摘要:
A data transmission and reception system and method that make it possible to transmit and receive more types of information without changing the existing communication system include a broadcasting base station which has a subID adding unit, which arranges in the transmission data region the subIDs of the transmission data arranged in the transmission data region, and a transmission processing unit, which performs transmission processing on the transmission data as data transmission cycles. A portable information communication terminal has an input unit, which sets IDs and subIDs, a comparison unit, which has the address information comparison function of comparing the ID arranged in the selection call part and the ID set by the input unit and obtaining the result of the address information comparison, as well as the identification information comparison function of comparing the subID arranged in the transmission data region and the subID set by the input unit and obtaining the result of the identification address comparison, and a data reading unit, which performs reception control on the transmission data based on the address information comparison result and identification information comparison result obtained from the comparison unit.
摘要:
A semiconductor memory enabling a read modify write operation of data, comprising: a memory cell array including a plurality of memory cells arranged in a matrix and able to be written with and read out data; a read address decoding means for independently decoding an address of a read memory cell in response to a read address; a write address decoding means for independently decoding an address of a write memory cell in response to a write address; a data reading means for reading data of a memory cell addressed by the read address decoding means; a data writing means for writing data to a memory cell addressed by the write address decoding means; and an address delay means by which a write address decoded by the write address decoding means is delayed by a predetermined time from a read address decoded by the read address decoding means, wherein the predetermined time is set as a predetermined plurality of times of basic synchronization pulse periods so that the data read modify write operation is accomplished in a pipeline manner by the basic synchronized pulse.
摘要:
An image composing method and apparatus is provided which can compose a mixed image with no increased hardware scale and no reduced processing speed. A subtracting means (13) is used to calculate a difference in pixel value between a first image and a second image, each having three color information components and one additional information component. Each of the first and second image pixel values may have all the pixel values of zero. The result of subtraction is multiplied by a mixing factor in a multiplying means (15). For the mixing factor, any one of the additional information components or fixed values of the first and second image pixel values are selected. The components are of a same value. In a adding means 17, any of two image pixel values is added to the result of multiplication to produce a mixed image.
摘要:
A positioning system for obtaining information concerning a current position of a device even when one is in an underground center or inside a building includes a portable terminal is equipped with a radio-call-reception part having a radio-call-reception function that is a receiving unit which receives data sent from the base station and a positioning function to obtain the primary position data indicating the current position of the device based on data sent from the base station, a GPS-reception part having a positioning function to obtain the secondary position data on measuring the current position of the device based on signals sent from GPS satellites, and a position-data-correction function to correct the secondary position data using the position-correction data sent from the base station, and an information-processing part having a function to perform information processing using position data obtained from the radio-call-reception part and the GPS-reception part.
摘要:
A memory M.sub.i has a storage capacity one-sixteenth of a memory capacity corresponding to the resolution of a display screen. A pixel processor XP.sub.i controls readout and writing of pixel data from or in memory M.sub.i via an input/output port IO.sub.1 and finds a number j of the pixel processor XP.sub.i of a destination area of pixel data to transfer pixel data read from memory M.sub.i via TBus 19 to pixel processor XP.sub.i of the destination area in the sequence of an increasing number j. The pixel data stored in memory M.sub.i is read out by raster scanning so as to be converted into RGB signals by a video processing circuit 17. A Braun tube 18 displays a picture based on the RGB signals.
摘要:
In a content delivery system, delivery of content and charging the fee of the content are performed and managed in a highly secure and effective fashion. If a content-purchasing request is transmitted from a user device to a shop server, a charging process is performed. A user device authentication server, which manages content delivery, converts an encrypted content key KpDAS(Kc) encrypted using a public key of the user device authentication server (DAS) into an encrypted content key KpDEV(Kc) encrypted using a public key KpDEV of the user device. If the charging process is successfully completed, the shop server transmits, to the user device, the encrypted content key KpDEV(Kc).
摘要:
An information processing apparatus including: a plurality of data processing functional blocks each used for carrying out individual data processing; a flow control section configured to execute control of data flows among the data processing functional blocks; and a control section configured to carry out a setting process to set the data processing functional blocks and the flow control section. The control section acquires configuration information in accordance with a task list for data processing to be carried out; carries out the setting process to set the data processing functional blocks and the flow control section on the basis of the acquired configuration information; and constructs a data processing configuration adapted to various kinds of data processing to be carried out.
摘要:
A system for mapping texture data at high speed with flexibility to different applications wherein texture data is sent to a memory interface (MEMIF) thorough a digital differential analyzer (DDA) and a texture mapping unit (TMAP) and loaded to free areas of a Z coordinatory memory (ZBUF) and a drawing data memory (FBUF). A Z coordinate value or drawing data is read/written through a bidirectional port. The TMAP converts texture coordinates into a physical address, reads texture data from dedicated read ports of the ZBUF and the FBUF with the physical address, and maps the texture data. Each of the ZBUF and the FBUF has a DRAM unit and an auxiliary memory. Data of one row of the DRAM unit can be sent to the auxiliary memory means at a time. When desired texture data is not present in the auxiliary memory, data of the entire row of the desired texture data is sent to the auxiliary memory and then read.
摘要:
A semiconductor memory enabling a read modify write operation of data, comprising: a memory cell array including a plurality of memory cells arranged in a matrix and able to be written with and read out data; a read address decoding means for independently decoding an address of a read memory cell in response to a read address; a write address decoding means for independently decoding an address of a write memory cell in response to a write address; a data reading means for reading data of a memory cell addressed by the read address decoding means; a data writing means for writing data to a memory cell addressed by the write address decoding means; and an address delay means by which a write address decoded by the write address decoding means is delayed by a predetermined time from a read address decoded by the read address decoding means, wherein the predetermined time is set as a predetermined plurality of times of basic synchronization pulse periods so that the data read modify write operation is accomplished in a pipeline manner by the basic synchronized pulse.