227results about How to "Reduce data transfer time" patented technology

A novel approach is provided for avoiding the “slow-start restart” in TCP communications when network conditions dictate such. The disclosed approach serves to overcome the latency related to the “slow-start restart” by assessing network conditions and avoiding the “slow-start restart” when network conditions justify the avoidance. The disclosed methods, applications and devices implement the periodic communication of a probe packet that is generated and transmitted from a TCP sender to a TCP receiver during the period that the TCP network connection remains idle. Receipt of the probe packet by the TCP receiver will trigger transmission of an acknowledgment message by the TCP receiver. Upon receipt of the acknowledgement message the TCP sender will restart measurement of the idleness period and, as such the “slow-start restart” is avoided.

Although music program data has been recorded on a disc, imperfect index data or a signal has been recorded so that music program data is prohibited from being reproduced. To allow music program data to be reproduced, the index data is rewritten to perfect index data or a permission signal that allows music program data to be reproduced is transmitted through a communication line. Thus, music program data can be reproduced from the disc. Since music program data is not directly transmitted, the data transmission time is shortened. The music program data can be downloaded at high speed. In addition, the charging process can be smoothly performed. Moreover, music program data can be prevented from being illegally used.

An image processing apparatus includes a receiving mechanism configured to receive a request, from at least one different image processing apparatus connected via a network, for transmission of a codestream generated in a way such that image data is divided into at least one region, each region being hierarchically compressed and stored in the image processing apparatus, a decomposing mechanism configured to decompose a codestream and retrieve the codestream in a component unit, an extracting mechanism configured to extract a target region from the codestream, a primary priority assigning mechanism configured to assign priority to the target region extracted by the extracting mechanism, and a primary transmitting mechanism configured for transmission of the codestream, decomposed in a component unit corresponding to the target region, to the different image processing apparatus requesting transmission of the codestream based on the priority assigned by the primary priority assigning mechanism.

A bus bridge apparatus for performing broadcasted writes to redundant memory subsystems in a network storage controller is disclosed. The bus bridge includes a PCI-X target that receives a write command on a first PCI-X bus on one side of the bridge. The target is coupled to two PCI-X masters coupled to primary and secondary memory subsystems by respective PCI-X buses on the other side of the bridge. A first FIFO buffers the write command data between the target and the first master, and a second FIFO buffers a copy of the data between the target and the second master. The first and second masters concurrently retransmit the write command on their respective PCI-X buses to the primary and secondary memory subsystems. However, the second master only retransmits if broadcasting is enabled and the write command address is in a broadcast address range known by the bus bridge.

The invention discloses a data processing method for hardware acceleration of a convolutional neural network. By analyzing the parallel characteristics of the convolutional neural network, and in combination with the parallel processing capability of hardware, the hardware acceleration is carried out on the convolutional neural network. The acceleration scheme is used for performing acceleration improvement on the Tiny-yolo network from three aspects that (1) the processing speed of the Tiny-yolo network is increased through multi-channel parallel input; (2) the convolution computing speed ofthe Tiny-yolo network is increased through parallel computing; and (3) the pooling process time of the Tiny-yolo network is shortened through pooling embedding. The method greatly increases the detection speed of the convolutional neural network.

A column circuit that amplifies signals read from a sense amplifier array SAA to local input/output lines LIO in sub-amplifiers SAMP to transfer the amplified signals to main input/output lines MIO is provided. A current control circuit IC that can set one of two kinds of currents according to read enable signals RD1, RD2 is provided in each sub-amplifier SAMP. The read enable signals RD1, RD2 are generated at timings corresponding to the number of cycles in burst read operation under control of the timing controller. Current in the current control circuit IC is set to be large by the RD1 in burst read operation cycle just after activation of a memory bank, while current in the current control circuit IC is set to be small by the RD2 in the next and subsequent burst read cycles. Accordingly, expansion of an operation margin or reduction of power consumption can be realized in a semiconductor device including a semiconductor memory such as a DRAM.

The invention is for a method and apparatus of biometric data collection, distribution and management. The method allows for the collection of biometric data and the management and distribution of that data though at least one but preferably a network of biometric reading devices. The biometric reading devices can be used in conjunction with currently known applications or custom developed applications that can utilize data collected and managed throughout a network of remote biometric devices. These remote biometric reading devices can be used to perform time and attendance functions, access control functions, work release prisoner monitoring or any end use where information is managed and gathered to identify a person scheduled to be at a particular remote biometric device at a particular time. The system utilizes a Biometric Data Server (BDS) to manage and maintain Biometric templates, placing a removing the Biometric templates on remote biometric reading devices in conjunction with a predetermined directive. This process increases the efficiency and speed of the remote biometric device.

An image forming apparatus forms an image by a plurality of dots, by forming a periphery of a stepped transition portion of a contour portion of at least a character and/or graphics of the image by dots having a smaller size than dots forming portions other than the stepped transition portion, and determining a method of forming the dots having the smaller size depending on an inclination of the contour portion.

