公开(公告)号：KR1020100036432A

公开(公告)日：2010-04-08

申请号：KR1020080095669

申请日：2008-09-30

Applicant: 전자부품연구원

Inventor： 권기원 ,  박경원 ,  김현식 ,  이경택 ,  김성준 ,  백종호

IPC: H04N7/08 ,  H04H60/23 ,  H04H20/65

CPC classification number: H04N21/4344 ,  G08G1/092 ,  H04H20/55 ,  H04H20/86 ,  H04H2201/12 ,  H04N21/488

Abstract: PURPOSE: A DRM(Digital Radio Module) base TPEG(Transport Protocol Experts Group) data source, the receiving device, and the method of transmission and receiving method transmit TPEG data through the AM infra while offering the TPEG service through DRM. CONSTITUTION: A DRM base TPEG data system comprises a DRM base TPEG data transmitter(20) and DRM base TPEG data receiver. The DRM base TPEG data source comprises an encoder(210), and a multiplexer(220) and a transmitter(230). Encoder is created TPEG data. The multiplexer constitutes the DRM packet. The transmission unit transmits a message the DRM packet.

Abstract translation: 目的：DRM（数字无线电模块）基地TPEG（传输协议专家组）数据源，接收设备和传输和接收方法通过AM发送TPEG数据，同时通过DRM提供TPEG服务。 构成：DRM基地TPEG数据系统包括DRM基地TPEG数据发射机（20）和DRM基地TPEG数据接收机。 DRM基本TPEG数据源包括编码器（210）和多路复用器（220）和发射机（230）。 编码器创建TPEG数据。 复用器构成DRM数据包。 发送单元发送消息DRM数据包。

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

Inventor： 권기원 ,  박경원 ,  김현식 ,  이경택 ,  김성준 ,  백종호

IPC: H04H60/32 ,  H04H20/16 ,  H04H20/88 ,  H04H20/47

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。

公开(公告)号：EP3391622A1

公开(公告)日：2018-10-24

申请号：EP16825539.6

申请日：2016-12-16

Applicant: TDF

Inventor： VINCENT, David ,  FAGUE, Dimitri ,  CANNIEUX, Laurent

IPC: H04L29/08 ,  H04W4/00 ,  H04H20/20 ,  H04H20/24 ,  H04H60/41 ,  H04H60/51

CPC classification number: H04W4/02 ,  G06F17/30 ,  H04H20/20 ,  H04H20/22 ,  H04H20/24 ,  H04H20/26 ,  H04H60/41 ,  H04H60/51 ,  H04H60/85 ,  H04H2201/12 ,  H04H2201/20 ,  H04H2201/37 ,  H04H2201/60 ,  H04L65/4084 ,  H04L65/80 ,  H04L67/16 ,  H04N21/00 ,  H04W4/021 ,  H04W48/14 ,  H04W48/16

Abstract: The invention relates to a processing system and method. According to the method of the invention, a terminal (UE) can be informed about the availability of at least one network at the location of the terminal that can broadcast multimedia content to the terminal, and a pre-determined plurality of networks can broadcast the multimedia content. The terminal is connected to a system (SYST) comprising a database storing, for each geographical area among a plurality of geographical areas, a list comprising the individual availability indicators of the networks among the pre-determined plurality of networks in the geographical area.

公开(公告)号：EP1815622B1

公开(公告)日：2017-11-01

申请号：EP05815700.9

申请日：2005-11-07

Applicant: TDF

Inventor： JAHAN, Bruno ,  LOUIN, Pierrick ,  URCUN, Pierre

IPC: H04H20/30 ,  H04H20/22 ,  H04H20/72

CPC classification number: H04H20/30 ,  H04H20/22 ,  H04H20/72 ,  H04H2201/12 ,  H04H2201/186

公开(公告)号：EP3148111A1

公开(公告)日：2017-03-29

申请号：EP16189430.8

申请日：2016-09-19

Applicant: FUJITSU LIMITED

Inventor： Kono, Taki

IPC: H04L7/06 ,  H04B7/08 ,  H04H60/00 ,  H04L27/00

CPC classification number: H04B10/60 ,  H04B7/02 ,  H04H40/09 ,  H04H60/00 ,  H04H2201/12 ,  H04L5/0048 ,  H04L7/06 ,  H04L27/00

Abstract: A non-transitory computer-readable recording medium on which a program is recorded for a causing a processor to execute a demodulation process. The demodulation process includes detecting a preamble of a wireless signal transmitted from a first transmission station by way of a short wavelength carrier wave, extracting a first signal superimposed on the short wavelength carrier wave, the first signal being extracted from a wireless signal that is identified in accordance with the detection of the preamble, extracting a second signal superimposed on a carrier wave transmitted from a second transmission station, and performing demodulation on a target demodulation signal obtained by superimposing the first signal on the second signal.

