, the WATCHDOG microcontroller evaluates the performance of the SYSTEM microcontroller by transmitting a false intrusion signal to a photosource, determining whether the false signal has been detected, and then verifying that the SYSTEM microcontroller has initiated the machine-stopping sequence. The machine-stopping sequence may be overridden by the WATCHDOG microcontroller, or it may be initiated if the false signal is not detected. The combination of electronic, mechanical, and optical modules of the present invention provides improved reliability and accuracy. In addition, the SYSTEM microcontroller and the WATCHDOG microcontroller are designed so as to reduce the system's sensitivity to spurious signals.
摘要翻译：光检测系统和相关电路，设计用于感测光平面中不透明物体的侵入。在感测入侵时，系统在该机器正在运行之前，在不透明物体与机器接触之前，快速启动机器停止序列。该系统包括SYSTEM微控制器和WATCHDOG微控制器，两者都操作本发明的光幕开关的输出控制装置，其中输出控制装置包括多个机电继电器。两个微控制器还执行系统硬件和软件完整性检查。此外，WATCHDOG微控制器通过向光源发送假入侵信号，确定是否检测到伪信号，然后验证SYSTEM微控制器已启动停机序列来评估SYSTEM微控制器的性能。机器停止序列可能被WATCHDOG微控制器覆盖，或者如果未检测到假信号，则可能启动停机序列。本发明的电子，机械和光学模块的组合提供了改进的可靠性和精度。此外，SYSTEM微控制器和WATCHDOG微控制器被设计为降低系统对寄生信号的灵敏度。

2. 发明授权

US5559664A Electromechanical relay system 失效
标题翻译：机电继电器系统
公开(公告)号：US5559664A
公开(公告)日：1996-09-24
申请号：US73096
申请日：1993-06-07
申请人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
发明人： James Dogul , Sandip Sarkar , Frederick Thomson , Robert Thomson
IPC分类号： F16P3/14 , G01V8/20 , G06F11/00 , G06F11/16 , G06F11/26 , G08B13/183 , H01H47/00 , G01V9/04
CPC分类号： H01H47/002 , F16P3/14 , F16P3/144 , G01V8/20 , G06F11/261 , G08B13/183 , G06F11/0757
摘要： A photodetection system and related circuitry designed to sense the intrusion of an opaque object in a light plane. Upon sensing the intrusion, the system quickly initiates a machine-stopping sequence prior to the opaque object coming into contact with the machine while that machine is operating. The system comprises a SYSTEM microcontroller and a WATCHDOG microcontroller, both of which operate an output control device of the light curtain switch of the invention, wherein the output control device comprises a plurality of electromechanical relays. Both microcontrollers also perform system hardware and software integrity checks. Furthermore, the WATCHDOG microcontroller evaluates the performance of the SYSTEM microcontroller by transmitting a false intrusion signal to a photosource, determining whether the false signal has been detected, and then verifying that the SYSTEM microcontroller has initiated the machine-stopping sequence. The machine-stopping sequence may be overridden by the WATCHDOG microcontroller, or it may be initiated if the false signal is not detected. The combination of electronic, mechanical, and optical modules of the present invention provides improved reliability and accuracy. In addition, the SYSTEM microcontroller and the WATCHDOG microcontroller are designed so as to reduce the system's sensitivity to spurious signals.
摘要翻译：光检测系统和相关电路，设计用于感测光平面中不透明物体的侵入。在感测入侵时，系统在该机器正在运行之前，在不透明物体与机器接触之前，快速启动机器停止序列。该系统包括SYSTEM微控制器和WATCHDOG微控制器，两者都操作本发明的光幕开关的输出控制装置，其中输出控制装置包括多个机电继电器。两个微控制器还执行系统硬件和软件完整性检查。此外，WATCHDOG微控制器通过向光源发送假入侵信号，确定是否检测到伪信号，然后验证SYSTEM微控制器已启动停机序列来评估SYSTEM微控制器的性能。机器停止序列可能被WATCHDOG微控制器覆盖，或者如果未检测到假信号，则可能启动停机序列。本发明的电子，机械和光学模块的组合提供了改进的可靠性和精度。此外，SYSTEM微控制器和WATCHDOG微控制器被设计为降低系统对寄生信号的灵敏度。