The invention provides a method and a system for realizing ultra-low latency encoding, decoding and transmission of a high-definition video. The method comprises the steps that: an encoder receives the high-definition video, segments each frame of images constituting the high-definition video into a plurality of cut frames, and completes caching, compressed encoding and uploading in sequence by regarding each of the cut frames as a unit one by one; an Ethernet transmits compressed encoded data of the cut frames; and a decoder receives the compressed encoded data of the cut frames, completes caching and independent decoding in sequence by regarding each of the cut frames as a unit, and splices the images after independent decoding to complete the restoration of each frame of the images. Themethod and the system solve the problem that high real-time video transmission application cannot be satisfied because the existing encoding and decoding system cannot cut flexibly and is difficult to adjust and optimize, realize the effect that the total time delay from encoding, transmission to decoding is less than 50 ms, and can meet the low latency requirements of the high real-time application.

The invention discloses a multicast router based on package and circuit switching technology and a working mode thereof. The multicast router based on package and circuit switching technology is characterized by being applied to a network on chip which includes a plurality of multicast routers, a plurality of resource nodes and a plurality of interconnection channels; each multicast router comprises an input state machine module, a priority encoder module, a decoder module, an address filtering module, an arbiter module, a crossbar module and an output state machine module; in a multicast data transmission event, a single requester node can simultaneously support sending the same batch of data to at most eight target nodes at the same time; and the success rate of establishing a link can be improved by the priority encoder module, and the target nodes are prevented from repeatedly routing by the address filtering module. The multicast router based on package and circuit switching technology can fully utilize the parallelism characteristic of the network on chip to save time consumed for the event of sending the same batch of data to the plurality of target nodes by the single requester node, and consumption on cache resources of the multicast routers in the network on chip is reduced.

The invention discloses an arbitrary waveform generating system based on a user-defined processor. In a control portion, a waveform generating module generates various waveform segment data downloaded to a hardware portion through a waveform downloading module, a control program generating module receives an externally inputted instruction set, and the instruction set is downloaded to the hardware portion after compiling of a compiling module. In the hardware portion, a storage control logic module controls reading and writing of a waveform memory, the user-defined waveform processor receives and analyzes the instruction set, generates call instructions for corresponding waveform segments according to names of the waveform segments indicated by the instruction set, transmits the call instructions to the storage control logic module and receives the waveform segment data read by the storage control logic module, and analog signals are outputted after combined waveform segment data are conditioned according to the call sequence and the call frequency of the waveform segment indicated by the instruction set. By the aid of the arbitrary waveform generating system, data transmission time of the control portion and the hardware portion during waveform generation can be shortened.

The present invention relates to data communication system and method enabling the utilization of contents by accessing the wireless Internet through self-formation of a dynamic URL by the caller's terminal application. When the caller attempts a voice call or a data call, the contents menu list registered by the receiver (or contents provider) and the caller/receiver information are transferred to the caller's terminal through a paging channel. Then, an application software stored in the caller's terminal processes the service option and displays the menu based on the menu list and caller/receiver information. Subsequently, in response to the caller's menu utilization request, a dynamic URL is formed from the combination of the identification number and contents type of the menu selected by the caller and the caller/receiver information.

A dual buffer memory system capable of improving system performance by reducing a data transmission time and a control method thereof are provided. The dual buffer memory system includes a flash memory block and a plurality of buffers. The dual buffer memory system uses a dual buffering scheme in which one buffer among the plurality of buffers interacts with the flash memory block and simultaneously a different buffer among the plurality of buffers interacts with a host. Therefore, it is possible to reduce a data transmission time between the flash memory and the host, thereby improving system performance.

An imaging element having a layered structure including a first chip having a pixel portion in which pixels for photoelectrically converting an optical image of an object and generating a pixel signal are arranged two-dimensionally and a second chip in which a drive means of the pixel portion is arranged, and having a first output path to output the pixel signals of at least a first pixel group in the pixel portion and a second output path to output the pixel signals of a second pixel group, comprises the a conversion means for converting the pixel signals of the first and second output paths into digital signals and a control information generation means for generating control information of a photographing operation of the object by using the digital signal converted by the conversion means, wherein at least a part of the conversion means is arranged in the first chip.

The invention provides a resource dispatching method and a system based on a wireless system, applied to a multi-hop network, and the specific realization method is: a bandwidth is given to MS by a mobile terminal MS synchronous station, and data are transmitted to the synchronous station of MS through the acquired bandwidth by MS; data is transmitted to an upper node through the bandwidth given by the upper node from each level of nodes between MS and MMR-BS supporting a mobile multi-hop relay station, after a bandwidth given by the upper node is acquired between a lower node given by the bandwidth and the data received from the lower node and data of the lower node are received. The invention has the advantages that the application of the scheme can assure the acquirement of the bandwidth before receiving the transmitted data from the lower node; the space between the acquired bandwidth and the received transmission data is relatively small; not only can the whole data transmission time be effectively compressed, but also the distributed bandwidth is in line with the real-time condition of a link of the network; a problem of disabled bandwidth distribution can be effectively avoided.

Provided is an uplink scheduling method and apparatus of a Base Station, in which total packet transmission time can be reduced by reducing the time required for a Subscriber Station to request a frequency band for packet transmission to the BS through a series of contention procedures and to be allocated to the frequency band. Therefore, even an SS that is not allocated a frequency band in an UpLink-MAP can immediately transmit a frequency band allocation request without overhead, thereby reducing initial delay time.