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49results about How to "Enhance received signal" patented technology
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Automatic gain control circuit
InactiveUS20090124227A1Lower Level RequirementsEnhance received signalRadio transmissionUltrasound attenuationAutomatic gain controller
A first signal path including a first LNA 3 and a second signal path including an antenna damping circuit 4 and a second LNA 5 are connected in parallel, and switching into either the first signal path or the second signal path is carried out to control a gain of a received signal. When a level of the received signal is higher than a first threshold, it is once attenuated by the antenna damping circuit 4 and is then amplified by a necessary quantity through the second LNA 5. Thus, the gain of the received signal is controlled in a total of the attenuation and the amplification. Consequently, a level of a signal to be input to the second LNA 5 is reduced to cause a distortion of the signal in the amplification with difficulty.
Owner:NSC CO LTD
Systems and methods for far-end noise reduction and near-end noise compensation in a mixed time-frequency domain compander to improve signal quality in communications systems
InactiveUS20040101038A1Improve clarityReduce inconvenienceTwo-way loud-speaking telephone systemsFrequency-modulated carrier systemsTime domainCommunications system
Methods and systems for a mixed time-frequency domain compander, where the expander and compressor are applied in the frequency domain (subbands), while the limiter and the linear gain are applied in the time-domain (full band). Far-end noise reduction is achieved by adapting the expander gain to the far-end noise, near-end noise compensation is achieved by adapting the linear gain and the compressor gain to the near-end noise. The range of the linear gain section is set individually for each subband, but the linear gain is essentially applied to the full band signal via a scaling procedure. The scaling procedure first reduces the compander gain in the frequency domain by a scaling factor and then performs the reciprocal reverse scaling in the time domain. Far-end noise reduction is coupled to near-end noise compensation in order to avoid cross-modulation of the far-end noise by the near-end noise.
Owner:LUCENT TECH INC
Antenna device and mobile communication terminal
ActiveUS20120176282A1High gainImprove communication distanceNear-field transmissionAntenna supports/mountingsConductor CoilElectrical and Electronics engineering
An antenna device includes a feeding member including a coil pattern and an emitting member to emit a transmit signal supplied from the feeding member and to receive a receive signal and supplying it to the feeding member. The emitting member includes an opening portion and a slit portion communicating with the opening portion. When seen in plan view from the direction of the winding axis of the coil pattern, the opening portion of the emitting member and the inner region of the coil pattern overlap each other, and the emitting member and the coil pattern overlap each other at least partially.
Owner:MURATA MFG CO LTD
Laser scanner
ActiveUS9477007B2Avoid problemsEnhance received signalOptical detectionElectromagnetic wave reradiationParallel polarizationLight beam
A laser scanner, in particular a safety laser scanner, in accordance with the operating principle of the time of flight process, comprising a light transmission unit having at least one light transmitter for transmitting a polarized transmitted light beam into a monitored zone; a light reception unit having at least one light receiver for detecting the polarization component of the light reflected in the monitored zone being orthogonal to the polarization direction of the transmitted light beam, and / or the polarization component of the light reflected in the monitored zone being parallel to the polarization direction of the transmitted light beam, and for generating a received signal corresponding to the detected orthogonal polarization component and / or the detected parallel polarization component; and an evaluation unit configured to evaluate the time development of the detected orthogonal polarization component and / or of the detected parallel polarization component.
Owner:SICK AG
Optical system for laser range finder
ActiveUS20050206872A1Receive interferenceImprove light energy efficiencyWave based measurement systemsOptical rangefindersLaser transmitterLaser ranging
An optical system for a laser range finder comprises a laser emitter (5), a collimating lens (4) positioned in front of the laser emitter an optical receiver (3), a light receiving aspheric lens (1) for converging reflected light from a target object to be measured on the optical receiver, and a polygonal prism (2) disposed between the light receiving aspheric lens and the optical receiver. The light receiving aspheric lens defines a cutout in a position corresponding to a laser light beam emitted by the laser emitter for allowing passage of the laser light beam therethrough. The polygonal prism consists of a first portion and a second portion refracting the reflected light at different refraction angles for light path compensating purposes.
