The Experts below are selected from a list of 7911 Experts worldwide ranked by ideXlab platform
K. Taki - One of the best experts on this subject based on the ideXlab platform.
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a built in technique for probing power supply and ground noise distribution within large scale digital integrated Circuits
IEEE Journal of Solid-state Circuits, 2005Co-Authors: M. Nagata, Tadashi Okumoto, K. TakiAbstract:Design of noise Detector Circuits as compact as standard logic cells is proposed. High-density large-scale digital integrated Circuits that embed such built-in noise Detectors enable in-depth characterization of dynamic power supply and ground noises. Dependence of power supply and ground voltage drops on the location of active cell rows within 1.8-V standard cell-based digital Circuits are consistently measured by 1.8- and 2.5-V built-in Detectors fabricated in a 0.18-/spl mu/m CMOS triple-well technology. Measurements also show that ground noise distribution is distinctively more localized than power supply counterparts due to the presence of a substrate.
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A built-in technique for probing power-supply noise distribution within large-scale digital integrated Circuits
2004 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.04CH37525), 2004Co-Authors: Tadashi Okumoto, M. Nagata, K. TakiAbstract:Noise Detector Circuits as compact as standard logic cells for being embedded within a high-density large-scale digital circuit enable in-depth characterization of dynamic power-supply and ground noises. Voltage drops at the locations of active cell rows within 1.8-V standard cell based digital Circuits are consistently measured by 1.8-V and 2.5-V built-in Detectors in a 0.18-/spl mu/m CMOS triple well technology. Measurements show that the ground-noise distribution is distinctively more localized than the power-supply counterpart due to the presence of a substrate.
M. Nagata - One of the best experts on this subject based on the ideXlab platform.
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a built in technique for probing power supply and ground noise distribution within large scale digital integrated Circuits
IEEE Journal of Solid-state Circuits, 2005Co-Authors: M. Nagata, Tadashi Okumoto, K. TakiAbstract:Design of noise Detector Circuits as compact as standard logic cells is proposed. High-density large-scale digital integrated Circuits that embed such built-in noise Detectors enable in-depth characterization of dynamic power supply and ground noises. Dependence of power supply and ground voltage drops on the location of active cell rows within 1.8-V standard cell-based digital Circuits are consistently measured by 1.8- and 2.5-V built-in Detectors fabricated in a 0.18-/spl mu/m CMOS triple-well technology. Measurements also show that ground noise distribution is distinctively more localized than power supply counterparts due to the presence of a substrate.
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A built-in technique for probing power-supply noise distribution within large-scale digital integrated Circuits
2004 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.04CH37525), 2004Co-Authors: Tadashi Okumoto, M. Nagata, K. TakiAbstract:Noise Detector Circuits as compact as standard logic cells for being embedded within a high-density large-scale digital circuit enable in-depth characterization of dynamic power-supply and ground noises. Voltage drops at the locations of active cell rows within 1.8-V standard cell based digital Circuits are consistently measured by 1.8-V and 2.5-V built-in Detectors in a 0.18-/spl mu/m CMOS triple well technology. Measurements show that the ground-noise distribution is distinctively more localized than the power-supply counterpart due to the presence of a substrate.
Tadashi Okumoto - One of the best experts on this subject based on the ideXlab platform.
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a built in technique for probing power supply and ground noise distribution within large scale digital integrated Circuits
IEEE Journal of Solid-state Circuits, 2005Co-Authors: M. Nagata, Tadashi Okumoto, K. TakiAbstract:Design of noise Detector Circuits as compact as standard logic cells is proposed. High-density large-scale digital integrated Circuits that embed such built-in noise Detectors enable in-depth characterization of dynamic power supply and ground noises. Dependence of power supply and ground voltage drops on the location of active cell rows within 1.8-V standard cell-based digital Circuits are consistently measured by 1.8- and 2.5-V built-in Detectors fabricated in a 0.18-/spl mu/m CMOS triple-well technology. Measurements also show that ground noise distribution is distinctively more localized than power supply counterparts due to the presence of a substrate.
