Patents
Literature
Hiro is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Hiro

56results about How to "Good communication characteristics" patented technology

Semiconductor chip with coil antenna and communication system

The present invention intends to prevent the communication distance from becoming shorter with a reduction in size of a coil antenna to the chip size and with a consequent decrease of an induced voltage. According to the present invention there is provided a semiconductor chip having a coil antenna and a circuit surface and adapted to transmit and receive signals by radio to and from an external device. The semiconductor chip has a configuration for increasing an electromagnetic coupling coefficient between the coil antenna and the external device. According to a concrete example thereof, a magnetic material is disposed, the coil antenna is formed by a stacked structure comprising plural conductor layers and insulating layers superimposed one on another, or the coil antenna is disposed outside an external form of a circuit of the semiconductor chip.
Owner:HITACHI LTD

Surface acoustic wave apparatus and communication apparatus

A longitudinally-coupled-resonator-type surface acoustic wave filter includes three interdigital transducers provided on a piezoelectric substrate in the direction in which surface acoustic waves propagate. An interdigital transducer disposed at the approximate center among the three interdigital transducers of the longitudinally-coupled-resonator-type surface acoustic wave filter is divided into two parts substantially symmetrically in the propagation direction of the surface acoustic waves and the two parts are connected to balanced signal terminals, respectively. Left and right interdigital transducers of which the polarities are inverted relative to each other are connected to an unbalanced signal terminal to provide a balanced-to-unbalanced conversion function. A reactance component provided on the piezoelectric substrate, inside a package, or outside the package is connected to either of the balanced signal terminals.
Owner:MURATA MFG CO LTD

Integrated circuit device

An integrated circuit device with a data processing block is provided, the data processing block including a plurality of operation units that are arranged in a matrix, a plurality of first wire sets that extend in a first direction in the matrix and transfer input data of each operation unit, a plurality of second wire sets that extend in a second direction in the matrix and transfer output data of each operation unit, and a plurality of switching units that are arranged at each intersection between the first and second wire sets and can select and connect any wire in the first wire sets and any wire in the second wire sets. The plurality of operation units include a plurality of types of operation units with different data paths that are suited to special-purpose, processing, with an arrangement of operation units of the same type in the first direction or the second direction being formed in at least part of the data processing block. The functioning of the integrated circuit device can be dynamically changed by changing the configuration of the operation units and the integrated circuit device is composed of operation units with different data paths that are suited to special-purpose processing so that the integrated circuit device is both compact and economical.
Owner:FUJIFILM BUSINESS INNOVATION CORP

Mounting structure of dielectric filter, dielectric filter device, mounting structure of dielectric duplexer, and communication device

An excitation hole is provided inside a dielectric block and, on the outer surface of the dielectric block, an input-output terminal electrically connected to an inner conductor inside the excitation hole is formed at one end portion of the excitation hole. A grounding-electrode-free portion is provided on the surface opposite to an input-output electrode of a mounting substrate with which the input-output terminal makes contact. Thus, the electric field strengths in upward and downward directions toward an outer conductor of the dielectric block from the excitation hole are balanced to suppress spurious TE-mode signals, etc.
Owner:MURATA MFG CO LTD

Method for manufacturing insulated gate bipolar transistor (IGBT) device

The invention discloses a method for manufacturing an insulated gate bipolar transistor (IGBT) device. The method sequentially comprises an ion injection step of forming a p type heavily doped collecting region on the back side of a silicon wafer, a partial or whole annealing step and a step of depositing surface metal on the front side of the silicon wafer; and after the p type heavily doped collecting region is formed on the back side of the silicon wafer, a layer of silicon dioxide is deposited on the back side of the p type heavily doped collecting region. The method has the advantages that the temperature limitation of the p type ion annealing on the back side of the silicon wafer is eliminated, and high activity rate is easy to obtain. Simultaneously, the p type impurity distribution in the p type heavily doped collecting region can be optimized. On one hand, the ohmic contact with back metal is easy to form, on the other hand, the emission efficiency of a precision navigation processor (PNP) is favorably controlled, and the alternating current characteristic of the IGBT device is improved.
Owner:SHANGHAI HUAHONG GRACE SEMICON MFG CORP