Abstract translation: 一种非暂时性的计算机可读记录介质，在其上记录有使处理器执行解调处理的程序。 解调处理包括通过短波载波检测从第一传输站发送的无线信号的前同步码，提取叠加在短波载波上的第一信号，从被识别的无线信号中提取第一信号 根据前同步码的检测，提取叠加在从第二发送站发送的载波上的第二信号，并对通过将第一信号叠加在第二信号上而得到的目标解调信号进行解调。

公开(公告)号：EP2471184A1

公开(公告)日：2012-07-04

申请号：EP10739616.0

申请日：2010-08-03

Applicant: Robert Bosch GmbH

Inventor： LEHR, Carsten ,  NYENHUIS, Detlev ,  RISSE, Marcus

IPC: H04B1/00 ,  H04H40/27

CPC classification number: H04B1/0064 ,  H04H40/27 ,  H04H2201/11 ,  H04H2201/12 ,  H04H2201/20

Abstract: The invention relates to a method for directly sampling a plurality of radio bands, comprising a step of receiving a first radio band (331) via a first interface and at least one further radio band (332, 333) via at least one further interface, wherein the first radio band (331) and the at least one further radio band (332, 333) are each associated with different frequency ranges, and the first radio band or the at least one further radio band is a DAB band. According to the invention, a selection signal is received (104) via an interface, wherein the selection signal indicates whether further processing of the first radio band (331) and/or the at least one further radio band (332, 333) takes place. Depending on the selection signal, the first radio band (331) is sampled at a common sampling frequency and/or the at least one further radio band (332, 333) is sampled at the common sampling frequency.

公开(公告)号：EP1370017A1

公开(公告)日：2003-12-10

申请号：EP02012734.6

申请日：2002-06-07

Applicant: Sony International (Europe) GmbH

Inventor： Schill, Dietmar, Sony International (Europe) GmbH ,  Wildhagen, Jens, Sony International (Europe) GmbH

IPC: H04H1/00 ,  H04B1/10 ,  H04L27/26

CPC classification number: H04L27/2647 ,  H04B1/1081 ,  H04H2201/12 ,  H04L25/0204 ,  H04L2025/03414 ,  H04L2025/03522

Abstract: A receiver for simulcast signals and a method for receiving a simulcast signal transmitted via a distorted channel is described. By means of a bandpass filter, an initial digital signal is separated from the simulcast signal. This initial digital signal is subtracted from said simulcast signal, and as a result of the subtraction, an intermediate analogue signal is obtained. With respect to the initial digital signal, a channel estimation and equalization is performed. Thus, it is possible to estimate the channel's frequency response, to remove channel impairments due to frequency selective fading and/or to non-symmetric receiver input filter, and to generate a corrected digital signal. Said corrected digital signal, or a signal derived therefrom, is added to said intermediate analogue signal, in order to obtain the simulcast signal's analogue signal part.

Abstract translation: 描述了用于同播信号的接收机和用于接收经由失真信道发送的同播信号的方法。 通过带通滤波器，初始数字信号与联播信号分离。 从所述同播信号中减去该初始数字信号，作为减法的结果，获得中间模拟信号。 对于初始数字信号，执行信道估计和均衡。 因此，可以估计信道的频率响应，以消除由于频率选择性衰落引起的信道损伤和/或去除非对称接收机输入滤波器，并产生校正的数字信号。 为了获得联播信号的模拟信号部分，将所述校正的数字信号或从其导出的信号添加到所述中间模拟信号。

公开(公告)号：EP3281316A1

公开(公告)日：2018-02-14

申请号：EP16775985.1

申请日：2016-04-08

Applicant: Nautel Limited

Inventor： SCHMID, Philipp ,  WALKER, Brian

IPC: H04H20/95 ,  H04H20/30 ,  H04H20/46 ,  H04H60/27 ,  H04J11/00

CPC classification number: H04L27/2621 ,  H04H20/00 ,  H04H2201/12 ,  H04H2201/183 ,  H04L27/2623 ,  H04L27/2624

Abstract: A system for peak-to-average-power ratio (PAPR) reduction of a frequency shifted plurality of digital broadcast signals taking into account the combined signal peaks in order to transmit the signals more efficiently in a single broadcast transmission system. The PAPR algorithm takes into account a rotating constellation phase offset for the shifted signals corresponding to the amount of applied frequency shift. In the case of a dual sideband In-Band-On-Channel (IBOC) signal typically used in conjunction with an FM carrier in the center, the sidebands can be interleaved to create a new IBOC signal definition and take the place of the FM carrier for an all-digital transmission that is backward compatible with IBOC receivers allowing for a gradual migration to all digital broadcasting.

公开(公告)号：EP1627479B1

公开(公告)日：2016-07-06

申请号：EP04767174.8

申请日：2004-05-25

Applicant: TDF

Inventor： LANOISELEE, Marc ,  LOUIN, Pierrick

IPC: H04H20/46 ,  H04L27/26

CPC classification number: H04H20/46 ,  H04H20/22 ,  H04H2201/12 ,  H04H2201/186 ,  H04L27/2601

公开(公告)号：EP1935103A1

公开(公告)日：2008-06-25

申请号：EP05793001.8

申请日：2005-10-14

Applicant: Nokia Corporation

Inventor： COERSMEIER, Edmund ,  KOSAKOWSKI, Martin ,  MENDE, Stefan ,  XU, Yu-huan ,  HINZMANN, Thomas ,  HARTIG LARSEN, Jesper

IPC: H04B1/38 ,  H04M1/60 ,  H04Q1/22 ,  H04Q1/44 ,  H04R1/10

CPC classification number: H04M1/6058 ,  H04B1/3805 ,  H04H2201/12

Abstract: The invention relates to an electronic device (50) comprising a headset connector (51) adapted to connect a headset (56) to the electronic device (50) and an active amplifier circuit (54) connected to the headset connector (51). The active amplifier circuit (54) is adapted to amplify radio signals received by an antenna (56), which is connected to the electronic device (50) via the headset connector (51). The invention relates equally to a chip comprising such an active amplifier circuit (54), to a system comprising the electronic device and to a corresponding method for receiving radio signals at such an electronic device.