公开(公告)号：WO2006035178A1

公开(公告)日：2006-04-06

申请号：PCT/FR2005/050779

申请日：2005-09-26

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ,  DEHMAS, François ,  CROCHON, Elisabeth ,  VACHERAND, François

Inventor： DEHMAS, François ,  CROCHON, Elisabeth ,  VACHERAND, François

IPC: H04K3/00

CPC classification number: H04K3/825 ,  G06K7/0008 ,  H04K3/28 ,  H04K3/42 ,  H04K3/43 ,  H04K3/44 ,  H04K3/45 ,  H04K2203/20

Abstract: Procédé de communication sécurisé entre un émetteur (10) et un récepteur (1) dans lequel une gamme de niveaux de puissance émise par l'émetteur (10) , une gamme de fréquences à l'intérieur de laquelle l'émission va avoir lieu, (10) sont connus ou détectables par le récepteur (1) , le procédé comportant l'émission par le récepteur (1) d'un signal d'alimentation de l'émetteur, l'émission par le récepteur (1) pendant au moins toute la durée de l'émission d'un signal de bruit noyant le signal d'émission, la soustraction, par le récepteur (1) du signal de bruit, au signal reçu pour obtenir un signal utile L' invention comporte aussi un dispositif récepteur fonctionnant selon le Procédé.

Abstract translation: 本发明涉及一种实现发射机（10）和接收机（1）之间的安全通信的方法，其中由发射机（10）发射的功率电平的范围和发射的频率范围是 已知或可以由接收器（1）检测。 本发明的方法包括以下步骤：接收机（1）发送发射机供电信号; 接收器（1）传输支配传输信号的噪声信号，至少在传输的整个持续时间内; 并由接收机（1）从接收到的信号中减去噪声信号，以获得有用的信号。 本发明还涉及根据该方法操作的接收机设备。

公开(公告)号：WO2004095877A2

公开(公告)日：2004-11-04

申请号：PCT/US2004012341

申请日：2004-04-21

Applicant: ACENTECH INC ,  HORRALL THOMAS R ,  HEINE JOHN C

Inventor： HORRALL THOMAS R ,  HEINE JOHN C

IPC: G10K11/175 ,  H04R1/02 ,  H04R27/00 ,  H04R

CPC classification number: H04R3/002 ,  G10K11/175 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/34 ,  H04R1/00 ,  H04R1/025 ,  H04R3/02 ,  H04R3/12 ,  H04R27/00 ,  H04R2201/021 ,  H04S7/00 ,  H04S2420/01

Abstract: A sound masking system according to the invention is disclosed in which one or more sound masking loudspeaker assemblies are coupled to one or more electronic sound masking signal generators. The loudspeaker assemblies in the system of the invention have a low directivity index and preferably emit an acoustic sound masking signal that has a sound masking spectrum specifically designed to provide superior sound masking in an open plan office. Each of the plurality of loudspeaker assemblies is oriented to provide the acoustic sound masking signal in a direct path into the predetermined area in which masking sound is needed. In addition, a loudspeaker assembly is configured as a bolt and slip-nut threading system for ease of installation. The exterior surface of the loud speaker "bolt" and the interior surface of the locking nut contain axially oriented, reciprocal regions with and without threads. In operation, the regions of the nut without threads are oriented to correspond to the regions of the bolt with threads. The nut is then slid along the bolt until the desired placement position is reached and locked in place with a half turn of the nut or less. An interference pin may also be used to provide positive locking of the nut at any position.

Abstract translation: 公开了根据本发明的声屏蔽系统，其中一个或多个声屏蔽扬声器组件耦合到一个或多个电子声屏蔽信号发生器。 本发明的系统中的扬声器组件具有低方向性指数，并且优选地发射声学屏蔽信号，该声音屏蔽信号具有专门设计成在开放式办公室中提供优异的声音屏蔽的声音掩蔽频谱。 多个扬声器组件中的每一个被定向成在直接路径中提供声音屏蔽信号到其中需要掩蔽声音的预定区域。 此外，扬声器组件被配置为螺栓和滑动螺母螺纹系统，以便于安装。 扬声器“螺栓”的外表面和锁紧螺母的内表面包含带和不带螺纹的轴向定向的往复区域。 在操作中，没有螺纹的螺母的区域被定向成对应于具有螺纹的螺栓的区域。 然后将螺母沿着螺栓滑动，直到达到所需的放置位置并用螺母的半圈或更小的方式将其锁定到位。 干涉销也可用于在任何位置提供螺母的正锁定。

