Abstract: The object of the invention is to provide a biomagnetism measuring device using a high-performance cylindrical shielding apparatus provided with a flange-type plate having an opening formed on a circumferential face, an auxiliary cylinder in which one or plural cylindrical members are connected so that the central axis of the opening of the flange-type plate and each central axis of the cylindrical members are coincident, cylindrical shields having first, second and third angular ranges with the y-axis, a revolving door having a cutout in a portion parallel to the y-axis and acquired by integrating the cylindrical shields, shield bases for supporting the cylindrical shield to which the flange-type plate is connected in a circular-arc part at both ends, revolving parts for revolving the revolving door in a circumferential direction of the y-axis along a circumferential part of the cylindrical shield and opening or closing an opening in the circumferential direction, a cryostat arranged inside the opening of th

Abstract: According to one embodiment, an information processing apparatus includes a main body, an authentication unit which performs an authentication process, upon power-on of the main body, if authentication information is registered in the main body, the authentication process including a process to authenticate a user based on authentication information input by the user and the authentication information registered in the main body, and a forced-registration unit which performs a forced-registration process to request the user to register new authentication information and inhibit the main body from operating until the new authentication information is registered, upon power-on of the main body.

Abstract: According to one embodiment, an information processing apparatus includes a main body, a first authentication unit which performs a first authentication process to authenticate a user when the main body is powered on, a second authentication unit which performs a second authentication process to authenticate the user after the user is authenticated in the first authentication process, and an authentication skip control unit which skips the first authentication process until a given time period elapses since the user is last authenticated in the second authentication process.

Abstract: According to one embodiment, an information processing apparatus includes a storage device that stores biological information to be used for identifying the user, a sensor that reads out biological information, a non-volatile memory that stores identification information for identifying the storage device, a first authentication section that executes an authentication process of verifying the authenticity of the user, using the biological information read out by the sensor and the biological information stored in the storage device, a verification section that verifies the authenticity of the storage device, using the identification information possessed by the storage device and the identification information stored in the non-volatile memory, and a boot section that executes a boot process of an operating system after the authentication by the first authentication section of the authenticity of the user and the verification by the verification section of the authenticity of the storage device.

Abstract: The object of the invention is to provide a biomagnetism measuring device using a high-performance cylindrical shielding apparatus provided with a flange-type plate having an opening formed on a circumferential face, an auxiliary cylinder in which one or plural cylindrical members are connected so that the central axis of the opening of the flange-type plate and each central axis of the cylindrical members are coincident, cylindrical shields having first, second and third angular ranges with the y-axis, a revolving door having a cutout in a portion parallel to the y-axis and acquired by integrating the cylindrical shields, shield bases for supporting the cylindrical shield to which the flange-type plate is connected in a circular-arc part at both ends, revolving parts for revolving the revolving door in a circumferential direction of the y-axis along a circumferential part of the cylindrical shield and opening or closing an opening in the circumferential direction, a cryostat arranged inside the opening of th

Abstract: A biomagnetic measurement apparatus that readily enables the positional adjustment of a test object in biomagnetic measurement and a biomagnetic measurement method are provided. In biomagnetic measurement, in the case where the test object is a heart, for example, a permanent magnet is disposed on the body surface of the xiphoid process of a subject and the pectoral region is disposed under the bottom face of the cryogenic container. A processing unit stores the calibration curve of the permanent magnet and performs a process for estimating the positional relationship between the subject and the bottom face of the cryogenic container in accordance with the measurement result of the magnetic field strength of the permanent magnet. Also, the processing unit performs a process for estimating the distance between the body surface of the test object and the bottom face of the cryogenic container.

Abstract: Disclosed is a polyamide ester which comprises a plurality of specific amide ester recurring units including, in a specific ratio, recurring units containing a tetravalent benzene group and recurring units containing a tetravalent diphenyl ether group, and which is adapted to be converted to a polyimide in a coating form by heat-curing, wherein the polyimide coating exhibits a residual stress of 33 MPa or less as measured with respect to a 10 &mgr;m-thick polyimide coating formed on a silicon substrate. Also disclosed is a polyamide ester composition comprising a plurality of different polyamide esters, wherein the plurality of different polyamide esters collectively contain, in a specific ratio, the recurring units containing a tetravalent benzene group and the recurring units containing a tetravalent diphenyl ether group.

Abstract: A portable position detector is equipped with a pedometer, a geomagnetic sensor, and an acceleration sensor. With the pedometer, the moved distance of a walker is detected by a calculation of “the number of steps×the length of a step”. With the walking time per step detected with the acceleration sensor, the length of a step is corrected so that it corresponds to the walking state. The moved direction of the walker is detected with the geomagnetic sensor. With this, the moved position of the walker is accurately detected by self-contained navigation. Particularly, even in the case where the position detector is located in a forest or between buildings where a signal cannot be received from a global positioning system (GPS) due to high buildings, banks, and forests, the position detector with a portable size and weight applicable to a walker can know with a practically sufficient degree of accuracy the position of a person carrying this portable detector by self-contained navigation.

Abstract: The present invention provides photosensitive compositions which comprise polyimide precursors having a chemical structure selected from several specific chemical structures and/or specific amide bond density and are adjusted so that the film obtained by applying and drying the composition may exhibit a specific absorbance to light. The polyimide film obtained by heat-curing the above photosensitive composition exhibits excellent physical properties and water resistance, and has high adhesive strength to epoxy resins, inorganic materials and metals.

