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101. 发明公开

EP0138548A3 Analog-to-digital encoder and digital-to-analog decoder 失效
标题翻译：模拟数字编码器和数字到模拟解码器
公开(公告)号：EP0138548A3
公开(公告)日：1988-01-27
申请号：EP84306849
申请日：1984-10-08
申请人： DOLBY LABORATORIES LICENSING CORPORATION
发明人： Todd, Craig C. , Gundry, Kenneth James
IPC分类号： H04B14/06
CPC分类号： H03G9/005 , H03G5/16 , H03G9/025 , H03M3/022 , H04B1/62 , H04B14/064
摘要： In the encoder an audio input signal is firstly given an adaptive pre-emphasis characteristic by a pre-processing circuit (16) and is then converted to a digital signal for transmission by a delta-modulator (22). In order to minimise the digital bit rate the delta-modulator (22) is rendered adaptive by deriving a step-size control signal in a circuit (18) responsive to the slope of the input signal, and applying the control signal to vary the step-size of the delta-modulator (22). The bandwidth of the control signal is limited to say 50 Hz by the step-size circuit (18) itself or a subsequent low pass filter (24) in order to render the encoder insensitive to random step-size errors. The slow response of the control signal is compensated for by a delay circuit (20) preceding the delta-modulator (22). The corresponding decoder comprises an adaptive delta-modulator and a circuit complementary to the pre-processing circuit (16). In order to keep the decoder as simple as possible it has no step-size derivation circuit. Instead, the step-size control signal is transmitted in conjunction with the main digital signal by way of an analog to digital converter (26). In the encoder a complementary digital to analog converter is followed by another bandwidth limiting filter to reduce the effect of transmission bit errors. The slow response of the decoder control signal is compensated for by transmitting the step-size information from the , encoder with a time advance relative to the main digital signal.
摘要翻译：在编码器中，首先通过预处理电路（16）给音频输入信号赋予自适应预加重特性，然后将其转换为数字信号，以由Δ调制器（22）传输。为了使数字比特率最小化，增量调制器（22）通过响应于输入信号的斜率导出电路（18）中的步长控制信号而变为自适应，并且施加控制信号以改变步骤 Δ调制器（22）的尺寸。为了使编码器对随机步长误差不敏感，控制信号的带宽被步进电路本身或随后的低通滤波器（24）限制为50Hz。控制信号的缓慢响应由在delta调制器（22）之前的延迟电路（20）补偿。相应的解码器包括自适应增量调制器和与预处理电路（16）互补的电路。为了使解码器尽可能简单，它没有步长推导电路。相反，步进大小控制信号通过模数转换器（26）与主数字信号一起发送。在编码器中，互补数模转换器之后是另一个带宽限制滤波器，以减少传输位错误的影响。解码器控制信号的缓慢响应是通过以相对于主数字信号的时间提前从编码器发送步长信号来补偿的。

102. 发明公开

EP0240123A2 Digital encoder and decoder synchronization in the presence of data dropouts 失效
标题翻译：同步eine digitalen Kodierers und eines Dekodierers Anwesenheit vonDatenausfällen。
公开(公告)号：EP0240123A2
公开(公告)日：1987-10-07
申请号：EP87301412.0
申请日：1987-02-19
申请人： AT&T Corp.
发明人： Tomasevich, George Richard
IPC分类号： H04B14/06
CPC分类号： H04B14/068
摘要： Recovery from transmission errors is facilitated by initializing state variables to prescribed values in both a digital encoder used in transmitting a signal and a corresponding digital decoder used in receiving the signal when the transmission channel becomes inactive. Additionally, the values of the encoder and decoder state variables are held constant (via 2706, 2709, 2710, 2711) for up to a prescribed interval upon the transmission channel becoming inactive. The state variables are held constant until either the prescribed holding interval elapses or the transmission channel becomes active. If the prescribed holding interval elapses before the transmission channel becomes active the state variables are initialized to the prescribed values (via 2711). However, if the encoder or decoder transmission channel becomes active before the prescribed holding interval has elapsed, the encoder or decoder, respectively, returns to its normal operative state (via 2709) and the state variables are allowed to adapt.
摘要翻译：来自接收接入模块的分组分解器的样本（I'（k））被提供给可变速率逆量化器（2702,2703）和量化器适配单元（2701），该量化器适配单元选择用于生成其比例因子的适当电路。当在特定时隙中不存在分组时，量化差分样本与来自自适应预测器（2705）的样本估计相加（2704,2707）以产生具有噪声信号（2714）的多路复用重构样本（2708）。在传输通道不活动的情况下，编码器和解码器状态变量（2706）在被初始化之前保持恒定的规定间隔（2711），除非在恢复时间限制内（2709）恢复正常自适应操作。

