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JP2006303975A |
To prevent electric noise generated as an electric motor operates from causing a radio receiver to generate noise under relation control over the electric motor and radio receiver mounted on a vehicle.When the electric noise generated as...
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JP2006524951A |
A method and apparatus for reducing the number of time slots allocated to a wireless transmit/receive unit (WTRU) by a serving cell in a time division duplex (TDD) wireless communication system that comprises a plurality of cells and a r...
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JP3837116B2 |
To provide a subscriber station unit for a large capacity multiple access spread spectrum communication system, which forms a plurality of concurrent user bearer channels through a prescribed radio frequency, to enable dynamic allocation...
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JP2006279499A |
To provide a radio communication device which employs a muticarrier transmission system such as an OFDM system and whose communication quantity in a noisy environment is improved.The radio communication device which employs the multicarr...
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JP3830773B2 |
To provide a portable telephone set capable of reducing changes in gain, due to the circumstance of the user's hand. In a foldable portable telephone set 1, a shielding box 14 in an upper case 3 is connected with a flexible cable 9 to th...
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JP3833552B2 |
To properly prevent a crosstalk between a transmitting circuit and a receiving circuit. A board 51 internally includes: a transmission side ground layer 26b to be connected to an optical signal transmitting circuit; and a reception side ...
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JP2006262281A |
To provide an information receiving apparatus for oscillating the local oscillation frequency of an FM multiplex broadcast receiver while shifting it just for a predetermined frequency (α KHz) out of an audible frequency band by shiftin...
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JP3828076B2 |
A communication apparatus is provided which employs two oscillators to generate a transmission signal and a reception signal, and prevents harmful spurious components from being produced. As shown in FIGS. 9 A and 9 B, the oscillation fr...
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JP3823594B2 |
To obtain voice signals in which only noise components are reduced from voice signals in which mechanical noise which is intermittently generated in time-wise is mixed. This device is provided with means which preliminarily sample mechan...
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JP2006521052A |
A bondwire decoupling filter 300 for filtering RF noise from a transceiver bus 330 of a transceiver 303 connected a device 302 to be protected from RF noise. The filter includes an external capacitor 315 adapted to receive an output from...
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JP3822057B2 |
In the conventional mobile communication terminal device, there exists a problem in that when a transmission power amplifier is turned ON, a battery voltage supplied to a transmission local oscillator momentarily drops, producing a phase...
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JP2006520124A |
Method and apparatus of network management using a perceived signal to noise indicator (PSNI), in preference to received signal strength indicator to provide physical layer measurements in a multitude of stations in the network, either b...
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JP3817161B2 |
To provide a chemical material classifying device or the like, capable of classifying the information showing a change in quantity of chemical material with good accuracy. An information receiving part 102 of this chemical material class...
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JP3813379B2 |
To surely obtain a shield effect of an RF circuit module of a communication unit provided with the RF circuit module by reducing number of components of the communication unit so as to decrease the component cost and to simplify the asse...
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JP2006213289A |
To provide a vehicle-mounted receiver with a constitution for improving a noise-resistant performance of wireless signals from a mobile device without misoperations such as receipt of tire air pressure monitoring electric waves of other ...
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JP3808827B2 |
To provide an electronic apparatus that realizes layout of a plurality of modules to a limited mount area while keeping the mutual interference to a tolerable degree. The electronic apparatus is provided with two modules 211 for demodula...
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JP3806652B2 |
To provide a noise filter in which a low cost and small size component can be used as a noise filter element to be inserted into a plurality of signal (data communication) lines. An inductor 21 made of a ferrite is used for the signal li...
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JP3798770B2 |
To provide an information processing apparatus capable of avoiding the deterioration of communication quality caused by an interference resultant from the information processing apparatus by suppressing the occurrence of an interference ...
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JP3799561B2 |
To make it unnecessary to identify the leading of a signal and to unnecessitate any header or the like for that by decoding a signal based on the mean value by each sample value in the same timing of plural frame length, and detecting a ...
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JP3798771B2 |
To provide a radio communication device which eliminates the influence of noise from an information processing apparatus by a mechanism in the radio communication device. When using a card type radio communication device 902 as a unit, a...
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JP3796721B2 |
A phased array spread spectrum system for maximizing signal strength of a spread-spectrum signal with multipath through the use of a first RF/IF section 21, a second RF/IF section 22, a first digital delay device 27, a second digital del...
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JP3796921B2 |
To allow radio communication equipment utilizing an industrial, scientific and medical course ISM band to be free from an impairing signal synchronously with a commercial power supply due to a microwave heater or the like. An impairing s...
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JP3790551B2 |
Power control in a spread spectrum communication system takes place by determining a speed of a remote unit (405) and assigning as a power-control threshold a target threshold based on the determined speed (410). An instantaneous thresho...
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JP3788303B2 |
To provide a tuner that can prevent a reference frequency signal acting as a disturbance wave from superimposing on a local oscillation signal. The tuner 10 is provided with an input terminal 1, 1st-4th band pass filters 2a-2d, an automa...
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JP3787040B2 |
To enhance accuracy of eliminating a sneak-in path signal and to reduce the cost of a sneak-in path canceller by relaxing requirements of an AFC circuit, an APC circuit and an AGC circuit for a sneak-in path canceller or accurately obtai...
