公开(公告)号：US20100226459A1

公开(公告)日：2010-09-09

申请号：US12223854

申请日：2006-12-07

Applicant: Seung-Keun Park ,  Jin-A Park ,  Pyung-Dong Cho ,  Sanghoon Kim

Inventor： Seung-Keun Park ,  Jin-A Park ,  Pyung-Dong Cho ,  Sanghoon Kim

IPC: H04L27/12 ,  H04L27/36

CPC classification number: H04L27/2053

Abstract: An apparatus and method for I/Q modulation are provided. According to the apparatus and method, the symbol error probability performance of a conventional I/Q modulation method can be improved by a maximum of 3dB, and when the same symbol error rate (SER) as that of the conventional method is obtained, the power consumption can be reduced to half that required by the conventional method. The apparatus includes: an oscillator generating a sine wave signal; an IQ sine wave signal generation unit adjusting the phase of the sine wave signal based on I channel data and Q channel data, thereby generating an I channel sine wave signal and a Q channel sine wave signal such that a signal obtained by mixing a first signal and a second signal satisfies the condition that the mixed signal has a phase on a signal constellation diagram corresponding to the I and Q channel data, in which the first signal is obtained by applying the I channel data to the I channel sine wave signal and the second signal obtained by applying the Q channel data to the Q channel sine wave signal; and a transmission signal generation unit generating a transmission signal corresponding to the I and Q channel data, by respectively applying the I channel data and the Q channel data to the I channel sine wave signal and the Q channel sine wave signal.

Abstract translation: 提供了用于I / Q调制的装置和方法。 根据该装置和方法，传统I / Q调制方法的符号误差概率性能可以最大提高3dB，当获得与传统方法相同的符号误码率（SER）时，功率 消耗量可以降低到常规方法所需的一半。 该装置包括：产生正弦波信号的振荡器; IQ正弦波信号产生单元，基于I通道数据和Q通道数据调整正弦波信号的相位，从而产生I通道正弦波信号和Q通道正弦波信号，使得通过混合第一信号 并且第二信号满足混合信号在对应于I和Q信道数据的信号星座图上具有相位的条件，其中通过将I信道数据应用于I信道正弦波信号获得第一信号，并且 通过将Q信道数据应用于Q信道正弦波信号而获得的第二信号; 以及发送信号生成单元，通过分别将I通道数据和Q通道数据分别施加到I通道正弦波信号和Q通道正弦波信号，生成与I通道数据和Q通道数据对应的发送信号。

公开(公告)号：US20100150273A1

公开(公告)日：2010-06-17

申请号：US12548826

申请日：2009-08-27

Applicant: Seung Keun PARK ,  Jin A PARK ,  Heon Jin HONG

Inventor： Seung Keun PARK ,  Jin A PARK ,  Heon Jin HONG

IPC: H04L27/22

CPC classification number: H04L27/2273

Abstract: Disclosed is a binary phase shift key (BPSK) demodulating device using a phase shifter and a method thereof. The BPSK demodulating device includes an I signal generator to generate an in-phase (I) signal from a received BPSK signal, a Q signal generator to generate a quadrature-phase (Q) signal from the received BPSK signal, using a plurality of phase shifters, an oscillator to generate a first signal to separate a baseband signal, and a determining unit to determine a transmission phase angle based on the I signal and the Q signal.

Abstract translation: 公开了使用移相器的二进制相移键（BPSK）解调装置及其方法。 BPSK解调装置包括：I信号发生器，用于从接收的BPSK信号产生同相（I）信号; Q信号发生器，用于从所接收的BPSK信号中产生正交相位（Q）信号，使用多个相位 移位器，产生分离基带信号的第一信号的振荡器，以及基于I信号和Q信号来确定发送相位角的确定单元。

公开(公告)号：US10596039B2

公开(公告)日：2020-03-24

申请号：US15543567

申请日：2015-09-08

Applicant: Jin Young Park ,  Jin A. Park ,  Ki Sung Park ,  In Kyung Park ,  Kee Cheol Park

Inventor： Jin Young Park ,  Jin A. Park ,  Ki Sung Park ,  In Kyung Park ,  Kee Cheol Park

IPC: A61F9/008 ,  A61B3/10

Abstract: A corneal ablation system for correcting vision by using a laser is provided. The corneal ablation system includes: an operation device for creating an integrated corneal ablation plan for correcting a shape and a curvature error of a cornea based on corneal status data; a laser control unit for controlling a laser module according to an ablation position and an ablation shape of the cornea based on the integrated corneal ablation plan transmitted from the operation device; and the laser module for generating a laser and transmitting the laser to an optical unit under control of the laser control unit.