103. 发明公开

EP0123456A3 A COMBINED INTRAFRAME AND INTERFRAME TRANSFORM CODING SYSTEM 失效
标题翻译：一个组合的内部和帧间变换编码系统
公开(公告)号：EP0123456A3
公开(公告)日：1986-12-30
申请号：EP84302109
申请日：1984-03-28
申请人： COMPRESSION LABS, INC.
发明人： CHEN WEN-HSIUNG , ELLIOTT JAMES PARKER , NEWELL ROBERT EDWIN GEORGE , NICHOLS RALPH EMERSON , RACKETT ALBERT EDWARDS
IPC分类号： H03M7/30 , B25J1/06 , G06T9/00 , H04B14/06 , H04N7/30 , H04N7/32 , H04N7/50 , H04N7/12
CPC分类号： G02B5/18 , A23V2002/00 , A63B21/00185 , A63B2022/0038 , H04N19/115 , H04N19/124 , H04N19/132 , H04N19/14 , H04N19/146 , H04N19/152 , H04N19/176 , H04N19/18 , H04N19/60 , H04N19/619 , A23V2250/056

104. 发明授权

EP0079658B1 Differential pulse code modulation transmission system 失效
标题翻译：差分脉码调制传输系统
公开(公告)号：EP0079658B1
公开(公告)日：1986-09-24
申请号：EP82201438.7
申请日：1982-11-15
申请人： Philips Electronics N.V.
发明人： Peters, Joseph Hubertus
IPC分类号： H04B14/06
CPC分类号： H03M7/3044

105. 发明公开

EP0078195A1 Procédé et système, de codage et décodage différentiel de données limitant la propagation des erreurs de transmission 失效
标题翻译：通过限制传输错误的传播的方法和系统，用于差分编码和数据的解码。
公开(公告)号：EP0078195A1
公开(公告)日：1983-05-04
申请号：EP82401899.8
申请日：1982-10-15
申请人： THOMSON-CSF
发明人： Catros, Jean-Yves
IPC分类号： H04B14/06 , H04N7/13
CPC分类号： H04N19/593 , H04B14/066
摘要： Le système de codage-décodage différentiel comporte dans la partie codeur un prédicteur (5) fournissant, à partir de la valeur reconstruite correspondant à une grandeur codée, la prédiction P pour la grandeur suivante X à coder, un quantificateur de l'erreur de prédiction d = X - P (20), et un quantificateur de prédiction (6) dont les sorties sont couplées à un allocateur de code (30), le code alloué transmis pour une grandeur X à coder étant fonction d'une part du niveau de quantification E 1 de l'erreur de prédiction d élaborée par le quantificateur d'erreur de prédiction (20), et d'autre part de la prédiction quantifiée P j élaborée par le quantificateur de prédiction (6); les codes alloués aux zones d'erreurs de prédiction successives correspondant aux prédictions P sont alloués toujours dans le même ordre, lorsque j varie, de la zone d'erreur de prédiction minimale à la zone d'erreur de prédiction maximale.
Application, notamment, au codage MICD des signaux de télévision numériques.

106. 发明公开

EP0065515A4 STABLE VORTEX GENERATING DEVICE. 失效
标题翻译：器具，用于产生稳定的纺丝。
公开(公告)号：EP0065515A4
公开(公告)日：1983-03-15
申请号：EP81901026
申请日：1980-11-10
申请人： VORTECH SCIENCES INC
发明人： HUGHES NATHANIEL
IPC分类号： H04B14/06 , B05B1/08 , B05B1/34 , B05B7/10 , B05B9/00 , B05B17/06 , F23D11/34 , H04N7/26 , H04N7/34
CPC分类号： B05B1/34 , B05B7/10 , B05B17/0692 , H04N19/593 , H04N19/90
摘要： Exceptional atomization of liquids is achieved by combining shock wave formation and vortex generation in a gas stream. In a vortex generating device, a flow passage (11) is aligned with a flow axis (14) connected between a fluid inlet (19) and a fluid outlet (28), and a plurality of tornado-like gas vortices are generated in the flow passage. In one embodiment, a restriction (41) is formed in the fluid inlet, and a source (89) of gas under sufficient pressure to cause sonic velocity at the restriction is connected to the inlet. In another embodiment, a restriction (26) is formed in a downstream portion of a flow passage, and a pair of auxiliary flow passages (32, 30, 33, 31) connect an upstream portion of the flow passage to the restriction. In another embodiment, a fluid outlet (28) has a concave semispherical surface opening into an ambient region. In another embodiment, a first annulus is formed in the flow passage (50) by a rod (54) and a second annulus is formed in the flow passage by the rod and a reduction (57) in cross-sectional area of the flow passage; a source (89) of atomizing gas under pressure and a source (86) of liquid under pressure to be atomized are both connected to the fluid inlet.

