Abstract: An audio or other programme signal is modified to provide protection against copying on a magnetic tape recorder. The signal from a source (10) is amplified (16) and then subjected to Fourier analysis (11) to determine the signal amplitude in a plurality of subbands across the audible range. The subband containing the component of greatest magnitude is selected on an adaptive basis and applied to a stored psycho-sensorial model (12), which determines the maximum amplitude of interference which can be masked by the selected subband. An anti-copy signal is generated (14) by complex division of the desired interference by a stored representation of the response of a tape recorder (13).

Abstract: An information recording device includes: acquisition elements for acquiring corresponding definition information, arrival time information, and display time information from a primary recording medium; processing elements for converting the display time indicated by the display time information into a display time indicated on the same time axis according to the arrival time information and outputting the processed display time information; and recording elements for recording a second whole stream in the form of the processed display time information which has been output and added to each packet of a plurality of partial streams constituting the second whole stream on a secondary recording medium. On the primary recording medium, the arrival time information indicating the arrival time of each packet and display time information indicating the display time are recorded.

Abstract: Data areas AR1 and AR2, lead-in areas LIN1 and LIN2, and lead-out areas LOUT1 and LOUT2 are provided on a disc. For example, in case of encrypting and recording data into the data area AR2, copyright management information R2 and key information K2 are recorded into the lead-out area LOUT2. Only information in a Q channel of a subcode is recorded in the lead-out area and this area is filled with dummy data. A position of the lead-out is obtained from TOC information. The fact that a light spot has entered the lead-out area can be judged from the information in the Q channel. The copyright management information and key information are recorded by using the lead-out area. The lead-out area is not rewritten or accessed by an ordinary CD player, so that the copyright management information and the key information can be safely held.

Abstract: A recording device executes unattended recording after suspending dubbing when a preset recording time draws near during the dubbing, and saves dubbing-status information showing the suspension position of the dubbing. The recording device reads the dubbing status information after the end of the unattended recording, and resumes the dubbing from the suspension position. If suspension/resumption during the dubbing of a single source content results in a plurality of duplicate contents, the recording device edits the duplicate contents into a single content or a single playback route.

Abstract: A recording medium storing a write protection information, and a write protection method for protecting data recorded on a recordable and/or rewritable disc from unwanted overwriting or erasing. In order for write protection of a disc in a bare state that is usually used in a cartridge having a recognition switch for write-protection, such as a DVD-RAM, write protection information is recorded in a Lead-in area, a Lead-out area or a recording information area other than a user data area of the disc, and the data is protected from unwanted overwriting or erasing using the write protection information. Also, even though the write protection information stored on a disc does not match the state of a recognition switch of a case for write-protection, the data can be prevented from unwanted overwriting or erasing. Thus, the write protection can be ensured when a recordable and/or rewritable recording medium, such as DVD-RAM, DVD-R and DVD-RW, is used in a bare state.

Abstract: The present invention makes it possible to set an operating condition enabling the best recording characteristic to be obtained for any kind of recording media, even in the case where the recording medium is combined with any kind of drive devices. According to the present invention, even in the case where a unknown and new kind of recording medium is loaded into the drive device, a piece of first operating condition information for an optical system suitable for a combination of the drive device and the new kind of recording media is read from a specific read only area provided for the recording medium, and an operating condition enabling the best operating characteristic to be obtained is set by using the first operating condition information, as a result of which even in the case where any kind of recording medium and any kind of drive device are combined, the operating condition for enabling the best recording characteristic to be obtained for the recording medium, can be set in the drive device.

Abstract: When digital image signals inputted through an inputting terminal are recorded on a disc, a medium-related information (a serial number in an TOC) of the disc, read from the disc, with a medium-related information reading section is spectrum-spread in an SS additional information generating section and then digital image signals S2 on which the spectrum-spread medium-related information is superimposed in an SS additional information superimposing section are recorded on the disc. When the signals attempt to be reproduced, the reproduction can be performed in the case wherein the medium-related information superimposed on the image signals recorded on the disc is consistent with the medium-related information of the disc on which the image signals are recorded. Thus, copying of the information signals can be limited to the copying for private use.

