公开(公告)号：USRE44621E1

公开(公告)日：2013-12-03

申请号：US13162389

申请日：2011-06-16

申请人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

发明人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

IPC分类号： H04J1/00

摘要： Provided is a method and apparatus for transmitting data based on OFDM (Orthogonal Frequency Division Multiplexing). The method includes: forming a plurality of packets suitable for a selected transmission mode from data input to a transmitter; determining a transfer rate of the data; when the data transfer rate is determined to be low and synchronous connection oriented link should be maintained, dividing each of the plurality of packets into a plurality of sub-packets; and transmitting the divided sub-packets, wherein when the divided sub-packets are transmitted, a power supply duration of the transmitter is reduced by using a DPM (dynamic power management) or fine state control unit.

公开(公告)号：US07861135B2

公开(公告)日：2010-12-28

申请号：US11701956

申请日：2007-02-02

申请人： Byung Jo Kim ,  Seok Bong Hyun ,  Seong Su Park ,  Jae Bum Kim ,  Hyun Cheol Park ,  Jong Hyun Seo

发明人： Byung Jo Kim ,  Seok Bong Hyun ,  Seong Su Park ,  Jae Bum Kim ,  Hyun Cheol Park ,  Jong Hyun Seo

IPC分类号： H03M13/00

CPC分类号： H03M13/2975 ,  H03M13/6502 ,  H03M13/658

摘要： Provided is a turbo decoder with a variable scaling factor. The decoding convergence degree of the turbo decoder is evaluated using a sign difference ratio (SDR) value, the iterative-decoding number is limited, a variable scaling factor is calculated and applied in each decoding convergence area based on the SDR value, and the average number of decoding iterations is reduced.

摘要翻译： 提供具有可变比例因子的turbo解码器。 使用符号差分比（SDR）值对Turbo解码器的解码收敛度进行评价，对迭代解码数进行限制，根据SDR值计算并应用于每个解码收敛区域的可变比例因子，平均 解码迭代次数减少。

公开(公告)号：US07548564B2

公开(公告)日：2009-06-16

申请号：US11299184

申请日：2005-12-09

申请人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

发明人： Seok Bong Hyun ,  Byung Jo Kim ,  Seong Su Park

IPC分类号： H04J1/00

CPC分类号： H04L1/0007 ,  H04L1/0017 ,  H04L1/009

摘要： Provided is a method and apparatus for transmitting data based on OFDM (Orthogonal Frequency Division Multiplexing). The method includes: forming a plurality of packets suitable for a selected transmission mode from data input to a transmitter; determining a transfer rate of the data; when the data transfer rate is determined to be low and synchronous connection oriented link should be maintained, dividing each of the plurality of packets into a plurality of sub-packets; and transmitting the divided sub-packets, wherein when the divided sub-packets are transmitted, a power supply duration of the transmitter is reduced by using a DPM (dynamic power management) or fine state control unit.

摘要翻译： 提供了一种用于基于OFDM（正交频分复用）发送数据的方法和装置。 该方法包括：从数据输入到发射机，形成适合所选传输模式的多个分组; 确定数据的传输速率; 当数据传输速率被确定为低并且应当保持同步连接定向链路时，将多个分组中的每一个分成多个子分组; 并且发送分割的子分组，其中当分配的分组被发送时，通过使用DPM（动态功率管理）或精细状态控制单元来减少发射机的供电持续时间。

公开(公告)号：US07542521B2

公开(公告)日：2009-06-02

申请号：US11226045

申请日：2005-09-14

申请人： Byoung Gun Choi ,  Seok Bong Hyun ,  Geum Young Tak ,  Hee Tae Lee ,  Seong-Su Park ,  Chul Soon Park

发明人： Byoung Gun Choi ,  Seok Bong Hyun ,  Geum Young Tak ,  Hee Tae Lee ,  Seong-Su Park ,  Chul Soon Park

IPC分类号： H03K9/00

CPC分类号： H03D7/1441 ,  H03D7/1491 ,  H03D7/165 ,  H03D2200/0084

摘要： Provided is a direct-conversion frequency mixer for down converting a radio frequency (RF) signal into a baseband signal, in which a single phase RF signal and a quadrature location oscillation (quadrature LO) signal are used to generate the baseband signal, the frequency mixer comprising a first frequency mixing unit that uses quadrature LO signals having respective phases of 0 degrees and 180 degrees to directly down-convert the single phase RF signal into the in-phase baseband signal, and a second frequency mixing unit that uses quadrature LO signals having respective phases of 90 degrees and 270 degrees to directly down-convert the single phase RF signal into the quadrature-phase baseband signal, whereby drains and sources of the transistor for receiving the quadrature LO signal and the transistor for receiving the RF signal are connected in common, thus enabling low power source voltage driving.

