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A PLL circuit comprises a phase comparator for comparing phases between a reference signal and an internal signal and outputting a phase difference signal...
Filter apparatus including slave gm-C filter with frequency
characteristics automatically tuned by master circuit
In a filter apparatus includes a master circuit receiving a reference frequency to generate a control voltage, and a slave gm-C filter for receiving an input...
Noise elimination circuit
A noise elimination circuit sets a certain time period for eliminating noise occurring immediately after a change in the logic level of an input signal by a...
Semiconductor device and method of manufacturing a semiconductor device
A semiconductor device 200 comprises a SiCN film 202 formed on a semiconductor substrate (not shown), a first SiOC film 204 formed thereon, a SiCN film 208...
Thermal infrared detector having a small thermal time constant and method
of producing the same
In an area of a diaphragm 5 as an infrared photosensitive portion of a thermal infrared detector, a fourth dielectric protective film 8c is etched and reduced in...
Printed wiring board
The printed wiring board includes a substrate, an electrically conductive pattern formed on the substrate, and an electrical insulator covering the substrate and...
Positive electrode active material for secondary cell, positive electrode
for secondary cell using same, and...
A cathode active material for a secondary battery including a lithium-manganese composite oxide having a spinel structure and represented by the following...
Backlight unit uniformly illuminating object regardless of lapse of time
and liquid crystal display panel...
A liquid crystal display panel device has a backlight unit for illuminating the reverse surface of a liquid crystal display panel, and the backlight unit...
Projection display device
In a projection display device that is provided with a relay lens for converting flux that is emitted from a light source to a parallel flux for illuminating an...
Method and system for collecting market research data from consumers
For collecting market research data and promoting business activities in a selected geographic area, user information containing users' profile and preference...
Quantum cryptography communication system and quantum cryptography key
distributing method used in the same
A quantum cryptography communication system includes a first data communication unit; a second data communication unit connected with the first data...
Magnetic cartridge tape storage
Semiconductor integrated circuit, method of designing semiconductor
integrated circuit, and device for...
Placement is performed by using a library created by enlarging cell frames of at least one type of cells out of a plurality of types of standard cells...
Error correction code decoding device
In an error correction code decoding apparatus, utilized in the decoding of turbo codes, plural number of backward processing modules 100, 110 and 120 are...
Fault tolerant computer and transaction synchronization control method
A fault tolerant computer includes a plurality of CPU modules that process the same instruction string while maintaining clock synchronization; and a plurality...
Message reception device, message reception method, and program for
receiving message is recorded
Messages with a valid range are selected by a message filter unit among the messages received through a network by a message reception unit, and the selected...
Content delivery system, content delivery method, and content reproducing
A content delivery system, a method thereof, and a content reproducing device are provided. The content reproducing device comprises a content separator, an...
Fingerprint input apparatus
A fingerprint input apparatus includes scattered light and a two-dimensional image sensor. The scattered light is generated inside a finger having a fingerprint...
Face recognition method, recording medium thereof and face recognition
An enquiry face image shot by a video camera and the like is collated with face image data converted into database. The data converted into the database are...
Wireless communication system and method of conducting wireless
A wireless communication system includes a plurality of base stations, a mobile wireless communication device which makes wireless communication with the base...
Magnetic memory, and its operating method
A technology for eliminating the defects in a tunnel insulation film of magnetic tunnel junction and for suppressing generation of a defective bit in an MRAM...
Semiconductor device containing charge pump type step-up circuit featuring
bipolar transistor for carrying out...
A semiconductor device includes a first conductivity type semiconductor substrate, and a charge pump type step-up circuit formed in the semiconductor substrate....
Electrical double layer capacitor
An electrical double layer capacitor is provided which is capable of ensuring its reliability and providing increased energy density per unit volume of a...
Projection type display apparatus
A projection type display apparatus, wherein a common case can be used for housing an illumination optical system even when a shape of an image display element...
Color electronic paper display device
A color electronic paper display device is provided which is easy to fabricate and can provide bright display. The color electronic paper display device includes...
