79results about How to "Avoid bandwidth" patented technology

An improved method and apparatus are disclosed to permit real time, distributed performance by multiple musicians at remote locations, and for recording that collaboration. The latency of the communication channel is transferred to the behavior of the local instrument so that a natural accommodation is made by the musician. This allows musical events that actually occur simultaneously at remote locations to be played together at each location, though not necessarily simultaneously at all locations. This allows locations having low latency connections to retain some of their advantage. Artifacts resulting from an unreliable communication channel, for instance dropouts and jitter, are eliminated in the recorded performance. Limitations of communications bandwidth are managed in real time, with full fidelity restored in the recording.

An improved method and apparatus are disclosed to permit real time, distributed performance by multiple musicians at remote locations, and for recording that collaboration. The latency of the communication channel is transferred to the behavior of the local instrument so that a natural accommodation is made by the musician. This allows musical events that actually occur simultaneously at remote locations to be played together at each location, though not necessarily simultaneously at all locations. This allows locations having low latency connections to retain some of their advantage. Artifacts resulting from an unreliable communication channel, for instance dropouts and jitter, are eliminated in the recorded performance. Limitations of communications bandwidth are managed in real time, with full fidelity restored in the recording.

A multi-user animation process provides a modeled three-dimensional (“3D”) environment and virtual reality (“VR”) data to remote clients. The VR data comprises data for animating avatars in the modeled 3D environment. The remote clients provide input data including an ignore signal in response to commands from corresponding users. The multi-user animation process receives the input data, aggregates the input data from each of the remote clients, filters the aggregated input data in response to the ignore signal by removing the input data of a selected one of the remote clients from the aggregated input data, generates updated VR data for each of the remote clients using the filtered aggregated input data and provides an updated modeled 3D environment and the updated VR data to the remote clients. The remote clients display the updated modeled 3D environment and the updated VR data to the corresponding users.

A technique is provided for striping packets across pipelines of a processing engine within a network switch. The processing engine comprises a plurality of processors arrayed as pipeline rows and columns embedded between input and output buffers of the engine. Each pipeline row or cluster includes a context memory having a plurality of window buffers of a defined size. Each packet is apportioned into fixed-sized contexts corresponding to the defined window size associated with each buffer of the context memory. The technique includes a mapping mechanism for correlating each context with a relative position within the packet, i.e., the beginning, middle and end contexts of a packet. The mapping mechanism facilitates reassembly of the packet at the output buffer, while obviating any any out-of-order issues involving the particular contexts of a packet.

A method and apparatus for transmitting and receiving a Sounding Reference Signal (SRS) to a network in a communication system. A bandwidth allocated by the network to transmissions of one or more random access channels is determined. An SRS bandwidth configuration is reconfigured by setting a maximum bandwidth value of the SRS bandwidth configuration to a value that avoids overlapping the bandwidth allocated to transmissions of the one or more random access channels. The SRS is transmitted in accordance with a bandwidth from the reconfigured SRS bandwidth configuration. Information regarding the SRS bandwidth configuration is provided to a User Equipment (UE) by the network.

A graphics system including a custom graphics and audio processor produces exciting 2D and 3D graphics and surround sound. The system includes a graphics and audio processor including a 3D graphics pipeline and an audio digital signal processor. A memory controller performs a wide range of memory control related functions including arbitrating between various competing resources seeking access to main memory, handling memory latency and bandwidth requirements of the resources requesting memory access, buffering writes to reduce bus turn around, refreshing main memory, and protecting main memory using programmable registers. The memory controller minimizes memory read / write switching using a “global” write queue which queues write requests from various diverse competing resources. In this fashion, multiple competing resources for memory writes are combined into one resource from which write requests are obtained. Memory coherency issues are addressed both within a single resource that has both read and write capabilities and among different resources by efficiently flushing write buffers associated with a resource.

An integrated NAS / CAS system is disclosed. The system includes a view management program that is able to provide a NAS view and a CAS view of files to NAS and CAS clients. The system applied NAS or CAS features to stored files according to the view status of the file. Migration of files from NAS to CAS for archiving may be done without transmitting the file, thereby reducing bandwidth requirements and increasing security. CAS features, such as retention policy and metadata can be added to the file when its view is changed from NAS to CAS.

An electronic circuit, such as a transmitter, for receiving a modulating signal including an in-phase component (I) and a quadrature component (Q). The electronic circuit has a first digital-to-RF-amplitude convertor (DRAC) receiving the in-phase component and a second digital-to-RF-amplitude convertor (DRAC) receiving the quadrature component. The first digital-to-RF-amplitude convertor is operative in a first duty cycle that is different from 50% and the second digital-to-RF-amplitude convertor is operative in a second duty cycle that is different from 50% and substantially the same in value as said first duty cycle.

