Otics Corporation

Brother Kogyo Kabushiki-kaisha

Toyota Jidosha Kabushiki Kaisha

Toyota Jidosha Kogyo Kabushiki Kaisha

Aisan Industry Co., Ltd.

Aisan Idustry Co., Ltd.

Masatoshi Sugiura

Naoki Hiramatsu

Koki Yamaguchi

Minoru Iwata

Tadao Mitsuda

Shigetaka Takada

Yukihiro Watanabe

Motohiro Yuge

Hidetaka Nohira

Akio Kidooka

Masaaki Tani

Shinichiro Kikuoka

Yoshiaki Miyazato

Yoshiro Kamo

Keiju Tomoda

Takayuki Maezako

Naoki Hiramutsu

A control apparatus is applied to an internal combustion engine equipped with a plurality of cylinders, a variable valve actuation system capable of switching the operation mode of intake and exhaust valve between an inactive mode and an active mode on a cylinder-by-cylinder basis, and a fuel injection valve capable of supplying fuel to each cylinder. When the engine speed is equal to or lower than a first engine speed, the control apparatus performs cylinder deactivation in the internal combustion engine by skip firing control. When the engine speed is higher than the first engine speed, the control apparatus performs cylinder deactivation in the internal combustion engine by fixed deactivated cylinder control.

Control apparatus for internal combustion engine

An internal combustion engine includes: a head cover covering a cylinder head; and a variable valve actuation mechanism. The variable valve actuation mechanism includes: a cam placed inside the head cover and rotating with a camshaft extending in a rotation axis direction; and an intermediate arm placed inside the head cover and sandwiched between the cam and a rocker arm. A pair of side through-holes, which are provided for a support rod supporting the intermediate arm to pass through, are formed in side portions of the head cover so as to face each other along the rotation axis direction.

Internal combustion engine and method of assembling thereof

A variable valve mechanism includes a first cam and a second cam, a main arm that drives a valve when swinging, a first sub arm that swings when pressed by the first cam, a second sub arm that swings when pressed by the second cam, and a switch device. The switch device includes a first switch pin that moves between a first coupled position between the main arm and the first sub arm and a first uncoupled position, and a second switch pin that moves between a second coupled position between the main arm and the second sub arm and a second uncoupled position. Both switch pins are arranged so as to be displaced from each other in positions where these switch pins do not overlap at least during a base circle phase in which base circles of both cams act.

Variable valve mechanism of internal combustion engine

A variable valve mechanism of an internal combustion engine includes a cam, a transmission mechanism, a first variable device that controls the transmission mechanism to continuously change at least a maximum lift amount of a lift curve indicating a lift amount of a valve that corresponds to a rotation angle of the internal combustion engine, and a second variable device that controls the transmission mechanism to continuously change at least an operation angle of the lift curve. When the lift curve lies in any condition within a predetermined range that covers all or part of a variable range of the lift curve, an absolute value of a ratio of a maximum lift amount variation to an operation angle variation for a slight change from the condition caused by the first variable device is larger than that for a slight change from the condition caused by the second variable device.

In a variable valve mechanism of an internal combustion engine, when a slider is displaced relative to an input member and an output member in an axial direction, the output member turns relative to the input member in a swing direction, whereby a lift of a valve is increased or reduced. The variable valve mechanism is brought into a lift retaining state when the slider is placed in an idle running range located on a reducing direction side with respect to a boundary position. The lift retaining state is a state where when the slider is displaced in the axial direction, the input member and the output member are displaced together with the slider in the axial direction, so that the relative displacement of the slider and the relative turning of the output member do not occur and the lift of the valve is retained.

A variable valve mechanism of an internal combustion engine includes a plurality of swing members and a variable device that displaces a control shaft to displace a plurality of slider gears of the swing members at a time, thereby changing valve lifts of the plurality of swing members at a time by meshing of helical splines. The swing members include a first swing member for a predetermined cylinder of a plurality of cylinders and a second swing member for a cylinder other than the predetermined cylinder, and a helix angle of the helical splines varies between the first and the second swing members. The variable device displaces the control shaft to a predetermined normal position to perform a normal operation, and displaces the control shaft to a predetermined cylinder cutoff position to perform a cylinder cutoff operation in which the second swing member does not drive a valve.

In a teleconference system, it is determined whether address information of a terminal apparatus operated by a conference participant is included in a particular range. When the address information of the terminal apparatus is within the particular range, first authentication information corresponding to the conference participant is transmitted from a first communicator of the security server to an authentication server. The first authentication information is acquired from the terminal apparatus through the first communicator. The authentication server authenticates usage of a function through a network corresponding to the particular range. When the address information of the terminal apparatus is outside the particular range, second authentication information corresponding to the conference participant is transmitted from the first communicator to the conference management server. The second authentication information is acquired from the terminal apparatus through the first communicator. The conference management server authenticates connection to a conference server that controls the teleconference.

