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High speed switching router using APS and method for switching the same
In a method of switching a current use communication line between first and second communication lines provided between first and second units, link data is...
Semiconductor memory device capable of carrying out stable operation
A semiconductor memory device includes a word drive line, and a word line connected with memory cells. A first drive circuit drives the word drive line to a...
Mobile wireless terminal
There is provided a mobile wireless terminal in which characteristics such as improved antenna directivity of a built-in antenna and gains thereof are improved...
Portable terminal device and control method of the same
A portable telephone has a key operation unit in which a plurality of small keys is arranged close to each other. A user sometimes depresses a plurality of keys...
Slew rate calibrating circuit and slew rate calibrating method
A slew rate calibrating circuit and a slew rate calibrating method are provided which are capable of adjusting, with high accuracy, a slew rate of a signal to be...
Pulse width modulation signal generating apparatus having two dead times
In an apparatus for generating complementary first and second pulse width modulation signals, a signal generating circuit generates a first signal for causing...
Semiconductor device, semiconductor circuit and method for producing
The present invention is provided with a transmission line element having a ground wiring and a power supply wiring formed interposing an insulating film, on the...
Semiconductor integrated circuit device
The bottom side of an N type silicon substrate is connected to a power supply terminal, a second P type epitaxial layer is formed on all sides of the N type...
Array-type computer processor
An array-type computer processor stops, with a plurality of computer programs held, a state control unit and a data-path unit, upon input of event data for task...
Data transfer apparatus and data transfer method
A forwarding table 7 where a next transmission queue is registered is sequentially transferred within a queue chain 30 as a group of queues 131. If a priority of...
Cellular telephone set capable of self-producing display animation and
method of producing display animation...
After consecutive photographing by consecutive photographing function of a camera at step S1 or selecting animation from an album function at step S2, display...
Multi-beam antenna reception device and multi-beam reception method
To provide a multibeam antenna reception device capable of improving the reception quality while suppressing an increase in the amount of computation. The...
White light pulse generating method using nonlinear optical device
A nonlinear-optic waveguide device has a thin-wire optical waveguide including a core having a cross-sectional area of at most 1 .mu.m.sup.2 and a cladding, the...
Circuits for scrambling and descrambling packets of various lengths, and
methods of doing the same
A circuit for descrambling a packet transmitted from and received in a communication device, includes (a) a plurality of descramblers each receiving words...
Mobile communication network system, foreign agent router, address server
and packet delivery method employed...
A mobile communication network system is capable of achieving both of route optimizing function and demand for privacy protection. An address server determines...
GPRS system and in-zone node apparatus, and bearer setting method used
A GPRS system is provided which is capable of realizing speed-up of PDP context establishment and reduction of call connection time. At the time of the PDP...
Memory cell and semiconductor integrated circuit device
A memory cell includes a memory cell section and a switching section. The memory cell section includes first and second inverters which are connected to form a...
Duty ratio adjusting circuit
A duty ratio adjusting circuit has a differential buffer (11) to produce a pulse signal (Dout) according to an input sine wave signal (Ain) and a reference...
Comparator circuit with offset control
A semiconductor integrated circuit has: a differential amplifier circuit including a first MOS transistor connected between a first node and a common node and...
Thin film transistor having high mobility and high on-current
An image input apparatus includes an insulating substrate; polycrystalline silicon islands formed on said insulating substrate; pixels each including thin film...
Semiconductor integrated circuit device manufacturing method
To reduce variation in channel lengths of MOS transistors within a circuit functional module. When exposure of a wafer substrate having a semiconductor...
Secondary battery-use negative electrode and secondary battery using it
An object of the present invention is to provide a negative electrode for a secondary battery which has large capacity and restrains a rise in resistance inside...
Externally-loaded weighted random test pattern compression
The present invention is directed to a logic testing architecture with an improved decompression engine and a method of decompressing scan chains for testing...
Integrated circuit device
An LSI according to the present invention has a scan chain which comprises a plurality of SFFs between a buffer connected to an external pin and an internal...
Portable terminal apparatus, recording medium, and portable terminal
apparatus control method
A portable terminal apparatus with an operation key includes at least one shift key, a key setting map, a key control section, and a key setting change section....