Owner:ASIA OPTICAL INT LTD
Method for determining hybrid domain compensation parameters for analog loss in OFDM communication systems and compensating for the same
InactiveUS20110206105A1Reduce error rateLower error rateMultiple-port networksDelay line applicationsDistortionCarrier signal
In a transmit / receive system, the carrier frequency offset (CFO), I / Q imbalance, and DC offset (DCO) can cause serious signal distortions. These analog losses can be compensated for individually or in combination of any two of them by following various methods that have been suggested. However, there have suggested no methods of simultaneously compensating, for these three types of losses that occur in actual devices at the same time. The present invention suggests a novel pilot signal that has a cyclic signal portion and a portion of two equally spaced continual signals. The invention provides a method for compensating for the CFO, I / Q imbalance, and DCO by simultaneously performing the time domain compensation and the channel estimation using those signal portions. The method also compensates for the I / Q imbalance and the channel response on the transmitter side in the OFDM scheme.
Owner:OSAKA PREFECTURE UNIV PUBLIC CORP
Subject information obtaining apparatus and subject information obtaining method
InactiveUS20140155741A1Improve signal-to-noise ratioShorten reception signal obtaining periodMaterial analysis using sonic/ultrasonic/infrasonic wavesMaterial analysis by optical meansLight irradiationEngineering
A subject information obtaining apparatus includes a probe including a receiver that receives an acoustic wave to be converted to an electric signal and first and second irradiation units that irradiate mutually different areas on a subject surface with pulsed light, a control unit that controls illumination positions of the pulsed light to avoid continuous irradiation of the subject with the pulsed light from the first and second irradiation units, and a signal processing unit that performs averaging or integrating of electric signals derived from the pulsed light illuminated from the first and second irradiation units and obtains a characteristic distribution in the subject by using the averaged or integrated signal or performs combining of distributions obtained by using electric signals derived from the pulsed light illuminated from the first and second irradiation units and obtains a combined distribution as the characteristic distribution in the subject.
Owner:CANON KK
Ultrasound transducer assembly
InactiveUS20160296207A1Low technical effortReduce feature sizeUltrasonic/sonic/infrasonic diagnosticsMechanical vibrations separationPhysicsIntegrated circuit
An ultrasound transducer assembly (50), in particular for ultrasound imaging systems (10), is disclosed, comprising a transducer array (52) including a plurality of transducer elements (54) for emitting and receiving ultrasound waves (56). Each of the transducer elements (54) includes a first electrode (66) connected to a flexible membrane (64) and a second electrode (70). The assembly further comprises an integrated circuit device (60) connected to the transducer array (52) for driving the transducer elements (54), wherein the first electrodes (66) are electrically connected to each other and coupled to the integrated circuit device (60) for providing an alternating drive voltage to each of the transducer elements (54), wherein the second electrodes (70) are connected to a voltage supply for providing a bias voltage to the transducer elements (54), and wherein the first electrodes (66) are each connected by means of a via (76) to the integrated circuit device (60) and the vias (76) are fed through the second electrodes (70).
Owner:KONINKLJIJKE PHILIPS NV
Enhancing Receiver Intelligibility in Voice Communication Devices
InactiveUS20100169082A1Improve intelligibilityEnhance received signalSpeech analysisFrequency spectrumVoice communication
The intelligibility of speech signals is improved in the many situations where a voice signal is communicated or stored. Means and methods are disclosed for developing a scheme with high voice signal intelligibility without sacrificing the voice quality. The disclosed method comprises certain steps, including, but not limited to: Learning the noise on near-end side and enhancing the far-end voice as a function of the noise type and noise level on the near-end side. The disclosed method and apparatus are especially useful to increase the intelligibility of the communication device's loudspeaker output. The invention includes processing of an input speech signal to generate an enhanced intelligent signal. The FFT spectrum of the speech received from the far-end is modified in accordance with the LPC spectrum of the local background noise to generate an enhanced intelligent signal.
Owner:NOISE FREE WIRELESS
Underwater laser line scanning digital imaging system
ActiveCN103792543AIncreased energy transferEnhance received signalElectromagnetic wave reradiationLaser lineLow noise
The invention discloses an underwater laser line scanning digital imaging system which comprises an upper computer module (8), a cylindrical pressure resistant shell (9), a laser module (1), an optical-mechanical-electrical scanning module and a digitization camera shooting module, wherein the laser module (1), the optical-mechanical-electrical scanning module and the digitization camera shooting module are installed inside the shell (9). The laser module (1) comprises a solid-state frequency doubling laser device, an optical focusing system and a laser control system. The optical-mechanical-electrical scanning module comprises an input reflecting mirror (2), an optical subsystem (3) and an output reflecting mirror (4), wherein the optical subsystem (3) comprises an optical trigger, a motor and a rotary shaft driven by the motor. The digitization camera shooting module comprises an incident hole (5), a receiving machine (6), a low-noise pre-amplifier and a video processing system (7). The upper computer module (8) comprises a keyboard, a mouse and a video monitor. According to the underwater laser line scanning digital imaging system, back scattering influences in absorption and scanning water space can be reduced to the maximum degree, and a high-resolution image can be provided.
