Abstract: A base station includes a wakeup signal transmission part transmitting transmission signal information to a wireless terminal by wireless communication. The transmission signal information includes a wakeup signal starting a given function included by the wireless terminal. The wakeup signal transmission part transmits the transmission signal information including connection information in addition to the wakeup signal to the wireless terminal. The connection information is information for causing the wireless terminal of a destination of transmission of the wakeup signal to connect by wireless communication using the given function.

Abstract: A relay apparatus includes a first and second communication units. The first communication unit repeatedly attempts communication with portable communication terminals located in a communication range of the relay apparatus, and receives, from each of the portable communication terminals with which communication is established, terminal identification information for identifying each of the portable communication terminal. The second communication unit transmits moving object identification information to an information processing apparatus as in-range information along with the terminal identification information received by the first communication unit whenever the first communication unit attempts communication. The information processing apparatus includes an in-range information storage unit and an update unit. The in-range information storage unit stores the in-range information received from the second communication unit of the relay apparatus.

Abstract: An electronic apparatus that is protected from theft, and is provided with panels having excellent operability and viewability. The apparatus comprises a hosing, and a first panel and second panel provided on the front face side of the housing. An operation section is provided on one face of the first panel, a display section is provided on one face of the second panel, and a panel cover that can hide the front face of the housing is provided on the other face of the first panel. A slider is provided in the housing, and the slider is movable in forward and backward directions of the housing.

Abstract: A driver circuit that allows high-speed switching when the reference current (I) is small. The driver circuit includes a drive current generation circuit (220) for supplying to a first node (232) a drive current based on a binary data signal (DATA); a current mirror circuit (240) for conducting through a second node (234) a current (mI) having a magnitude of the current flowing through the first node (232), multiplied by a predetermined current mirror ratio (m); and a pre-bias circuit (260) for supplying a first pre-bias current (Ib1) to the first node (232) and supplying a second pre-bias current (Ib2) having a magnitude of the first pre-bias current (Ib1), multiplied by said current mirror ratio (m), to the second node (234).

Abstract: In a plasma display device in which a substrate contains a plurality of rows of sustain electrodes and scan electrodes, a terminal lead-out section of sustain electrodes is formed of a structure in which a common connection pattern is disposed at a location other than the effective display area of the panel, which provides all rows of sustain electrodes with a common connection. Furthermore, a plurality of connecting blocks, to which each of a plurality of flexible printed circuits (FPCs) is connected, are arranged at almost the same pitch to establish an electrical connection with the common connection pattern. A terminal lead-out section so structured can minimize differences in luminance on the panel caused by an uneven amount of current flow into the FPCs.

Abstract: The present invention reduces degradation in image quality caused by a write defect. This is achieved in the following manner.

Abstract: In a plasma display device in which a substrate contains a plurality of rows of sustain electrodes and scan electrodes, a terminal lead-out section of sustain electrodes is formed of a structure in which a common connection pattern is disposed at a location other than the effective display area of the panel, which provides all rows of sustain electrodes with a common connection. Furthermore, a plurality of connecting blocks, to which each of a plurality of flexible printed circuits (FPCs) is connected, are arranged at almost the same pitch to establish an electrical connection with the common connection pattern. A terminal lead-out section so structured can minimize differences in luminance on the panel caused by an uneven amount of current flow into the FPCs.

Abstract: To provide a PDP display device and a drive method which use a set-up pulse having a portion that drops in voltage at a rate of 2V/&mgr;sec or more, whereby the occurrence of discharge errors in a sustain period can be suppressed even when wall charges are not sufficiently erased in an erase period and excess wall charges remain on some or all electrodes in a set-up period. To this end, the drop portion of the set-up pulse applied to a scan electrode group is set after a pulse applied to a sustain electrode reaches a voltage which does not cause a discharge between the sustain and scan electrodes. As a result, the occurrence of discharge errors in the sustain period is suppressed, without prolonging the set-up period.

Abstract: A disc reproduction apparatus capable of stabilizing the position of the circumferential edge of a disc during the disc loading and preventing the disc from abutting on a turntable. In the disc reproduction apparatus of the type that a disc squeezed between a disc guide and a disc roller is loaded while the roller is rotated, a disc contact surface of the disc guide is slanted so that the disc is spaced from a turntable along a disc transport direction when the disc is loaded.

Abstract: A floating chassis support mechanism is provided which can thin a disc reproduction apparatus. In the floating chassis support mechanism for a disc reproduction apparatus for supporting a floating chassis with springs and dampers vertically from the opposite side of a loaded disc, the damper is disposed outside of a projection area of the disc, and an area of the floating chassis supported by the dampers is retracted towards the disc side more than a lower surface of the disc.

