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11. 发明申请

WO02045273A2 COMMUNICATION SYSTEM 审中-公开
标题翻译：通讯系统
公开(公告)号：WO02045273A2
公开(公告)日：2002-06-06
申请号：PCT/GB2001/005306
申请日：2001-11-30
IPC分类号： H04L29/06 , A63H3/36 , G01S5/30 , G10L19/00 , G10L19/018 , G10L19/14 , H04B7/26 , H04H20/31 , H04M1/247 , H04M1/253 , H04M1/57 , H04M11/00 , H04N5/60 , H04N7/08 , H04N7/088 , H04B
CPC分类号： H04H20/31 , A63H3/365 , A63H2200/00 , G01S5/30 , G10L19/018 , H04H20/93 , H04H60/52 , H04H60/80 , H04M1/2155 , H04M1/253 , H04M1/274516 , H04M1/578 , H04M1/72547 , H04M1/72561 , H04N5/607 , H04N7/08 , H04N7/088 , H04N21/25841 , H04N21/25891 , H04N21/41407 , H04N21/42684 , H04N21/44222 , H04N21/4758 , H04N21/6582
摘要： There is described a communication system in which data is received by and/or transmitted to a telecomunications apparatus using an acoustic data channel. In embodiments, the data is encoded within the audio track of a media broadcast or other public broadcast. The invention has particular, but not exclusive, relevance to a cellular communication system. There are also described acoustic position detection systems for determining the position of a telecomunications apparatus.
摘要翻译：描述了一种通过使用声学数据信道将数据接收和/或传送到电信设备的通信系统。在实施例中，数据被编码在媒体广播或其他公共广播的音频轨道内。本发明对蜂窝通信系统具有特定但并不排他的相关性。还描述了用于确定电信设备的位置的声学位置检测系统。

12. 发明申请

WO0228781A2 APPARATUS AND PROCESS FOR EXTRACTING AND RECOVERING METALS FROM AQUEOUS SOLUTIONS 审中-公开
标题翻译：从水溶液中提取和回收金属的装置和方法
公开(公告)号：WO0228781A2
公开(公告)日：2002-04-11
申请号：PCT/US0131116
申请日：2001-10-04
申请人： HYDRO MET LLC
发明人： DICAMILLO HENERY L , IGNAT JOSEPH N , WEAKLY EDWARD C
IPC分类号： C02F1/28 , C02F1/42 , C02F1/463 , C02F1/467 , C02F1/48 , C02F1/66 , C02F9/00 , H04H20/31 , C02F1/461 , C02F1/62 , C25C1/00
CPC分类号： H04H20/31 , C02F1/283 , C02F1/42 , C02F1/463 , C02F1/4678 , C02F1/48 , C02F1/66 , C02F2101/163 , C02F2101/20 , C02F2101/206 , C02F2103/10
摘要： An apparatus and process for recovering metals from aqueous solutions by passing an aqueous solution (14), which contains dissolved metals, into a space (16) between two elongated electrodes (20, 30) of a treatment chamber (10). A very high voltage electric field is created in the treatment chamber (10) and is accompanied by a very small trickle current charge (i) to enhance adsorption, polarization, ion exchange or to otherwise agglomerate the dissolved metal, which is then recovered by filtering, adsorbing, exchanging or otherwise separating the metal from the water.
摘要翻译：一种通过使含有溶解金属的水溶液（14）进入处理室（10）的两个细长电极（20,30）之间的空间（16）中从水溶液中回收金属的装置和方法。在处理室（10）中产生非常高的电压电场，并伴随有非常小的涓流电流（i）以增强吸附，极化，离子交换或以其他方式附聚溶解的金属，然后通过过滤回收，从水中吸附，交换或以其他方式分离金属。