Owner:NANJING HEHAI TECH
Connection system and an ultrasound system comprising said connection system
InactiveUS20160007958A1Easily mechanically connect and disconnectEnhance received signalEngagement/disengagement of coupling partsUltrasonic/sonic/infrasonic diagnosticsMechanical engineeringElectrical contacts
A connection system for connecting a probe to an electronic device, comprising a first element (11) attached to the electronic device, a second element (12) attached to the probe, an activation device (14), and a third element (13) that can be moved by the activation device (14) relative to the first element (11) between an activated position and an inactivated position for establishing or not electrical contacts. The second element (12) can be locked or released to the third element (13) by a fixation mechanism (15). The third element (13) can be moved by the activation device (14) between the activated position and the inactivated position, the second element being locked to or released from the third element (13).
Owner:SUPER SONIC IMAGINE
High-frequency front end circuit
InactiveUS20160254828A1Enhance received signalImprove signal-to-noise ratioNetwork topologiesDuplex signal operationFrequency bandUltrasound attenuation
An antenna of a high-frequency front end circuit is connected to a duplexer and a filter. A reception-side filter of the duplexer is connected to a first reception signal output terminal. The filter is connected to the ground with a terminating resistor interposed there between. The reception-side filter is a filter which has a pass band including a frequency range of a reception signal having a first frequency band. The filter is a filter which has a pass band including a frequency range of a communication signal having a second frequency band and which has an attenuation range including the frequency range of the reception signal having the first frequency band.
Owner:MURATA MFG CO LTD
Receiver unit and receiving method
ActiveUS20160261438A1Accurate receptionEasy to detectTransmitter/receiver shaping networksComputer science
A receiver unit comprising a signal input configured to receive a receive signal including a plurality of data symbols, a symbol detection circuit configured to detect a subset of data symbols, a reliability measuring circuit configured to determine a reliability value for the data symbols, a feedback loop configured to detect the subset of data symbols and the reliability value iteratively, and a signal output circuitry configured to determine output values of the subset of data symbols on the basis of the detected subset of data symbols and the determined reliability value.
Owner:SONY CORP
RFID tag system and RFID reader/writer
ActiveUS20130241702A1Enhance S/N ratioEnhance received signalSubscribers indirect connectionElectrically short antennasNull pointRadio wave
An aspect of the present invention provides an RFID tag system in which a null point is hardly generated. The RFID tag system includes an RFID tag and an RFID reader / writer. The RFID reader / writer includes a transmitter that transmits a circularly-polarized radio wave to the RFID tag, a receiver that separately receives horizontal and vertical polarization components of a return wave from the RFID tag; and a received signal combiner that logically combines signals separately received by the receiver. The received signal combiner includes an optimum combiner that combines the horizontal polarization component and the vertical polarization component such that an S / N ratio of the received signal is enhanced compared with the case that the horizontal polarization component and the vertical polarization component are separately received.
Owner:ORMON CORP
Multi-domain wireless broadcast multicast loudspeaker based on Internet control
InactiveCN114449385AAvoid enteringAvoid affecting heat dissipationLoudspeaker transducer fixingElectrostatic separationWireless broadcastThe Internet
The invention provides a multi-domain wireless broadcast multicast loudspeaker based on internet control, which comprises a fixed base, a fixed frame is fixedly mounted on the upper side of the fixed base, a main body is fixedly mounted on the upper side of the fixed frame, a mounting part is fixedly mounted on the right side of the main body, a loudspeaker part is fixedly mounted on the right side of the mounting part, and a loudspeaker is fixedly mounted on the right side of the loudspeaker part. A driving power supply is arranged in the main body, and a loudspeaking mechanism is arranged in the mounting part. According to the multi-domain wireless broadcast multicast loudspeaker based on Internet control, an electrostatic adsorption plate is arranged, a friction ball and a friction plate are driven by a fixing rod to continuously rub, then static electricity is generated on the electrostatic adsorption plate, and when air passes through the electrostatic adsorption plate, the generated static electricity can adsorb dust in the air, so that the dust in the air is adsorbed, and the dust in the air is prevented from being adsorbed. Therefore, dust is prevented from entering the interior of the device, the situation that heat dissipation of the device is affected by too much dust is effectively prevented, and the service life of the device is prolonged.
