Abstract: A light-transmissive antenna includes: a transparent base made of a transparent insulating material; and an antenna pattern formed on the transparent base. The antenna pattern is made of a transparent electrically conductive film that is a film-like member having a predetermined transmittance and a predetermined electrical conductivity. The light-transmissive antenna includes a plurality of highly electrically conductive patterns arranged on the antenna pattern, each of the highly electrically conductive patterns being made of an electrically conducive member having a higher electrical conductivity than the transparent electrically conductive film and formed in a linear shape. Each of the plurality of highly electrically conductive patterns has a predetermined width set equal to or smaller than a value assumed as a resolution of human eyes.

Abstract: An antenna device includes a ground part, a patch part disposed parallel to the ground part to oppose the ground part, a short-circuit part electrically connecting the patch part and the ground part, a patch area expansion part and a ground area expansion part. The patch area expansion part is provided on a patch-side opposing surface that is a surface of the patch part opposing the ground part to expand an effective surface area that is an apparent area of the patch-side opposing surface with respect to the ground part. The ground area expansion part is provided in a region opposing the patch area expansion part on a ground-side opposing surface that is a surface of the ground part opposing the patch part to expand an effective surface area of the ground-side opposing surface with respect to the patch part.

Abstract: A light-transmissive antenna includes: a transparent base made of a transparent insulating material; and an antenna pattern formed on the transparent base. The antenna pattern is made of a transparent electrically conductive film that is a film-like member having a predetermined transmittance and a predetermined electrical conductivity. The light-transmissive antenna includes a plurality of highly electrically conductive patterns arranged on the antenna pattern, each of the highly electrically conductive patterns being made of an electrically conducive member having a higher electrical conductivity than the transparent electrically conductive film and formed in a linear shape. Each of the plurality of highly electrically conductive patterns has a predetermined width set equal to or smaller than a value assumed as a resolution of human eyes.

Abstract: An antenna device includes a ground part, a patch part disposed parallel to the ground part to oppose the ground part, a short-circuit part electrically connecting the patch part and the ground part, a patch area expansion part and a ground area expansion part. The patch area expansion part is provided on a patch-side opposing surface that is a surface of the patch part opposing the ground part to expand an effective surface area that is an apparent area of the patch-side opposing surface with respect to the ground part. The ground area expansion part is provided in a region opposing the patch area expansion part on a ground-side opposing surface that is a surface of the ground part opposing the patch part to expand an effective surface area of the ground-side opposing surface with respect to the patch part.

Abstract: There is provided a disc changer for a disc drive unit, including: a disc accommodation section capable of accommodating plural discs: a disc pushing mechanism that pushes a disc from a specific rack of the disc accommodation section to a disc discharge position within the disc drive unit; and a disc discharge mechanism that securely sends the disc at the disc discharge position, to a disc insertion/discharge opening of the disc drive unit. The disc exchanger further includes a disc guiding device that has: an upper and a lower guiding members, which are provided in an area within the disc drive unit adjacent to the disc insertion/discharge opening, and guide the disc pushed by the pushing mechanism, to the disc insertion/discharge opening; and a drive mechanism of the guiding members, that opens the lower guiding member from the upper guiding member, when the pushing mechanism pushes the disc.

Abstract: The invention aims to reduce the size of a disk clamp mechanism to be built into a disk player. The clamp mechanism comprises: a disk clamp portion formed integrally with a turntable; a clamper; and a clamper holder for holding the clamper via a clamper mounting shaft adapted to hold the clamper in rotatable fashion, wherein a flange portion provided at an end of the clamper mounting shaft is placed within a space formed inside the clamper. The clamper comprises a peripheral portion and a chamber portion in which the space is formed, and the disk clamp portion has a recessed groove portion engageable with the chamber portion, the structure being such that, when the disk is clamped, the end portion of the chamber portion is accommodated into the disk clamp portion, thus achieving a size reduction by reducing the height in a direction perpendicular to the disk.

Abstract: An air cleaning method for a storage medium drive begins by inserting, into an air inflow port provided in a housing of the drive, an air inflow nozzle which is internally provided with an ionizing electrode to generate corona discharge, charging dust particles within the apparatus by applying a voltage to the ionizing electrode. An air exhaust nozzle is inserted in an air exhaust port provided in the housing of the drive. The exhaust nozzle is internally provided with a dust collecting electrode to collect the ionized dust particles. The dust collecting electrode attracts the dust particles to the air exhaust nozzle, and the dust particles are exhausted to the external side of the drive with the air exhaust nozzle. The air inflow and air exhaust ports are then sealed.

Abstract: There is provided a disc changer for a disc drive unit, including: a disc accommodation section capable of accommodating plural discs: a disc pushing mechanism that pushes a disc from a specific rack of the disc accommodation section to a disc discharge position within the disc drive unit; and a disc discharge mechanism that securely sends the disc at the disc discharge position, to a disc insertion/discharge opening of the disc drive unit. The disc exchanger further includes a disc guiding device that has: an upper and a lower guiding members, which are provided in an area within the disc drive unit adjacent to the disc insertion/discharge opening, and guide the disc pushed by the pushing mechanism, to the disc insertion/discharge opening; and a drive mechanism of the guiding members, that opens the lower guiding member from the upper guiding member, when the pushing mechanism pushes the disc.