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A built-in technique for probing power-supply noise distribution within large-scale digital integrated Circuits
2004 Symposium on VLSI Circuits. Digest of Technical Papers (IEEE Cat. No.04CH37525), 2004Co-Authors: Tadashi Okumoto, M. Nagata, K. TakiAbstract:Noise Detector Circuits as compact as standard logic cells for being embedded within a high-density large-scale digital circuit enable in-depth characterization of dynamic power-supply and ground noises. Voltage drops at the locations of active cell rows within 1.8-V standard cell based digital Circuits are consistently measured by 1.8-V and 2.5-V built-in Detectors in a 0.18-/spl mu/m CMOS triple well technology. Measurements show that the ground-noise distribution is distinctively more localized than the power-supply counterpart due to the presence of a substrate.
Le X Polozec - One of the best experts on this subject based on the ideXlab platform.
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nonsquarelaw behavior of diode Detectors analyzed by the ritz galerkin method
IEEE Transactions on Microwave Theory and Techniques, 1994Co-Authors: R G Harrison, Le X PolozecAbstract:It is widely believed that diode Detectors exhibit true square-law behavior at low power levels, and that at higher power levels there is a gradual change to a linear (peak-detecting) law. This paper demonstrates that this idea is correct only under restrictive conditions, and that slopes corresponding to eighth and higher-order laws can easily be encountered in practical situations. It is shown that these high-order slopes are inherent in conventional diode Detector Circuits and that the behavior can be predicted by a closed-form solution involving both exponential and modified Bessel functions. The nonlinear theory, which does not depend on a truncated power-series approximation to the diode I-V characteristic, is confirmed by measured data. >
Felix Felmy - One of the best experts on this subject based on the ideXlab platform.
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Behavioral/Systems/Cognitive Medial Superior Olivary Neurons Receive Surprisingly Few Excitatory and Inhibitory Inputs with Balanced Strength and Short-Term Dynamics
2015Co-Authors: Kiri Couchman, Benedikt Grothe, Felix FelmyAbstract:Neurons in themedial superior olive (MSO) processmicrosecond interaural time differences, themajor cue for localizing low-frequency sounds, by comparing the relative arrival time of binaural, glutamatergic excitatory inputs. This coincidence detection mechanism is additionally shaped by highly specialized glycinergic inhibition. Traditionally, it is assumed that the binaural inputs are conveyed by many independent fibers, but such an anatomical arrangement may decrease temporal precision. Short-term depression on the other hand might enhance temporal fidelity during ongoing activity. For the first time we show that binaural coincidence detection in MSO neurons may require surprisingly few but strong inputs, challenging long-held assumptions about mammalian coincidence detection. This study exclusively uses adult gerbils for in vitro electrophysiology, single-cell electroporation and immunohistochemistry to char-acterize the size and short-term plasticity of inputs to the MSO. We find that the excitatory and inhibitory inputs to the MSO are well balanced both in strength and short-term dynamics, redefining this fastest of all mammalian coincidence Detector Circuits
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medial superior olivary neurons receive surprisingly few excitatory and inhibitory inputs with balanced strength and short term dynamics
The Journal of Neuroscience, 2010Co-Authors: Kiri Couchman, Benedikt Grothe, Felix FelmyAbstract:Neurons in the medial superior olive (MSO) process microsecond interaural time differences, the major cue for localizing low-frequency sounds, by comparing the relative arrival time of binaural, glutamatergic excitatory inputs. This coincidence detection mechanism is additionally shaped by highly specialized glycinergic inhibition. Traditionally, it is assumed that the binaural inputs are conveyed by many independent fibers, but such an anatomical arrangement may decrease temporal precision. Short-term depression on the other hand might enhance temporal fidelity during ongoing activity. For the first time we show that binaural coincidence detection in MSO neurons may require surprisingly few but strong inputs, challenging long-held assumptions about mammalian coincidence detection. This study exclusively uses adult gerbils for in vitro electrophysiology, single-cell electroporation and immunohistochemistry to characterize the size and short-term plasticity of inputs to the MSO. We find that the excitatory and inhibitory inputs to the MSO are well balanced both in strength and short-term dynamics, redefining this fastest of all mammalian coincidence Detector Circuits.