公开(公告)号：US07844011B2

公开(公告)日：2010-11-30

申请号：US11592080

申请日：2006-11-02

Applicant: Seung Keun Park ,  Jin A Park ,  Pyung Dong Cho ,  Hyeong Ho Lee

Inventor： Seung Keun Park ,  Jin A Park ,  Pyung Dong Cho ,  Hyeong Ho Lee

IPC: H04L27/18

CPC classification number: H04L27/2273

Abstract: An apparatus and method for improving a symbol error rate of an M-ary phase shift keying (M-PSK) system having a quadrature error are provided. The apparatus includes: a conversion parameter detector that detects a conversion parameter and converts a symbol decision region using the quadrature error and at least one pair of first received symbols; and a converter & determiner converting a pair of second received symbols using the detected conversion parameter, and determining a transmission symbol according to a symbol of the converted pair of second received symbols. An increase in a symbol error rate due to the quadrature error can be prevented and the quadrature error can be easily estimated.

Abstract translation: 提供了一种用于改善具有正交误差的M相移相键控（M-PSK）系统的符号错误率的装置和方法。 该装置包括：转换参数检测器，其使用正交误差和至少一对第一接收符号检测转换参数并转换符号判定区; 以及转换器和确定器，使用所检测的转换参数来转换一对第二接收符号，以及根据所转换的第二接收符号对的符号确定发送符号。 可以防止由于正交误差引起的符号错​​误率的增加，并且可以容易地估计正交误差。

公开(公告)号：US08358717B2

公开(公告)日：2013-01-22

申请号：US12548826

申请日：2009-08-27

Applicant: Seung Keun Park ,  Jin A Park ,  Heon Jin Hong

Inventor： Seung Keun Park ,  Jin A Park ,  Heon Jin Hong

IPC: H04L27/10

CPC classification number: H04L27/2273

Abstract: Disclosed is a binary phase shift key (BPSK) demodulating device using a phase shifter and a method thereof. The BPSK demodulating device includes an I signal generator to generate an in-phase (I) signal from a received BPSK signal, a Q signal generator to generate a quadrature-phase (Q) signal from the received BPSK signal, using a plurality of phase shifters, an oscillator to generate a first signal to separate a baseband signal, and a determining unit to determine a transmission phase angle based on the I signal and the Q signal.

Abstract translation: 公开了使用移相器的二进制相移键（BPSK）解调装置及其方法。 BPSK解调装置包括：I信号发生器，用于从接收的BPSK信号产生同相（I）信号; Q信号发生器，用于从所接收的BPSK信号中产生正交相位（Q）信号，使用多个相位 移位器，产生分离基带信号的第一信号的振荡器，以及基于I信号和Q信号来确定发送相位角的确定单元。

公开(公告)号：US20180008465A1

公开(公告)日：2018-01-11

申请号：US15543567

申请日：2015-09-08

Applicant: Jin Young Park ,  Jin A Park ,  Ki Sung Park ,  In Kyung Park ,  Kee Cheol Park

Inventor： Jin Young Park ,  Jin A Park ,  Ki Sung Park ,  In Kyung Park ,  Kee Cheol Park

IPC: A61F9/008 ,  A61B3/10

Abstract: A corneal ablation system for correcting vision by using a laser is provided. The corneal ablation system includes: an operation device for creating an integrated corneal ablation plan for correcting a shape and a curvature error of a cornea based on corneal status data; a laser control unit for controlling a laser module according to an ablation position and an ablation shape of the cornea based on the integrated corneal ablation plan transmitted from the operation device; and the laser module for generating a laser and transmitting the laser to an optical unit under control of the laser control unit.