Abstract: In a recording apparatus (camcorders, optical disc recorders, etc.), the operator presses down priority designating buttons for designating priorities when recording input image data. An additional information generating section records and holds, in a storage section, additional information indicating priorities of data to be recorded (e.g., “low”, “intermediate”, “high”, or “highest”) which are set, depending on what priority designating button has been pressed down. If recordable remaining space in the storage section detected by the remaining amount detecting section falls below a predetermined value before the start of or during recording of data, a control section overwrites regions in order of priority of data which is stored therein, the lowest first, with data which is about to be recorded or is being recorded, based on the additional information generated by the additional information generating section.

Abstract: The method and apparatus described utilise the fact that CDs manufactured from the same master will have distinctive physical characteristics attributable to the physical manufacturing process of the master to distinguish counterfeit CDs from genuine discs. For a genuine disc, the relative angular orientation of specified sections of the recorded data are determined and recorded. The relative angular orientation of the same sections of data on a test disc are also determined. Where the relative angular orientations are the same it is concluded that the test disc derives from the same source as the genuine disc and is therefore bona fide. Where there is no correlation, the test disc may be identified as counterfeit. The relative angular orientations, or other physical characteristics of the discs, may be physically measured, or may be calculated from information gained by reading the data on the disc. The disclosed technique can also be used to copy protect discs.

Abstract: A recording medium, comprising a lead-in area, a data recording area that is formed on an outer periphery side of the lead-in area and in which a plurality of pieces of content data is recorded, and a lead-out area formed on an outer periphery side of the data recording area, wherein first copyright management information and second copyright management information with which copyrights of the plurality of pieces of content data are managed are recorded at different positions whose secrecies are different from each other.

Abstract: A recording system stores files on a removable, optical record carrier (11). The record carrier has an annular recording area corresponding to a logical data space accessible according to a predefined recording format. The recording system has a control unit (20) for controlling the recording means for storing the files in respective data blocks. A backup unit (32) stores at least one backup file of an original file, and assigns, to the backup file, backup blocks in the logical data space. The backup blocks (305,306,307) are physically positioned remote from corresponding original blocks (302,303,304) of the original file in the logical data space, e.g. by applying a predetermined radial shift. Hence the record carrier is provided with reliable data, wherein the backup blocks and the original blocks form a spatially distributed pattern for avoiding that local disturbances of the recording area affect corresponding blocks of the original blocks and backup blocks.

Abstract: A recorder provides to a recorder/player via a high-speed bus content-related information such as a digital audio signal as information, a content ID being identification information on the digital audio signal and a standard playing time of the digital audio signal. The recorder/player has a controller which stores the content ID into a copy-history information management memory when the same content ID is not existent in the memory. The content ID is held for a period measured by a timer. For this period, the recording function of the recorder/player is limited so that the same digital audio signal cannot be copied at a high speed.

Abstract: The present invention provides a DSV normal controller and a DSV special controller. In only a predetermined region designated on an optical disc, the DSV special control is performed. The DSV special control causes the absolute value of the DSV to increase so that data will be prevented from being normally reproduced. The normal control causes the absolute value of the DSV to converge at 0. When data is reproduced from the optical disc, if the reproduction state of the predetermined region is abnormal, it is determined that the disc is an original disc. An encryption key can be recorded in the predetermined region.

Abstract: A reproduction method and apparatus for reproducing video data and/or audio data from a recordable medium having video data and/or audio data recorded thereon. The video data and/or audio data is generated by superimposing information concerning an attribute of a video signal and/or an audio signal on a signal of digitized video data and/or a signal of digitized audio data. Information concerning a copyright superimposed on the video data and/or audio data is reproduced from the medium, and a type of the medium is identified. Reproduction is stopped in response to a determination that the medium is illegally produced, the determination being based on a combination of the information concerning a copyright which is reproduced and the type of the medium identified.

Abstract: A method for recording data on an optical medium is disclosed. In one embodiment, the method includes receiving a first plurality of frames of data at a Cross Interleave Reed-Solomon Code (CIRC) encoder, encoding the first plurality of frames of data by the CIRC encoder to generate a second plurality of frames of data, generating a set of data to form a Q sub-channel, altering selected data bits in the Q sub-channel to form an encoded Q sub-channel, forming a plurality of control bytes including the encoded Q sub-channel, adding one of the control bytes to each one of the second plurality of frames of data to generate a third plurality of frames of data, encoding selected portions of the third plurality of frames of data by an EFM encoder to generate a plurality of channel frames, and recording the channel frames on the optical medium. This method allows CDs to be recorded that cannot be played by conventional CD players.

