Abstract: A geometric compression ratio in an engine main body 1 is set to 15 or less. Injection control means (ECU 40) performs a main injection of injecting fuel near a compression top dead center, and a preceding injection prior to the main injection at a specific region of predetermined load within an operating region on a relatively low-speed side. The injection control means performs, as the preceding injection, a pilot injection of performing injection at a timing such that at least part of a fuel spray reaches outside a cavity 31 on a top face of a piston, and a pre-injection of injecting fuel at a predetermined timing after the pilot injection, to suppress thereby ignition of the fuel injected by the pilot injection and shorten an ignition delay of the fuel injected by the main injection.

Abstract: An engine includes a variable valve mechanism capable of switching a valve characteristic to a first valve characteristic according to which at least one of an operation of pre-opening an intake valve during an exhaust stroke prior to a valve opening time in an intake stroke and an operation of re-opening an exhaust valve during the intake stroke subsequently to the opening/closing thereof during the exhaust stroke is performed, and to a second valve characteristic according to which neither the pre-opening of the intake valve nor the re-opening of the exhaust valve is performed. In the engine, when the valve characteristic is the first valve characteristic, if the presence of a request for switching to the second valve characteristic resulting from an increase in engine load is detected, a pressure reducing operation for reducing the pressure in an exhaust passage of the engine is performed.

Abstract: A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.

Abstract: An automobile-mount diesel engine with a turbocharger is provided, which includes an engine body with the turbocharger, the engine body being mounted in the automobile and supplied with fuel containing diesel fuel as its main component, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, an injection control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve, and an EGR amount control module for adjusting an amount of EGR gas introduced into the cylinder. EGR and fuel injection are adjusted based on speed-load conditions of the engine.

Abstract: An engine 1 includes a variable valve mechanism 18 capable of switching a valve characteristic to a first valve characteristic according to which at least one of an operation of pre-opening an intake valve 14 during an exhaust stroke prior to a valve opening time in an intake stroke and an operation of re-opening an exhaust valve 15 during the intake stroke subsequently to the opening/closing thereof during the exhaust stroke is performed, and to a second valve characteristic according to which neither the pre-opening of the intake valve 14 nor the re-opening of the exhaust valve 15 is performed. In the engine 1, when the valve characteristic is the first valve characteristic, if the presence of a request for switching to the second valve characteristic resulting from an increase in engine load is detected, a pressure reducing operation for reducing the pressure in an exhaust passage 40 of the engine 1 is performed (e.g., a regulate valve 68 is opened).

Abstract: A geometric compression ratio in an engine main body 1 is set to 15 or less. Injection control means (ECU 40) performs a main injection of injecting fuel near a compression top dead center, and a preceding injection prior to the main injection at a specific region of predetermined load within an operating region on a relatively low-speed side. The injection control means performs, as the preceding injection, a pilot injection of performing injection at a timing such that at least part of a fuel spray reaches outside a cavity 31 on a top face of a piston, and a pre-injection of injecting fuel at a predetermined timing after the pilot injection, to suppress thereby ignition of the fuel injected by the pilot injection and shorten an ignition delay of the fuel injected by the main injection.

Abstract: A data transfer method includes reading data from a NAND flash memory in pages into a first buffer, transferring a parity in the data read into the first buffer to a second buffer, after transferring the parity to the second buffer, transferring a main data in the data read into the first buffer to the second buffer, on the basis of the parity, correcting an error in the main data transferred to the second buffer, and transferring an error-corrected main data to a third buffer.

Abstract: An automobile-mount diesel engine with a turbocharger is provided, which includes an engine body with the turbocharger, the engine body being mounted in the automobile and supplied with fuel containing diesel fuel as its main component, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, an injection control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve, and an EGR amount control module for adjusting an amount of EGR gas introduced into the cylinder. EGR and fuel injection are adjusted based on speed-load conditions of the engine.

Abstract: A diesel engine is provided, which includes an engine body to be supplied with fuel containing diesel fuel as its main component, a geometric compression ratio being set to 15:1 or below, a fuel injection valve arranged in the engine body so as to be oriented toward a cylinder of the engine body and for directly injecting the fuel into the cylinder, and a control module for controlling a mode of injecting the fuel into the cylinder through the fuel injection valve. The control module performs a main injection where the fuel is injected to cause a main combustion mainly including a diffusion combustion and performs a plurality of pre-stage injections where the fuel is injected prior to the main injection to cause a pre-stage combustion prior to the main combustion. The control module controls the injection mode of the injections to adjust a heat release rate.

Abstract: A data transfer method includes reading data from a NAND flash memory in pages into a first buffer, transferring a parity in the data read into the first buffer to a second buffer, after transferring the parity to the second buffer, transferring a main data in the data read into the first buffer to the second buffer, on the basis of the parity, correcting an error in the main data transferred to the second buffer, and transferring an error-corrected main data to a third buffer.

Abstract: A semiconductor memory device includes a nonvolatile memory functioning as a main memory unit, a volatile memory functioning as a buffer unit of the nonvolatile memory, a controller, an ECC buffer, a parity syndrome circuit, an ECC control circuit, a multiplexer, and an ECC error position decoder.

Abstract: A semiconductor memory device includes a n-channel type MOSFET in which a drain and a gate are connected to an external power supply and a source and a back gate are connected each other. A node is connected to the source and the back gate of the n-channel type MOSFET, and a detector for detecting an input of the external power supply based on a potential of the node.

Abstract: A semiconductor memory device comprises a n-channel type MOSFET in which a drain and a gate are connected to an external power supply and a source and a back gate are connected each other, a node connected to the source and the back gate of the n-channel type MOSFET, and a detector for detecting an input of the external power supply based on a potential of the node

Abstract: A synchronous semiconductor memory device includes a memory cell array and a command decoder. In the memory cell array, dynamic memory cells are arranged in a matrix form. The command decoder decodes a plurality of commands in synchronism with an external clock signal. The plurality of commands are set by combinations of logical levels of a plurality of control pins at input timing of a first command and at input timing of a second command one cycle after the input timing of the first command. The command decoder includes a first decode section which determines a read operation, a second decode section which determines a write operation, and a third decode section which determines an auto-refresh operation. Setting of an auto-refresh command is determined only by a combination of the logical levels of the plurality of control pins at the input timing of the first command.

Abstract: A semiconductor integrated circuit, comprising: a first output driving part which outputs a data signal in sync with a reference clock signal; a second output driving part which outputs a data strobe signal prescribing a timing of said data signal; and a driving control part which separately controls driving ability of said first and second output driving parts.

Abstract: A synchronous semiconductor memory device includes a memory cell array and a command decoder. In the memory cell array, dynamic memory cells are arranged in a matrix form. The command decoder decodes a plurality of commands in synchronism with an external clock signal. The plurality of commands are set by combinations of logical levels of a plurality of control pins at input timing of a first command and at input timing of a second command one cycle after the input timing of the first command. The command decoder includes a first decode section which determines a read operation, a second decode section which determines a write operation, and a third decode section which determines an auto-refresh operation. Setting of an auto-refresh command is determined only by a combination of the logical levels of the plurality of control pins at the input timing of the first command.

Abstract: A semiconductor integrated circuit, comprising: a first output driving part which outputs a data signal in sync with a reference clock signal; a second output driving part which outputs a data strobe signal prescribing a timing of said data signal; and a driving control part which separately controls driving ability of said first and second output driving parts.

Abstract: A semiconductor integrated circuit device comprises a semiconductor chip, a wiring provided in the semiconductor chip and electrically connected to an external pin and a pin capacitance adjustment circuit configured to variably adjust a capacitance of the wiring.