公开(公告)号：KR1020060004729A

公开(公告)日：2006-01-16

申请号：KR1020040052249

申请日：2004-07-06

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04L7/10 ,  H04L27/26

CPC classification number: H04L27/2665 ,  H04H40/27 ,  H04H2201/20 ,  H04L27/2659 ,  H04L27/266 ,  H04L27/2675

Abstract: DAB/DMB(Digital Audio Broadcasting / Digital Multimedia Broadcasting) 수신기용 동기장치과 그 동기방법이 개시된다. 본 발명에 따르면, 시간영역에서 프레임의 시작점을 찾고, 심볼 타이밍 보상(Symbol Timing Recovery)을 수행하는 시간동기부, 미세 캐리어 보상(Fine Carrier Recovery)을 수행하는 수단을 구비하고, 주파수영역에서 코얼스 캐리어 보상(Coarse Carrier Recovery)을 수행하여 반송파 주파수 에러를 보상하는 수단을 구비한다. 이에 의하여 정확한 프레임 동기와 고속퓨리에변환의 시작점을 가지고 고속퓨리에변환을 실시함에 따라 심볼간 간섭(ISI:Inter Symbol Interference)가 발생하지 않으며, 고속퓨리에변환 시작점의 변동에 의한 위상회전이 발생하지 않는다. 또한 고속퓨리에변환을 하기 전에 미세 캐리어 보상을 수행함으로써 부반송파 주파수간격 소수배의 반송파 에러가 코얼스 캐리어 보상에 영향을 주지않게 된다. 또한 시간영역에서 많은 동기 에러를 보상하여 전체적으로 동기과정의 안정성을 더욱 확보할 수 있다.
DMB, DAB, 동기장치, 프레임 시간동기, 심볼시간동기, Fine Carrier Recovery, Coarse Carrier Recovery, OFDM

公开(公告)号：KR1020060003670A

公开(公告)日：2006-01-11

申请号：KR1020040052650

申请日：2004-07-07

Applicant: 삼성전자주식회사

Inventor： 이면희 ,  박찬섭

IPC: H04L7/00 ,  H04J11/00 ,  H04N7/015

CPC classification number: H04L27/2655 ,  H04L27/2675 ,  H04L27/2695 ,  H04L27/2656 ,  H04L27/2657

Abstract: 프레임 및 심볼 시간동기 검출장치 및 검출방법이 개시된다. 본 발명에 따르면, OFDM(Orthogonal Frequency Division Multiplex)변조된 디지털 신호의 프레임의 위상기준심볼의 상관값을 구함으로써, 고속퓨리에변환(FFT:Fast Fourier Transform)을 수행하기 이전의 시간영역에서 프레임의 시작점을 찾고, 심볼 타이밍 보상(STR:Symbol Timing Recovery)을 할 수 있다. 그리고, 위상기준심볼의 부호만을 구하여 상관값을 구함으로써 하드웨어의 사이즈를 현저하게 줄일 수 있고, 따라서 저전력에 의한 프레임 동기 및 심볼 타이밍 동기 검출장치를 구현할 수 있다.
OFDM, 프레임동기, 위상기준심볼, PRS, 심볼 타이밍 보상, STR

公开(公告)号：KR1020050008432A

公开(公告)日：2005-01-21

申请号：KR1020030064001

申请日：2003-09-16

Applicant: 삼성전자주식회사

Inventor： 김준수 ,  박찬섭 ,  곽정원 ,  이동훈

IPC: H04N7/015

CPC classification number: H04L1/0041 ,  H04B2201/70701 ,  H04L1/0065 ,  H04N5/211 ,  H04N5/4401 ,  H04N21/2383 ,  H04N21/4382

Abstract: PURPOSE: A digital broadcast transmission/reception system and a method of processing a signal in the system are provided to improve receiving performance by inserting a hidden pilot signal. CONSTITUTION: An error correction coding part(310) codes an input signal in an error correction manner. A synchronizing signal insertion part(320) inserts a synchronizing signal into a coded signal. A pilot insertion part(330) inserts a hidden pilot signal into the signal into which the synchronizing signal has been inserted. A pilot insertion part(340) inserts a pilot tone into the signal into which the hidden pilot signal has been inserted. A pulse shaping filter(350) performs pulse shaping of the signal into which the pilot tone has been inserted, by using a roll-off factor. An RF(Radio Frequency) part(450) transmits the pulse shaped signal to a transmission channel band.

