Abstract: An optical disk recording apparatus operates on an optical disk having circular tracks which are provisionally written with an index signal used for securing a constant linear velocity of the optical disk from an innermost circular track to an outermost circular track, and records data along the circular tracks at different linear densities on different annular zones of the optical disk. In the apparatus, a disk drive section rotates the optical disk while synchronizing the index signal successively read from the rotated optical disk with a predetermined reference clock signal to thereby maintain the constant linear velocity of the circular tracks. A clock generating section multiples or divides the reference clock signal by different rates to generate different writing clock signals in correspondence to the different annular zones of the optical disk.

Abstract: DVD 1? has recording information areas VOR, AOR in which recording information is recorded and reproducing procedure information recording areas VNA, ANA in which reproducing procedure information indicating reproducing procedures of the recording information is recorded. In addition, this DVD 1? has an integrated reproducing procedure information recording area GNA in which an integrated reproducing procedure information is recorded. The integrated reproducing procedure information indicates reproducing procedures to sequentially reproduce a plurality of recording information including recording information recorded in other DVD. Upon reproducing, the recording information recorded astride a plurality of DVDs is reproduced in accordance with the integrated reproducing procedure information.

Abstract: In simultaneous stream recording and playback, after playback catches up with real time live broadcast, a playback speed changing unit 2 smoothly changes a playback speed to single speed. Nevertheless, an output switching unit 4 continues to perform single-speed playback. During single-speed playback, a switching timing indicating unit 3 indicates a timing of switching to real time live broadcast to the output switching unit 4. Upon receiving the indication from the switching timing indicating unit 3, the output switching unit 4 switches its output to real time live broadcast. With this, in the case of catching-up playback, it is possible to prevent adverse effects caused by dropout of sound information at an instant when the output is changed from catching-up playback to real time live broadcast.

Abstract: The invention proposes an appliance for recording or playing back information having means for signal generation from a wobble signal which is scanned from the undulating track on a recording medium, such as a DVD+RW. According to the invention, a signal scanned from the undulating recording track on the recording medium is supplied to a circuit arrangement for generating a clock signal which is both a square-wave voltage whose phase is synchronous with that of the signal and a signal with an even-numbered multiple of the frequency of the wobble signal contained in the signal. In this regard, the invention provides a phase locked loop which is synchronized with the signal and contains a frequency divider for actuating a digital phase shifter and for providing a clock signal which is a phase-synchronous square-wave voltage having the frequency of the wobble signal.

Abstract: The invention relates to a method and a system for the partial automatic recording of parameter values for parameters, necessary for particular processes, which provide telecommunication services. A definition mask is used, from which a recording mask is automatically generated, which is suitable for the recording of the parameter values. The recording mask is process-specific and embodied such that inconsistencies with regard to the values are excluded, whereby the value of a parameter used by several processes need only be input once.

Abstract: The apparatus is a turntable assembly which includes a rotary turntable platter, a phonographic cartridge, and a tonearm for impinging the phonographic cartridge against a record on the rotary turntable platter. The record includes MIDI timing signals encoded therein. The apparatus further includes an amplifier, an analog-to-digital converter and a signal processing means for amplifying the resulting phonographic signal, converting the phonographic signal into digital format and extracting the timing signal so as to generate an output MIDI timing code for controlling the playback of an external audio signal.

Abstract: Conventionally, as in the case of switching between a DVD-R and a DVD-RAM, when the method of record mark arrangement in a track is changed, the physical format of the disk is also changed. This makes it difficult to ensure compatibility between pieces of data recorded by a plurality of different methods of record mark arrangement. According to the present invention, sector address data and block address data are recorded in each sector by using wobbling or deformation of a recording groove. Then, depending on which address is used, sector data structure is modified, thereby making it possible to select an address data detection and a data structure on a disk in a single physical format depending on the purpose.

Abstract: A reproduction-only optical information storage medium including a plurality of areas and at least one transition area. Each transition area is located between two adjacent areas. The transition area allows data to be smoothly reproduced from the reproduction-only optical information storage medium at a low error generation rate. Also, since the optical information storage medium provides standards for the transition area, it is compatible with existing optical information storage media.

Abstract: The present invention provides an information recording method and an information recording apparatus, which are capable of recording reproduction controlling information in information recording medium such as DVD. An operation portion designates a division timing in the audio information in case of dividing continuous audio information to record it in the DVD. A pickup records the audio information before the designated division timing and the audio information after the designated division timing in the DVD. A system controller repeats generating object recording sequence information in associated with the audio information before and after the division timing, respectively, to record them in the DVD every time when the division timing is designated.

