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

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

Inactive Publication Date: 2013-04-24
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, so the action potential generated by the neuron and its time-encoded analog-digital signal and the input information relationship is unclear

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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. The pulse trigger of the analog-to-digital signal. 2. Pulse-current conversion is equivalent to the inward current conversion of the presynaptic membrane caused by a single action potential; 3. The time integral of multiple single pulse currents is equivalent to the time sum of calcium inflow caused by the time series of action potentials; 4. The time-integrated current (or electrical change) filtering 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 analog-to-digital signal. Taking time as the analog quantity, the time of the analog-digital signal corresponding to the number of pulses of the action potential can be subdivided infinitely, but the width of the pulse is limited. The width of the pulse should be less than the reciprocal of the pulse frequency. Therefore, the pulse width as an analog...

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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 analog quantity and pulse as 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 action potentials of "full" or "none" and relatively unattenuated after being stimulated by various mechano-electrochemical stimuli. Digital quantity) and the time (delay, an analog quantity) generated by each action potential, that is, a real analog-digital coded signal. The analog-to-digital decoding device of the present invention converts an analog-to-digital signal with time (analog quantity) and pulse number (digital quantity) into a time-varying analog signal, and can also be used as a frequency-to-amplitude conversion device. Background technique [0002] The basic structural and functional unit of the central nervous system is the neuron...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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