公开(公告)号：USD858989S1

公开(公告)日：2019-09-10

申请号：US29647027

申请日：2018-05-09

Applicant: Il Han Kim

Designer： Il Han Kim

公开(公告)号：US09920457B2

公开(公告)日：2018-03-20

申请号：US14657577

申请日：2015-03-13

Applicant: Il Han Kim

Inventor： Il Han Kim

IPC: D02G3/28 ,  D02G3/02 ,  D02G3/26 ,  A01K91/00 ,  A61C15/04

CPC classification number: D02G3/28 ,  A01K91/00 ,  A61C15/041 ,  D02G3/02 ,  D02G3/26

Abstract: A method for manufacturing a cord yarn, which has at least one filament strand, includes applying a first twist so that a K1 value has a value of 0.1837763/D1n or below, applying a second twist so that a K2 value has a value between 0.0166819/D2n and 0.3183099/D2n, and applying a third twist so that a K3 value has a value between 0.0278485/D3 and 0.2968288/D3, wherein the twists are applied so that the cord yarn has roundness of 50% or above, and when the filament is a multi filament, so that porosity between strands of the cord yarn is less than 40%.

公开(公告)号：US08966337B2

公开(公告)日：2015-02-24

申请号：US13528191

申请日：2012-06-20

Applicant: Ramanuja Vedantham ,  Gang Xu ,  Kumaran Vijayasankar ,  Anand G. Dabak ,  Tarkesh Pande ,  Il Han Kim ,  Xiaolin Lu

Inventor： Ramanuja Vedantham ,  Gang Xu ,  Kumaran Vijayasankar ,  Anand G. Dabak ,  Tarkesh Pande ,  Il Han Kim ,  Xiaolin Lu

IPC: H03M13/00 ,  G06F11/10 ,  H03M13/09

CPC classification number: G06F11/1004 ,  H03M13/09

Abstract: A method of powerline communications including a first node and at least a second node on a powerline communications (PLC) channel in a PLC network. The first node sends a physical layer (PHY) data frame on the PLC channel including a preamble, a PHY header, a MAC header and a MAC payload. The MAC header includes a Cyclic Redundancy Check (CRC) field (MH-CRC field). The second node receives the data frame, parses the MAC header to reach the MH-CRC field, and performs CRC verification using the MH-CRC field to verify the MAC header. If the CRC verification is successful, (i) the second node parses another portion of the MAC header to identify a destination address of the data frame and (ii) to determine whether the data frame is intended for the second node from the destination address.

Abstract translation: 一种包括PLC网络中电力线通信（PLC）通道上的第一节点和至少第二节点的电力线通信的方法。 第一节点在PLC信道上发送物理层（PHY）数据帧，包括前同步码，PHY报头，MAC报头和MAC有效载荷。 MAC报头包括循环冗余校验（CRC）字段（MH-CRC字段）。 第二节点接收数据帧，解析MAC报头到达MH-CRC字段，并使用MH-CRC字段进行CRC校验，以验证MAC报头。 如果CRC验证成功，则（i）第二节点解析MAC报头的另一部分以识别数据帧的目的地址，以及（ii）从目的地地址确定数据帧是否用于第二节点。

公开(公告)号：US08964786B2

公开(公告)日：2015-02-24

申请号：US13435862

申请日：2012-03-30

Applicant: Kumaran Vijayasankar ,  Shu Du ,  Anand Dabak ,  Badri Varadarajan ,  Il Han Kim ,  Xiaolin Lu

Inventor： Kumaran Vijayasankar ,  Shu Du ,  Anand Dabak ,  Badri Varadarajan ,  Il Han Kim ,  Xiaolin Lu

IPC: H04J4/00 ,  H04B3/54 ,  H04L5/00

CPC classification number: H04B3/542 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/0053 ,  H04L5/0073

Abstract: Systems and methods for designing, using, and/or implementing communications in beacon-enabled networks are described. In various implementations, these systems and methods may be applicable to power line communications (PLC). For example, a method may include identifying one of a plurality of orthogonal superframes. The identified superframe may include beacon slots and contention access period (CAP) slots. The beacon slots may follow a sequence of two or more frequency subbands, and the CAP slots may follow the same sequence of two or more frequency subbands. Also, the sequence of two or more frequency subbands may be distinct from other sequences of two or more frequency subbands followed by other beacon slots and CAP slots within others of the plurality of available superframes. The method may then include communicating with another device using the identified superframe.

