42results about How to "Increase bandwidth" patented technology

A method and system for monitoring context information associated with a wireless communication entity for determining a potential occurrence of a network disruption for that wireless communication entity. Upon determining a potential occurrence of a network disruption, causing an adjustment of bandwidth available for data transfer involving the wireless communication entity. The adjustment is used to prevent or mitigate service disruptions.

A telecommunications system includes a Public Land Mobile Network for providing wireless service to users and a wireless local area network functioning outside the said PLMN as a separate PLMN. An inter-PLMN backbone interfaces the WLAN to the PLMN, and an interworking function is coupled to the WLAN to provide seamless interactions between the PLMN and the WLAN to increase available service bandwidth provided for users of the PLMN.

A patch antenna in accordance with the present invention comprises a patch optionally surrounded by a top ground plane, a feed line disposed beneath the patch and separated therefrom by a thin substrate, a middle ground plane separated from the feed line by another thin substrate, and a bottom ground plane disposed beneath the middle ground plane and preferably separated therefrom by foam or another lightweight dielectric layer. Conductive vias run between the top ground plane and the middle ground plane as well as from the middle ground plane to the bottom ground plane. The middle ground plane is essentially annular, defining an opening in the middle thereof, such that there is a dielectric cavity beneath the patch and the feed line in the space defined by the bottom ground plane, the middle ground plane and the vias that run between the middle ground plane and the bottom ground plane. This cavity can be filled with low cost, low weight foam, rather than the heavier, more costly conventional substrates.

The present invention relates to a multiband folded loop antenna comprising a dielectric substrate, a ground plane, a radiating portion and a matching circuit. The ground plane is located on the dielectric substrate and has a grounding point. The radiating portion comprises a supporter, a loop strip, and a tuning patch. The loop strip has a length about half wavelength of the antenna's lowest resonant frequency. The loop strip has a feeding end and a grounding end, with the grounding end electrically connected to the grounding point on the ground plane. The loop strip is folded into a three-dimensional structure and is supported by the supporter. The tuning patch is electrically connected to the loop strip. The matching circuit is located on the dielectric substrate with one terminal electrically connected to the feeding end of the loop strip and another terminal to a signal source.

The present invention aims at avoiding code limitation in a CDMA cellular mobile communication network without decrease in data transmission quality. This object is achieved through a method of scheduling a transfer of data to at least one user in a cellular mobile communication network where the transfer of data is achieved via downlink channels using codes selected from a plurality of code trees. In a first step of the method a plurality of requests (*) to access downlink channels are received until the beginning of a scheduling time interval. In a second step permissions to access downlink channels ( ) are coordinated according to the assignment of downlink channels to the different code trees (A, B).

A passive element memory device is provided that includes memory cells comprised of a state change element in series with a steering element. Controlled pulse operations are used to perform resistance changes associated with set and reset operations in an array of memory cells. Selected memory cells in an array are switched to a target resistance state in one embodiment by applying a positive voltage pulse to selected first array lines while applying a negative voltage pulse to selected second array lines. An amplitude of voltage pulses can be increased while being applied to efficiently and safely switch the resistance of cells having different operating characteristics. The cells are subjected to reverse biases in embodiments to lower leakage currents and increase bandwidth. The amplitude and duration of voltage pulses are controlled, along with the current applied to selected memory cells in some embodiments. These controlled pulse-based operations can be used to set memory cells to a lower resistance state or reset memory cells to a higher resistance state in various embodiments.

A car antenna assembly includes an outer cover, an antenna unit, a fixing seat, a locking bar, a control board, and a base. The antenna unit is made of a metallic strip which is bent freely to form a plurality of antenna elements which are connected successively. The outer cover covers the antenna unit and the fixing seat. Thus, the height of the antenna elements is increased gradually from the front end toward the rear end of the antenna unit, while the antenna elements have a constant spacing so that the bandwidth of the antenna elements is increased so as to increase the receiving effect of the AM and FM signals. The car antenna assembly has a shark fin shape to reduce the air drag and air shear noise.

