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A coding parameter control circuit 31 computes a frame length from a bit rate and coding delay, and provides the computed frame length data to a CELP coding...
Speech decoder capable of decoding background noise signal with high
In response to a coded speech signal output from a speech coder, a speech decoder decodes the coded speech signal into a reproduction speech signal. If the...
Mobile terminal device to controlling incoming call notifying method
When there is an incoming call, a mobile terminal device detects ambient sounds by a microphone. A filter separates the detected ambient sounds into a speech...
Mobile communication system
By detecting a degraded state of wireless transmission quality due to steady occurrence of re-transmission in an early stage to lead to a call connection, a...
Short message delivery system
A short message delivery system has: mobile terminal devices each having a function of generating and receiving a short message; ground facilities each including...
Optical data transmitting apparatus and method
An optical data transmitting apparatus and method allows data transmission over a distance that surpasses a limit, which has been imposed due to group velocity...
Apparatus and method for self-routing optical packet
One of optical packets x copied by an optical copying mechanism 11 is converted into an electric packet by an optic/electric converting mechanism 13. An address...
Secure parameter generating device and parameter generating method in
algebraic curve crytography
The Stickelberger element computing device computes a Stickelberger element .omega. in an ab cyclotomic; the Jacobian addition candidate value computing device...
Receiver for discrete multitone modulated signals having window function
A receiver for improving the performance of conventional Discrete Multitone Modulation (DMT) based Asymmetric Digital Subscriber Line (ADSL) modems, in the...
A transmission circuit includes a baseband circuit, spreading section, multiplier, digital modulator, quadrature modulator, and antenna. The baseband circuit...
CDMA mobile communications apparatus and base station detecting method
To provide a CDMA mobile communications apparatus which can enhance a detection probability of a base station received with low power. A first threshold...
Semiconductor memory device and address conversion circuit
It is an object of the present invention to provide a semiconductor memory device with a suitable redundancy circuit and an address conversion circuit, wherein...
Magnetic head having an antistripping layer for preventing a magnetic
layer from stripping
By inserting a first antistripping layer comprising a first non-magnetic layer 22 and a first conductive layer 23 between a first magnetic layer 16 and a...
Optical modulator exciting circuit
A circuit for exciting an optical modulator, in accordance with the present invention, includes an optical modulator for modulating an optical signal, a first...
Method and apparatus for enhancing peak luminance on plasma display panel
To provide a plasma display device which implements a peak luminance higher than prior art, reduces the power dissipation, improves the smoothness of gradation...
Wide lock range phase locked loop and method of operation
In a phase locked loop type frequency synthesizer including a phase/frequency comparator for receiving an input signal, a charge pump circuit, a loop filter for...
A plurality of first transistors are connected in series between the first terminal and the second terminal. A plurality of second transistors are connected in...
In a bipolar transistor including a base layer made of SiGe, a non-doped SiGe layer and a non-doped Si layer are provided between the base layer and an emitter...
Thin-film semiconductor device and liquid crystal display
A thin-film semiconductor device is provided including a plurality of thin-film transistors (TFT) having different driving voltages formed on an glass substrate,...
Resist pattern defined by inwardly arched lines
A device pattern of a semiconductor device. The pattern is defined by a plurality of non-straight lines that are inwardly arched and are formed from plural...
Portable wireless telephone
Mobile communication system, base station control device and radio base
station forming the same, and...
Among a plurality of radio base stations, to a radio base station whose transmission delay time between a base station control device and its own station will be...
Portable telephone GPS and bluetooth integrated compound terminal and
controlling method therefor
A terminal device is provided for realizing exclusive control of the portable telephone, GPS and Bluetooth integrated terminal. The terminal device includes a...
Mobile radiotelephone connecting apparatus and mobile radiotelephone
A mobile radiotelephone connecting apparatus and system by which mobile type telephone conversation can be realized using a network is disclosed. A plurality of...
Propagation environment notification methods and notification systems in
radio communication systems, and...
To provide a propagation environment notification method in radio communication allowing a user to easily understand radio propagation environment information....