Abstract translation: 目的：提供一种数字广播发送/接收系统和系统中处理信号的方法，以通过插入隐藏的导频信号来提高接收性能。 构成：纠错编码部（310）以纠错方式对输入信号进行编码。 同步信号插入部（320）将同步信号插入到编码信号中。 导频插入部分（330）将隐藏的导频信号插入到已经插入同步信号的信号中。 导频插入部分（340）将导频音插入隐藏导频信号已被插入的信号中。 脉冲整形滤波器（350）通过使用滚降因子来对导频音进行插入的信号进行脉冲整形。 RF（射频）部分（450）将脉冲形状信号发送到传输信道频带。

公开(公告)号：KR1020050008429A

公开(公告)日：2005-01-21

申请号：KR1020030062836

申请日：2003-09-08

Applicant: 삼성전자주식회사

Inventor： 김준수 ,  이동훈 ,  곽정원 ,  박찬섭

IPC: H04N7/015

CPC classification number: H04L1/0057 ,  H04L1/006 ,  H04L1/0065 ,  H04L1/0071 ,  H04L25/03834 ,  H04L27/04 ,  H04L27/066 ,  H04L2025/03382 ,  H04L2027/0087

Abstract: PURPOSE: A digital broadcast transmission/reception system and a method of processing a signal in the system are provided to improve receiving performance by transmitting at least one pilot signal and thereby making the pilot signal obtained easily at a receiver part. CONSTITUTION: An error correction coding part(310) codes an input signal in an error correction manner. A synchronizing signal insertion part(320) inserts a synchronizing signal into an error correction coded signal. The first pilot insertion part(330) inserts the first pilot signal into the signal into which the synchronizing signal has been inserted. The second pilot insertion part(340) inserts a plurality of the second pilot signals into the signal into which the first pilot signal has been inserted. A pulse shaping filter(350) performs pulse shaping of the signal into which the first pilot signal and the second pilot signals have been inserted. An RF(Radio Frequency) part(360) transmits the pulse shaped signal to a transmission channel band.

Abstract translation: 目的：提供一种数字广播发送/接收系统和系统中处理信号的方法，以通过发送至少一个导频信号来提高接收性能，从而使导频信号容易地在接收机部分获得。 构成：纠错编码部（310）以纠错方式对输入信号进行编码。 同步信号插入部（320）将同步信号插入到纠错编码信号中。 第一导频插入部分（330）将第一导频信号插入到插入同步信号的信号中。 第二导频插入部分（340）将多个第二导频信号插入到插入有第一导频信号的信号中。 脉冲整形滤波器（350）对第一导频信号和第二导频信号已被插入的信号执行脉冲整形。 RF（射频）部分（360）将脉冲形状信号发送到传输信道频带。

公开(公告)号：KR1020040110038A

公开(公告)日：2004-12-29

申请号：KR1020030040417

申请日：2003-06-20

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04N7/015

CPC classification number: H04L27/2675 ,  H04J13/0022 ,  H04L27/265 ,  H04L27/2672

Abstract: PURPOSE: A TDS-OFDM(Time Domain Synchronous-Orthogonal Frequency Division Multiplexing) receiving system and a signal processing method thereof are provided to use pilot signals hidden in a frequency region, thereby accurately estimating frequency offset, time offset and multi-path. CONSTITUTION: A Fourier conversion part(421) converts signals of time region into signals of frequency region. A pilot detection part(431) detects pilot signals hidden in the frequency region. An offset/channel estimation part(433) estimates frequency offset, time offset and channel state based on correlation between the signals of frequency region and the pilot signals. An offset compensation part(413) compensates the estimated frequency offset and the time offset. An equalization part(435) equalizes the signals of frequency region based on the estimated channel state.

