公开(公告)号：US08160256B2

公开(公告)日：2012-04-17

申请号：US11835720

申请日：2007-08-08

申请人： Jeong Hyun Yi ,  Jung Hee Cheon ,  Taekyoung Kwon ,  Mun-Kyu Lee ,  Eunah Kim

发明人： Jeong Hyun Yi ,  Jung Hee Cheon ,  Taekyoung Kwon ,  Mun-Kyu Lee ,  Eunah Kim

IPC分类号： H04L9/00

CPC分类号： H04L9/0841 ,  H04L9/3066

摘要： A key calculation method and a shared key generation method, the key calculation method including: generating two keys to perform a key calculation; calculating a first value based on coefficients having an identical coefficient value among coefficients included in each of the two keys; and performing a coordinates operation or an exponentiation operation based on the first value, wherein the calculating of the first value is performed with respect to each of coefficient values included in the two keys, excluding 0.

摘要翻译： 密钥计算方法和共享密钥生成方法，密钥计算方法包括：生成两个密钥进行密钥计算; 基于包括在两个键中的每一个中的系数中的具有相同系数值的系数来计算第一值; 以及基于所述第一值执行坐标运算或求幂运算，其中，除了包括在所述两个键中的每个系数值之外，执行所述第一值的计算。

公开(公告)号：US20080226083A1

公开(公告)日：2008-09-18

申请号：US11835720

申请日：2007-08-08

申请人： Jeong Hyun YI ,  Jung Hee Cheon ,  Taekyoung Kwon ,  Mun-Kyu Lee ,  Enuah Kim

发明人： Jeong Hyun YI ,  Jung Hee Cheon ,  Taekyoung Kwon ,  Mun-Kyu Lee ,  Enuah Kim

IPC分类号： H04L9/08 ,  H04L9/14 ,  H04L9/30

CPC分类号： H04L9/0841 ,  H04L9/3066

摘要： A key calculation method and a shared key generation method, the key calculation method including: generating two keys to perform a key calculation; calculating a first value based on coefficients having an identical coefficient value among coefficients included in each of the two keys; and performing a coordinates operation or an exponentiation operation based on the first value, wherein the calculating of the first value is performed with respect to each of coefficient values included in the two keys, excluding 0.

摘要翻译： 密钥计算方法和共享密钥生成方法，密钥计算方法包括：生成两个密钥进行密钥计算; 基于包括在两个键中的每一个中的系数中的具有相同系数值的系数来计算第一值; 以及基于所述第一值执行坐标运算或求幂运算，其中，除了包括在所述两个键中的每个系数值之外，执行所述第一值的计算。

公开(公告)号：US20130173911A1

公开(公告)日：2013-07-04

申请号：US13703133

申请日：2011-12-28

申请人： Mun-Kyu Lee

发明人： Mun-Kyu Lee

IPC分类号： H04L9/08

CPC分类号： H04L9/08 ,  H04L9/321 ,  H04L2209/42

摘要： Examples are disclosed for transforming a multi-dimensional attribute value for a taste related to an area of interest for a user of a computing device and encrypting or decrypting a ciphertext using the transformed multi-dimensional attribute value in order to securely share data with another computing device.

摘要翻译： 公开了用于转换与计算设备的用户的感兴趣区域相关的味道的多维属性值的示例，并且使用经变换的多维属性值来加密或解密密文，以便安全地与另一计算机共享数据 设备。

公开(公告)号：US09246673B2

公开(公告)日：2016-01-26

申请号：US13703133

申请日：2011-12-28

申请人： Mun-Kyu Lee

发明人： Mun-Kyu Lee

IPC分类号： H04L9/08 ,  H04L9/32

CPC分类号： H04L9/08 ,  H04L9/321 ,  H04L2209/42

摘要： Examples are disclosed for transforming a multi-dimensional attribute value for a taste related to an area of interest for a user of a computing device and encrypting or decrypting a ciphertext using the transformed multi-dimensional attribute value in order to securely share data with another computing device.

摘要翻译： 公开了用于转换与计算设备的用户的感兴趣区域相关的味道的多维属性值的示例，并且使用经变换的多维属性值来加密或解密密文，以便安全地与另一计算机共享数据 设备。

公开(公告)号：US20100165892A1

公开(公告)日：2010-07-01

申请号：US12280110

申请日：2007-02-26

申请人： Young-Jae Cha ,  Mun-Kyu Lee

发明人： Young-Jae Cha ,  Mun-Kyu Lee

IPC分类号： H04J3/00

CPC分类号： H04W88/08 ,  H04L1/22 ,  H04W24/00

摘要： Disclosed is an apparatus and a method for implementing efficient redundancy and an expanded service coverage in a Radio Access Station (RAS) system. In the RAS system, if the main processor unit generates switching control signals in response to the sensed failures on sensing a failure in any of the channel cards and the transceivers or a failure in any of the high-power amplifiers, all supporting M (i.e., the number of FAs equal to or more than three) and K (i.e., the number of sectors equal to or more than three), between the transceivers and the predetermined Time Division Duplex (TDD) switches connected to the antennas, the RF switch unit switches a path based on the generated switching control signals so as to substitute the failed module either by one additional redundancy transceiver per M and K or by one additional redundancy high-power amplifier per M and K. As a result, an efficient N+1 redundancy structure is embodied.

