Recording For Changing Duration, Frequency Or Redundant Content Of An Analog Signal Patents (Class 360/8)
  • Patent number: 10452614
    Abstract: Methods, computing systems and computer program products implement embodiments of the present invention that include configuring a storage system to store multiple storage entities for access by one or more host computers in communication with the storage system, and specifying a compression condition including a minimum compression ratio. The storage system can then estimate an expected compression ratio for a given storage entity, compress the given storage entity upon the expected compression ratio meeting the compression condition, and provide, to a given host computer, access to the compressed given storage entity.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 22, 2019
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jonathan Amit, Nir Friedman, Danny Harnik, Chaim Koifman, Sergey Marenkov, Lior Shlomov, Dmitry Sotnikov, Shai Taharlev
  • Patent number: 10348907
    Abstract: A mobile device for electronic document collaboration is disclosed. The mobile device includes a display, a processor and a storage device. The mobile device presents a first message to prompt a first user to start recording on the mobile device in order to capture at least one of audio and video information on the mobile device. After the first user has completed the recording on the mobile device, the mobile device then presents a second message to prompt a second user to start recording on the mobile device to capture at least one of audio and video information on the mobile device. The processor determines whether or not the two recordings were performed within a predetermined time interval. If the two recordings were performed within a predetermined time interval, the processor merges the two recordings into one media document, and the media document is then stored within the storage device.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: July 9, 2019
    Inventor: Antony P. Ng
  • Patent number: 9329787
    Abstract: In one embodiment, a method is provided for adapting a host transfer rate between a host and a tape drive to a medium transfer rate between the tape drive and a tape. A data compression rate of untransferred data in a buffer of a tape drive is measured. A change in a future host transfer rate is predicated based on the measured compression rate. A host transfer rate between a host and the tape drive is adapted to a medium transfer rate between the tape drive and a tape, based on the predicted change.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: May 3, 2016
    Assignee: International Business Machines Corporation
    Inventor: Takashi Katagiri
  • Patent number: 9098389
    Abstract: A memory system includes a memory device and a memory controller. The memory device includes a plurality of memory dies having different page sizes. The memory controller generates a plurality of chip selection signals for activating the plurality of memory dies based on the reordering number of requests received from a processor.
    Type: Grant
    Filed: March 16, 2013
    Date of Patent: August 4, 2015
    Assignee: SK Hynix Inc.
    Inventors: Yong Kee Kwon, Hyung Dong Lee, Young Suk Moon, Hyung Gyun Yang
  • Patent number: 9063663
    Abstract: The flash memory controller compresses data in response to a write request. On condition that there is a compression effect with respect to the compressed data, the flash memory controller writes the compressed data to the base area of a physical block of a flash memory. As physical pages assigned to the physical block, the flash memory controller reduces the physical pages assigned to the base area from 102 down to 59, and increases the physical pages assigned to the update area from 26 up to 69. Therefore, it is possible to suppress exhaustion of physical pages which are assigned to the update area, to reduce the number of erases of the physical block, and to consequently prolong device operating life.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: June 23, 2015
    Assignee: Hitachi, Ltd.
    Inventors: Akifumi Suzuki, Atsushi Kawamura, Junji Ogawa
  • Patent number: 9025261
    Abstract: A mechanism is provided for determining storage device speed based on a ratio of data compression. A bandwidth (B) is identified between a storage device accessing storage medium and a host application requesting access to data on the storage medium. A host side transfer rate is identified, where the host side transfer rate (HSTR) is a rate of data transfer between the host application and the storage device. For each data set in a set of data sets of a record, a ratio of data compression (R) is identified for the data set; a compression considered host side transfer rate (CCHSTR) is determined; and the storage device speed is set to the compression considered host side transfer rate (CCHSTR) for transmitting the data set to the host application.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: May 5, 2015
    Assignee: International Business Machines Corporation
    Inventors: Tohru Hasegawa, Yutaka Oishi
  • Patent number: 8913334
    Abstract: A processing unit performs a method including controlling a reading-out of data from a first storage medium at a predetermined read-out data rate to produce inputted data, and controlling a compression of the inputted data to produce first compressed data of a first compressed format. The method includes controlling a storage of the first compressed data in a second storage medium at a faster writing data rate than the predetermined read-out data rate, controlling a reading-out of second compressed data of a second compressed format from the second storage medium, and controlling a decompression of the second compressed data to produce decompressed data. The method also includes controlling simultaneously the storage of the first compressed data in the second storage medium, the reading-out of the second compressed data from the second storage medium, and audibly reproducing the decompressed data. The first compressed format is different from the second compressed format.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: December 16, 2014
    Assignee: Sony Corporation
    Inventors: Toshiyuki Arai, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Patent number: 8423692
    Abstract: A method to read information from an information storage medium using a read channel, where that read channel includes a data cache, where the method generates an analog waveform comprising the information, provides that analog waveform to a read channel generates a digital signal from that analog waveform using one or more first operating parameters, corrects that digital signal at an actual error correction rate, determines if the actual error correction rate is greater than an error correction rate threshold. If the actual error correction rate exceeds the error correction rate threshold, then the method captures the digital signal, stores that captured data in a data cache, reads that digital signal from the cache, generates one or more second operating parameters, provides those one or more second operating parameters to the read channel.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: April 16, 2013
