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Apparatus and methods for inserting and detecting electronic watermark
A secure electronic watermark inserter. A picture analyzer 3 analyzes an input picture 101, and decides the insertion strength of the electronic water marking to...
Apparatus and computer-recording medium for evaluation support of
encryption algorithm strength
An encryption evaluation support system, includes an evaluation executing unit, and a point storing unit. The evaluation executing unit receives a figure...
Circuit for recording digital waveform data and method of doing the same
A circuit for recording digital waveform data includes (a) a first counter which counts the number of data constituting a first data sequence including a...
Speech signal decoding method and apparatus using decoded information
smoothed to produce reconstructed speech...
In a speech signal decoding method, information containing at least a sound source signal, gain, and filter coefficients is decoded from a received bit stream....
Data output processor and method of manufacturing a semiconductor device
A data output processor is employed when forming a conductive pattern on a layer formed with a plurality of recesses by filling the plurality of recesses with a...
Method and apparatus for sending battery capacity level between radio
A portable telephone that includes a control unit, a memory unit, a wireless communication function unit, an imaging unit, a display unit, an operation unit, a...
Mobile communication system, transmission mode switching method, and
recording medium having transmission mode...
To provide a mobile communication system capable of easily performing selection of an optimal transmission mode. Upon receiving a receiving error notice from a...
Picture compression managing apparatus and picture compression managing
method used therefor
In a picture compression managing apparatus, a reduced picture producing section (23, 26) produces, in response to an index affix request, a reduced input...
Biometric data acceptance method
A biometric data acceptance method allowing input biometric data obtained by an incorrect input operation not to be accepted. At least one reference biometric...
Image data protection technique
An image data processing device allowing both of user side and provider side to obtain benefits, leading to market expansion, is disclosed. When an image content...
Telephone set and response method to incoming call
A telephone set is provided that includes a control section that, when detecting an off-hook operation, instructs a tone generator and a codec to stop a...
Key telephone unit and key telephone system
A key telephone system including (a) at least three telephones, and (b) a key telephone unit connected to the three telephones through at least three...
PLL (Phase-Locked Loop) circuit
If a phase difference between a synchronizing source signal F1 and a comparison signal F2 is higher than a first lower limit a or lower than a first upper limit...
Frame display method and apparatus using single field data
The present invention relates to a method for displaying picture frames using single field data in interlaced encoded image data having a two-field structure....
Path searcher for spread spectrum receiver
A path searcher of a spread spectrum receiver includes a number of correlators each of which produces a replica of a scrambled synchronization code and...
Method of detecting path timings and CDMA receiving apparatus using the
A CDMA receiving apparatus includes a searcher section, a finger section, a RAKE synthesizing section and a decoding section. The searcher section has a...
Multi-service-class definition type ATM switch
A multi-service-class definition type ATM switch is basically configured by an ATM buffer device containing buffers, a data input/output device and a data...
Transport network with circuitry for monitoring packet path accommodated
in STM path
A network node of a SONET ring is provided with a tributary line interface that receives packets from LAN users. A packet switch performs a switching operation...
DC-offset eliminating method and receiving circuit
A DC-offset eliminating circuit changes a coefficient .alpha. for determining a DC-offset follow-up speed. The coefficient .alpha. is changed to a smaller value...
Communication terminal device
A communication terminal device including a light-emitting unit for lighting at least either a display unit or an input unit, a reception unit for receiving...
3D image/2D image switching display apparatus and portable terminal device
A 3D image/2D image switching display apparatus is provided with a liquid crystal display unit and first and second lenticular lenses. To display a 3D image, the...
Operational amplifier with self control circuit for realizing high slew
rate throughout full operating range
An operational amplifier comprises: differential input stages to which differential signals can be inputted with full operating range; current source circuits...
Active inductance circuit and differential amplifier circuit
An active inductance circuit comprising a signal terminal (OUT) and having voltage and current characteristics, as viewed from this terminal, which are identical...
A semiconductor device including a tristate buffer circuit, which includes, on an output stage, at least a first transistor (P1) for pull-up driving and a second...
Semiconductor device, and wiring-layout design system for automatically
designing wiring-layout in such...
In a semiconductor device having a plurality of area sections defined therein, a basic multi-layered wiring arrangement is provided on a semiconductor substrate,...
