Abstract: Provided is a liquid tank, including: a cylindrical seamless tank body having both end portions being reduced in diameter toward respective end sides; and a plurality of annular baffles provided inside the tank body and arranged at intervals in an axial direction of the tank body, in which at least one of the plurality of baffles is held on an inner peripheral surface of the tank body.

Abstract: A magnetic tape apparatus for controlling a running of magnetic tape, and being able to control a cleaning medium to clean a magnetic head. The apparatus including a feed reel shaft and a take-up reel shaft respectively adapted to hold a feed reel and a take-up reel of the cleaning medium; a magnetic head; a control part controlling the feed reel shaft and the take-up reel shaft so as to reel the cleaning medium; and a cleaning section determining part determining a cleaning section on the cleaning medium that is used for a single cleaning step of the magnetic head. The control part controls the feed reel shaft and the take-up reel shaft to clean the magnetic head for the cleaning section by the cleaning medium.

Abstract: In a magnetic tape apparatus for controlling a running of a magnetic tape to stop at a reference stop position, a control part controls the feed reel shaft and the take-up reel shaft to reel the magnetic tape and a stop position control part displaces a stop position of the magnetic tape from the reference position wherein the control part activates the stop position control part to displace the stop position when the control part stops running the magnetic tape.

Abstract: In a magnetic tape apparatus for controlling a running of a magnetic tape to stop at a reference stop position, a control part controls the feed reel shaft and the take-up reel shaft to reel the magnetic tape and a stop position control part displaces a stop position of the magnetic tape from the reference position wherein the control part activates the stop position control part to displace the stop position when the control part stops running the magnetic tape.

Abstract: A device for receiving a tape cartridge having a reel and a record tape winded around the reel where the record tape has a mounting unit attached to one end thereof includes an engaging unit which engages with the mounting unit, a threader arm which carries the engaging unit together with the mounting unit along a predetermined path to thread the record tape in the device during a threading operation and to unthread the record tape from the device during an unthreading operation, a reel motor which drives the reel of the tape cartridge, and a control unit which controls the reel motor to adjust tension in the record tape during the threading operation and the unthreading operation.

Abstract: An optical disk clamper holding mechanism that holds an optical disk clamper includes a surrounding unit, a flange unit, a rib that touches, when the optical disk clamper moves in the direction of the flange opening, a rim portion of an upper flange unit of the optical disk clamper, the rib protruding inwardly at a position opposite to the flange opening. Since the range of clearance in which the optical disk clamper can move in the optical disk clamper holding mechanism is restricted, the optical disk clamper always fits in the turntable normally and consequently, always clamps the optical disk normally.

Abstract: A library apparatus having a motor driving control circuit including a processor, a motor driver circuit, a relay, a motor abnormal condition detection circuit, a current control circuit, an excess current detection circuit, and an abnormal current monitor circuit. The motor abnormal condition detection circuit is connected to the motor driver circuit, and detects an abnormal condition of at least one of the motor and the motor driver circuit. Upon detecting an abnormal condition, the motor abnormal condition detection circuit outputs a motor abnormal condition detection signal which prompts the current control circuit to regulate the current flowing through the motor driver circuit. If the current control circuit is unsuccessful, the excess current detection circuit outputs an excess current detection signal which triggers the relay to close the power source circuit of the motor driver circuit.

Abstract: A method and system for deriving a travel distance of an object which travels. As one aspect, a travel velocity of the object producing a pulse signal in response to travel of the object on the basis of a number of pulses of the pulse signal per unit time is calculated, and a plurality of unit travel distances corresponding to a plurality of travel states of the object every travel state are calculated. The plurality of travel states are different from each other and the unit travel distance is a travel distance per pulse calculated by dividing the calculated travel velocity by the number of the pulses of the pulse signal per unit time. And the plurality of calculated unit travel distances are memorized individually, from the plurality of memorized unit travel distances, the unit travel distance corresponding to the travel state of the object which is under travel is selected, and the travel distance of the object on the basis of the selected unit travel distance and the pulse signal is derived.

Abstract: A method of processing information of a recording disc among a plurality of recording discs having different standards or recording formats, includes the steps of: selecting and exchanging an objective recording disc to be reproduced among the plurality of recording discs; executing a recording information reproducing operation on the basis of an application program of the selected objective recording disc; and selecting and exchanging the objective recording disc only with respect to the recording discs, having the standard or recording format reproducible by the application program, among the plurality of recording discs after executing the recording information reproducing operation.

Abstract: A navigation device includes measurement unit for measuring a current position of a vehicle and generating a current position data, route collection unit for generating route data on the basis of the current position data, place name extraction unit for extracting place name information with a predetermined interval from a map information in accordance with the current position data, storage unit for storing the route data and the place name information, the stored route data comprising a plurality of block route data each sectioned by the place name information, edit unit for editing the block route data stored in the storage unit, and display unit for extracting the route data from the storage unit and displaying the extracted route data together with the map information.