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Optical coupling device and process for fabrication thereof
An optical coupling device has an optical wave-guide varied in difference in specific refractive index between a clad layer and a core layer, and the optical...
Flexible band tunable filter
A flexible band tunable filter design is disclosed which is capable of selecting any single channel or multiple of adjacent channels in a waveband of an optical...
System and method for processing packets
A searching system allowing high-speed data searching and operation is disclosed. A search table is provided which stores a copy of an entry that has been...
Orthogonal frequency division multiplex modem circuit
To provide an orthogonal frequency division multiplex modem circuit which can multiplex signals, whose bit rates and QoS are different from one another, and can...
Refresh operation type semiconductor memory device capable of smoothly
transferring special state to normal...
In a semiconductor memory device incorporating a memory core circuit requiring a refresh operation, a clock signal modifying circuit receives an external clock...
Magnetic random access memory
An improved magnetic random access memory (MRAM) has two sets of signal lines where each set is substantially perpendicular to the other, and memory cells...
Liquid crystal display device and its manufacturing method
In an active matrix type liquid crystal display device comprising a TFT having gate lines and data lines formed in a matrix manner and being connected to a...
Display control circuit and display device
A display control circuit (100) that may have a reduced power consumption has been disclosed. A display control (100) may include a plurality of output cells...
Band gap circuit
A band gap circuit, including a differential amplifier. In response to fluctuation of the voltage on the band gap circuit output terminal VOUT, a potential...
System semiconductor device and method of manufacturing the same
A system semiconductor device includes a system LSI cell portion and a global wiring layer. The system LSI cell portion has a plurality of functional blocks for...
Multifinger-type electrostatic discharge protection element
A multifinger ESD protection element has between an input wiring to which a surge current is input and a reference-potential wiring, 2n-number (where n is a...
Flame-retardant epoxy resin composition and semiconductor device made
using the same
An epoxy resin composition which can be used as a semiconductor encapsulating resin and in which the improvement of flame retardancy can be attained by suitably...
Method of fabricating semiconductor memory device
A silicon layer doped with an impurity for a floating gate, a protective layer, a silicon nitride layer of a laminated hard mask and a first NSG layer are formed...
Group III nitride based semiconductor substrate and process for
To provide a semiconductor substrate of a group III nitride with a little warp, this invention provides a process comprising such steps of: epitaxial-growing a...
Mobile phone provided with lighting, lighting control method and lighting
A mobile phone provided with lighting devices capable of capturing not only a still image but also a moving image in the dark. When a user sets the lighting of a...
Fold-type data processing apparatus having a hinge
A fold-type cellular phone has a top unit, a bottom unit and a hinge coupling together the top unit and the bottom unit while allowing the top unit to turn and...
Iterative concatenated code decoding circuit and encoding/decoding system
using the same
This invention provides an iterative concatenated code decoding circuit that allows a circuit size to be reduced and the error correction capability to be...
Single-chip microcomputer and boot region switching method thereof
With a plurality of memory blocks as a pair, a plurality of pairs of the memory blocks are provided and in a case where a pair of memory blocks is designated as...
Portable communication terminal apparatus
A portable communication terminal apparatus is disclosed which can announce termination of a call in various methods with a simple configuration and allows...
Mobile communication system
In a mobile communication system, a mobile terminal can designate a communication quality in requesting communication. A radio base station is connected to the...
Group communication system having group number specified by mobile unit to
permit intergroup calls
In a group communication system, a mobile station that is not currently under a group communication can participate in a group communication. A location...
High-speed all-band-cell search cellular phone
A cellular phone includes a RSSI measurement circuit for measuring power levels of received baseband signal at divided band portions of the whole band, a band...
Handoff method for a communication system of a train
In a mobile communication system, even when cells formed by fixed radio base stations are separated from each other, the switching operation between the cells is...
Power saving driving method of mobile telephone
In a mobile phone having a liquid crystal display unit, the entire liquid crystal display unit is displayed in a simple display mode at lest in a non-operating...
Key distribution system for protection of route-update notification in
This invention provides a key distribution system for protecting route-update notifications which overcomes the problem of scalability in the processing of...