3. 发明授权

US08681749B2 Control resource mapping for a wireless communication system 有权
标题翻译：控制无线通信系统的资源映射
公开(公告)号：US08681749B2
公开(公告)日：2014-03-25
申请号：US11968642
申请日：2008-01-02
申请人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
发明人： Aamod Khandekar , Alexei Gorokhov , Naga Bhushan , Sandip Sarkar , Ravi Palanki
IPC分类号： H04B7/216 , H04W72/04 , H04B1/713 , H04W72/08 , H04L5/00 , H04B7/26
CPC分类号： H04W72/04 , H04B1/713 , H04B7/2621 , H04L1/1692 , H04L5/0053 , H04W52/146 , H04W52/16 , H04W52/243 , H04W52/247 , H04W52/362 , H04W52/60 , H04W72/08
摘要： Techniques for sending control information in a wireless communication system are described. A control segment may include L≧1 tiles, and each tile may include a number of transmission units. A number of control resources may be defined and mapped to the transmission units for the control segment. For symmetric mapping, multiple sets of S≧1 control resources may be formed, and each batch of L consecutive sets of S control resources may be mapped to S transmission units at the same location in the L tiles. For localized mapping, S>1, and each set of S control resources may be mapped to a cluster of S adjacent transmission units in one tile. For distributed mapping, S=1, and each control resource may be mapped to one transmission unit in one tile. For diversity, each control resource may be mapped to multiple (e.g., three) transmission units in at least one tile.
摘要翻译：描述用于在无线通信系统中发送控制信息的技术。控制段可以包括L≥1瓦片，并且每个瓦片可以包括多个传输单元。可以将多个控制资源定义并映射到控制段的传输单元。对于对称映射，可以形成多组S≥1个控制资源，并且每L批连续的S个控制资源组可以被映射到L个瓦片中相同位置处的S个传输单元。对于局部映射，S> 1，并且每组S个控制资源可以被映射到一个瓦片中的S个相邻传输单元的簇。对于分布式映射，S = 1，并且每个控制资源可以映射到一个瓦片中的一个传输单元。对于分集，每个控制资源可以映射到至少一个瓦片中的多个（例如，三个）传输单元。

4. 发明授权

US08634333B2 Bundling of ACK information in a wireless communication system 有权
标题翻译：在无线通信系统中捆绑ACK信息
公开(公告)号：US08634333B2
公开(公告)日：2014-01-21
申请号：US12435717
申请日：2009-05-05
申请人： Sandip Sarkar
发明人： Sandip Sarkar
IPC分类号： H04B7/005
CPC分类号： H04L1/1621 , H04L1/16 , H04L1/18
摘要： Techniques for bundling acknowledgement (ACK) information in a wireless communication system are described. In one design, a user equipment (UE) may receive multiple codewords in at least one downlink subframe. The UE may decode the multiple codewords and determine an ACK or a negative acknowledgement (NACK) for each codeword based on decoding result. The UE may bundle the ACKs and NACKs for the multiple codewords to obtain bundled ACK information. In one design, the UE may generate (i) a bundled ACK if ACKs are obtained for all codewords or (ii) a bundled NACK if a NACK is obtained for any codeword. The UE may send the bundled ACK information as feedback for the multiple codewords. The UE may receive retransmissions of the multiple codewords if a bundled NACK is sent and may receive new codewords if a bundled ACK is sent.
摘要翻译：描述用于在无线通信系统中捆绑确认（ACK）信息的技术。在一种设计中，用户设备（UE）可以在至少一个下行链路子帧中接收多个码字。 UE可以解码多个码字，并且基于解码结果确定每个码字的ACK或否定确认（NACK）。 UE可以捆绑多个码字的ACK和NACK以获得捆绑的ACK信息。在一种设计中，如果针对所有码字获得ACK，则UE可以生成（i）捆绑ACK，或者如果为任何码字获得NACK，则（ii）绑定的NACK。 UE可以发送捆绑的ACK信息作为多个码字的反馈。如果发送了捆绑的NACK，则UE可以接收多个码字的重传，并且如果发送了捆绑的ACK，则可以接收新的码字。

