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JP3630105B2 |
To provide an inexpensive point-multipoint communication system that is capable of long-distance communication and reduces the influence of interference from another system existing outside a service area by using a radio LAN requiring a...
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JP3628800B2 |
To provide the microwave converter with an excellent characteristic without caring about layout of circuits and layout of earth and shape thereof even when a converter circuit such as a high frequency circuit, a power supply circuit, and...
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JP3630225B2 |
To minimize advanced working time or cost and incorporate in an existing jack connector by installing a first metal electrode having a first terminal; a second meal electrode having a second terminal; and a dielectric spacer arranged bet...
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JP3630081B2 |
To provide a termination circuit for communication equipment that maintains a normal operating state even when a power supply is accidentally interrupted and does not generate a radio noise with small power consumption. The termination c...
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JP3626492B2 |
Properties of human audio perception are used to perform spectral and time masking to reduce perceived loudness of noise added to the speech signal. A signal is divided temporally into blocks which are then passed through notch filters t...
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JP3625307B2 |
PURPOSE: To reduce influence owing to the variance of delay, narrow band interference and the influence of frequency selective fading by inversely diffusing transformed serial data and demodulating a modulation signal which is inversely ...
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JP2005505862A |
The present invention discloses a workflow mining system which can evaluate, analyze and determine previous execution results of processes or activities by applying a data mining technique to workflow log data accumulated during the oper...
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JP2005045549A |
To prevent a reception disturbance by higher harmonic generated from a power supply device.When the channel of a broadcasting wave of radio broadcast is selected, a receiving frequency is acquired. Oscillatory frequency is detected from ...
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JP2005045537A |
To provide a portable telephone with a built-in television (TV) signal receiving function by which adverse effects of a TV tuner can be reduced to portable telephone signals.A TV tuner synthesizer frequency setting change deciding part 5...
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JP3621113B2 |
A radio communication system (100) implements a frequency reuse plan by sending a message (308) simultaneously with other messages in a plurality of cell clusters (202-208) utilizing the frequency reuse plan, which provides a message car...
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JP3619461B2 |
To suppress the occurrence of quality deterioration in a reproducing caused by sound image displacement and residual noise in the reproducing side while employing a conventional single channel noise suppressor to multichannels. In a comp...
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JP2005027226A |
To provide a method by which radiation field from a telephone line associated with DSL communication can be reduced; and to provide a terminal device, a central terminal, a relay device and an xDSL communication system for the method.A c...
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JP2005027004A |
To provide a method and a device for canceling periodic noise superimposed on a signal even when there is no known signal level in a noise canceling circuit used in various digital devices.This device is provided with a spurious radiatio...
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JP2005007178A |
To provide a movable radio operating device for medical apparatuses which can be realized at a reasonable cost and provide high flexibility and safety of operation.This medical apparatus is equipped with: at least one operation devices 3...
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JP2005012713A |
To provide an image forming apparatus capable of reducing a mutual influence from signal lines when signals of different signal output voltages are housed within an identical cable.The image forming apparatus includes a write section 10 ...
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JP3610343B2 |
Reference frequency spur cancellation in a synthesized measurement receiver is achieved by determining for any given frequency to which the receiver is tuned a list of integer multipliers of the reference frequency that produce spurious ...
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JP3609597B2 |
To provide noise current absorbing tools capable of being fitted to required places on a substrate by required number. A noise current absorbing tool 1 consists of a ferrite piece 3 formed as a flat panel and a soldering fixing part 5 la...
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JP2005005922A |
To improve receiving performance by providing a circuit for offsetting noise by measuring common mode currents of a power line to adjust an output impedance for reducing the common mode currents and for reducing a leakage electric field....
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JP3606428B2 |
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JP3602157B2 |
PURPOSE:To provide a circuit for simplifying a circuit configuration, suppressing the generation of spurious higher harmonic wave distortion and satisfactorily applying desired distortion. CONSTITUTION:The distortion generating circuit i...
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JP3599486B2 |
To perform radio communication as frequently as possible in the same radio area by using the radio channels included in a selected group. The channel groups which have no mutual interference by the mutually modulated waves and also can s...
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JP3598976B2 |
To detect impulsive noises in the positive and negative direction overlapping a power source system of themselves with a simple constitution. A noise detector A detecting impulsive noises impressed in a power source line and an output ho...
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JP3599951B2 |
To prevent a navigation system from receiving interference due to higher harmonics of a local oscillation signal that is generated from a local oscillator by providing an attenuating means, which attenuates signals of a frequency that is...
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JP2004336477A |
To provide vehicle communication equipment which suppresses the occurrence amount of noise to disturb a transmission signal low.In the vehicle communication equipment provided with an on-vehicle machine mounted on a vehicle, the on-vehic...
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JP3593936B2 |
To prevent the basic wave or higher harmonic of a clock used in the information processing means of an information processor with radio function from entering a radio frequency band used by a radio communication means, from interfering w...
