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WO/1992/009122A2 |
A cable assembly (100) capable of electromagnetic interference suppression, includes a cable strain relief (106), a tubular electromagnetic interference suppressor (110) located within the strain relief (106), both of which are disposed ...
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WO/1992/007442A1 |
A co-channel interference reduction system for digital high definition television includes a transmitter having a modulo 4 processing precode filter. A receiver includes a pair of selectable video processing modes. The first mode provide...
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WO/1992/004760A1 |
A motor-operated pump includes an electrical filter that includes an inductance and a capacitance mounted within the pump housing. The filter components are thereby shielded against possible damage during initial installation, or during ...
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WO/1991/015939A1 |
An electromagnetic shield (10) for absorbing electromagnetic energy generated by a circuit disposed upon a circuit board (32). The shield (10) is comprised of a thermally conductive material to further provide heat-sink capabilities. Cli...
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WO/1991/015925A1 |
A low power OFDM signal may be transmitted in an environment where it is subject to interference from other transmissions, e.g. broadcast television services. In a receiver interference is reduced by ignoring information modulating OFDM ...
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WO/1991/013430A1 |
A method is disclosed for use in preprocessing noisy speech to minimize likelihood of error in estimation for use in a recognizer. The computationally-feasible technique, herein called Minimum-Mean-Log-Spectral-Distance (MMLSD) estimatio...
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WO/1991/013370A1 |
The figure shows a transmitter (10), where an oscillator (12) generates a base frequency of 100 kHz to be fed into a divide-by-four unit (14). The divide-by-four unit (14) produces a 25 kHz output signal to be fed into the regulated powe...
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WO/1990/014710A1 |
A modulated clock signal (28) is provided to a logic circuit that may include a microprocessor, microcontroller or digital signal processor (10). Modulating the clock signal spreads the energy spectrum of the clock signal so as to reduce...
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WO/1990/010980A1 |
A time domain communications system (10, 96) wherein time modulated (220), impulse derived signals are multiplied (226) by a template signal (234), integrated (248), and then demodulated (254, 258, 260). By this process, usable signals (...
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WO/1990/002477A1 |
A system and method for its implementation for suppressing RFI effects on an electronic control module (10) enclosed in a metal housing (12) includes inserting a plurality of high frequency shunts (16, 26) in the wires (14) attached to t...
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WO/1990/000839A1 |
A process and device for suppressing interferences by microprocessor circuits reduce the amplitude of the interference signals emitted by the processor circuit. When such microprocessor circuits are used in motor vehicles, radio receptio...
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WO/1989/007373A1 |
An electronic appliance comprises a signal-emitting circuit part (1) and a signal-processing circuit part (4), at least one external line for supplying the signal processing part (4) with operating current and/or at least one signal line...
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WO/1989/006875A1 |
An end cap (10) for a fuel pump provides suppression of radio frequency noise generated by the motor of the pump. The unitary end cap (10) includes radio frequency suppression circuitry (20, 28) disposed therewithin and is configured so ...
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WO/1989/003141A1 |
An improved noise suppression system (800) is disclosed which performs speech quantity enhancement upon the speech-plus-noise signal available at the input (205) to generate a clean speech signal at the output (265) by spectral gain modi...
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WO/1988/003306A1 |
An apparatus for eliminating noise/hum in a signal includes an attenuating circuit (13) connected between a signal input (11) and a signal output (12), and further includes a linear filter circuit (15) and a detector (14) connected in se...
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WO/1988/002201A1 |
A system for companding digital audio signal samples processes the digital audio signal samples to correct errors induced by the compression and expansion processes. These errors are calculated prior to compressing the samples. The error...
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WO/1988/000779A1 |
A data communcations system has a plurality of terminals (12) linked to a star coupler (16) over channels (14) having separate sending and receiving transmission lines, and a cable shield (20) connected to system ground. To minimize bit ...
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WO/1987/007792A1 |
Device to protect against interference signals, intended for an electric circuit (13) and particularly suited for integration and especially to provide protection against pulsed interference at the inputs of integrated electrical circuit...
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WO/1987/002840A1 |
Circuit for suppressing interference from electricity users, the mean electrical power of which can be modified by phase control. Simple interference suppression can be achieved by connecting the earth (17) of the electrical equipment, a...
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WO/1987/002532A1 |
A switching type power supply includes neutralizing circuitry to counteract current flow to equipment ground due to generated RF currents. This neutralizing circuitry includes an added transformer winding (136) and a neutralizing capacit...
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WO/1986/007223A1 |
A high speed modem (26) that transmits and receives digital data on an ensemble of carrier frequencies spanning the usable band of a dial-up telephone line (48). The modem includes a system (30, 32, 34, 36, 40, 43, 44) for variably alloc...
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WO/1986/003354A1 |
An arrangement for eliminating signal hum has connected in series an addition circuit (12), a delay circuit (13), an amplifier (19) and a subtraction circuit (14). Connected in parallel with the delay circuit (13) is a feedback loop havi...
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WO/1985/004006A1 |
Styluses (14) are scanned across the width of a roll of electrosensitive paper (10) and are selectively energized to vaporize small area on the paper's coating (13) to thereby form characters (26). When the coating vaporizes, a spark is ...
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WO/1983/001879A1 |
Weighted sums of samples of an interference-corrupted data signal (Yk) are generated by a phase compensator (40) to form phase-compensated, symbol-spaced samples (Um). The interference-corrupted signal (Yk) is at the same time subjected ...
