Abstract:
To provide a more flexible and higher level visualization technique for combining a plurality of analysis methods and visual representations, a view composition system, for combining a plurality of visual representations, includes a view manager for managing as a view a set of data for individual visual representation, a view retriever for retrieving from a plurality of views those views that can be combined, and a view composer for combining the views obtained by the view retriever. Optionally, a view displayer, displays the view produced by the view composer. The view composition system can combine a plurality of views using the superimposition of views and neighboring dimensions that have compatible domains.
Abstract:
A dynamic memory including a first sense amplifier circuit directly connected to a bit line of a memory cell, a second sense amplifier directly connected to a data input/output circuit, a switching circuit connected between the first sense amplifier circuit and the second sense amplifier circuit. In a reading operation, the switching circuit is controlled to separate the first sense amplifier circuit and the second sense amplifier circuit from each other after data is read out from the memory cell, so that the read-out data is amplified by the second sense amplifier circuit and outputted from the second sense amplifier circuit to an external of the memory. On the other hand, the first sense amplifier circuit amplifies the read-out data and writes back the read-out data to the memory cell. In the writing operation, the switching circuit is controlled to interconnect the first sense amplifier circuit and the second sense amplifier circuit to each other, so that data to be written from an external is written into the memory cell through the first and second sense amplifier circuits.
Abstract:
In order to efficiently thread n chronologically ordered documents, a similarity among the n documents is calculated and the similarity is employed to create a similarity matrix using time constraints, and is converted into an adjacency matrix for identifying a relationship among the n documents. By applying this threading method that employs the time constraints, a large quantity of article data can be efficiently threaded in the O(n) order. Users can easily access a large quantity of data and can understand the contents.
Abstract:
A semiconductor memory includes a plurality of first memory cell arrays, a pair of first common data lines which are provided for the plurality of first memory cell arrays, and a sensing section including a pair of first bipolar transistors whose emitters are respectively connected to the first common data lines and first constant current sources. Each first memory cell arrays includes a plurality of second memory cell arrays, a pair of second common data lines, a first differential amplifier including a second constant current source and a pair of second bipolar transistors whose bases are respectively connected to the second common data lines, whose bases are connected to the second constant current source together, and whose collectors are connected to the first common data lines, and a third constant current source of a second differential amplifier. Each second memory cell arrays includes a plurality of third memory cell arrays, a pair of third common data lines, a pair of third bipolar transistors whose bases are respectively connected to the third common data lines, whose emitters are connected to the third constant current source together to constitute the second differential amplifier, and whose collectors are respectively connected to the second common data lines, and a first control circuit for selectively activating the pair of third bipolar transistors. Each third memory cell arrays includes a pair of bit lines, a plurality of memory cells connected to the pair of bit lines, and a second control circuit for selectively connecting the pair of bit lines to the pair of second common data lines.
Abstract:
A method of control of NC machine tools of the type wherein all control data necessary for preparing machining data is inputted into a control device by key switches provided on an operating board. The data necessary for machining a workpiece stored in a microcomputer contained in the NC machine is reduced to the lowest minimum, while various data, such as the paths of movement of tools during rough machining, rough finish machining and finish machining, actually needed for machining the workpiece are successively computed on the basis of the data stored in said microcomputer in advance. Thus, data associated with a variety of workpieces can be processed with a minimum of memory capacity, and complicated shapes having concaves and convexes can accurately be machined in a simple operation.
Abstract:
A semiconductor memory device having a read word line, a write word line and a sub-word driver operable to select the read word line using a main word signal and an inverse read block signal. The sub-word line selects the write word line using the main word signal and an inverse write block signal. The sub-word driver has a first inverter circuit using the main word signal as an input and outputting the read word line. The sub-word driver has a first transistor having a drain, a source, and a gate connected to the read word line, a low potential power source, and the inverse write block signal, respectively, and a second transistor having a drain, a source, and a gate connected to a power source terminal of the first inverter circuit, a power source, and the inverse write block signal, respectively, and can select the write word line.
Abstract:
A polishing apparatus includes a loading section (14) for placing therein a cassette (12) in which a plurality of polishing objects are housed; a first polishing line (20) and a second polishing line (30) for polishing a polishing object; a cleaning line (40) having cleaning machines (42a, 42b, 42c, 42d) for cleaning the polishing object after polishing and a transport unit (44) for transporting the polishing object; a transport mechanism (50) for transporting the polishing object between the loading section (14), the polishing lines (20, 30) and the cleaning line (40); and a control section for controlling the polishing lines (20, 30), the cleaning line (40) and the transport mechanism (50). The control section determines a polishing start time in each of the first and second polishing lines (20, 30) based on a predicted polishing time in each of the first and second polishing lines (20, 30), a predicted transport time in the transport mechanism (50), a predicted cleaning time in the cleaning line (40) and a predicted cleaning start time to start cleaning by driving the transport unit (44) of the cleaning line (40).
Abstract:
The SRAM cell is formed by an inverter circuit (P1, N1) using a storage node V2 as an input and a storage node V1 as an output, a load transistor P2 connected between a power source VDD and the storage node V2 using the storage node V1 as an input and the storage node V2 as an output, an access transistor N3 connected between a read bit line RBL and the storage node V1, and an access transistor N4 connected between a write bit line WBL and the storage node V2. When the access transistor N4 is controlled by a write word line WWL, the access transistor N4 can be used as holding control means and writing means for the memory cell, making it possible to obtain a semiconductor device capable of operating at a high speed with a small number of elements.
Abstract:
A semiconductor memory apparatus includes an SRAM circuit having first SRAM cells that store data and second SRAM cells that amplify a potential difference of the data and store the potential difference, a word line driver circuit that outputs a first control signal for selecting one of the first SRAM cells to be read/written the data and a second control signal for selecting one of the second SRAM cells to be read/written the potential difference, a sense amplifier circuit that amplifies a potential difference of a read signal output from a bit line pair of the second SRAM cell selected according to the second control signal, and a write driver circuit that outputs a write signal to the bit line pair of the second SRAM cell selected according to the second control signal, and the write signal has a potential difference between bit lines larger than the read signal.
Abstract:
A semiconductor device according to the present invention includes a first memory cell array in which a plurality of first memory cells are arranged as a matrix, data being read from or written to the first memory cells, and a second memory cell array in which a plurality of second memory cells amplifying and storing the data of one of the plurality of the first memory cells arranged in a corresponding column are arranged as a matrix. The first memory cell array and the second memory cell array are arranged face to face in the column direction. An area of the second memory cell is larger than that of the first memory cell. An area of the first memory cell array is twice or more as large as that of the second memory cell array.