摘要:
An image composing and displaying apparatus includes frame memory constituent elements of an identical structure, a video input portion, a video output portion, a controller for selecting connection of each element to the video input or output portion, and an image drawing portion for reading and writing video data from and in the memory elements. The memory elements can be used for the input and output operations and hence the size thereof can be easily expanded; moreover, the numbers of the elements respectively connected to the video input and output portions can be adaptively varied.
摘要:
A graphic data generating apparatus includes a data processor, a graphic memory, and a graphic processor. The data processor outputs instructions to the graphic processor for processing graphic data. The instructions include a drawing instruction for transferring graphic data stored in a predetermined location in the graphic memory to another predetermined location in the graphic memory. The graphic memory stores pixel data defining the graphic data and each of the pixel data having a plurality of bits. The graphic processor performing read out of word data having a plurality of pixel data at a word position of the graphic memory specified by a source memory address, selecting pixel data specified by a source pixel address in the readout word and writing the selected pixel data in the graphic memory at a pixel position specified by a destination pixel address of word data specified by the destination memory address.
摘要:
A high-speed memory employing the pipeline technique is disclosed, in which the minimum operating cycle time is reduced by use of a latch circuit for a small signal using a bipolar transistor. A small-signal latch circuit operating at a signal smaller than an output signal level is inserted between an amplifier circuit for amplifying the data held in a memory cell circuit and an output buffer circuit. A switch signal is also interposed between the latch circuit and the amplifier circuit, thereby shortening the cycle time.
摘要:
The invention relates to a digital data processor based upon the pipeline control system, which is particularly effective when the time required for reading a microprogram is relatively short. A microcycle is based upon the time required for reading the microprogram, and the operations on the data is executed in a pipeline system by dividing it up according to the determined microcycle. This is done by providing a destination latch register on the output side of the arithmetic unit. The invention further deals with the processors in which the destination latch register is provided on the input side of the arithmetic unit, or when the destination latch register is incorporated within the arithmetic unit, and a circuit setup for avoiding any contention for a register that may develop when executing a current instruction and the next instruction is provided in accordance with an added microprogram.
摘要:
A Memory Interface and Video Attribute Controller (MIVAC) is inserted between a dynamic RAM (DRAM) capable of a consecutive data read operation, such as the operation associated with the static column mode, page mode, or nibble mode, and a graphic processor to provide a parallel data processing. A serial data transfer is executed on each data bus between the MIVAC and the DRAM, whereas parallel data transfer is conducted between the MIVAC and the graphic processor. As a result, the graphic processor can be configured with a reduced number of DRAMs so that the graphic processor operates without paying attention to the consecutive data read mode of the DRAM.
摘要:
A character recognition apparatus for inferring the entire character string solely from a user-input handwritten keyword and displaying the inferred result as a candidate character string. The apparatus of the invention comprises: a word string includes a word hierarchy and for recognizing each of the words within the hierarchy; a character transition probability table a4 storing probabilities of transitions from any one character to another, and those pieces of the word identification information which correspond to combinations of characters resulting from the transitions; and an optimization unit for using the character transition probability table in optimizing candidate character strings obtained by a recognition unit. The word dictionary is searched for a word defined by the word identification information which corresponds to the optimized candidate character string, whereby the searched word is retrieved which applies to the hierarchy information and which has yet to be input.
摘要:
To reduce the hardware of the graphics computer in size and reduce the cost of the hardware, the frame buffer and the main memory are united into one unit to process graphics data in the CPU. The frame buffer is arranged in the main memory, and the graphics computer includes a DMAC used to read pixel data from the frame buffer for display, a display used to receive the pixel data and display it on a display device, such as an LCD, etc., and memories used to store the procedure used by the CPU to draw the pixel data in the said frame buffer. Especially, the said memories are formed so that a single function procedure and 2 multifunction procedure can be selected to suit the drawing object. In addition, the single function procedure includes 2 line drawing procedure that uses data tables and 2 multivalue expansion procedure that uses a pattern table and a mask table. Since the frame buffer and the main memory are united into one unit, the CPU can be used to process graphics data. Thus, the graphics computer hardware is reduced in size and the cost of the hardware is reduced.
摘要:
A graphic processing apparatus for generating, displaying or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column addresses within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.
摘要:
A data processor comprising: a bus control circuit adapted to be interfaced with a synchronous DRAM which can be accessed in synchronism with a clock signal; a plurality of data processing modules coupled to said bus control circuit for producing data and addresses for accessing a memory; and a clock driver for feeding intrinsic operation clocks to said data processing modules and for feeding the clock signal for accessing said memory in synchronism with the operations of said data processing modules to be operated by the operation clock signals, to the outside.
摘要:
A graphic processing apparatus for generating, displaying or printing characters and graphic data. A successive column access is used in which a row address is designated for access to a memory and data in different column addresses within the designated same row address are successively accessed and buffer means for buffering a series of data between an access by a processor and an access to a memory is provided. A program and image information for display are stored in a main memory. A frame buffer and the main memory are integrally configured simply and small in size.