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15 条记录 (耗时 0.027 秒)

    On-demand retransmission of data with an implantable medical device
    6.
    发明授权
    On-demand retransmission of data with an implantable medical device 有权
    使用可植入式医疗设备进行按需重传数据

    公开(公告)号：US08676335B2

    公开(公告)日：2014-03-18

    申请号：US12258061

    申请日：2008-10-24

    申请人： Mehdi Katoozi ,  Kenneth F. Cowan ,  Thomas M. Bocek ,  Mark Rutzer ,  Scott Vanderlinde ,  Prashant Rawat

    发明人： Mehdi Katoozi ,  Kenneth F. Cowan ,  Thomas M. Bocek ,  Mark Rutzer ,  Scott Vanderlinde ,  Prashant Rawat

    IPC分类号： A61N1/00 ,  G06F11/08

    CPC分类号： A61N1/37252 ,  Y10S128/903

    摘要： An apparatus comprises a transceiver configured to communicate wirelessly with an IMD and a processor communicatively coupled to the transceiver. The processor is configured to detect an error in a data unit received from the IMD, transmit a series of synchronization signals during an uninterrupted communication sequence, and receive, for each synchronization signal, a new data unit and the number of requested duplicate data units from the IMD. Each synchronization signal includes an echo code, wherein the echo code corresponds to a request for a number of duplicate data units to be sent in response to detecting the error in the data unit received during said uninterrupted communication sequence. The number of duplicate data units corresponds to a value of the echo code, and a duplicate data unit corresponds to a data unit previously transmitted by the IMD during said uninterrupted communication sequence.

    摘要翻译： 一种装置包括被配置为与IMD无线通信的收发机和通信地耦合到收发器的处理器。 处理器被配置为检测从IMD接收的数据单元中的错误，在不间断通信序列期间发送一系列同步信号，并且为每个同步信号接收新的数据单元以及从 IMD。 每个同步信号包括回波码，其中响应于在所述不间断通信序列期间接收到的数据单元中的错误的检测，回波码对应于要发送的多个重复数据单元的请求。 重复数据单元的数量对应于回波码的值，并且重复数据单元对应于在所述不间断通信序列期间由IMD先前发送的数据单元。

    IMPLANTABLE MEDICAL DEVICE TELEMETRY WITH HOP-ON-ERROR FREQUENCY HOPPING
    7.
    发明申请
    IMPLANTABLE MEDICAL DEVICE TELEMETRY WITH HOP-ON-ERROR FREQUENCY HOPPING 有权
    带有门禁错误频率跳动的可植入医疗设备

    公开(公告)号：US20080228237A1

    公开(公告)日：2008-09-18

    申请号：US11685577

    申请日：2007-03-13

    申请人： Joseph E. Bange ,  Earle Roberts ,  Kenneth F. Cowan ,  Mehdi Katoozi

    发明人： Joseph E. Bange ,  Earle Roberts ,  Kenneth F. Cowan ,  Mehdi Katoozi

    IPC分类号： A61N1/08

    CPC分类号： A61N1/37252 ,  H04B1/713 ,  Y10S128/903

    摘要： A telemetry system for data transmission between an implantable medical device and an external system includes a plurality of channels each representing a frequency band within a predetermined frequency range. The data transmission is performed using at least one active channel at any instant. Channel hopping is performed upon detecting an interruption of communication, such that a scan is performed through an array of channels selected from the plurality of channels. If a data frame is not successfully transmitted, it is repeatedly re-transmitted using the current and/or the next active channels until its transmission becomes successful.

    摘要翻译： 用于可植入医疗装置和外部系统之间的数据传输的遥测系统包括多个通道，每个通道表示预定频率范围内的频带。 在任何时刻使用至少一个活动信道来执行数据传输。 在检测到通信的中断时执行信道跳频，使得通过从多个信道中选择的信道的阵列执行扫描。 如果数据帧未成功发送，则使用当前和/或下一个活动通道重复发送数据帧，直到其传输成功。

    Digital pulse width modulator for power supply control
    8.
    发明授权
    Digital pulse width modulator for power supply control 失效
    数字脉宽调制器，用于电源控制