A distributed channel allocation method and a wireless mesh network with the same are provided herein. By the distributed channel allocation, interference situations are avoided in a wireless network communication, and the allocated bandwidth can then be fully utilized. Besides, unnecessary depletion of an allocated bandwidth due to the interference can be avoided. By this method, a time division technique is applied for dividing a transmission time of each wireless NIC, and different non-overlapping channels can be assigned to different timeslots. Different from other researches that require a symmetrical number of the NICs between a receiving node and a transmitting node, in this method, a unique wireless NIC may communicate with the wireless NICs. The method provides the feature that the number of the NICs on a certain node can be adjusted to meet a communication requirement, by which the efficiency of a network flow is also significantly improved.

A method and system for a digital content distributing service, wherein the system comprises a central broadcast station, an audit trails unit, and a distributing control unit. The central broadcasting station includes at least one unicast streaming server, at least one multicast streaming server, and a digital content storage unit, wherein the digital content storagre unit provides a plurality of digital contents to be displayed for consumers connected to the central broadcasting station via a transmission media. The audit trails unit receives and records the individual expenditure information of consumers. The distributing control unit controls the distribution of the digital contents in accordance with the individual expenditure information of consumers, wherein when consumers watch one identical digital content, the distributing control unit will determine to distribute the identical digital content to the consumers by the at least one unicast streaming server or the at least one multicast streaming server.

A method includes receiving a 360-degree video. The method further includes determining one or more regions of interest (ROIs) within the 360-degree video. The method further includes, for each frame in the 360-degree video, splitting the frame into a base layer that includes at least a partial view of the 360-degree video and splitting the frame into one or more enhancement layers that correspond to the one or more ROIs. The method further includes receiving the base layer and, based on a viewing direction of an end user, the one or more enhancement layers. The method further includes generating a video stream from the base layer and, based on the viewing direction of the end user, the one or more enhancement layers. The method includes providing the video stream to a decoder for decoding.

An approach is provided for managing an allocation of a bandwidth of a dedicated channel in a network being utilized by an application performing a replication of data from a first to a second storage resource. Checks of parameters specified by the application are determined. The parameters include, but are not limited to, average compression ratio, compression ratio trend, throughput, throughput trend, and round trip time. Respective high and low threshold values for the parameters are determined. At least one of the checks of the parameters is executed, which determines a violation of a threshold value for one of the parameters. If the violation of the high threshold value is determined, an increase in the bandwidth is triggered. If the violation of the low threshold value is determined, a decrease in the bandwidth is triggered.

A mobile ambient network (MAN) negotiator 106 is provided for negotiating with ambient access networks (AANs) 102 on behalf of a MAN 104 to select a particular AAN to handle a wireless communication session for the MAN. The MAN is, e.g., either a user terminal (UT) or a private area network (PAN). The negotiations performed by the MAN negotiator on behalf of the MAN include establishing a secure, trusted relationship between the MAN and the AAN, as well as negotiating costs, billing arrangements and the like. The MAN negotiator communicates with the MAN via a dedicated wireless communication channel but preferably communicates with the AANs via non-wireless, i.e. fixed, connections.

An integrated NAS / CAS system is disclosed. The system includes a view management program that is able to provide a NAS view and a CAS view of files to NAS and CAS clients. The system applied NAS or CAS features to stored files according to the view status of the file. Migration of files from NAS to CAS for archiving may be done without transmitting the file, thereby reducing bandwidth requirements and increasing security. CAS features, such as retention policy and metadata can be added to the file when its view is changed from NAS to CAS.

An engine ECU 200 includes a bandpass filter (1), a bandpass filter (2), and a bandpass filter (3). The bandpass filter (1) extracts only vibrations at a first frequency band A from the vibrations detected by a knock sensor. The bandpass filter (2) extracts only vibrations at a second frequency band B from the vibrations detected by the knock sensor. The bandpass filter (3) extracts only vibrations at a third frequency band C from the vibrations detected by the knock sensor. The first to third frequency bands A-C are identical in bandwidth. The engine ECU calculates a peak value in magnitude of vibrations in a synthesized waveform of these frequency bands, and determines whether knocking occurred or not based on the peak value.

In a satellite communication system, comprising a hub, a satellite and plurality of remote terminals (e.g., VSATs), a method for allocating timeslots over a return channel to VSATs in real time, without a reference to a predefined time-frequency map, for at least the purpose of optimizing return channel utilization. Also presented are a method for dividing a return channel to transmission channels in real time, a method for determining a most suitable timeslot type for a VSAT per allocation period and a tiling algorithm for mapping allocated capacity onto return channel bandwidth.