    Assignee: International Business Machines Corporation
    Inventors: James J. Howarth, Robert A. Hutchins
  • Patent number: 8345365
    Abstract: A processing unit performs a method including controlling a reading-out of data from a first storage medium at a predetermined read-out data rate to produce inputted data, and controlling a compression of the inputted data to produce first compressed data of a first compressed format. The method includes controlling a storage of the first compressed data in a second storage medium at a faster writing data rate than the predetermined read-out data rate, controlling a reading-out of second compressed data of a second compressed format from the second storage medium, and controlling a decompression of the second compressed data to produce decompressed data. The method also includes controlling simultaneously the storage of the first compressed data in the second storage medium, the reading-out of the second compressed data from the second storage medium, and audibly reproducing the decompressed data. The first compressed format is different from the second compressed format.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: January 1, 2013
    Assignee: Sony Corporation
    Inventors: Toshiyuki Arai, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Publication number: 20120120517
    Abstract: A processing unit performs a method including controlling a reading-out of data from a first storage medium at a predetermined read-out data rate to produce inputted data, and controlling a compression of the inputted data to produce first compressed data of a first compressed format. The method includes controlling a storage of the first compressed data in a second storage medium at a faster writing data rate than the predetermined read-out data rate, controlling a reading-out of second compressed data of a second compressed format from the second storage medium, and controlling a decompression of the second compressed data to produce decompressed data. The method also includes controlling simultaneously the storage of the first compressed data in the second storage medium, the reading-out of the second compressed data from the second storage medium, and audibly reproducing the decompressed data. The first compressed format is different from the second compressed format.
    Type: Application
    Filed: January 25, 2012
    Publication date: May 17, 2012
    Applicant: Sony Corporation
    Inventors: Toshiyuki ARAI, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Patent number: 8159766
    Abstract: An information-processing apparatus includes a processing unit that compresses inputted data to produce compressed data of a first compressed format. The information-processing apparatus also includes a storage unit that stores the compressed data in a storage medium. The processing unit decompresses data, stored in the storage medium, of a second compressed format to produce decompressed data. Further, the processing unit controls the storage unit to store the compressed data of the first compressed format in the storage medium while the processing unit simultaneously decompresses the data, stored in the storage medium, of the second compressed format and reproduces the decompressed data. The first compressed format is different than the second compressed format.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: April 17, 2012
    Assignee: Sony Corporation
    Inventors: Toshiyuki Arai, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Patent number: 8095712
    Abstract: A method and apparatus to read information from an information storage medium using a read channel, where that read channel includes a data cache. The invention generates an analog waveform comprising the information, and provides that analog waveform to a read channel, and generates a digital signal from that analog waveform using one or more first operating parameters. The method error corrects that digital signal at an actual error correction rate, and determines if the actual error correction rate is greater than an error correction rate threshold. If the actual error correction rate exceeds the error correction rate threshold, then the method captures the digital signal, stores that captured data in a data cache, reads that digital signal from the cache, generates one or more second operating parameters, and provides those one or more second operating parameters to the read channel.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: January 10, 2012
    Assignee: International Business Machines Corporation
    Inventors: James J. Howarth, Robert A. Hutchins
  • Patent number: 8009375
    Abstract: A digital information receiving apparatus and method in which a receiver receives a digital signal including a video signal and an audio signal, wherein the received video signal is bit-compressed by a first compression method and the received audio signal is bit-expanded by a second compression method which is different from the first compression method, a demodulator demodulates the received digital signal, and an expander bit-expands the demodulated digital signal.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: August 30, 2011
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7952823
    Abstract: A method for digital information including at least one of digital video information and digital audio information to a transmission path. The method includes compressing the digital video information by a first compression method, bit compressing the digital audio information by a second compression method which is different from the first compression method, and adding error-detection information to both the digital video information and the digital audio information.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: May 31, 2011
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7953911
    Abstract: A method and apparatus to read information from an information storage medium using a read channel, where that read channel includes a data cache. The invention generates an analog waveform comprising the information, and provides that analog waveform to a read channel, and generates a digital signal from that analog waveform using one or more first operating parameters. The method error corrects that digital signal at an actual error correction rate, and determines if the actual error correction rate is greater than an error correction rate threshold. If the actual error correction rate exceeds the error correction rate threshold, then the method captures the digital signal, stores that captured data in a data cache, reads that digital signal from the cache, generates one or more second operating parameters, and provides those one or more second operating parameters to the read channel.
