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113 results about "Super high frequency" patented technology

Super high frequency (SHF) is the ITU designation for radio frequencies (RF) in the range between 3 and 30 gigahertz (GHz). This band of frequencies is also known as the centimetre band or centimetre wave as the wavelengths range from one to ten centimetres. These frequencies fall within the microwave band, so radio waves with these frequencies are called microwaves. The small wavelength of microwaves allows them to be directed in narrow beams by aperture antennas such as parabolic dishes and horn antennas, so they are used for point-to-point communication and data links and for radar. This frequency range is used for most radar transmitters, wireless LANs, satellite communication, microwave radio relay links, and numerous short range terrestrial data links. They are also used for heating in industrial microwave heating, medical diathermy, microwave hyperthermy to treat cancer, and to cook food in microwave ovens.

Apparatus, a system and a method for collission avoidance

InactiveUS20110249118A1Little and no disruption in functionalityLong rangeDigital data processing detailsColor television detailsTransceiverEngineering
The invention relate to a collision avoidance apparatus (100, 200, 300, 22), system (10) and method (500). The apparatus (100, 200, 300, 22) includes a UHF (Ultra High Frequency) transceiver (102) operable to send and receive UHF signals in electric field (E-field) mode, a VLF (Very Low frequency) transceiver (104) operable to send and receive VLF signals in magnetic field (H-field) mode, and a SHF (Super High Frequency) transceiver (106) operable to send and receive SHF signals in electric field (E-field) mode. The apparatus (100, 200, 300, 22) further includes a control module (110) operable to direct the operation of the respective transceivers (102, 104, 106), thereby to detect receipt of a signal via at least one of the transceivers (102, 104, 106), and determine whether or not an alert is to be issued, based on the nature of the received signal. The apparatus (102, 104, 106) also includes an output arrangement (112) operable to issue an alert in response to instruction from the control module (110) to do so.
Owner:BECKER MINING EURO GMBH

Method for handover of terminal using multi-connection in cellular communication system

A method for handover of a terminal using a multi-connection in a cellular communication system is disclosed. The method for handover according to the present invention includes a multi-connection setting procedure of setting a connection to a second base station in addition to a connection to a first base station according to movement of a terminal in a direction from the first base station to the second base station, and a connection release procedure of releasing the connection to the first base station. Specifically, the present invention may be applied in a multi-beam management environment of super high frequency (SHF) and extremely high frequency (EHF) bandwidths, and may obtain an effect of decreasing signaling overhead and process latency of a conventional handover method.
Owner:ELECTRONICS & TELECOMM RES INST

Q-quenching super-regenerative receiver

A super-regenerative receiver uses controlled Q-quenching and may limit the resonant tank circuit amplitude by loading the tank circuit as soon as regenerative oscillation is detected. An amplitude detector is coupled to the regenerative amplifier and controls a Q loading circuit coupled to the tank circuit of the regenerative amplifier. The amplitude detector turns on the Q loading circuit which then stops the regenerative amplifier from oscillating, and the Q-loading remains on for a brief time to insure that the regenerative amplifier has stopped oscillating. After the brief time, the Q loading circuit is turned off and the regenerative amplifier goes into oscillation again. This cycle repeats controllably over and over, resulting in a lower self-induced noise floor and improved received signal sensitivity. The super-regenerative receiver may be used in the very low frequency (VLF), low frequency (LF), medium frequency (MF), high frequency (HF), very high frequency (VHF) and super high frequency (SHF) ranges to receive continuous wave (CW), amplitude modulated (AM) and frequency modulated (FM) radio signals.
Owner:MICROCHIP TECH INC

