Analog-digital decoding method and device based on neuron working principle

A working principle and neuron technology, applied in analog/digital conversion, electrical components, code conversion, etc., can solve problems such as unclear relationships

Inactive Publication Date: 2010-07-07
SOUTHERN MEDICAL UNIVERSITY
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Problems solved by technology

Just because a neuron can accept tens of thousands of synaptic connections, that is, there may be thousands of sums of input information, s

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  • Analog-digital decoding method and device based on neuron working principle
  • Analog-digital decoding method and device based on neuron working principle
  • Analog-digital decoding method and device based on neuron working principle

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Embodiment Construction

[0017] The method for realizing the present invention mainly includes four parts: 1. Pulse triggering of modulus signal. 2. Pulse-current conversion, which is equivalent to the presynaptic membrane inward current conversion caused by a single action potential; 3. The time integration of multiple single pulse currents, is equivalent to the total time of calcium influx caused by the action potential time sequence; 4. The filtering of integrated current (or electrical change) over time is equivalent to the balance process of calcium influx due to the relatively long time course of calcium ion influx.

[0018] 1. Pulse trigger of modulus signal. Taking time as an analog quantity, the time of an analog-digital signal equivalent to the number of pulses of the action potential as a digital quantity can be infinitely subdivided, but the pulse width is limited. The pulse width should be less than the reciprocal of the pulse frequency. Therefore, the pulse width as an analog-digital sign...

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Abstract

The invention discloses an analog-digital (integrated coding information taking time as analog quantity and pulse as digital quantity) decoding method and a device based on the neuron working principle. The device comprises a pulse width adjusting circuit, a RC integrating circuit and a low-pass filter circuit. The pulse width adjusting circuit adjusts the widths of a series of pulses arranged according to the time sequence, the RC integrating circuit carries out RC integration on the series of pulses which are arranged according to the time sequence and subjected to the pulse width adjustment, and the low-pass filter circuit filters signals subjected to the RC integration so as to restore the series of pulses arranged according to the time sequence to input signals corresponding to the pulses. In the invention, the analog-digital decoding device based on the neuron working principle is designed by simulating the decoding mechanism of biological neurons on time-pulse coding signals, and the information processing mode is realized by using a circuit method.

Description

Technical field [0001] The present invention relates to a modulus (coding information integrated with time as an analog quantity and pulse as a digital quantity) decoding method and device based on the working principle of central neuron. Specifically, in the modulus decoding device of the present invention , All central neurons produce "full" or "none", relatively non-decaying action potentials after being stimulated by various mechanical and electrochemical stimulations. The main feature of the firing pattern of action potentials is the number of action potentials (equivalent to electrical pulses) ( Digital quantity) and the time (delay, a kind of analog quantity) generated by each action potential, that is, it is expressed as a real analog-digital coded signal. The analog-digital decoding device of the present invention is a device that converts an analog-digital signal with time (analog) and pulse number (digital) into a time-varying analog signal, and can also be used as a ...

Claims

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Application Information

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IPC IPC(8): H03M1/50H03K5/04
Inventor 肖中举梁妃学邓亲恺周凌宏张正刚
Owner SOUTHERN MEDICAL UNIVERSITY
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