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公开(公告)号：KR101051961B1
公开(公告)日：2011-07-26
申请号：KR1020100119037
申请日：2010-11-26
Applicant: 전자부품연구원
Abstract: 본 발명은 무선 오디오 송신 장치, 무선 오디오 스피커, 무선 오디오 송신 시스템 및 그 제어 방법에 대하여 개시한다. 본 발명은 무선 채널정보를 획득하여 무선 오디오 송신 장치에 전송하고 오디오 데이터를 수신하여 재생하는 무선 오디오 스피커; 그리고 다수의 무선 오디오 스피커로부터 각각 수신된 무선 오디오 스피커의 특성 정보 및 무선 오디오 송신 장치와 모든 무선 오디오 스피커 사이의 무선채널특성 정보를 직교주파수분할다중화(Orthogonal Frequency Division Multiplexing) 복조하여 상기 각 특성 정보를 추출하는 수신기; 및 상기 각 특성 정보 및 다채널 음원정보를 참조하여 상기 각 스피커에 대한 서로 다른 부반송파를 할당하고, 상기 각 스피커로 전송할 오디오 데이터를 상기 할당된 부반송파에 실어 직교주파수분할다중화하여 일괄 송신하는 송신 모듈을 포함하는 점에 그 특징이 있다.
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公开(公告)号：KR1020110001994A
公开(公告)日：2011-01-06
申请号：KR1020100119037
申请日：2010-11-26
Applicant: 전자부품연구원
CPC classification number: H04W72/0453 , H04L27/2626 , H04W72/08
Abstract: PURPOSE: A wireless audio transmission device, a wireless audio speaker, a wireless audio transmission system, and a control method thereof are provided to simultaneously transmit an audio signal corresponding to a plurality of wireless audio speakers by using an orthogonal frequency division multiplexing method. CONSTITUTION: A wireless audio transmission system comprises a wireless audio transmission device(200) and at least one wireless audio speaker(400). The wireless audio transmission device performs a self initialization process. The wireless audio transmission device requests specific information from the wireless audio speaker. The wireless audio speaker transmits specific information in response to the request of the wireless audio transmission device. The wireless audio transmission device processes a sound source corresponding to the specific information by receiving the specific information from each wireless audio speaker. The wireless audio transmission device generates an audio stream about each wireless audio speaker.
Abstract translation: 目的：提供无线音频传输设备，无线音频扬声器，无线音频传输系统及其控制方法，以通过使用正交频分复用方法同时发送与多个无线音频扬声器相对应的音频信号。 构成：无线音频传输系统包括无线音频传输设备（200）和至少一个无线音频扬声器（400）。 无线音频发送装置执行自初始化处理。 无线音频传输设备从无线音频扬声器请求特定信息。 无线音频扬声器响应于无线音频传输设备的请求发送特定信息。 无线音频传输设备通过从每个无线音频扬声器接收特定信息来处理与特定信息相对应的声源。 无线音频传输设备生成关于每个无线音频扬声器的音频流。
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公开(公告)号：KR1020100036433A
公开(公告)日：2010-04-08
申请号：KR1020080095670
申请日：2008-09-30
Applicant: 전자부품연구원
CPC classification number: H04H60/32 , H04H20/16 , H04H20/47 , H04H20/88 , H04H2201/12
Abstract: PURPOSE: An apparatus and a method for estimating the spectrum occupation of a DRM receiver are provided to simplify the synchronization and the channel estimation by estimating the occupied bandwidth through the calculation of average power. CONSTITUTION: A share bandwidth estimation apparatus(10) of DRM(Digital Radio Mondiale) receiver includes a mode detector(100), an operator(200) and a parameter estimator(300). The mode detector detects a transmission mode of a received signal, and the operator calculates the average power of a sub carrier for the received signal in a detection bandwidth. Plural detection bandwidths are set up according to the transmission mode, and the parameter estimator estimates the share bandwidth parameter of the received signal through the average power.