Card-mounting rack for electronic part-mounting cards
A card-mounting rack for electronic part-mounting cards is disclosed by which a housing of a rack or the like produced in accordance with standard specifications...
Semiconductor device having dummy gates and its manufacturing method
In a semiconductor device including active areas where transistors are formed and a field area for isolating the active areas from each other, the field area has...
Semiconductor thin film, thin film transistor, method for manufacturing
same, and manufacturing equipment of...
A method for manufacturing a semiconductor thin film is provided which can form its crystal grains having a uniform direction of crystal growth and being large...
Semi-custom-made semiconductor integrated circuit device, method for
customization and method for redesign
An ASIC includes a function layer formed with plural universal logic cells, a common layer formed with conductive strips connected to the universal logic cells...
Uninterruptible power supply unit for allowing a computer to wake up
before receiving notification of power failure
An uninterruptible power supply unit can communicate with a computer being in a suspend or sleep state. The uninterruptible power supply unit includes a first...
Cache memory and control method thereof
A cache memory related to the present invention is a cache memory employing a set associative system, for generating a valid bit for showing the presence of...
Link state routing techniques
A link state routing communication device allowing path precalculation satisfying the required quality of a connection and reducing the call blocking probability...
Voice decoder, voice decoding method and program for decoding voice
A voice decoder comprises the first voice decoding circuit which is specialized for decoding narrow band voice signal, the second voice decoding circuit which is...
Dual mode mobile communication devices and method for selecting a network
The invention relates to improvements in standby time in a dual mode mobile communication device.A device according to the invention comprising means for...
Portable telephone terminal and method of customizing the same
In a portable telephone terminal for use in network services provided by a plurality of communication service operators through networks, respectively, the...
Positioning method using mobile terminal and mobile terminal having
A mobile terminal has a neighboring mobile terminal communication unit for communicating with a neighboring mobile terminal existing near the mobile terminal for...
Frequency correcting method for cellular phone terminal
When a cellular phone terminal is powered on, it immediately receives a reference signal (non-modulated reference frequency signal for correcting a crystal...
Determination of similarity using weighting value depending on the type of
A similarity determining apparatus is disclosed which determines whether a query signal and a search signal are similar to each other or not. The similarity...
Gateway system and fault management method
A gateway system prevent an occurrence of a call loss and an inaccessibility of the SG and can effectively utilize communication lines, even if a fault occurs on...
Method and network for tolerating a fault on hubs and lines
Hubs 11 14 are circularly connected with each other. The hubs 11 and 12 are supplied with electric power from the power source 1 and the hubs 13 and 14 are...
Semiconductor storage device
The semiconductor storage device has a clock input buffer to output an internal clock signal INCLK, a NOT circuit to receive an external signal /CS, and an OR...
Optical modulation system applying a highly stable bias voltage to an
An optical modulator is driven by applying, to a first signal electrode, an amplitude-modulated input driving signal waveform, which has a pair of same phase...
Liquid crystal display device including columnar spacer above gate line
A liquid crystal display device using columnar spacers to eliminate an influence of shades in rubbing an orientation film and to eliminate remaining of display...
Reflection type liquid crystal display provided with transparent pixel
electrode and manufacture method thereof
In order to realize the manufacture of a reflection type liquid crystal display in the same manufacture processes as those of a transmission type liquid crystal...
Method of fabricating liquid crystal display device
The method of fabricating a liquid crystal display device includes the steps of (a) fabricating a switching device on a substrate, (b) forming an interlayer...
Portable information terminal equipped with camera
The information terminal body may be designed to foldably pivot a pair of flat cases each having a display unit through a hinge which is equipped with a...
Method and circuit for driving liquid crystal display, and portable
A method for driving a liquid crystal display capable of reducing power consumption, decreasing a packaging area or a number of packaged parts, and providing an...
Signal processing circuit board with variable resistor which is hardly
declined in the mechanical strength...
A signal processing circuit board includes a board body, a variable electronic element, and a hole. The variable electronic element is mounted in a mounting side...
Reference vibration generator, its mutual synchronizing system, and its
mutual synchronizing method
A reference vibration generator 1 receives transmission waves from all reference vibration generators including itself as transmission/reception waves...
Lighting method of ultra-high pressure mercury lamp
A lighting device for an ac-lighting type ultra-high pressure mercury lamp includes: a stepdown chopper for converting dc voltage that is supplied from the...