Teleconference system and storage medium storing program for teleconference

The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that includes a roller arm including a roller that rotatably abuts against a cam and a side arm provided at a side of the roller arm and that drives a valve, and a switching device that includes a switching pin and a hydraulic chamber provided inside the rocker arm and that switches a drive state of the valve by displacing the switching pin between a coupling position at which the switching pin extends between the roller arm and the side arm and a non-coupling position at which the switching pin does not extend between the roller arm and the side arm based on variations in hydraulic pressure in the hydraulic chamber. The switching pin is provided on an axis of the roller, and the hydraulic chamber is provided inside the roller arm.

The present invention provides a variable valve mechanism of an internal combustion engine, which includes a rocker arm that is swingably supported by a single pivot, and a switching device that operates the rocker arm to switch a drive state of the valve, in which the rocker arm is configured such that at least in a predetermined drive state, a pressing force of the cam is applied disproportionately to one side of the rocker arm in a width direction with respect to a center line when the cam presses a portion of the rocker arm located away from the center line in the width direction. The variable valve mechanism further includes a swing guide that abuts against the rocker arm so that the rocker arm is guided in a swing direction so as not to be tilted in the width direction.

The present invention provides a variable valve mechanism, which includes a rocker arm including an input member and an output member; a switching device that switches a drive state of the valve by displacing the switching pin between a coupling position at which the switching pin extends between the first pinhole in the input member and the second pin hole in the output member and a non-coupling position at which the switching pin does not extend; and a lost motion spring. A displacement clearance is formed between an inner peripheral surface of the first or second pin hole and an outer peripheral surface of the switching pin to permit the relative displacement in a range of the displacement clearance at a coupled time so that a tappet clearance is not formed with the input member urged toward the cam by the lost motion spring.

When a number of unprocessed compressed images stored in a storage area is smaller than a threshold, the compressed image acquired from the storage area is decoded. When the number of unprocessed compressed images stored in the storage area is greater than the threshold, and when an image type of the compressed image is a predetermined type, the compressed image acquired from the storage area is decoded. When the number of unprocessed compressed images stored in the storage area is greater than the threshold, and when an image type of the compressed image is not the predetermined type, the compressed image acquired from the storage area is not decoded.

Computer readable recording medium, communication terminal device and teleconferencing method

A communication device includes a processor and a memory. The memory stores computer-readable instructions therein. The computer-readable instructions instruct the processor to acquire media data comprising one or more of image data and audio data from an acquiring device. The computer-readable instructions instruct the processor to encode the acquired media data to generate particular encoded data. The computer-readable instructions instruct the processor to determine whether a data size of the particular encoded data is equal to or greater than a threshold data size. The computer-readable instructions instruct the processor to encode the particular encoded data using redundancy processing to generate redundantly-encoded data when determining that the data size of the particular encoded data is equal to or greater than the threshold data size. The computer-readable instructions instruct the processor to transmit the redundantly-encoded data as one or more packets to another communication device.

Communication devices that encode and transmit data, methods of controlling such communication devices, and computer-readable storage media storing instructions for controlling such communication devices

A data processing device including a controller configured to control the data processing device to execute steps of: receiving a data packet comprising a group identification information that identifies a restoration group, with which the data packet is associated, and redundant data for restoring a lost data packet, which is associated with the restoration group identified by the group identification information; determining whether a received amount of data packet associated with the restoration group identified by the group identification information is equal to or greater than a predetermined value; and restoring the lost data packet associated with the restoration group identified by the group identification information when the received amount of data packet associated with the restoration group identified by the group identification information is equal to or greater than the predetermined value.

Data processing devices, computer readable storage media, and methods

An information display apparatus includes a display unit including a non-volatile display medium. The information display apparatus further includes: a temperature detecting unit configured to detect a display unit temperature which is temperature of the display unit; a temperature determining unit configured to determine whether the display unit temperature is outside of a set temperature range which is predetermined based on characteristics of the display unit; and a display control unit configured to perform on the display unit a burn prevention display which is predetermined based on the characteristics, when the display unit temperature is outside of the set temperature range.

Information display apparatus and computer readable medium having information display program

An apparatus for controlling the amount of secondary air fed into an internal combustion engine includes means for controlling the response speed of a secondary air flow control means in accordance with the amount of exhaust gas emitted from the engine. Thus, the equivalent air-fuel ratio can be correctly controlled, without delay, in response to changes in the operating condition of the engine.

Growing community of inventors

Nishio, Japan

Masatoshi Sugiura