-
公开(公告)号：USRE36181E
公开(公告)日：1999-04-06
申请号：US751932
申请日：1996-11-08
CPC分类号： G06F7/584 , G07C9/00182 , H04L9/12 , H04L9/304 , H04L9/32 , G06F2207/583 , G07C2009/00253 , G07C2009/00769 , G07C2009/00825 , G07C2009/00984 , G07C2209/06 , H04L2209/04 , H04L2209/08 , H04L2209/12 , H04L2209/20 , H04L2209/84
摘要： An automobile door lock receiver module (30) and a plurality of keychain fob transmitter units (16) contain identification numbers, secret initial values, and secret feedback masks so as to authenticate encrypted messages from any of the assigned fobs, indicative of commands registered by closing switches on the fob. Each fob is synchronized with the receiving module by means of a truly random number concatenated with a secret initial value and encrypted, through a linear feedback shift register or other operations. A second secret initial value is encrypted and command bits are exclusive ORed into the low order bit positions; the two encrypted numbers are concatenated and encrypted to form a key word which is transmitted with the fob ID. Synchronization includes decrypting to recover the truly random number and the secret initial value concatenated therewith; the truly random number is compared with previously received random numbers in order to avoid copying of recently transmitted synchronization commands. Successive lock-related commands utilize the number encrypted from the truly random number and the second secret initial value as starting values, employing a pseudorandom number of encryption iterations. A half-second delay between responses mitigates gaining access through numerical trials. An authenticated panic alarm command operates the headlights and horn of the vehicle but does not alter the synchronization.
摘要翻译： 汽车门锁接收器模块（30）和多个钥匙扣抽头发射器单元（16）包含识别号码，秘密初始值和秘密反馈掩码，以便从任何分配的信息点识别加密的消息，指示由 关闭开关。 每个FOB通过与秘密初始值连接并通过线性反馈移位寄存器或其他操作进行加密的真正随机数与接收模块同步。 第二秘密初始值被加密，并且命令位被异或进入低位位置; 两个加密号码被连接并加密，以形成一个用小号码ID发送的关键字。 同步包括解密以恢复与其连接的真实随机数和秘密初始值; 将真正的随机数与先前接收到的随机数进行比较，以避免最近发送的同步命令的复制。 连续锁相关命令利用从真正随机数加密的号码和第二秘密初始值作为起始值，采用伪随机数加密迭代。 响应之间的半秒延迟缓解了通过数值试验获得访问。 经认证的紧急报警指令用于操作车辆的前灯和喇叭，但不会改变同步。
-
公开(公告)号：US4816989A
公开(公告)日：1989-03-28
申请号：US38818
申请日：1987-04-15
CPC分类号： G06F11/188 , G06F11/0724 , G06F11/1425 , G06F11/1482 , G06F11/1658 , G06F11/181 , G06F11/182 , G06F11/187 , G06F11/202 , G06F15/161 , G06F9/4881 , G06F11/076 , G06F11/10
摘要： A synchronizer for each node in a multiple node processing system having a message interface for receiving sync and pre-sync time-dependent message, counter means for generating a local time, a time stamp memory having an entry for each node in the multiple node processing system, a time stamper responsive to receiving a time-dependent message from a node for storing the local time in the entry of said time stamp memory for that node to generate a time stamp. The synchronizer has a time stamp voter for generating a medial time stamp value from all the time stamps in the time stamp memory, a sync correction generator for generating a sync delta having a value corresponding to the difference between the voted time stamp and the node's own time stamp, means for adding said sync delta to a nominal transmission timing interval to generate an actual transmission timing interval, and a message generator for generating a pre-sync time dependent message passed to the transmitter at the end of the nominal transmission timing interval and for generating a sync time-dependent message passed to the transmitter at the end of said actual transmission timing interval.
