Nec Corporation

Motoaki Shimizu

Keiichi Chono

Ryuichi Katayama

Yutaka Yamanaka

Satoshi Nakazawa

Hitoshi Imaoka

Naotoshi Iwazawa

Shin Ishiguro

Fumihiro Adachi

Masayuki Yuguchi

Masahumi Miura

Provided is a spatial stabilization apparatus that realizes high spatial stability with a single inertial sensor. The present invention includes: a first object that is rotatably connected to a moving body; a second object that is rotatably connected to the first object; means that measures angular velocity of either the moving body or the first object and outputs a first detected signal that includes one or more components of an orthogonal coordinate system that is fixed to either the moving body or the first object; means that outputs an estimated signal that is estimated or detected angular velocity with respect to a first angle of the first object in relation to the moving body: means that outputs a target angle signal of the first angle; means that outputs a target angle signal of a second angle of the second object in relation to the first object; means that outputs a second detected signal obtained by adding a signal based on the estimated signal and a signal based on the first detected signal; means that controls the first angle based on a signal based on the target angle signal of the first angle and a signal based on the first detected signal; and means that controls the second angle based on a signal based on the target angle signal of the second angle and a signal based on the second detected signal.

Spatial stabilization device, spatial stabilization method, and storage medium for spatial stabilization program

A trajectory generation device includes a control target (), an angle detector (), a command generator () and a trajectory generator (). If a change is generated from a current target angle to a new target angle or if a change is generated from the current target angular velocity to a new target angular velocity in the command generator (), a changed trajectory is regenerated by the trajectory generator () based on the angle up to the new target angle or the angular velocity up to the new target angular velocity, on the basis of the output angular velocity generated by the trajectory generator () at the point the change has occurred and on the basis of a current angle at the point the change has occurred or an output angle generated by the trajectory generator () at the point the change has occurred.

Trajectory generation device, trajectory generation method, and storage medium having trajectory generation program stored therein

A terminal has a visual axis by using which a user points to a target object. An information generating server acquires an internal image or an external image of the target object pointed by a user, and generates a display image which is displayed on the terminal.

Image providing system and image providing method

In an optical disk apparatus for focusing a light beam on a track of an optical disk by using a tracking control loop to perform at least one of recording and reproducing operations upon the optical disk, a loop level calculating unit calculates loop levels of the tracking control loop. A control unit calculates a loop gain of the tracking control loop in accordance with the loop levels of the tracking control loop and compensates for a radial tilt of the optical disk in accordance with the calculated loop gain of the tracking control loop.

Radial tilt compensating optical disk apparatus using tracking control loop gain

Growing community of inventors

Tokyo, Japan

Motoaki Shimizu