Abstract: The invention aims to reduce the size of a disk clamp mechanism to be built into a disk player. The clamp mechanism comprises: a disk clamp portion formed integrally with a turntable; a clamper; and a damper holder for holding the damper via a damper mounting shaft adapted to hold the damper in rotatable fashion, wherein a flange portion provided at an end of the damper mounting shaft is placed within a space formed inside the clamper. The damper comprises a peripheral portion and a chamber portion in which the space is formed, and the disk clamp portion has a recessed groove portion engageable with the chamber portion, the structure being such that, when the disk is clamped, the end portion of the chamber portion is accommodated into the disk clamp portion, thus achieving a size reduction by reducing the height in a direction perpendicular to the disk.

Abstract: Apparatus for interconnecting logic boards is provided with a backplane, a plurality of logic boards connected to the backplane, and a plurality of interconnecting boards, connected to the backplane, for interconnecting the plurality of logic boards. In the apparatus, the plurality of logic boards are connected to the backplane with the logic boards in vertical position at right angles with the interconnecting boards and a specified distance away from the interconnecting boards.

Abstract: Apparatus for interconnecting logic boards is provided with a backplane, a plurality of logic boards connected to the backplane, and a plurality of interconnecting boards, connected to the backplane, for interconnecting the plurality of logic boards. In the apparatus, the plurality of logic boards are connected to the backplane with the logic boards in vertical position at right angles with the interconnecting boards and a specified distance away from the interconnecting boards.

Abstract: A semiconductor integrated circuit system having a function of automatically adjusting an output resistance value with reference to a temperature of an LSI which is operating. When a count value obtained from a counter by counting the output of a timer becomes equal to a predetermined value, a temperature sensor measures temperatures of LSIs. If a temperature fluctuation measured from a previous measured value is greater than a predetermined width, then a control apparatus issues an output resistance value adjustment request signal to output resistance adjustment units of the LSIs.

Abstract: In an electromagnetic flowmeter, a magnetic field is generated in a direction perpendicular to measured fluid passing through a measurement tube, and electromotive force generated according to a flow rate of the fluid intersecting the magnetic field is detected by a pair of electrodes opposed on a diameter of the measurement tube. The electromagnetic flowmeter includes one pair of electrodes diametrically opposed on the measurement tube, first magnetic circuit forming members mounted on outer peripheries of both ends of the measurement tube, second magnetic circuit forming members for mutually connecting the first magnetic circuit forming members and pressing and supporting coils on the measurement tube, and a case made of non-magnetic material, for covering the measurement tube, the electrodes and the coils.

Abstract: In a simultaneous bidirectional transmission circuit for conducting simultaneous two-way communication between LSIs via a transmission line, an input/output circuit connected to the transmission line is included in an LSI. The input/output circuit has a driver and a receiver. The driver sends out an output signal depending on a logical signal within the LSI to the transmission line. The receiver receives a mixed signal having a mixture of a received signal and the output signal via the transmission line. The signal to be received by the receiver in an LSI has been sent out to the transmission line by the other party i.e., another LSI in communication therewith. The receiver receives the logical signal output as well. The receives derives a difference between the mixed signal and the logical signal output, thereby removing the component of the logical signal from the mixed signal, and outputs the received signal.

Abstract: A distributed shared memory management system for a distributed shared memory computer system having a plurality of computers interconnected by a network, each computer having an independent address space and logically sharing data physically distributed to a storage of each computer. Each computer running a program for reading/changing the shared data includes a coherence control designation command for designating to enter a mutual exclusion state in which two or more computers cannot change the logically single shared data, a coherence control release command for designating a release of the mutual exclusion state, and a coherence control execution command for reflecting the contents of the shared data changed between the coherence control designation command and the coherence control release command, upon the logically single shared data in another computer.

Abstract: A method of manufacturing an electromagnetic flowmeter includes the steps of inserting and filling electrode members into a pair of insertion holes formed to oppose each other from outside to inside through the circumferential wall of a measuring pipe made of a sintered ceramic material, and heating and solidifying the electrode members to form electrodes.

Abstract: An electrode structure for an electromagnetic flowmeter includes a ceramic measuring pipe, an insertion electrode, a press member, and inner and outer gaskets. The electrode has a large-diameter liquid contact end exposed inside the ceramic measuring pipe and an electrode shaft inserted into the electrode insertion hole from the inside of the ceramic measuring pipe. The press member is fitted on the electrode shaft extending outside the ceramic measuring pipe and opposes the electrode liquid contact end through the wall of the ceramic measuring pipe. The press member has a groove adjacent to the insertion electrode on a side which is in contact with the outer surface of the ceramic measuring pipe. The groove is defined by a tapered surface whose diameter is increased toward the ceramic measuring pipe. The inner gasket contacts a surface of the electrode liquid contact end which is in contact with the inner wall surface of the ceramic measuring pipe.

Abstract: In an electromagnetic flowmeter using a ceramic pipe as a measuring pipe, an electrode inserted in the ceramic pipe includes a ceramic core rod and a conductive portion of a refractory metal. The conductive portion covers a fluid contact end face of the core rod and extends along the longitudinal direction of the core rod. The other end of the conductive portion faces an outer surface of the ceramic pipe, and is opposite the fluid contact end face.