A double silicon nanowire wrap gate field-effect transistor and its manufacture method

The provided double-silicon nano line enclose-grid FET belonged to MOSFET technique in ULSI comprises: a silicon substrate, double silicon lines as the channels, a grid anode and multicrystal silicon grid enclosing the nano lines to form the enclose-grid structure, both source and drain connecting with the substrate, and a thick SiO2 layer between the right bottom of channel and substrate. This invention is compatible to common CMOS technique, reduces cost and power consumption, and has wide application.
Owner:PEKING UNIV

Base Station Device, Method for Controlling Base Station Device, Receiving Device, Adaptation Algorithm Control Method, Radio Communication Device, and Radio Communication Method

A base station device according to the present invention includes: a first reception weight calculator 122 configured to calculate weight, of each antenna element of an array antenna 114 to be used in communications with a first mobile station device by using a reference signal transmitted from the first mobile station device; and a second reception weight calculator 124 configured to calculate weight of each antenna element of the array antenna 114 to be used in communications with a second mobile station device, which is different from, the first mobile station device of the multiple mobile station devices, the second reception weight calculator 124 calculating the weight so that null can be directed to an arriving direction of the reference signal transmitted from the first mobile station device, the arriving direction being determined on the basis of weight calculated by the first reception weight calculator 122.
Owner:KYOCERA CORP

Communication terminal apparatus and antenna device

An antenna device which includes a coil conductor and a booster conductor. The coil conductor is defined by wound loop-shaped conductors and includes a first opening at a winding center and two ends connected to a feeding circuit. The booster conductor includes a coupling conductor portion and a frame-shaped radiation conductor portion. The coupling conductor portion includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is electromagnetically coupled to the coil conductor. The frame-shaped radiation conductor portion includes a third opening and is connected to the coupling conductor portion.
Owner:MURATA MFG CO LTD

Reduced message count for interaction decomposition of N-body simulations

Disclosed are a method of and system for creating a load balanced spatial partitioning of a structured, diffusing system of particles with pairwise interactions that is scalable to a very large number of nodes and has favorable communications characteristics including well defined bounds on the number of hops and the number of nodes to which a particle's position must be sent. To deal with structural imbalance, we can assign a weight corresponding to the computational cost for a particular pair interaction of particles or locally clustered groups of particles to simulation space at the midpoint of the distance between the particles or centers of the clusters. We then carry out a spatial partitioning of the simulation volume using a k-d tree or optimal recursive bisection (ORB) to divide the volume into sections that have approximately equal total weights. To deal with local degradation of the load balance caused by changes in the distribution of particles from that used to determine the original spatial decomposition one can assign the actual computation of the pair interaction between two particles to any node that has the positions of both particles.
Owner:GLOBALFOUNDRIES INC

Communication terminal apparatus and antenna device

An antenna device which includes a coil conductor and a booster conductor. The coil conductor is defined by wound loop-shaped conductors and includes a first opening at a winding center and two ends connected to a feeding circuit. The booster conductor includes a coupling conductor portion and a frame-shaped radiation conductor portion. The coupling conductor portion includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is electromagnetically coupled to the coil conductor. The frame-shaped radiation conductor portion includes a third opening and is connected to the coupling conductor portion.
Owner:MURATA MFG CO LTD

Interference and noise elimination method and device

The invention discloses an interference and noise elimination method and device. The method comprises the following steps of: extracting a pilot frequency sequence received by a user from a receiving signal, and obtaining an interference and noise spatial characteristic matrix according to the extracted receiving pilot frequency sequence and a local sending pilot frequency sequence; determining an interference and noise relative ratio according to the interference and noise spatial characteristic matrix; and carrying out comparison on the determined interference and noise relative ratio and the predetermined threshold, selecting a corresponding equalization algorithm to carry out equalization according to a comparative result, and eliminating the interference and noise. According to the technical scheme provided by the invention, the problem of deteriorated system performances due to adopting an equalization method in a robust mode because of the unknown magnitude of interference in a communication system is solved, thereby improving the communication characteristics of cell edge users, and farthest improving the throughput of cell centre users.
Owner:ZTE CORP