Methods, modules, and computer program products for allocating bandwidth to a subscriber line that carries packet communications between devices networked across a wide area network are disclosed. At a wide area network access module that connects the subscriber line to the wide area network, at least one of the packets in a packet stream are analyzed to identify a type of protocol associated with the analyzed packet that is indicative of a bandwidth of the packet stream. The wide area network access module varies the bandwidth that is allocated to the subscriber line in response to the indicated; bandwidth of the packet stream. Packet communications through the subscriber line are constrained to no more than the allocated bandwidth.

Antenna subassemblies and wireless terminals are provided. The antenna subassembly includes a planar antenna and a flat-panel speaker that can be integrated with the planar antenna. The wireless terminal includes a flat-panel speaker and a planar antenna, integrated or not, positioned adjacent one another on the same side of an electronic circuit in a housing.

This process applies to a number of user kits (A, B, . . . X) and a head-end kit (1) communicating over the electricity network (2) using an upstream channel and a downstream channel. In essence, the process comprises accessing by multiple user kits (A, B, . . . X) in the upstream channel and the sending of multiple information frames by the head-end (1) in the downstream channel simultaneously applying OFDMA / TDMA / CDMA multiplexing and dynamically assigning each carrier so as to maximize transmission capacity in both the upstream and downstream channels. In turn, the process allows the adjustment of the quality of service according to the type of information and the user that requires the transmission and the dynamic allocation of bandwidth through constantly calculating the signal-to-noise ratio.

A small rectenna including a thin conductive layer formed on a surface of a dielectric substrate and a slot pattern arranged within the thin conductive layer. The small rectenna for an RFID transponder includes: a dielectric substrate; a thin conductive layer formed on a surface of the dielectric substrate; a slot pattern configured within the thin conductive layer so that the rectenna has an enhanced gain and a greater operating bandwidth; and an inlet of an electronic chip including an ASIC in the slot pattern.

A temperature insensitive DEMUX / MUX device whose wavelength does not change by environment temperature is provided for WDM application. The temperature insensitive DEMUX / MUX device includes a waveguide-based delay-line-interferometer configured to receive an input light bearing multiplexed wavelengths and output a first output light bearing the same multiplexed wavelengths but with a shifted intensity peak position. The first output light is transmitted into a DEMUX device through a first free space coupler and a grating fiber or waveguide to be demultiplexed for forming a plurality of second output lights each bearing an individual wavelength. The DEMUX device includes a second free space coupler for refocusing each second output light to corresponding output channel. The shifted intensity peak position of the first output light is tunable to make each second output light free from any temperature-induced drift off corresponding output channel.

An antenna comprising a substrate (12) having on a first side a first antenna element (16, 32) and on a second side a second antenna element (18, 34) which is of a different length to the first antenna element (16,32).

A free space data transfer system utilizing fibreless optical point to point and omni-directional transmission and reception arrays, and including data processors and organic elements capable of interactive multi-way video and modulated data transfer.

A circuit for, and method of, adaptively recognizing a data packet (such as an Internet Protocol, or IP, packet) and a USB device containing a system-on-a-chip incorporating the system or the method. In one embodiment, the circuit includes: (1) a USB endpoint configured to receive USB packets bearing portions of the data packet and (2) a short packet detector associated with the USB endpoint and configured to detect and respond to a received short USB packet by causing at least some of the USB packets to issue from the USB endpoint.

A signal detector for detecting electrically charged particles in a gaseous medium has an electrode having a tip region for gathering charged particles. The electrode is connected to a voltage source for applying a voltage that generates electro-static field for attracting the particles to the electrode, and at least part of the tip region has a radius of curvature which is sufficiently small or (in the case of a point tip or sharp edge) infinitesimally small so as to create a localised high intensity electro-static field which defines a detection zone in which, in use, charge particles are accelerated by the electric field so as to ionise gas molecules in the zone and thus amplify the signal to be received by the detector. The received signal is supplied through an output of the detector. The detector may be provided in a sample chamber of a scanning electron microscope.

The antenna includes a substrate, a radiation part and a ground part. The radiation part is disposed on the substrate. The outside frame of the radiation part is similar to D-type. The radiation part has at least a hole inside. The ground part is also disposed on the substrate. The ground part has at least a hole inside. Positions of a feeding terminal and a ground terminal of the antenna are not limited to center regions of the sides of the radiation part and the ground part.