摘要翻译： 提供了一种用于将射频（RF）信号下变频为基带信号的直接转换混频器，其中使用单相RF信号和正交位置振荡（正交LO）信号来产生基带信号，频率 混频器，其包括使用具有0度和180度的相位的正交LO信号的第一频率混合单元，以将单相RF信号直接下变频为同相基带信号;以及第二混频单元，其使用正交LO信号 具有90度和270度的各个相位以将单相RF信号直接下变频为正交基带信号，由此连接用于接收正交LO信号的晶体管的漏极和源极以及用于接收RF信号的晶体管被​​连接 因此能够实现低电源电压驱动。

公开(公告)号：US07397321B2

公开(公告)日：2008-07-08

申请号：US11499440

申请日：2006-08-04

申请人： Seok Bong Hyun ,  Kyung Hwan Park ,  Tae Young Kang ,  Seong Su Park

发明人： Seok Bong Hyun ,  Kyung Hwan Park ,  Tae Young Kang ,  Seong Su Park

IPC分类号： H01P1/38

CPC分类号： H03H7/52

摘要： Provided are a digitally controlled circulator and a radio frequency identification (RFID) reader having the circulator. A power splitter is composed of lumped elements and the values of the elements are digitally changed using switching means, in which the transmission loss of a signal is controlled according to whether the reader is in a transmission state or a reception state. Therefore, the loss can be minimized, and the circulator can be miniaturized and priced down by an integrated circuit (IC) semiconductor process and mounted in a mobile terminal such as a cellular phone.

摘要翻译： 提供了一种数字控制循环器和具有循环器的射频识别（RFID）读取器。 功率分配器由集总元件组成，并且使用切换装置对元件的值进行数字改变，其中根据读取器是处于传输状态还是接收状态来控制信号的传输损耗。 因此，可以使损耗最小化，并且可以通过集成电路（IC）半导体工艺将循环器小型化和定价，并且安装在诸如蜂窝电话的移动终端中。

公开(公告)号：US07436257B2

公开(公告)日：2008-10-14

申请号：US11482576

申请日：2006-07-07

申请人： Min Park ,  Yun Ho Choi ,  Kyung Hwan Park ,  Seok Bong Hyun ,  Seong Su Park

发明人： Min Park ,  Yun Ho Choi ,  Kyung Hwan Park ,  Seok Bong Hyun ,  Seong Su Park

IPC分类号： H03F1/14

CPC分类号： H03F1/0222 ,  H03F1/0277

摘要： Provided is a power amplifier of a low-power consumption system that has linearity at a peak output power while increasing efficiency in a most frequently used range, and thereby enables a battery to last longer. The power amplifier includes an input impedance matcher for impedance-matching a signal input from the outside; a high-power amplifier and a low-power amplifier for amplifying the signal having passed through the input impedance matcher; an amplification controller controlling the high-power amplifier and low-power amplifier according to the power level of the input signal; an output impedance matcher for impedance-matching the signal amplified by the high-power amplifier and low-power amplifier; and a dynamic voltage supplier for supplying the low-power amplifier with a variable driving voltage. With the constitution set forth above, linearity at peak output power is maintained, and efficiency increases in the most frequently used range, thereby enabling the battery of a handheld to last longer.

摘要翻译： 提供了一种低功耗系统的功率放大器，其在峰值输出功率下具有线性度，同时提高了最常用范围内的效率，从而使得电池能够持续更长时间。 功率放大器包括用于阻抗匹配从外部输入的信号的输入阻抗匹配器; 大功率放大器和用于放大已经通过输入阻抗匹配器的信号的低功率放大器; 放大控制器根据输入信号的功率电平控制大功率放大器和低功率放大器; 用于阻抗匹配由大功率放大器和低功率放大器放大的信号的输出阻抗匹配器; 以及用于向低功率放大器供应可变驱动电压的动态电压供应器。 根据上述结构，保持峰值输出功率的线性度，并且在最常用的范围内效率增加，从而使得手持式电池的持续时间更长。

