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32results about How to "Reproducing data" patented technology

Method for creating defect management information in an recording medium, and apparatus and medium based on said method

This invention provides a method for creating / writing defect management information of an information recording medium and an apparatus and optical disc based on the method. In the present invention, it depends on the type of data to be reproduced whether or not defective sectors which are detected during reproduction operation are replaced with non-defective sectors. If read-out errors are detected in reproducing non-audio / video data, linear replacement algorithm is applied to the corresponding defective sectors. On the other hand, in case of audio / video data, location information of the corresponding defective sectors is just kept without any sector replacement. Therefore, this invention enables to reproduce audio / video data in real-time regardless of the presence of defective sectors and to avoid writing data to the defective sectors when new data is overwritten to the information recording medium.
Owner:LG ELECTRONICS INC

Method for creating defect management information in an recording medium, and apparatus and medium based on said method

This invention provides a method for creating / writing defect management information of an information recording medium and an apparatus and optical disc based on the method. In the present invention, it depends on the type of data to be reproduced whether or not defective sectors which are detected during reproduction operation are replaced with non-defective sectors. If read-out errors are detected in reproducing non-audio / video data, linear replacement algorithm is applied to the corresponding defective sectors. On the other hand, in case of audio / video data, location information of the corresponding defective sectors is just kept without any sector replacement. Therefore, this invention enables to reproduce audio / video data in real-time regardless of the presence of defective sectors and to avoid writing data to the defective sectors when new data is overwritten to the information recording medium.
Owner:LG ELECTRONICS INC

Contents forming method and contents reproducing apparatus and method

A contents forming method for multi-media encoding method provided with an IPMP system, characterized by generating IPMP information containing identification information (404) for identifying the IPMP system type and version information (405) for identifying the intellectual property rights management and protection system version, and burying the IPMP information into contents.
Owner:CANON KK

Communication system, receiver and reception method

A communication system includes: a transmitter adapted to transmit a synchronizing clock and serial data synchronous with the synchronizing clock over a line at low amplitude; and a receiver adapted to receive the serial data and synchronizing clock from the transmitter. The receiver includes an amplifier adapted to amplify the received synchronizing clock of low amplitude to restore the clock to its original amplitude, a latched comparator adapted to latch the received serial data in synchronism with a reproduction clock, and a phase-locked circuit.
Owner:SONY CORP

Apparatus for intercepting communication data in a packet network

A communication terminal apparatus and a communication intercepting apparatus performs a communication interception even on a communication network such as the Internet, an Intranet, or the like in which a communication route is not fixed. While the communication terminal apparatus is executing voice communication with another communication terminal apparatus, the communication intercepting apparatus transmits a monitor request signal to the communication terminal apparatus. When the monitor request signal is received, the communication terminal apparatus stores voice data which is transmitted to another communication terminal apparatus and voice data received from another communication terminal apparatus into a monitoring packet and transmits the monitoring packet to the communication intercepting apparatus. The communication intercepting apparatus receives the monitoring packet and reproduces the transmitted packets.
Owner:OKI ELECTRIC IND CO LTD

Disk array apparatus and backup method of data

A disk array apparatus includes first and second RAID (Redundant Arrays of Inexpensive Disks) groups; and a disk array controller. The first RAID groups includes a first data disk group of a first disk group and a second disk group which store first and second data, respectively; and a first redundant disk configured to store a first redundant data for the first and second data. The second RAID groups includes a second data disk group of a third disk group and a fourth disk group which store second data, respectively; and a second redundant disk configured to store second redundant data for the third and fourth data. Each of the first to fourth disk group includes at least one disk. The disk array controller includes a RAID configuration managing section configured to reconfigure the first to fourth disk groups other than a first specific disk and the first and second redundant disks into a third RAID group when the first specific disk which stores a first specific data is failed in the fourth disk group.
Owner:NEC CORP

Dielectric reproducing apparatus, dielectric recording apparatus, and dielectric recording/reproducing apparatus

A dielectric reproducing apparatus is provided with: a probe for applying an electric field to a dielectric material of a dielectric recording medium; a return electrode for returning the electric field applied from the probe; an inductor placed between the probe and the return electrode; an oscillator which oscillates at a resonance frequency determined from the inductor and a capacitance formed in the dielectric material just under the probe; an alternating current (AC) signal generation device for generating an AC signal which is applied to the probe; a frequency modulation (FM) demodulator for demodulating a FM modulation signal modulated by the capacitance corresponding to the polarization state owned by the dielectric material just under the probe; and a phase-shift keying (PSK) demodulator for reproducing data from the demodulated signal.
Owner:CHO YASUO +1

Program, recording medium and reproduction apparatus

In an apparatus not connected to a network can perform the reproduction within a valid viewing period. Also, in order to facilitate the change of the encryption algorithms of a password, a program recorded on the disk comprises the steps of acquiring a first medium identification number recorded on a recording medium, acquiring the current time, acquiring a password, calculating a second medium identification number and the expiry date of the valid viewing period from the password, comparing the first medium identification number with the second medium identification number, and comparing the current time with the expiry date of the valid viewing period. In the case where the first medium identification number coincides with the second medium identification number and the current time has not passed the expiry date of the valid viewing period, then the predetermined information is reproduced from the recording medium.
Owner:HITACHI LTD

Optical data recording medium and method for reproducing recorded data

An optical data recording medium, in which irradiation of a light beam is used for recording and / or reproducing data includes (i) a substrate having an a rise and / or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.
Owner:SHARP KK

Optical disk recorder for writing data with variable density

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 multiplies 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. A data recording section operates in synchronization to the different writing clock signals for recording data along the circular tracks at the different linear densities on the different annular zones.
Owner:YAMAHA CORP