Abstract: The object of the present invention is to provide multi-channel reproducing apparatuses and multi-channel reproducing loudspeaker apparatuses that can be easily connected to one another. In the multi-channel reproducing apparatus 1, a DSP 6 converts an inputted audio signal to audio signals for a plurality of channels, adds channel identification information to each audio signal and multiplexes the audio signals to generate a multi-channel reproducing signal. The DSP 6 supplies the multi-channel reproducing signal to a plurality of multi-channel reproducing loudspeaker apparatuses 201 to 20n that are dispersedly arranged. These multi-channel reproducing loudspeaker apparatuses 201 to b 0n input the multi-channel reproducing signal from an input terminal 20a and output the signal to outside from an output terminal 20b.

Abstract: This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format which provides a user with selective reproduction of the voice of a player. The karaoke CD format includes a CD format divided into video sectors and audio sectors. The audio sectors are further divided into a part for recording accompaniment sound and playing sound at the same time and a part for recording accompaniment sound only. There is provided record coding information for distinguishing the parts.

Abstract: This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format, which provides a user with selective reproduction of the voice of a player. The karaoke CD format includes a CD format divided into video sectors and audio sectors. The audio sectors are further divided into a part for recording accompaniment sound and playing sound at the same time and a part for recording accompaniment sound only. There is provided record coding information for distinguishing the parts.

Abstract: A voice file consists of a plurality of data blocks. Each data block is composed of a plurality of sectors. Playback time information on voice data recorded in the sector is stored in the sector header. A control device creates a management file having the playback time for each block recorded therein from the information on this sector header, and stores it in a RAM or storage medium. When an arbitrary playback time is specified by an input device, which of the data blocks having the specified playback time positioned therein is retrieved by referring to this management file. Then, the playback times of voice data in sectors are calculated sequentially from the first sector of the data block. A sector in which a sum between the calculated playback time and a playback time up to a data block immediately preceding the retrieved data block is coincident with the specified playback time is retrieved, and access to the sector is provided.

Abstract: The apparatus is a turntable assembly which includes a rotary turntable platter, a phonographic cartridge, and a tonearm for impinging the phonographic cartridge against a record on the rotary turntable platter. The record includes MIDI timing signals encoded therein. The apparatus further includes an amplifier, an analog-to-digital converter and a signal processing means for amplifying the resulting phonographic signal, converting the phonographic signal into digital format and extracting the timing signal so as to generate an output MIDI timing code for controlling the playback of an external audio signal.

Abstract: An information storage medium includes: a plurality of unit audio information to be reproduced independently of each other; aggregate audio information each including one or more of the unit audio information; unit attribute information indicating attributes of the unit audio information included in the aggregate audio information; and aggregate attribute information including the unit attribute information corresponding to the aggregate audio information recorded on the storage medium. By referring to the aggregate attribute information, the attributes of all the unit audio information may be readily and quickly obtained.

Abstract: A quadraphonic compact disc system for providing enhanced acoustic imaging of sound reproductions. The quadraphonic compact disc system includes a compact disc with data streams representing at least four audio channels, a compact disc player assembly designed for reading the data streams when the compact disc is placed in the compact disc player assembly, a plurality of speakers electrically coupled to the compact disc player assembly and an audio switching assembly designed for directing a plurality of electrical signals from the compact disc player to an associated one of the plurality of speakers.

Abstract: The present invention provides a recording medium reproduction apparatus that can continuously reproduce different tunes from recording media at the same numbers of beat and the same beat timing. The recording medium reproduction apparatus includes: a first recording medium reproduction unit; a second recording medium reproduction unit; and a control unit that compares the number of beats per unit time of a tune reproduced from a first recording medium with the number of beats per unit time of a tune reproduced from a second recording medium, and adjusts the reproduction rate of the second recording medium reproduction unit so that the number of beats per unit time of the second recording medium reproduction unit becomes equal to the number of beats per unit time of the first recording medium reproduction unit.

Abstract: This invention relates to a karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format which provides a user with selective reproduction of the voice of a player.

Abstract: A karaoke CD format and a device for controlling audio signals utilizing the karaoke CD format provides a user with selective reproduction of the voice of a player. The karaoke CD format includes a CD format divided into video sectors and audio sectors. The audio sectors are further divided into a part for recording accompaniment sound and vocal sound at the same time and a part for recording accompaniment sound only. Record coding information distinguishes the parts.