Smart wearable mine detector

To improve the problems of conventional mine detectors, the purpose of the present invention is to provide a smart wearable mine detector comprising a human body antenna unit 100, a main microprocessor unit 200, a smart eyeglasses unit 300, a body-mounted LCD monitor unit 400, a wireless data transmission and reception unit 500, a belt-type power supply unit 600, a black box-type camera unit 700, and a security communication headset 800, the smart wearable mine detector: can be detachably worn on the head, torso, arm, waist, leg and the like of a body while a combat uniform is worn, thereby having excellent compatibility with conventional combat uniforms; enables a human body antenna unit which is detachably attached to a body and detects a mine through a super high-frequency RF beam and a neutron technique to be applied so as to detect the mine by identifying metals, nonmetals, and initial explosives of the mine; enables mines buried on the ground and under the ground to be detected in all directions (360°), and a distance, location, form, and materials of the mines to be exhibited on smart eyeglasses and a body-mounted LCD monitor unit in real time as 2D or 3D images such that a combatant can engage in battle avoiding mines, thereby improving combat efficiency by 90% when compared to existing combat efficiency; enables a battle to be carried out for three to seven days through a twin self-power supply system of a portable battery and a belt-type power supply unit even without need for charging power; and enables combat situations in a remote place to be monitored, in real time, in a remote combat command server, and allows each combatant to share combat information one to one such that it is possible to construct a smart combat command system capable of remotely commanding real combat situations as if one was on site of the battle.
Owner:FOUND FOR RES & BUSINESS SEOUL NAT UNIV OF SCI & TECH

RFID based intelligent refrigerator system

The invention provides an RFID based intelligent refrigerator system in which a super-high frequency reader-writer, super-high frequency RFID tags, an operating panel, a fingerprint identifier, an Arduino development board, a miniature electronic scale, a door magnetic switch and a wireless communication module component are combined with a refrigerator. The fingerprint identifier is arranged on the outer side of the refrigerator, identifies the identity of a user and meanwhile records the time when the user uses the refrigerator, food material weights and other information. The reader-writer is arranged in the refrigerator and reads food material information attached with the RFID tags, then system reads the food material information from a background database and displays the information on the operating panel, and the user can perform interactive operation on a display screen to check the food materials stored in the refrigerator and query cookbook recommendations of the food materials and specific making methods of dishes; the user checks the expiration dates, source tracing information and the like of the food materials, takes out or puts in the food materials, the system automatically updates a food material list, records the information of the food materials taken out by the user, automatically draws a diet curve by judging the situations of edible food materials and gives out reasonable diet suggestions according to the actual health condition of the user.
Owner:CHUZHOU UNIV

Gasturbine and the combustor thereof

The objective is to provide a gas turbine and the combustor thereof in which super high frequency combustion oscillation and the generation of NOx are reduced. The fluctuation in pressure which induces the fluctuation in heat liberation is suppressed in the gas turbine combustor comprising a plurality of main fuel supply nozzles, each having a premixing nozzle at the top end part thereof, by providing in the space upstream from the premixing nozzles partition elements for dividing the space along the axis of the combustor or a honeycomb element having air passages in the axial direction, or by providing premixing nozzles composed of cylindrical elements with many holes.
Owner:MITSUBISHI HEAVY IND LTD

Module,filter, and antenna technology millimeter waves multi-gigabits wireless systems

A method of fabricating an ultra-high frequency module is disclosed. The method includes providing a top layer; drilling the top layer; milling the top layer; providing a bottom; milling the bottom layer to define a bottom layer cavity; aligning the top layer and the bottom layer; and adhering the top layer to the bottom layer. The present invention also includes an ultra-high frequency module operating at ultra-high speeds having a top layer, the top layer defining a top layer cavity; a bottom layer, the bottom layer defining a bottom layer cavity; and an adhesive adhering both the top layer to the bottom layer, wherein the top layer and the bottom layer are formed from a large area panel of a printed circuit board.
Owner:GEORGIA TECH RES CORP

System and method for multi-hierarchical cell configuration

Provided is a system and method for configuring a multi-hierarchical cell in which a large-scale mobile backhaul technology and a small cell technology are combined. A mobile backhaul may increase a transmission capacity of a wireless backhaul using a super high frequency (SHF) / extremely high frequency (EHF) band, rather than a cellular band having a limitation in extending frequency resources, and a small group cell to be formed at a final end of the mobile backhaul may be configured by fixed group cells or mobile group cells depending on a radio environment, using a moving relay, wireless fidelity (WiFi), femto-cells, and the like, whereby cells may be miniaturized effectively, and a relatively great capacity of a wireless system may be provided to a subscriber.
Owner:ELECTRONICS & TELECOMM RES INST