Network system and packet data transmission method
A user terminal is connected to an IP network through an access gateway, and service provider networks are connected to the IP network through an exchange router...
Communication system and method capable of broadcasting by using
terrestrial and satellite communication networks
In a communication system for carrying out satellite communication through a satellite among users, a satellite communication center is located in a terrestrial...
Optical information recording medium, and method and device for optical
A recording layer (2) and a light-transmitting layer (3) are provided on a substrate (1) having a guide groove for tracking a light beam projected in a spot for...
Display panel driver
The relationship L1.ltoreq.V(F1.times..di-elect cons.1.sup.1/2.times.100) is satisfied where a transmission path length between the interface 1 and the timing...
Frequency characteristics-variable amplifying circuit and semiconductor
integrated circuit device
From power supply potential wiring to ground potential wiring, a first inductor, a first resistance, a first output terminal, and a first transistor are...
Level conversion circuit with improved margin of level shift operation and
level shifting delays
To provide a level shift circuit in which the margin of level shift operation is prevented from deteriorating when the potential difference between a first power...
Wide-band circuit coupled through a transmission line
To provide a broadband circuit from which a desired circuit characteristic is stably obtained over a wide frequency band with a small number of circuit devices...
Semiconductor device with electrode pads for test probe
A semiconductor device includes a plurality of I/O regions provided in a peripheral region of the semiconductor device. Each of the plurality of I/O regions...
Vacuum ultraviolet-excited ultraviolet phosphor and light-emitting device
that uses this phosphor
A vacuum ultraviolet-excited phosphor is composed of a gadolinium-activated rare-earth aluminum-scandium borate that is represented by a general formula ...
A portion-to-be-melted of a fuse is surrounded by plates, so that heat to be generated in a meltdown portion of the fuse under current supply can be confined or...
Nitride based semiconductor light-emitting device
The present invention provides a semiconductor device having a semiconductor multi-layer structure which includes at least an active layer having at least a...
Semiconductor device, manufacturing method and apparatus for the same
A highly reliable semiconductor chip electrode structure allowing control of interface reaction of bonding sections even in the case of using two- or...
Module connect/disconnect structure and method for disconnecting a module
using the structure
An improved disconnect structure for SFP optical transceiver modules uses a slide 21 that travels relative to the module housing over a limited range. The slide...
Multi-thread execution method and parallel processor system
With a single program divided into a plurality of threads A to C, at the execution of the threads in parallel to each other by a plurality of processors,...
Data decoding method and apparatus and receiver and communication system
applying the same
A receiver including a switch for switching output of a memory to one of paths according to content of the output. The memory stores information bits, first...
Method of controlling power by a power controller controlling a power
switch of an unused communication interface
The wireless LAN access point comprises a CPU, a PCI bus connected to the CPU, a power source section 18 connected to the PCI bus, a wireless LAN interface 16,...
Disk array device managing cache memory by dividing cache memory into a
plurality of cache segments
It is desired that the cache hit rate of access from a host (or an application) not be affected by an access pattern of another host (or an application). To...
Earthquake prediction method and system thereof
Vehicles or ships each carry a magnetic force line sensor, a GPS position detector, and a data transmitter and travel within an observation area transmitting...
Method of control of subscriber data transmissions in a mobile
A subscriber data control method in a mobile communication network which reduces the processing load on a mobile switching center and can effectively use the...
Device and method for setting add signal level for OADM system
An optical level calculator calculates optical powers of individual wavelengths of a through wavelength division multiplexed signal based on an input level...
Optical signal transmission system, optical signal transmitter, optical
signal receiver, method of transmitting...
A main optical signal is wavelength-multiplexed with an optical identifier which is different in wavelength from this main optical signal, before a ...
Telephone system for making call to telephone number read from a sheet
There is provided a telephone system, which can surely read a telephone number written on a sheet such as a name card and make a call to the telephone number....
Method for preparing a profile in W-CDMA communication
The method of this invention for preparing a profile in W-CDMA which, using a timer value and norm value, helps a mobile unit to synchronize its signals with...
Communication device, network system using same, and method of
constructing spanning tree
Spanning tree bridge is devised to minimize the service interruption time after occurrence of a fault in a network or in a component of the network by enabling...