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JP4156512B2 |
The invention relates to a resonance trap (8) for suppressing electromagnetic coupling phenomena for a line (1), which resonance trap includes a conductor (10) which extends parallel to and along a part of the length of the line (1). Con...
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JP4149734B2 |
Techniques for reducing or eliminating effects of noise on a wireless communication system are provided. In one aspect of the invention, the technique comprises monitoring noise attributable to an interference source that may affect one ...
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JP4142715B2 |
A method for use by a receiver of a wireless communication system in providing information of use in adapting to changing characteristics of a communication channel (22) over which the receiver (23) receives a signal at an offset from a ...
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JP4130925B2 |
The invention provides a spread spectrum communication system for maintaining an initial transmit power level of a communication station during periods of inactivity. The system comprises a first station (501) and a second station (502),...
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JP2008178039A |
To provide communication equipment which dispenses with a microphone dedicated to input peripheral noise.The communication equipment includes a microphone (1) capable of acquiring an audio signal and a noise signal, a speaker (5) capable...
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JP4125386B2 |
The invention provides an improved method and apparatus for identifying a bad GSM speech frame. Both the estimated signal-to-noise ratio (ESNR) of the received signal and the pseudo bit error rate (PBER) of a recoded speech signal are us...
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JP4123657B2 |
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JP2008160270A |
To provide a technique capable of effectively reducing noise superposed on an input signal inputted from an electronic device loaded on a vehicle.In this program, a signal processing part 13 acquires rotational frequency data from an ECU...
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JP4113838B2 |
A receiver and a composite component for preventing noise produced by sneaking of a local oscillation signal. An FM receiver comprises a high-frequency amplifier circuit 11 , a mixing circuit 12 , a local oscillator 13 , intermediate-fre...
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JP4106975B2 |
A spread range control apparatus of the present invention controls a clock generator, which generates a spread spectrum clock based on setting of spread data, so as to regulate a spread range of the spread spectrum clock. The spread rang...
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JP4103199B2 |
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JP4100074B2 |
An object is to provide a compact AC adaptor integral-type household-power-line coupler capable of simplifying a structural arrangement of an apparatus containing a communication terminal, and also capable of improving a handling charact...
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JP4094918B2 |
The oscillation frequency of a crystal oscillator is selected such that a frequency difference between the frequency of a broadcast wave (2) received by an antenna (3) and the oscillation frequency or a higher harmonic of the oscillation...
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JP4085853B2 |
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JP2008109441A |
To provide a cable television receiver in which an increase in circuit scale of a local oscillator is prevented, and a local oscillation signal to be inputted into an FDC Channel reception tuner does not interfere with an FAT Channel rec...
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JPWO2006013638A1 |
The present invention is to provide a connector, an information processing device, and an information transmission system that are less susceptible to ambient noise. A housing 103 having a connection to be connected to another device or ...
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JP4083270B2 |
In the radio transmission method according to the invention, which operates with a mixed frequency and time division multiplex method FDMA/TDMA, in which a relatively broad frequency band is divided according to the FDMA method into a pl...
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JP2008085719A |
To provide a radio communication device which saves electric power and has high efficiency by securely detecting periodicity of a disturbance wave that a microwave oven radiates even when a radio wave comprising various mixed radio waves...
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JP2008086013A |
To provide a method and apparatus of network management using signal parameters operating as a perceived signal to noise indicator in preference to an RSSI that poses certain serious limitations.The method and apparatus of network manage...
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JP2008077682A |
To provide a method of array processing for solving a linear system.PEs (Processing Elements) (54-54N) are utilized for the solving linear system. One embodiment (Fig. 3b) projects matrix elements along a diagonal of the matrix onto scal...
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JP2008072263A |
To provide a noise monitoring/eliminating circuit capable of selecting the optimum filter in accordance with the noise change of an installation environment or the like.Power input from a power input terminal 11 to a filter part 12 is br...
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JP4068097B2 |
A signal-to-interference ratio (SIR) estimator for estimating a SIR of baseband signals which are received and processed by a data demodulator to provide demodulated signals to the SIR estimator. The SIR estimator receives the demodulate...
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JP4068065B2 |
A method and apparatus for transmitting data in code division multiple access communications. The method includes processing spread first data with a channel response matrix using an equalization circuit to pre-equalize the spread data t...
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JP2008507023A |
A common-mode voltage generator for a battery-supplied apparatus is provided with a battery voltage ripple-insensitive sensor comprising a voltage dividing circuit and a number of hysteresis comparators, by means of which a battery volta...
