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JP2003218807A |
To provide an electronic apparatus for serial communication which prevents clock frequencies of respective sources from becoming noise of other sources.In an electronic apparatus having a plurality of sources, the clock rate of a serial ...
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JP2003522450A |
A sampling system includes an input terminal for receiving a data signal having a signal component and possibly a noise component. A sampler samples the data signal at a sample rate set in responsive to a control signal. A noise detector...
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JP3428191B2 |
PURPOSE: To attain accurate pulse width communication in the case of communication between different microcomputers by correcting pulse width of a transmission pulse signal to decode transmission data when a received pulse signal is a tr...
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JP3427381B2 |
To provide a method and device for canceling noise for power line carrier communication or the like that adaptively selects a band to an actual noise to cancel noise and enhances the S/N to enable high-speed communication. A zero point i...
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JP2003198402A |
To provide a receiver which does not generate spurious signals in a demodulated signal and is suitable for semiconductor integration.The receiver is provided with a first local oscillator, a first mixer, a first frequency control means, ...
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JP2003198488A |
To provide an electric connector obtained by combining, especially, an electronic noise filter system.The digital filter adapter in accordance with the invention comprises a first connector for connecting to an interface of an electronic...
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JP2003520486A |
The transmission system according to the invention comprises a transmitter ( 10 ) and a receiver ( 12 ). The transmitter ( 10 ) can transmit a signal ( 11 ) to the receiver ( 12 ). The receiver ( 12 ) comprises an interference absorption...
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JP3411713B2 |
PURPOSE: To improve the usability by eliminating the complicated troublesome operation in which ON/OFF control over a noise remover provided on the transmission side of a transmitter/receiver for speech encoding communication to remove a...
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JP2003517761A |
A method and apparatus for suppressing acoustic background noise in a communication system. An operating signal-to-noise ratio (SNR) level is reliably evaluated from channel energy (293) and background noise energy (294) values by a SNR ...
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JP3409390B2 |
PURPOSE: To prevent a ghost reception fault by covering a feeder wire with a flexible tubular conductor through a dielectric and covering the conductor with a magnetic material in a specific thickness. CONSTITUTION: A periphery of a cent...
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JP3411055B2 |
PURPOSE: To provide a satellite communication system capable of removing intrusion from a specified position in a receiving beam. CONSTITUTION: The satellite communication system is connected to a double mode network and includes an ante...
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JP2003140686A |
To provide a noise suppression method for voice input with which noise of a voice signal can be suppressed irrelevantly to the position of a sound source.A plurality of microphones provided at a plurality of spots in a specified space co...
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JP2003133972A |
To eliminate power supply noise generated from a switching regulator in a phase modulation wireless transmitter.In a computer device 1 having a phase modulation wireless transmitting circuit 2 which receives power supply from a switching...
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JP2003130893A |
To provide a measuring circuit capable of performing the measurement of high accuracy by eliminating the influence induced by a peripheral noise voltage source.In this electric circuit composed of a high impedance circuit 10, a wiring 50...
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JP3402498B2 |
PURPOSE: To reduce contact noise by performing a data transmission between an operation display part and a main body part by using an asynchronous data transmission system. CONSTITUTION: When a user depresses the key of a key input devic...
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JP2003122728A |
To solve problems that there is only a unit converter corresponding to conversion rate of only one area in the unit converter handling a unit to be used in a wide area and a plurality of kinds of devices are required though it is the dev...
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JP2003514479A |
A clock recovery circuit and a method for reducing electromagnetic emission (EMI) and increasing an attainable clock frequency includes a spread spectrum clock (SSC) generator that receives an input clock signal and generates a frequency...
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JP2003514483A |
A system and method for suppressing disturbance signal components in a communication signal is disclosed. The system and method utilize a priori information about the fundamental frequency of the disturbance signal component to generate ...
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JP3397462B2 |
PURPOSE: To make the circuit configuration small and to reduce the manufacturing cost by preventing superimposition between a desired signal and other signal due to loopback without using a low pass filter so as to keep accurate conversi...
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JP2003513503A |
A communications terminal having a receiver and a method therefor is provided that substantially removes a known interferer from a digitally translated intermediate frequency signal. More specifically, the receiver includes an antenna fo...
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JP2003513560A |
A communication system comprises a network, such as a hybrid fibre coax (HFC) network, one or more optical transmitters and potential impulse noise sources for example electrical in-home equipment, as well as filter means coupled between...
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JP3395238B2 |
PURPOSE: To provide an isolation circuit which can transmit a digital signal with a frequency higher than the signal transmission limit frequency of a photocoupler. CONSTITUTION: This circuit is provided with load circuits 12 and 13, and...
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JP3388751B2 |
A protection circuit includes a first controlled path for discharging negative ESD pulses introduced at a signal node. The first controlled path is from the signal node to Vcc via the source and drain electrodes of a first transistor. Th...