Abstract: A CPU determines if an expansion unit is docked or if there is external power supplied, in accordance with an SMI signal received. When a personal computer is docked to an expansion unit or when supply of external power is initiated, a process for switching the display mode to a high performance display mode for carrying out image display with the optimal display performance available from a display controller is started. When the personal computer is undocked from the expansion unit or when supply of external power is inhibited, a process for switching the display mode to a low power display mode set in the display controller is started. In those mode switching processes, power supply to a VRAM, the setting of a work area and a clock rate are changed.

Abstract: The present invention provides photosensitive compositions which comprise polyimide precursors having a chemical structure selected from several specific chemical structures and/or specific amide bond density and are adjusted so that the film obtained by applying and drying the composition may exhibit a specific absorbance to light. The polyimide film obtained by heat-curing the above photosensitive composition exhibits excellent physical properties and water resistance, and has high adhesive strength to epoxy resins, inorganic materials and metals.

Abstract: A portable position detector and a position management system that are capable of accurately detecting the direction of a walking body even when GPS signals cannot be received (or without reception) and thereby enhancing the accuracy of the dead reckoned position of the walking body.The portable position detector is equipped with a pedometer and a geomagnetic sensor. With the pedometer, the moved distance of a walker is detected by a calculation of "the number of steps.times.the length of a step". The moved direction is detected with the geomagnetic sensor. With this, the moved position of the walker is accurately detected by the self-contained navigation system.

Abstract: A PC card adapter and an I/O adapter as expansion devices respectively have discrimination circuits for outputting discrimination signals. A computer body has an expansion connector commonly used for the PC card adapter and the I/O card adapter, and an I/O controller. A selected one of the PC card adapter and the I/O adapter is connected to the expansion connector. The I/O controller has an input/output section commonly used for the PC card adapter and the I/O adapter and corresponding to the expansion connector, and a bus switching circuit for switching bus signal lines for input/output processing of interface signals input/output through the input/output section.

Abstract: In a computer system equipped with a hibernation type resume function including standby control functions, a power supply controller detects whether AC power or battery power is used as power for the system. When AC power is supplied, power is kept supplied to a memory even when a power switch is set off. When the power switch is set on later, an AC standby control function to set the system back to the operational state is executed based on the memory contents.

Abstract: Disclosed is a novel polyimide precursor having an aromatic polyamide ester structure containing amido groups and carboxylic acid ester groups composed of carboxylic groups and organic groups bonded thereto by ester linkage, wherein the ester groups comprise 20 to 80 mole %, based on the total molar amount of the ester groups, of groups each independently selected from the group consisting of a methyl group, an ethyl group, an n-propyl group, an isopropyl group and an allyl group and 20 to 80 mole %, based on the total molar amount of the ester groups, of organic groups each independently selected from organic groups having 4 to 11 carbon atoms and containing a terminal ethylenic double bond.

Abstract: A four wheel steer vehicle is provided with a suspension control system for controlling at least one suspension characteristic, one or more sensors for sensing a change in suspension characteristics by sensing a condition of the suspension control system, and a controlling element for varying a ratio of a rear wheel steer angle to a steering wheel angle in accordance with the suspension characteristic. Examples of the suspension characteristics are spring constants of front and rear suspensions, heights of the front and rear suspensions, damping forces of the front and rear suspensions, roll stiffnesses of the front and rear suspensions, and front wheel alignment angles such as camber and toe-in.

Abstract: A process for preparing a polyamide which comprises polycondensing a dicarboxylic acid and a diamine by using a combination of at least one phosphine and at least one disulfide as the condensing agent.

Abstract: A four wheel steer control system includes a four wheel steer system, a differential between right and left driving wheels, a slip limiting system for limiting a differential action of the differential with a slip limiting resistive force whose magnitude is varied in accordance with a vehicle speed or other variable, a sensor for sensing the magnitude of the slip limiting resistive force, and a controller for controlling a ratio of a rear wheel steer angle to a steering wheel angle in accordance with the magnitude of the slip limiting resistive force.

Abstract: A vehicle is equipped with a four wheel drive system having a transfer, a four wheel steer system for steering front wheels and rear wheels, a sensor for sensing a condition of a driving torque distribution between the front wheels and rear wheels, by sensing a condition of the four wheel drive system, and a controller for controlling a rear wheel steer angle in accordance with the condition of the driving torque distribution by commanding the four wheel steer system in such a manner as to maintain the desirable weak understeer characteristic irrespective of change in the driving torque distribution at least when a vehicle speed is greater than a predetermined value.

Abstract: A process for preparing polyamides which comprises polycondensing dicarboxylic acids having the following general formula and diamines by using carbodiimides as the condensing agent. ##STR1## wherein X is a group having a valence of (m+2), and C.sub.6-20 carbocyclic group, C.sub.3-20 heterocyclic group, C.sub.2-20 alkyl group, or C.sub.2-20 alkenyl group, the group having at least one carbon-carbon double bond in the position of conjugating to carboxylic acid radical or the group having an .alpha.,.beta.-unsaturated ketone structure;Y is --OR or --NRR' wherein R and R' each independently is C.sub.5-20 carbocyclic group, C.sub.1-20 heterocyclic group, C.sub.1-20 alkyl group or substituted group thereof having at least one substituent selected from the group consisting of --OW (wherein W is C.sub.1-12 alkyl group), C.sub.2-12 saturated acyl group, C.sub.2-12 saturated acyloxy group, C.sub.2-12 saturated acylamino group, C.sub.2-12 dialkylamino group, --SW (wherein W is the same as defined above), C.sub.