Gas turbine and the combustor thereof

InactiveUS6920758B2Preventing and restricting propagation of soundSuper high frequency combustion oscillation can be suppressedContinuous combustion chamberGas turbine plantsCombustorHoneycomb
The objective is to provide a gas turbine and the combustor thereof in which super high frequency combustion oscillation and the generation of NOx are reduced.The fluctuation in pressure which induces the fluctuation in heat liberation is suppressed in the gas turbine combustor comprising a plurality of main fuel supply nozzles, each having a premixing nozzle at the top end part thereof, by providing in the space upstream from the premixing nozzles partition elements for dividing the space along the axis of the combustor or a honeycomb element having air passages in the axial direction, or by providing premixing nozzles composed of cylindrical elements with many holes.
Owner:MITSUBISHI HEAVY IND LTD

Modular digital UHF/VHF antenna

InactiveUS20070262912A1Antennas is relatively simpleImprove performanceLogperiodic antennasAntenna arraysRadio frequencyAmplifier
The invention relates to Radio Frequency (RF) antennas suitable for receiving and / or transmitting digital signals in the Ultra High Frequency (UHF) and / or Very High Frequency (VHF) ranges. The invention comprises a modular driven DUV antenna comprising a driven DUV element, an RF signal line RF communicatively connected to the driven DUV element, and an antenna mount supporting the DUV element; and a modular RF signal enhancer, supported by the antenna mount and selected from: an RF amplifier and a passive RF enhancer positioned to enhance the RF performance of the DUV antenna and comprising one of: an RF director, an RF reflector, and an RF booster.
Owner:ECKWIELEN BRADLEY LEE

Broadband RFID UHF antenna and tag and manufacturing method of tag

The invention discloses a broadband RFID UHF antenna, which is used for connecting a RFID chip; the characteristics are as follows: the antenna comprises a near-field antenna and a far-field antenna which are connected in cascade, and the near-field antenna and the far-field antenna are two separated parts which cling to each other to form the UHF antenna. Meanwhile, the invention also provides a RF tag using the antenna and a manufacturing method of the RF tag. The using of the RF antenna and the RF tag provided by the invention can obtain the following benefits: the working distance range of the antenna comprises the near-field range or the far-field range, and the working frequency range can cover the entire RFID UHF frequency band, therefore, the invention has wide range of adaptability. Meanwhile, in the range of the frequency band, the impedance value is stable, and good omni-directivity is provided at xz direction in the working frequency band.
Owner:AEROSPACE INFORMATION

Traveling crane position tracking device based on radio frequency identification

The invention discloses a traveling crane position tracking device based on radio frequency identification. The traveling crane position tracking device comprises a main controller, a position detection device and a position calibrating device, wherein a rotary encoder is adopted by the position detection device, and the position detection device is installed on a main shaft of a traveling crane running motor and used for detecting accurate information of traveling crane displacement; a super-high frequency RFID (Radio Frequency Identification Device) reader and an RFID electronic tag are adopted by the position calibrating device, wherein the RFID reader is fixed on a traveling crane body, and the RFID electronic tag is packaged and then fixed on a bracket arranged on a traveling crane track; and the position detection device and the position calibrating device are both converted through a serial port communication interface and a serial port of the main controller and connected with an expansion module, and the main controller transmits processed position information to a traveling crane terminal control system through an ethernet interface module. In the invention, the displacement is measured by utilizing the rotary encoder, and an RFID-calibrated composite positioning technology is adopted, therefore, errors generated by the problems, such as mechanical skidding, and the like in traveling crane position tracking can be effectively reduced, the traveling crane positioning precision is improved; and the device contributes to managing traveling crane hoisting production.
Owner:SOUTHEAST UNIV