13. 发明申请

WO01026110A1 EMBEDDING AND DETECTING WATERMARKS IN ONE-DIMENSIONAL INFORMATION SIGNALS 审中-公开
标题翻译：在一维信息信号中嵌入和检测水印
公开(公告)号：WO01026110A1
公开(公告)日：2001-04-12
申请号：PCT/EP2000/009606
申请日：2000-09-28
IPC分类号： G11B20/10 , G10L19/018 , G11B20/00 , H04H20/31 , H04N5/913
CPC分类号： H04H20/31 , G10L19/018 , G11B20/00086 , G11B20/00884 , G11B20/00891 , H04N2005/91335
摘要： A method and arrangement are disclosed for watermarking in one-dimensional information signals, particularly audio signals. The watermark, e.g. a binary signal (W(t)) having uniformly distributed zeroes and ones, is embedded in the audio signal (I(t)) by warping (23) salient points such as zero crossings (22) to such an extent that the statistics of the time distribution of the salient points of the watermarked signal (Iw(t)) are significantly changed with respect to the watermark signal.
摘要翻译：公开了用于在一维信息信号，特别是音频信号中进行水印的方法和装置。水印例如具有均匀分布的零和一个的二进制信号（W（t））通过使诸如过零点（22）的突出点（23）的弯曲（23）嵌入到音频信号（I（t））中，水印信号（Iw（t））的突出点的时间分布相对于水印信号显着改变。

14. 发明申请

WO0106755A2 IMPROVED STEALTHY AUDIO WATERMARKING 审中-公开
标题翻译：改进的STEALTHY音频水印
公开(公告)号：WO0106755A2
公开(公告)日：2001-01-25
申请号：PCT/US0019397
申请日：2000-07-13
申请人： MICROSOFT CORP
发明人： KIROVSKI DARKO , MALVAR HENRIQUE
IPC分类号： G11B20/00 , H04H20/31 , H04N5/913 , H04N1/32
CPC分类号： H04H20/31 , G11B20/00086 , G11B20/00884 , H04N2005/91335
摘要： Described herein is audio watermarking technology for inserting and detecting watermarks in audio signals, such as a music clip. The watermark identifies the content producer, providing a signature that is embedded in the audio signal and cannot be removed. The watermark is designed to survive all typical kinds of processing and malicious attacks. In one described implementation, a watermarking system employs chess spread-spectrum sequences (i.e., "chess watermarks") to improve the balance of positive and negative chips in the watermarking sequences. The balance is not imposed in an orderly fashion, which might make the watermark sequence more easily detectable to an attacker, but in a pseudo-random fashion. In that way, better sequence balance is achieved while preserving its randomness for an attacker without knowledge of the keys. In another described implementation, a watermarking system employs an energy-level trigger to determine whether to skip encoding of a portion of a watermark within a given time span of an audio clip. If a large discrepancy in energy levels exists over a given time frame, then the frame is not watermarked, to avoid audible time-dispersion of artifacts due to spectral modifications (which are similar to "pre-echo" effects in audio coding). In another described implementation, a watermarking system begins encoding of a watermark at a variable position after the beginning of an audio clip.
摘要翻译：这里描述了用于在诸如音乐剪辑的音频信号中插入和检测水印的音频水印技术。水印识别内容制作者，提供嵌入在音频信号中的签名，不能被删除。水印被设计成能够经受所有典型的处理和恶意攻击。在一个描述的实现中，水印系统采用棋牌扩频序列（即“象棋水印”）来改善水印序列中正和负码片的平衡。平衡不是以有序的方式强加的，这可能使攻击者更容易检测到水印序列，而是以伪随机的方式。以这种方式，在不知道钥匙的情况下，为攻击者保持其随机性，实现更好的序列平衡。在另一描述的实现中，水印系统采用能级触发来确定是否在音频剪辑的给定时间间隔内跳过水印的一部分的编码。如果在给定的时间帧内存在大的能量差异，则帧不会被加水印，以避免由于频谱修改（类似于音频编码中的“前置回声”效应）的人为因素的可听时间分散。在另一个描述的实现中，水印系统开始在音频剪辑开始之后的可变位置处编码水印。

