Pioneer Corporation

Other

Pioneer Electronic Corporation

Dowa Mining Co., Ltd.

Pioneer Electric Corporation

Yasuo Cho

Atsushi Onoe

Kiyofumi Chikuma

Ayako Yoshida

Takanori Maeda

Satoshi Miyaguchi

Yoshinori Kimura

Jun Suzuki

Yuzo Tasaki

Hirokazu Takahashi

Kiyoshi Tateishi

Takashi Yoshino

Minoru Imaeda

Katsuhiro Imai

Hiroyuki Ota

Mamoru Sato

Shuji Yoshizawa

Yoshiaki Watanabe

Hirofumi Kubota

Kenjiro Fujimoto

Kazuhiko Sato

Masahiro Ishimori

Mamoru Satoh

Takahito Ono

A bio-information measuring apparatus is provided, which suppresses pressure on a capillary vessel of body, stabilizes a measuring result of bio-information, and obtains a good S/N ratio. In an bio-information measuring apparatusin which a self-emission-type sensor devicefor optically measuring bio-information of specimenis attached to an attaching member, the attaching memberis composed of elastic material, and the attaching memberis arranged to be brought into contact with the specimenat the time of measuring the bio-information.

Bio-information measuring apparatus

A light-emitting sensor device is provided with a substrate (); an irradiating part (), disposed on the substrate, for applying light to a specimen; a light receiving part (), disposed on the substrate, for detecting light from the specimen caused by the applied light; a light scattering part, disposed at least one of between the irradiating part and the specimen and between the specimen and the light receiving part, for scattering at least one of light emitted from the irradiating part and the light from the specimen. The sensor device stably detects a predetermined type of information, such as a blood flow velocity, on the specimen.

Self-luminous sensor device

There is provided a biological information measuring apparatus, which permits to release constriction of capillary vessels a human body to provide stable measurement results of biological information and a proper S/N ratio. The biological information measuring apparatusincludes a beam-emitting type sensor deviceprovided on a mounting unitto optically measure biological information of a subject. The beam-emitting type sensor deviceis placed in a position so as to be in a non-contact state relative to the subjectwhen measuring the biological information.

Biological information measuring apparatus

The data to be recorded onto a recording medium is directly spread and then recorded onto the recording medium through a needle-shaped member, such as a probe. Upon reproducing the data, the data read from the recording medium is de-spread and reproduced.

Data recording / reproducing apparatus and method using needle-shaped member

In a two-dimensional probe array, an interval between the leading ends of probes adjacent to each other in an X direction is made shorter than that between the leading ends of probes adjacent to each other in a Y direction. Thus, the leading ends of the probes are arranged to form a lattice wherein many rectangles are arranged. Furthermore, the lowest resonance frequency of an actuator which moves a recording medium in the X direction is set higher than the lowest resonance frequency of an actuator which moves the recording medium in the Y direction. At the time of recording or reading information, the recording medium is reciprocated in the X direction at a frequency substantially equal to the lowest resonance frequency of the actuator.

Information memory apparatus using probe

A first thermal buffer layer and a second thermal buffer layer are arranged between a recording medium and an actuator structure. The heat conductivity of the first thermal buffer layer is set low and the heat conductivity of the second thermal buffer layer is set high. Most of the heat generated from a coil wiring of the actuator structure is blocked by the first thermal buffer layer, and heat leaked from the first thermal buffer layer is diffused by the second thermal buffer layer. Temperature distribution on the recording medium is made uniform, and thus, a configuration wherein the recording medium and the actuator structure are placed one over another can be provided, information reading accuracy or information recording stability can be improved and the sizes of an information storage device can be reduced.

A probe () is provided with: a substrate () having a surface facing a medium (); and a point electrode (), formed in the substrate, for performing at least one of detection operation of a state of a domain of the medium and change operation of the state of the domain of the medium, a tip portion, which is an edge portion on a side facing the medium, out of the point electrode being disposed in one point in a plane which is formed in a vicinity of an area portion in which the point electrode is formed by the surface.

