A 0.5 V < 4 µW CMOS Light-to-Digital Converter Based on a Nonuniform Quantizer for a Photoplethysmographic Heart-Rate Sensor.
Mohammad AlhawariNadya AlbelooshiMichael H. PerrottPublished in: IEEE J. Solid State Circuits (2014)
Keyphrases
- heart rate
- analog to digital converter
- cmos image sensor
- image sensor
- blood pressure
- heart rate variability
- circuit design
- vital signs
- physiological signals
- vector quantization
- physical activity
- data conversion
- low voltage
- single chip
- mixed signal
- dynamic range
- low power
- sensor networks
- high speed
- coding scheme
- low cost
- image compression
- charge coupled device
- liquid crystal
- power consumption
- spectral analysis
- control method