15. 发明申请

WO99063688A1 TRAFFIC VERIFICATION SYSTEM 审中-公开
标题翻译：交通验证系统
公开(公告)号：WO99063688A1
公开(公告)日：1999-12-09
申请号：PCT/AU1999/000439
申请日：1999-06-01
IPC分类号： H04H20/31 , H04H1/00
CPC分类号： H04H20/31
摘要： Disclosed is a method and apparatus for inserting a data signal into an audio signal to provide a tagged signal. The method includes removing a band of frequencies centred at a predetermined notch frequency from the audio signal, spectrally shaping the data signal so that it takes on the precise shape and magnitude of the envelope of the audio signal at the removed band, and inserting the shaped data signal into the removed band of the audio signal. The method may be used to identify an audio segment or it may be used to encode the audio signal with other desired data. The method of the invention provides for the data signal to be virtually inaudible to the listener of the audio segment yet robust enough to survive severe audio signal processing.
摘要翻译：公开了一种用于将数据信号插入到音频信号中以提供标记信号的方法和装置。该方法包括从音频信号中移除以预定陷波频率为中心的频带，对数据信号进行频谱整形，使得其在去除频带处接收音频信号的包络的精确形状和幅度，并将成形数据信号进入音频信号的去除频带。该方法可用于识别音频段，或者可以将其用于用其他所需数据对音频信号进行编码。本发明的方法提供了数据信号实际上听不到音频段的收听者，而且足够坚固，可以承受严重的音频信号处理。

16. 发明申请

WO9945707A3 WATERMARK DETECTION 审中-公开
标题翻译：水印检测
公开(公告)号：WO9945707A3
公开(公告)日：1999-11-25
申请号：PCT/IB9900359
申请日：1999-03-02
申请人： KONINKL PHILIPS ELECTRONICS NV , PHILIPS SVENSKA AB , HAITSMA JAAP A , KALKER ANTONIUS A C M , DENISSEN ADRIANUS J M
发明人： HAITSMA JAAP A , KALKER ANTONIUS A C M , DENISSEN ADRIANUS J M
IPC分类号： H04N7/08 , G06K9/00 , G06K9/36 , G06K9/46 , G06T1/00 , G06T7/00 , G09C5/00 , H04H1/00 , H04H20/31 , H04N1/32 , H04N1/387 , H04N5/913 , H04N5/92 , H04N7/081 , H04N7/26
CPC分类号： G06T1/0071 , H04H20/31 , H04H2201/50 , H04N5/913 , H04N2005/91335
摘要： An improved method and arrangement for detecting a watermark in an information (e.g. image or video) signal are disclosed. The detection is more reliable and less vulnerable to image processing by subjecting the suspect image (q) and the watermark to be detected (w) to Symmetrical Phase Only Matched Filtering (24-28, 16) prior to detecting (29) the amount of correlation (d) between said signals.
摘要翻译：公开了一种用于检测信息（例如图像或视频）信号中的水印的改进方法和装置。通过在检测到（29）检测到（29）检测到的（29）数据之前将可疑图像（q）和水印检测到（w）到对称相位匹配滤波（24-28,16），检测更加可靠并且不易受到图像处理的影响所述信号之间的相关性（d）。

17. 发明申请

WO99045705A3 EMBEDDING AUXILIARY DATA IN A SIGNAL 审中-公开
标题翻译：辅助数据在信号中的整合
公开(公告)号：WO99045705A3
公开(公告)日：1999-11-18
申请号：PCT/IB1999/000348
申请日：1999-03-02
IPC分类号： H04N7/08 , G06K9/00 , G06K9/36 , G06K9/46 , G06T1/00 , G06T7/00 , G09C5/00 , H04H1/00 , H04H20/31 , H04N1/32 , H04N1/387 , H04N5/913 , H04N5/92 , H04N7/081 , H04N7/26
CPC分类号： G06T1/0071 , H04H20/31 , H04H2201/50 , H04N5/913 , H04N2005/91335
摘要： A method is disclosed for embedding auxiliary data in a signal. The data is encoded into the relative position or phase of one or more basic watermark patterns. This allows multi-bit data to be embedded by using only one or a few distinct watermark patterns.
摘要翻译：本发明涉及一种用于将辅助数据集成到信号中的方法。数据以一个或多个基本水印图案的相对位置或相位进行编码。该方法使得仅使用水印图案或有限数量的不同水印图案来集成多位数据成为可能。

