公开(公告)号：KR100937602B1

公开(公告)日：2010-01-20

申请号：KR1020070129774

申请日：2007-12-13

Applicant: 한국전자통신연구원

Inventor： 박기혁 ,  임인기 ,  강성원 ,  박형일 ,  형창희 ,  황정환 ,  김진경 ,  박덕근 ,  강태욱 ,  김성은 ,  김정범 ,  김경수

IPC: H04B13/00

CPC classification number: H04B13/005

Abstract: 본 발명에 따른 인체 통신 시스템은 의사잡음 코드가 맨체스터 인코딩된 프리엠블을 포함하는 프레임을 상기 인체로 전송하는 송신부, 그리고 상기 인체로부터 상기 프레임을 수신하여 맨체스터 디코딩하고, 상기 디코딩 결과 및 상기 의사잡음 코드의 상호 상관을 수행하고, 그리고 상기 상호 상관 결과를 근거로 하여 프레임 동기를 수행하는 수신부를 포함한다. 본 발명에 따르면, 클럭 및 데이터 복원 동작 성능이 향상된다. 본 발명은 계산량을 줄인 효율적인 프레임 동기 방식을 제공한다.

公开(公告)号：KR1020090064939A

公开(公告)日：2009-06-22

申请号：KR1020070132324

申请日：2007-12-17

Applicant: 한국전자통신연구원

Inventor： 형창희 ,  강성원 ,  황정환 ,  김성은 ,  김진경 ,  강태욱 ,  김경수 ,  김정범 ,  박형일 ,  임인기 ,  박기혁 ,  심재훈

IPC: A61B1/00 ,  H04B13/00

CPC classification number: A61B1/041 ,  A61B5/0031

Abstract: A human body communication system and a method are provided to communicate a wireless internal capsule to an external recording device at high speed with a little power consumption, thereby replacing a conventional RF method. A human body communication system and a method include a wireless capsule(100) and a portable data recorder(200). The wireless capsule is located inside a human body to obtain internal image information and to transmit the obtained internal image information to the outside. The portable data recorder is in communication with the wireless capsule. The portable data recorder receives signals transmitted from the wireless capsule and stores the received signals through a wireless data process.

Abstract translation: 提供了一种人体通信系统和方法，其以低功率消耗高速地将无线内部胶囊传送到外部记录装置，从而代替常规的RF方法。 人体通信系统和方法包括无线胶囊（100）和便携式数据记录器（200）。 无线胶囊位于人体内部以获得内部图像信息并将获得的内部图像信息发送到外部。 便携式数据记录器与无线胶囊通信。 便携式数据记录器接收从无线胶囊发送的信号，并通过无线数据处理存储所接收的信号。

公开(公告)号：KR1020090026890A

公开(公告)日：2009-03-16

申请号：KR1020070091954

申请日：2007-09-11

Applicant: 한국전자통신연구원

Inventor： 김진경 ,  강성원 ,  강태욱 ,  김경수 ,  김성은 ,  김정범 ,  박덕근 ,  박형일 ,  임인기 ,  형창희 ,  황정환 ,  박기혁 ,  심재훈

IPC: H04B13/02

CPC classification number: H04B13/005

Abstract: A TDD(Time Division Duplex) mode communications device and an operation method for stabilizing clock without a crystal oscillator are provided to generate the operation clock of receiver and transmission unit by penuriously using a CDR circuit used for clock and reconstitution of data of the receive frame. An analog front end unit(21) receives a receive frame from outside and outputs transmission frame. An analog front end restores the clock and data of the received signal through CDR(Clock Recovery Data Retiming). A transmission unit(22) is operated by using the clock signal of the reference frequency generated in CDR for the transmission time interval. The transmission unit generates the transmission frame. A receiver(23) is operated by using the clock signal restored by CDR from the receive frame for the receive timing section. The receiver processes data restored in the analog front end.