Abstract: This DVD replay device with incorporated hard disk includes a DVD drive which reads data from a DVD, and a HDD which performs recording of data upon, and reading of data from, a HD which has a first storage region and a second storage region. Furthermore, this DVD replay device with incorporated hard disk includes a control means which, when dubbing of data is commanded, decides whether or not the data upon the DVD is recorded in the DVD-VIDEO format, and a selection means which receives a selection as to whether the speed of the dubbing should be a first speed or a second speed. And, if the data upon the DVD is recorded in the DVD-VIDEO format, if the second speed has been selected, the HDD records the data recorded upon the DVD into the first storage region of the HD just as it is in the DVD-VIDEO format.

Abstract: A copy-protected optical medium comprising transient optical state change security materials that demonstrating an optical state change when exposed to the wavelengths of from about 770 nm to about 830 nm.

Abstract: Provided is a content play back apparatus including: a play back means for playing content including audio or video; a play list managing means for managing a play list which is a list of identification information on content previously played by the play back means; a blacklist acquiring means for acquiring a blacklist which is a list of identification information on content illegally copied in the past; and a play back restricting means for restricting content play back of the play back means when any of identification information included in the play list is included in the blacklist.

Abstract: A digital dubbing device that compresses and stores music data for each sound unit includes a music data counter that counts the number of samples of music data when the music data is to be compressed, and detects a music data stream located in the end part of the sound unit from the music data based on TOC information of the music data and the number of samples of the music data counted; a data storage unit that stores the music data stream detected; a music data comparator that detects a music data stream identical to the music data stream stored from the music data when dubbing of the music data is interrupted; and a controller that causes the dubbing of the music data to be restarted from music data following the music data stream detected.

Abstract: The present invention is a dubbing device for dubbing data from a portable first recording medium such as a CD-DA (compact disc digital audio) to a second recording medium such as a hard disk drive (HDD), in which dubbing to the second recording medium with a large capacity is automatically carried out when reproducing data from the first recording medium. When data is reproduced from the first recording medium, database means is searched on the basis of identification information for the first recording medium and execution control of dubbing is performed in accordance with the result of search for recording history information. For example, whether or not data to be reproduced from the first recording medium has been already recorded on the second recording medium is discriminated, and dubbing is carried out if the data to be reproduced data has not been recorded on the second recording medium.

Abstract: A recording method includes the steps of reading a management table for managing whether data are recorded on a recording medium in units of a first recording segment; detecting whether the first recording segment is associated with a second recording segment smaller than the first recording segment according to a designation of data recording in units of the second recording segment into the recording medium; discriminating from data in the management table whether it is possible to read data of the first recording segment; reading the data in units of the first recording segment and temporarily recording the data to a memory when in the discriminating step it is determined that it is possible to read data in units of the first recording segment; recording data to a part of the first recording segment recorded in the memory in units of the second recording segment; and recording data of the first recording segment that was temporarily recorded in the memory to the storage medium.

Abstract: A user-interactive program assists a user in locating files on optical media discs such as CD-ROMs and DVDs to enhance file-transfer rates and program installation times in computers with a Constant Angular Velocity (CAV) optical media disc drive. In addition, an application program calculates an optimal location for files and/or directories on an optical media disc so that the files are located near the location with the highest data transfer rate. This program may be used to compute an image file that defines where data will be located on an optical disc, or may be used to control transfer of data to the optical media disc.

Abstract: A method for recording data to optical media is provided. A selection of files to record from a source to a destination optical media is received, and an enumeration of the data files to record to the destination optical media is generated. The enumeration of data files includes the determining of whether any source file is in the enumeration of data files to record to the destination optical media more than one time. A destination file path node is mapped for each data file to be recorded to the destination optical media, and the selection of data files is recorded to the destination optical media. The recording includes only one occurrence of any source file in the enumeration of data files to record to the destination optical media.