Facsimile apparatus and account-selling system using the same
An account-settling system comprises a buyer-side facsimile apparatus and a seller-side facsimile apparatus. These facsimile apparatuses are connected to the...
Liquid crystal display panel having reflection electrodes improved in
smooth surface morphology and process for...
A liquid crystal display panel of the type having reflection electrodes tends to have an image-forming plane undesirably yellowed due to the wavelength...
Portable electronic device and portable cellular phone
A portable electronic device is provided which an operator (photographer) has not an abnormal but favorable feeling from a design (aesthetic) viewpoint and which...
Driving circuit for display device
A driving circuit for driving a capacitive load promptly to a target voltage is to have a broad dynamic range and achieve a high accuracy output and saving in...
Antenna device and radio communication apparatus using the antenna device
An electrical signal is fed from one terminal of an antenna element, and the other terminal thereof is terminated by a variable reactance circuit. A reactance...
Security verification method and device
A security verification method for verifying whether improper settings that indicate composite errors of security settings exist in an object system, which is an...
A synthesizer that has a phase detector 8 and a charge pump circuit 9 for injecting an electric charge, or pulling it out that corresponded to a frequency...
Red fluorescent material, white light emitting diode using red fluorescent
material, and lighting system using...
The present invention achieves improvement of the color reproducibility, color rendering properties and light emitting efficiency of a white light emitting...
Soldering method and solder joint member
In a soldering method for soldering an electronic component including a palladium or palladium alloy layer formed on a surface of the electronic component and...
Data distribution system
A game database storing a game program as pay data, a distribution server, and an account server are provided within a service provider side device. The account...
Foldable portable telephone having a display portion selectively put into
a lengthwise state or an oblong state...
In a foldable portable telephone set including a lower unit (20) having a console portion (12), an upper unit (30) having a display portion (11), and a hinge...
Method for selecting broadcasting tower, program for selecting
broadcasting tower, storage medium storing same...
The broadcasting tower selecting method for selecting one broadcasting tower out of a plurality of broadcasting towers each being able to transmit together...
Transmitting electric power control method in the CDMA system
An electric power control method is provided. In the method, a range having a maximum value, which is an output ratio of initial target signal to disturbance...
Apparatus and method for monitoring optical signal
This invention provides a technique for realizing low-cost optical signal waveform monitoring with improved realtimeness to be applied to signal quality...
Fingerprint identification method and system, and biometrics
A highly accurate identification system is built by using an identification module, which has predetermined values of FAR and FRR. A plurality of (m) biometrics...
STM mapping circuit and method
An STM mapping circuit is disclosed having a configuration that includes: a packet length detection circuit for generating byte effectiveness information that...
Node device for ring system, and system and method for constructing
multiple spanning trees by using the same...
An object of the present invention is to provide a multiple spanning tree system in which a plurality of spanning trees are constructed in a ring system to...
Flexible crossbar switching fabric
A crossbar switching fabric comprising a plurality of crossbar input ports and a plurality of crossbar output ports. The traffic from at least one source is...
Recording head, recording head manufacturing method, combined head and
magnetic recording/reproduction apparatus
A recording head is a magnetic head in which ends on one side of opposed first and second magnetic cores form a recording gap, said other ends form a magnetic...
Information displaying system
An information displaying system, in which digital information data such as news and a commercial message are displayed with screen data on a display without...
Image display method in transmissive-type liquid crystal display device
and transmissive-type liquid crystal...
A method is provided for displaying an image in a liquid crystal display which enables a scale of a power supply circuit for supplying power to a backlight to be...
Signal-adjusted LCD control unit
An LCD control unit includes a software adjustment block for adjusting the .gamma.-correction voltages by a software. The LCD control unit includes a voltage...
Current drive circuit and image display device
The present invention provide a display panel including a current-driven displaying elements arrayed therein, and a display device, which suppress the...
Reflection loss suppression circuit
An object is to suppress a reflection loss in any desired frequency band outside a required band, without affecting circuit characteristics in the required...
CMOS reference voltage circuit
A CMOS reference voltage circuit, preferably formed on a semiconductor integrated circuit, and outputting a reference voltage having a temperature-independent...