公开(公告)号：WO2002069317A2

公开(公告)日：2002-09-06

申请号：PCT/CA2002/000238

申请日：2002-02-26

Applicant: 777388 ONTARIO LIMITED ,  MOELLER, Klaus, R. ,  MOELLER, Niklas ,  RUSU, Mircea ,  DERLA, Carl

Inventor： MOELLER, Klaus, R. ,  MOELLER, Niklas ,  RUSU, Mircea ,  DERLA, Carl

IPC: G10K11/00

CPC classification number: G10K11/175 ,  G10K2210/3014 ,  G10K2210/30351 ,  G10K2210/3049 ,  H04K3/42 ,  H04K3/43 ,  H04K3/45 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/34 ,  H04M11/027 ,  H04R3/002 ,  H04R27/00 ,  H05K5/0247

Abstract: A sound masking system for shaping the ambient noise level in a physical environment. The sound masking system comprises a networked and distributed system having a number of master units coupled together and to a control unit. One or more of the master units may include satellite sound masking units which function to reproduce the sound masking signal generated by the master sound masking unit. Each of the master units is addressable over the network by the control unit enabling the control unit to program the contour, spectral band, and gain characteristics of the sound masking output signal. The system may also include a remote control unit which provides the capability to tune and adjust each master sound masking unit in situ without requiring physical access through the ceiling installation. According to another aspect, there is a networked paging system with individually addressable speaker units for announcing a paging signal selected from a number of paging signals.

Abstract translation: 用于在物理环境中整形环境噪声水平的声音遮蔽系统。 声音掩蔽系统包括具有耦合在一起的多个主单元和控制单元的网络和分布式系统。 一个或多个主单元可以包括用于再现由主声音掩蔽单元产生的声音屏蔽信号的卫星声音屏蔽单元。 每个主单元可由控制单元通过网络寻址，使得控制单元能够编程声屏蔽输出信号的轮廓，频谱带和增益特性。 该系统还可以包括遥控单元，该遥控单元提供能够在原地调整和调整每个主声音屏蔽单元的能力，而不需要通过天花板安装进行物理访问。 根据另一方面，存在具有单独可寻址的扬声器单元的联网寻呼系统，用于通知从多个寻呼信号中选择的寻呼信号。

公开(公告)号：WO99046958A1

公开(公告)日：1999-09-16

申请号：PCT/US1999/005277

申请日：1999-03-10

IPC: G10K11/175 ,  H04R5/033 ,  H04R3/02 ,  A61F11/06 ,  H03B29/00

CPC classification number: G10K11/175 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/12 ,  H04K2203/34 ,  H04R1/1041 ,  H04R1/1083 ,  H04R5/033

Abstract: A personal sound masking system (figure 3) for use in an individual workspace (10) provides an optimized acoustic background environment by delivering a sound masking signal that is speficically matched to the individual user's location and physical relationship to other nearby office. The sound masking system employs multiple loudspeakers (16) and multiple mutually incoherent channels in order to obtain a desired degree of diffuseness. A control module (figure 6) includes memory (80) that stores data representing a number of samples of a masking signal segment and generates different series of data values each representing a different masking signal. The sound masking system also includes a user-accessible volume control (20) to enable the user to adjust the sound level to achieve optimum sound masking in his or her individual workspace.

Abstract translation: 用于个人工作空间（10）中的个人声音掩蔽系统（图3）通过传递与个人用户的位置和物理关系与其他附近办公室特意匹配的声屏蔽信号来提供优化的声学背景环境。 声音掩蔽系统采用多个扬声器（16）和多个相互不相干的通道，以便获得期望的扩散程度。 控制模块（图6）包括存储器（80），其存储表示掩蔽信号段的采样数量的数据，并产生不同的一系列数据值，每个数据值表示不同的屏蔽信号。 声音遮蔽系统还包括用户可访问的音量控制（20），以使得用户能够调整声音水平以在他或她的单个工作空间中实现最佳声音屏蔽。

公开(公告)号：WO98056192A2

公开(公告)日：1998-12-10

申请号：PCT/IL1998/000253

申请日：1998-06-01

IPC: H04K3/00 ,  H04W48/04 ,  H04Q7/20

CPC classification number: H04W48/04 ,  H04K3/42 ,  H04K3/43 ,  H04K3/45 ,  H04K3/65 ,  H04K3/84 ,  H04K2203/16

Abstract: A method and system for controlling the use of mobile cellular communications within defined regulated areas are disclosed. The system transmits RF interfering signals on the frequency band typically used by cellular base stations to prevent effective communications between mobile units located within a given regulated area and cellular base stations. In the preferred embodiment, the system waits until mobile unit transmission from within the regulated area is detected and thereupon transmits a blocking signal which prevents effective handshake from taking place.

