Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: A charge potential distributed over a vehicle body resulting from the contact, separation, and friction between a tire and a road surface is detected by a detecting unit provided with a sensing electrode that is disposed on the external surface of the vehicle body, a reference electrode that is disposed apart from the external surface of the vehicle body with a space therebetween, and a sensor amplifier that senses a potential between the sensing electrode and the reference electrode as a signal and amplifies the signal. And the amplitude of the charge potential detected by the detecting unit is monitored by a data processing unit, thereby making it possible to accurately identify not only the state of the road surface but also an internal pressure state of the tire, a wear state of the tire, and the like during vehicular travel.

Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: An object of the present invention is to make it possible to accurately grasp the state inside an object to be measured. According to the present invention there is provided a measuring apparatus comprising: quasi-electrostatic field generating means generating a quasi-electrostatic field of higher strength as compared with a radiated electric field and an induced electromagnetic field; quasi-electrostatic field detecting means detecting a result of interaction between the quasi-electrostatic field generated by the quasi-electrostatic field generating means and applied to a human body, and an electric field corresponding to a potential change caused by a biological reaction inside the human body; and extracting means extracting the potential change from the result of interaction.

Abstract: A charge potential distributed over a vehicle body resulting from the contact, separation, and friction between a tire and a road surface is detected by a detecting unit provided with a sensing electrode that is disposed on the external surface of the vehicle body, a reference electrode that is disposed apart from the external surface of the vehicle body with a space therebetween, and a sensor amplifier that senses a potential between the sensing electrode and the reference electrode as a signal and amplifies the signal. And the amplitude of the charge potential detected by the detecting unit is monitored by a data processing unit, thereby making it possible to accurately identify not only the state of the road surface but also an internal pressure state of the tire, a wear state of the tire, and the like during vehicular travel.

Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: The present invention provides a detection apparatus, including: signal outputting means configured to output signals of a frequency band within which the difference in electric characteristic between different tissues of a living organism is higher than a predetermined level individually to two or more electrodes; impedance detection means configured to detect, from each of the electrodes, an impedance of the living organism disposed in quasi-electrostatic fields generated individually from the electrodes in response to the outputs; and colloid detection means configured to detect presence or absence of colloid in the inside of the living organism in response to the differences between the detected impedances.

Abstract: The present invention provides an electric field control device that can transmit a quasi-electrostatic field more efficiently. There is provided an electric field control device that applies electric fields to an electric field application subject, which includes a first electrode and a second electrode that generate the electric fields, a frame that is arranged around the first electrode and second electrode, and is connected to the first electrode and second electrode, an opening that is formed at one end of the frame, and an output unit that outputs a first signal to the first electrode, and outputs a second signal to the second electrode, wherein, when the electric fields are generated from the first electrode and second electrode, the output unit outputs the second signal to the second electrode so that the potential of the frame is not changed temporally and made constant.

Abstract: A distance detection system is disclosed. The distance detection system includes an electric-field forming apparatus and an electric-field receiving apparatus. Quasi-electrostatic-field forming means is included in the electric-field forming apparatus. The quasi-electrostatic-field forming means is for forming quasi-electrostatic fields for a plurality of frequencies. The intensity of the quasi-electrostatic field for each frequency falls below a predetermined threshold intensity at a different distance from the quasi-electrostatic-field forming means. Distance detection means is included in either one of the electric-field forming apparatus and the electric-field receiving apparatus. The distance detection means is for detecting a distance between the electric-field forming apparatus and the electric-field receiving apparatus, based on the frequency of a quasi-electrostatic field received by the electric-field receiving apparatus.

Abstract: The apparatus enables biometric authentication without the risk of forgery or the like and enables living-tissue discrimination. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. Long-wavelength light, e.g., near-infrared light, is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure. The living-tissue discrimination may be made using the subcutaneous blood vessel.

Abstract: The present invention enables permanent biometric authentication without the risk of forgery or the like. The present invention enables living-tissue discrimination as well as biometric authentication. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Then, biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. In this case, long-wavelength light, e.g., near-infrared light is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure.

Abstract: A marker detection apparatus detects a marker attached to a target sample from samples flowing in a sample flow, including: an electric field formation section that forms a quasi-electrostatic field in a path of the sample flow; and a detection section that detects, when the target sample labeled by the marker that is a particle made from a piezoelectric or electrostrictive substance of a unique vibration frequency gets into the quasi-electrostatic field, the vibration of the particle.

Abstract: Provided are a detection device and a detection method that are based on a novel principle and able to detect blood vessels and other various targets with high sensitivity and accuracy. A detection device includes: m electrodes that generate at least around one straight line m rotationally symmetric electric charges (m is an even number that is greater than or equal to 4) whose total amount of charge is substantially 0; and at least one electric field detection element that detects an electric field on the straight line. The m electric charges are a quadrupole, a planar hexapole, a planar octupole, a three-dimensional octupole and the like. In order to make the quadrupole, four electrodes (11 to 14) are disposed at the vertexes of a square. At the center of these electrodes (11 to 14), a detection electrode (20) is disposed. The detection device is used in making up a vein sensing device and the like.

Abstract: The present invention enables permanent biometric authentication without the risk of forgery or the like. The present invention enables living-tissue discrimination as well as biometric authentication. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Then, biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. In this case, long-wavelength light, e.g., near-infrared light is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure.

Abstract: The present invention enables permanent biometric authentication without the risk of forgery or the like. The present invention enables living-tissue discrimination as well as biometric authentication. The roughness distribution pattern of deep-layer tissue of the skin covered with epidermal tissue is detected, thereby extracting a unique pattern of the living tissue. Then, biometric authentication is performed based upon the detected pattern. The roughness distribution pattern of the deep-layer tissue of the skin is optically detected using difference in optical properties between the epidermal tissue and the deep-layer tissue of the skin. In this case, long-wavelength light, e.g., near-infrared light is used as illumination light cast onto the skin tissue. A fork structure of a subcutaneous blood vessel is used as the portion which is to be detected, for example. The portion which is to be detected is determined based upon the structure of the fork structure.

Abstract: A marker detection apparatus detects a marker attached to a target sample from samples flowing in a sample flow, wherein the sample flow carries a low ionization-tendency metal fine particle selected from a group of Au to Ag and the target sample labeled by the marker that is a particle of a unique vibration frequency, the marker detection apparatus including: an electromagnetic wave applying section that applies an electromagnetic wave to a path of the sample flow under a condition that the radius of the metal fine particle is smaller than the wavelength of the electromagnetic wave; and a detection section that detects vibration of the particle attached to the target sample, the vibration arising from a quasi-electrostatic field generated on the surface of the metal fine particle when the electromagnetic wave is applied to the metal fine particle around the target sample in the sample flow.

Abstract: Herein disclosed is a communication device which includes: a piezoelectric element having a structure formed by laminating piezoelectric substances and electrodes; obtaining means for obtaining acoustic data superimposed on a quasi-electrostatic field formed on a living body from the electrode of the piezoelectric element; and driving means for driving the piezoelectric element as a speaker by outputting the acoustic data to the electrodes of the piezoelectric element.

Abstract: A marker detection apparatus detects a marker attached to a target sample from samples flowing in a sample flow, including: an electric field formation section that forms a quasi-electrostatic field in a path of the sample flow; and a detection section that detects, when the target sample labeled by the marker that is a particle made from a piezoelectric or electrostrictive substance of a unique vibration frequency gets into the quasi-electrostatic field, the vibration of the particle.