5. 发明授权

US08391249B2 Code division multiplexing commands on a code division multiplexed channel 有权
标题翻译：码分复用信道上的码分复用命令
公开(公告)号：US08391249B2
公开(公告)日：2013-03-05
申请号：US10611333
申请日：2003-06-30
申请人： Joseph P. Odenwalder , Sandip Sarkar
发明人： Joseph P. Odenwalder , Sandip Sarkar
IPC分类号： H04B7/216
CPC分类号： H04J13/0003 , H04J13/0048
摘要： An apparatus includes a first encoder for receiving a plurality of symbol streams for respective ones of a plurality of mobile stations and encoding each of the symbol streams with one of a plurality of covering sequences to form a plurality of covered sequences. The apparatus further includes a summer for summing the plurality of covered sequences to form a first Code Division Multiplexed (CDM) signal. In addition, the apparatus includes a second encoder for covering the first CDM signal with a covering sequence to form a first covered CDM signal. A system and method for multiplexing plurality of symbol streams are also provided.
摘要翻译：一种装置包括：第一编码器，用于接收多个移动站中的各个移动站的多个符号流，并用多个覆盖序列之一对每个符号流进行编码以形成多个被覆盖的序列。该装置还包括用于对多个覆盖序列进行求和以形成第一码分多路复用（CDM）信号的加法器。另外，该装置包括第二编码器，用于用覆盖序列覆盖第一CDM信号以形成第一被覆盖的CDM信号。还提供了一种用于复用多个符号流的系统和方法。

6. 发明授权

US08107441B2 Method and apparatus for generating control information for packet data 有权
标题翻译：用于生成分组数据的控制信息的方法和装置
公开(公告)号：US08107441B2
公开(公告)日：2012-01-31
申请号：US10961611
申请日：2004-10-08
申请人： Joseph P. Odenwalder , Yongbin Wei , Edward G. Tiedemann, Jr. , Stein A. Lundby , David Puig-Oses , Sandip Sarkar
发明人： Joseph P. Odenwalder , Yongbin Wei , Edward G. Tiedemann, Jr. , Stein A. Lundby , David Puig-Oses , Sandip Sarkar
IPC分类号： H04B7/216
CPC分类号： H04W28/18 , H04L1/0038 , H04L1/004 , H04L1/0059 , H04L1/0061 , H04L1/0068 , H04L1/0071 , H04L1/08 , H04L1/1607 , H04W72/1252 , H04W74/04
摘要： Systems and techniques for communications wherein a data packet is transmitted over at least one time slot from a transmission site, a value is computed from an initial value and information, the initial value being a function of the number of time slots of the data packet transmission, the value and the information is transmitted from the transmission site, the transmitted value and the information is received at a receiving site, the value from the received information is recalculated, and the number of time slots of the data packet transmission is determined from the calculated and recalculated values.
摘要翻译：用于通信的系统和技术，其中通过至少一个时隙从传输站点发送数据分组，从初始值和信息计算值，初始值是数据分组传输的时隙数量的函数，从发送站点发送该值和信息，在接收站点接收发送的值和信息，重新计算来自接收到的信息的值，并根据该数据包发送的时隙数确定计算和重新计算的值。

7. 发明申请

US20110280333A1 DEDICATED REFERENCE SIGNAL 有权
标题翻译：专用参考信号
公开(公告)号：US20110280333A1
公开(公告)日：2011-11-17
申请号：US12780774
申请日：2010-05-14
申请人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
发明人： Lin Yang , Sandip Sarkar , Durga Prasad Malladi , Dung N. Doan
IPC分类号： H04L27/00
CPC分类号： H04L5/003
摘要： Systems and methodologies are described that facilitate utilizing dedicated reference signal in connection with downlink transmissions. A dedicated reference signal can comprise a set of dedicated reference symbols, which are inserted into a resource block in accordance with a specification provided by a dedicated reference signal structure. The dedicated reference signal structure can vary according to a rank utilized in the downlink transmission.
摘要翻译：描述了有助于利用与下行链路传输相关联的专用参考信号的系统和方法。专用参考信号可以包括一组专用参考符号，它们根据由专用参考信号结构提供的规范插入到资源块中。专用参考信号结构可以根据下行链路传输中使用的等级而变化。

