WO2017012031A1

WO2017012031A1 - Nerve sensing device capable of suppressing interactive interference

Info

Publication number: WO2017012031A1
Application number: PCT/CN2015/084602
Authority: WO
Inventors: 林伯刚
Original assignee: 林伯刚
Priority date: 2015-07-21
Filing date: 2015-07-21
Publication date: 2017-01-26

Abstract

A nerve sensing device capable of suppressing interactive interference comprises a sensing unit array (20), a control signal generator (30), and a signal processing module (40). The sensing unit array (20) is provided with multiple sensing units (21). Each of the multiple sensing units (21) generates a sensing signal. The control signal generator (30) is connected to the sensing unit array (20), generates a control signal and outputs the control signal to the circumference of each of the multiple sensing units (21). The signal strength of the control signal is lower than the signal strength of the sensing signal, so as to isolate sensing signals among the sensing units (21) of the multiple sensing units (21), so as to suppress interactive interference. The signal processing module (40) is connected to the sensing unit array (20) and the control signal generator (30), generates a processing signal, and outputs the processing signal to at least one neuron (50). The sensing signal is higher than a sensing threshold of the at least one neuron (50), and the control signal is lower than a sensing threshold of the at least one neuron (50).

Description

Neural sensing device with suppression of crosstalk

Technical field

The present disclosure relates to a neural sensing device, and more particularly to a neural sensing device having a suppression of interference to prevent neurons from being interfered with each other by a plurality of dense signals.

Background technique

In 2002, Second Sight Medical Products Inc. conducted a human transplant for the experimental electronic eye Argus I produced by six blind patients. Argus I is a bionic eye. It has a resolution of 16 pixels, allowing blind patients to recognize the contour of the object through the difference in brightness reflected from the surface of the object. In 2006, the company released the second-generation Argus II, which upgrades image resolution to 60 pixels, providing users with better resolution and image recognition accuracy.

The prior art experimental electronic eye Argus II device includes an image pickup device disposed outside the user and an image receiving wafer disposed in the user body, wherein the image pickup device includes a frame, a miniature camera, and a Image processing unit, a wireless communication module. The frame is removably disposed on the face of the user, and the micro camera and the wireless communication module are disposed thereon. The miniature camera is used to pick up images in front of the user and generate a photographic information. The image processing unit is disposed outside the frame and connected to the miniature camera. The image processing unit receives the photography information of the miniature camera and generates a digital image signal. At this time, the wireless communication module receives the digital image information of the image processing unit, and transmits the digital image information to the image receiving wafer. The image receiving wafer is disposed on the retina of the user and is coupled to at least one optic ganglion on the retina of the user. The image receiving chip converts the digital image information into a nerve peak, and transmits the nerve peak to the user's brain through the at least one optic ganglion, so that the user perceives an image.

However, in the prior art, the image receiving chip needs to add more photosensitive cells to the finite-sized wafer to increase the pixel value in order to improve the resolution and recognition rate of the image by the user, and the gap between the photosensitive cells at this time. More recently, it will be easier to make the sense of each photosensitive unit work. The measured signals interfere with each other, reducing the original effective pixel value. Referring to FIG. 1, when the sensing signals of two adjacent photosensitive cells 10 interfere with each other, the signal superimposed between the two adjacent photosensitive cells 10 is higher than a sensing valve of at least one of the user's optic ganglia. For example, at least one optic ganglion of the user will equally recognize the two photosensitive units 10 as a large-area photosensitive unit 11 and transmit the received sensing signals to the user's brain. If all the photosensitive cells 10 interfere with each other, the user will perceive a blurred light and shadow, and cannot recognize the image by the contour of the object, so that the image receiving wafer with high pixels loses the resolution and recognition rate of the user. Features.

Accordingly, the present disclosure proposes a neural sensing device having an interference suppression and avoiding interference of a plurality of dense signals with each other, which has the characteristics of small volume and high neurosensory sensitivity and accuracy. It is indeed a technical problem that is urgently solved by all walks of life.

Summary of the invention

(1) Technical problems to be solved

In view of the aforementioned shortcomings of the prior art, the main object of the present disclosure is to provide a neural sensing device with suppressed interference, which can prevent neurons from being subjected to multiple dense signals to each other without sacrificing resolution. Interference, thereby achieving the purpose of improving the sensitivity and accuracy of nerve sensing.

(2) Technical plan

In order to achieve the foregoing and other objects, the present invention provides a neural sensing device with interference suppression interference, comprising: a sensing unit array configured with a plurality of sensing units, among the plurality of sensing units Each sensing unit generates a sensing signal; a control signal generator connected to the sensing unit array, generating a control signal and outputting the control signal to each of the plurality of sensing units Surrounding the sensing unit, wherein a signal strength of the control signal is lower than a signal strength of the sensing signal to isolate a sensing signal between each sensing unit of the plurality of sensing units, so that Suppressing an interference; and a signal processing module coupled to the sensing unit array and the control signal generator, and generating a processing signal and outputting the processing signal to at least one neuron; The sensing signal is higher than a sensing threshold of the at least one neuron, and the sensing signal is lower than a sensing valve of the at least one neuron value.