Abstract translation: 提供TDD（时分双工）模式通信设备和用于稳定不带晶体振荡器的时钟的操作方法，以便通过使用用于时钟的CDR电路和接收帧的数据的重构来产生接收机和传输单元的操作时钟 。 模拟前端单元（21）从外部接收接收帧并输出传输帧。 模拟前端通过CDR（时钟恢复数据重新定时）恢复接收到的信号的时钟和数据。 传输单元（22）通过使用在CDR中产生的参考频率的时钟信号作为传输时间间隔来操作。 发送单元生成发送帧。 通过使用从接收定时部分的接收帧中的CDR恢复的时钟信号来操作接收机（23）。 接收机处理在模拟前端恢复的数据。

公开(公告)号：KR1020090019151A

公开(公告)日：2009-02-25

申请号：KR1020070083374

申请日：2007-08-20

Applicant: 한국전자통신연구원

Inventor： 강태욱 ,  임인기 ,  박형일 ,  강성원 ,  김경수 ,  김정범 ,  형창희 ,  박덕근 ,  김성은 ,  황정환 ,  박기혁 ,  심재훈 ,  김진경

IPC: H04B13/00

CPC classification number: H04B13/005

Abstract: A receiver and a receiving method for a human body communication system are provided to transmit data stably without the reduction of a transmission speed by reducing distortion of a channel and a noise of a signal. A human body communication transceiver includes a human body communication MAC(31), a human body communication physical layer modem(32) and a transmission signal electrode(330). A human body communication receiving device includes a plurality of receiving signal electrodes(333,335,337), and a human body communication AFEs(332,334,336) connected to the plurality of received signal electrodes(333,335,337), and a receiving unit. The human body communication MAC is composed of a MAX transmitting processor(311) and a MAX receiving processor(312). A transmission unit(321) in the human body communication physical layer modem is composed of a data generator(3210) and a frequency selective diffusion modulator(3211). The signal transmitted through the transmitting signal electrode is delivered through the human body channel. The receiving signal electrode attached to the human body receives the signal delivered through the human body channel. The signal received through the plurality of receiving signal electrodes includes the equal data. If the plurality of receiving signal electrodes are used, the electrode direction of the receiving signal attached to the human body is varied.

Abstract translation: 提供用于人体通信系统的接收机和接收方法，用于通过减少信道的失真和信号的噪声来稳定地传输数据而不降低传输速度。 人体通信收发器包括人体通信MAC（31），人体通信物理层调制解调器（32）和发送信号电极（330）。 人体通信接收装置包括多个接收信号电极（333,335,337）和连接到多个接收信号电极（333,335,337）的人体通信AFE（332,334,336）和接收单元。 人体通信MAC由MAX发送处理器（311）和MAX接收处理器（312）组成。 人体通信物理层调制解调器中的传输单元（321）由数据发生器（3210）和频率选择扩散调制器（3211）组成。 通过发射信号电极传输的信号通过人体通道传送。 附接到人体的接收信号电极接收通过人体通道传送的信号。 通过多个接收信号电极接收的信号包括相等的数据。 如果使用多个接收信号电极，则改变附着在人体上的接收信号的电极方向。

公开(公告)号：KR1020080114451A

公开(公告)日：2008-12-31

申请号：KR1020070087869

申请日：2007-08-30

Applicant: 한국전자통신연구원

Inventor： 임인기 ,  박형일 ,  강성원 ,  강태욱 ,  형창희 ,  황정환 ,  김경수 ,  김정범 ,  박덕근 ,  김진경 ,  김성은 ,  박기혁 ,  심재훈

IPC: H04L27/10 ,  H04B13/00

CPC classification number: H04J13/0003 ,  H04B13/005 ,  H04J13/12 ,  H04L5/0016 ,  H04L25/03828 ,  H04L25/03866 ,  H04L25/4908

Abstract: A method for modulation and demodulation capable of improving transmitted-data rate using frequency selective baseband and apparatus thereof are provided to reduce energy consumption about a data transmission by using a limited frequency band. A method for modulation and demodulation capable of improving transmitted-data rate using frequency selective baseband comprises the following steps: a step for generating a plurality of sub groups by dividing a total spreading code of 2N(N is real number) used for a spread spectrum into a number unit of 2M(M

Abstract translation: 提供了一种能够使用频率选择性基带改善发送数据速率的调制和解调方法及其装置，以通过使用有限频带来减少关于数据传输的能量消耗。 一种能够使用频率选择性基带改善发送数据速率的调制和解调方法包括以下步骤：通过将用于扩展频谱的2N（N是实数）的总扩展码除以多个子组生成步骤 成为2M（M

公开(公告)号：KR100835175B1

公开(公告)日：2008-06-05

申请号：KR1020060124028

申请日：2006-12-07

Applicant: 한국전자통신연구원

Inventor： 임인기 ,  박기혁 ,  강성원 ,  김경수 ,  김정범 ,  형창희 ,  박형일 ,  박덕근 ,  황정환 ,  김성은 ,  김진경 ,  성진봉 ,  김혁