Abstract translation: 目的：提供TDS-OFDM（时域同步 - 正交频分复用）接收系统及其信号处理方法，以使用隐藏在频域中的导频信号，从而准确估计频偏，时间偏移和多路径。 构成：傅里叶变换部（421）将时域的信号变换为频率区域的信号。 导频检测部（431）检测隐藏在频率区域中的导频信号。 偏移/信道估计部分（433）基于频域和导频信号之间的相关性来估计频偏，时间偏移和信道状态。 偏移补偿部分（413）补偿估计的频率偏移和时间偏移。 均衡部（435）基于所估计的信道状态对频率区域的信号进行均衡。

公开(公告)号：KR100454483B1

公开(公告)日：2004-10-28

申请号：KR1020020011362

申请日：2002-03-04

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04L27/34

CPC classification number: H03D3/007 ,  H04L27/22

Abstract: An I/Q demodulator optimized with a minimum amount of hardware. First and second multiplexers generate I and Q signals with respect to an input data signal; and first and second 2-decimation units decimate the I and Q signals generated by the first and second multiplexers, to output effective I and Q signals. A filtering unit filters the effective I and Q signals. As a result, a size of the hardware is reduced, and an operation frequency of the filter is reduced.

Abstract translation: 一个I / Q解调器，使用最少的硬件进行优化。 第一和第二多路复用器相对于输入数据信号产生I和Q信号; 并且第一和第二2抽取单元抽取由第一和第二多路复用器产生的I和Q信号，以输出有效的I和Q信号。 滤波单元过滤有效的I和Q信号。 结果，减小了硬件的尺寸，并且降低了滤波器的操作频率。

公开(公告)号：KR1020040028230A

公开(公告)日：2004-04-03

申请号：KR1020020059368

申请日：2002-09-30

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04N7/015

CPC classification number: H04L27/2634 ,  H04J13/0022 ,  H04L1/0042

Abstract: PURPOSE: A COFDM(Coded Orthogonal Frequency Division Multiplexing) transmitting system adding a pilot signal to a frequency domain and a signal processing method thereof are provided to set the pilot signal inserted in the frequency domain very low, thereby improving receiving efficiency and having compatibility with an existing system. CONSTITUTION: An FEC(Forward Error Correction) unit codes signals of a frequency domain for a receiving party to detect and correct an error. A mapping unit(310) maps the coded signals of the frequency domain by using a predetermined mapping method. A frame forming unit(320) inserts a first pilot signal to the signals of the frequency domain and forms OFDM frame signals formatted according to transmission modes. A pilot insertion unit(330) adds a second pilot signal having a relatively small size compared with an average size of the OFDM signals of the frequency domain to the OFDM frame signals. An IFFT(Inverse Fast Fourier Transform) unit(340) performs IFFT for the OFDM frame signals of the frequency domain to transform the IFFTed frame OFDM signals into OFDM signals of a time domain. A GI(Guard Interval) insertion unit(350) inserts a GI in the OFDM signals of the time domain.

Abstract translation: 目的：提供一种向频域添加导频信号的COFDM（编码正交频分复用）发射系统及其信号处理方法，将频域中插入的导频信号设置得非常低，从而提高接收效率，并具有与 现有系统。 构成：FEC（前向纠错）单元对接收方的频域信号进行编码，以检测和纠正错误。 映射单元（310）通过使用预定的映射方法映射频域的编码信号。 帧形成单元（320）将第一导频信号插入到频域的信号，并形成根据传输模式格式化的OFDM帧信号。 导频插入单元（330）将与频域的OFDM信号的平均大小相比具有相对小的第二导频信号与OFDM帧信号相加。 IFFT（逆快速傅立叶变换）单元（340）对频域的OFDM帧信号执行IFFT，以将IFFTed帧OFDM信号转换成时域的OFDM信号。 GI（保护间隔）插入单元（350）在时域的OFDM信号中插入GI。