The present invention relates to a router apparatus and a bandwidth controlling method thereof. An object of the present invention is to provide a router apparatus which allows a network connection bandwidth to be equally used by a plurality of clients without need to perform a special bandwidth acquisition procedure. A router apparatus according to the present invention is a router apparatus for controlling a bandwidth, said router apparatus being disposed between a network and a plurality of clients under an environment in which the bandwidth for connection with a network is shared by a plurality of clients, said router apparatus comprising: address management means for assigning an address to a client in response to a network connection request issued from the client; and bandwidth management means for reassigning the bandwidth to the assigned address and addresses assigned to the other clients.

In one embodiment, a bandwidth monitoring device comprises a packet receiving circuit configured to receive packets; a counter configured to count a total packet length by adding up inputted packet lengths including a packet length of a next input packet and subtracting outputted packet lengths to produce a counted value; a timer configured to time a packet receiving time; a memory configured to store a number of packet receiving times and a number of counted values counted by the counter which correspond to the packet receiving times, respectively; a counter rate-of-change calculating portion configured to calculate a change rate by a first counted value corresponding to an oldest packet receiving time stored in the memory representing an oldest time at which a packet was received and a second counted value corresponding to a latest packet receiving time stored in the memory representing a latest time at which a packet was received; and a determining portion configured to decide whether the next input packet will be discarded based on a probability computed by the change rate and the counted value counted by the counter when the packet receiving circuit receives the next input packet.

The invention provides a method for determining the brushing number of a live broadcasting room, a live broadcasting method and a data processing method. The method for determining the brushing number of the live broadcasting room comprises the steps: determining the code rate distribution proportion of a target live broadcast room within a first preset time length according to the code rate distribution information of the target live broadcast room reported by a scheduling server; according to the code rate access information of the target live broadcasting room reported by a live broadcasting data server, determining a code rate access proportion of the target live broadcasting room within a first preset duration; and according to the code rate distribution proportion and the code rate access proportion, determining whether the target live broadcasting room has a quantity refreshing condition. Therefore, whether the code rate distribution condition in the actual access process is abnormal or not can be determined by combining the code rate distribution condition reported and distributed by the scheduling server and the code rate distribution condition in the actual access process reported by the live broadcasting data server, so that whether the condition of brushing amount exists in the target live broadcasting room or not can be accurately judged, and the hit rate of judging whether the live broadcasting room brushes amount is improved.

The invention provides a novel method used for phase lock voltage subtraction of micro water vapor detection, and belongs to the technical field of optical fiber sensing detection. Wavelength modulation is conducted on a laser, and signals passing through gas-absorption peaks and non-absorption positions are detected through the phase locking technology and are processed. An achieving system comprises a temperature controlling and driving module of the laser, the laser, a one-to-one optical fiber coupler, a gas chamber, a photoelectricity detector, a current and voltage conversion module, an automatic gain control amplifier, a subtracter, a phase locking module and a signal processing and detecting module. According to the novel method, as the phase locking module is used and detection signal subtraction is conducted before phase locking, the signal to noise ratio can be greatly improved, and gas concentration signals are effectively extracted. Automatic gain amplification can overcome the detect that vibration of optical fibers, power fluctuation of the laser and other factors cause light intensity signal changes, and stability of the system can be improved. In addition, the system has the advantages of being small in size, simple in structure, low in cost and the like.

The invention relates to a low power consumption power supply circuit of a meter bus slave computer, which belongs to the technical field of instruments and meters and comprises a constant voltage source circuit with high pressure resistance and low quiescent current and a low-pass filter circuit, wherein two triodes which are connected into a Darlington form are used as an emitter follower of the constant voltage source circuit, the base electrode of the emitter follower is connected with a standard voltage generated by a voltage reference, and a voltage with low output resistance is output from an emitter to form a constant voltage source; the low-pass filter circuit is formed by connecting a resistor with a low resistance value and a capacitor in series; and the emitter of the emitter follower is connected with the resistor of the low-pass filter circuit. Compared with the solution of the prior art, the current consumption of the slave computer in a dormant state is greatly reduced on the basis of not increasing the cost of the single slave computer, thus the overall energy consumption is reduced, and meanwhile, the number of the slave computers of a traditional meter bus network can be greatly increased, and the nodes of the meter bus network can be increased. The low power consumption power supply circuit of the meter bus slave computer is particularly suitable for low power consumption meter bus systems, such as water meters, gas meters and the like.