IPC: H04B7/00 ,  H04L12/28

CPC classification number: H04J13/0048 ,  H04B1/7087 ,  H04B13/005 ,  H04J13/16

Abstract: A digital communication system using a frequency selective baseband and a method thereof are provided to reduce the complexity of analog transmitting/receiving terminals using the serial/parallel conversion of data and a frequency selective diffusion code, thereby improving the power consumption of the entire system. A transmitter(221) in a digital communication system comprises a preamble/header transmitting unit(2210,2211,2212,2213), a data transmitting unit(2214,2215,2216,2217), and a multiplexing unit(2218). The preamble/header transmitting unit diffuses header information comprised of a preamble for frame synchronization and data property information. The data transmitting unit diffuses data to be transmitted to the outside using a frequency selective diffusion code. The multiplexing unit performs the multiplexing of the preamble and header diffused by the preamble/header transmitting unit, and data diffused selectively according to a frequency in the data transmitting unit and transmits the diffused preamble, header and data which are converted into digital signals.

Abstract translation: 提供了使用频率选择性基带的数字通信系统及其方法，以通过数据的串行/并行转换和频率选择性扩散码降低模拟发送/接收终端的复杂度，从而提高整个系统的功耗。 数字通信系统中的发射机（221）包括前同步码/报头发送单元（2210,2211,2212,2213），数据发送单元（2214,2215,2216,2217）和复用单元（2218）。 前导/报头发送单元扩散由帧同步的前导码和数据属性信息组成的报头信息。 数据发送单元使用频率选择性扩散码将要发送的数据扩散到外部。 多路复用单元执行由前导码/报头发送单元扩散的前同步码和报头的复用，以及根据数据发送单元中的频率选择性地扩散的数据，并发送被转换为数字信号的扩散前导码，报头和数据。

公开(公告)号：KR100433627B1

公开(公告)日：2004-05-31

申请号：KR1020010078171

申请日：2001-12-11

Applicant: 한국전자통신연구원

Inventor： 박기혁 ,  엄낙웅 ,  김보우

IPC: G06F7/44

Abstract: PURPOSE: A low-power complex number multiplier is provided to reduce an electric power consumption by operating the optimum multiplier only in the case that a real number and an imaginary number of two input complex numbers are identical. CONSTITUTION: In a complex number multiplier for calculating the product of two complex numbers('x', 'y'), the first multiplier(201) multiplies a real number of 'x' by a real number of 'y'. The second multiplier(202) multiplies an imaginary number of 'x' by an imaginary number of 'y'. The third multiplier(203) multiplies a real number of 'x' by an imaginary number of 'y'. The fourth multiplier(204) multiplies an imaginary number of 'x' by a real number of 'y'. A subtracter(205) calculates a difference of output values of the first multiplier(201) and the second multiplier(202), and calculates a real number of the product of two complex numbers('x', 'y'). An adder(206) calculates the sum of the output values of the third multiplier(203) and the fourth multiplier(204), and calculates an imaginary number of the product of two complex numbers('x', 'y'). A selection unit(300) is included between the third multiplier(203)/the fourth multiplier(204) and the adder(206) for inputting the output values of the first multiplier(201) and the second multiplier(202) to the adder(206) in the case that at least one real number and at least one imaginary number are identical.

Abstract translation: 目的：仅在两个输入复数的实数和虚数相同的情况下，通过操作最佳乘法器来提供低功率复数乘法器以减少电能消耗。 构成：在用于计算两个复数（'x'，'y'）的乘积的复数乘法器中，第一乘法器（201）将实数“x”乘以实数“y”。 第二乘法器（202）将虚数'x'乘以虚数'y'。 第三乘法器（203）将实数“x”乘以虚数“y”。 第四乘法器（204）将虚数'x'乘以实数'y'。 减法器（205）计算第一乘法器（201）和第二乘法器（202）的输出值的差值，并计算两个复数（'x'，'y'）乘积的实数。 加法器（206）计算第三乘法器（203）和第四乘法器（204）的输出值之和，并计算两个复数（'x'，'y'）的乘积的虚数。 在第三乘法器（203）/第四乘法器（204）和加法器（206）之间包括一个选择单元（300），用于将第一乘法器（201）和第二乘法器（202）的输出值输入到加法器 （206）在至少一个实数和至少一个虚数相同的情况下。