Sony Corporation

Mitsubishi Electric Corporation

Hidekazu Nakai

Akinori Nishio

Masahiko Hasegawa

Mitsuru Okabe

Takeshi Hachimori

An attaching and detaching apparatus includes a main mounting plate to which a main mounting object is to be mounted, an attachment mounting plate to which an attachment mounting object is to be mounted, and a connecting member between the main mounting plate and the attachment mounting plate. A protrusion projecting toward the connecting member is formed on the main mounting plate. A hole into which the protrusion fits is formed on the connecting member. A first contact surface in the shape of a surface of revolution is formed on the protrusion. A second contact surface in the shape of a surface of revolution is formed on the inner surface of the hole. The first contact surface and the second contact surface are in contact with each other with the central axis of the protrusion coinciding with the central axis of the hole.

Attaching and detaching apparatus, machining device, and machining head

There is provided a power management device including a load current control unit that sets an upper limit on a load current received from a connected feeding device and controls the load current on the basis of the upper limit, and a determination unit that, when the load current control unit has reset the upper limit to a higher value, determines if the upper limit has exceeded a current capacity of the feeding device on the basis of a voltage drop level of an input voltage. The load current control unit resets the upper limit in increments or decrements of a predetermined value, and the load current control unit, when the determination unit has determined that the upper limit had exceeded the current capacity of the feeding device, controls the load current by resetting the upper limit to a value not exceeding the current capacity.

Power management device and power management method

There is provided a power management device including a load current control unit configured to set an upper limit on a load current supplied from a connected feeding device and to control the load current on the basis of the upper limit, and a determination unit configured to, when the load current control unit has reset the upper limit to a higher value, determine if the upper limit has exceeded a current capacity of the feeding device on the basis of a voltage drop level of an input voltage. The load current control unit may reset the upper limit in increments or decrements of a predetermined value, and the load current control unit may, when the determination unit has determined that the upper limit had exceeded the current capacity of the feeding device, control the load current by resetting the upper limit to a value not exceeding the current capacity.

Power management method for determining an upper limit on a load current

The invention provides a storage medium and a downloading method by which data can be downloaded comparatively simply and efficiently. Program information describing a downloading procedure is stored in a storage medium, and the storage medium is provided in this form to a user. When the user utilizes the storage medium, a procedure that can be executed to perform necessary processing without depending upon an operation of the user can be included in the process from accessing to a server to final downloading of desired content data. Consequently, the necessary number of operations by the user can be reduced as much.

Storage medium and downloading method

Battery information is transmitted from a recording and playback apparatus to a host computer. In the host computer, based on the time for which the operation can be continued, corresponding to the current operating status and the remaining battery level, stored in the battery information, a warning is output, the data of a cache memory is written, data writing prohibition is set, and a forced closing process is performed. With this construction, in a system formed of a recording and playback apparatus, such as a CD-R/RW drive unit, and a personal computer, a proper system operation corresponding to the remaining battery level of the recording and playback apparatus is obtained, and the data recorded on the recording medium is prevented from being destroyed as a result of operation stopping due to, for example, the remaining battery level becoming zero.

Information processing apparatus with temperature-dependent battery charging

Battery information is transmitted from a recording and playback apparatus to a host computer. In the host computer, based on the time for which operation can be continued, corresponding to the current operating status and the remaining battery level that is included in stored battery information, a warning is output, the data of a cache memory is written, data writing prohibition is set, and a forced closing process is performed. With this construction, in a system formed of a portable recording and playback apparatus and a personal computer, a proper system operation corresponding to the remaining battery level of the recording and playback apparatus is obtained, and the data recorded in the recording medium is prevented from being destroyed as a result of operation stopping due to, for example, the remaining battery level becoming zero while recording.

Information processing system and information processing apparatus

Battery information is transmitted from a recording and playback apparatus to a host computer. In the host computer, based on the time for which operation can be continued, corresponding to the current operating status and the remaining battery level, which is stored in battery information, a warning is output, the data of a cache memory is written, data writing prohibition is set, and a forced closing process is performed. With this construction, in a system formed of a recording and playback apparatus, such as a CD-R/RW drive unit and a personal computer, a proper system operation corresponding to the remaining battery level of the recording and playback apparatus is obtained, and the data recorded in the recording medium is prevented from being destroyed as a result of operation stopping due to, for example, the remaining battery level becoming zero.

Information processing system in which power supply information of a recording/reproducing unit controls operations of a host computer

A disc reproducing device and a disc reproducing method for reproducing a disc-shaped recording medium (combined disc) on which first data to be reproduced at a first reproducing rate and second data to be reproduced at a second reproducing rate faster than the first reproducing rate are recorded, wherein the first data and second data are recorded in separate areas on the disc. The disc is rotatable at a second reproducing rate. Responsive to a readout command, data is read out from a desired position on the disc, and output data is checked as to whether it is the first data or the second data. If the data is the first data, the output data is stored in the buffer memory unit at the second reproducing rate. On the other hand, the first data of the buffer memory unit is read out at a first reproducing rate, while the second data is accessed if the first data is not being read out from the disc. During reproduction of the combined disc, the disc can be reproduced at a multiple speed to enable the CD-DA data and the CD-ROM data to be read out time-divisionally in parallel.

Disc reproducing apparatus and method

A disk drive capable of determining the diameter of the currently loaded disk in a short time without the use of additional attachments such as optical sensors. Servo gains are first set to permit rotation of a 12-cm CD, and the servo is turned on. The CD is rotated at a steady rotational speed regardless of its diameter. The servo is turned off when a sub-code synchronizing signal is detected from the CD. Acceleration pulses are generated to start accelerating the spindle motor simultaneously with the starting of a timer. The timer is stopped when the next sub-code synchronizing signal is detected, and the servo is again turned on. If the value on the timer is longer than a reference time, the loaded CD is found to be a 12-cm CD and the appropriate servo gains are set for the 12-cm CD; if the timer value is shorter than the reference time, the CD is found to be an 8-cm CD and the servo gains are set accordingly.

Growing community of inventors

Tokyo, Japan

Hidekazu Nakai