Xanavi Informatics Corporation

Hitachi, Ltd.

Nissan Motor Company Limited

Hirohisa Miyazawa

Shigeo Nakamura

Mikio Tokuyama

Shigeru Matsuo

Atsushi Saito

Kozo Nakamura

Naoki Satoh

Takashi Yamaguchi

Hiroyuki Kohida

Gaku Sone

Seiichi Kozaki

A multilayered module board with mounted high-frequency electronic components such as a CPU and a graphic circuit is mounted on one face of a base board with mounted low-frequency electronic components. The multilayered module board is a squared multilayered board smaller than the base board. The electronic components are wired with an inner layer-wiring pattern. Connector terminals are solder-jointed to four sides of the multilayered module board. The multilayered module board is mounted to the base board via the connector terminal.

Circuit board device for information apparatus, multilayered module board and navigation system

A navigation apparatus which includes a front image display displaying an image of a front side and a back image display displaying an image of a back side, the each image being one of images stereoscopically overlapped along the line of sight; a front image signal; a measuring unit for measuring a current position of own vehicle; a map storage unit; a controller for controlling each unit, wherein the controller reads map data of a predetermined area and determines if an elevated road exists in the area, wherein when the elevated road exists, the controller checks whether or not the current position of the own vehicle is on the elevated road, and wherein when the current position is not on the elevated road, the front image display draws the image of the elevated road so that an image drawn on the back image display can be visually percepted.

Navigation apparatus, image display method, and program for the image display method

An information processing system includes a display device and a information processing apparatus. The display device includes: a first arithmetic processing unit; a display unit at which information is displayed as a bitmap; and an interface unit that can be connected with the external information processing apparatus. The information processing apparatus includes: an interface unit that can be connected with the display device; and a second arithmetic processing unit that executes a specific type of processing. The first arithmetic processing unit controls the display unit so as to display information related to the specific type of processing transmitted from the information processing apparatus and also executes another type of processing related to the specific type of processing based upon an instruction provided by the information processing apparatus. The second arithmetic processing unit issues an instruction to have the first arithmetic processing unit at the display device execute another type of processing related to the specific type of processing.

Display device, information processing device, and information processing system

In a data access method for accessing data in an on-vehicle information device having an on-vehicle memory unit that allows data stored therein to be read out and overwritten by an external apparatus and an on-vehicle control unit that executes a data read and a data overwrite by controlling the on-vehicle memory unit, supplying power to the on-vehicle information device from the external apparatus when a power switch at the on-vehicle information device is in an OFF state, and reading out the data in the on-vehicle memory unit and overwriting the data through control implemented by the external apparatus.

Data access method and data access apparatus for accessing data at on-vehicle information device

A vehicle-mounted information processing apparatus such as a car-navigation system detects that a key switch of the vehicle has been set up at a Lock position (i.e., the engine is stopped). After that, the apparatus performs data reproduction of data files in an order from the oldest, then re-recording the reproduced data files with no change added thereto. Here, the above-described data files, which are stored within a magnetic disk device built in the apparatus, have been not updated for a constant time-period. This re-recording prevents a data loss caused by a thermal decay in the case where the magnetic disk device is mounted inside the vehicle that is likely to have existed under a high-temperature environment for a long time-period.

Vehicle-mounted information processing apparatus having magnetic disk device

The navigation apparatus includes: a current position detection device that detects a current position; a display device; a storage device having stored therein position information related to points used as guidance points when providing route guidance; and a control device that controls the route guidance provided along a guided route which includes a plurality of predetermined guidance points based upon the current position detected by the position detection device and the position information related to the points stored in the storage device, wherein: as the current position approaches a first guidance point closest to the current position, the control device engages the display device to bring up display of an arrow indicating an angle corresponding to a direction to follow to advance toward a second guidance point after the first guidance point.

Navigation apparatus and computer program product for navigation control

An information device for on-vehicle use, includes: a CPU which is capable of normal operation and of standby operation which achieves low power consumption; a first power supply for use during the normal operation of the CPU; a second power supply for use during the standby operation of the CPU; and a power control device which performs ON-OFF control of the first power supply and the second power supply. And the CPU outputs a first signal to the power control device when the CPU transits from the normal operation to the standby operation; the power control device outputs a second signal to the second power supply which turns the second power supply ON when the first signal has been inputted from the CPU, and outputs a third signal to the first power supply which turns the first power supply OFF after a predetermined time period has elapsed after the output of the second signal; the CPU outputs a fourth signal to the power control device when the CPU transits from the standby operation to the normal operation; and the power control device outputs a fifth signal to the first power supply which turns the first power supply ON when the fourth signal has been inputted from the CPU, and outputs a sixth signal to the second power supply which turns the second power supply OFF after a predetermined time period has elapsed after the output of the fifth signal.

Growing community of inventors

Zama, Japan

Hirohisa Miyazawa