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Individual band gain equalizer for optical amplifiers
A control apparatus comprises a light monitoring unit for dividing a signal wavelength band into at least a band in which output light power of an optical...
Holographic recording device
A holographic recorder can vary the optical distance between an object lens and a relay lens near the object lens. This arrangement allows defocus-multiplexing...
A hologram recorder is provided, in which coherent light from a light source is split into a signal beam and a reference beam, and the signal beam is modulated...
Transmit-receive FM-CW radar apparatus
A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the...
A level converter includes a cross-coupled section for holding data and a first switching section connected in series with the cross-coupled section and supplied...
DC-DC converter, power supply system, and power supply method
According to an embodiment, a DC-DC converter comprises: an error amplifier that receives a soft start signal and amplifies a difference between an output...
Electric rotary machine
In an electric rotary machine, a stator, a metallic supporting member configured to support the stator, and a rotor are provided, the rotor is relatively...
Wafer structure with a plurality of functional macro chips for
A semiconductor device that reduces the size and cost of functional macro chips used in a chip-on-chip configuration. Functional macro chips each include a macro...
Manufacture method for semiconductor device suitable for forming wirings
by damascene method and semiconductor...
An interlayer insulating film having a concave portion is formed on a semiconductor substrate. A tight adhesion film is formed on the inner surface of the...
Method for fabricating an attenuated phase shift photomask by separate
patterning of negative and positive...
A method for fabricating a photomask includes the steps of forming a phase shift layer, a light-shielding layer, and a negative resist layer in that order on a...
The present invention relates to an optical receptacle which prevents the occurrence of a large impact by collision of a plug body with an optical propagation...
Method of mounting a semiconductor chip
When a semiconductor chip is mounted using ultrasonic vibration, a method of mounting makes it possible to bond the semiconductor chip and bonding patterns with...
Method for transmitting reserved mail and information terminal device
When reserved mail fails to be transmitted, an error message is promptly displayed in a partial field of a display unit for a predetermined period of time. A...
Synchronous data transfer circuit, computer system and memory system
A circuit synchronizes parallel data of different timing for transfer. The synchronous data transfer circuit includes a plurality of first flip-flop circuits in...
Information-processing device with transaction processor for executing
subset of instruction set where if...
An information-processing device that executes a specific process more frequently than other processes among a variety of processes is provided. The...
Semiconductor storage device detecting change of memory content and
information processing device including...
A single information processing device capable of configuring an information system that maintains matching between information retained by a self device and...
Information processing device and data control method in information
An information processing device of a multiprocessor configuration that can increase significantly the processing capability of read requests. The information...
In a load balancer preserving a function of server consistency maintenance during communications even if a terminal is a mobile terminal, identifying information...
Application server, cache program, and application server system
An application server includes a cache memory that stores in a correlated form a retrieval condition and a retrieval result, an update condition setting unit...
Payment form discrimination method and apparatus
A method for identifying payment forms accurately identifies types of forms without adding special form identification data. A payment form discrimination method...
An auction system for use in auctions is provided. In the auction system, a recording medium is attached to an auction item. An auction participant reads...
Chinese input method, Chinese input device, and computer-readable medium
At a first step, initial groups are assigned to buttons of an input portion and they are displayed on the display. One initial group is specified in response to...
Accuracy verification program for model parameter computation using a
quantifier elimination method
A program causes a computer to perform a step 1 of reading a model from a storage apparatus; a step 2 of computing difference equations by replacing variables...
Optical node and optical add/drop multiplexer
The optical node connects N networks to each other (where N is an integer larger than one). Each of the N networks respectively includes a first transmission...
Optical reception apparatus and controlling method thereof
The optical reception apparatus of the invention branches into two an RZ-DQPSK optical signal input from an optical transmission path via an optical amplifier,...
Layout analysis program, layout analysis apparatus and layout analysis
A layout analysis program, a layout analysis apparatus, layout analysis method and a medium can highly accurately extract a text block from an image if the image...