公开(公告)号：KR1020030091589A

公开(公告)日：2003-12-03

申请号：KR1020020029693

申请日：2002-05-28

Applicant: 삼성전자주식회사

Inventor： 박찬섭 ,  곽정원

IPC: H04J11/00

CPC classification number: H04L27/2607 ,  H04L25/03006 ,  H04L27/2626

Abstract: PURPOSE: An OFDM(Orthogonal Frequency Division Multiplexing) transmitter and a method for inserting a guard interval into an OFDM symbol thereof are provided to minimize the generation of data distortion in an OFDM transmission method. CONSTITUTION: According to the OFDM transmitter having an OFDM symbol structure where a guard interval is inserted into a position of an effective symbol, a guard interval insertion part(130) inserts G sample data in a back part of the effective symbol into a front part of the effective symbol at the first guard interval(GI-1), and also inserts the G sample data in the front part of the effective symbol into the back part of the effective symbol at the second guard interval(GI-2).

Abstract translation: 目的：提供OFDM（正交频分复用）发射机和用于将保护间隔插入其OFDM符号的方法，以最小化OFDM传输方法中的数据失真的产生。 构成：根据具有将保护间隔插入有效符号的位置的OFDM符号结构的OFDM发送器，保护间隔插入部（130）将有效符号的后部的G取样数据插入前端部 在第一保护间隔（GI-1）处的有效符号，并且还将有效符号的前部的G采样数据以第二保护间隔（GI-2）插入有效符号的后部。

公开(公告)号：KR200181727Y1

公开(公告)日：2000-05-15

申请号：KR2019970020395

申请日：1997-07-30

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04N5/225

Abstract: 본 고안은 캠코더의 이물질 유입 방지 장치에 관한 것으로, 측방향으로 개폐되는 하우징 커버를 갖는 캠코더에 있어서, 상기 하우징 커버의 상측을 복개하는 상부 덮개를 회전가능하게 설치하고, 이 상부 덮개를 캠코더의 케이스에 록킹시키는 록킹수단을 구비하는 것을 특징으로 하며, 상기 록킹수단은 상부 덮개에 스프링에 의해 탄지되어 있는 걸이구와, 케이스부에 형성된 록킹부와, 상기 록킹부에 수납되어 상기 걸이구에 걸리며 상기 걸이구의 반대방향으로 스프링에 의해 탄지되어 있는 록킹구와, 상기 록킹구를 이동시키는 슬라이드 노브로 구성되는 것이 바람직하다.
이와 같은 본 고안은 캠코더의 하우징 커버의 상면을 복개하는 별도의 상부 덮개를 구비하여 하우징 커버와 캠코더 케이스와의 틈새를 통해 이물질이 데크의 내부로 유입되는 것을 방지하도록 한 것이다.

公开(公告)号：KR100257269B1

公开(公告)日：2000-05-15

申请号：KR1019960074296

申请日：1996-12-28

Applicant: 삼성전자주식회사

Inventor： 박찬섭

IPC: H04N5/225

Abstract: PURPOSE: An electronic view finder mounting structure of a camcorder is provided to improve the working efficiency by simplifying an assembling work, and to extend a product's life by reducing the degree of abrasion of components. CONSTITUTION: A boss(121) is protruded and formed on one side of a view finder case(120). A penetration hole(111) is formed in a body case(110). The boss(121) is inserted into the penetration hole(111). Guide protrusion(113,113a) are protruded and formed at regular intervals. Guide grooves(122,122a) are formed in the boss(121). An electronic view finder which rotates the boss(121) is guided by the guide protrusions(113,113a) which move in the guide grooves(122,122a). A separation prevention member(130) is combined by a screw(150). A fixing rib(123) is formed in the front of the boss(121).

Abstract translation: 目的：提供摄像机的电子取景器安装结构，通过简化组装工作提高工作效率，并通过降低组件的磨损程度来延长产品的使用寿命。 构成：凸台（121）突出并形成在取景器壳体（120）的一侧。 穿孔（111）形成在主体壳体（110）中。 凸台（121）插入穿透孔（111）中。 引导突起（113,113a）以规则的间隔突出并形成。 引导槽（122,122a）形成在凸台（121）中。 旋转凸台（121）的电子取景器由在引导槽（122,122a）中移动的引导突起（113,113a）引导。 分离防止部件（130）通过螺钉（150）组合。 在凸台（121）的前方形成固定肋（123）。