Abstract: A refrigeration device includes: a refrigerator; a heat pipe that includes a condensation unit connected to the refrigerator and adapted to condense a refrigerant, includes an evaporation unit connected to a storage chamber and adapted to evaporate the refrigerant, and includes a piping for circulating the refrigerant between the condensation unit and the evaporation unit; a heat pipe temperature sensor that detects a temperature of the heat pipe; and a control unit that controls driving of the refrigerator based on a result of detection by the heat pipe temperature sensor. The control unit controls the refrigerator so that the temperature of the heat pipe does not fall below a standard boiling temperature of the refrigerant.

Abstract: An RFID tag is provided with an antenna for generating electric power from a carrier wave by a received electromagnetic wave, a semiconductor integrated circuit which is operated by the electric power supplied from the antenna; and a heat generation element for generating heat by the electric power supplied from the antenna, and heating the semiconductor integrated circuit.

Abstract: A refrigeration device includes: a refrigerator; a heat pipe that includes a condensation unit connected to the refrigerator and adapted to condense a refrigerant, includes an evaporation unit connected to a storage chamber and adapted to evaporate the refrigerant, and includes a piping for circulating the refrigerant between the condensation unit and the evaporation unit; a heat pipe temperature sensor that detects a temperature of the heat pipe; and a control unit that controls driving of the refrigerator based on a result of detection by the heat pipe temperature sensor. The control unit controls the refrigerator so that the temperature of the heat pipe does not fall below a standard boiling temperature of the refrigerant.

Abstract: The present invention avoids a case in which a pickup lens and a lens protector come into contact with a structure of a disk cartridge and are damaged. When an operation distance is short and there is a disk cartridge 203 and the disk cartridge 203 is not an exclusive cartridge, a moving range of the pickup 107 is restricted or an actuating operation thereafter is stopped depending upon whether the optical disk medium 101 loaded into the optical disk apparatus is an optical disk medium having a short operation distance, whether there is a disk cartridge 203, and whether a structure of the disk cartridge 203 is prevented from coming into contact with a pickup lens or the lens protector which is exclusive for the optical disk medium having the short operation distance.

Abstract: The present invention avoids a case in which a pickup lens and a lens protector come into contact with a structure of a disk cartridge and are damaged. When an operation distance is short and there is a disk cartridge 203 and the disk cartridge 203 is not an exclusive cartridge, a moving range of the pickup 107 is restricted or an actuating operation thereafter is stopped depending upon whether the optical disk medium 101 loaded into the optical disk apparatus is an optical disk medium having a short operation distance, whether there is a disk cartridge 203, and whether a structure of the disk cartridge 203 is prevented from coming into contact with a pickup lens or the lens protector which is exclusive for the optical disk medium having the short operation distance.

Abstract: An optical disk recording/reproduction device and a disk determination method for an optical disk recording/reproduction device. The disk determination method compares with a threshold value a drive value when the arrival of a focus point at a recording surface is detected during a focus search relative to an optical disk (301) or a drive value during an on-focus state. By this, two or more kinds of optical disks having different substrate thicknesses are determined. The threshold value is determined based on a drive value during an on-focus state when one or more kinds of disks out of the two or more kinds of optical disks become reproducible.

Abstract: An information storage device (2) in an information processing apparatus has a power supply controller (13). The power supply controller (13) operates by being supplied with power from a continuous power supply device (8). When a depressed state of a switch (17 or 18) is changed during stoppage of power supply from a power supply device (7) to the information storage device (2), the power supply device (7) is controlled to supply power to the information storage device (2) or to the information storage device (2) and a control device (3), thereby operating a mechanism (12) for loading/ejecting the removable medium (1).

Abstract: Immediately after firmware is installed in a flash ROM (R2), a CPU (C2) erases adjustment value information required for recording in the flash ROM (R2) in response to a command (3), for example, so that in an optical disk device serving as a removable medium recording/reproducing device, the CPU (C2) cannot receive a command relating to recording, thereby inhibiting the recording function.

Abstract: It is an object of the present invention to provide a disk apparatus capable of securing an effective area of a printed board by setting a moving range of a disk-detecting operation pin to a position where the printed board is not hindered. A chassis outer sheath comprises a base body 10 and a lid. The base body 10 is provided at its rear surface with a lever 110 which is moved by inserting a disk, a rear base 13 is provided at a location which is not superposed with the traverse 30 and at a location covering the printed board 14, an operation pin 114 is provided on a lower surface of the lever, a disk insertion detecting switch 115 is disposed in the vicinity of a rear portion on the printed board 14, the moving range of the operation pin 114 is located closer to the rear surface than a turning fulcrum 111 of the lever 100.

Abstract: An information storage device (2) in an information processing apparatus has a power supply controller (13). The power supply controller (13) operates by being supplied with power from a continuous power supply device (8). When a depressed state of a switch (17 or 18) is changed during stoppage of power supply from a power supply device (7) to the information storage device (2), the power supply device (7) is controlled to supply power to the information storage device (2) or to the information storage device (2) and a control device (3), thereby operating a mechanism (12) for loading/ejecting the removable medium (1).