8. 发明申请

US20110222627A1 METHOD AND APPARATUS FOR CODEBOOK EXCHANGE IN A MULTIPLE ACCESS WIRELESS COMMUNICATION SYSTEM 有权
标题翻译：多种无线通信系统中的代码交换方法与装置
公开(公告)号：US20110222627A1
公开(公告)日：2011-09-15
申请号：US13115044
申请日：2011-05-24
申请人： Rajat Prakash , Sandip Sarkar
发明人： Rajat Prakash , Sandip Sarkar
IPC分类号： H04L27/00
CPC分类号： H04L25/03343 , H04B7/0417 , H04B7/063 , H04B7/0634 , H04B7/0639 , H04L2025/03426
摘要： Methods and apparatus are disclosed for generating and exchanging codebooks in a multiple access wireless communication system. The codebooks include a plurality of preferred precoding matrices.
摘要翻译：公开了用于在多址无线通信系统中生成和交换码本的方法和装置。码本包括多个优选的预编码矩阵。

9. 发明授权

US08014265B2 Eigen-beamforming for wireless communication systems 有权
标题翻译：无线通信系统的特征波束成形
公开(公告)号：US08014265B2
公开(公告)日：2011-09-06
申请号：US12189483
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04W4/00
CPC分类号： H04B7/0417 , H04B7/0434 , H04B7/063 , H04B7/0632 , H04L5/14 , H04L25/0204 , H04L25/0228 , H04L25/0242 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending multiple-input multiple-output (MIMO) transmissions in wireless communication systems are described. In one design, a transmitter sends a first reference signal via a first link, e.g., a cell-specific reference signal via the downlink. The transmitter receives channel quality indicator (CQI) information determined by a receiver based on the first reference signal. The transmitter also receives a second reference signal from the receiver via a second link, e.g., a sounding reference signal via the uplink. The transmitter obtains at least one MIMO channel matrix for the first link based on the second reference signal. The transmitter determines at least one precoding matrix based on the at least one MIMO channel matrix, e.g., in accordance with ideal eigen-beamforming or pseudo eigen-beamforming. The transmitter then sends a data transmission to the receiver based on the at least one precoding matrix and the CQI information.
摘要翻译：描述了在无线通信系统中发送多输入多输出（MIMO）传输的技术。在一种设计中，发射机经由第一链路发送第一参考信号，例如经由下行链路的小区特定参考信号。发射机基于第一参考信号接收由接收机确定的信道质量指示符（CQI）信息。发射机还经由第二链路从接收机接收第二参考信号，例如经由上行链路的探测参考信号。发射机基于第二参考信号获得用于第一链路的至少一个MIMO信道矩阵。发射机基于至少一个MIMO信道矩阵来确定至少一个预编码矩阵，例如，根据理想的本征波束形成或伪特征波束形成。然后，发射机基于至少一个预编码矩阵和CQI信息向接收机发送数据传输。

10. 发明授权

US08009617B2 Beamforming of control information in a wireless communication system 有权
标题翻译：无线通信系统中控制信息的波束成形
公开(公告)号：US08009617B2
公开(公告)日：2011-08-30
申请号：US12189548
申请日：2008-08-11
申请人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
发明人： Sandip Sarkar , Byoung-Hoon Kim , Durga Prasad Malladi , Juan Montojo
IPC分类号： H04W4/00
CPC分类号： H04B7/043 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L5/0023 , H04L5/0053 , H04L25/03343 , H04L2025/03426 , H04L2025/03802
摘要： Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).
摘要翻译：描述用于在无线通信系统中发送业务数据和控制信息的技术。在一种设计中，发射机（例如，节点B或UE）可以基于预编码矩阵来执行波束成形以在M层上发送业务数据，其中M可以是一个或更多个。发射机还可以基于用于业务数据的相同预编码矩阵来执行波束成形以发送多达M个层的控制信息。发射机可以在第一物理信道上发送波束形成的业务数据，并且可以在第二物理信道上发送波束形成的控制信息。发射机可以使用时分复用（TDM）或频分复用（FDM）来复用波束形成的业务数据和波束形成的控制信息。

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