Abstract: A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption key KPcard(1) of memory card 110 based on session key Ks, and applies the encrypted key to a server via data bus BS3. A memory 1412 receives from a server data such as license key Kc, license ID data License-ID and user ID data User-ID encrypted with a public encryption key KPcard(1) differing for each memory card for storage, and receives encrypted content data [Dc]Kc encrypted with license key Kc from data bus BS3 for storage.

Abstract: A memory card 110 extracts a session key Ks from the data applied onto a data bus BS3 by carrying out a decryption process. An encryption processing unit 1406 encrypts a public encryption key KPcard(1) of memory card 110 based on session key Ks, and applies the encrypted key to a server via data bus BS3. A memory 1412 receives from a server data such as license key Kc, license ID data License-ID and user ID data User-ID encrypted with a public encryption key KPcard(1) differing for each memory card for storage, and receives encrypted content data [Dc]Kc encrypted with license key Kc from data bus BS3 for storage.

Abstract: A light guiding plate is manufactured with accuracy and at low cost. This invention comprises a cylindrical roller, which has a heater built-in, rotating while fixing a stamper having a dot pattern formed on its surface, substrate fixing means for reciprocating along a lower portion of the cylindrical roller in accordance with rotation of the cylindrical roller as fixing a resin substrate, and pressing means for pressing the stamper, which is fixed to the cylindrical roller, onto a surface of the resin substrate, which is fixed to the substrate fixing means, with a constant pressure.

Abstract: It is an object to provide a stamper manufacturing method capable of shortening a time taken for manufacturing a stamper without requiring special equipment such as a dry etching device. The stamper manufacturing method comprises the steps of forming a photoresist layer (6) on one of surfaces of a conductive substrate (1), exposing a desirable portion of the photoresist layer (6), developing the photoresist layer (6), forming an electroforming body (8) on the substrate (1) in a portion from which the photoresist layer (6) is removed at the developing step, and carrying out washing to remove the photoresist layer (6) from the substrate (1).

Abstract: A recorded medium reproducing apparatus that is capable of loading a plurality of various types of recorded media, and is such that it is possible to simultaneously display, in an easy-to-understand form for the user, for each recorded-medium accommodating unit whether or not it contains a recorded medium, and the type of recorded medium accommodated.

Abstract: A digital audio signal distortion detecting device is provided for estimating the distortion based on the linearity error of an analog/digital converter at the time of analog/digital conversion from a digital audio signal converted from analog to digital by the analog/digital conversion having linearity error.

Abstract: An electronic device having operating buttons is provided. The operating buttons can be identified only by touching on the operating button even under a condition being incapable of visually recognizing such as a case of operating the operating buttons by a visual handicapped person, a case of operating the operating buttons in a dark place, or the like.

Abstract: A DVD recording apparatus that can record the video data taken with a video camera directly on an optical disk in a format reproducible on a DVD video playback device without using an intermediate medium, wherein a controller instructs a data recording unit to secure a reserved area on a recording medium, instructs a data formatter to convert content data compressed by a data compressor into at least one video title set, instructs the data recording unit to sequentially record the video title sets in an area following the reserved area on the optical disk, and after the video title sets have been recorded, instructs the data formatter and the data recording unit to record a video manager behind the reserved area, and after the video manager has been recorded, instructs the data formatter and the data recording unit to record volume and file structure data in front portion of the reserved area.

Abstract: A compact disk drive unit capable of changing disks in a very short time. An access mechanism is provided for transferring a disk between a rack and a plurality of disk driving mechanisms, wherein the access mechanism is pivotally supported by a central shaft which is approximately parallel with a central shaft of the rack. A disk transfer means is provided to selectively face the rack and the disk driving mechanisms to transfer a disk between them. The disk driving mechanisms are radially disposed around the central shaft of the access mechanism to face the revolving access mechanism at a preset distance.

