Cardiac rhythm management system with differential

专利名称：Cardiac rhythm management system with

differential sensing channel

发明人：Michael W. Dooley,Ronald

Balczewski,William J. Linder

申请号：US09378403申请日：19990820公开号：US06363277B1公开日：20020326

专利附图：

摘要：A differential discrete-time signal processing channel differentially processescardiac signals in an implantable cardiac rhythm management device. Such signal

processing effectively uses downsampling to uses lower bias currents, thereby savingpower and prolonging the life of the implanted device, and also reduces clock

feedthrough, provides a wider dynamic range and better rejection of power supply noise.The device includes a continuous-time buffer, a decimator/averager and/or other filterand/or amplifier circuits, and an analog-to-digital converter, each configured for

processing differential signals. The device also includes an operational transconductanceamplifier (OTA), for the discrete-time differential signal processing. The OTA provides,among other things, an output common mode adjustment circuit and an offsetcompensation circuit.

申请人：CARDIAC PACEMAKERS, INC.

代理机构：Schwegman, Lundberg, Woessner & Kluth, P.A.

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