Wireless IC tag and method for manufacturing wireless IC tag

A wireless IC tag which has an electrically insulative substrate, an antenna circuit provided on the surface of the substrate and an IC chip connected to the antenna circuit, wherein the antenna circuit is formed of solder and the IC chip is connected to the antenna circuit via the solder, andA wireless IC tag comprising an electrically insulative substrate, an antenna circuit provided on the surface of the substrate, an IC chip connected to the antenna circuit, and a jumper wire connected to the antenna circuit,wherein the antenna circuit is formed of a solder,the jumper wire is insulatively coated with a resin composition that evaporates, decomposes, or melts at a temperature not higher than a soldering temperature, andthe jumper wire is located on the same side of the substrate where the antenna circuit is provided
Owner:TATEYAMA KAGAKU KOGYO KK

Wireless communication apparatus and wireless communication method

Provided is a wireless communication apparatus which prevents deterioration of communication characteristics because of a transmission weight of a greatest common factor and enhances the communication characteristics of feedback MIMO. A wireless communication apparatus having a plurality of antennas includes a reception unit for obtaining channel state information of channels of signals received from another wireless communication apparatus, a channel state information calculation unit for calculating an average value of the channel state information, selecting channels having the channel state information equal to or higher than a threshold based on the average value and calculating representative channel state information of the predetermined frequency band overall from the channel state information of the selected channels, a transmission weight selection unit for selecting a transmission weight based on the representative channel state information, and a transmission unit for transmitting identification information of the transmission weight to the another wireless communication apparatus.
Owner:KYOCERA CORP

MOS (Metal Oxide Semiconductor) field effect transistor

The invention provides an MOS (Metal Oxide Semiconductor) field effect transistor comprising a substrate, a source electrode, a drain electrode and a grid stack, wherein the source electrode and the drain electrode are formed in the substrate; the grid stack is formed above the substrate and positioned between the source electrode and the drain electrode; and a grid dielectric layer is made of a dielectric material with an adjustable K value. In the embodiment of the invention, the dielectric material with the adjustable K value is applied to the grid dielectric layer of a CMOS (Complementary Metal-Oxide-Semiconductor Transistor) device; the grid capacitance is increased by dynamically obtaining the high K value; and the capability of the CMOS device on controlling the short channel effect and the switching rate are improved.
Owner:INST OF MICROELECTRONICS CHINESE ACAD OF SCI

Communication terminal apparatus and antenna device

An antenna device which includes a coil conductor and a booster conductor. The coil conductor is defined by wound loop-shaped conductors and includes a first opening at a winding center and two ends connected to a feeding circuit. The booster conductor includes a coupling conductor portion and a frame-shaped radiation conductor portion. The coupling conductor portion includes a second opening overlapped at least partially by the first opening, is split in a portion thereof by a slit, and is electromagnetically coupled to the coil conductor. The frame-shaped radiation conductor portion includes a third opening and is connected to the coupling conductor portion.
Owner:MURATA MFG CO LTD

Configurable interconnection of multiple different type functional units array including delay type for different instruction processing

An integrated circuit device with a data processing block is provided, the data processing block including a plurality of operation units that are arranged in a matrix, a plurality of first wire sets that extend in a first direction in the matrix and transfer input data of each operation unit, a plurality of second wire sets that extend in a second direction in the matrix and transfer output data of each operation unit, and a plurality of switching units that are arranged at each intersection between the first and second wire sets and can select and connect any wire in the first wire sets and any wire in the second wire sets. The plurality of operation units include a plurality of types of operation units with different data paths that are suited to special-purpose, processing, with an arrangement of operation units of the same type in the first direction or the second direction being formed in at least part of the data processing block. The functioning of the integrated circuit device can be dynamically changed by changing the configuration of the operation units and the integrated circuit device is composed of operation units with different data paths that are suited to special-purpose processing so that the integrated circuit device is both compact and economical.
Owner:FUJIFILM BUSINESS INNOVATION CORP

