摘要:
A system measures a traveling direction of a vehicle based on a direction toward a coordinate position defined by outputs of a geomagnetic sensor from a first coordinate position of a center of a corresponding output circle. The system utilizes a preliminary coordinate position as a preliminarily corrected value of the first coordinate position, a first value indicative of accuracy of the preliminary coordinate position and a second value which is variable depending on a variation in a magnetization level on a vehicle body. The system derives a finally corrected value of the first coordinate position based on the preliminary coordinate position and a latest value of the finally corrected value which has been derived in a prior execution of the system, by changing a rate which determines a point of the current finally corrected value between the latest finally corrected value and the preliminary coordinate position.
摘要:
A bird's eye view commonly used in a flight simulation is applicable to an apparatus and method for navigating a vehicle running on a set route of travel to a set destination using a (color) display unit according to the present invention. The bird's eye view of a road map surrounding a present position of the vehicle has a viewing point placed at a predetermined position on an upper sky in a direction opposite to the set destination with the present position of the vehicle as a reference and has a line of sight looking down over the road map so that a part of the road map surrounding the present position of the vehicle can be viewed in an extended scale form and the remaining part of the road map remote from the present position and nearer to the set destination can be viewed in a gradually reduction scale form.
摘要:
A bird's eye view commonly used in a flight simulation is applicable to an apparatus and method for navigating a vehicle running on a set route of travel to a set destination using a (color) display unit according to the present invention. The bird's eye view of a road map surrounding a present position of the vehicle has a viewing point placed at a predetermined position on an upper sky in a direction opposite to the set destination with the present position of the vehicle as a reference and has a line of sight looking down over the road map so that a part of the road map surrounding the present position of the vehicle can be viewed in an extended scale form and the remaining part of the road map remote from the present position and nearer to the set destination can be viewed in a gradually reduction scale form.
摘要:
In an apparatus and method for guiding a vehicle occupant from a present position of the vehicle to a destination to which the vehicle occupant desires to reach, optimum routes of travel from the present position to respective intersections surrounding the present position of the vehicle are already searched and stored when the vehicle stops at the present position of the vehicle with a vehicular ignition switch turned off. Then, when the ignition switch is turned on and the vehicle occupant sets the destination, the optimum routes from the set destination toward the present position are searched on the basis of the road map data and result of search of the optimum routes of the respective intersections surrounding the present position of the vehicle. When the optimum route from the set destination to the present position of the vehicle is searched, the display unit superimposes and displays the present position of the vehicle and the optimum route to the destination on the road map so as to quickly start the guidance of the route from the present position to the destination. In the embodiment, if the set destination corresponds to one of registered points of locations, the present position and the optimum route to the destination are immediately displayed on the road map after the destination is set.
摘要:
A system for measuring a traveling direction of a vehicle includes a geomagnetic sensor and a gyro sensor. The system utilizes first and second indices for deriving the vehicle traveling direction. The first index is indicative of a disturbance of the geomagnetic field on a short distance basis, and the second index is indicative of a disturbance of the geomagnetic field on a long distance basis. The system varies a rate of dependence upon the geomagnetic sensor and the gyro sensor based on values of the first and second indices when calculating the vehicle traveling direction.
摘要:
In an apparatus for detecting a driving azimuth of a vehicle, a gyroscopic sensor signal and a geomagnetic sensor signal are acquired. When the vehicle is driven in a disturbed geomagnetic area such as a straight road, the acquired geomagnetic sensor signal does not correctly reflect the actual driving azimuth of the vehicle. Moreover, the gyroscopic sensor signal drifts over time. When the vehicle is in such a disturbed geomagnetic area, a variation amount in the acquired geomagnetic sensor signals is subtracted from another variation amount in the acquired gyroscopic sensor signals to obtain a driving azimuth similar to the actual driving azimuth.
摘要:
To allow inspecting whether a security check of a planned outgoing email is finished in an outgoing email check system, a check data providing apparatus 2 of an outgoing email check system 100 stores check information distributed from a check information management apparatus 1, appends check data generated based on the check information to a header of a checked planned outgoing email, and transmits the email to an email transmitting apparatus 9. A check data inspecting apparatus 3 stores the check information distributed from the check information management apparatus 1, inspects the check data extracted from the planned outgoing email received from the email transmitting apparatus 9 based on the check information, determines that the transmission is permitted when the check data of the planned outgoing email matches the check information, and determines that the transmission is rejected when the check data does not match the check information. The email transmitting apparatus 9 executes a transmission process only for the planned outgoing email for which the transmission is permitted.
摘要:
A semiconductor device has a semiconductor substrate and a first electrical fuse and a second electrical fuse, which are provided on the semiconductor substrate. The first electrical fuse has a first upper layer wire and a first lower layer wire formed in different wire layers, and a via for connecting the first upper layer wire to the first lower layer wire. The second electrical fuse has a second upper layer wire and a second lower layer wire formed in different wire layers, and a via for connecting the second upper layer wire to the second lower layer wire. The semiconductor device has a connection portion for connecting the above described first upper layer wire of the first electrical fuse to the second lower layer wire of the second electrical fuse. The connection portion connects the first electrical fuse and the second electrical fuse in series.
摘要:
In a method of manufacturing a semiconductor device, element properties of an element property extraction pattern formed on a semiconductor wafer is extracted as element properties of a current control element corresponding to the element property extraction pattern. A supply energy to the current control element is set which is formed between nodes on the semiconductor wafer, based on the extracted element properties. The set supply energy is supplied to the current control element to irreversible control an electrical connection between the nodes through the device breakdown by the current control element.
摘要:
An object of the present invention is to make available a pivoting display device which enables a display unit to be assuredly stowed even by using a relatively small elastic component, and which has enhanced reliability and is space-saving. When a power switch becomes off, a monitor which can be stowed is swung by urging force from a coil spring. In an initial stage in which counter-electromotive force Vm induced by a motor is greater than on-voltage of a FET, the counter-electromotive force Vm acts as rotation resistance for the motor. When the monitor approaches a stowage position, the rotating speed of the motor is reduced. Therefore, bias voltage of the FET is reduced due to reduction of the counter-electromotive force Vm, and the braking force imposed on the motor by the counter-electromotive force Vm is gradually reduced, thereby increasing pivoting speed.