Transformer partial discharge online monitoring system

The invention relates belongs to the technical field of communication and relates to a monitoring system, in particular to a transformer partial discharge online monitoring system. The transformer partial discharge online monitoring system comprises a diagnostic analysis unit, and a communication unit is connected to the diagnostic analysis unit. A plurality of collecting units are connected to the communication unit, and a plurality of sensing units connected with an electric transducer are connected to each collecting unit. A plurality of different types of sensors bound together are connected to each sensing unit, and a power supply module is arranged on each sensor. Compared with the prior art, the transformer partial discharge online monitoring system has the advantages that a piezoelectric sensor keeps away from the magnetic noises of an iron core and the mechanical vibration and noises of a transformer; a super-high-frequency sensor does not play a role of capacity coupling but plays a role of an antenna for receiving super-high-frequency signals, the diagnostic analysis unit can simultaneously start the operation of a plurality of modules to realize data reference among the different modules; the communication unit has diversified ways and also can be suitable for all kinds of environment in the data transmission process.
Owner:HANGZHOU SHENHAO TECH

RF SIM card, card reader, and communication method

A radio frequency (RF) device includes an RF transceiver, an RF antenna, and a magnetic signal detector. The RF is selected to be in the very high frequency (VHF), ultrahigh frequency (UHF), or super high frequency (SHF) bands such that the shielding effect is reduced and the RF device can be configured as a SIM card disposed inside a cellular phone with an increased RF communication range. The magnetic signal detector is used to sense a magnetic field signal from an RF reader, which includes an RF transceiver, an RF antenna, and a magnetic signal transmitter. The longer communication range afforded by the VHF, UHF, or SHF bands is reduced by the sensing of the magnetic field, thereby providing a communication range control, while the RF device and the RF reader exchange information through the RF channel with improved security as a result of the range control.
Owner:NATIONZ TECH INC

Anti-metal UHF electronic tag composed of multi-layer antenna

An anti-metal ultra-high frequency electronic tag composed of a multi-layer antenna, including a substrate, an antenna receiving / transmitting surface, a ground plane, an ultra-high frequency electronic chip placed on the antenna receiving / transmitting surface, an auxiliary substrate, and an auxiliary receiving / transmitting surface launch surface. The positive and negative poles of the UHF electronic chip are connected to the receiving / transmitting surface of the antenna through the feeder; the receiving / transmitting surface is connected to the ground part isolated by the substrate through one or a row of feeding holes; the auxiliary receiving and transmitting surface is isolated through the auxiliary substrate . When the antenna ground plane is in use, it is directly connected to the metal surface, and the metal surface becomes the antenna ground plane in actual use to achieve the purpose of anti-metal; the role of the auxiliary receiving / transmitting surface is to increase the surface area of ​​the antenna to enhance the electromagnetic wave The effect of energy reception / emission. Such a three-dimensional design can reduce the size of the antenna while increasing the area of ​​the antenna.
Owner:上海铁勋智能识别系统有限公司

Coding and decoding circuit of super high frequency radio frequency personal identification system

The invention discloses a coding and decoding circuit for a system of ultra-high frequency radio frequency identification (UHF RFID). Every time when error codes are found, the coding and decoding circuit based on the prior cyclic redundancy check (CRC) circuit resends, thus frequency of communication between a reader-writer and a tag can be increased in the situation of long distances of reading and writing and serious noise interference. If the speed of reading and writing is definite, time for successfully reading once is certainly extended, thereby influencing practicability and reliability of the UHF RFID system in the situation of reading and writing at high speed. To solve the problem, the invention is provided with a convolution error correcting code, adopts concatenation connection with the CRC circuit to reduce frequency of reading and writing, so as to improve the successful reading rate of the system in certain time. The CRC circuit of the invention is a parallel circuit with compact conformation and fast arithmetic designed based on FPGA, thereby further reducing time of communication between the reader and the tag, and increasing the amount of tag identification in unit time.
Owner:HUNAN UNIV

GIS acoustic electric combined partial discharge simulation detection system and detection method thereof

The invention relates to a GIS acoustic electric combined partial discharge simulation detection system. The system comprises an information acquisition module, an information fusion module and a PD fault positioning module. An output terminal of the information acquisition module is connected to an input terminal of the information fusion module. An output terminal of the information fusion module is connected to the PD fault positioning module. In the invention, an acoustic electric combined positioning detection method is used; an arrival time difference is used and a BP neural network is combined to fuse data results of an ultrasonic wave and a super-high frequency; and the partial discharge simulation detection system is constructed so as to realize GIS discharge position positioning.
Owner:TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Super tweeter