Abstract translation: 公开了一种用于控制在限定区域内的移动蜂窝通信的使用的方法和系统。 该系统在通常由蜂窝基站使用的频带上发射RF干扰信号，以防止位于给定调节区域内的移动单元与蜂窝基站之间的有效通信。 在优选实施例中，系统等待直到从调节区域内的移动单元传输被检测到，并且随后发送阻止有效握手发生的阻塞信号。

公开(公告)号：WO1991008650A1

公开(公告)日：1991-06-13

申请号：PCT/US1990007129

申请日：1990-12-05

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  WEST, Lamar, E., Jr.

IPC: H04N07/167

CPC classification number: H04K3/825 ,  H04K3/42 ,  H04K3/43 ,  H04K2203/14 ,  H04N7/102 ,  H04N7/166 ,  H04N7/167

Abstract: An off-premises negative or positive trap jamming cable television or interdiction system includes a picture carrier controlled automatic gain control circuit (231). A broadband television signal output of a variable gain device (230) is distributed by a radio frequency signal splitter (280) to a number of subscribers. A portion of the output of the variable gain device (230) comprising at least two contiguous television channels is passed to a power level detector (502). A detected power level is compared with a predetermined power level reference (504) for adjusting the gain of the variable gain device (230). The predetermined power level reference is set to equal the attenuation between the off-premises equipment and the subscriber premises plus the desired level at the entrance to the subscriber's premises. The power level of a jamming or interdicting signal for denying access to unauthorized television programs is set to fall within a predetermined range of power levels related to the predetermined power level reference.

Abstract translation: 一种非处方负面或正面的陷阱干扰有线电视或遮断系统包括一个图像载体控制的自动增益控制电路（231）。 可变增益设备（230）的宽带电视信号输出由射频信号分离器（280）分配给多个用户。 包括至少两个连续的电视频道的可变增益装置（230）的输出的一部分被传递到功率电平检测器（502）。 将检测到的功率电平与用于调整可变增益装置（230）的增益的预定功率电平基准（504）进行比较。 预定功率电平基准被设置为等于室外设备与用户房屋之间的衰减加上用户房屋入口处的期望水平。 用于拒绝访问未经授权的电视节目的干扰或干扰信号的功率电平被设置为落入与预定功率电平参考相关的功率电平的预定范围内。

公开(公告)号：WO1991007066A1

公开(公告)日：1991-05-16

申请号：PCT/US1990006402

申请日：1990-11-02

Applicant: KEHOE, Brian, D. ,  MATCHETT, Noel, D.

IPC: H04R03/02

CPC classification number: H04K3/65 ,  G10K11/175 ,  H04K1/02 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/12

Abstract: An audio surveillance discouragement apparatus or system comprising, at least, first generating device (11), second generating device (13) first speaker (15) and second speaker (17). The first speaker (15) is coupled to the first generating device (11), and the second speaker (17) is coupled to the second generating device (13). The first generating device (11) generates a first signal having a plurality of voice signals, synthesized vocal signals, and dummy intelligence signals, mixed with an audio frequency spectrum, which is approximately divided into a plurality of frequency bands with each of the frequency bands randomly and independently increasing or decreasing in volume, and may have a 20 dB pocket near 500 Hz. The second generating device (13) generates a second signal which is nonsynchronous with the first signal. The second signal is identical in construction to the first signal, but is unique in identity and characteristics. Additional signals are constructed in the same manner and generated in the same manner. The first speaker (15) radiates the first signal. The second speaker (17) radiates the second signal. Additional speakers radiate additional signals. All speakers are located a distance from each other for spatially mixing the radiated signals.

公开(公告)号：WO1990014722A1

公开(公告)日：1990-11-29

申请号：PCT/US1990002882

申请日：1990-05-14

Applicant: SYNTELLECT INC.

Inventor： SYNTELLECT INC. ,  SALTWICK, John, M. ,  SPARKS, William ,  SCARINCI, Dean ,  GATES, Geoffrey, W.