    公开(公告)号：US5594631A

    公开(公告)日：1997-01-14

    申请号：US230320

    申请日：1994-04-20

    申请人： Mehdi Katoozi ,  George S. La Rue

    发明人： Mehdi Katoozi ,  George S. La Rue

    IPC分类号： H02M3/157 ,  H03K7/08 ,  H02M1/12

    CPC分类号： H03K7/08 ,  H02M3/157

    摘要： A control for a pulse width modulated power supply. The control (14) uses a digital pulse width modulator (48, 48') to produce set and reset signals that determine the duration of control pulses supplied to the pulse width modulated power supply (12). In one embodiment, a plurality of analog-to-digital converters (50, 51, 53) convert analog signals indicative of different parameters monitored on the pulse width modulated power supply to digital values. Differences between the digital values and corresponding predefined desired reference values are determined, combined, and the result is input to a digital comparator (72) of the digital pulse width modulator. The digital comparator produces a reset signal when the combined differences equal a count of clock pulses accumulated on a counter (76). A second digital comparator compares the count to a predefined count and produces a set signal when the two digital values are equal. The set and reset signals are applied to a flip-flop (88) to produce the control pulses, and the set signal resets the counter to initiate the next count cycle. In a silicon CMOS embodiment having a limited switching frequency capability, the required resolution is achieved by using a vernier (94) to incrementally delay the reset signal based upon the least significant bits of the difference signal.

    摘要翻译： 脉冲宽度调制电源的控制。 控制器（14）使用数字脉冲宽度调制器（48,48'）来产生确定提供给脉宽调制电源（12）的控制脉冲持续时间的设定和复位信号。 在一个实施例中，多个模数转换器（50,51,53）将表示在脉宽调制电源上监测的不同参数的模拟信号转换为数字值。 数字值和对应的预定义的所需参考值之间的差异被确定，组合，结果被输入到数字脉宽调制器的数字比较器（72）。 当组合差异等于在计数器（76）上积累的时钟脉冲的计数时，数字比较器产生复位信号。 第二数字比较器将计数与预定义的计数进行比较，并且当两个数字值相等时产生设定信号。 设置和复位信号被施加到触发器（88）以产生控制脉冲，并且设置信号复位计数器以启动下一个计数周期。 在具有有限的开关频率能力的硅CMOS实施例中，通过使用游标（94）基于差分信号的最低有效位来递增地延迟复位信号来实现所需的分辨率。

    Implantable medical device telemetry with hop-on-error frequency hopping
    9.
    发明授权
    Implantable medical device telemetry with hop-on-error frequency hopping 有权
    可植入医疗设备遥测与跳错跳频

    公开(公告)号：US08046079B2

    公开(公告)日：2011-10-25

    申请号：US11685577

    申请日：2007-03-13

    申请人： Joseph E. Bange ,  Earle Roberts ,  Kenneth F. Cowan ,  Mehdi Katoozi

    发明人： Joseph E. Bange ,  Earle Roberts ,  Kenneth F. Cowan ,  Mehdi Katoozi

    IPC分类号： A61N1/08

    CPC分类号： A61N1/37252 ,  H04B1/713 ,  Y10S128/903

    摘要： A telemetry system for data transmission between an implantable medical device and an external system includes a plurality of channels each representing a frequency band within a predetermined frequency range. The data transmission is performed using at least one active channel at any instant. Channel hopping is performed upon detecting an interruption of communication, such that a scan is performed through an array of channels selected from the plurality of channels. If a data frame is not successfully transmitted, it is repeatedly re-transmitted using the current and/or the next active channels until its transmission becomes successful.

    摘要翻译： 用于可植入医疗装置和外部系统之间的数据传输的遥测系统包括多个通道，每个通道表示预定频率范围内的频带。 在任何时刻使用至少一个活动信道来执行数据传输。 在检测到通信的中断时执行信道跳频，使得通过从多个信道中选择的信道的阵列执行扫描。 如果数据帧未成功发送，则使用当前和/或下一个活动通道重复发送数据帧，直到其传输成功。

    Symmetric key encryption system with synchronously updating expanded key
    10.
    发明申请
    Symmetric key encryption system with synchronously updating expanded key 有权
    对称密钥加密系统，同步更新扩展密钥

    公开(公告)号：US20070053516A1

    公开(公告)日：2007-03-08

    申请号：US11207286

    申请日：2005-08-19

    申请人： Mehdi Katoozi ,  George Jelatis

    发明人： Mehdi Katoozi ,  George Jelatis

    IPC分类号： H04L9/00

    CPC分类号： H04L9/0631 ,  H04L2209/08 ,  H04L2209/20

    摘要： A method, apparatus, and system of encryption, including embedding reconfiguration information within a ciphertext block destined for a decryptor. The decryptor identifies the reconfiguration information, extracts such information, and uses it to alter a pre-cipher, which is used for decryption. The encryptor alters its pre-cipher synchronously with the decryptor.

    摘要翻译： 一种加密的方法，装置和系统，包括将重配置信息嵌入目的地为解密器的密文块内。 解密器识别重新配置信息，提取这些信息，并使用它来改变用于解密的预密码。 加密器与解密器同步改变其预先密码。