Probe, recording apparatus, reproducing apparatus, and recording/reproducing apparatus

This signal detection method detects an output signal indicating data information contained at least in two sideband waves from an input signal having a carrier and at least two sideband waves accompanying the carrier. The method includes a cut off step for cutting off a sideband wave positioned at the high frequency side or the low frequency side as compared to the carrier from the at least two sideband waves and a square detection step for outputting an output signal by performing square detection of an input signal having one of the sideband waves which has been cut off.

Signal detecting method and apparatus and information reproducing apparatus and method

A position control area (A) is partly formed in the recording area () of a recording medium () and position information is recorded only in the position control area (A). To record data in the recording medium () by a head () having a plurality of cantilevers (A), (B), . . . , the position information is read by the cantilever (E) corresponding to the position control area (A) and, based on the position information, the positioning control or moving control of all the other cantilevers is performed.

Data recording and reproducing device, data recording and reproducing method, and recording medium

Position information is formed on a recording surface of a recording medium. The position information is constructed from first line segments, which are parallel to each other, and a second line segment, which crosses the first line segments. On the basis of a distance between (i) an intersection of one of the first line segment and a scan line and (ii) an intersection of another of the first line segments and the scan line, the intersection and an intersection of the second line segment and the scan line are measured or calculated. By this, a position of a head is recognized.

Recording medium having position recognition structure, and position recognition apparatus and method

Data recording/reproducing apparatus and method using needle-shaped member

A dielectric reproducing apparatus is provided with: a probe for applying an electric field to a dielectric material of a dielectric recording medium; a return electrode for returning the electric field applied from the probe; an inductor placed between the probe and the return electrode; an oscillator which oscillates at a resonance frequency determined from the inductor and a capacitance formed in the dielectric material just under the probe; an alternating current (AC) signal generation device for generating an AC signal which is applied to the probe; a frequency modulation (FM) demodulator for demodulating a FM modulation signal modulated by the capacitance corresponding to the polarization state owned by the dielectric material just under the probe; and a phase-shift keying (PSK) demodulator for reproducing data from the demodulated signal.

Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording/reproducing apparatus

A recording/reproducing head is provided with: a substrate which has a predetermined width and a predetermined thickness and which is long in one direction; a probe disposed on one end in the longitudinal direction of the substrate; a lead wire disposed on a surface of the substrate provided with the probe thereon, i.e. the lead wire disposed on a surface facing to the dielectric recording medium; and an electric conductor, i.e. a return electrode, disposed so as to surround the probe and the lead wire. The probe is covered with a conductive film as well as connected with the lead wire. Via the lead wire, a signal for recording is inputted from an external device or a signal for reproducing is led to an external device.

Recording/reproducing head

The dielectric recording medium is provided with a dielectric material, a conductive thin film, and a substrate. The conductive thin film and the substrate are bonded by a resin adhesive. The dielectric material is constructed of a ferroelectric single crystal having a uniform thickness, and its one surface is used for a recording and/or reproducing surface, on the order of mm on a side and about 5000 &#x212b; thick. The conductive thin film, about 1000 to 2000 &#x212b; thick, is placed on a surrounding portion and a back surface of the recording and/or reproducing surface of the dielectric material. The substrate is intended to preserve the thin dielectric material and maintain the planarity, and concave portions are formed on the adhesive surface. The concave portions absorb excessive resin adhesive when the dielectric material is bonded onto the substrate, which makes the adhesive surface uniform and flat.

Dielectric recording medium, and method of and apparatus for producing the same

An example dielectric information apparatus is provided with a plurality of electrodes for recording information in a small area of a dielectric substance and an earthed electrode. The electrodes are placed such that the dielectric substance is sandwiched therebetween. The dielectric information apparatus reads out the information recorded in the small area of a dielectric thin film by applying alternating current signals to the first electrodes. The polarization direction of the small area and the direction of an applied electric field decide the dielectric constant of the small area, and the oscillation frequency of an oscillator is determined by a capacitance Cs corresponding to the dielectric constant. An oscillation signal of the oscillator is demodulated at an FM demodulator, and the information is detected from the demodulated signal at a signal detector. When recording, record signals are applied to the first electrodes, and the polarization direction is set to correspond to the record signals.

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Saitama, Japan

Atsushi Onoe