18. 发明申请

WO9827504A3 METHOD AND APPARATUS FOR EMBEDDING AUXILIARY DATA IN A PRIMARY DATA SIGNAL 审中-公开
标题翻译：用于在主数据信号中嵌入辅助数据的方法和装置
公开(公告)号：WO9827504A3
公开(公告)日：1998-09-03
申请号：PCT/US9721952
申请日：1997-12-02
申请人： SOLANA TECHNOLOGY DEV CORP
发明人： LEE CHONG U , MOALLEMI KAMRAN , WARREN ROBERT L
IPC分类号： H04K1/00 , G10L19/00 , H04B1/66 , H04B1/707 , H04B15/04 , H04H20/31 , H04J7/00 , H04J9/00 , H04J13/00 , H04J99/00 , H04K1/02 , G06K
CPC分类号： H04H20/31 , G10L19/018 , H04B1/665 , H04B1/707 , H04B15/04 , H04J7/00 , H04J9/00 , H04J13/00 , H04J13/0077 , H04J15/00
摘要： Auxiliary data (x(m)) is transported in a primary data signal (s(t)) by hiding the data in the form of colored noise. The colored noise has a spectrum that simulates the spectrum of the primary data signal. The data to be transported is first converted to a spread spectrum signal d(t). The primary data signal is analyzed to determine its spectral shape. The same spectral shape is imparted to the spread spectrum signal, which is then combined with the primary data signal for transmission. The spectral shaping can be performed using time domain modeling and synthesis such as linear predictive coding (88, 94) or by using subband coding techniques such as fast Fourier transforms (174). A plurality of different auxiliary information streams (280, 290, 300) can be transported on the primary data signal. By adjusting the gain (287, 297, 307, 309) of individual spread spectrum signal carrier(s) and the power (96) of the colored noise, the auxiliary information stream(s) can be rendered at any desired level below or above an interference threshold in the primary data signal.

19. 发明申请

WO2019170988A1 PROCÉDÉ DE CONTRÔLE DE L'ÉMISSION D'UN MESSAGE SONORE DE SÉCURITÉ DANS UN VÉHICULE 审中-公开
公开(公告)号：WO2019170988A1
公开(公告)日：2019-09-12
申请号：PCT/FR2019/050474
申请日：2019-03-04
申请人： CONTINENTAL AUTOMOTIVE FRANCE , CONTINENTAL AUTOMOTIVE GMBH
发明人： NICOLAS, Michel , EL HASSAN, Majed
IPC分类号： H04H20/31
摘要： Procédé de contrôle de l'émission d'un message sonore de sécurité à destination des occupants de l'habitacle d'un véhicule, ledit procédé comprenant les étapes suivantes : • l'émission (E1) d'un signal audio comprenant le message sonore de sécurité et, mixé audit message sonore de sécurité, un signal d'identification comprenant un message audio numérique d'identification émis en boucle et modulé en fréquence, • l'enregistrement (E2) du son ambiant dans l'habitacle au moyen d'un microphone, • le filtrage (E3) et la démodulation (E4) du signal pour reconstituer le signal d'identification, • l'analyse (E5) du signal d'identification reconstitué pour déterminer : – si l'identifiant unique correspondant au message sonore de sécurité émis s'y trouve, et – si la durée d'émission continue du signal d'identification est bien égale à la durée connue du signal sonore de sécurité, • la détermination (E6) de ce que le message sonore de sécurité a bien été émis intégralement, ou non, en fonction de l'étape d'analyse.

20. 发明申请

WO2019161228A1 FM SYSTEM MODES FOR HD RADIO 审中-公开
公开(公告)号：WO2019161228A1
公开(公告)日：2019-08-22
申请号：PCT/US2019/018250
申请日：2019-02-15
申请人： IBIQUITY DIGITAL CORPORATION
发明人： MILBAR, Marek
IPC分类号： H04H20/31 , H04H20/95 , H04L1/00
摘要： Service modes specify how digital content is formatted in sidebands of an FM radio channel. In an improved service mode, encoded bits can be distributed between an in-band encoded component and a cross-band encoded component, where the encoded bits in the in-band encoded component are desynchronized by a specified duration with respect to the encoded bits in the cross-band encoded component. The encoded bits in the in-band encoded component can be allocated into frequency partitions that are used by a legacy service mode, such as MP1 or MP3, which can provide backward compatibility with the legacy service mode. The encoded bits in the cross-band encoded component can be allocated into frequency partitions that are not used by the legacy service mode, and are found in the opposite sideband, compared with the legacy service mode, which can provide time diversity within a single sideband.

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