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JP2003510537A |
A metal gasket for preventing leakage of radio frequency signals when mounting shielded radio electronics includes gasket body having a first surface and an opposite second surface and a plurality of spring arms. Each spring arm includes...
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JP3386418B2 |
To absorb an unnecessary incident radio wave where ghost affection occurs when the television broadcast radio wave of other station is reflected and is re-radiated in side a transmission antenna when the radio wave enters the transmissio...
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JP3387460B2 |
To solve the problem that a canceling circuit cannot be expected to stably operate since a means for automatically adjusting characteristics of the canceling circuit is not provided and a sufficient band cannot be secured by automatic ad...
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JP3385266B2 |
In a noise canceling method and an apparatus therefor which notices the colored noise looked macroscopically, positively cancels the dominant noise component in the low frequency band, shifts the S/N value to plus, and can extract the re...
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JP2003508764A |
A method and apparatus for processing step-like output signals generated by non-ideal, nominally single-pole ("N-1P") devices responding to possibly time-varying, pulse-like input signals of finite duration, wherein the goal is to recove...
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JP2003058186A |
To suppress not only a usual noise such as automobile traveling sound but also the unusual cyclic noise of a fire truck or a police car with small scale memory capacity and computational complexity. The presence/absence of a noise as a s...
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JP3378202B2 |
To protect a communication system and other system sensitive to lightning sensitize system lightning against the lightning. At least the power portion of a transmitter and the receiver front end of a base station for a radio communicatio...
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JP2003046453A |
To provide a power supply IC that can downsize an on-vehicle device and attain power line communication with risistance to noise. The power supply IC 9a is connected to a control microcomputer 10 built in an ECU and a power line 5. The p...
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JP2003505952A |
A method of encoding data (21) in the visible portion of a transmitted video signal (11) without degrading display of the received video signal, and for decoding (11) the data in the received video signal (13). Each group of data bits to...
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JP2003032198A |
To make it possible to detect an external noise superimposed on a power supply even when it increases or decreased the level of the power supply and to detect that between which circuit blocks in an integrated circuit a potential differe...
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JP3370955B2 |
A reference signal detecting device detects, as a reference signal, a signal received from a transmission partner corresponding to a transmission power equal to or higher than a predetermined threshold value, and a compensation-free sign...
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JP3368223B2 |
To make a radio LAN system, used in the vicinity of a microwave oven, to hardly receive effects of microwave, generated from the microwave oven, without increasing the circuit scale of the system. A microwave oven 200 is provided with a ...
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JP3363150B2 |
The present invention relates to the field of signal processing. More specifically, the present invention relates to the processing of measured signals to remove undesired portions when little is known about the undesired signal portion.
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JP3365186B2 |
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JP2002374214A |
To provide a method for reducing noise emitted from a cable, without enhancing the input impedance between both electrical devices. In the case of interconnecting an electrical device 20 to an electrical device 10 provided with a noise s...
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JP2002374213A |
To provide a distortion compensating circuit that reduces multiple reflection to reduce changes in distortion compensation effects by using frequency, thereby carrying out proper distortion compensation. The distortion compensation circu...
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JP3360464B2 |
A feedforward amplifier comprises a first feedforward circuit and a second feedforward circuit. The first feedforward circuit detects the distortion component of the output of a main amplifier through a first distortion detection circuit...
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JP3360668B2 |
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JP2002368700A |
To provide a noise eliminator, having for enhanced reliability by improving measurement accuracy of the physical characteristics value. The noise eliminator, including a measurement means that detects a signal from a prescribed signal li...
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JP2002543506A |
The invention concerns a method for solving a problem caused by a transitory current adjustment phenomenon (6) at the time of a call in a mobile telephone, which consists in providing precompensation (7) of the adjustment circuit in adva...
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JP3356979B2 |
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JP3354939B2 |
An active damping circuit for an electromagnetic interference (EMI) filter for power factor correction (PFC) circuit is provided which simulates a line damping impedance which actively varies according to sensed line current. The active ...
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JP2002353836A |
To provide a multi-stage conversion radio frequency receiver that avoids conversion spurious. The method includes steps 20, 22 of obtaining a table of problem frequencies of a first local oscillator relative to a frequency of a second lo...
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JP2002341959A |
To reduce peak values of spectrum at a reference frequency of a clock signal and the respective harmonic frequencies of it without extending a frequency modulation range to the clock signal in a clock signal generating method and its dev...
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JP3350344B2 |
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JP2002329573A |
To reduce noise generating from a magnetron in a power source for driving the magnetron.The power source for driving the magnetron is equipped with a rectifying circuit 6; a commercial-frequency smoothing circuit 7; a high frequency conv...
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JP3344353B2 |
To improve estimation characteristics of a signal estimator by rotating the phase of a receive signal according to the phase of the output signal of a voltage-controlled oscillator, detecting the impulse response of a transmission line, ...
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