Abstract: Apparatus nominally used for recording includes a reproduction section to play digital data from a recording medium recorded with that digital data and retrieval information, a recording section to write the digital data reproduced by the reproduction section and record the retrieval information on a control table, and a control circuit to search the control table by using the retrieval information when the digital data from the reproduction section is written by the recording section, thereby to permit the writing of digital data recorded on the medium with the recording section when the retrieval information is not recorded on the control table, and to prohibit the writing of digital data recorded on the medium with the recording section when the retrieval information is already recorded on the control table, and also to prevent the mistaken duplicate copying of the digital data with the recording section.

Abstract: According to an embodiment of the invention, a mobile communication terminal device comprises: an information memory unit configured to store a first information and a security information indicating whether the first information is secret; a backup request memory unit configured to store a first request for backing up identification information of the first information and the first information, or a second request for deleting a second information identified by the identification information with which the first information is stored in the backup device; a transmitting unit configured to transmit the first request or the second request based on the information stored in the backup request memory unit; and a management unit configured to store the identification information of the first information and the first request, if the first information of which the security information indicates that the first information is not secret is stored in the information memory unit.

Abstract: A digital media recorder and a method of controlling such are provided. During attempts to copy media content, sub-sequences are extracted from an input media sequence. A digital fingerprint of the sub-sequence is calculated and compared with at least one first reference fingerprint from a database. The outcome of the comparison determines the action to take in the further processing. Recording of the input media sequence on a media carrier is either allowed or obstructed, e.g. disallowed. In the case recording of the sequence is allowed, the database is updated with information that the digital media sequence has been recorded.

Abstract: The present invention is a system for securing broadcasting content locally at receiving stations that may be remote to a broadcaster. Embodiments of this invention implement controllable and renewable security measures, compatible with many other content processing and display systems. These security measures may include re-encrypting received broadcast content using locally generated keys, watermarking the received broadcast content, and logging both processing and display of broadcast content.

Abstract: A recording medium storing a write protection information, and a write protection method for protecting data recorded on a recordable and/or rewritable disc from unwanted overwriting or erasing. In order for write protection of a disc in a bare state that is usually used in a cartridge having a recognition switch for write-protection, such as a DVD-RAM, write protection information is recorded in a Lead-in area, a Lead-out area or a recording information area other than a user data area of the disc, and the data is protected from unwanted overwriting or erasing using the write protection information. Also, even though the write protection information stored on a disc does not match the state of a recognition switch of a case for write-protection, the data can be prevented from unwanted overwriting or erasing. Thus, the write protection can be ensured when a recordable and/or rewritable recording medium, such as DVD-RAM, DVD-R and DVD-RW, is used in a bare state.

Abstract: In an optical disk high-speed replaying/recording apparatus, a first read data quality determining section determines a quality of read second units of digital data. Upon determination that the quality of the second units of digital data is low, a first re-reading section re-reads the first units of digital data tracks, sectors, or data blocks in the second units at a third replay speed obtained by subtracting a first predetermined speed from a second replay speed. With this, the optical disk can be replayed at a speed higher than the normal replay speed, and reproduced data can be recorded on a writable optical disk except defective data caused by reproduction defects.

Abstract: The method and apparatus described utilise the fact that CDs manufactured from the same master will have distinctive physical characteristics attributable to the physical manufacturing process of the master to distinguish counterfeit CDs from genuine discs. For a genuine disc, the relative angular orientation of specified sections of the recorded data are determined and recorded. The relative angular orientation of the same sections of data on a test disc are also determined. Where the relative angular orientations are the same it is concluded that the test disc derives from the same source as the genuine disc and is therefore bona fide. Where there is no correlation, the test disc may be identified as counterfeit. The relative angular orientations, or other physical characteristics of the discs, may be physically measured, or may be calculated from information gained by reading the data on the disc. The disclosed technique can also be used to copy protect discs.

Abstract: The invention provides a recording media player and a recording media recorder provided with a high-security copy protection system of less complexity. A recording media player and/or recorder provided with a copy protection system stubborn to attacks and highly flexible in dealing with recording media of various copy conditions. For this purpose, various distributed copyright protection information (DCPI) values are used. The DCPI values include water marks in case of an MPEG stream, Copy Generation Management System (CGMS) codes, EMI (encryption mode indicator) in case of an IEEE1394-1995 interface, and user defined DCPI values. The recording is achieved such that DCPI values are recorded in user-unrewritable (or user-inaccessible) areas of the recording medium as long as possible.

