Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Corporation

Mitsubishi Electronic Corporation

Hiroyasu Negishi

Hiroyuki Kawai

Yoshitsugu Inoue

Junko Kobara

Masatoshi Kameyama

Keijiro Yoshimatsu

Robert Streitenberger

Kentaro Mori

Atsushi Hori

Yoshiyuki Kato

Tomoya Fujita

Akihiko Imagi

Masaki Hamada

Goh Sato

Nobuhiko Mukai

Akira Torii

Ryohei Ishida

Nelson Chan

Tsuyoshi Iizuka

Yuichi Sasaki

A processing control device controls a tool for processing a first workpiece. The processing control device includes a driving unit to drive the tool, an output unit, and a control unit to control the driving unit and the output unit. Processing information obtained by performing preliminary processing on a second workpiece before performing first processing on the first workpiece is transmitted by the control unit to the output unit and accordingly the processing information is outputted from the output unit. The control unit generates a control command for performing second processing that is performed on the first workpiece after the first processing. The control unit controls the driving unit according to the control command.

Processing control device, machine tool, and processing control method

A moving image reproduction unit () generates display object information for each of a plurality of frames, using difference information for each object associated with each frame and reproduces a moving image. An analysis unit () analyzes the difference information for each frame and determines a frame attribute that is an attribute of the frame. When a frame other than a head frame of the plurality of frames is specified as a reproduction start frame from which the reproduction of the moving image starts, the moving image reproduction unit () extracts one of the plurality of frames based on the frame attribute determined by the analysis unit (). Further, the moving image reproduction unit () generates display object information of the reproduction start frame, using the difference information of the frame extracted and the difference information of the reproduction start frame, and starts the reproduction of the moving image from the reproduction start frame.

Information processing apparatus, moving image reproduction method, and computer readable medium for generating display object information using difference information between image frames

A distance information generating unitfor rasterizing minute line segments divided by a curved line dividing unitthrough a combination of straight line cells and corner cells to generate distance information corresponding to a pixelof a display and an edge rasterizing unitfor rasterizing edge information about the minute line segments divided by the curved line dividing unitare disposed, and a mapping unitdetermines whether the pixelis located inside or outside by using the edge information rasterized by the edge rasterizing unit, and maps the distance information generated by the distance information generating unitonto the antialiasing intensityof a componentincluded in the pixelaccording to the results of the inside or outside determination.

Graphic drawing device and graphic drawing method

The geometry processor includes mutually independent first and second external interface ports connected to a host processor, and a rendering processor, respectively, and a geometry calculation core which processes a geometry calculation applied through the first external interface port from the host processor. The geometry calculation core includes a plurality of SIMD type floating point calculating units, a floating point power computing unit, an integer calculating unit, a controller responsive to an instruction from the host processor which controls the plurality of floating point calculating units, the floating point power computing unit and the integer calculating unit to process data from the host processor, and an output controller which outputs the processed data to the rendering processor through the second external interface port.

Geometry processor capable of executing input/output and high speed geometry calculation processing in parallel

A power operation device comprises a bit operation unit or performing a bit shift operation on a logarithmic base bit string from a logarithm operation unit according to an input exponent bit string Y, and for furnishing the shifted logarithmic base bit string as a multiplication bit string. An exponent checking unit checks whether or not the input exponent bit string Y is the i power of a base 2 where i is an integer, and, if so, furnishes a selection signal to direct selection of the multiplication bit string from the bit operation unit. A multiplication bit string selection unit selects and furnishes the multiplication bit string when it receives the selection signal from the exponent checking unit. In contrast, the multiplication bit string selection unit selects and furnishes another multiplication bit string from a multiplier otherwise. An exponential operation unit performs a base-2 exponential operation on the selected multiplication bit string from the multiplication bit string selection unit, i.e., computes 2 where Z is the selected multiplication bit string, and furnishes the computed base-2 exponential value as the power operation-result X .