Apparatus and method for reproducing storage medium that stores metadata for providing enhanced search function

An apparatus and method for reproducing a storage medium that stores metadata are provided for an enhanced search function using various search keywords of audio-visual (AV) data. The apparatus includes: a search unit for searching for scenes matching a search keyword by conducting an enhanced search function on the AV data with reference to metadata which contains information regarding at least one search keyword for each of the scenes of the AV data; and a reproducing unit for reproducing the AV data corresponding to at least one scene found by the search unit. The metadata may include information regarding an entry point and / or duration, angles, etc. of each scene. Hence, the enhanced search can be conducted using various search keywords. Further, search results can be reproduced according to diverse scenarios, and the enhanced search function can be provided for movie titles that support multiple angles or multiple paths. Moreover, metadata can be created in multiple languages, thereby enabling the enhanced search function to support multiple languages.
Owner:SAMSUNG ELECTRONICS CO LTD

Reproducing apparatus and control method thereof

An image processing apparatus includes a detecting unit configured to detect a change in a viewing environment; a storing unit configured to store position information of data displayed on a display unit when the change in the viewing environment is detected by the detecting unit; and a reproducing unit configured to reproduce data corresponding to the position information stored in the storing unit by receiving a re-viewing instruction.
Owner:CANON KK

Recording/reproduction device

The present invention provides a recording / reproduction device that can perform post-record editing on a disk on which post-record editing has been determined to be impossible by conventional methods, and that can reproduce data that thus has been subjected to post-record editing, by devising a method for access in one cycle of repetitive processes of post-record editing. The recording / reproduction device is provided with a pick-up for recording or reproducing information and a control portion for controlling an operation of the pick-up, in which when reproduction is performed from an information recording medium on which in a separate area from a main sequence in which data blocks including original audio data and video data are recorded in succession, an additional sequence in which data blocks including post-record audio data are recorded in succession is formed, the control portion controls an operation of the pick-up in such a manner that the pick-up accesses the main sequence and the additional sequence alternately, and reproduces a plurality of data blocks in succession in each access.
Owner:PANASONIC CORP

Reproducing apparatus and control method thereof

An image processing apparatus includes a detecting unit configured to detect a change in a viewing environment; a storing unit configured to store position information of data displayed on a display unit when the change in the viewing environment is detected by the detecting unit; and a reproducing unit configured to reproduce data corresponding to the position information stored in the storing unit by receiving a re-viewing instruction.
Owner:CANON KK

Information processing apparatus and duplex transmission method

There is provided an information processing apparatus includes a first module and a second module. The first module includes a first signal generator that produces a first signal by coding a first transmitted data into a waveform not including a direct-current component, having a polarity being inverted in each half period of a clock; a first signal sending unit that sends the first signal; and a signal subtracting unit that subtracts the first signal from a received signal. The second module includes a clock detecting unit that detects the clock based on the polarity inverting period of the first signal received from the first module; a second signal generator that produces a second signal by coding a second transmitted data into a waveform not including the direct-current component; and a second signal sending unit that sends the second signal while the second signal is synchronously added to the first signal.
Owner:SONY CORP

Information device

An information device is provided, including a communication part, communicating with an external device; and a controller, downloading video data from the external device via the communication part and executing an application. The application creates distribution data having the same format as the video data from the video data and reproduction list data, and to reproduce the distribution data. A local server in the application transmits the distribution data and the reproduction list data to a reproduction part. The controller puts transmission of the reproduction list data from the local server to the reproduction part on standby until the reproduction list data is updated based on the distribution data, or adding reproduction-continuation video data to update the reproduction list data until the reproduction list data is updated based on the distribution data.
Owner:FUNAI ELECTRIC CO LTD

Recording/reproduction device

The present invention provides a recording / reproduction device that can perform post-record editing on a disk on which post-record editing has been determined to be impossible by conventional methods, and that can reproduce data that thus has been subjected to post-record editing, by devising a method for access in one cycle of repetitive processes of post-record editing. The recording / reproduction device is provided with a pick-up for recording or reproducing information and a control portion for controlling an operation of the pick-up, in which when reproduction is performed from an information recording medium on which in a separate area from a main sequence in which data blocks including original audio data and video data are recorded in succession, an additional sequence in which data blocks including post-record audio data are recorded in succession is formed, the control portion controls an operation of the pick-up in such a manner that the pick-up accesses the main sequence and the additional sequence alternately, and reproduces a plurality of data blocks in succession in each access.
Owner:PANASONIC CORP

Optical disk, optical disk drive and method of playing back an optical disk

An optical disk that has a BCA, from which data can be reproduced even if the BCA has defects. The data format of the BCA comprises a plurality of sub-data units and coupling codes, each coupling two adjacent sub-data units. The sub-data units contain the same data. To reproduce the data, the sub-data units are checked for errors. The data recorded in any sub-data unit that has no errors is reproduced and output to a next stage circuit connected to the optical disk drive.
Owner:KK TOSHIBA +1

Optical data recording medium and method for reproducing recorded data

An optical data recording medium, in which irradiation of a light beam is used for recording and / or reproducing data includes (i) a substrate having an a rise and / or a recess which are a light-incident surface, (ii) a reflective layer, provided on the light-incident surface of the substrate, for reflecting the light beam, (iii) a light absorption layer for converting, to heat, a light of the light beam to heat on the surface of the reflective layer, (iv) a reproducing layer, provided on the surface of the heat-light converting layer, having a transmittance that changes in accordance with a light intensity distribution of the light beam. The optical data recording medium is excellent in super-resolution property, and enables reproduction of a shorter mark length.
Owner:SHARP KK
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