摘要:
In one embodiment, a system for generating an oscillating signal includes a transconductance amplifier comprising a single-ended output and a differential input. The system also includes only one feedback loop coupled to the transconductance amplifier. The feedback loop includes a low pass filter configured to receive the output of the transconductance amplifier. Also, the feedback loop includes a high pass filter configured to receive the output of the first low pass filter and output a signal to only one terminal of the differential input of the transconductance amplifier.
摘要:
Apparatus for realizing a neural network of a complex structure, such as the Neocognitron, in a neural network processor comprises processing elements corresponding to the neurons of a multilayer feed-forward neural network. Each of the processing elements comprises an MOS analog circuit that receives input voltage signals and provides output voltage signals. The MOS analog circuits are arranged in a systolic array.
摘要:
The invention provides a pattern recognition processing apparatus and a technique for realizing a neural network of a complex structure within the processing apparatus. The apparatus includes a neural network having two-dimensional layers connected to form a feed-forward systolic array. Each two dimensional layer includes a feature extraction layer connected with a positional error absorbing layer. A host system provides inputs to the network. Each layer within the network includes processing elements such as a MOS analog circuit that receives input voltage signals and provides output voltage signals.
摘要:
A low dropout voltage regulator (LDO) is presented that takes into consideration short channel effects of the pass transistor in suppressing ripples that are present at the input node of the LDO from appearing at the output node of the LDO. A sum of the input ripple voltage and the input ripple voltage multiplied by a gain equal to the reciprocal of the intrinsic gain provided by the pass transistor is fed to the gate of the pass transistor. In one embodiment an adaptive stage is utilized to provide the sum to the gate of the pass transistor. The adaptive stage gain adapts to change changing load currents such that the gate voltage is maintained substantially equal to the sum. In another embodiment, the LDO is provided stability by using only on-chip capacitors. The LDO provides stable operation even at small load currents.