Abstract: A hand-held display apparatus including a body which is gripped by a user's hand, and an interface to output image data. A display is also provided which displays an image received from the interface and vertically inverts the image in response to a vertical inversion signal. The device also includes a plurality of sensors, which are to be manipulated by a user's hand, and are disposed in proximity to the display symmetrically around a horizontal axis in relation to the display section. A processor is also provided which outputs the vertical inversion signal and reverses the functionality of at least one of the plurality of sensors.

Abstract: A hand-held display apparatus including a display, and a cursor which moves vertically and horizontally on the display to perform selections from a plurality of menu options. A control section is also provided in proximity of the display and is operable to move the cursor in at least a vertical and horizontal direction. The display apparatus also includes a graphical user interface (GUI) having an upper hierarchy menu selected by operation of the control section in one direction, and a lower hierarchy menu selected by operation of the control section in another direction.

Abstract: A user interface for displaying hierarchical data on a hand-held display device including a first-level display for displaying one or more first-level data items in the hierarchical data, and at least one field associated with each first-level data item, each field configured to display a first-level data sub-item associated with the first-level data item or a subordinate data indicator. The presence of the subordinate data indicator in a field indicates that the field has subordinate data associated with the field, the subordinate data being subordinate to the first-level data items in the hierarchical data.

Abstract: A hand-held display device including a housing which is gripped by a hand, and a display, supported by the housing, which displays an image. The device also includes a plurality of sensors having a concave surface disposed in proximity to the display section on the housing, which can be activated by a user's digit while holding the device in one hand. A processor is also provided in the housing to generate a signal based on a user's input to the at least one of the plurality of sensors to move a cursor displayed on the display in response to the activation of the at least one sensor.

Abstract: Formatting is applied only to a local area which is a part of the entire recordable area of a rewritable disk and which does not include portions where a lead-in area and a lead-out area are to be formed. In other words, only the required minimum area is formatted. The formatted area is extended afterwards as required. Thus, disk formatting is shortened.

Abstract: Formatting is applied only to a local area which is a part of the entire recordable area of a rewritable disk and which does not include portions where a lead-in area and a lead-out area are to be formed. In other words, only the required minimum area is formatted. The formatted area is extended afterwards as required. Thus, disk formatting is shortened.

Abstract: File name conversion method, and apparatus, for converting a first file name that can be distinguished by a given operating system into a second file name that can be distinguished both by the given operating system and other operating systems. The method and apparatus insure that the first and second file names do not already exist on an associated recording medium prior to recording the first file name on the recording medium and prior to converting the first file name to the second file name. Also provided is a recording medium on which is recorded a file conversion program for converting the first file name to the second file name and for searching whether or not the file names exist on the recording medium.

Abstract: An information processing apparatus and information processing method enables a write once type disc to be used as a rewritable recording medium. There can be realized an address control mechanism wherein even if the physical recording position is changed, the logical address of the same block is not changed by controlling the physical recording position on the recording medium on an imaginary address space in correspondence to the logical address. Thus the write once type recording medium can be realized as a rewritable recording medium. In addition, by monitoring the writable residual capacity, the recording medium can record data which is made or being updated in the memory.

Abstract: In an information recording method and its device to sequentially write data on a recording medium on a fixed data basis, a command to write the first data formed of the fixed data basis is transmitted from the fixed file system to the writing means of the recording medium, and an actual write result of the first data is returned from the writing means to the file system delaying for the fixed number of commands from the time of transmitting the first data. By inserting link blocks on the data sequence to be recorded on the recording medium and sequentially writing a plurality of packets, the write position shift can be prevented, and by returning an actual write result delaying for the predetermined number of commands, the data writing that is error retrievable using the write cache can be realized.

Abstract: An information processor and a method of information processing enables a write once type disc to be used as a rewritable recording medium. There can be realized an address control mechanism wherein even if the physical recording position is changed, the logical address of the same block is not changed by controlling the physical recording position on the recording medium on an imaginary address space in correspondence to the logical address. Thus the write once type recording medium can be realized as a rewritable recording medium.

Abstract: An optical disc recording device is disclosed in which RF signals reproduced from a write-once optical disc are detected during track jump for detecting the boundary between a recorded area and an unrecorded area on the write-once optical disc. This defines a roughly defined boundary between the recorded and unrecorded areas which may be searched quickly. A more strictly defined boundary between the recorded and unrecorded areas, may be searched quickly by subsequently employing a binary search method to the roughly detected boundary.

Abstract: In this invention, a partition within a test write area on an optical disc is divided into a plurality of sub-partitions to record test write data by different plural recording laser drive powers within respective subcode frames constituting the sub-partitions to determine an optimum laser drive power for recording from an average value of asymmetry values obtained by reproducing respective data recorded by the plural laser drive powers, thereby making it possible to carry out OPC operations of which number is more than 100 which is the maximum number of the OPC operations in the prior art. Accordingly, also in the case where data recording operations more than the maximum number of the conventional data recording operations, i.e., 100 times of operations are carried out, it is possible to maintain quality of recording data.

Abstract: An optical disc recording device in which RF signals reproduced from a write-once optical disc are detected during track jump for detecting the boundary between a recorded area and an unrecorded area on the write-once optical disc. This defines a roughly defined boundary between the recorded and unrecorded areas which may be searched quickly. A more strictly defined boundary between the recorded and unrecorded areas, may be searched quickly by subsequently employing a binary search method to the roughly detected boundary.

Abstract: An apparatus for recording data signals onto an optical recording medium is disclosed. The apparatus includes a unit for radiating a laser beam onto the optical recording medium, a photo-electric converting unit for converting the laser beam reflected from the optical recording medium into an electrical signal, a first detection unit for detecting whether or not the data signals are recorded on the optical recording medium, a second detection unit for detecting a value of asymmetry based upon an output of the photo-electric converting unit, and a control unit for detecting, prior to recording of the data signals on the optical recording medium, whether or not the data signals are recorded in a region proximate to a region of the optical recording medium in which the data signals are to be recorded.