Delta-sigma modulator for outputting analog representation...

Details Delta-sigma modulator for outputting analog representation... Delta-sigma modulator for outputting analog representation...

2007-05-01

2007-05-01

Winakur, Eric F. (Department: 3768)

Surgery

Diagnostic testing

Measuring or detecting nonradioactive constituent of body...

C600S324000, C600S500000

Reexamination Certificate

active

10787853

ABSTRACT:
A method and apparatus for providing a substantially real-time representation of an analog representation of a physiological signal is provided. The waveform signal from the sensor is converted into digital form. A delta-sigma modulator is used as a simple Digital-to-analog Converter (DAC). The output can then be provided through a simple hardware filter to give an analog output signal in nearly real-time, which can be used for other instruments, synchronization, display, etc.

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