Abstract: A display terminal device displays objects arranged in a virtual space on a display device. The display terminal device generates an object identifier indicating an object entered by a user such that the object identifier includes a user identifier. The generated object identifier is, along with the object, transmitted to a drawing device. The display terminal device saves an object and an object identifier received from the drawing device until receiving the transmitted object from the drawing device. A display screen of the display device is refreshed to display the object received from the drawing device.

Abstract: A battery pack includes: an obtaining unit for obtaining computation information for calculating a charge current including temperature information of a battery; a computation unit for computing a charge current for the battery based on the computation information; and a notification unit for notifying a computer of the charge current computed by the computation unit. The notification unit uses a dedicated command to notify the computer of the charge current. The battery pack includes: a storage unit for storing therein a first threshold value and a second threshold value relating to the temperature information, and the computation unit may compute the optimal charge current depending on which of ranges divided by the first threshold value and the second threshold value the temperature information belongs to.

Abstract: This image receiver with a network function includes a control portion controlling a display portion to display a service menu screen at least partially displaying a plurality of network services in the order of use counts (lowest first) or the dates of use (oldest first) at least on the basis of the use counts or the dates of use of the plurality of network services used by the user.

Abstract: An optical disk writing apparatus maintaining appropriate write power in real time with a simple configuration includes a buffer for recording data, a binarization circuit supplying data to the buffer, an LD writing data recorded in the buffer onto a DVD disk, a detector reading out from the DVD disk a signal representing data written by the LD at an arbitrary time during a period starting from when the amount of data recorded in the buffer and not yet written onto the DVD disk becomes zero until the amount of data reaches a predetermined number of ECC blocks, and a servo processor correcting an error in the data read out by the detector for every data amount susceptible to error correction at one time, evaluating the writing of the LD using the corrected signal, and controlling the energy density to be employed in writing data onto the DVD disk by the LD according to its own evaluation.

Abstract: An optical disc device includes a recording power acquiring unit that finds an optimum recording power when data is written in a data area by writing data for calibration in a power calibration area, and a data writing unit that writes data in a data area to be written by using an optimum recording power found by the recording power acquiring unit. A method for acquiring an optimum recording power used by the recording power acquiring unit when an area to be written is a not-yet-recorded area is different from a method for an already recorded area. When an area to be written is a not-yet-recorded area, the recording power acquiring unit finds an optimum recording power. When an area to be written is an already recorded area, the recording power acquiring unit writes preliminary data in a power calibration area and finds an optimum recording power.

Abstract: A battery pack includes: an obtaining unit for obtaining computation information for calculating a charge current including temperature information of a battery; a computation unit for computing a charge current for the battery based on the computation information; and a notification unit for notifying a computer of the charge current computed by the computation unit. The notification unit uses a dedicated command to notify the computer of the charge current. The battery pack includes: a storage unit for storing therein a first threshold value and a second threshold value relating to the temperature information, and the computation unit may compute the optimal charge current depending on which of ranges divided by the first threshold value and the second threshold value the temperature information belongs to.

Abstract: An optical disk device includes a recording power acquiring unit which acquires recording power, a recording unit which records data on an optical disk set in a device body by irradiating laser light of the recording power onto the optical disk, and a laser power control unit which controls power of the laser light. Preferably, the recording power is suited to record data on the optical disk, and the laser power control unit gradually decreases the power of the laser light irradiated in a linking region from the recording power based on a first prescribed condition when recording of data by the recording unit is ended and gradually increases the power of the laser light irradiated in the linking region to the recording power based on a second prescribed condition when the recording of data by the recording unit is started.

Abstract: When recording the picture data or voice data on the hard disk, the encrypted data is generated through the encryption process with the serial number as the key based on the file system, and the encrypted data is recorded on the hard disk. When powered on, the encrypted data is read from the hard disk, the decoded data is generated with the serial number as the key, and the decoded data is determined whether normal or not. If normal, the data can be reproduced, and if abnormal, the data cannot be reproduced.

Abstract: An optical disc device includes a recording power acquiring unit that finds an optimum recording power when data is written in a data area by writing data for calibration in a power calibration area, and a data writing unit that writes data in a data area to be written by using an optimum recording power found by the recording power acquiring unit. A method for acquiring an optimum recording power used by the recording power acquiring unit when an area to be written is a not-yet-recorded area is different from a method for an already recorded area. When an area to be written is a not-yet-recorded area, the recording power acquiring unit finds an optimum recording power. When an area to be written is an already recorded area, the recording power acquiring unit writes preliminary data in a power calibration area and finds an optimum recording power.

Abstract: An optical disk writing apparatus maintaining appropriate write power in real time with a simple configuration includes a buffer for recording data, a binarization circuit supplying data to the buffer, an LD writing data recorded in the buffer onto a DVD disk, a detector reading out from the DVD disk a signal representing data written by the LD at an arbitrary time during a period starting from when the amount of data recorded in the buffer and not yet written onto the DVD disk becomes zero until the amount of data reaches a predetermined number of ECC blocks, and a servo processor correcting an error in the data read out by the detector for every data amount susceptible to error correction at one time, evaluating the writing of the LD using the corrected signal, and controlling the energy density to be employed in writing data onto the DVD disk by the LD according to its own evaluation.

Abstract: An optical disk device includes a recording power acquiring unit which acquires recording power, a recording unit which records data on an optical disk set in a device body by irradiating laser light of the recording power onto the optical disk, and a laser power control unit which controls power of the laser light. Preferably, the recording power is suited to record data on the optical disk, and the laser power control unit gradually decreases the power of the laser light irradiated in a linking region from the recording power based on a first prescribed condition when recording of data by the recording unit is ended and gradually increases the power of the laser light irradiated in the linking region to the recording power based on a second prescribed condition when the recording of data by the recording unit is started.

Abstract: When a CPU does not perform retrieval in S22 yet on that day (decision of YES in S20), the CPU checks a type of a CD-R/RW drive connected and a version of firmware (S21), and makes connection to a site of a maker of the drive (S22), and compares a version uploaded thereto with a version checked in S21 (S23). When the version uploaded is newer, the contents in which version up is performed are displayed (S24) and a user is made to input whether or not to perform version up of firmware (S25). Then, on condition that performance of the version up is inputted (decision of YES in S26), the version up of firmware is performed (S27).