Abstract: An information processing apparatus capable of easily adjusting parameter values of operation elements by multi-touch operation. Operation elements are displayed on a touch panel. A CPU detects a touch on a first operation element, like a first fader, as a first touch. When detecting a touch on a second element, like a second fader, as a second touch while the first touch is maintained, the CPU reflects a parameter value set on the first operation element onto a parameter value of the second operation element.

Abstract: An edit processing apparatus for enhancing user operability. The edit processing apparatus has an output device for displaying a target to be edited; and a CPU that displays on the output device edit menus for the target in accordance with a relative positional relationship between a position of the target and a cursor position on the output device and a frequency of selection made at the cursor position in the past.

Abstract: A storage device has a data erasing function. A controller of a storage device, such as an USB, has a lost timer section and an emergency timer section. Both timer sections halt clocking operation as a result of initiation of use of the storage device by an authorized user. The lost timer section commences clocking operation as a result of completion of use of the storage device by the authorized user. The emergency timer section commences clocking operation as a result of unauthorized removal of the storage device. When either the lost timer section or the emergency timer section outputs a count-up signal, data in flash ROM are erased.

Abstract: An optical disk apparatus which records data on the basis of a predetermined minimum amount of recording data. Recording data supplied from an external device is stored in a buffer memory and then encoded and recorded on an optical disk. The data is recorded in units of one ECC block (sixteen sectors). When the buffer memory has a free space corresponding to data amount of less than one ECC block, a system controller supplies a request for data in a data amount of the free space to the host device to store data corresponding to one ECC block in the buffer memory, as a result of which data filling by means of access to the optical disk is prevented.

Abstract: An optical disc apparatus includes a buffer memory for shared use between write data and read data. Upon receipt of a write command from an external host device, a system controller stores, in a buffer memory, write data attached to the write command, and, after storing the write data, supplies the write data to an optical pickup. When a read command is received after the receipt of the write command, execution of the write command is interrupted at a predetermined time, to store read data retrieved from the optical disc in a recorded area of the buffer memory. Further, a segment of the write data is recorded, and pre-read data retrieved from the optical disc is also stored in the area of the buffer memory, to improve a data hit rate.

Abstract: An optical disk drive that performs logical overwrite and that enables reconstitution of arbitrary data acquired before logical overwrite. When data are written over a recorded area, the data are alternately recorded in an unrecorded user data area, thereby performing logical overwrite processing. Every time logical overwrite is performed, a system controller cumulatively prepares a correlation list consisting of an old physical address achieved before logical overwrite, an alternately-recorded new physical address, and a data length acquired before logical overwrite and records the thus-prepared list into an optical disk. When logical overwrite is performed a number of times, arbitrary data achieved before logical overwrite are reproduced by sequential reference to the old physical address of the correlation table.

Abstract: A storage device has a data erasing function. A controller of a storage device, such as an USB, has a lost timer section and an emergency timer section. Both timer sections halt clocking operation as a result of initiation of use of the storage device by an authorized user. The lost timer section commences s clocking operation as a result of completion of use of the storage device by the authorized user. The emergency timer section commences clocking operation as a result of unauthorized removal of the storage device. When either the lost timer section or the emergency timer section outputs a count-up signal, data in flash ROM are erased.

Abstract: An optical disc apparatus includes a buffer memory for shared use between write data and read data. Upon receipt of a write command from an external host device, a system controller stores, in a buffer memory, write data attached to the write command, and, after storing the write data, supplies the write data to an optical pickup. When a read command is received after the receipt of the write command, execution of the write command is interrupted at a predetermined time, to store read data retrieved from the optical disc in a recorded area of the buffer memory. Further, a segment of the write data is recorded, and pre-read data retrieved from the optical disc is also stored in the area of the buffer memory, to improve a data hit rate.

Abstract: An optical disk apparatus which records data on the basis of a predetermined minimum amount of recording data. Recording data supplied from an external device is stored in a buffer memory and then encoded and recorded on an optical disk. The data is recorded in units of one ECC block (sixteen sectors). When the buffer memory has a free space corresponding to data amount of less than one ECC block, a system controller supplies a request for data in a data amount of the free space to the host device to store data corresponding to one ECC block in the buffer memory, as a result of which data filling by means of access to the optical disk is prevented.

Abstract: A recording apparatus for an erasable optical disk, which includes: a first part which measures a modulation degree of a signal reproduced from an area of the optical disk at a time of overwriting first data recorded in the area with second data; a second part which determines a first write power level corresponding to the modulation degree measured by said first part based on a relation between write power levels and modulation degrees of signals reproduced from a test recording area of the optical disk, the signals being recorded therein with the corresponding write power levels different from one another; a third part which obtains a target modulation degree corresponding to a type of and a recording rate for the optical disk from one of tables prestoring modulation degrees corresponding to optical disk types and recording rates; and a fourth part which obtains a write power level for overwriting from the first write power level based on a comparison between the target modulation degree and the modulation

Abstract: A recording apparatus for an erasable optical disk includes: a first determination part which determines a maximum of modulation degrees of signals reproduced from a test recording area of the optical disk, the signals being recorded in the test recording area with corresponding write power levels different from one another; and a second determination part which determines an optimum write power level corresponding to a target modulation degree obtained from the maximum of the modulation degrees based on a relation between the modulation degrees and the write power levels, wherein the recording apparatus records data on the optical disk with the optimum write power level.

Abstract: A recording apparatus for an erasable optical disk includes: a first determination part which determines a maximum of modulation degrees of signals reproduced from a test recording area of the optical disk, the signals being recorded in the test recording area with corresponding write power levels different from one another; and a second determination part which determines an optimum write power level corresponding to a target modulation degree obtained from the maximum of the modulation degrees based on a relation between the modulation degrees and the write power levels, wherein the recording apparatus records data on the optical disk with the optimum write power level.

Abstract: A recording apparatus for an erasable optical disk, which includes: a first part which measures a modulation degree of a signal reproduced from an area of the optical disk at a time of overwriting first data recorded in the area with second data; a second part which determines a first write power level corresponding to the modulation degree measured by said first part based on a relation between write power levels and modulation degrees of signals reproduced from a test recording area of the optical disk, the signals being recorded therein with the corresponding write power levels different from one another; a third part which obtains a target modulation degree corresponding to a type of and a recording rate for the optical disk from one of tables prestoring modulation degrees corresponding to optical disk types and recording rates; and a fourth part which obtains a write power level for overwriting from the first write power level based on a comparison between the target modulation degree and the modulation