摘要:
A data transmitting device divides application data into packets, transmits the packets, and continuously carries out packet transmission while receiving acknowledgement from a receiving device of the transmitted packets. The application data to be transmitted is stored in a data storage area of a data storage unit. The data is read from the data storage area, a sequence number is set, and the data is transmitted as the packet. If the read data is within a predetermined length from an end of the application data, a copy of the read data is saved in a temporary buffer area of the data storage unit. When data of a sequence number before that of first data of next application data is to be transmitted after transmission of the next application data is started, the data is read from the temporary buffer area of the data storage unit.
摘要:
A communication apparatus of one embodiment includes a hardware protocol processing unit, a software protocol processing unit, a hardware protocol process information generating unit to generate protocol process information from the result of the processing by the hardware protocol processing unit, a software protocol process resumption unit to perform control of the software protocol processing unit using the protocol process information generated by the hardware protocol process information generating unit, a software protocol process information generating unit to generate protocol process information from the result of the processing by the software protocol processing unit, and a hardware protocol process resumption unit to perform control of the hardware protocol processing unit using the protocol process information generated by the software protocol process information generating unit.
摘要:
A system has a processor configured to be capable of read and write to a main memory, a storage configured to transmit stored data per block on an I/O bus, and a protocol processing apparatus connected to the I/O bus and configured to perform a communication protocol process on behalf of the processor. The processor includes a specifying part configured to specify data per block to be transmitted from the storage, and an indicating part configured to indicate data transfer from the storage to the protocol processing apparatus by specifying address information of the protocol processing apparatus. The protocol processing apparatus includes a receiving part configured to directly receive data transferred per block from the storage to the I/O bus, without relaying the main memory, and a network processing part configured to transmit the data received per block by the receiving part over a network per packet.
摘要:
There is provided with an image generating apparatus, including a storage having first and second buffers, a write buffer selecting unit selecting a buffer for each of areas to be written, a writing unit, a read buffer selecting unit selecting a buffer for each area of one frame to be readout, a reading unit read outing at regular intervals an image from each area. The write buffer selecting unit selects an other buffer than a buffer read out in a frame reading period for each area to be written in the period. The read buffer selecting unit selects in the period a buffer to which the writing was performed in an immediately preceding reading period for an area for which writing was performed in the preceding period, and a same buffer as a buffer readout in the preceding period for an area for which the writing was not performed.
摘要:
Disclosed is a power feed system which can highly efficiently feed power to a power receiving unit from a power feed-side even though distance fluctuation or lateral shift occurs between a power feed-side helical coil and a power receiving-side helical coil. A distance measuring unit measures a inter-coil distance L1 between the power feed-side helical coil and the power receiving-side helical coil, and a control units, adjust capacitances of a power feed-side varactor and a power receiving-side varactor in accordance with the inter-coil distance L1 measured by the measuring unit.
摘要:
A signaling unit of a display terminal establishes communication with a content server, video communication terminal, and PC server through a communication unit, and transmits/receives image data compressed by MPEG2, MPEG4, and JPEG. A media control unit switches compression schemes for decoding in a media processing unit on the basis of the received image data. The media processing unit performs decoding processing including inverse orthogonal transformation processing and dequantization processing in accordance with the switched compression scheme. At this time, a single processing circuit performs inverse orthogonal transformation processing and dequantization processing.
摘要:
A signaling unit of a display terminal establishes communication with a content server, video communication terminal, and PC server through a communication unit, and transmits/receives image data compressed by MPEG2, MPEG4, and JPEG. A media control unit switches compression schemes for decoding in a media processing unit on the basis of the received image data. The media processing unit performs decoding processing including inverse orthogonal transformation processing and dequantization processing in accordance with the switched compression scheme. At this time, a single processing circuit performs inverse orthogonal transformation processing and dequantization processing.
摘要:
A data receiving method according to the present invention includes: storing received packets in a data storing unit; storing, in a data-storage-information storing unit, information indicating data portions are stored; specifying FEC parameters of column FEC packets and row FEC packets; specifying a leading FEC packet using at least SNBase of a first column FEC packet and SNBase of a second column FEC packet or a row FEC packet; specifying an FEC packet group corresponding to a matrix same as a matrix of the leading FEC packet; selecting one FEC packet from the FEC packet group; judging whether restoration processing can be performed by using the selected FEC packet; storing, when a lost data packet is restored, the restored data packet in the data storing unit; and storing, in the data-storage-information storing unit, information indicating that the restored data packet is present.
摘要:
According to one embodiment, a data communication apparatus includes a communication unit configured to transmit a transmission frame and receive a reception frame via a plurality of networks, a storage unit configured to store a first identifier indicating by way of which of the plurality of networks the communication unit has received a reception frame or a second identifier indicating by way of which of the plurality of networks the communication unit transmits a transmission frame, a hardware protocol processing unit, and a software processing unit. The hardware protocol processing unit performs protocol processing on the reception frame to write the first identifier to the storage unit, and perform the protocol processing on the transmission frame to read the second identifier from the storage unit. The software protocol processing unit performs the protocol processing on the transmission frame to write the second identifier to the storage unit, and perform the protocol processing on the reception frame to read the first identifier from the storage unit.
摘要:
There is provided with a video processing method including: writing first video signals representing an input video frame alternately into first and second storage regions every input video frame; reading out the written first video signals from either the first storage region or the second storage region; generating second video signals representing an output video frame including a video image represented by the first video signals read out; acquiring write region information indicating either the first storage region or the second storage region into which writing is being performed, before reading is performed; acquiring write location information indicating a location on the first or second storage region, associated with the first video signal which is being written, before reading is performed; and deciding either the first storage region or the second storage region from which reading should be performed, by using the write region information and the write location information.