公开(公告)号：US08599902B2

公开(公告)日：2013-12-03

申请号：US12853499

申请日：2010-08-10

申请人： In Gi Lim ,  Hyung II Park ,  Sung Weon Kang ,  Tae Wook Kang ,  Chang Hee Hyoung ,  Jung Hwan Hwang ,  Kyung Soo Kim ,  Jung Bum Kim ,  Sung Eun Kim ,  Jin Kyung Kim ,  Seok Bong Hyun ,  Kyung Hwan Park ,  Byoung Gun Choi ,  Tae Young Kang

发明人： In Gi Lim ,  Hyung II Park ,  Sung Weon Kang ,  Tae Wook Kang ,  Chang Hee Hyoung ,  Jung Hwan Hwang ,  Kyung Soo Kim ,  Jung Bum Kim ,  Sung Eun Kim ,  Jin Kyung Kim ,  Seok Bong Hyun ,  Kyung Hwan Park ,  Byoung Gun Choi ,  Tae Young Kang

IPC分类号： H04B1/00

CPC分类号： H04J13/004 ,  H04J13/0048 ,  H04J13/18

摘要： A frequency selective modulation apparatus and method using re-spreading codes are disclosed. The frequency selective modulation apparatus includes: a serial-to-parallel converter receiving transmission data and performing serial-to-parallel conversion on the transmission data at a pre-set ratio; one or more sub-frequency selective spreaders selecting one spreading code by using data bits received from the serial-to-parallel converter; a majority value selection unit selecting a majority value from one or more spreading codes which have been selected by each of the one or more of the sub-frequency selective spreaders; and a first XOR logic circuit XORing an output of the majority value selection unit and a re-spreading code Wn to re-spread a frequency selective baseband to a frequency selective passband.

摘要翻译： 公开了一种使用重扩展码的频率选择调制装置和方法。 所述频率选择调制装置包括：串并转换器，接收传输数据，并以预定比率对传输数据进行串并转换; 一个或多个子频率选择扩展器通过使用从串行到并行转换器接收的数据位选择一个扩展码; 多数值选择单元从一个或多个子频率选择扩展器中的每一个选择的一个或多个扩展码中选择多数值; 以及对多数值选择单元的输出进行异或运算的第一异或逻辑电路和重频扩展码Wn，以将频率选择性基带重新扩频到频率选择性通带。

公开(公告)号：US08249136B2

公开(公告)日：2012-08-21

申请号：US12633980

申请日：2009-12-09

申请人： Tae Wook Kang ,  In Gi Lim ,  Sung Weon Kang ,  Tae Young Kang ,  Kyung Soo Kim ,  Sung Eun Kim ,  Jung Bum Kim ,  Jin Kyung Kim ,  Kyung Hwan Park ,  Hyung Il Park ,  Byoung Gun Choi ,  Chang Hee Hyoung ,  Jung Hwan Hwang ,  Hey Jin Myoung ,  Seok Bong Hyun ,  Ki Hyuk Park ,  Jae Hoon Shim

发明人： Tae Wook Kang ,  In Gi Lim ,  Sung Weon Kang ,  Tae Young Kang ,  Kyung Soo Kim ,  Sung Eun Kim ,  Jung Bum Kim ,  Jin Kyung Kim ,  Kyung Hwan Park ,  Hyung Il Park ,  Byoung Gun Choi ,  Chang Hee Hyoung ,  Jung Hwan Hwang ,  Hey Jin Myoung ,  Seok Bong Hyun ,  Ki Hyuk Park ,  Jae Hoon Shim

IPC分类号： H04B3/46 ,  H04B17/00 ,  H04Q1/20

CPC分类号： H04B1/707 ,  H04B2201/70715

摘要： An adaptive frequency selective baseband communications method using orthogonal codes includes: a communications testing step of performing communications by using one of a plurality of codes each having a different frequency band; a proper code selecting step of selecting a proper code by using a correlation value of a plurality of codes included in test data transmitted in the communications testing step; a communications performing step of performing communications by using the proper code; and a feedback step of newly selecting a proper code by using the correlation value of the plurality of codes included in the test data transmitted in the communications performing step if a pre-set time duration has lapsed or if a reception error of more than a pre-set reference occurs, and performing the communications performing step again, wherein the test data transmitted in the communications testing step and the communications performing step includes a plurality of codes each having a different frequency band.