IPC: H04K01/02

CPC classification number: H04K3/28 ,  H04K1/02 ,  H04K3/42 ,  H04K3/43 ,  H04K3/825 ,  H04K2203/16

Abstract: A system and method are disclosed for preventing intelligible interception of information signals transmitted over a two-direction line (26). A masking signal is applied through a hybrid circuit (24) at the receiving end of the line (28), and this masking signal, which appears on the line together with the information signal, prevents intelligible decoding. The masking signal includes a series of frequencies which are sequentially applied. Only at the receiving end of the line, where the hybrid circuit (24) attenuates the masking signal which it receives at its receive port, can intelligible decoding take place. The amplitude of the information signals is sensed (34) at the receiving end and the amplitude of the masking signals on the line is adjusted (44) to be great enough to provide security, by confusing an eavesdropping detector, yet small enough at the receiving end so that the receiving detector is not confused.

公开(公告)号：WO1990006656A1

公开(公告)日：1990-06-14

申请号：PCT/US1989005357

申请日：1989-12-04

Applicant: SCIENTIFIC-ATLANTA, INC.

Inventor： SCIENTIFIC-ATLANTA, INC. ,  WEST, Lamar, E., Jr.

IPC: H04N07/167

CPC classification number: H04K3/825 ,  H04K3/42 ,  H04K3/43 ,  H04K2203/14 ,  H04N7/166

Abstract: An off-premises cable televison interdiction apparatus provides a microprocessor controller for controlling and switching one or more variable frequency voltage controlled oscillators. The variable frequency oscillators selectively jam only unauthorized premium programming transmitted on particular channels of a broadband signal in the clear from a headend to a subscriber. The microprocessor controller controls the variable frequency oscillators to hop between jamming frequencies and jam particular channels under control from the headend. A frequency calibration routine is executed periodically upon power-up to determine gain parameters for the oscillators. A heterodyned variable frequency oscillator may be provided for the interdiction system which moves the frequency of the variable frequency oscillator out of the television band and mixes the variable frequency oscillator output with a fixed local oscillator output to provide a jamming signal that falls in the television band. Gain control using a heterodyned oscillator may instead be provided for use in the interdiction system which uses one channel of the broadband signal as the jamming signal. Automatic gain control may also instead be provided for controlling the attenuation of a variable attenuator in accordance with a gain function determined by interpolation and previously stored in memory by a calibration routine executed periodically or upon power-up. The calibration routine may run concurrently with a frequency calibration routine for controlling the frequency of the jamming signal.

Abstract translation: 一个室外电缆电视拦截设备提供一个微处理器控制器，用于控制和切换一个或多个可变频率电压控制的振荡器。 可变频率振荡器选择性地阻止从头端到用户清楚地在宽带信号的特定信道上发送的未经授权的高级编程。 微处理器控制器控制可变频率振荡器在干扰频率之间跳转并阻塞来自头端的控制下的特定通道。 在上电时定期执行频率校准程序，以确定振荡器的增益参数。 可以为用于将可变频率振荡器的频率移出电视频带的阻塞系统提供外差变频振荡器，并将可变频率振荡器输出与固定本地振荡器输出混合，以提供落在电视频带中的干扰信号 。 可以替代地提供使用外差振荡器的增益控制用于使用宽带信号的一个信道作为干扰信号的截断系统。 还可以提供自动增益控制，以根据由内插确定的增益函数来控制可变衰减器的衰减，并且通过周期性执行或上电时执行的校准程序预先存储在存储器中。 校准程序可以与用于控制干扰信号的频率的频率校准例程同时运行。

公开(公告)号：WO2017152242A1

公开(公告)日：2017-09-14

申请号：PCT/AU2017/050221

申请日：2017-03-10

Applicant: LEMMING, Kim ,  LEMMING, Chad

Inventor： LEMMING, Kim ,  LEMMING, Chad

IPC: H04K3/00 ,  G07C5/00

CPC classification number: G07C5/00 ,  H04K3/00 ,  H04K3/415 ,  H04K3/43 ,  H04K2203/16 ,  H04K2203/22 ,  H04K2203/32 ,  H04K2203/34

Abstract: A system for interfering with communication signals in a vehicle. The system comprises a jammer that is configured to interfere with at least one communications signal within said vehicle. The system also comprises a controller in communication with the jammer and said vehicle. Said controller is adapted to activate said jammer when the engine of the vehicle is on and deactivate said jammer when the engine of the vehicle is off.

Abstract translation: 用于干扰车辆中的通信信号的系统

用于干扰车辆中的通信信号的系统。 该系统包括被配置为干扰所述车辆内的至少一个通信信号的干扰机。 该系统还包括与干扰机和所述车辆通信的控制器。 所述控制器适于当车辆的发动机开启时启动所述干扰机并且当车辆的发动机关闭时停用所述干扰机。