Distributing N-Body Computation Based on Surface Intersections

Techniques are disclosed for creating a load balanced spatial partitioning of a structured, diffusing system of particles. An exemplary method includes steps of determining a subset of a set of nodes within a given portion of the coordinate system intersected by a surface defined by points having a given distance from the surface of the given node; and mirroring the determined subset to at least another portion of the coordinate system.
Owner:IBM CORP

Electronic device

Disclosed is an electronic device comprising an IC element 10, a first circuit layer 20 on the surface of which is formed an antenna circuit 21 composed of a conductive layer, and a second circuit layer 30 on the surface of which is formed a conductive layer 31. The IC element 10 comprises a base substrate 11 composed of silicon, a semiconductor circuit layer 12 formed on one side of the base substrate 11 in which layer a semiconductor circuit is formed, and an electrode 13 formed on the semiconductor circuit layer 12. The first circuit layer 20 is connected to either the other side of the base substrate 11 or the electrode 13, and the second circuit layer 30 is electrically connected to either that same other side of the base substrate 11 or the electrode 13 which ever is not connected to the first circuit layer 20. Consequently the electronic device can be efficiently produced at low-cost while achieving good communications properties.
Owner:RESONAC CORPORATION

Antenna device and electronic equipment

The present invention is provided with: an antenna substrate (11) on which an antenna coil (12) inductively coupled with a reader / writer (120) is looped; a metallic foil (3) which is provided to the antenna substrate (11) so that at least a part of the antenna coil (12) overlaps the same; and a magnetic sheet (20) which is arranged so as to overlap the antenna coil (12), and which draws magnetic fields into the antenna coil (12). At one side (11a) of the antenna coil (12), in which the current flowing in the conductive line of the antenna coil (12) circulates in one direction, the antenna coil (12) is closer to the reader / writer (120) than the magnetic sheet (20) is, and / or at the other side (11b) of the antenna coil (12), in which the current flowing in the conductive line of the antenna coil (12) circulates in the opposite direction, the magnetic sheet (20) is closer to the reader / writer (120) than the antenna coil (12) is. The metallic foil (3) only overlaps with said other side (11b) of the antenna coil (12).
Owner:DEXERIALS CORP

Wireless communication device

A wireless communication device that includes a first electrode connected to a first terminal electrode of an RFIC element and a second electrode connected to a second terminal electrode of the RFIC element. Moreover, the first electrode has a longitudinal direction and a lateral direction and has a first portion connected to the first terminal electrode and a second portion that faces the first portion and the second electrode. The first portion has an extended portion that extends in the longitudinal direction beyond a connection point between the second electrode and the second terminal electrode.
Owner:MURATA MFG CO LTD

Reduced message count for interaction decomposition of n-body simulations

Disclosed are a method of and system for creating a load balanced spatial partitioning of a structured, diffusing system of particles with pairwise interactions that is scalable to a very large number of nodes and has favorable communications characteristics including well defined bounds on the number of hops and the number of nodes to which a particle's position must be sent. To deal with structural imbalance, we can assign a weight corresponding to the computational cost for a particular pair interaction of particles or locally clustered groups of particles to simulation space at the midpoint of the distance between the particles or centers of the clusters. We then carry out a spatial partitioning of the simulation volume using a k-d tree or optimal recursive bisection (ORB) to divide the volume into sections that have approximately equal total weights. To deal with local degradation of the load balance caused by changes in the distribution of particles from that used to determine the original spatial decomposition one can assign the actual computation of the pair interaction between two particles to any node that has the positions of both particles.
Owner:TAIWAN SEMICON MFG CO LTD

Wireless IC device, clip-shaped RFID tag, and article having RFID tag

In a wireless IC device, a columnar body includes a metal body with an insulating film. A loop-shaped antenna conductor is provided on an upper surface of the columnar body via an insulating pedestal. The loop surface of the antenna conductor is parallel or substantially parallel to the upper surface of the columnar body. On the lower surface of a RFIC element, two terminal electrodes are provided. The RFIC element is mounted on the antenna conductor such that the two terminal electrodes are connected to both ends of the antenna conductor, respectively. One end of the connecting conductor is connected to the vicinity of one end of the antenna conductor, and the other end of the connecting conductor is connected to the upper surface of the columnar body.
Owner:MURATA MFG CO LTD