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JP7468253B2 |
To provide a technique for automatically reducing the suppression of reception sensitivity due to harmonic interference.The frequency oscillated by an oscillation circuit 18 is modulated within the band of a loop filter 52. The oscillati...
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JP2023148652A |
To provide a communication control device that can perform good and efficient wireless communication in a situation where noise is generated by a device that is a noise source such as a motor.A communication control device according to a...
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JP2023540607A |
An interference prevention control device and method thereof, a terminal device, and a computer-readable storage medium are provided. The interference prevention control device is connected to a millimeter-wave antenna module, and determ...
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JP7322973B2 |
An electronic circuit includes a shield line including first and second signal lines and a shield. The first and second signal lines are connected to a signal source, and the shield coating is around the first and second signal lines. Th...
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JP7322163B2 |
Systems and methods for determining vehicle operational status in accordance with embodiments of the invention are disclosed. In one embodiment, a vehicle event detection device includes a low pass filter configured to sense a vehicle vo...
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JP7227662B1 |
The present invention improves electromagnetic interference (EMI). In a minimum frequency designing step 71, a minimum frequency f of noise to be reduced by an electromagnetic interference reduction device is set. In a transmission line ...
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JP2023024167A |
To provide a technique for automatically reducing reception sensitivity suppression due to harmonic interference.A first mixer 28a and a second mixer 28b quadrature-detect a received signal using a local signal. The first mixer 36a and t...
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JP7203345B2 |
To provide electrical equipment and a power distribution board capable of reducing an influence of noise emitted from a noise generating source even in a case where a harness is provided on a substrate that has the noise generating sourc...
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JP7193510B2 |
A circuit pattern of a power line and a circuit pattern of a signal line are disposed in a first layer 10a of a laminated circuit board device 10, a circuit pattern of the signal line to be protected is disposed in a second layer 10b, an...
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JP2022181530A |
To efficiently reduce both conduction noise and radiation noise with a small number of noise countermeasure components.An image forming apparatus 100 comprises: an AC/DC converter 101; an AC filter 102; a ferrite core 110; two conductive...
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JP2022152839A |
To provide a vehicle or the like capable of improving communication quality of an emergency report signal.According to one embodiment of the disclosure, a vehicle includes a battery for accumulating power supplied from an external charge...
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JP2022149255A |
To suppress fluctuations in a voltage applied to a laser diode in a transmission interface and a transmission device.A transmission interface 10 according to the present invention includes a plurality of transmitters 101_1 to 101_N, and ...
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JP7128026B2 |
To provide a 10 MHz reference signal selection circuit capable of obtaining high isolation, having low pass loss, and requiring no amplifier for adjusting an input level.The reference signal selection circuit including a plurality of sin...
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JP2022116968A |
To simply and inexpensively reduce electromagnetic induction to communication cable along an electric railway due to a magnetic field generated from a vehicle side in the electric railway.An electromagnetic induction countermeasure syste...
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JP7096346B2 |
A system for self-interference cancellation includes a frequency downconverter that decomposes a sampled RF transmit signal into an in-phase transmit signal and a quadrature transmit signal; a first analog vector modulator that scales th...
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JP7067855B2 |
To prevent, at the weakened proof stress to an interference wave from an adjacent channel in a radio band, the deterioration of radio transmission quality and the reduction of a transmission capacity if, as a measure, a modulation method...
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JP2022063725A |
To obtain a reference signal selection circuit capable of suppressing the effect of noise components included in an input signal and enabling the pulse width of a restored reference signal to meet specifications.The reference signal sele...
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JP7029040B2 |
Remote inductive sensing uses a sensor resonator with a remote sense inductor coupled to a resonator capacitor through a shielded transmission line. The T-line includes a signal line and a shield return line: the sense inductor is connec...
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JP2022021322A |
To provide a DC filter device, and an arrangement and configuration thereof.A DC filter device includes: a first filter device connection 61A; a second filter device connection 62A; a third filter device connection 61B; a fourth filter d...
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JP6973979B2 |
An emission protection device including a signal generating unit to generate, for at least one electrical signal relayed by at least one conductor to a load, with which the load is switchable and/or energize-able, at least one electrical...
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JP6949582B2 |
To suppress the influence of radio wave interference without increasing a delay time, by making channel changeover be unnecessary even under an environment in which spatial restriction or restriction on available frequency resources is s...
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JP2021141557A |
To contribute to the improvement of a communication environment and a reception environment of radio and television by providing a device that reduces the influence of jamming, etc.According to settings of a computer built into a radio c...
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JP6914471B2 |
The present invention is a signal transmission circuit 100 comprising a band rejection filter (BRF) (22) and an electromagnetic bandgap (EBG) structure (21), wherein the signal transmission circuit comprises a signal path (12) for transm...
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JP6878799B2 |
To provide a technique for suppressing decrease in the S/N ratio of radiocommunication due to switching noise generated in a switching power supply.A switching frequency setting unit 12 sets the switching frequency of a switching power s...
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JP6762955B2 |
Aspects of the disclosure are directed to interference cancellation. A method of performing interference cancellation in a wireless device having a receiver, a coefficient controller and an analog interference cancellation (AIC) circuit ...
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JP2020120155A |
To provide a ground structure capable of taking measures against noise even when a resin housing is used.A ground structure 32 includes: a plurality of substrates 24, disposed inside a housing 20, spaced apart from each other, and extend...
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