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1.发明授权Implantable medical device with adjustable sigma-delta analog-to-digital conversion clock rate 有权具有可调Σ-Δ模数转换时钟速率的可植入医疗器械公开(公告)号：US07345607B1
公开(公告)日：2008-03-18
申请号：US11536942
申请日：2006-09-29
IPC分类号： H03M3/00
CPC分类号： H03M3/32 , A61N1/3704 , H03M3/498
摘要： An implantable medical device, such as a pacemaker or implantable cardioverter defibrillator, uses digital signal processing channels to process sensed time varying signals representing cardiac activity. Each digital signal processing channels includes a sigma-Delta analog-to-digital converter. The clock rate of each sigma-delta analog-to-digital converter is controlled as a function of a signal detection threshold for its respective digital signal processing channel. For higher threshold levels, a reduced clock rate for the sigma-delta analog-to-digital converter results in reduced power consumption and longer battery life.
摘要翻译： 可植入医疗装置，例如起搏器或植入式心律转复除颤器，使用数字信号处理通道来处理表示心脏活动的感测时变信号。 每个数字信号处理通道包括一个Σ-Δ模数转换器。 每个Σ-Δ模数转换器的时钟速率被控制为其相应的数字信号处理通道的信号检测阈值的函数。 对于更高的阈值电平，Σ-Δ模数转换器的降低的时钟频率导致功耗降低并延长电池寿命。
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2.发明申请IMPLANTABLE MEDICAL DEVICE WITH ADJUSTABLE SIGMA-DELTA ANALOG-TO-DIGITAL CONVERSION CLOCK RATE 有权具有可调整SIGMA-DELTA模拟数字转换时钟速率的可植入医疗设备公开(公告)号：US20080079617A1
公开(公告)日：2008-04-03
申请号：US11536942
申请日：2006-09-29
IPC分类号： H03M1/66
CPC分类号： H03M3/32 , A61N1/3704 , H03M3/498
摘要： An implantable medical device, such as a pacemaker or implantable cardioverter defibrillator, uses digital signal processing channels to process sensed time varying signals representing cardiac activity. Each digital signal processing channels includes a sigma-Delta analog-to-digital converter. The clock rate of each sigma-delta analog-to-digital converter is controlled as a function of a signal detection threshold for its respective digital signal processing channel. For higher threshold levels, a reduced clock rate for the sigma-delta analog-to-digital converter results in reduced power consumption and longer battery life.
摘要翻译： 可植入医疗装置，例如起搏器或植入式心律转复除颤器，使用数字信号处理通道来处理表示心脏活动的感测时变信号。 每个数字信号处理通道包括一个Σ-Δ模数转换器。 每个Σ-Δ模数转换器的时钟速率被控制为其相应的数字信号处理通道的信号检测阈值的函数。 对于更高的阈值电平，Σ-Δ模数转换器的降低的时钟频率导致功耗降低并延长电池寿命。
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