摘要翻译： 公开了一种用于在无线电接入站（RAS）系统中实现有效冗余和扩展业务覆盖的装置和方法。 在RAS系统中，如果主处理器单元响应感测到的任何通道卡和收发器中的故障感测到的故障或任何高功率放大器中的故障而产生开关控制信号，则所有支持M（即 ，等于或大于3的FA的数量）和K（即，等于或大于3的扇区数）在收发器与连接到天线的预定时分双工（TDD）交换机之间，RF开关 单元基于所生成的切换控制信号切换路径，以便通过每M和K的一个额外的冗余收发器或每M和K的一个额外的冗余高功率放大器代替故障模块。结果，有效的N + 1冗余结构体现。

公开(公告)号：US07587046B2

公开(公告)日：2009-09-08

申请号：US11081681

申请日：2005-03-17

申请人： Ku Young Chang ,  Mun Kyu Lee ,  Hang Rok Lee ,  Do Won Hong ,  Ju Sung Kang ,  Hyun Sook Cho ,  Kyo Il Chung

发明人： Ku Young Chang ,  Mun Kyu Lee ,  Hang Rok Lee ,  Do Won Hong ,  Ju Sung Kang ,  Hyun Sook Cho ,  Kyo Il Chung

IPC分类号： H04L9/00 ,  G06F7/58

CPC分类号： H04L9/0861 ,  H04L2209/12

摘要： A method and apparatus for generating a keystream are provided. The method includes: (a) receiving a bitstream comprised of at least 4 bits; (b) selecting at least two bits from the received bitstream; (c) generating an operation value by performing a predetermined bitwise operation on the bits selected in (b); and (d) determining whether to discard the received bitstream or to output the rest of the received bitstream not selected in (b) according to the operation value. The method and apparatus for generating a keystream are expected to be suitable for a ubiquitous computing and network environment and to provide high security or high efficiency.

摘要翻译： 提供了一种用于产生密钥流的方法和装置。 该方法包括：（a）接收由至少4位组成的比特流; （b）从所接收的比特流中选择至少两个比特; （c）通过对（b）中选择的比特执行预定的逐位运算来产生操作值; 以及（d）根据操作值确定丢弃所接收的比特流还是输出未在（b）中选择的接收的比特流的其余部分。 预期用于生成密钥流的方法和装置适用于普遍存在的计算和网络环境并提供高安全性或高效率。

公开(公告)号：US20060098820A1

公开(公告)日：2006-05-11

申请号：US11081681

申请日：2005-03-17

申请人： Ku Young Chang ,  Mun Kyu Lee ,  Hang Lee ,  Do Hong ,  Ju Kang ,  Hyun Cho ,  Kyo Chung

发明人： Ku Young Chang ,  Mun Kyu Lee ,  Hang Lee ,  Do Hong ,  Ju Kang ,  Hyun Cho ,  Kyo Chung

IPC分类号： H04L9/00

CPC分类号： H04L9/0861 ,  H04L2209/12

摘要： A method and apparatus for generating a keystream are provided. The method includes: (a) receiving a bitstream comprised of at least 4 bits; (b) selecting at least two bits from the received bitstream; (c) generating an operation value by performing a predetermined bitwise operation on the bits selected in (b); and (d) determining whether to discard the received bitstream or to output the rest of the received bitstream not selected in (b) according to the operation value. The method and apparatus for generating a keystream are expected to be suitable for a ubiquitous computing and network environment and to provide high security or high efficiency.