摘要翻译： 具有用于接收同步和预同步时间相关消息的消息接口的多节点处理系统中的每个节点的同步器，用于生成本地时间的计数器装置，具有多节点处理中的每个节点的条目的时间戳存储器 系统，时间压缩器响应于从节点接收时间相关消息以将本地时间存储在该节点的所述时间戳存储器的条目中以生成时间戳。 同步器具有时间戳选择器，用于从时间标记存储器中的所有时间戳生成中间时间标记值，同步校正发生器，用于产生具有对应于投票时间戳和节点本身之间的差值的同步增益 时间戳，用于将所述同步增量添加到标称传输定时间隔以产生实际传输定时间隔的装置;以及消息发生器，用于在标称传输定时间隔结束时生成传递给发射机的预同步时间相关消息;以及 用于在所述实际传输定时间隔结束时产生传递给发射机的同步时间相关消息。
-
公开(公告)号：US07952474B2
公开(公告)日：2011-05-31
申请号：US11885814
申请日：2005-03-15
申请人： Pengju Kang , Alan M. Finn , Robert N. Tomastik , Thomas M. Gillis , Ziyou Xiong , Lin Lin , Pei-Yuan Peng
发明人： Pengju Kang , Alan M. Finn , Robert N. Tomastik , Thomas M. Gillis , Ziyou Xiong , Lin Lin , Pei-Yuan Peng
IPC分类号： G08B19/00
CPC分类号： G08B29/183 , G08B13/19697 , G08B29/186
摘要： An alarm filter (22) for use in a security system (14) to reduce the occurrence of nuisance alarms receives sensor signals (S1-Sn, Sv) from a plurality of sensors (18, 20) included in the security system (14). The alarm filter (22) produces an opinion output as a function of the sensor signals and selectively modifies the sensor signals as a function of the opinion output to produce verified sensor signals (S1′-Sn′).
摘要翻译： 用于安全系统（14）中用于减少妨扰报警的发生的报警过滤器（22）从包括在安全系统（14）中的多个传感器（18,20）接收传感器信号（S1-Sn，Sv） 。 报警过滤器（22）产生作为传感器信号的函数的意见输出，并根据意见输出选择性地修改传感器信号以产生经验证的传感器信号（S1'-Sn'）。
-
公开(公告)号：US07731000B2
公开(公告)日：2010-06-08
申请号：US10590682
申请日：2004-02-27
IPC分类号： B66B1/34
CPC分类号： B66B1/3492
摘要： A positioning system having a plurality of transponder modules each located at a known location for receiving an electromagnetic signal and emitting a light signal, at least one transceiver module for emitting an electromagnetic signal and receiving the light signal, and apparatus processing the received light signal to determine a position of the at least one transceiver module.
摘要翻译： 一种定位系统，具有多个应答器模块，每个转发器模块均位于已知位置处，用于接收电磁信号并发出光信号;至少一个收发模块，用于发射电磁信号并接收光信号;以及设备处理接收到的光信号 确定所述至少一个收发器模块的位置。
-
公开(公告)号：US07571791B2
公开(公告)日：2009-08-11
申请号：US10580149
申请日：2003-11-26
申请人： Alan M. Finn , Jae-Hyuk Oh , Pei-Yuan Peng
发明人： Alan M. Finn , Jae-Hyuk Oh , Pei-Yuan Peng
CPC分类号： B66B1/40 , B66B1/3492
摘要： A positioning system for a moveable platform comprising at least one active array comprised of at least one light emitting element for transmitting a binary encoded identification, where the encoding may be spatial or temporal, positioned at a known location, at least one camera for acquiring an image of the at least one active array, component for receiving the binary encoded identification from the image, component for processing the image to determine the position of the active array with respect to the moveable platform, and component for combining the received binary encoded identification and the determined position to calculate a position of the moveable platform.
摘要翻译： 一种用于可移动平台的定位系统，包括至少一个有源阵列，该至少一个有源阵列由至少一个发光元件组成，用于传输二进制编码标识，其中编码可以是空间或时间的，位于已知位置，至少一个相机用于获取 所述至少一个有源阵列的图像，用于从所述图像接收所述二进制编码标识的组件，用于处理所述图像以确定所述有源阵列相对于所述可移动平台的位置的组件，以及用于将所接收的二进制编码标识和 确定的位置来计算可移动平台的位置。
-
公开(公告)号：US07261762B2
公开(公告)日：2007-08-28
申请号：US10840758
申请日：2004-05-06
申请人： Pengju Kang , Mohsen Farzad , Slaven Stricevic , Payman Sadegh , Alan M. Finn
发明人： Pengju Kang , Mohsen Farzad , Slaven Stricevic , Payman Sadegh , Alan M. Finn
CPC分类号： B01D46/0086 , B01D46/444 , B01D2273/30 , Y10S116/25
摘要： A method and system for detecting and predicting air filter condition for an air handling system operates by determining a system resistance to air flow. The system resistance is utilized to determine a detection statistic indicative of current filter condition and to predict remaining life of the air filter. The system resistance is determined using models that approximate the expected operation of the air handling system. The approximation is then compared to actual values to obtain a difference. Once the difference between the approximated value exceeds a threshold value, an alarm is initiated that is indicative of system resistance. The remaining air filter life is then determined by using historically gathered data, or by using a known degradation rate of the air filter. Once the remaining life of the air filter is estimated, replacement can be scheduled that would coincide with other maintenance.