Owner:宿迁村村响广播设备有限公司
Antenna switching method, device and equipment and computer readable storage medium
InactiveCN110557182AEnhance received signalImprove experienceSpatial transmit diversitySignal qualityEngineering
The invention discloses an antenna switching method, device and equipment, and a computer readable storage medium, and belongs to the technical field of communication. The method comprises the steps of obtaining signal quality and an electromagnetic wave absorption ratio of two antennas; detecting the signal quality of the first antenna, the signal quality of the second antenna and a preset signalquality threshold; when the signal quality of the first antenna and the signal quality of the second antenna are both greater than a preset signal quality threshold, selecting the antenna with a smaller electromagnetic wave absorption ratio as a working antenna; when one of the signal quality of the first antenna and the signal quality of the second antenna is smaller than a preset signal qualitythreshold, selecting the antenna with higher signal quality as a working antenna; by detecting and comparing the current signal receiving quality of the two or more antennas with the SAR value, carrying out switching, so that the terminal works on the antenna with better signal quality and smaller SAR value, the harm to a human body is avoided, the received signal of the terminal is improved, anda user has better user experience.
Owner:ZTE CORP
Space-time block coding system combined with local polynomial approximation based beamformer
InactiveUS7555050B2Reduce probabilityImprove accuracyPolarisation/directional diversitySecret communicationMobile antennasSpace time block coded
Provided is an STBC transceiving system with LPA-based beamformer, including: an STBC encoder having branches, in number of D, to generate output signals in number of D for an input signal; a beamformer having output antennas in number of D*B, being comprised of beam-forming subarrays in number of D each having the output antennas in number of B to form a downlink beam from the D-numbered output signals of the STBC encoder; and an STBC decoder restoring an original signal by dividing a signal, which is received as one with signals transmitted through a mobile antenna from the D-numbered beam-forming subarrays, into signals in number of D in accordance with the subarrays in consideration of channel characteristics.
Owner:GWANGJU INST OF SCI & TECH
System for Determining a Relative Position and/or a Relative Distance of a Transmitter with Respect to a Receiver, and Inductive Vehicle Charging System Having Such a System
PendingUS20210261007A1Increase signal strengthPrevents electrical overloadCharging stationsPosition fixationWireless transmissionTransmitter
A system for determining a relative position and / or a relative distance of a transmitter with respect to a receiver, including: the transmitter for wirelessly emitting signals at the time ti, the receiver or receiving a signal at the time ti+Δt, wherein the receiver is configured to determine the following: a signal level P and / or a signal-to-noise ratio SNR of the received signal, a direction of incidence of the received signal and, on the basis of P and E, a relative position POS of the transmitter with respect to the receiver and / or a relative distance D between the transmitter and the receiver, and another transmitter connected to the receiver and intended to wirelessly transmit P, SNR, POS, and / or D to another receiver connected to the transmitter.
Owner:BRUSA ELECTRONICS AG
Lateral logger
InactiveCN103527183AEliminate mutual inductanceEnhance received signalBorehole/well accessoriesEngineeringPressure balance
A lateral logger comprises an electronic instrument circuit sub, a 64-core connector, a pre-amplifier circuit sub, a dual-induction coil system, an 8-lateral electrode, a pressure balance bag and a battery. The lateral logger has the advantages that received signals are enhanced, signal-to-noise ratio is increased, power consumption of the logger is reduced, temperature performance, sensitivity, stability and measurement accuracy of the logger are improved greatly, and the lateral logger is suitable for data measurement in detection of formation conductivity of open hole wells.
Owner:SHAANXI HI-TECH IND CO LTD
Motion powered pet tracker system and method
PendingCN111684309AEnhance received signalReduce frequencyBatteries circuit arrangementsElectric powerPhysical medicine and rehabilitationPhysical therapy
A pet tracking device, system and method using a kinetic motion energy generator to generate electrical energy that is used to power a pet tracking mechanism are provided. The pet tracking device mayinclude a housing on a wearable item, such as a collar, attached to the pet or may be injected underneath the skin of the pet.