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JP4052138B2 |
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JP4049064B2 |
To reduce noises mingling in a signal cable in a weak current signal transmitter, especially an SRNM detector in a nuclear power plant. In the SRNM measuring instrument in the nuclear power plant, a weak current from a fission chamber fo...
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JP2008035356A |
To obtain a noise canceler capable of effectively eliminating noise by reducing the noise that superimposes itself on wiring from a microphone for collecting ambient noise to a signal processing circuit, to provide a sound collecting dev...
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JP2008026700A |
To provide a digital communication system capable of generating an output signal including information regarding the reception state of a reception signal with simple constitution without increasing costs.The digital communication system...
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JP4044500B2 |
The Shannon limit governs the ultimate bit rate at which a digital wireless communications system may communicate data. A digital wireless receiver may be enhanced such that it approaches the Shannon limit by decomposing a n-dimensional ...
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JP4042665B2 |
To provide a mobile communication apparatus using a balanced line for enhancing the noise immunity. A ring 60 with high permeability is mounted to connection parts between fixed stations 20 and termination parts 30 corresponding to termi...
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JP2008503137A |
A passive processing device (D) is adapted to be interfaced in a full integrated way on at least a first audio signal path defined between a first audio signal source and an audio signal processing means of an electronic device, such as ...
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JP2008502881A |
To provide a method of operating a shielded connection where signals are exchanged between two nodes (1) on a communications network over a connecting line (5a, 5b) and the connecting line (5a, 5b) has a shield (3), by which method can b...
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JP4040357B2 |
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JP4040228B2 |
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JP4037810B2 |
A compact radio equipment includes internal circuits on two or more printed circuit boards electrically connected to each other and securely mounted in structure. With this structure, a first metal shield frame (121) is mounted on a firs...
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JP4034440B2 |
To sufficiently reduce an EMI level without using any EMI countermeasure parts and a housing shielding member which cause cost increase. A video camera 21 of an analog system is provided with a CCD 22 that photographs an object, a CCD dr...
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JP2008005539A |
To provide a technology capable of reducing the power consumption of each of a plurality of transmission reception stations configuring a spread spectrum communication system, particularly, mobile subscriber station units.In the spread s...
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JP2008005529A |
To provide a CDMA MODEM for transmitting/receiving a communication signal including an information signal and a connection control signal through a transmission channel and a reception channel respectively including first and second pilo...
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JPWO2005078972A1 |
The communication state activating material according to the present invention is characterized by containing a composition containing at least zirconium oxide and thorium oxide. And preferably, the composition is among the components of...
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JP4028942B2 |
A detector outputs a detection signal indicating amplitude variation of an input frequency-multiplexed signal. An amplitude controller adjusts the amplitude of the frequency-multiplexed signal by referring to the detection signal. A modu...
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JP4027466B2 |
In a computer or other digital system a clock or other synchronous signal (12) is routed from a source (16) to a destination (18) as a double side band suppressed carrier (DSB-SC) signal (14). The clock or other synchronous signal is amp...
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JP2007537631A |
A CMOS transconductor for cancelling third-order intermodulation is provided. The transconductor includes a transconductance circuit and a tuneable distortion circuit. The transconductance circuit takes an input voltage and generates an ...
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JP4023812B2 |
A bus structure of a mobile communication terminal for reducing digital noise is disclosed. The bus structure comprises a bus switch controller, a first element having a first bus, a second element having a second bus, and a common bus f...
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JP4024859B2 |
A system and method for reducing radio frequency interference arising in connection with pulsed transmission over time division multiplexed communication channels. In a first embodiment, a subscriber station is nominally assigned all of ...
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JP2007324787A |
To stabilize the operation of a ground isolation amplifier for inputting a noise superposed signal and noise, and canceling the noise. In this signal processing circuit 200A provided with a noise input terminal 202, a signal input termin...
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JP4019281B2 |
An audio apparatus comprises a tuner for receiving broadcast waves; a digital reproducing unit; operation switches for operating the tuner and the digital reproducing unit; and a control unit for controlling the tuner and the digital rep...
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JP4021573B2 |
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JP4021710B2 |
A clock modulating circuit includes a first to nth delay circuits, a selection signal generator and a selection circuit. The first delay circuit receives an original clock signal and outputs a delayed clock signal. The second to nth dela...
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JP2007318804A |
To reduce problems of heat dissipation in a regulator by adjusting the output of power supply in accordance with the temperature and other variables. The present invention relates to a system to alter the voltage supplied to the linear r...
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JP2007533253A |
Receivers accommodating carrier frequency selection methods in wireless communications systems employing multiple carrier frequencies are described. Although the receiver is tuned to a single band, an estimate of the channel quality corr...
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