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JP2006135438A |
To provide a technique of reducing digital noise when a digital circuit is in operation in a system wherein an analog circuit and the digital circuit are integrated on one and same semiconductor substrate.The system is configured such th...
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JPWO2004062220A1 |
The receiver includes a noise reduction circuit that removes noise from the differential signal transmitted on the differential transmission line, and a data reproduction circuit that reproduces data from the differential signal output f...
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JP3776871B2 |
To provide an EMI countermeasure circuit that has large reduction effect on a disturbing wave and can reduce influence on a clock transmitted through a clock wiring and adjust the reduction effect on the disturbing wave according to the ...
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JP3776872B2 |
To solve the problem that a communication environment is deteriorated since a wireless LAN base station and a noise source are installed adjacently in the same chamber in a wireless LAN system or the like. The LAN base station has: an an...
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JP3774233B2 |
A time-duplex wireless telephone for reducing magnetic coupling between the wireless telephone and a hearing aid to prevent hum pick-up in the hearing aid. The wireless telephone includes a battery, a radio circuit, and a humbucking coil...
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JP2006115402A |
To provide an adaptive common mode noise eliminating device for a communication line for eliminating common mode noises in a wide frequency range on a communication line.The adaptive common mode noise eliminating device 1 for a communica...
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JP3766876B2 |
To effectively remove false signal components composed of zero-shift components from original signals containing the false signal components. At the time of deriving original signals to be integrated by integrating original signals with ...
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JP2006101430A |
To provide a communication device for vehicle in which ringing generation can be prevented with a simple configuration.There is provided the communication device for vehicle in which an ECU1 as a transmission side and an ECU2 as a recept...
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JP3759685B2 |
To provide a device for judging a noise section which can judge the noise section accurately by enhancing the first judgment accuracy of the noise section by judging a section of before N frame from a parameter for delay judgment as eith...
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JP2006510247A |
A cascadable AGC amplifier in a signal distribution system includes a low noise cascadable amplifier having a through path and a cascadable output. The cascadable amplifier is also configured to provide AGC over a predetermined input pow...
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JP2006080741A |
To provide a networked home appliance and communication device capable of performing wireless communication stably by lessening impact of interference on communication.The networked home appliance 200 comprises a wireless section 201 for...
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JP2006508531A |
Sub-circuits of an integrated circuit can act as noise sources on common conductors such as power supply lines and the substrate. Each of these conductors may act as a noise medium capable of transferring noise signals from the noise sou...
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JP2006050511A |
To provide a protection circuit against an interfering electromagnetic wave or an interfering signal which excludes an malfunction by an interfering wave and its influence.By identically or approximately uniting an interfering electromag...
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JP2006042437A |
To attenuate various noises over a wide range, effectively protect a load apparatus against a malfunctions/damages due to noise, and efficiently implement a work for noise countermeasures.An external noise rejecting unit 1 is provided an...
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JP3737770B2 |
To provide a radio that can prevent variation in a DC offset from being generated at the baseband processing section of a reception section by a direct conversion system. The radio packages the reception section 3, a transmission section...
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JP3738479B2 |
To improve the data transmission efficiency of a multicarrier transmission system and to prevent the power loss of the system by setting the power of each subchannel proportionally to an SNR value. A multicarrier transmission system is c...
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JP2006501741A |
A method for mixed analog digital designs protecting the frequencies that are important for the analog part. The generated digital data stream has relatively large signal levels compared to the sensitive analog parts. The data bit stream...
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JP2006501742A |
A switched-mode control circuit ( 1 ) for a switched-mode power supply or an audio amplifier. It comprises a monitoring loop ( 3 ) for the output signal of the switched-mode circuit ( 2 ). A tuner ( 7 ) supplies the reference signal, whi...
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JP3734404B2 |
To provide a receiver having stable receiving sensitivity by restraining radio wave radiation or radio wave absorption in a wire harness by adjacently fixing the wire harness passing through the vicinity of the receiver to electric earth...
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JP3731619B2 |
To avoid the further voltage drop of a battery voltage during a transmission period concerning a time-division multiple access(TDMA) system portable telephone. In the TDMA system portable telephone, the PWM drive of backlight of a liquid...
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JP2006005957A |
To reduce as much as possible electrical power consumption for each of a plurality of transmitting and receiving stations constituting a spread spectrum communications system, especially the consumption of mobile subscriber station units...
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JP2005348338A |
To decide the situation of radio interference to a terminal device during communication between an AP in a wireless LAN and an STA utilizing the AP.The STA 23 which communicates with an access point, comprises an FCS error detection sect...
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JP2005341581A |
To provide a method and a tester module for quickly measuring an adjacent channel leakage ratio.A received intermediate frequency signal is converted into a baseband signal 21. Nonuniformity of an amplitude and a phase of the baseband si...
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JP3721456B2 |
To provide a noise suppressing device which is small-sized and effective. In a power generation system and an electric motor driving system wherein a power line communication device having a transmission line between a power line and the...
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JP2005328425A |
To provide a portable telephone with a camera which can reduce interference between a high frequency component generated by the camera and receiving frequency band carrying out radio communication.The portable telephone is provided with ...
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