摘要翻译： 用于检测和预测空气处理系统的空气过滤器状态的方法和系统通过确定系统对气流的阻力来操作。 系统电阻用于确定表示当前过滤条件的检测统计量，并预测空气过滤器的剩余寿命。 使用近似空气处理系统的预期操作的模型确定系统阻力。 然后将近似值与实际值进行比较以获得差异。 一旦近似值之间的差超过阈值，则启动指示系统电阻的报警。 然后通过使用历史收集的数据或通过使用空气过滤器的已知降解速率来确定剩余的空气过滤器寿命。 一旦估计空气过滤器的剩余寿命，可以安排与其他维护一致的更换。
-
27.发明授权System for computationally efficient active control of tonal sound or vibration 有权用于计算有效主动控制音调声或振动的系统公开(公告)号：US07224807B2
公开(公告)日：2007-05-29
申请号：US10083773
申请日：2002-02-27
CPC分类号： G05B5/01 , G05B21/02 , G10K11/178 , G10K2210/121 , G10K2210/1281 , G10K2210/3012 , G10K2210/3032 , G10K2210/3051 , G10K2210/3053 , G10K2210/321
摘要： A noise or vibration control system reduces a sampling rate and reduces a control rate to improve computation efficiency. The present invention permits the use of a sample frequency (fs) that is less than twice the frequency of interest (fd). The sensed signals are filtered to extract a particular frequency range with a lower bound given by (2n−1)*fs/2 and an upper bound given by (2n+1)*fs/2, where n is an integer chosen so that the frequency of interest (fd) is within the extracted frequency range. The control commands are also calculated at a reduced rate, which is dependent upon the bandwidth of the tone, rather than the absolute frequency of the tone. Rather than updating the control signals directly on the sampled sensor data yk as it enters the computer, the control computations are done on the harmonic components ak and bk, or equivalently on the magnitude and phase.
摘要翻译： 噪声或振动控制系统降低采样率并降低控制速率以提高计算效率。 本发明允许使用小于感兴趣频率的两倍的样本频率（f SUB）。 所感测的信号被滤波以提取具有由（2n-1）* f / 2/2给出的下限的特定频率范围，并且由（2n + 1）* f < s，其中n是选择的整数，使得感兴趣的频率（f SUB）在所提取的频率范围内。 控制命令也以降低的速率计算，这取决于音调的带宽，而不是音调的绝对频率。 而不是在采样的传感器数据进入计算机时直接更新控制信号，而是在谐波分量a和k上完成控制计算， 或等效于幅度和相位。
-
公开(公告)号：US07159408B2
公开(公告)日：2007-01-09
申请号：US10900478
申请日：2004-07-28
申请人： Payman Sadegh , Mohsen Farzad , Alan M. Finn , Pengju Kang , Slaven Stricevic
发明人： Payman Sadegh , Mohsen Farzad , Alan M. Finn , Pengju Kang , Slaven Stricevic
IPC分类号： F25B1/00
CPC分类号： F25B49/005 , F25B2500/19 , F25B2600/19 , F25B2600/2513 , F25B2700/04
摘要： A method for detecting and predicting refrigerant level includes the steps of determining an estimated value for a parameter indicative of refrigerant level and comparing that estimated value to an actual value. The difference between the actual and estimated value provides a refrigerant charge indicator value. The charge indicator value is indicative of the amount of refrigerant contained within the system. A change value is combined with the charge indicator value to provide a prediction for the future value of the charge indicator value. This future value is determined based on a rate of change and charge indicator value over a selected period of time.