Abstract translation: 描述了在启用信标的网络中设计，使用和/或实现通信的系统和方法。 在各种实现中，这些系统和方法可以应用于电力线通信（PLC）。 例如，方法可以包括识别多个正交超帧中的一个。 所识别的超帧可以包括信标时隙和竞争接入时隙（CAP）时隙。 信标时隙可以遵循两个或更多个频率子带的序列，并且CAP时隙可以遵循两个或更多个频率子带的相同序列。 而且，两个或多个频率子带的序列可以与两个或多个频率子带的其他序列不同，后面是多个可用超帧中的其他信标时隙和CAP时隙。 该方法然后可以包括使用所识别的超帧与另一设备进行通信。

公开(公告)号：US08406171B2

公开(公告)日：2013-03-26

申请号：US12534851

申请日：2009-08-03

Applicant: Eko N. Onggosanusi ,  Runhua Chen ,  Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak ,  Charles K. Sestok

Inventor： Eko N. Onggosanusi ,  Runhua Chen ,  Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak ,  Charles K. Sestok

IPC: H04W40/00

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006

Abstract: A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points.

Abstract translation: 协调的多点发射机用于网络MIMO超小区，并且包括配置为提供联合链路处理以协调对应于一组传输点的多点传输的协调单元。 此外，协调多点发射机还包括被配置为使用该组传输点来发送多点传输的传输单元。 此外，协调传输接收机用于网络MIMO超小区，并且包括被配置为接收与一组传输点相对应的多点传输的接收单元。 协调传输接收机还包括处理单元，其被配置为处理来自该组传输点的多点传输。

公开(公告)号：US20120082253A1

公开(公告)日：2012-04-05

申请号：US13175045

申请日：2011-07-01

Applicant: Badri Varadarajan ,  Anand Dabak ,  Il Han Kim ,  Akula Aneesh Reddy

Inventor： Badri Varadarajan ,  Anand Dabak ,  Il Han Kim ,  Akula Aneesh Reddy

IPC: H04B15/00 ,  H04L27/06 ,  H04L27/28

CPC classification number: H04B3/542 ,  H04B2203/5433 ,  H04B2203/5445 ,  H04B2203/5458 ,  H04L5/0042 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0232 ,  H04L27/2647

Abstract: A system and method for communicating in a power line communications (PLC) network using Orthogonal Frequency-Division Multiplexing (OFDM) symbols. Pilot tones are carried by the OFDM symbols according to a predetermined pattern. A receiving device identifies pilot tones on each frequency. A group of previously received pilot tones on a selected frequency are filtered to generate a channel estimate for a tone on the selected frequency in a new symbol. The channel estimates on two different frequencies within an OFDM symbol may be interpolated to determine a channel estimate for a third frequency with the OFDM symbol.

Abstract translation: 一种用于使用正交频分复用（OFDM）符号在电力线通信（PLC）网络中进行通信的系统和方法。 导频音由根据预定模式的OFDM符号承载。 接收设备识别每个频率上的导频音。 对选定频率上的一组以前接收到的导频音进行滤波，以生成新符号中选定频率上的音调的信道估计。 可以内插OFDM符号内的两个不同频率的信道估计，以确定具有OFDM符号的第三频率的信道估计。

公开(公告)号：US20120033722A1

公开(公告)日：2012-02-09

申请号：US13179202

申请日：2011-07-08

Applicant: Badri Varadarajan ,  Anand Dabak ,  Il Han Kim

Inventor： Badri Varadarajan ,  Anand Dabak ,  Il Han Kim

IPC: H04B3/46 ,  H04L27/28 ,  H04B17/00

CPC classification number: H04L27/2666 ,  H04B3/46 ,  H04B3/54 ,  H04B2203/5408 ,  H04B2203/5416 ,  H04B2203/542 ,  H04B2203/5425 ,  H04L1/0002 ,  H04L1/0019 ,  H04L5/0003 ,  H04L27/2607 ,  H04L27/2671

Abstract: Embodiments of the invention provide time-domain link adaptation in power line communications. In one embodiment, the cyclic prefix length and position is adjusted with an OFDM symbol to overlap a periodic impulse noise pulse, thereby allowing the data carried in the symbol to be detected at a receiver. The cyclic prefix may be adjusted to provide a pattern that yields an integer number of OFDM symbols in one zero crossing period. The data rate used for the symbols overlapping the zero-crossing period may be zero or very low. A high data rate may be used for symbols outside the zero-crossing period because those symbols will not be affected by the periodic impulse noise.

