摘要:
An information processing apparatus includes a hard disk drive including a disk configured to store data therein and a head configured to access the disk and a control unit. The control unit causes the head to be retracted to a home position after a predetermined time period, based on an operation mode, has passed after performing control to cause the head to access the disk.
摘要:
According to one embodiment, there is provided a disk device including a head, a disk, a first motor, and a first circuit. The disk has a recording surface. The first motor causes the head to seek along the recording surface. The first circuit can switch between a first state and a second state. The first state is a state where a current path of the first motor is electrically cut off from a first electricity storage unit. The second state is a state where the current path of the first motor is electrically connected to the first electricity storage unit.
摘要:
The present disclosure aims to appropriately control a recording mode when the end of a rewrite life of a recording apparatus has approached. A video image recording control apparatus according to the present disclosure includes: a recording processing unit configured to record video image data in a recording apparatus by a first recording mode in which video image data captured by an image pickup apparatus is recorded and a second recording mode in which video image data captured when an abnormality has been detected is recorded separately from the first recording mode; and a recording controller configured to restrict the first recording mode for the recording processing unit when the number of times of data rewriting for the recording apparatus has exceeded a first threshold.
摘要:
A disc player includes a reproducing parameter setting/extracting unit, a reproducing state monitor, a reproducing parameter storage unit for storing a reproducing position, a number-of-loadings counter, and a controller for controlling them. The controller, during reproducing, saves information related to a reproducing position into the storage unit, and initializes the counter. In turning on the power, the controller refers to the counter, interprets that contents in the storage unit are ineffective when the value of the counter is 0, and performs resume play when the value is not 0. Thus, a disc player for avoiding repeating of lock is provided. A similar effect can be obtained even when an effective flag for indicating whether contents of the reproducing parameter are effective or a just-after-loading flag for indicating whether it is just after reading the reproducing parameter is used instead of the counter.
摘要:
A data storage medium includes a data structure, called a disk control block, used for administration and control information for the data storage medium. One medium may contain multiple different disk control blocks, each addressing a different function. Each disk control block includes a control block identifier that specifies the function of the disk control block. Each control block also includes a set of standard access control parameters. If a drive encounters an unrecognized disk control block, the drive can still decode the standard control parameters, so that the drive behavior is not inconsistent with the requirements of the unrecognized disk control block.
摘要:
A disk array device that prevents the processing of the host device from being interrupted or delayed by drive idle seek, idle seek being executed by all the drives at approximately fixed intervals. The disk array device predicts the approach of the scheduled times to start idle seek of each of the disk drives 23, 23, . . . and exercises control so that, within the same parity group, idle seek is not executed by two or more drives 23, 23, . . . at the same time. Within the same parity group, one of the drives whose idle seek scheduled start time is approaching is considered in advance to be executing idle seek and hence data access is denied beforehand. When a data read request with respect to the drive 23 that is considered to be executing idle seek is received, the required data is recovered by reading data from all the other drives 23, 23, . . . belonging to the same parity group.
摘要:
Data is recorded on an optical disk. In a prescribed region of the disk, an identifier is provided for indicating whether a barcode-like mark is present or not on the disk. The identifier and the barcode-mark are in different locations on the disk. A control area, in which physical feature information regarding the disk is recorded, is included in the prescribed region.
摘要:
A recording unit is provided, to which a write current is supplied in accordance with information to be stored. The recording unit records the information in a recording medium in accordance with the write current. A temperature detecting unit detects an ambient temperature of the recording medium. A timer monitors time for the temperature detecting unit to detect the ambient temperature of the recording medium at predetermined times. A write-current setting unit sets the write current for the ambient temperature of the recording medium detected by the temperature detecting unit, each time when the temperature detecting unit detects the ambient temperature of the recording medium, the time being obtained from the timer.
摘要:
A disk drive assembly including circuitry for adaptively selecting performance characteristics of the assembly. The performance characteristics are adaptively selected responsive to a balancing of maximizing performance of the assembly while also minimizing occurrences of misoperation. A disk drive assembly of improved characteristics and error correcting capabilities is provided.
摘要:
A CD replay device, which includes an ejection button for controlling the ejection of a CD and which reads data on a surface of the CD. A disk ejection operation is performed when the ejection button has been depressed for a period of time that is less than a predetermined period. The replaying of a CD begins when the ejection button has been depressed for the predetermined period of time or longer.