The invention relates to a high-speed lossless ultrahigh-definition industrial visual detection method and system. The method comprises the following steps that: at an offline configuration stage, a smart camera unit consisting of an ultrahigh-definition image sensor, an ISP (Internet Service Provider) processing module, a visual detection module, a hardware clock synchronizing module and the like remotely transmits high-resolution RAW data and RGB (Red Green Blue) image data to a computer through an optical fiber to generate a detection algorithm and a control logic; and at a high-speed online running stage, a visual detection module performs detection operation, marks a feature image, remotely transmits the feature image to a high-speed recording and playing unit through the optical fiber to perform recording, and asynchronously displays the feature image on the computer. Through adoption of the high-speed lossless ultrahigh-definition industrial visual detection method and system, the original RAW data and the RGB image data are detected directly and visually through an FPGA (Field Programmable Gate Array) module, and remotely recorded synchronously through a multichannel optical fiber, so that real-time performance of the high-speed ultrahigh-definition visual detection system can be effectively ensured.

A magnetic disk drive having a high recording density and enabling high speed transfer is achieved by reducing vibration of a carriage arm assembly to reduce a positioning error. The disk drive is configured so that a carriage arm is configured by two arm portions, the arm portions being coupled to each other by a restraint member through a viscoelastic material, the restraint member being supported on a carriage body or an area of the carriage arm in the vicinity of the body by means of adhesion or a viscoelastic material. By providing a high damping effect against various vibration modes in which in-plane bending and out-plane bending of the carriage arm are generated, vibration of the carriage arm assembly is suppressed, so that the positioning error is reduced, thereby the magnetic disk drive having a high recording density can be achieved.

The invention provides a method for establishing a route, which comprises the following steps that: a step 201, a node searches a target node in a first stage node group according to first stage routing information, and an inquiry result or data saved by the target node is returned if the target node is found, or else the step 202 is executed; and a step 202, the node searches the target node in a higher stage node group according to higher stage routing information, the inquiry result or the data saved by the target node is returned if the target node is found, or else the step 202 continues to be executed. A hierarchical communication system can limit most of traffic of daily service operation in a communication network into a small geographical area, and avoid the excessive occupation of backbone network bandwidth which is not adequate originally.

The invention provides a method for establishing a route, comprising the following steps: 201, searching for a destination node by a node in a first stage node group according to first stage route information, if the destination node is found, returning a checking result or data stored by the destination node, or performing step 202; and 202, searching for a destination node by a node in a superior stage node group according to the superior stage route information, if the destination node is founded, returning a checking result or the data stored by the destination node, or continuously performing the step 202. Most of flux for daily business operation in a communication network can be limited within a small region through such a hierarchic communication system to avoid excessive occupation to the insufficient band width of a backbone network.

A signal processing circuit for adjusting an input signal and generating a corresponding digital output signal in an optical disk driver is provided. The signal processing circuit includes an attenuator for receiving and attenuating the input signal and then generating an attenuated output signal; a gain controllable amplifier for receiving and amplifying the input signal and then generating an amplified output signal; a control unit providing a control signal and a select signal, the control signal is directed to the attenuator and the gain controllable amplifier for enabling / disabling the attenuator and the gain controllable amplifier and for controlling their gains such that one of the attenuator and gain controllable amplifier is enabled at a time; and a waveform adjuster circuit for adjusting the amplified / attenuated output signal delivered from the gain controllable amplifier or the attenuator so as to generate the digital signal related to the input signal.

An image processing apparatus includes a data bus provided to access a memory, a compressing unit which compresses an image data and outputs a compressed image data, a write unit which writes the compressed image data into the memory via the data bus, a read unit which reads a compressed image from the memory via the data bus, a decompression unit which decompresses the compressed data read by the read unit, and a control unit which controls operations of the write unit and the read unit, based on an amount per unit time of the compressed image data outputted from the compressing unit, an amount per unit time of the compressed image data read from the memory and a degree of congestion of the data bus.

The invention belongs to the field of industrial robots, the field of intelligent control and the field of edge computing, and discloses a mechanical arm intelligent control system, method and devicebased on edge computing. The system aims at achieving low-delay and high-safety intelligent control over a mechanical arm, the system comprises a mechanical arm, a sensor, a center cloud, an edge cloud and an edge node, the central cloud is provided with an algorithm file library; the edge cloud obtains a corresponding algorithm file from the center cloud for algorithm program configuration, and acontrol law model and an optimized inverse kinematics model are obtained based on the training data; or constructing a virtual scene three-dimensional model based on the industrial field image; the edge node acquires sensor information and transmits the sensor information to the edge cloud for calculation; and based on the deployed control law, the control amount of the mechanical arm is calculated. The edge cloud serves as a core processing platform and cooperates with the center cloud and the equipment end, and low-delay and high-safety intelligent control over the industrial mechanical armon the edge side of a factory is achieved.