Abstract translation: 本发明的实施例提供了电力线通信中的时域链路自适应。 在一个实施例中，循环前缀长度和位置用OFDM符号调整以与周期性脉冲噪声脉冲重叠，从而允许在接收器处检测符号中携带的数据。 可以调整循环前缀以提供在一个零交叉周期中产生整数个OFDM符号的模式。 用于与过零周期重叠的符号的数据速率可以为零或非常低。 由于这些符号不受周期脉冲噪声的影响，因此高数据速率可用于过零周期以外的符号。

公开(公告)号：US20110267177A1

公开(公告)日：2011-11-03

申请号：US13087116

申请日：2011-04-14

Applicant: Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak

Inventor： Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak

IPC: G08C19/16

CPC classification number: H04B3/56 ,  H02J3/00 ,  H04B2203/5483

Abstract: Coupling and interface circuits for powerline modems are disclosed. A powerline modem may be coupled to a low voltage (LV) line or a medium voltage (MV) line using a circuit that is designed to compensate for signal attenuation and loss that is created by the a LV/MV transformer and/or a MV coupler. In one embodiment, separate coupling transformers may be used by the modem for reception and transmission. In other embodiments, a capacitance is switched on the transmission line before the modem transmits to lower the line impedance.

Abstract translation: 公开了用于电力线调制解调器的耦合和接口电路。 电力线调制解调器可以使用被设计为补偿由LV / MV变压器和/或MV产生的信号衰减和损耗的电路而耦合到低电压（LV）线路或中压（MV）线路 耦合器 在一个实施例中，分离的耦合变压器可以由调制解调器用于接收和发送。 在其他实施例中，在调制解调器发送之前，在传输线路上切换电容以降低线路阻抗。

公开(公告)号：US20110252293A1

公开(公告)日：2011-10-13

申请号：US13084348

申请日：2011-04-11

Applicant: Badri N. Varadarajan ,  Anand G. Dabak ,  Il Han Kim

Inventor： Badri N. Varadarajan ,  Anand G. Dabak ,  Il Han Kim

IPC: H03M13/15 ,  G06F11/10

CPC classification number: H03M13/2936 ,  H04L1/0042 ,  H04L1/0057 ,  H04L1/0065

Abstract: Embodiments provide a method for determining the number of parity bytes that are added by a Reed-Solomon encoder. The number of parity bytes are equivalent to the error correcting capability of the Reed-Solomon code. The number of parity bytes is based on the payload length or the information block size used in the Reed-Solomon encoder. Other factors may also be used to make this choice.

Abstract translation: 实施例提供了一种用于确定由Reed-Solomon编码器添加的奇偶校验字节数的方法。 奇偶校验字节的数量等于Reed-Solomon码的纠错能力。 奇偶校验字节的数量基于Reed-Solomon编码器中使用的有效载荷长度或信息块大小。 其他因素也可能用于做出选择。

公开(公告)号：US20100027456A1

公开(公告)日：2010-02-04

申请号：US12534851

申请日：2009-08-03

Applicant: Eko N. Onggosanusi ,  Runhua Chen ,  Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak ,  Charles K. Sestok

Inventor： Eko N. Onggosanusi ,  Runhua Chen ,  Il Han Kim ,  Badri N. Varadarajan ,  Anand G. Dabak ,  Charles K. Sestok

IPC: H04H20/71 ,  H04L27/28

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/063 ,  H04B7/0632 ,  H04B7/0639 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/006

Abstract: A coordinated multipoint transmitter is for use with a network MIMO super-cell and includes a coordination unit configured to provide joint link processing to coordinate a multipoint transmission corresponding to a set of transmission points. Additionally, the coordinated multipoint transmitter also includes a transmission unit configured to transmit the multipoint transmission using the set of transmission points. Additionally, a coordinated transmission receiver is for use with a network MIMO super-cell and includes a reception unit configured to receive a multipoint transmission corresponding to a set of transmission points. The coordinated transmission receiver also includes a processing unit configured to process the multipoint transmission from the set of transmission points.

Abstract translation: 协调的多点发射机用于网络MIMO超小区，并且包括配置为提供联合链路处理以协调对应于一组传输点的多点传输的协调单元。 此外，协调多点发射机还包括被配置为使用该组传输点来发送多点传输的传输单元。 此外，协调传输接收机用于网络MIMO超小区，并且包括被配置为接收与一组传输点相对应的多点传输的接收单元。 协调传输接收机还包括处理单元，其被配置为处理来自该组传输点的多点传输。