Abstract: An optical disc recording/reproducing device includes visible information recording control means (109D) for successively moving (S203) an optical pickup (102) from the recording start position at the inner circumference side by a traverse drive circuit (105) and a DC motor (118), and controlling laser light power to start write (S205) of visible information. A tracking drive circuit (104) and a tracking drive system (116) are operated and when the sift amount reaches a predetermined level or above, an optical pickup (101) is moved (S207) by a certain distance in the outer circumference direction by the traverse drive circuit (105) and DC motor (118). The tracking drive circuit (104) and tracking drive system (116) move (S209) the laser spot in the direction of the optical disc inner circumference. A shift amount of the tracking actuator is held when a boundary between the recorded area and an unrecorded area is detected.

Abstract: An optical disk recording/reproduction device and a disk determination method for an optical disk recording/reproduction device. The disk determination method compares with a threshold value a drive value when the arrival of a focus point at a recording surface is detected during a focus search relative to an optical disk (301) or a drive value during an on-focus state. By this, two or more kinds of optical disks having different substrate thicknesses are determined. The threshold value is determined based on a drive value during an on-focus state when one or more kinds of disks out of the two or more kinds of optical disks become reproducible.

Abstract: An optical disc wherein recording can be performed on a label plane even only by an optical disc recording/reproducing device using a direct-current motor as a power supply of an optical pickup in a traverse direction. The optical disc is provided with a visible information recording layer (207), which can record visible information by changing a physical structure by irradiation light of the optical pickup, and a radius position information recording part (201). Therefore, even when an optical disc recording/reproducing device using a direct-current motor as a power supply of the optical pickup in the traverse direction, the contents of the radius position information recording part (201) are read and recorded on the label plane only by the device.

Abstract: A removable medium recording/reproduction device capable of preventing expelling of a removable medium (101) by avoiding cancellation of an expelling prohibiting state even during power-down of the device.

Abstract: The direction in which an information disk apparatus (for example, a DVD-ROM player) is installed is judged without employing a sensor. A controller measures a number of track crossings when a reading unit is moved by a driving unit in a direction corresponding to the radius of an optical disk for a predetermined period of time, and judges a direction in which the DVD-ROM player is installed on the basis of the measured number of track crossings.

Abstract: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means, a track cross direction detection means, a rotation angle detection means, and a count means, detects the track pitch of a disc, evaluates the vibration amount, vibration speed, or vibration acceleration considering the track pitch of the disc, and determines a maximum rotation speed that is lower than the allowable vibration amplitude, vibration speed, or vibration acceleration of the information disc recording/playback apparatus. The present invention also provides a vibration detection method for the information disc recording/playback apparatus. This information disc recording/playback apparatus can perform vibration detection using a single threshold value that is independent of the type of the disc, without using an acceleration sensor, and further, the apparatus can accurately perform vibration detection even when direction detection is difficult.

Abstract: Information about the number of traversed tracks is acquired with a code at a first rotational speed and a second rotational speed in each area provided by dividing one rotation into m (m is a natural number equal to or larger than 1). As to the information about the number of traversed tracks, a difference is calculated between the areas. A value proportionate to the sum of absolute values of the information about the traversed tracks in the areas is used as a vibration detection value proportionate to vibration amplitude.

Abstract: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means, a track cross direction detection means, a rotation angle detection means, and a count means, detects the track pitch of a disc, evaluates the vibration amount, vibration speed, or vibration acceleration considering the track pitch of the disc, and determines a maximum rotation speed that is lower than the allowable vibration amplitude, vibration speed, or vibration acceleration of the information disc recording/playback apparatus. The present invention also provides a vibration detection method for the information disc recording/playback apparatus. This information disc recording/playback apparatus can perform vibration detection using a single threshold value that is independent of the type of the disc, without using an acceleration sensor, and further, the apparatus can accurately perform vibration detection even when direction detection is difficult.

Abstract: The direction in which an information disk apparatus is installed is judged without employing a sensor means. A control means (116) measures the number of track crossings when a reading means (104) is moved by a driving means (109) in a direction corresponding to the radius of an optical disk (102) for a predetermined period of time, and judges a direction in which a DVD-ROM player (101) is installed on the basis of the measured number of track crossings.

Abstract: The present invention provides an information disc recording/playback apparatus which includes a track cross detection means (112), a track cross direction detection means (113), a rotation angle detection means (114), and a count means (115), detects the track pitch of a disc, evaluates the vibration amount, or vibration speed, or vibration acceleration considering the track pitch of the disc, and determines a maximum rotation speed that is lower than the allowable vibration amplitude, vibration speed, or vibration acceleration of the information disc recording/playback apparatus; as well as a vibration detection method for the information disc recording/playback apparatus. This information disc recording/playback apparatus can perform vibration detection using a single threshold value that is independent of the type of the disc, without using an acceleration sensor, and further, the apparatus can accurately perform vibration detection even when direction detection is difficult.