Partially filled pipe detection circuit of electromagnetic flowmeter

The invention provides a partially filled pipe detection circuit of an electromagnetic flowmeter. The partially filled pipe detection circuit comprises a CPU drive signal waveform transforming circuit, a first-grade passive lowpass filtering circuit, a differential signal amplification circuit, an active power filter circuit, and an absolute value transforming circuit. One end of the CPU drive signal waveform transforming circuit acquires high-frequency pulse signals, and the other end is connected with the first-grade passive lowpass filtering circuit. The first-grade passive lowpass filtering circuit is connected with the differential signal amplification circuit. A voltage follower circuit in the active power filter circuit is connected with a second-order active high-pass filtering circuit. The differential amplification circuit is also connected with the voltage follower circuit. The second-order active high-pass filtering circuit is connected with the absolute value transforming circuit. The absolute value transforming circuit outputs detection signals. A [pi] type filter circuit formed by a RC is used in the input end of a differential operational amplifier, and the [pi] type filter circuit can effectively filter spike noise caused by liquid flow when pipes are partially filled, so as to reduce interference. The partially filled pipe detection circuit is advantaged by real-time online monitoring, fast response speed, relatively good noise inhibiting ability, stable and reliable detection performance.
Owner:中船环境工程有限公司

4H-SiC metal semiconductor field effect transistor (MSFET) with multi-recess buffer layer

The invention discloses a 4H-SiC MSFET with a multi-recess buffer layer, belongs to the technical field of field effect transistors, and aims at improving the breakdown voltage and transconductance parameter of the field effect transistor and improving a DC characteristic. The MSFET comprises a 4H-SiC semi-insulating substrate, a P type buffer layer and an N type trench layer from bottom to top, a source cap layer and a drain cap layer are arranged at the two sides of the N type trench layer respectively, a source electrode and a drain electrode are arranged in the surfaces of the source cap layer and the drain cap layer respectively, a gate electrode is formed on the N type trench layer at the side close to the source cap layer, the upper end surface of the buffer layer is provided with three buffer-layer recess regions respectively in positions under the gate electrode and a gate source, under a gate-drain at the side close to the gate electrode and under the gate-drain at the side close the drain cap layer, the depths of the three buffer-layer recess regions are all 0.15 micron, and the lengths of the three buffer-layer recess regions are 1.2, 0.1 and 0.5 microns respectively.
Owner:XIDIAN UNIV

Mobile Device and Radio Communication Portion of Mobile Device

In this mobile device, at least either the selection antenna module or the selection circuit module is so formed as to be incapable of being mounted on the mobile device body when the selection antenna module and the selection circuit module are not matched to each other, and both the selection antenna module and the selection circuit module are so formed as to be capable of being mounted on the mobile device body when the selection antenna module and the selection circuit module are matched to each other.
Owner:FUNAI ELECTRIC CO LTD

RFID tag and method of manufacturing the same

An RFID tag is provided that has a rectangular parallelepiped substrate including a top surface, a bottom surface, and four side surfaces, an RFIC chip mounted on the top surface of the substrate, and a coil conductor connected to the RFIC chip. The coil conductor includes a conductor pattern disposed on the top surface, a conductor pattern disposed on the bottom surface, and a plurality of through-hole conductors penetrating the substrate and extending between the top and bottom surfaces. Moreover, a winding axis of the conductor pattern intersects with each of a pair of the side surfaces opposite to each other and having a largest area among the four side surfaces.
Owner:MURATA MFG CO LTD

Pressure controlling oscillator and communication device therwith

A voltage controlled oscillator changes two different frequencies to operate, and includes a resonance circuit, an oscillation circuit, and a buffer circuit. The resonance circuit includes a variable capacity diode, a diode which is a switching element, a strip line resonator, an inductor, a resistor, coupling capacitors, and a DC blocking capacitor. The intermediate tap CT1, which is located at a position other than the ends in the strip line resonator, of the strip line resonator is grounded via the diode as the switching element, and the DC blocking capacitor. The diode as the switching element is connected to a control terminal via the resistor.
Owner:MURATA MFG CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products