Abstract: There is provided an optical disk reproducing apparatus comprising a pickup component for detecting digital audio data from an optical disk, a storing component for temporarily storing the digital audio data detected by the pickup component, an input component for inputting the reproducing direction and reproducing speed of the digital audio data, a control component for controlling reading and writing so as to control the reading direction and reading speed of the digital audio data stored on the storing component based on the reproducing direction and reproducing speed inputted from the input component, and a signal processing component for converting the digital audio data read from the storing component into an analog audio signal and outputting the analog signal, wherein the storing component is for storing the digital audio data before and after the digital audio data to be read by the control component.

Abstract: A recording device that can continuously record information data onto a plurality of information media without recording any particular information pertaining to continuous recording and without losing any information data is disclosed. The device records identical information overlapping onto two separate media for a predetermined time period.

Abstract: The present invention makes it possible to reproduce an optical disc in random reproduction or programmed reproduction without interrupting reproduction, even though discs such as a DVD or CD-I with an interactive function are not removed from the roulette. A mechanical unit 1 selects a target optical disc 103 to be reproduced from among a plurality of optical discs accommodated in a roulette 702. A disc detection unit 204 detects the type of the optical disc which is selected as the target to be reproduced. A system controller unit 5 allows reproduction only in a case where the target optical disc to be reproduced is a CD-DA, when the reproduction mode entered to the user interface block unit 6 is either a random-reproduction mode or a programmed-reproduction mode.

Abstract: A voice reproduction apparatus and voice reproduction system for providing guide voice corresponding to a moving direction of a user, for example a visually handicapped person, in a theme park or the like. The voice reproduction apparatus comprises: a receiving part for receiving an identifying signal; an identifying signal discriminating part that discriminates the identifying signal received in the receiving part and discriminates a combination of an identifying signal received and an identifying signal received subsequently; a voice data storage part for storing voice data, relating the voice data to the combination of the received identifying signals; a voice reproduction part reproducing the voice data stored in the voice data storage part; and a reproduction control part that reads out, from the voice data storage part, voice data corresponding to the combination discriminated by the identifying signal discriminating part, and causes the voice reproduction part to reproduce the voice data.

Abstract: The reproducing device is prevented from being taken out because the reproducing device becomes controllable by operation of the device only when a visitor who borrowed the reproducing device enters through a specified entrance and that the reproducing device becomes uncontrollable by operation of the device when the visitor has come out of the exit. When a receiving means of the reproducing device receives an ID code signal for enabling control by a command from an operation means of the device, the reproducing device becomes controllable by a command from the operation means. When the receiving means receives another ID code signal for disabling control by a command from the operation means, control by a command from the operation means is disabled and a reproducing means of the reproducing device outputs voice information requesting a return of the device.

Abstract: The present invention provides a frequency control device for following frequency deviation of OFDM (Orthogonal Frequency Division Multiplexing). On metrics obtained by discrete Fourier transform by a discrete Fourier transform section 1200, calculation is performed to decide which direction, upward or downward, a center of the energy distribution of the obtained metrics deviates from a theoretical center of frequency, to obtain a frequency difference, and an AFC signal in accordance with the frequency difference is generated in the control signal generating section 1350.

Abstract: An optical disc device in which a reproduction speed of audio information recorded in a track (or disc) of a mini-disc (MD) etc. can be easily changed. Reproduction speed information is recorded in a track name area (or disc name area) of UTOC area of an MD etc. At the time of reproduction, the audio information is reproduced at a speed according to this reproduction speed information code. As a result, it is possible to reproduce audio information at a speed according to the reproduction speed information code, for each track (or each disc).

Abstract: An optical disc reproducing apparatus which is useful and can preliminarily read and edit audio data to be reproduced and output the edited data is provided. The optical disc reproducing apparatus comprising: reproducing means for reproducing recording data of an optical disc; storing means for storing the recording data reproduced from the optical disc; input means for inputting an address of the recording data stored in the storing means; output means of at least one system for outputting the recording data stored in the storing means; and control means for controlling so as to read the recording data from a start address inputted by the input means and output the read data from the output means.