Active inductors using bipolar silicon transistors
An active inductor includes bipolar transistors T1, T2, T3 and TD (TD being arranged in diode), where T1's emitter is connected to an output port and to T2's...
Antireflective coating structure for photonic crystal and method for
forming antireflective coating structure
A one-dimensional photonic crystal has a spatial distribution in which the refractive index periodically varies in a first direction that light is caused to be...
An optical coupler comprises a tapered waveguide formed so that a waveguide width may be narrower as going from a predetermined starting position toward an...
Network device and method for detecting a link failure which would cause
network to remain in a persistent state
A network device monitors a signal transmitted to a wireless or optical link and a signal received from the link for detecting a bit-by-bit coincidence between...
Data transferring apparatus and data transferring method that use fast
A data transferring apparatus includes a ring bus, which circularly transfers data by holding in a slot to one direction and a plurality of nodes connected to...
IP packet priority control system
An IP packet priority control system of the present invention transmits and receives an IP packet among a terminal on the Internet, a server, and a router...
Communication network system and communication network node for use in the
same communication network system
In addition to five basic operation modes including "Add" operation mode, "Continue" operation mode, "Drop" operation mode, "Split and Add" operation mode and...
Semiconductor integrated circuit
A semiconductor integrated circuit has a first clock distributing circuit and a second clock distributing circuit. The first clock distributing circuit is...
Control and management method for the status of the battery of a portable
The invention is concerned with a method to control and manage the status of a battery of a portable multimedia device equipped with means to memorize digital...
Content-based information retrieval architecture
A content-based information retrieval architecture is herein disclosed that can achieve correct and predictable high speed lookups while taking advantage of...
Modem coupling circuit for power-line carrier
A modem coupling circuit comprising: (a) a transformer 1 having a core 1a including a gap formed therein, primary windings N1a, N1b constituting a bifilar wound...
Power source circuit, electronic device being equipped with same power
source circuit and control method of...
A power source circuit capable of improving an efficiency of using energy of a chemical battery cell by responding suitably to an intermittent change in a load...
Semiconductor device having multilayer interconnection structure and
method for manufacturing the device
A semiconductor device having a multilayer interconnection structure includes a chip semiconductor substrate, a plurality of interlayer insulating layers...
Position detecting system and method
In a position detecting system and method, an electron beam is irradiated to a sample including a portion to be measured, and the electron beam is caused to move...
Printed wiring board
A printed wiring board including a first printed wiring board and at least one second printed wiring board composed of a different material from a material of...
Electrode and battery using same
An electrode including a compound acting as an electrode active material and represented by a general formula (1) having a diazine N,N'-dioxide structure. A...
Portable terminal system, portable terminal, method of controlling
portable terminal, and storage medium...
A portable terminal provided with a text browser for perusing text contents which are supposed to be displayed on a display of the portable terminal, and a help...
Portable information terminal equipment and display method therefor
A portable information terminal equipment with a browser function includes an image information acquisition section for acquiring image information constituted...
Cache memory device
A cache memory device with a cache section, which is provided between a CPU and a main memory and operates as a fast buffer memory, has a capability of storing...
Settlement method in deal of goods or service
When seller identification information and deal information presented by a seller are read in by a sensor, and authentication information is read in by an...
Change-point detection apparatus, method and program therefor
A time-series model learning unit reads in time-series data sequentially, learns the parameters of a time-series model and stores the parameters in a storage...
Multi-function portable data-processing device
A cellular phone of folded type has a cover panel and a base panel coupled by a hinge for swiveling of the cover panel between a folded state and a developed...
Method and system for segmentation, classification, and summarization of
In a technique for video segmentation, classification and summarization based on the singular value decomposition, frames of the input video sequence are...
Cross polarization interference canceller and method of canceling cross
A cross polarization interference canceller includes (a) first and second signal receivers which receive signals having been transmitted through first and second...
High speed timeslot assignment unit and method for a TDMA communication
In a TDMA/TDD transmitter, a control data generation unit receives assignment terms for a number of time slots and slot data from an external source, produces a...