A broadband signal junction with sum signal absorption for transmitted signals includes a common hollow conductor with a first predefined cross-section and four laterally-disposed side arm hollow conductors with a predefined cross-section. The cross-sections of the side arm hollow conductors can also be selected to be different. Two first opposing side arm hollow conductors of the four side arm hollow conductors extend along a first axis. Two second opposing side arm hollow conductors of the four side arm hollow conductors extend along a second axis. The first and the second axes are disposed orthogonal to one another and lie in the common plane. The broadband signal junction with sum signal absorption is characterized in that the two first side arm hollow conductors end with a hollow conductor absorber.

The invention relates to a phase shifter which comprises a dielectric substrate (4) and substrate coupling circuits (10) arranged on the dielectric substrate (4) and also comprises a sliding unit, wherein the sliding unit can slide relative to the dielectric substrate (4) and comprises sliding sheets (13), a press element (12), a transmission rod (1), screws (2) and nuts (11), the sliding sheets (13) are arranged above the dielectric substrate (4) and provided with a sliding sheet coupling circuit (16), the sliding sheet coupling circuit (16) is coupled with the substrate coupling circuits (10) during the sliding process of the sliding unit, the press element (12) is arranged above the sliding sheets (13), the transmission rod (1) is arranged above the press element (12), the screws and the nuts (11) are used for fixing the transmission rod (1) and the press element (12) on the sliding sheets (13) and making the press element (12) and the sliding sheets (13) tightly pressed on the dielectric substrate (4), the nuts (11) are elastic nuts, and the press element (12) is clamped between the sliding sheets (13) and the elastic nuts. By the phase shifter, the bandwidth is increased, the volume is reduced, and the adjustable inclination range is expanded.

An antenna comprises a ground element, a transmission element, a conductive element and a coupling element. The conductive element connects the ground element and the transmission element. The coupling element extends from the conductive element substantially parallel to the transmission element, wherein the coupling element is located on a first plane, the transmission element is located on a second plane, and the second plane is parallel to the first plane.

The present invention provides a microwave and millimeter-wave balun. This balun is different from the conventional planar Marchand balun by using three edge-coupled lines instead of two edge-coupled lines and adding a pair of broadside coupled-lines. The broadside couple-lines are achieved by stacking two lines fully overlapped; the upper line is implemented using air-bridges to cross over the bottom line. By combining three edge-coupled-lines and broadside coupled-line, it will make the Marchand balun have a higher coupling coefficient and increase the operation bandwidth. The microwave monolithic integrated circuit (MMIC) mixer based on this invention can provide compact size compared to conventional ones.

An antenna assembly for an automobile including an antenna element having a resonance frequency which is higher than the frequency modulation (FM) range of frequencies for receiving at least one of amplitude modulation (AM), FM and satellite digital audio radio service (SDARS) radio signals. A printed circuit board including amplifier circuitry is in electrical communication with the antenna element for amplifying the radio signals received by the antenna element. A lumped element having a quality value greater than sixty is disposed on the printed circuit board for effectively increasing the bandwidth of radio signals which may be received by the antenna element. All of these components are disposed within a small and aesthetically pleasing cover, such as a shark fin-shaped cover.

The invention relates to a miniature ultrahigh frequency anti-metal multipurpose RFID label antenna. The label antenna is composed of a slotted metal sheet layer, a medium material layer and a metal film layer. The label antenna has a low profile, the area of the surface of the label antenna is only 15 cm<2>, and the label antenna meets requirements of ultrahigh frequency RFID wave bands, ranging from 902MHz to 928MHz under a -10dB condition, in South America, North America, China and Australia. The label antenna has good working performance when used on the surfaces of metal and nonmetal products. The label antenna can be widely applied to logistics management, production management, warehousing and transportation, and the like.