Preferably, the sensing unit array may be a photodiode array of an electronic retina wafer, and each of the plurality of sensing units is a photodiode to replace the human retina Photoreceptor cell.

Preferably, the control signal generator is configurable on one side of the sensing unit array of an electronic retina wafer and transmits the control signal to the signal processing module.

Preferably, the neural sensing device is directly connectable to at least one ganglion cell on the human retina.

Preferably, the processing signal can be at least one spike.

(3) Beneficial effects

The embodiments of the present disclosure have at least the following beneficial effects:

The control signal generator generates a control signal and outputs the control signal to each of the plurality of sensing units when the neural sensing device provided with the present disclosure provides interference suppression Surrounding, a sensing signal is used to isolate between the sensing units of the plurality of sensing units to suppress interaction interference, thereby preventing the at least one neuron from malfunctioning. When the sensing unit array senses an image and/or a light source, each of the plurality of sensing units configured on the sensing unit array is based on the image and/or the light source The light intensity distribution in the space generates a sensing signal, and since each of the foregoing control signals is isolated between the plurality of sensing signals, when the sensing unit array senses a densely distributed light intensity change When the image and/or the light source are used, at least one of the neurons can be prevented from being interfered with each other by the plurality of sensing signals at the same time, thereby achieving the purpose of improving the sensitivity and accuracy of the nerve sensing.

DRAWINGS

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only the present disclosure. Some embodiments of the text may also be used to obtain other figures from these figures without departing from the art.

1 is a schematic view showing that sensing signals of two adjacent photosensitive cells of a prior art experimental electronic eye interfere with each other;

2 is a block diagram showing a circuit according to a first embodiment of the present invention, with a neural sensing device for suppressing crosstalk according to the present disclosure;

3 is a schematic diagram showing the appearance of a sensing unit array according to a first embodiment, in accordance with the present disclosure;

4 is a schematic diagram of a neural sensing device with suppression of crosstalk according to the present disclosure, showing a coupling of a sensing signal and a control signal according to the first embodiment;

5 is a neural sensing device with suppression of crosstalk according to the present disclosure, showing a functional block diagram according to a first embodiment.

Description of the reference numerals

10 photosensitive unit

11 photosensitive unit

20 sensing unit array

21 sensing unit

30 control signal generator

40 signal processing module

50 neurons

60 brain

detailed description

The specific embodiments of the present disclosure are further described below in conjunction with the accompanying drawings and embodiments. The following examples are only intended to illustrate the disclosure, but are not intended to limit the scope of the disclosure.

The technical solutions of the embodiments of the present disclosure will be clearly and completely described in the following description of the embodiments of the present disclosure. It is apparent that the described embodiments are part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure are within the scope of the disclosure.

Unless otherwise defined, technical terms or scientific terms used herein shall be taken to mean the ordinary meaning of the ordinary skill in the art to which this disclosure belongs. The words "first", "second" and similar terms used in the specification and claims of the present disclosure do not indicate any Order, quantity, or importance, but only to distinguish between different components. Similarly, the words "a" or "an" and the like do not denote a quantity limitation, but mean that there is at least one. The words "connected" or "connected" and the like are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Upper", "lower", "left", "right", etc. are only used to indicate the relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship is also changed accordingly.

It should be understood that the structures, the proportions, the sizes, and the like, which are illustrated in the drawings of the present specification, are only used for the purpose of the disclosure, and are understood by those skilled in the art, and are not intended to limit the present disclosure. The qualifications that can be implemented are not technically meaningful, and any modification of the structure, change of the proportional relationship, or adjustment of the size should be performed without affecting the effects and objectives of the present disclosure. It is within the scope of the technical content disclosed in the present disclosure.

In accordance with a first embodiment of the present disclosure, a neural sensing device with suppressed interference is described below.

Referring to FIG. 2 and FIG. 3 , the neural sensing device with interference suppression interference provided by the present disclosure includes: a sensing unit array 20 , a control signal generator 30 and a signal processing module 40 . The sensing unit array 20 is configured with a plurality of sensing units 21, and each of the plurality of sensing units 21 generates a sensing signal, wherein each sensing signal is higher than one of the at least one neuron 50. The threshold is sensed to cause at least one neuron 50 to sense valid information and transmit the valid information to the brain 60. According to the first embodiment of the present disclosure, the sensing unit array 20 is a photodiode array of an electronic retina wafer, and each of the plurality of sensing units 21 is a photodiode, Replacing a photoreceptor cell on the human retina, that is, each of the plurality of sensing units 21 as one pixel for sensing a picture, which is used to inject a plurality of senses from the outside The plurality of photon energies of each of the sensing units 21 are converted into electron free energy and output electrical energy to generate a sensing signal corresponding to the plurality of photon energies, and the sensing signals are transmitted to the signal processing module 40.

