Cyclic redundancy calculation circuitry for use in medical devices and methods regarding same
    4.
    发明授权
    Cyclic redundancy calculation circuitry for use in medical devices and methods regarding same 有权
    用于医疗器械的循环冗余计算电路及其相关方法

    公开(公告)号:US06456875B1

    公开(公告)日:2002-09-24

    申请号:US09416667

    申请日:1999-10-12

    IPC分类号: H03M1309

    CPC分类号: H03M13/091

    摘要: Cyclic redundancy calculations are provided by operating on a data stream, e.g., a data stream in an implantable medical device, to perform a polynomial division thereon using one of a first cyclic redundancy code generator polynomial and a second cyclic redundancy code generator polynomial. The first cyclic redundancy code generator polynomial is a higher order polynomial than the second cyclic redundancy code generator polynomial and contains all terms of the second cyclic redundancy code generator polynomial. The polynomial division may be implemented using linear feedback shift register circuitry and circuitry to select between the use of the first or second cyclic redundancy code generator polynomial.

    摘要翻译: 通过对数据流(例如可植入医疗装置中的数据流)进行操作,使用第一循环冗余码生成多项式和第二循环冗余码生成多项式之一对其执行多项式除法来提供循环冗余计算。 第一循环冗余码生成多项式是比第二循环冗余码生成多项式更高阶的多项式,并且包含第二循环冗余码生成多项式的所有项。 可以使用线性反馈移位寄存器电路和电路来实现多项式除法,以在使用第一或第二循环冗余码生成多项式之间进行选择。

    Signal processor with intelligent feedback to ensure functionality of microprocessor and state machine based programmable pulse generators in the presence of clock and power supply disturbances
    5.
    发明授权
    Signal processor with intelligent feedback to ensure functionality of microprocessor and state machine based programmable pulse generators in the presence of clock and power supply disturbances 失效
    具有智能反馈的信号处理器,以确保在存在时钟和电源干扰的情况下,微处理器和基于状态机的可编程脉冲发生器的功能

    公开(公告)号:US06237105B1

    公开(公告)日:2001-05-22

    申请号:US08054496

    申请日:1993-04-26

    IPC分类号: G06F104

    CPC分类号: A61N1/025 G06F1/04

    摘要: A signal processor operates on a microprocessor or state machine based system to ensure that the central processing unit (CPU) and pulse generator (PG) have finished their instructions before allowing a new transition on the system master clock. The CPU and PG contain circuitry which allows them to indicate when they are busy. These signals are fed to the signal processor to indicate when the CPU and PG are ready to start another instruction. The signal processor functions to prevent a noise glitch on the system clock from causing another operation to start before the one in process has finished. The output of the signal processor becomes the master clock signal used by the system.

    摘要翻译: 信号处理器在基于微处理器或基于状态机的系统上操作,以确保中央处理单元(CPU)和脉冲发生器(PG)在允许在系统主时钟之间的新的转换之前完成其指令。 CPU和PG包含允许他们在忙时指示的电路。 这些信号被馈送到信号处理器,以指示CPU和PG何时准备启动另一个指令。 信号处理器的作用是防止在系统时钟之间的噪声干扰导致另一个操作在一个进程完成之前启动。 信号处理器的输出变为系统使用的主时钟信号。

    Interruptable multiply and/or divide operations for use with an interrupt in a medical device processor
    7.
    发明授权
    Interruptable multiply and/or divide operations for use with an interrupt in a medical device processor 失效
    用于医疗设备处理器中断的可中断乘法和/或除法操作

    公开(公告)号:US06286346B1

    公开(公告)日:2001-09-11

    申请号:US09070407

    申请日:1998-04-30

    IPC分类号: G06F9302

    摘要: A method and apparatus including conditional add and conditional add/subtract instructions are provided for use in the instruction set of a medical device instruction processor. More specifically, the conditional add and add/subtract instructions are provided to add two operands if a predetermined condition is satisfied within the instruction processor hardware. Additionally, the conditional add/subtract instruction may be used to subtract one operand from another operand if the predetermined condition is not satisfied. These instructions are adapted for use in implementing an efficient, interruptible, firmware-controlled multiplication or division mechanism. The inventive system allows multiplication or division operations to be interrupted at various intermediate points during the multiplication or division operation to thereby reducing interrupt latency.

    摘要翻译: 提供了一种包括条件加法和条件加法/减法指令的方法和装置,用于医疗器械指令处理器的指令集。 更具体地,如果在指令处理器硬件内满足预定条件,则提供条件加法和减法指令以添加两个操作数。 此外,如果不满足预定条件,则可以使用条件加法/减法指令从另一个操作数中减去一个操作数。 这些指令适用于实现高效,可中断的固件控制的乘法或除法机制。 本发明的系统允许在乘法或除法操作期间在各个中间点中断乘法或除法运算,从而减少中断等待时间。

    Peripheral memory patch and access method for use with an implantable medical device
    8.
    发明授权
    Peripheral memory patch and access method for use with an implantable medical device 有权
    用于可植入医疗器械的外围存储器补片和存取方法

    公开(公告)号:US06200265B1

    公开(公告)日:2001-03-13

    申请号:US09293699

    申请日:1999-04-16

    IPC分类号: A61B500

    摘要: A peripheral memory patch apparatus for attachment to a patient's skin includes a high capacity memory for storing physiologic data uplinked from an implantable medical device. A resilient substrate provides support for a memory, microprocessor, receiver, and other electronic components. The substrate flexes in a complimentary manner in response to a patient's body movements. The substrate is affixed to the patient's skin with the use of an adhesive which provides for comfort and wearability. The low profile peripheral patch apparatus is preferably similar in size and shape to a standard bandage, and may be attached to the patient's skin in an inconspicuous location. A status indicator provides for a visual, verbal, or tactile indication of the operational status of the peripheral memory patch. Uplinking of physiologic telemetry data from the internal memory of an implantable medical device to the peripheral memory patch is initiated in response to a transfer signal produced by the peripheral memory patch. The transfer signal may be generated by the implantable medical device or upon actuation of a switch by the patient. Various telemetry techniques including radio frequency, acoustic, and body bus telemetry techniques, may be employed to transfer information between the implantable medical device and the peripheral memory patch.

    摘要翻译: 用于附接到患者皮肤的外围存储器贴片装置包括用于存储从可植入医疗装置上行链接的生理数据的高容量存储器。 弹性基板为存储器,微处理器,接收器和其他电子部件提供支持。 衬底以互补的方式响应于患者的身体运动而弯曲。 使用提供舒适性和耐磨性的粘合剂将基底固定到患者的皮肤上。 优选的外形贴片装置的尺寸和形状优选与标准绷带相似,并且可以在不显眼的位置附接到患者的皮肤上。 状态指示器提供对外围存储器补丁的操作状态的视觉,口头或触觉指示。 响应于由外围存储器补片产生的传送信号,启动从可植入医疗装置的内部存储器到外围存储器补片的生理遥测数据的上行。 转移信号可以由可植入医疗装置产生,也可以由患者致动开关产生。 可以使用包括射频,声学和身体总线遥测技术在内的各种遥测技术来在可植入医疗设备和外围存储器补片之间传送信息。