摘要翻译： 一种用于检测和预测制冷剂液位的方法包括以下步骤：确定指示制冷剂水平的参数的估计值，并将该估计值与实际值进行比较。 实际值和估计值之间的差值提供制冷剂充注指标值。 充电指示器值表示包含在系统内的制冷剂的量。 将变化值与充电指标值组合以提供充电指示器值的未来值的预测。 该未来值是根据所选时间段内的变化率和收费指标值确定的。
-
公开(公告)号：US06748086B1
公开(公告)日：2004-06-08
申请号：US09691869
申请日：2000-10-19
IPC分类号： A61E1106
CPC分类号： H04R3/02 , H04M9/082 , H04R3/005 , H04R2499/13
摘要： A cabin communication system for improving clarity of a voice spoken within an interior cabin uses a microphone array including a first microphone, positioned at a first location within the cabin, for receiving the spoken voice primarily in a first direction and for converting the spoken voice into a first audio signal, and a second microphone, positioned at a second location within the cabin, for receiving the spoken voice primarily in the first direction and for converting the spoken voice into a second audio signal. A sound source, such as the speaker of an entertainment system, inputs sound into the cabin such that the input sound approaches the microphone array primarily in a second direction different from the first direction. A processor combines the first and second audio signals to provide a resultant audio signal, wherein the combining of the first and second audio signals defines a beampattern of the microphone array that includes a plurality of lobes and a plurality of nulls such that the spoken voice is primarily received by the microphone array along the first direction at a first one of the plurality of lobes and such that the input sound is primarily received by the microphone array along the second direction at a first one of the plurality of nulls, whereby any component in the resultant audio signals indicative of the input sound is substantially minimal. The cabin communication system further includes a loudspeaker for converting the resultant audio signal into an output reproduced voice within the cabin, and advantageously the beampattern is such that the output reproduced voice is also received at a null of the beampattern.
摘要翻译： 用于提高内部舱室内的语音清晰度的舱室通信系统使用麦克风阵列，该麦克风阵列包括位于舱室内的第一位置的第一麦克风，用于主要在第一方向上接收所述口语，并将所述语音转换成 第一音频信号和第二麦克风，其位于机舱内的第二位置处，用于主要在第一方向上接收所述口语，并将所述口语转换成第二音频信号。 诸如娱乐系统的扬声器的声源将声音输入舱室，使得输入声音主要在与第一方向不同的第二方向上接近麦克风阵列。 处理器组合第一和第二音频信号以提供合成的音频信号，其中第一和第二音频信号的合并定义了麦克风阵列的波形图，该波形图包括多个波瓣和多个零点，使得所述语音是 主要由麦克风阵列沿着第一方向在多个波瓣中的第一个方向上接收，并且使得输入声音主要由麦克风阵列沿着第二方向以多个零点中的第一个被接收，由此， 指示输入声音的结果音频信号基本上是最小的。 舱室通信系统还包括用于将所得到的音频信号转换成舱室内的输出再现声音的扬声器，并且有利地，波形图案使得输出再现声音也在空白波形图像的零点处被接收。
-
公开(公告)号：US5940002A
公开(公告)日：1999-08-17
申请号：US948743
申请日：1997-10-10
CPC分类号： H04L9/32 , B60R25/00 , G07C9/00182 , G07C2009/00222 , G07C2009/00253 , G07C2009/00984 , H04L2209/34 , H04L2209/84
摘要： A security system that is useful for protecting vehicles from theft and buildings from unauthorized entry, for example, includes utilizing random numbers within remotely transmitted signals. A remote signaling device transmits a signal to a system controller with instructions for a desired operation of the system. The invention prevents a potential thief from capturing one or more transmitted signals and later mimicking or predicting a subsequent signal by including or utilizing a random number when generating the transmitted signal. The random number is incorporated into the transmitted signal in one of several ways according to this invention. Single-use or limited re-use of random numbers enhances the security and integrity of the system.
摘要翻译： 例如，用于保护车辆免遭盗窃和建筑物的安全系统包括在远程发送的信号内使用随机数。 远程信令设备向系统控制器发送具有用于系统的期望操作的指令的信号。 本发明通过在生成发送信号时包括或利用随机数来防止潜在的小偷捕获一个或多个发送的信号，并且随后模拟或预测后续的信号。 根据本发明，随机数以多种方式之一并入发送信号中。 一次性使用或有限重复使用随机数增强了系统的安全性和完整性。
-
-
-
-
-
-
-
-
-
搜索结果
45 条记录 (耗时 0.023 秒)