摘要翻译： 使用正交码的自适应频率选择性基带通信方法包括：通信测试步骤，通过使用每个具有不同频带的多个码中的一个来执行通信; 适当的代码选择步骤，通过使用在通信测试步骤中发送的测试数据中包括的多个代码的相关值来选择适当的代码; 通过使用适当的代码执行通信的通信执行步骤; 以及反馈步骤，通过使用包括在通信执行步骤中发送的测试数据中的多个代码的相关值来重新选择适当的代码，如果预设的持续时间已经过去或者如果超过预先设定的持续时间的接收错误 - 进行参考，并且再次执行通信执行步骤，其中在通信测试步骤和通信执行步骤中发送的测试数据包括每个具有不同频带的多个代码。

公开(公告)号：US20110154413A1

公开(公告)日：2011-06-23

申请号：US12951970

申请日：2010-11-22

申请人： Kyung Hwan PARK ,  Sung Weon Kang ,  In Gi Lim ,  Kyung Soo Kim ,  Jung Bum Kim ,  Seok Bong Hyun ,  Tae Young Kang ,  Tae Wook Kang ,  Hyung Il Park ,  Sung Eun Kim ,  Byoung Gun Choi ,  Chang Hee Hyoung ,  Jung Hwan Hwang

发明人： Kyung Hwan PARK ,  Sung Weon Kang ,  In Gi Lim ,  Kyung Soo Kim ,  Jung Bum Kim ,  Seok Bong Hyun ,  Tae Young Kang ,  Tae Wook Kang ,  Hyung Il Park ,  Sung Eun Kim ,  Byoung Gun Choi ,  Chang Hee Hyoung ,  Jung Hwan Hwang

IPC分类号： H04N7/18

CPC分类号： H04N7/18 ,  H04N7/10

摘要： Disclosed is a system for providing multimedia data using human body communication in transportation capable of improving user convenience in transportation and providing various multimedia data. The system for providing multimedia data using human body communication in transportation includes: a multimedia data providing device converting multimedia data into a signal available for human communication and transmitting the converted signal to one or more of conductive units installed within transportation; and a human body communication device receiving the multimedia data through a user's body brought into contact with the one or more conductive units and executing the received multimedia data.

摘要翻译： 公开了一种使用运输中的人体通信提供多媒体数据的系统，其能够提高运输中的用户便利性并提供各种多媒体数据。 用于在运输中使用人体通信提供多媒体数据的系统包括：多媒体数据提供设备，将多媒体数据转换成可用于人类通信的信号，并将转换的信号发送到安装在运输过程中的导电单元中的一个或多个; 以及人体通信装置，其通过与所述一个或多个导电单元接触的用户主体接收所述多媒体数据并执行所接收的多媒体数据。

公开(公告)号：US20110085505A1

公开(公告)日：2011-04-14

申请号：US12902121

申请日：2010-10-11

申请人： Tae Young KANG ,  Sung Weon Kang ,  Tae Wook Kang ,  Kyung Soo Kim ,  Sung Eun Kim ,  Jung Bum Kim ,  Kyung Hwan Park ,  Hyung Il Park ,  In Gi Lim ,  Byoung Gun Choi ,  Seok Bong Hyun ,  Chang Hee Hyoung ,  Jung Hwan Hwang

发明人： Tae Young KANG ,  Sung Weon Kang ,  Tae Wook Kang ,  Kyung Soo Kim ,  Sung Eun Kim ,  Jung Bum Kim ,  Kyung Hwan Park ,  Hyung Il Park ,  In Gi Lim ,  Byoung Gun Choi ,  Seok Bong Hyun ,  Chang Hee Hyoung ,  Jung Hwan Hwang

IPC分类号： H04W8/02

CPC分类号： A61B5/0028 ,  A61B5/0024 ,  H04B13/005 ,  H04W72/048

摘要： A method for generating a communication frame of a body area network, includes: recognizing the number of terminals existing within a predetermined area; allocating an individual frame to be used by each of the terminals existing within the predetermined area according to the recognized number of terminals; and allocating a coexistence frame to be transmitted to every terminal existing within the predetermined area according to the recognized number of terminals.

摘要翻译： 一种用于生成体区网络的通信帧的方法，包括：识别存在于预定区域内的终端的数量; 根据所识别的终端数量，分配存在于预定区域内的每个终端使用的单个帧; 以及根据所识别的终端数目，将要发送到存在于预定区域内的每个终端的共存帧分配。