A super tweeter includes a magnetic base, a voice coil, a frame annularly mounted to the magnetic base, a central supporting member mounted on a central portion of the magnetic base, a diaphragm, an annular inner supporting member, and an annular outer supporting member. The diaphragm is connected between an annular outer side of the annular inner supporting member and an annular inner side of the annular outer supporting member. An annular inner side of the annular inner supporting member is engaged with the central supporting member. An annular outer side of the annular outer supporting member is engaged with the frame. The annular inner supporting member and the annular outer supporting member cause the diaphragm to vibrate in a balanced manner, generating super high frequency range of sound waves.
Owner:SUN TECHN ELECTRIC

Distant contactless IC card read/write implement and method therefor

This invention relates to one remote non-contact IC read card tool and its method, wherein, the device comprises the following parts: base band data process unit, micro controller, PLL frequency integration super high frequency signal circuit module, power control circuit unit, emission power amplifying unit and base band signal process circuit, wherein, the base band data process unit is of FPGA base band process unit composed of front and back link to realize read card communication agreement and frame process and system time sequence control. This invention progress adopts FPGA chip by use of inner programmable logic materials.
Owner:SHANGHAI FEILO ACOUSTICS +1

Transmitting circuit for super high frequency radio frequency recognition read-write machine to reduce power consumption

An emitting circuit of the hyper-high-frequency radio frequency recognizing read-write machine pertains to the hyper-high-frequency radio frequency recognizing read-write machine technique field, which is characterized by containing a baseband control module, an up-conversion module and a power amplification module. The power amplification module is under the control of the baseband control module at a non-linearity operating status, emits a single frequency banner carrier signal to the radio frequency label, and provides energy required by the work to the radio frequency label; after the single-chip receives the radio frequency answer, the power amplification module is at the linearity operating status, and the single-chip transmits instructions to the radio frequency label by the up converter and the power amplifier. The power consumption of the invention is lower than the power consumption of the general emitting circuit using single linear power amplifier.
Owner:TSINGHUA UNIV

Dynamic comparator circuit of super-speed flash type analog-to-digital converter

The invention belongs to the technical field of analog integrated circuit designs, in particular to a dynamic comparator circuit of a super-speed flash type analog-to-digital converter. The circuit comprises a double-tail latching comparator and a dynamic disorder cancellation circuit. The circuit operation is divided into the following four steps: disorder storage, input signal storage, comparison and reset. Compared with the traditional latching comparator, the double-tail latching comparator can operate under the state of super high frequency. The dynamic comparator has the advantages that the dynamic cancellation of disorder voltages is eliminated without a preposing amplifier, thus the power consumption is reduced greatly; and in addition, the overdrive voltage of an input transistor is independent of the input common-mode voltage and threshold voltage of the input transistor, so the overdrive voltage of the input transistor can be optimized to further reduce the random disorder voltage. By utilizing the dynamic comparator circuit provided by the invention, the comparison of a super speed signal can be realized with lower power consumption, and moreover, high resolution ratio can be realized.
Owner:FUDAN UNIV

Speaker for super-high frequency range reproduction

InactiveUS20050018870A1Sound pressure frequency responseWide directional patternTransducer detailsPiezoelectric/electrostrictive transducersLoudspeakerSound pressure
To provide a speaker for reproducing ultrahigh frequencies which outputs ultrahigh frequencies up to 100 kHz with stable sound pressure. A speaker for reproducing ultrahigh frequencies of the present invention comprises a schematically disk-shaped piezoelectric ceramic vibrator wherein a piezoelectric ceramic and a metal substrate are bonded; a dome-shaped diaphragm attached to said piezoelectric ceramic vibrator; and a panel which fixes an outer peripheral part of said piezoelectric ceramic vibrator and has an opening part in a front face of said dome-shaped diaphragm, wherein the diameter of the dome part of said dome-shaped diaphragm is made to be 0.5 to 0.8 times the effective. movable diameter of said piezoelectric ceramic vibrator.
Owner:PANASONIC CORP