Owner:TRUPANION
Method and system for receiving radio stations
ActiveUS20120300880A1Enhanced signalEasy to combineSpatial transmit diversityModulated-carrier systemsEngineeringDemodulation
A system for receiving radio stations includes: at least one A / D converter in order to digitize the entire desired frequency band, for instance, an FM band, received via at least one antenna, and a demodulation unit for demodulating at least two signals of different transmitting frequencies of a radio station.
Owner:ROBERT BOSCH GMBH
Signal amplifying apparatus and method
InactiveUS20060148436A1Enhance received signalTelevision system detailsGain controlEngineeringRadio frequency
A signal amplifying apparatus and method selectively amplify a received signal according to the strength of the received signal. The signal amplifying apparatus includes a signal receiving unit for outputting a state signal according to a state of a received radio frequency (RF) signal, an amplifying unit for amplifying the received RF signal and a control unit for determining whether to operate the amplifying unit according to the output state signal.
Owner:SAMSUNG ELECTRONICS CO LTD
Measurement and imaging instruments and beamforming method
PendingUS20210389439A1Improve accuracyMore measurement accuracyUltrasonic/sonic/infrasonic diagnosticsInfrasonic diagnosticsAnalytic signalAcoustics
A measurement and imaging instrument capable of beamforming with high speed and high accuracy without approximate calculation. The instrument includes a reception unit which receives a wave arriving from a measurement object to generate a reception signal; and an instrument main body which performs a lateral modulation while superposing two waves in a two-dimensional case and three or four waves in a three-dimensional case in beamforming processing of the reception signal in which at least one wave arriving from the measurement object is processed as being transmitted or received in the axial direction or directions symmetric with respect to the axial direction to generate a multi-dimensional reception signal, performs Hilbert transform with respect to the multi-dimensional reception signal, and performs partial derivative processing or one-dimensional Fourier transform to generate analytic signals of the multi-dimensional reception signals of the two waves or the three or four waves.
Owner:SUMI CHIKAYOSHI
Device for improving installation efficiency of external liquid level meter and application method thereof
ActiveCN101813506AImprove vibration signal transmission efficiencyEnhance received signalMachines/enginesLevel indicatorsEngineeringExternal Liquid
The invention discloses a device for improving the installation efficiency of an external liquid level meter and an application method thereof. The method comprises the following steps: (1) arranging a mounting plane on the outer side of the bottom wall of a container on which a measuring head is arranged; (2) fixing a measuring head mounting seat on the mounting plane; (3) arranging the measuring head on the measuring head mounting seat on the mounting plane and closely matching the measuring end face of the measuring head with the mounting plane; (4) arranging a self-cleaning device on the inner side of the bottom wall of the container corresponding to the mounting plane and making the self-cleaning device vertical to the inner side of the bottom wall of the container; and (5) arranging a waveguide and keeping the central line of the waveguide concentric with the central line of the measuring head. The device has the advantages of improving vibration signal transmission efficiency between the measuring head and the bottom wall of the container, shorting installation time and improving installation efficiency, automatically cleaning the inner side of the bottom wall of the container opposite to the measuring head and preventing the deposition of deposit from affecting signal transmission and preventing liquid level from fluctuating severely when liquid flows inwards by using the waveguide.
Owner:XIAN DINGHUA ELECTRONICS CO LTD
Communication system
InactiveUS7154954B1Enhance received signalIncrease speedMultiple-port networksPulse automatic controlAc componentsCommunications system
A communication system in which a reception signal can be accurately obtained from a signal transmitted over two-wire type transmission lines without any significant reduction in the communication speed. The communication system utilizing two-wire type transmission lines for transmitting transmission signals in opposite phases has a plurality of nodes connected to the two-wire type transmission lines, and each of the nodes incorporates terminating resistors acting upon the two-wire type transmission lines. A node which includes a reception circuit for receiving a transmission signal has an AC coupling circuit for extracting AC components in a transmission signal input through the transmission lines, a bias circuit for applying a bias voltage to a signal output from the AC coupling circuit and a clip circuit for clipping the level of a signal output from the bias circuit, which are provided at each of the two-wire type transmission lines.