公开(公告)号：US08340165B2

公开(公告)日：2012-12-25

申请号：US12938726

申请日：2010-11-03

Applicant: Jin A Park ,  Seung Keun Park

Inventor： Jin A Park ,  Seung Keun Park

IPC: H04Q1/20

CPC classification number: H04L1/203

Abstract: Provided is a method and system for calculating a bivariate Gaussian Q function using a univariate Gaussian Q function to thereby analyze an error probability of a communication system. A method of calculating an error probability of a communication system may include: receiving encoded communication information from another communication system; restoring information desired to be transmitted by another user by decoding the encoded communication system; and calculating the error probability by analyzing the restored information using a bivariate Gaussian Q function, the error probability indicating a probability that the restored information is different from the information desired to be transmitted by the other user. The calculating may include calculating the bivariate Gaussian Q function using a univariate Gaussian Q function.

Abstract translation: 提供了一种使用单变量高斯Q函数来计算双变量高斯Q函数从而分析通信系统的错误概率的方法和系统。 计算通信系统的错误概率的方法可以包括：从另一个通信系统接收编码的通信信息; 通过解码编码的通信系统来恢复期望由另一用户发送的信息; 并且通过使用双变量高斯Q函数分析恢复的信息来计算误差概率，该误差概率表示恢复的信息与期望由其他用户发送的信息不同的概率。 该计算可以包括使用单变量高斯Q函数来计算双变量高斯Q函数。

公开(公告)号：US20110154126A1

公开(公告)日：2011-06-23

申请号：US12938726

申请日：2010-11-03

Applicant: Jin A. PARK ,  Seung Keun Park

Inventor： Jin A. PARK ,  Seung Keun Park

IPC: G06F11/34

CPC classification number: H04L1/203

Abstract: Provided is a method and system for calculating a bivariate Gaussian Q function using a univariate Gaussian Q function to thereby analyze an error probability of a communication system. A method of calculating an error probability of a communication system may include: receiving encoded communication information from another communication system; restoring information desired to be transmitted by another user by decoding the encoded communication system; and calculating the error probability by analyzing the restored information using a bivariate Gaussian Q function, the error probability indicating a probability that the restored information is different from the information desired to be transmitted by the other user. The calculating may include calculating the bivariate Gaussian Q function using a univariate Gaussian Q function.

Abstract translation: 提供了一种使用单变量高斯Q函数来计算双变量高斯Q函数从而分析通信系统的错误概率的方法和系统。 计算通信系统的错误概率的方法可以包括：从另一个通信系统接收编码的通信信息; 通过解码编码的通信系统来恢复期望由另一用户发送的信息; 并且通过使用双变量高斯Q函数分析恢复的信息来计算误差概率，该误差概率表示恢复的信息与期望由其他用户发送的信息不同的概率。 该计算可以包括使用单变量高斯Q函数来计算双变量高斯Q函数。

公开(公告)号：US07756001B2

公开(公告)日：2010-07-13

申请号：US11607539

申请日：2006-11-30

Applicant: Jin A Park ,  Seung Keun Park ,  Pyung Dong Cho ,  Hyeong Ho Lee

Inventor： Jin A Park ,  Seung Keun Park ,  Pyung Dong Cho ,  Hyeong Ho Lee

IPC: H04J11/00

CPC classification number: H04L27/2275 ,  H04L27/0014

Abstract: An apparatus for and method of deciding symbols in a M-ary phase shift keying (MPSK) system are provided. The apparatus includes: a linear transform unit performing linear transform, to which a phase error is applied, of a received pair of symbols; and a symbol decision unit deciding a transmitted symbol corresponding to the received pair of symbols according to the sign value of the transformed symbol pair. According to the apparatus and method, degradation of a symbol error rate caused by a phase error when an MPSK signal is demodulated can be improved and a phase error can be estimated through a simple method.

Abstract translation: 提供了一种用于在M相移键控（MPSK）系统中确定符号的装置和方法。 该装置包括：线性变换单元，对所接收的一对符号执行向其施加相位误差的线性变换; 以及符号决定单元，根据所述变换的符号对的符号值来决定与所接收的符号对对应的发送符号。 根据该装置和方法，可以提高当MPSK信号被解调时由相位误差引起的符号错​​误率的劣化，并且可以通过简单的方法估计相位误差。