Abstract translation: 目的：提供一种用于估计DRM接收机的频谱占用的装置和方法，以通过通过计算平均功率估计占用带宽来简化同步和信道估计。 构成：DRM（Digital Radio Mondiale）接收机的共享带宽估计装置（10）包括模式检测器（100），运算符（200）和参数估计器（300）。 模式检测器检测接收信号的传输模式，并且操作者在检测带宽中计算接收信号的子载波的平均功率。 根据传输模式设置多个检测带宽，参数估计器通过平均功率估计接收信号的共享带宽参数。
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公开(公告)号：KR1020090124189A
公开(公告)日：2009-12-03
申请号：KR1020080050252
申请日：2008-05-29
Applicant: 전자부품연구원
CPC classification number: H04S7/308 , H04L5/0007 , H04L5/0042 , H04L5/006 , H04R2201/028 , H04R2205/024 , H04R2420/07 , H04B7/24 , H04J11/00 , H04W4/38
Abstract: PURPOSE: A wireless audio transmission device using OFDM, a wireless audio speaker, a wireless audio transmitter system and a control method thereof are provided to prevent the delay between channels by transmitting the audio signal through OFDMA(Orthogonal Frequency Division Multiple Access). CONSTITUTION: A receiver(200) receives a plurality of characteristic information from a plurality of wireless audio speakers(400). A transmitting module assigns a subcarrier different about each speaker with reference to the characteristic information. The transmitting module transmits the audio data through OFDM. The receiver modulates the signal received from a plurality of wireless audio speakers and supplies the specific information to the transmitting module.
Abstract translation: 目的：提供使用OFDM的无线音频传输设备，无线音频扬声器，无线音频发射机系统及其控制方法，以通过OFDMA（正交频分多址）发送音频信号来防止信道之间的延迟。 构成：接收器（200）从多个无线音频扬声器（400）接收多个特征信息。 参考特征信息，发送模块分配与每个说话者不同的副载波。 发送模块通过OFDM发送音频数据。 接收器调制从多个无线音频扬声器接收的信号，并将特定信息提供给发送模块。
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公开(公告)号：KR1020090121962A
公开(公告)日：2009-11-26
申请号：KR1020080048141
申请日：2008-05-23
Applicant: 전자부품연구원
IPC: H04B7/04
CPC classification number: H04L1/0631 , H04L25/0204
Abstract: PURPOSE: An apparatus and a method for detecting time variable channel temporal space block encoding data are provided to detect data in which interference is removed from data transmitted from a time variable channel. CONSTITUTION: The first estimator(110) estimates the first temporary data symbol from a received signal. The second estimator(120) estimates the second interference cancellation data symbol and the first interference cancellation data symbol. A determination unit(130) compares whether the first temporary data symbol is equal to the first interference cancellation data symbol. The determination unit determines the first final data symbol with the second final data symbol according to a comparison result.
Abstract translation: 目的：提供一种用于检测时间可变信道时间空间块编码数据的装置和方法，用于检测从时间可变信道发送的数据中去除干扰的数据。 构成：第一估计器（110）从接收信号估计第一临时数据符号。 第二估计器（120）估计第二干扰消除数据符号和第一干扰消除数据符号。 确定单元（130）比较第一临时数据符号是否等于第一干扰消除数据符号。 确定单元根据比较结果用第二最终数据符号确定第一最终数据符号。
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Patent Agency Ranking
公开(公告)号：KR100871870B1
公开(公告)日：2008-12-03
申请号：KR1020070092131
申请日：2007-09-11
Applicant: 전자부품연구원
IPC: H04L27/26
CPC classification number: H04L27/2662 , H04B7/0413
Abstract: An OLA(Overlap and Add) apparatus and an OLA method are provided to improve interference of a symbol and a carrier due to the generation of an STO(Symbol Timing Offset) by selectively performing the OLA according to the STO bidirectionally, forward, or backward. An OLA apparatus for an OFDM system includes a reference symbol timing detection unit(310), and a D-OLA unit(320). The reference symbol timing detection unit detects an initial point of the receiving symbol vector y' consisting of Nzp 0 and the N transmission symbols which are digital-modulated. The D-OLA unit outputs the vector robust to interference between the symbol and the carrier by performing the forward OLA of the Ni y', the backward OLA of the Nb y', and the bidirectional OLA of the y'.