The invention discloses a bone conduction loudspeaker individual and a bone conduction earphone. The loudspeaker individual comprises a stator system configured to form a magnetic field, and a vibration system comprising a spring piece, a washer, a counterweight part and an elastic connection part, wherein the counterweight part is fixedly connected with the washer through the elastic connection part; the washer is fixed to the spring piece; and the spring piece is suspended above the stator system. Due to the arrangement of the counterweight part and the elastic connection part, the high-frequency response range of the loudspeaker individual is expanded, the sound range is wider, and the performance is more excellent.

A power supply apparatus for a power amplifier includes a converter configured to convert input power into driving power for the power amplifier, a detector configured to transfer the driving power from the converter to the power amplifier, including an inductor formed on a detection path of the driving power, and configured to detect power information regarding the driving power to generate a detected signal, and a controller configured to control power conversion of the converter based on an envelope signal of a signal input to the power amplifier and the detected signal.

The invention relates to a dipole antenna, which comprises a substrate, a radiating part and a grounding part. The radiating part is arranged on the substrate; the outer frame of the radiating part is similarly D-shaped; at least one slot is formed in the radiating part; the grounding part is also arranged on the substrate; and at least one slot is formed in the grounding part. Moreover, the allocation positions of a feed-in point and a grounding point of the antenna are not limited by the center positions of the sides of the radiating part and the grounding part.

The invention discloses a vertical integrated isolation transition power divider, and aims to provide a vertical transition and power distribution integrated power divider which is compact in structure, high in isolation and low in loss. Two paths of high-resistance matching strip lines (10) etched between the inner layer ground (6) and the upper surface ground (7) are isolated from each other; two paths of n-shaped bent isolation strip-shaped lines (13) which are centrosymmetric are in transition connection with two paths of low-resistance matching strip-shaped lines (11); two paths of low-resistance matching strip lines respectively pass through branch ports of two paths of branch port strip lines (12) opposite to the cascade input end and the output end, and four paths of coupling striplines of the isolation strip line are cascaded with two opposite isolation resistors (14). Smooth transition of an interlayer structure of the multilayer dielectric plate (1) and efficient power distribution or synthesis are achieved through impedance conversion.

The invention discloses an RF(Radio Frequency) information stealing detecting terminal. The RF information stealing detecting terminal comprises a first detecting module, a second detecting module and a first distinguishing module, wherein the first detecting module is used for detecting an up-link signal of a public frequency band of information stealing equipment; the second detecting module is used for detecting an up-link signal of a mobile network of the information stealing equipment; and the first distinguishing module is used for distinguishing the type of the public frequency band signal according to a modulation manner of the public frequency band signal under the situation that the public frequency band signal is detected by the first detecting module. According to the RF information stealing detecting terminal disclosed by the invention, the public frequency band signal and the mobile network signal are separately detected, so that the bandwidth of a detected frequency band is widened; and according to the modulation manner, the detected public frequency band signal is distinguished, so that detection of the uplink public frequency band signal of the information stealing equipment is refined and accurate.

Systems, apparatuses, and methods for controlling bandwidth through shared transaction limits are described. An apparatus includes at least a plurality of agents, a plurality of transaction-limit (T-Limit) nodes, a T-Limit manager, and one or more endpoints. The T-Limit manager creates a plurality of credits for the plurality of agents to send transactions to a given endpoint. Then, the T-Limit manager partitions the credits into N+1 portions for N agents, wherein the extra N+1 portion is a shared pool for use by agents when they run out of their private credits. The T-Limit manager assigns a separate private portion of the N portions to the N agents for use by only the corresponding agent. When an agent runs out of private credits, the agent's T-Limit node sends a request to the T-Limit manager for credits from the shared pool.

A communication system with a communications adapter operating in an interrupt mode, the system comprising: a network system with at least one sender and a recipient of a message and a network for communication therebetween; the communications adapter placing data from the message in a receive buffer and generating an interrupt; and a state variable configured to track received messages. A method for increasing bandwidth in an interrupt mode processing protocol comprising: creating a state variable configured to track received messages; incrementing the state variable only if the received message exhibits multiple packets; decrementing the state variable if the received message exhibits multiple packets and completes; and generating an interrupt, with a communications adapter running in an interrupt mode, the communications adapter placing data from received message in a receive buffer.