Simple analog edge detection circuit based on vertebrate retina

2009 ◽  
Vol 16 (5) ◽  
pp. 521-525 ◽  
Author(s):  
Kimihiro Nishio
Keyword(s):  
Edge Detection ◽  
Vertebrate Retina ◽  
Detection Circuit ◽  
Simple Analog

A Low-Power Edge Detection Technique for Sensor Wake-Up Applications

2015 ◽  
Vol 24 (10) ◽  
pp. 1550157 ◽  
Author(s):  
Yao Wang ◽  
Haibo Wang ◽  
Guangjun Wen
Keyword(s):  
Edge Detection ◽  
Low Power ◽  
Process Variations ◽  
Design Guidelines ◽  
Detection Sensitivity ◽  
Ultra Low Power ◽  
Mos Transistor ◽  
Detection Circuit ◽  
Current Change ◽  
Small Voltage

A novel low-power edge detection circuit is presented in this work. Upon the arrival of signal falling edge, the proposed design establishes a small voltage difference between the gate and source terminals of a MOS transistor which slightly increases the MOS transistor leakage current. A current integration-based approach is used to robustly sense the current change and subsequently detect the signal falling edge. The design is suitable for ultra-low-power sensor wake-up circuits. Design guidelines for achieving optimal detection sensitivity as well as the implementation of calibration circuits for coping with process variations and mismatches are discussed in the paper. Simulation results are presented to demonstrate the performance of the proposed circuit.

Analog Motion Detection Circuits Using Simple Edge Detection Circuits Based on the Vertebrate Retina

2009 ◽  
Vol 42 (16) ◽  
pp. 62-67
Author(s):  
Wan Nor Dalila binti Wan Mahmood ◽  
Siti Nur Ain binti Mehat ◽  
Kimihiro Nishio
Keyword(s):  
Edge Detection ◽  
Motion Detection ◽  
Vertebrate Retina
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