System and method for preventing an illegal copy of contents
The method of preventing illegal copy of contents encrypts a header using a key generated from the previous sector, performs variable-length coding to the...
Multi-rate transmission apparatus
A multi-rate transmission apparatus wherein components operate with a single clock from the outside and, even if the modulation system and the coding rate are...
Communication apparatus and system comprising the same
A communication apparatus is provided which comprises: extraction means for extracting a virtual path identifier and a virtual channel identifier stored in a...
Packet processing unit
A packet receiving circuit splits the packet received from a transmission channel into a fixed length of cells and outputs the cells, a search key extracting...
Semiconductor memory device and method of controlling the same
A semiconductor memory device includes a plurality of memory blocks formed of a flash memory. The semiconductor memory device further includes a rewriting...
Semiconductor device with wiring layers forming a capacitor
A semiconductor device, in which four pieces of strip-shaped electrodes, whose longitudinal directions are the same, are formed in each layer of a plurality of...
Switch integrated casing and electronic equipment having the casing
A switch integrated type housing includes a housing body, a switch button sheet, a conductor and a cover sheet. The housing body is provided with a plurality of...
Manufacturing method of semiconductor device
A manufacturing method of a semiconductor device having a through-hole electrode is offered to improve reliability and yield of the semiconductor device. A via...
Projector with foreign matter detecting means
A projector has an image generating device for generating an image, and a housing, having the image generating device disposed therein and having an opening...
Data access method in the network system and the network system
According to this data access method to be used in a network system, while the tag information is read out from the tag memory, the data is speculatively read...
Access method and system with restricted number of address indentifiers in
domain areas for identifying server...
A website access system allowing easy operation and a small number of steps for accessing a desired one of a great number of websites is disclosed. A plurality...
Portable telephone system containing portable telephone terminal
A portable telephone system comprising first portable telephone terminal, second portable telephone terminal and a server for performing a management of position...
Data reader for reading biological data from constrained human body region
A data reader constrains a human body region of an examinee in a readout position upon inflation of balloon members. The data reader can safely and reliably...
Digital watermarking technique
A watermarking system allowing both sufficiently high quality of watermarked moving pictures and enhanced ease of watermark detection is disclosed. A watermark...
Method and communication system for data communication via a cable
First, two subsystems are connected with each other via a communication cable and then recognize physical connection between the two subsystems. Next, each one...
Lens actuator incorporated in optical information storage system for
promptly canceling fluctuation of radial...
A lens actuator keeps an objective lens focused on a track in an information recording layer of an optical disc against fluctuation unavoidable for the optical...
Power calibration method and apparatus for optical disc
A power calibration apparatus identifies a calibration area divided by an EFM frame unit on an optical disc and controls writing by a writing means. According to...
Electric double layer capacitor with improved activated carbon electrodes
An electric double layer capacitor comprises: a separator; a pair of electrodes separated by the separator, and the electrodes including activated carbon...
Apparatus and method of manufacturing liquid crystal display
An apparatus for manufacturing a liquid crystal display is provided with a first supporter for supporting a first substrate with the state of restraining the...
Reflection-type LCD device using the same
A reflector for a reflection-type LCD device is provided, which reflects efficiently incident light to the viewer's side and that suppresses the change of color...
IPS LCD having light shield film electrically connected to common
electrode and overlapped the portion of the...
An in-plane switching mode LCD device includes a shield common electrode having a protrusion protruding from side edges of a drain line, and a pair of light...
Method, system, and computer program for displaying screen information
A plurality of windows are contracted in scale and presented on the same display without interfering with a main display window. By dragging and dropping any...
Liquid crystal display device having a video correction signal generator
A liquid crystal display device includes a plurality of pixels arranged in a matrix, a drain line provided for each column of the plurality of pixels, a gate...
A/D converter, digital PLL circuit using the same, and information
recording apparatus using the same
An A/D converter includes a low-bit resolution A/D which converts an input signal into a digital value of 4 bits or less, and a low-pass digital filter which...
Portable telephone set with crime prevention function
When an emergency push-button is depressed, an alarm sound output part in a portable telephone set outputs a high volume level alarm sound, and a flashlight part...