107. 发明公开

EP0073309A2 Compression et expansion (quantification) de signaux numériques de télévision à codage différentiel 失效
标题翻译：压缩和膨胀（Quantizierung）von digitalen differentnzcodierten Fernsehsignalen。
公开(公告)号：EP0073309A2
公开(公告)日：1983-03-09
申请号：EP82105354.3
申请日：1979-02-01
申请人： Etablissement Public de Diffusion dit "Télédiffusion de France" , Kretz, Francis , Boudeville, Jean-Louis
发明人： Kretz, Francis , Boudeville, Jean-Louis
IPC分类号： H04N7/13 , H04B14/06
CPC分类号： H03M3/042 , H04N19/124 , H04N19/50
摘要： Le codage des signaux de télévision à traiter ou transmettre sous forme numérique est effectué en utilisant la modulation d'impulsions codées différentielle.
La caractéristique de quantification varie en fonction de la valeur de prédiction P n . Les zones de prédiction ne sont pas symétriques par rapport à la mi-dynamique de la prédiction P n . Les caractéristiques de quantification sont des segments d'une caractéristique étendue.
摘要翻译： 1.一种压缩和扩展（量化）DPCM数字差分编码电视信号的过程，其中阈值和重建级别的值根据预测值Pn相对于当前要编码的点变化，变化范围预测值Pn被划分为预测区域Zi，其中i从1变化到k，阈值的值和与每个预测区间Zi相关联的重建级别Qi的集合，所述集合对于要被编码的样本的所有值Xn是不变的包含在区域Zi中的预测值Pn，所述集合从区域Zi变化到另一区域，每个集合Qi具有阈值和重建级别的值相同数量N，阈值和重建的负值和正极值不同于一个预测区域Z 1到另一个预测区间的水平，其特征在于预测区域Zi相对于动态区域不对称 c是预测值Pn的平均值。

108. 发明授权

EP2859635B1 METHOD FOR IDENTIFYING FAULT BY CURRENT DIFFERENTIAL PROTECTION AND DEVICE THEREOF 有权转让
公开(公告)号：EP2859635B1
公开(公告)日：2019-08-07
申请号：EP12878421.2
申请日：2012-06-06
申请人： ABB Schweiz AG
发明人： LI, Youyi , LIU, Kai , SU, Bin
IPC分类号： H02H3/28 , H04B14/06 , G01R31/327

109. 发明公开

EP3273600A1 FEEDBACK CONTROL SYSTEMS WITH PULSE DENSITY SIGNAL PROCESSING CAPABILITIES 审中-公开
标题翻译：具有脉冲密度信号处理能力的反馈控制系统
公开(公告)号：EP3273600A1
公开(公告)日：2018-01-24
申请号：EP17176672.8
申请日：2017-06-19
申请人： Altera Corporation
发明人： JEPPESEN, Benjamin Peter
IPC分类号： H03K19/177 , H03M3/00 , H04B14/06
CPC分类号： H03K19/17708 , H03K19/00346 , H03K19/1778 , H03K19/21 , H04B14/026 , H04B14/06
摘要： A feedback control system may include a feedback controller for controlling a plant using pulse density signals. The feedback controller may include a pulse density signal generator and a controller logic circuit. The pulse density signal generator may receive input command signals and generate signed or unsigned pulse density input signals. The controller logic may receive the pulse density input signals from the pulse density signal generator and feedback pulse density signals from the plant and may generate corresponding pulse density control signals for controlling the plant based on the input command signals. The controller logic may include a sign change logic, an addition circuit, and an optional amplifier circuit. The pulse density signal generator may also include rate transition circuits for ensuring that the pulse density input signals and the feedback pulse density signals are uncorrelated.
摘要翻译：反馈控制系统可以包括用于使用脉冲密度信号来控制工厂的反馈控制器。反馈控制器可以包括脉冲密度信号发生器和控制器逻辑电路。脉冲密度信号发生器可以接收输入命令信号并且生成有符号或无符号的脉冲密度输入信号。控制器逻辑可以接收来自脉冲密度信号发生器的脉冲密度输入信号和来自设备的反馈脉冲密度信号，并且可以基于输入命令信号产生用于控制设备的对应脉冲密度控制信号。控制器逻辑可以包括符号改变逻辑，加法电路和可选的放大器电路。脉冲密度信号发生器还可以包括用于确保脉冲密度输入信号和反馈脉冲密度信号不相关的速率转换电路。

110. 发明公开

EP2901594A1 ERROR DETECTION FOR SUB-BAND ADPCM ENCODED SOUND SIGNAL 有权
标题翻译：故障检测在零件带ADPCM编码音调
公开(公告)号：EP2901594A1
公开(公告)日：2015-08-05
申请号：EP13783110.3
申请日：2013-09-27
申请人： Panasonic Intellectual Property Management Co., Ltd.
发明人： SHIBUTA, Akira , SUWA, Yutaka , ISHIHARA, Hiroyuki , OBANA, Kyoichi
IPC分类号： H04L1/00 , H03M13/09 , H04B14/06 , G10L19/005 , H03M3/04 , G10L19/02
CPC分类号： H04L1/0061 , G10L19/005 , G10L19/0204 , H03M3/042 , H03M7/3046 , H03M13/09 , H04B14/068 , H04L1/0041 , H04L1/0042
摘要： A device divides a sampled sound signal into a high frequency signal and a low frequency signal, individually encodes the high frequency signal and the low frequency signal, and generates error detection code pertinent to the high frequency ADPCM data and the low frequency ADPCM data. The device replaces data pertinent to some of a plurality of bits which configure the low frequency ADPCM data with the error detection code and transmits them. A receiver side receives the high frequency ADPCM data and the low frequency ADPCM data, and individually processes the high frequency ADPCM data and the low frequency ADPCM data in accordance with a value of the error detection code.

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