Pay-per-connection scheme for wireless access to internet
A pay-per-connection system is coupled to a network service provider and to a client computer. The pay-per-connection system receives payment and a passcode from...
Telecommunication server apparatus
A storage unit manages a receiving order by storing a received call processing message. A retention unit retains key information, which is included in the call...
Distortion-compensation amplification apparatus and distortion
Distortion-compensation amplification apparatus that can obtain an appropriate error vector magnitude without increasing power consumption and can suppress the...
Communication device and communication method
A communication device for transmitting and receiving frames, which is capable of preventing an overflow of a buffer memory due to clock error even when the...
Transmitted packet replenishment system and transmitted packet
In a mobile IP network, a mobile node transmits data to a corresponding node. The transmitted data is stored in a transmitted data holding unit in the mobile...
Wireless base station and wireless communication method
A wireless base station that performs data communication using a plurality of sub carriers, and repeatedly generates frame patterns comprising one combination or...
Automatic discovery of logical network elements from existing links in a
A method and system for automated discovery of logical network elements in a communications network speeds up and reduces the cost of discovering network...
Path setting method and communication apparatus in communication network
performing communications through a...
A path setting method enabling utilization of request information from a user in a communication network having a path of a higher layer and a path of a lower...
Communication control system
The present invention relates to a communication control system, and provides specifically a peer-to-peer (P2P) communication control system making it possible...
To provide a device and a method enabling a user to judge which route a path used at the present traces without being aware of whether the now-in-use path is a...
Data relay apparatus and data relay method
A failure-recovery-information storing unit stores failure-recovery information in which a working path is associated with a backup path. A ...
Liquid cooling unit and heat exchanger therefor
A heat exchanger allows establishment of a flat space between first and second plates. The heat exchanger is inserted in a closed circulating loop for coolant....
Electronic device and fire protecting mechanism of the electronic device
An electronic device having an exhaust opening configured to exhaust air outside, the electronic device includes a door part configured to close the exhaust...
Library apparatus with cartridge type sensor
A library apparatus includes a cartridge type sensor and a robot. The cartridge type sensor includes a cartridge having the same shape as that of each recording...
Laser receiver and laser receiving system
In a laser receiver receiving a laser beam from a laser transmitter and a laser receiving system composed of a plurality of laser receivers, a plurality of photo...
Plasma display device and processing method thereof
There is provided a plasma display device including: a nonlinear conversion circuit which nonlinearly converts a first image signal to a second image signal and...
Display apparatus and display driving method for enhancing grayscale
display capable of low luminance portion...
A display apparatus driving method for a field time division type display apparatus displays grayscale by combining a plurality of subfields into which one field...
Load drive circuit and display device using the same
A load drive circuit, successfully suppressed in unnecessary electromagnetic wave generation through suppressing transition time in the drive voltage waveform...
Information terminal, method and apparatus for providing store
information, and computer product
A movement information determining unit determines a moving direction and a moving speed of a user using position information detected by a position information...
Information access system and active-type contactless information storage
A contactless information storage device for use in an information access system includes a receiver unit and a transmitter unit. The receiver unit is operable...
Surface acoustic wave device
A surface acoustic wave device includes a base portion that surrounds a surface acoustic wave element and is made of a resin, and a cap portion that is adhered...
Semiconductor device and method for controlling thereof
A semiconductor device includes a circuit section having an output impedance which changes in accordance with a switching signal for switching between drive...
Switching regulator with an adjustable output regulator circuit and a
constant output regulator circuit
The switching regulator has a first switching regulator circuit for outputting a variable power according to a pulse width modulation pulse to be supplied; a...
Plasma display apparatus
A PDP apparatus comprises, in a circuit part, a ramp output device which outputs a ramp wave to electrodes of a PDP. The ramp output device has a ramp generator...