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JP3589137B2 |
To reduce unsuitable electromagnetic coupling of electromagnetic waves inside and outside the casing of a communication apparatus, which packages circuit elements or the like comprising a transmitting/receiving circuit inside the casing....
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JP2004320471A |
To stabilize the communication operation of a transmission signal line and reduce undesired radiation in a high-speed electric signal communication device.The transmission line signal outputted from an output buffer and a transmission si...
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JP3588430B2 |
To provide a wireless repeater that can quickly eliminate the effect of a reflected wave and a sneak path wave. An interference canceller 16 has a reflecting wave canceller function that eliminates a reflecting wave component included in...
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JP3586661B2 |
To provide a communication system that can acquire a prescribed data rate without being affected by a background noise amount. Upon receipt of a signal from a reception filter 14, a background noise level detector 15 of an ADSL(Asynchron...
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JP3584603B2 |
To provide a transmitter-receiver in which transmission and reception are attained simultaneously even when a transmission signal and a reception signal have a strong correlation at the same frequency by providing a prescribed filter mea...
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JP3584158B2 |
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JP2004312519A |
To provide a communication system capable of reducing the influence and interference to the electronic equipment outside a housing caused by radio waves in the case of performing radio communication in the housing.A fact that a frequency...
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JP3581971B2 |
An EMI prevention circuit has a first ground pattern grounded to a car body and a second ground pattern connected to the first ground patter by way of an EMI condenser. A large-current ground line through which a large current flows is c...
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JP2004288069A |
To remove an adverse effect of noises occurring from a power supply unit in a personal computer on a peripheral device.The power supply noise eliminating device comprises two connectors for providing a filter means between a power supply...
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JP3575345B2 |
To reduce unnecessary noise by setting an output amplitude corresponding to the attenuation quantity or cable length of a transmission line. This device comprises a transmitting circuit 11 which outputs a transmit signal, a variable atte...
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JP3576589B2 |
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JP3574578B2 |
To really optimize transmission characteristics by equalizing transmission error rates among signal light rays on a reception side by adjusting OSNR (optical signal-to-noise ratio) on a transmission side by wavelength-division multiplex ...
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JP3572964B2 |
In a digital subscriber line transmission system, by using a method and device for detecting a periodical noise section, the reliability of communication in a periodical noise environment is improved. Reference parameters (bNEXT, bFEXT) ...
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JP3570386B2 |
To improve reception S/N by preventing the leakage of a clock signal from a CPU to a coaxial cable connected from a radio circuit board which is most likely to be mounted on the front part of a case body from the point of view of arrange...
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JP3570368B2 |
To enable a radio communication device to avoid the effect of interference electromagnetic waves on it by accurately detecting the periodicity of interferential electromagnetic waves emitted from a microwave oven or the like, where the r...
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JP3571410B2 |
An multiplex communication system for an automobile (A) comprises a plurality of control units (1) interconnected by a communication cable (4). The cable (4) has a uniform characteristic impedance and comprises a plurality of cable segme...
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JP3567905B2 |
An oscillator with a noise reduction function is provided that can arbitrarily change the setting of a spread spectrum modulation and easily reduce the noise of electronic equipment, a writing device that can change the setting of the os...
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JP3568255B2 |
PURPOSE: To improve the quality of a voice even when a background noise from outdoors or the like is superposed to the voice in a digital mobile radio communication system such as an automobile telephone system and a portable telephone s...
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JP3566663B2 |
An information processing apparatus, comprising a wireless module which performs wireless communication, the wireless module being detachably mounted, a frequency circuit which generates a plurality of frequencies, the plurality of frequ...
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JP3560465B2 |
To maintain the quality of an incoming signal at a constant level by making a center device receive a reference pattern signal, whose transmission level is controlled, measuring the receiving level of the reference pattern signal, and de...
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JP3556419B2 |
To immediately operate a noise cancellor in a converged state, when a call from transmission/incoming call starts or when a busy mute is released and to satisfactorily maintain the quality of the call. At the time of transmission/incomin...
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JP3555305B2 |
To obtain excellent compensation capability with respect to only linear waveform distortion by conducting waveform distortion in a feedforward neural network in combination of specific nonlinear and linear hidden layers. A feedforward ne...
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JP3553306B2 |
To provide a highly reliable device which can set a restriction range fitted to respective input terminals when the ranges of input voltage in the respective input terminals of a comparator differ and which is proof against noise by rest...
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JP2004222121A |
To suppress the radiation of a high frequency in accordance with the length of transmission lines by reducing a common-mode current component on the transmission line.In a reader/writer 31, a common-mode choke coil 51 is inserted between...
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JP2004215038A |
To reduce reception disturbance in a broadcast wave receiver caused by the radiation noise of a carrier wave.A communication ECU 11 identifies each broadcast wave frequency corresponding to an area including a vehicle position detected b...
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