Abstract: An information recording apparatus encodes distributed information, which is inputted via a network, in an encoding scheme for allowing decode by a plurality of types of players to obtain encoded distributed information, and when the distributed information is distributed including reproduction control information, the apparatus generates applicable reproduction control information for controlling reproduction aspects on actual reproduction based on the reproduction control information so as to record the applicable reproduction control information and encoded distributed information on an optical disk DK. Furthermore, when the distributed information is recorded, the apparatus records attribute information indicating that together with the encoded distributed information.

Abstract: A record medium comprises an original data obtained by superimposing a presentation target data, to which an error correction encoding is performed and an identification information.

Abstract: There is provided an apparatus for recording and reproducing information. The apparatus comprises a reading device to read out information recorded on a recording medium, a first recording device in which the information read out by the reading device is written, an output device to output the information written in the first recording device, a second recording device in which the information read out by the reading device is recorded, and a controller. The controller controls the reading, first recording, output, and second recording devices such that an operation specified by an operation command and directed to all the information recorded on the recording medium is performed, during an operation for recording the information into the second recording device, and the recording operation is continued.

Abstract: An information recording and reproduction apparatus comprising a recording and reproduction section configured to record and reproduce information in and from one recording medium of a first group and at least one recording medium of a second group, which has a smaller recording capacity than the one recording medium of the first group, and a registering section configured to reserve, in the one recording medium of the first group, a recording region which corresponds to the recording capacity of the at least one recording medium of the second group.

Abstract: According to the type of each of a plurality of external input interfaces, it is decided whether digital watermark information is to be detected from data entered via the external input interface. Digital watermark information is not detected from data entered via the external input interface and from which it has been decided not to detect any digital watermark information, but the data is recorded. Thus, there can be provided a data recording apparatus which is not applied with a any heavy load owing to the omission of any unnecessary detection of digital watermark information.

Abstract: A copy-protected optical recording medium and a method for manufacturing thereof is provided, wherein the medium has at least two auxiliary sections for confusing control of a copying machine.

Abstract: A method is designed for writing data originally recorded in a source disk medium with an original reproduction signal quality, into an object disk medium by means of an optical recording apparatus having a machine parameter settable to control a reproduction signal quality of data. The method is carried out by the steps of measuring the original reproduction signal quality of the data originally recorded in the source disk medium, setting a value of the machine parameter of the optical recording apparatus in accordance with the measured original reproduction signal quality, and writing the data into the object disk medium by means of the optical recording apparatus so as to secure the reproduction signal quality of the written data comparable to the original reproduction signal quality.

Abstract: An optical disk is provided that disables reproduction of sub-information even if the sub-information as a contents encryption key is recorded entirely onto another optical disk. Sub-information is recorded on the optical disk by deforming a recording mark slightly in accordance with a pseudo random number sequence that is obtained using as an initial value medium ID that is read out medium inherent information. This allows sub-information inherent in a medium to be recorded, and even if the sub-information is duplicated entirely to another optical disk, the illegally duplicated sub-information cannot be reproduced because of a difference in initial value of a pseudo random number sequence between media.

Abstract: A content access method and apparatus includes decompressing an input stream read from a storage medium to produce an output signal. The output signal is then multiplexed with timing information different from the timing information contained in the input stream.

Abstract: A system for copy protection of record carriers for digital data is described according to which at least one predetermined repetitive bit pattern which encodes into channel bits having an accumulated digital sum value that exceeds a first predetermined limit and that is below a second predetermined limit is determined and recorded onto said record carrier by a mastering process so that said accumulated digital sum value which exceeds said first predetermined limit and is below said second predetermined limit is achieved in said at least one replaced and/or inserted part.