Super high density laser two-dimensional scanning device based on modulation frequency measurement

The invention relates to a super high density laser two-dimensional scanning device based on modulation frequency measurement. The device comprises a high frequency signal generator (1), a laser device (2), a reference distance board (3), an echo detector (4), a shaping module (5), a frequency discriminator (6), a scanning mirror (7), an angle coder (8), a coding counting circuit (9), a distance calculation module (10) and a two-dimensional data processing module (11). According to the device, super high frequency square wave modulation on laser is carried out, in a target scanning process, a vision distance from a target surface to a scanning device generates continuous change, the distance change rate can be reflected through the laser echo frequency, an internal distance reference point corresponding to an initial position of the scanning mirror is used for reference, and the vision distance from the target surface to the scanning device can be acquired through integration of the distance change rate; measurement repetition frequency is determined only by modulation frequency and the output rate of the frequency discriminator and is not limited by a fuzzy distance, and the measurement repetition frequency can be improved to GHz.
Owner:INST OF RADAR & ELECTRONICS CONFRONTATION ARMY AIR FORCE EQUIP RES INST OF PLA

Cable temperature monitoring system based on intelligent Internet of Things

The invention discloses a cable temperature monitoring system based on intelligent Internet of Things. The cable temperature monitoring system is characterized in that a temperature collector corresponds to a group of RFID (radio frequency identification) temperature tags; each RFID temperature tag in each group of RFID temperature tags is respectively arranged at a monitoring point of a to-be-monitored cable; a through hole is formed in the middle part of a flexible insulation substrate; a heat conduction metal block is embedded into each through hole; a temperature measuring chip is in contact with each heat conduction metal block, and is connected with a super-high frequency RFID chip; an antenna is connected with each super-high frequency RFID chip, and is positioned on each flexible insulation substrate; the antenna in each RFID temperature tag in each group of RFID temperature tags is connected with the corresponding temperature collector, and the output end of each temperature collector is connected with a gathering controller. The cable temperature monitoring system is capable of realizing the passive and wireless temperature monitoring on the cable in a channel.
Owner:STATE GRID CORP OF CHINA +1

Integrated thin-film narrowband band-stop filter and design method thereof

The invention belongs to the field of magnetic materials and components, and relates to a high-frequency microwave electromagnetic device and a high-frequency magnetic thin film, in particular to an integrated thin-film narrowband band-stop filter and a design method thereof. The magnetic thin film and a coplanar waveguide are integrated; a non-single frequency point narrowband band-stop filter is formed by applying angular magnetic fields to the plane of the thin film in different directions; the complicated design of a plurality of resonant cavities is overcome; the structure is simple; and the volume of the filter is reduced. An interference signal can be attenuated within super-high frequency (SHF, 3-30GHz) and extra-high frequency (EHF, 30-300GHz) ranges; a useful signal is not affected; and the requirement of suppressing noise harmonics in a non-single frequency band is met. Furthermore, manufacturing of the filter can be achieved by combining a thin film technology with a microelectronics lithography process; and the process is simple and easy to implement.
Owner:UNIV OF ELECTRONIC SCI & TECH OF CHINA

Apparatus and method for transmitting signal in a wireless communication system

ActiveUS20150010105A1Reduce system overheadAntenna gain attributed to beamforming can be increasedSpatial transmit diversityMulti-frequency code systemsCommunications systemData signal
An apparatus and method for transmitting a signal needed for beam acquisition in a wireless communication system operating in a super-high frequency band are provided, in which a small reference modulation symbol length relative to a data modulation symbol length is determined, taking into account a communication characteristic of a Mobile Station (MS), a data modulation symbol generated by modulating a data signal using a predetermined modulation scheme is transmitted according to the determined data modulation symbol length, and a reference modulation symbol generated by modulating a reference signal using the predetermined modulation scheme is transmitted according to the determined reference modulation symbol length.
Owner:SAMSUNG ELECTRONICS CO LTD
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