Abstract:
A data read/write control system includes memory divided into a plurality of blocks, a write unit, and a read unit. When writing data to one block of the plurality of blocks, the write unit compares a size of the data with a capacity of a blank area of the block. If the size of the data is larger, the write unit erases all data stored in the block and sequentially writes the data to the block from top or end. If, on the other hand, the size of the data is smaller, the write unit sequentially writes the data to the block from an area next to an area where data is stored. When reading data from the block, the read unit sequentially searches the block from top or end to find an area where data is written last, and reads the data stored in the area.
Abstract:
A semiconductor integrated circuit comprises therein a plurality of logic circuits synchronously designed to operate in synchronization with a clock signal, a first power supply wire for supplying a high-potential side power supply voltage from a first input terminal to each logic circuit, a second power supply wire for supplying the high-potential side power supply voltage from a second input terminal to each logic circuit and a third power supply wire for supplying the high-potential side power supply voltage from a third input terminal to each logic circuit. The logic circuit (DFF circuit) includes two stages of latch circuits and a clock signal inversion circuit. Only the clock signal inversion circuit is connected with the first power supply wire, while the second power supply wire is connected with the remaining latch circuits.
Abstract:
A basic cell has a plurality of transistors that are separated from one another for forming an electronic circuit that has a particular function when the transistors are coupled. The basic cell has at least two transistors. One is different in size and orientation from the other.
Abstract:
A composite material having heat resistance at elevated temperatures and excellent mechanical properties to be used for parts of automotive vehicles, especially for pistons, machine parts or aerospace materials is composed of fiber reinforced magnesium alloy as a matrix having a composition of magnesium alloy containing up to 2 to 15 wt %, but preferably 4 to 7 wt % of neodymium or corresponding amount of neodymium-type metals, for example, didymium containing at least 70 wt % of neodymium. The composite material is composed of 70 to 95 vol % of the matrix and 30 to 5 vol % of short alumina fibers as the reinforcement.
Abstract:
A MOS transistor includes a gate electrode formed in a grid pattern, source regions and drain regions each surrounded by the gate electrode, and a source metal wiring connected to the source regions via source contacts and a drain metal wiring connected to the drain regions via drain contacts. The source metal wiring and the drain metal wiring are disposed along one direction of the grid of the gate electrode. Each of the source regions and the drain regions is a rectangular form having its long side along the length direction of each metal wiring. The source metal wiring and the drain metal wiring are each formed in a zigzag manner in the length direction and are respectively connected to the source contacts and the drain contacts.
Abstract:
A power supply circuit generates the internal power supply voltage intVCC from a first power supply capable of supplying a first power supply voltage V1 and a second power supply capable of supplying a second power supply voltage V2, which is lower than the first power supply voltage V1. A first transistor TR1 is provided between the first power supply and an output node, whereas a second transistor TR2 is provided between the second power supply and the output node. A first supply unit supplies the inverted value of an output voltage of the first power supply or the inverted value of a voltage corresponding to the output voltage of the first power supply, to the gate input of the first transistor TR1. A second supply unit supplies the output voltage of the first power supply or the voltage corresponding to the output voltage of the first power supply, to the gate input of the second transistor TR2.
Abstract:
A plurality of flip-flop circuits, having different circuit configurations, which perform an identical digital signal processing are mixed on a single semiconductor substrate. A first flip-flop circuit among the plurality of flip-flop circuits receives a clock signal supplied from outside the flip-flop circuits, through at least two stage inverters, and operates with clock signals outputted from the inverters. A second flip-flop circuit receives the clock signal supplied from outside the flip-flop circuits through at least one inverter having a less number of stages than the number of stages of the inverter contained in the first flip-flop circuit, and operates with at least one of the clock signal and a clock signal outputted from the inverter.
Abstract:
A convenient screening tool and a convenient screening method for obtaining an agent for treating diabetes, a pharmaceutical composition for treating diabetes, and a process for manufacturing the pharmaceutical composition are disclosed. The screening tool is a G protein-coupled receptor, a variation functionally equivalent thereto, or a homologous polypeptide thereof which promotes insulin secretion under a high glucose concentration by activation, or cells transformed with an expression vector comprising a polynucleotide encoding the above polypeptide and expressing the polypeptide.