Abstract: In one embodiment, a liquid crystal display device includes a first substrate and second substrate opposing the first substrate. A seal material is formed on the first substrate to attach the first substrate and second substrate with a predetermined cell gap therebetween. The seal material is formed in an approximately rectangular closed loop shape having four straight line portions. The straight line portion includes an expanded portion in which the width of one of the straight line portions is locally expanded. A barrier is arranged between the location where the expanded portion is formed and one end of the first substrate.

Abstract: One aspect of the embodiments utilizes a power adapter includes a main USB connector, an assist USB connector, a drive USB connector, and a power supply current combining circuit that combines a current from a power supply terminal of the main USB connector and a current from a power supply terminal of the assist USB connector so as to output a combined current to a power supply terminal of the drive USB connector. The adapter mutually inputs/outputs signals between the signal terminals of the main USB connector and the signal terminals of the drive USB connector.

Abstract: One aspect of the embodiments utilizes a storage apparatus includes a storage device through which data is input from and output to an external apparatus having an external interface. The storage apparatus includes a power supply control switch provided on a power supply line through which power is supplied to the storage device. A conversion control circuit converts signals mutually between a device interface of the storage device and the external interface, and performs control to turn off the power supply control switch so that supply of power to the storage device is stopped upon the storage device entering an idle state, the idle state being a state where input to and output from the external apparatus are absent.

Abstract: A power supply control circuit has an input unit which receives a supply of a power supply from one or a plurality of power supply source apparatuses, and has plural input lines including a first input line and a second input line at least, an output unit which outputs the supplied power supply to a power supply destination apparatus, a current control unit which is arranged between the first input line and the output unit, and includes a first diode D1 and a field effect transistor FET which are connected in parallel, a connection detection unit which is arranged between the second input line and the current control unit, detects a state of supplying the power supply to the second input line, and controls the field effect transistor FET and a second diode D2 arranged between the second input line and the output unit.

Abstract: The interface changeover switch, serving as an external interface, selects any of the USB interface and the E-SATA interface. The conversion LSI reads in a changeover signal of the interface changeover switch from the GP-IO port upon turning power on, and executes signal conversion between the serial ATA interface of the hard disk drive and the USB interface, or signal conversion between the serial ATA interface of the storage device and the E-SATA interface in response to the read-in changeover signal.

Abstract: A composite storage apparatus has a memory card and a storage device. An interface conversion circuit of a second interface and a first interface, a connector of the first interface, and memory card device are disposed on a card board. Thereby, a composite storage apparatus which has the memory card and a storage device with a single interface with a plurality of interfaces can be easily implemented.

Abstract: The main cable and the drive cable each incorporates a positive power line, a negative power line, a positive signal line and a negative signal line. The main cable is connected to the USB ort of the host apparatus with the connector, and the drive cable is connected to the USB ort of the USB drive device with the connector. In the connector module, the diode is inserted into the positive power line of the auxiliary cable, and the cathode side thereof is connected to the positive power line side of the mutually connected main cable and drive cable.

Abstract: The subsystem has, in addition to a USB interface, other interfaces such as a serial ATA. The power control circuit unit has a first changeover circuit which supplies bus power to an internal power terminal by being turned on in the input state of USB bus power from the USB connector, and breaks connection with the internal power terminal by being turned off in the non-input state of the USB bus power, a diode which is insertion-connected to the positive side of the power line from the power input connector, and a second changeover circuit which is connected in parallel to the diode, supplies power of the power input connector to the internal power terminal via the diode by being turned off in the input state of USB bus power, and supplies power from the power input connector, by bypassing the diode, directly to the internal power terminal by being turned on in the non-input state of USB bus power.

Abstract: A power supply control device is provided with a first power supply input terminal to which a power supply is provided and a second power supply input terminal to which a power supply is provided. A power supply input detection unit detects an instance when the input of the second power supply input terminal is above a predetermined value and then a switch unit cuts off power supplied from the first power supply input terminal and activates power supply from the second power supply input terminal when the input from the second power supply input terminal is above a predetermined value according to the power supply input detection unit. A power supply processor processes a power supply supplied by way of the first or second power supply input terminal.

Abstract: In an information record/replay apparatus for writing information to, and reading information from, a disk medium while communicating with a host apparatus by way of an interface having a first transfer mode and a second transfer mode with a lower transfer speed than the first transfer mode, an operation for writing to the disk medium is controlled by assigning a higher rotation speed or shorter seek time than that of the first transfer mode when the second transfer mode is specified.

Abstract: A composite storage apparatus has a memory card and a storage device. An interface conversion circuit of a second interface and a first interface, a connector of the first interface, and memory card device are disposed on a card board. Thereby, a composite storage apparatus which has the memory card and a storage device with a single interface with a plurality of interfaces can be easily implemented.

