?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Compact+Integrated+Transconductance+Amplifier+Circuit+for+Temporal+Differentiation&rft.creator=Stocker%2C+Dr.+Alan&rft.subject=Dynamical+Systems&rft.subject=Machine+Vision&rft.subject=Artificial+Intelligence&rft.subject=Robotics&rft.description=A+compact+integrated+CMOS+circuit+for+temporal+differentiation+is+presented.+It+consists+of+a+high-gain+inverting+amplifier%2C+an+active+non-linear+transconductance+and+a+capacitor+and+requires+only+4+transistors+in+its+minimal+configuration.The+circuit+provides+two+rectified+current+outputs+that+are+proportional+to+the+temporal+derivative+of+the+input+voltage+signal.+Besides+the+compactness+of+its+design%2C+the+presented+circuit+is+not+dependent+on+the+DC-value+of+the+input+signal%2C+as+compared+with+known+integrated+differentiator+circuits.+Measured+chip+results+show+that+the+circuit+operates+on+a+large+input+frequency+range+for+which+it+provides+nearideal+temporal+differentiation.+The+circuit+is+particularly+suited+for+focal-plane+implementations+of+gradient-based+visual+motion+systems.&rft.date=2003&rft.type=Conference+Paper&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.identifier=http%3A%2F%2Fcogprints.org%2F3261%2F1%2FStocker2003.pdf&rft.identifier=++Stocker%2C+Dr.+Alan++(2003)+Compact+Integrated+Transconductance+Amplifier+Circuit+for+Temporal+Differentiation.++%5BConference+Paper%5D+++++&rft.relation=http%3A%2F%2Fcogprints.org%2F3261%2F