公开(公告)号：US07970134B2

公开(公告)日：2011-06-28

申请号：US11889366

申请日：2007-08-13

申请人： Jeong-hyun Yi ,  Jung-hee Cheon ,  Tae-chul Jung ,  Tae-kyoung Kwon ,  Hong-tae Kim ,  Mun-kyu Lee

发明人： Jeong-hyun Yi ,  Jung-hee Cheon ,  Tae-chul Jung ,  Tae-kyoung Kwon ,  Hong-tae Kim ,  Mun-kyu Lee

IPC分类号： H04L9/00 ,  G06F1/02

CPC分类号： G06F7/725 ,  H04L9/0841 ,  H04L9/3013

摘要： A method for generating, operating, and using a sparse w-NAF key for encryption is disclosed. The method for generating a key comprises generating a string of a number of coefficients, in which at most one coefficient, excluding 0, among a consecutive w number of coefficients, corresponds to a positive odd integer equal to or less than 2w (w being a natural number equal to or more than 2); and outputting the generated string as a key. Accordingly, an encryption is executed through an exponential operation or scalar multiplication using a sparse w-NAF key having the scarce coefficients, excluding 0, such that an encryption pace is improved.

摘要翻译： 公开了一种用于生成，操作和使用用于加密的稀疏w-NAF密钥的方法。 用于产生密钥的方法包括生成一系列系数，其中连续的w个系数中除了0以外的至多一个系数对应于等于或小于2w的正奇整数（w为 自然数等于或大于2）; 并输出生成的字符串作为关键字。 因此，通过使用具有稀疏系数的稀疏w-NAF密钥通过指数运算或标量乘法来执行加密，排除0，使得加密步速提高。

公开(公告)号：US20090046607A1

公开(公告)日：2009-02-19

申请号：US12162586

申请日：2007-01-25

申请人： Mun-kyu Lee ,  Chang-Bae Yoon

发明人： Mun-kyu Lee ,  Chang-Bae Yoon

IPC分类号： H04L5/14

CPC分类号： H03G3/3078

摘要： Disclosed is an apparatus and a method for controlling automatic gain in a wireless communication system using a Time Division Duplex (TDD) scheme. The apparatus comprises a power detecting unit for detecting a power of a TDD frame signal on a receive path; an Automatic Gain Control (AGC) synchronizing signal generating unit for generating an AGC synchronizing signal enabled or disabled either during a Down Link (DL) frame or during an Up Link (UL) frame of a TDD frame; an automatic gain calculating unit for calculating a gain control value based on the power detected by the power detecting unit either during the DL frame or during the UL frame of the TDD frame in response to the AGC synchronizing signal; and an AGC unit for performing gain control for the TDD frame signal on the receive path on the basis of the calculated gain control value. Hence, as AGC is performed during only an actual receive frame, the optimized demodulation performance can be maintained.

摘要翻译： 公开了一种使用时分双工（TDD）方案来控制无线通信系统中的自动增益的装置和方法。 该装置包括用于检测接收路径上的TDD帧信号的功率的功率检测单元; 自动增益控制（AGC）同步信号产生单元，用于在下行链路（DL）帧期间或在TDD帧的上行链路（UL）帧期间产生启用或禁用的AGC同步信号; 自动增益计算单元，用于响应于AGC同步信号，在DL帧期间或在TDD帧的UL帧期间，基于由功率检测单元检测到的功率来计算增益控制值; 以及AGC单元，用于基于所计算的增益控制值在接收路径上执行TDD帧信号的增益控制。 因此，由于仅在实际接收帧期间执行AGC，所以可以保持优化的解调性能。

公开(公告)号：US20080130878A1

公开(公告)日：2008-06-05

申请号：US11889366

申请日：2007-08-13

申请人： Jeong-hyun Yi ,  Jung-hee Cheon ,  Tae-chul Jung ,  Tae-Kyoung Kwon ,  Hong-tae Kim ,  Mun-kyu Lee

发明人： Jeong-hyun Yi ,  Jung-hee Cheon ,  Tae-chul Jung ,  Tae-Kyoung Kwon ,  Hong-tae Kim ,  Mun-kyu Lee

IPC分类号： H04L9/28

CPC分类号： G06F7/725 ,  H04L9/0841 ,  H04L9/3013

摘要： A method for generating, operating, and using a sparse w-NAF key for encryption is disclosed. The method for generating a key comprises generating a string of a number of coefficients, in which at most one coefficient, excluding 0, among a consecutive w number of coefficients, corresponds to a positive odd integer equal to or less than 2w (w being a natural number equal to or more than 2); and outputting the generated string as a key. Accordingly, an encryption is executed through an exponential operation or scalar multiplication using a sparse w-NAF key having the scarce coefficients, excluding 0, such that an encryption pace is improved.

摘要翻译： 公开了一种用于生成，操作和使用用于加密的稀疏w-NAF密钥的方法。 用于产生密钥的方法包括生成多个系数的串，其中连续的w个系数中除了0以外的至多一个系数对应于等于或小于2的正奇整数 （w为等于或大于2的自然数）; 并输出生成的字符串作为关键字。 因此，通过使用具有稀疏系数的稀疏w-NAF密钥通过指数运算或标量乘法来执行加密，排除0，使得加密步速提高。