Abstract: A calibration processing unit is provided, a reproducing operation of an optical storage medium by a reproducing unit is executed while changing a reproducing magnetic field and a reproducing laser power, a reproducible state is measured, and a set of best values of the reproducing magnetic field and the reproducing laser power which are used in the reproducing unit are determined on the basis of the measurement result. The calibration processing unit increases the reproducing magnetic field in a state where the reproducing laser power is fixed. When the reproducible state is not obtained, the measurement of the reproducible state due to the increase in reproducing magnetic field is repeated while increasing the reproducing laser power step by step. The reproducible state can be also measured while alternately increasing the reproducing laser power and the reproducing magnetic field.

Abstract: There is provided an optical storage device that can position a lens carriage and objective lens even when position sensors for the lens carriage and objective lens are excluded in an effort to make an optical disk unit thinner. When a seek of the carriage relative to an optical disk is started, the carriage is accelerated smoothly, decelerated smoothly, and thus positioned on a target track. The vibration of a lens actuator on the carriage occurring during seek can be minimized, and the lens actuator is locked substantially in the center of the carriage. During a seek operation of the carriage, a false lens signal equivalent to a lens signal used to lock the lens actuator in the center of the carriage is produced using the envelope of a tracking error signal obtained from reflected light of the light beam emanating from the optical disk. With the false lens signal, the lens actuator is locked in the center of the carriage.

Abstract: This invention relates to bicyclic amino group-substituted pyridonecarboxylic acid derivatives of the general formulaA--Priesters thereof and salts thereof, wherein: Pri is a pyridonecarboxylic acid residue, and A is a bicyclic amino group represented by the following formula and joined to the 7-position of the pyridonecarboxylic acid or a position equivalent to the 7-position thereof. ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different and each represents a hydrogen atom, a lower alkyl group or an amino-protecting group; R.sub.3 and R.sub.4 may be the same or different and each represents a hydrogen atom, a halogen atom, a cyano group, a hydroxyl group, an oxo group, a lower alkoxy group or a lower alkyl group; and n is an integer of 0 or 1.The above-described pyridonecarboxylic acid derivatives, esters thereof and salts thereof are useful as antibacterial agents.

Abstract: There is provided an optical storage device that can position a lens carriage and objective lens even when position sensors for the lens carriage and objective lens are excluded in an effort to make an optical disk unit thinner. In an optical storage device according to the first aspect of the present invention, when a seek of the carriage relative to an optical disk is started, the carriage is accelerated smoothly, decelerated smoothly, and thus positioned on a target track. The vibration of a lens actuator on the carriage occurring during seek can be minimized, and the lens actuator is locked substantially in the center of the carriage. According to the second aspect, during a seek operation of the carriage, a false lens signal equivalent to a lens signal used to lock the lens actuator in the center of the carriage is produced using the envelope of a tracking error signal obtained from reflected light of the light beam emanating from the optical disk.

Abstract: A focus control method controls a focus servo system which controls a focus of a light irradiated on an optical disk in an optical disk unit which has a plurality of operation modes. The focus control method includes the steps of (a) reading focus offset information from a memory which prestores focus offset information depending on the operation modes of the optical disk unit, and (b) controlling the focus with respect to the optical disk by supplying the focus offset information read in the step (a) to the focus servo system when the operation mode of the optical disk unit is switched from one mode to another.

Abstract: A positioning control system for performing recording/reproducing operations by irradiating an optical beam to a predetermined position on an optical recording medium, includes a photo-detector and a servo-error signal generating circuit which can generate at least one servo-error signal in accordance with a difference between the detection currents.

Abstract: A positioning control system for performing recording/reproducing operations by irradiating an optical beam to a predetermined position on an optical recording medium, e.g., magneto-optical disk. The control system includes a photo-detector constituted by at least two-divisional units, and a servo-error signal generating circuit which can generate at least one servo-error signal in accordance with a difference between the detection currents. Preferably, the servo-error signal generating circuit includes at least one division circuit that has two pairs of transistors, two emitters in each pair of transistors being connected together into a common emitter, bias voltages of a direct current type being applied to the respective bases of transistors on one side, and the respective collectors of the transistors on one side being connected to a common connecting portion via resistors.

Abstract: A positioning control system for performing recording/reproducing operations by irradiating an optical beam on a predetermined position on an optically recording medium includes a photo-detector constituted by at least two-divisional units and a servo-error signal generating circuit which can generate at least one servo-error signal in accordance with a difference between detection currents measured at the collectors of selected transistors in two pairs of transistors.

Abstract: A positioning control system for performing recording/reproducing operations by irradiating an optical beam to predertermined position on an optically recording medium, e.g., magneto-optical disk, includes a photo-detector constituted by at least two-divisional units; and a servo-error signal generating circuit which can generate at least one servo-error signal in accordance with a difference between the detection currents.