Abstract: A playback device for disk-shaped recording media is proposed, which makes it possible to skip over storage data groups on audio disks. The playback device includes a scanning device and a device for evaluating content data recorded in a start-up area on the recording medium. The recording medium inserted in the playback device is recognized as a storage disk or as an audio disk, depending on the evaluation of the content data. In the event that a storage disk is recognized, a playback process is terminated, and in the event an audio disk is recognized, the scanning device skips to a just addressed title of the audio disk. The scanning device, during the playback of a title of the audio disk, scans coded supplemental information data recorded with respect to this title. The evaluation device, on the basis of the supplemental information, recognizes whether the title just played is an audio data group or a storage data group.

Abstract: Before original information is recorded in areas such as a recording medium management area where the same pattern of information is recorded many times, a dummy pattern that minimizes a recording film flow is recorded. Because the direction of the recording film flow depends on the length of a mark length, the dummy pattern is a pattern including marks with a unique length. Randomly or sequentially selecting and recording a plurality of dummy patterns, each with a recording film flow direction different from others, prevents jitters, which will be caused by the recording film flow, from increasing.

Abstract: A computerized method and apparatus for creating a scratch effect through a MIDI interface. In one form, timing signals are derived from a turntable whose direction and speed of rotation are manually controlled by a disk jockey. The timing signals are processed by a microcomputer into a MIDI protocol recognizable by a conventional MIDI instrument. Preferably, the microcomputer is coupled to control a computer which interprets the MIDI protocol output and uses the output to regulate speed and direction of playback of a musical and/or visual presentation.

Abstract: A recording medium includes at least a recording area in which pieces of content data are recorded, and a lead-in area in a position that is read before the recording area is read. In one of the recording area and the lead-in area, identification information which indicates whether the recording medium is for a rental use is recorded.

Abstract: An apparatus for writing on and reading an overwritable optical disk comprises an identifier detector that identifies a recording condition in the sector to be overwritten, and a delay time controller circuit that sets a variation range of the start point for writing according to the recording condition. The record timing of the modulated data signal is changed at random within the set variation range when overwriting the sector of the optical disk.

Abstract: A video disk recorder has a function for carrying out a linking on an optical disk and contains a predetermined data building-in circuit for supplying a predetermined fixed data as a playback data. Upon linking, a linking point is placed in a CPM area on the optical disk and the fixed data is recorded in this CPM area. Upon playback of the CPM area in which the linking is carried out, the fixed data supplied from the predetermined data building-in circuit is read out as the playback data.

Abstract: In a reproducing apparatus of the present invention, an input audio signal is divided into bands and an envelope value of each band is measured. Based on a change of the envelope value, a predetermined sound source is superimposed. Further, according to the envelope value of a reproduced audio signal, a tempo of reproduced music is detected and animation representation is changed in synchronism with the detected tempo. Further, a rhythm box is reproduced in synchronism with the detected tempo and a sound field is automatically selected corresponding to the detected tempo to perform synthesization.

Abstract: A servo controller for correcting a read position of a head when reading data recorded on a recording medium. In accordance with the amplitude ratio of data signals read from each segment of a servo section defined on a recording medium, the servo controller generates an AGC signal corresponding to the next segment before reading the next segment. The data signal read from a phase detection segment of the servo section is amplified to an amplitude greater than the predetermined determination range. The amplified data signal is converted to a two-value digital signal in accordance with the determination range. The phase used during servo control is calculated in accordance with the digital signal.

Abstract: In a DVD video player with a built-in CD-R drive, until it reaches the state that the data of an optical disk can be reproduced, the output is switched into the reproduction output from a flash memory, a record medium that is quick to start reading. This makes it possible to develop user interfaces such as: voluntarily reproducing an audio information from the flash memory to add music sounds or sounds with special effects to the screen saver, in replacement of the optical disk drive that cannot read data during the screen saver being in operation or being in standby; reproducing the sounds with special effects; reproducing click sounds in response to a key input from the key or the remote control unit; and announcing to inform of the state to the user.

Abstract: A reproducing apparatus and a signal processing apparatus each having a filter for eliminating cross modulation distortion when cross modulation noise is caused by poor compatibility with an amplifier or a speaker connected to a reproducing apparatus for reproducing a digital signal composed of quantization one-bit data having high-frequency band.

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: A data reproducing unit reproduces data read by a first reading unit from a storage medium. A storage unit stores added information corresponding to data stored on the storage medium. The added information is read by the second reading unit and reproduced by an added information reproducing unit. A control unit controls such that the data is reproduced by the data reproducing unit in synchronism with the reproduction of the added information by the added information reproducing unit.

Abstract: The present invention is a reproducing apparatus that reproduces data from a record medium on which text information such as a title of a program is recorded in a plurality of languages and identifiers for identifying recorded languages are recorded as codes wherein a language that has been designated is used as a default language. Thus, without need to designate a language, text information in the default language is automatically read from a record medium and displayed.