Abstract: An information recording and reproducing apparatus (S) is provided with: a first reproducing device (11) for reproducing audio information from a first information record medium (DK), in which the audio information is recorded; a recording device (28) for recording the reproduced audio information into a second information record medium (HD); a second reproducing device (28) for reproducing the audio information recorded in the second information record medium; and a controlling device (6) for setting a recording speed when recording the audio information into the second information record medium and a reproducing speed when reproducing the audio information from the second information record medium such that the recording speed is equal to or higher than the reproducing speed, and controlling the second reproducing device and the recording device so as to perform reproducing the recorded audio information from the second information record medium at the set reproducing speed in parallel to recording the audi

Abstract: An information reproducing/recording system has a reproducing apparatus which reproduces program information from a first recording medium, a recording/reproducing apparatus which records program information on a second recording medium or reproduces program information from the second recording medium, and a control apparatus which controls the reproducing apparatus and the recording/reproducing apparatus. The control apparatus acquires first management information for program information recorded on the first recording medium, and acquires second management information for program information recorded on the second recording medium. And then, the control apparatus compares the first management information and the second management information, and judges based on the result of comparison whether program information corresponding to the first management information has been recorded on the second recording medium.

Abstract: A dubbing apparatus to dub data managed per program like audio data such as a piece of music is provided. In the dubbing apparatus, for passing output data read from a CD through a CD drive for compression of the data and transferring the compressed data for recording to an HD drive, an HD TOC being breakpoint information is generated based on specified information indicative of a track break of output data read from the HD drive. The HD drive generates a FAT based on the HD TOC. In the HD drive, the dubbed data can be managed per track accurately and properly without having to monitor any information indicative of each track break such as sub Q data synchronously with a stream of dubbing data.

Abstract: Methods for processing data to be recorded to optical media are provided. In one example, a method includes receiving a request to record data to optical media. The method then maps a source path for the data from a root directory through any intervening parent directories to the file location of the data, and saves the source path in a database. When saving the source path to the database, node identifiers are used to represent individual nodes of the source path with corresponding keys to the node identifiers saved in a path table. The method further provides for the complete source path for each file of the data to be recorded to be retrieved in one step when processing and recording the data.

Abstract: A communication system including a first apparatus having a first storage medium, and a second apparatus for transmitting data to the first apparatus. The second apparatus has a second storage medium for storing management information of data to be transferred to the first storage medium, a communicator for communicating data with the first apparatus, an editor capable of editing the management information and a controller for making a control to transfer data stored in the second storage medium to the first storage medium by way of the communicator based on the management information edited by the editor.

Abstract: Disclosed is an optical disk barcode forming method wherein, as information to be barcoded, position information for piracy prevention, which is a form of ID, is coded as a barcode and is recorded by laser trimming on a reflective film in a PCA area of an optical disk. When playing back the thus manufactured optical disk on a reproduction apparatus, the barcode data can be played back using the same optical pickup.

Abstract: The present invention provides a disc player comprising one or more light sources that project a constant or pulsing light onto the upper portion of a disc being played by the disc player. If a constant light source is used, the a pulsing viewing port for the disc receptacle of the disc player is employed. The pulse frequency, pulse length, pulse period, pulse interval, pulse color, pulse intensity or a combination thereof of the light source or the pulse frequency, pulse length, pulse period, pulse interval, or light transmissivity of the one or more viewing ports can be synchronized with the rotation of the spindle or platen in the disc player, with the optical data stored, or with the rotation of an image precursor on the disc. When the disc is viewed through a viewing port while the disc is being played, a two-dimensional or three-dimensional discrete image is formed by the persistence of vision.

Abstract: A sound reproducing apparatus (10) includes a slot (16) to which a memory card (18) is attached. A decoding software for decoding sound data is stored in an audio file recorded on the memory card (18). The decoding software is loaded into a RAM (22b) by a CPU (20) when it is not possible to decode the sound data by the decoding software stored on a ROM (22a). Therefore, a DSP (22) decodes sound data read from the same audio file in accordance with the decoding software loaded from the audio file.

Abstract: A player for storage media having a number of data groups is provided, which player enables a data group to be selected in a clearly organized way, particularly when a large number of data groups is stored on such a storage medium. In this context, a read head is provided for reading out the data of a first storage medium, and a read-head control is provided for positioning the read head in the area of a data group to be played, which data group is stored on the first storage medium. In addition, an input unit is provided where, on the one hand, various storage media and, on the other hand, various data groups, are selectable on a selected storage medium to be played. A conversion device is provided, which, in response to the number of data groups on the first storage medium exceeding a predefined value, forms at least two subsets from the number of data groups of the first storage medium, each of these subsets at the input unit being selectable as a different storage medium.