Owner:HONDA MOTOR CO LTD
An Array Coplanar Coil System for Measuring Vertical Conductivity of Formation
InactiveCN105332697BEliminate the effects ofSolve the real problemBorehole/well accessoriesSkin effectSystem structure
Provided is an array coplanar coil system for measuring the vertical conductivity of a stratum. A coil system structure of the array coplanar coil system is composed of eight subarrays wound around a non-conductive skeleton. Each subarray is composed of a transmitting coil and two same-direction receiving coils, wherein the normal direction of all the coils coincides with or is parallel to the x axis or the y axis, the winding direction of the two receiving coils is consistent with that of the transmitting coil, the minor receiving coil is located between the transmitting coil and the main receiving coil, the positions of the transmitting coil and the receiving coils are obtained by adopting the duality principle in a two-transmitting and one-receiving subarray structure, and the number of turns is adjusted according to the focusing degree of receiving signals. According to the coplanar coil system, the receiving signals are increased; the skin effect is reduced, negative response zones are obviously reduced, the wellbore effect is approximately linear and can be eliminated through a wellbore correction method based on a database, and therefore the vertical conductivity of the stratum can be accurately acquired.
Owner:XI'AN PETROLEUM UNIVERSITY
Antenna and electronic equipment including antenna
InactiveCN105098326AGuaranteed efficiencySmall sizeSimultaneous aerial operationsAntenna supports/mountingsComputer moduleEngineering
The invention discloses an antenna and electronic equipment including the antenna, belonging to the field of communication. Embodiments of the invention provide the antenna and the electronic equipment including the antenna. The antenna comprises a high-frequency module, a low-frequency module, a switch module, a matching module and a feed module, wherein one end of the high-frequency module is connected to the feed module, and one end of the low-frequency module is connected to the feed module; the high-frequency module and the low-frequency module are L-shaped components respectively, wherein the high-frequency module and the low-frequency module are located in a clearance area; the high-frequency module is used for receiving a high-frequency signal and the low-frequency module is used for receiving a low-frequency signal; the matching module is used for transmitting any one of the high-frequency signal and the low-frequency signal; and the switch module is used for controlling the antenna for receiving any one of the high-frequency signal and the low-frequency signal. The antenna is not only smaller in size, but switchover of the antenna between reception of the high-frequency signal and reception of the low-frequency signal is implemented, and the frequency application range of the antenna is further improved.
Owner:HOLYPAO
Architecture structure of communication tower for electronic information engineering
PendingCN113027216AAdjustable angleEnhance received signalAntenna arraysAntenna supports/mountingsLightning rodElectric machinery
The invention discloses an architecture structure of a communication tower for electronic information engineering. The architecture structure comprises a supporting mechanism, wherein an assembling mechanism is arranged at the top of the supporting mechanism. The architecture structure further comprises a fixing mechanism arranged at the top of the assembling mechanism, the fixing mechanism comprises a fixing plate, the bottom of the fixing plate is connected with the top of the assembling mechanism, a lightning rod is arranged at the center of the top of the fixing plate, and an adjusting mechanism is arranged at the top of the fixing mechanism. A fixing motor rotates to drive a fixing gear to rotate, an auxiliary motor drives a rotating rod to rotate to drive a mounting plate and a connecting plate to move, then through pushing of an electric telescopic rod and positioning of a fixing telescopic rod, and connection between an antenna body and an elastic mounting piece, the angle of a communication tower antenna can be adjusted in multiple directions, and received signals of the communication tower are increased; and through arrangement of a storage rod, a threaded rod, a moving rod, a fixing rod, a blocking rod and anti-skid protrusions, the communication tower can be fixed, and the stabilizing effect of the communication tower is improved.
Owner:杨秀奎
Method and system for receiving radio stations
ActiveUS8787856B2Enhance received signalEasy to combineSpatial transmit diversityError preventionEngineeringDemodulation
A system for receiving radio stations includes: at least one A / D converter in order to digitize the entire desired frequency band, for instance, an FM band, received via at least one antenna, and a demodulation unit for demodulating at least two signals of different transmitting frequencies of a radio station.
Owner:ROBERT BOSCH GMBH
An underwater laser line scan digital imaging system
ActiveCN103792543BIncreased energy transferEnhance received signalElectromagnetic wave reradiationLow noiseDigital imaging
Owner:NANJING HEHAI TECH
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