Abstract: A method for generating a land/groove (L/G) switching signal from pits on a land/groove (POLG) type disc and an apparatus therefor. In the method for generating an L/G switching signal from pits on a POLG type disc having tracks with wobbles, in which header information is recorded in sectors of each track, the header information including physical identification data (PID) and a peak header and a bottom header distinguished by envelopes of the peak header signal and the bottom header signal and both the peak and bottom header signals having phases according to lands or grooves, the phases of the peak header signal and the bottom header signal are compared to determine a track switching point and the sequence of sectors is determined using the physical identification data of the disc.

Abstract: The present invention is a reproducing apparatus that reproduces data from a record medium on which text information such as a title of a program is recorded in a plurality of languages and identifiers for identifying recorded languages are recorded as codes wherein a language that has been designated is used as a default language. Thus, without need to designate a language, text information in the default language is automatically read from a record medium and displayed.

Abstract: An information storing disk including at least one system stream stored thereon. The at least one system stream includes a silent cell for defining a silent period and an audio cell for defining audio data to be reproduced after the silent period. The silent period is a period to be silent, which is from when one system stream to be reproduced among at least one system stream is determined until reproduction of an audio cell included in the one system stream is started.

Abstract: A virtual RAM read address generating circuit (41) generates a virtual address on the basis of an output signal of a crystal oscillation circuit (36). A phase comparison circuit (39) which performs phase comparison with a write address, and a spindle control circuit (3) which controls rotation of a disk with reference to outputs of a frequency comparison circuit (38) and the phase comparison circuit (39) are disposed. Therefore, a phase error can be fed back to a spindle motor, thereby preventing linear velocity deviation from occurring in a steady state. By using the thus configured reproducing device, the reproduction quality in the case where a disk wherein recording was performed by the CLV system is reproduced by the variable linear velocity reproduction system is ensured, and both high-speed access and low power consumption are realized.

Abstract: The present invention provides an information recording method and an information recording apparatus, which are capable of recording reproduction controlling information in information recording medium such as DVD. An operation portion designates a division timing in the audio information in case of dividing continuous audio information to record it in the DVD. A pickup records the audio information before the designated division timing and the audio information after the designated division timing in the DVD. A system controller repeats generating object recording sequence information in associated with the audio information before and after the division timing, respectively, to record them in the DVD every time when the division timing is designated.

Abstract: A recording method, a recording apparatus, a reproducing method and a reproducing apparatus for a recording medium such as an optical disk or the like are able to simultaneously record and simultaneously reproduce a plurality of independent information or to execute the recording and the reproduction thereof simultaneously with ease. The apparatus includes a plurality of buffers (7a, 7b) for respectively, individually and temporarily memorizing a plurality of independent recording data or reproducing data and a pickup (2) for recording the recording data memorized in the respective buffers (7a, 7b) on respective different recording areas in a time-division manner and reproducing data recorded on the respective different recording areas in a time-division manner.

Abstract: A data reproducing unit reproduces data read by a first reading unit from a storage medium. A storage unit stores additional information corresponding to data stored on the storage medium. The additional information is read by the second reading unit and reproduced by an additional information reproducing unit. A control unit controls such that the data is reproduced by the data reproducing unit in synchronism with the reproduction of the additional information by the additional information reproducing unit.

Abstract: The present invention provides a recording medium reproduction apparatus that can continuously reproduce different tunes from recording media at the same numbers of beat and the same beat timing. The recording medium reproduction apparatus includes: a first recording medium reproduction unit; a second recording medium reproduction unit; and a control unit that compares the number of beats per unit time of a tune reproduced from a first recording medium with the number of beats per unit time of a tune reproduced from a second recording medium, and adjusts the reproduction rate of the second recording medium reproduction unit so that the number of beats per unit time of the second recording medium reproduction unit becomes equal to the number of beats per unit time of the first recording medium reproduction unit.

Abstract: A recording/playback apparatus provided by the present invention comprises at least two recording/playback units. When the size of a recordable area left in a recording medium mounted on one of the recording/playback units undergoing a recording operation first is detected to become equal to or smaller than a predetermined value, a recording operation is started in the other recording/playback unit so that it is possible to obtain a recording result without losing information due to replacement of a recording medium.

Abstract: To ensure compatibility of apparatus, seamless_connection_flag is set to 1 when a succeeding play item can be reproduced in seamless reproduction consecutive to a previous play item and set to 0 when seamless reproduction cannot be guaranteed.