Abstract translation: 提供OLA（重叠和添加）装置和OLA方法，以通过根据STO双向，前向或后向选择性地执行OLA，由于产生STO（符号定时偏移）而改善符号和载体的干扰 。 用于OFDM系统的OLA装置包括参考符号定时检测单元（310）和D-OLA单元（320）。 参考符号定时检测单元检测由Nzp 0组成的接收符号向量y'和被数字调制的N个传输符号的初始点。 D-OLA单元通过执行Ni y'的前向OLA，Nb y'的后向OLA和y'的双向OLA，输出鲁棒的符号和载波之间的干扰的向量。
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公开(公告)号：KR101873675B1
公开(公告)日：2018-07-03
申请号：KR1020170010930
申请日：2017-01-24
Applicant: 전자부품연구원
IPC: H04N21/233 , H04N21/439
CPC classification number: H04N21/233 , H04N21/439 , H04N21/4394
Abstract: 네트워크기반 AVB 시스템에서오디오콘텐츠정보전송방법이제공된다. 본발명의실시예에따른콘텐츠정보전송방법은, 네트워크기반콘텐츠전송프로토콜에사용되는데이터유닛에오디오콘텐츠에대한정보를수록하여전송하는한다. 이에의해, 네트워크기반 AVB 시스템에서 Listener가다수의 Talker들이전송하고있는오디오콘텐츠와다음에전송할오디오콘텐츠에대한관련정보를수신하여처리할수 있게된다.
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公开(公告)号：KR101809366B1
公开(公告)日：2017-12-14
申请号：KR1020160067067
申请日：2016-05-31
Applicant: 전자부품연구원
Abstract: 간편한상품주문을위한포터블장치가제공된다. 본발명의실시예에따른포터블장치는, 상품이표시되는디스플레이, 상품에대한주문을입력받는입력부, 상품을판매하는판매자서버와통신하는통신부및 디스플레이에상품을다른상품들과나열하지않고단독으로표시하고주문을통신부를통해판매자서버로전송하는통신부를포함한다. 이에의해, 간략화된상품정보제공과간편한상품주문이가능한포터블장치를통해, 사용자가상품을손쉽게선택하고간단하게상품주문을할수 있게된다.
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公开(公告)号：KR1020170111145A
公开(公告)日：2017-10-12
申请号：KR1020160036021
申请日：2016-03-25
Applicant: 전자부품연구원
Abstract: 블럭연결타입의멀티디스플레이시스템및 그동작방법이제공된다. 본발명의실시예에따른멀티디스플레이시스템은, 연결을통해하나의디스플레이를구성하며, 전체영상으로부터분할된부분영상들을나누어표시하는 DM들및 DM들로부터위치관계들에대한정보를수신하여 DM들의위치관계들을파악하고파악된위치관계들을기초로부분영상들을 DM들에나누어전송하는플레이어를포함한다. 이에의해, 시스템구성의간편함은물론 DM의이동에따라자동으로적응적인재구성이가능해진다.
Abstract translation: 提供了一种块连接类型的多显示器系统及其操作方法。 根据本发明系统的实施例的多显示，弥补在连接的显示器，并接收来自所述DM和DM指示将来自DM的整体图像划分的部分图像的位置关系的信息 并且玩家抓住位置关系并基于确定的位置关系将局部图像划分为DM。 这使得可以根据DM的移动以及系统配置的简单性自动且自适应地重新配置。
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