Referring to FIG. 2 to FIG. 4 , the control signal generator 30 can be connected to the sensing unit array 20 , and can generate a control signal and output the control signal to each of the plurality of sensing units 21 . Surrounding, wherein a signal strength of the control signal is lower than a signal strength of the sensing signal to isolate a sensing signal between each of the plurality of sensing units to suppress interference; and Each control signal is below the sensing threshold of at least one neuron 50 to avoid sensing at least one neuron 50 of valid information. Furthermore, according to the theory of nerve conduction, it is pointed out that at least one neuron 50 has a refractory period for a period of time after being stimulated by an action potential due to the inactivation of the sodium ion (Na ⁺ ) channel. When at least one of the neurons 50 is in an unresponsive period, it will not be able to respond to stimulation of other action potentials. The first embodiment of the present disclosure temporarily causes at least one neuron 50 around each of the plurality of sensing units 21 to be in an unresponsive period by the feature, and suspends the generation of the at least one sensing unit 21. The sensing signal forms a chain reaction around it, and avoids interference with other sensing units, so there is no sense that the signal intensity superimposed between adjacent sensing units 21 is higher than that of at least one neuron 50. The phenomenon of measuring the threshold occurs, and since the signal strength of each control signal does not reach the sensing threshold of at least one neuron 50, it does not constitute effective information for at least one neuron 50 and affects the brain 60 to sense the picture. Identification. In accordance with a first embodiment of the present disclosure, control signal generator 30 may be disposed on one side of sensing unit array 20 of an electronic retina wafer and may transmit control signals to signal processing module 40.

Referring to FIGS. 2 and 5, the signal processing module 40 can be coupled to the sensing unit array 20 and the control signal generator 30, which can generate a processing signal and output the processed signal to at least one neuron 50. According to a first embodiment of the present disclosure, the neural sensing device can be directly coupled to at least one ganglion cell on the human retina to cause the signal processing module 40 to replace the bipolar cell on the human retina And/or horizontal cells, wherein each of the at least one ganglion cell is a nodular construct composed of at least one neuron 50 of identical function. Bipolar cells are used to enhance signal edge differences and improve the sharpness of images perceived by brain 60, ie sharpens; horizontal cells are used to attenuate image edge differences and reduce the sharpness of images perceived by brain 60, ie Blurring.

In a first embodiment of the present disclosure, the processing signal may be at least one spike. After the signal processing module 40 couples the sensing signals of each of the plurality of sensing units 21 with the control signals, at least one spike is generated and output to the at least one neuron 50.

When the invention is initially used, the sensing unit array 20 is first disposed on a user's retina, and at least one sensing unit 21 on the sensing unit array 20 is oriented toward the outside of the user to sense the user's retina. External image. Additionally, the signal processing module 40 is coupled to the human retina At least one ganglion cell transmits a processing signal to at least one neuron 50. Next, the control signal generator 30 generates a control signal and outputs the control signal to the periphery of each of the plurality of sensing units 21 for isolating between the respective sensing units of the plurality of sensing units. The sensing signal is configured to suppress the plurality of sensing signals from interfering with each other while avoiding malfunctioning of at least one of the neurons 50. When the sensing unit array 20 senses an image and/or a light source, each of the plurality of sensing units 21 configured on the sensing unit array 20 is in space according to the image and/or the light source. The light intensity distribution generates a sensing signal, and since each of the foregoing control signals is isolated between the respective sensing signals, when the sensing unit array 20 senses a densely distributed image and/or light source whose intensity is weakly changed, The at least one neuron 50 is prevented from being interfered with each other by a plurality of sensing signals at the same time, thereby achieving the purpose of improving the sensitivity and accuracy of the neural sensing.

While the embodiments have been described with reference to the exemplary embodiments of the embodiments of the invention, it will be understood that Within the scope. In particular, various changes and modifications can be made in the components and/or arrangements of the subject combinations. Alternative uses will be apparent to those skilled in the art, in addition to variations and modifications in the component parts and/or configuration.

Claims

A nerve sensing device with suppressed interference, comprising:

a sensing unit array configured with a plurality of sensing units, each of the plurality of sensing units generating a sensing signal;

a control signal generator coupled to the sensing unit array, generating a control signal and outputting the control signal to a periphery of each of the plurality of sensing units, wherein the controlling A signal strength of the signal is lower than a signal strength of the sensing signal to isolate a sensing signal between each of the plurality of sensing units to suppress crosstalk;

a signal processing module coupled to the sensing unit array and the control signal generator, generating a processing signal and outputting the processing signal to at least one neuron,

Wherein the sensing signal is higher than a sensing threshold of the at least one neuron, and the control signal is lower than a sensing threshold of the at least one neuron.
The neural sensing device with interference suppression interference according to claim 1, wherein the sensing unit array is a photodiode array of an electronic retina wafer, and each of the plurality of sensing units A photodiode to replace photoreceptor cells on the human retina.
The neural sensing device with interference suppression according to claim 1, wherein the control signal generator is disposed on one side of the sensing unit array of an electronic retina wafer, and transmits the control signal To the signal processing module.
The neurosensory device with interference suppression according to claim 1, wherein the neural sensing module is directly connected to at least one ganglion cell on a human retina.
The neural sensing device with suppressed interference according to claim 1, wherein the processed signal is at least one peak.