Abstract: A driver circuit that allows high-speed switching when the reference current (I) is small. The driver circuit includes a drive current generation circuit (220) for supplying to a first node (232) a drive current based on a binary data signal (DATA); a current mirror circuit (240) for conducting through a second node (234) a current (mI) having a magnitude of the current flowing through the first node (232), multiplied by a predetermined current mirror ratio (m); and a pre-bias circuit (260) for supplying a first pre-bias current (Ib1) to the first node (232) and supplying a second pre-bias current (Ib2) having a magnitude of the first pre-bias current (Ib1), multiplied by said current mirror ratio (m), to the second node (234).

Abstract: A control circuit capable of accommodating individual characteristics and aging of laser diodes is provided. A laser diode control apparatus for controlling the light-emission output of a laser diode in accordance with temperature data, includes a driver circuit (12), connected to the laser diode, for supplying a drive current to the laser diode; a memory (18) capable of pre-storing respective drive current values appropriate under a plurality of temperature conditions for individual laser diodes; and a central processing unit (14), coupled to the memory, for controlling, via the driver circuit, the laser diode in accordance with the temperature data and the appropriate drive current value from the memory.

Abstract: A floating chassis support mechanism is provided which can thin a disc reproduction apparatus. In the floating chassis support mechanism for a disc reproduction apparatus for supporting a floating chassis with springs and dampers vertically from the opposite side of a loaded disc, the damper is disposed outside of a projection area of the disc, and an area of the floating chassis supported by the dampers is retracted towards the disc side more than a lower surface of the disc.

Abstract: A disc clamp mechanism for a disc apparatus is provided. In the disc clamp mechanism, a disc is clamped or unclamped by moving a clamper holding chassis near to or remote from a turntable, the clamper holding chassis holding a clamper with a clamper holder, and a contact portion of the clamper holder with the clamper is deformed relative to the clamper holding chassis along a motion direction of the clamper holding chassis. A large space can be formed between the clamper and a turntable in a disc unclamp state to prevent the disc from becoming in contact with the clamper or turntable and being damaged while the disc is transported. A stroke of the clamper holding chassis necessary for reserving the space is made small to make a disc apparatus compact.

Abstract: A floating chassis support mechanism is provided which can thin a disc reproduction apparatus. In the floating chassis support mechanism for a disc reproduction apparatus for supporting a floating chassis with springs and dampers vertically from the opposite side of a loaded disc, the damper is disposed outside of a projection area of the disc, and an area of the floating chassis supported by the dampers is retracted towards the disc side more than a lower surface of the disc.

Abstract: To provide a PDP display device and a drive method which use a set-up pulse having a portion that drops in voltage at a rate of 2V/&mgr;sec or more, whereby the occurrence of discharge errors in a sustain period can be suppressed even when wall charges are not sufficiently erased in an erase period and excess wall charges remain on some or all electrodes in a set-up period. To this end, the drop portion of the set-up pulse applied to a scan electrode group is set after a pulse applied to a sustain electrode reaches a voltage which does not cause a discharge between the sustain and scan electrodes. As a result, the occurrence of discharge errors in the sustain period is suppressed, without prolonging the set-up period.

Abstract: A method of driving an AC plasma display panel for carrying out gray-scale display using a structure in which each field consists of a plurality of subfields, each of which includes an initialization period, a write period, and a sustain period. At least in one predetermined subfield out of the plurality of subfields, at least a part of a sustain operation in the sustain period and at least a part of an initialization operation in the initialization period in a subsequent subfield are carried out at the same time. The visibility of black is improved considerably and the contrast can be enhanced greatly.

Abstract: The present invention provides a multiprocessor ATM exchange which permits an ATM exchange to be configured with multiple processors to provide high capacity. The CLP state management section of the common signaling processor collects load state information from the CLP load monitoring section of call control processors to manage the load state thereof, and manages the normal or abnormal state of the call control processors. The signal floating function section, when receiving an initial address message, selects a call control processor suitable for processing said call based on the contents of the CLP state management section. On receiving the initial address message, the B-ISUP body of a selected call control processor generates an origination signal identifier from an incoming internal call reference number and the clp number of the call control processor and appends the signal identifier to the signal to send it.

Abstract: A charge detecting circuit includes a plurality of photodiodes, and a first multiplexer having a plurality of inputs connected to the photodiodes, respectively and operative to selectively connect one of its inputs to its output. Further, there are provided dummy capacitors of the same number as that of the photodiodes, each of the dummy capacitors having substantially the same capacitance as one corresponding photodiode, and a second multiplexer having a plurality of inputs connected to the dummy capacitors respectively, and operative to connect one of its inputs to its output. A differential amplifier is connected at its first input to the output of the first multiplexer and at its a second input to the output of the second multiplexer, so as to generate a photodetection signal.

Abstract: A constant voltage generator includes a resistance adjustable resistor having a series connection of a main resistor and sub-resistors, a circuit cooperating with the series connection to produce a constant voltage, a plural number of transistors having a collector-emitter path connected to corresponding one of the sub-resistors, and a plural number of semiconductor memories applying voltages to bases of the transistors, respectively, in accordance with stored information, whereby the resistance of the resistance adjustable resistor is adjusted by the stored information to control the output constant voltage.