Power operation device

An output FIFO data transfer control device can comprise a geometric arithmetic core including one integer processing unit or IPU and a plurality of floating-point processing units or FPUs. Each processing unit includes an intermediate buffer or data output buffer for storing a data on an arithmetic result. When an instruction of data transfer from at least one of the plurality of processing units to one output FIFO is issued, a write/read pointer generating unit generates a write pointer identifying a specific location where data on an arithmetic result associated with the instruction is to be stored in the intermediate buffer of at least one of the plurality of processing units. The write/read pointer generating unit also generates a read pointer identifying a specific location where data is to be read out of the intermediate buffer of at least one of the plurality of processing units. A transfer mode setting unit sets a transfer mode identifying which at least one of the plurality of processing units is to transfer data on an arithmetic result, and sequentially furnishes a read enable signal to at least one of the plurality of processing units so as to read out the data from the intermediate buffer of at least one of the plurality of processing units.

Output FIFO data transfer control device

The apparatus comprises an input memory 102 for storing data necessary for geometrical operations, such as coordinate transformation, luminance calculation, and clipping operation of graphics; a global bus connected to the input memory; a plurality of floating process memories connected to the global bus, for receiving data necessary for geometrical operations; a sequencer for transmitting data necessary for geometrical operations, stored in the input memory, to the plurality of floating process memories; and a plurality of floating processing units each connected to a respective one of the plurality of floating process memories, for independently executing geometrical operations, using data transmitted from the floating process memories.

Geometrical operation apparatus for performing high speed calculations

It is judged that a vertex exists within a view volume when values stored in registers (231 to 236) are all '1'. In other words, whether the vertex exists within or beyond the view volume can be judged by whether the values stored in the registers (231 to 236) are all '1' or not. To meet this requirement, a clip code generation/judgment unit (20) comprises a 6-input AND gate (24) which obtains a logical product of the values stored in the registers (231 to 236) to output a judgment signal (M1). With this configuration, a first step for clipping, i.e., the judgment on whether a primitive exists within or beyond a view volume is implemented in hardware, and thereby the operating speed is improved.

Hardware clipping device which compares objects with boundaries via use

An execution processor that can carry out power calculation at high speed includes a base data register, an exponent data register, a multiplier, a multiplication input selector for selecting an input to the multiplier, first and second registers for storing a calculation result of the multiplier, a square root calculation unit, a square root calculation input selector for selecting an input to the square root calculation unit, a third register for storing a calculation result of the square root calculation unit, and a power calculation controller. The power calculation controller checks the integer region of the exponent data register for each bit while providing input/output control of the multiplication input selector, the first register, and the second register, and checks the decimal fraction region of the exponent data register for each bit to provide input/output control of the square root calculation input selector, the multiplication input selector, the first register, the second register, and the third register.

Execution processor for carrying out power calculation

Volume rendering apparatus including a voxel memory, a parameter provider, an address generator, a mapping unit, an image memory and a blender. The voxel memory stores original volume data. A parameter provider calculates a parameter of a volume plane which slices the volume object orthogonally to a direction of view, calculates a parameter of a three-dimensional mapping plane which slices the mapping object according to a point of view coordinate system and converts the three-dimensional mapping plane to a two-dimensional mapping plane. An address generator generates voxel memory addresses and image memory addresses and a mapping unit maps the volume plane on each of the mapping planes. An image memory stores mapping data and rendering data and a blender performs blending of data in the image memory and data on each of the mapping planes and writes the blended data back in the image memory.

Volume rendering apparatus and method

This invention provides a circuit, which performs a high quality mapping operation by giving a perspective transformation effect to a mapping data of a rendering polygon. The circuit has a mechanism to divide edges and mapping data of a figure in a display and calculate a virtual mapping address, a pixel generator to generate a pixel data for pixels inside of the displayed figure and a virtual mapping address of the pixel data, a virtual address converter to convert the virtual mapping address to a mapping address, and a mapping memory to store the mapping data.

Mapping apparatus and method

A straight line generator for line drawing in a discrete coordinate system utilizing the Bresenham algorithm. A first counter holds an X coordinate value and is capable of incrementing and decrementing the X coordinate value and a second counter holds a Y coordinate value and is capable of incrementing and decrementing the Y coordinate value. A region code which depends on the slope of the line within the range of 360 degrees is stored. An error term obtained from the Bresenham algirithm is also stored. Responsive to the region code and the error term, increments of the first and second counters are controlled. Positive and negative added parameters which vary the error are stored in registers. Either of the date in the register is selected in accordance with the sign of the error term so as to be added to the error term.

Growing community of inventors

Tokyo, Japan

Hiroyasu Negishi