    Type: Grant
    Filed: August 24, 2010
    Date of Patent: May 31, 2011
    Assignee: International Business Machines Corporation
    Inventors: James J. Howarth, Robert A. Hutchins
  • Patent number: 7933084
    Abstract: A signal reconstruction technique is used to correct for wow and flutter in analog audio recordings. Elements of the recording are used to generate a signal for correcting the output. Involves locating modulated entities such as bias signal (e.g. frequency-modulated, amplitude-modulated, or phase-modulated entities) in the recording, extracting them, and utilizing them as a carrier to synchronize to a master clock, using the irregularity of the anomaly to indicate the speed and pitch information to be corrected. A carrier frequency is determined and applied to a digitized form of the recording. This may be performed even in the absence of a prescribed reference code or tone, such as a pilot tone laid down purposefully at the moment of recording. In the case of signals presumed to have an error in the carrier, a corresponding signal is buffered, and in the case of a presumed error, a last known signal is used for the duration of the error.
    Type: Grant
    Filed: October 6, 2003
    Date of Patent: April 26, 2011
    Inventors: James R. Howarth, Patrick J. Wolfe, Darryl Curley, Timothy Rector
  • Patent number: 7859777
    Abstract: A method and apparatus for transmitting and receiving digital information including video information and audio information. The video information is compressed by a first compression method and the audio information is compressed by a different second compression method for transmission on a transmission path.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: December 28, 2010
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7808733
    Abstract: A method and apparatus for transmitting and receiving digital information including video information and audio information. The video information is compressed by a first compression method and the audio information is compressed by a different second compression method for transmission on a transmission path.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 5, 2010
    Assignee: Hitachi Consumer Electronics Co., Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7793020
    Abstract: A method and apparatus to read information from an information storage medium using a read channel, where that read channel includes a data cache. The invention generates an analog waveform comprising the information, and provides that analog waveform to a read channel, and generates a digital signal from that analog waveform using one or more first operating parameters. The method error corrects that digital signal at an actual error correction rate, and determines if the actual error correction rate is greater than an error correction rate threshold. If the actual error correction rate exceeds the error correction rate threshold, then the method captures the digital signal, stores that captured data in a data cache, reads that digital signal from the cache, generates one or more second operating parameters, and provides those one or more second operating parameters to the read channel.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: September 7, 2010
    Assignee: International Business Machines Corporation
    Inventors: James J. Howarth, Robert A. Hutchins
  • Patent number: 7680979
    Abstract: Systems and associated methods provide a level of indirection between multiple host computers and multiple data storage resources, such as removable media data storage devices. At least one of the hosts is not provided with direct access to some of the removable media data storage devices. Instead, logical addresses are provided to the host computers, where the logical addresses can relate to physical addresses associated with the data storage resources. A data storage resource handle or logical proxy may be presented to a host, and a management layer determines whether the host receives access to physical data storage resources, or virtual resources that emulate the physical resources.
    Type: Grant
    Filed: July 19, 2007
    Date of Patent: March 16, 2010
    Assignee: Quantum Corporation
    Inventors: Rod Wideman, Gregory Prestas, Don Doerner
  • Patent number: 7532419
    Abstract: High-rate writing of data recorded on a CD into a hard disk drive (HDD) is performed while reproducing data read out of the CD at the standard bit rate prescribed for the CD. PCM data corresponding to a playback time of 10 seconds, for example, is read out of a CD and stored in a memory. The data is read out of the memory at appropriate timing and outputted after being converted into an analog audio signal by a D/A converter. In parallel, data for writing is read out of the CD in succession to reading of the data for playback and stored in the memory. The data read out of the memory is coded and compressed by an encoder and then stored in the memory. The compressed data is read out of the memory in units of a certain amount suitable for writing in an HDD and then written in the HDD.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: May 12, 2009
    Assignee: Sony Corporation
    Inventors: Toshiyuki Arai, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Patent number: 7286310
    Abstract: An apparatus for receiving digital information including a receiver which receives the digital information that has digital video information bit-compressed by a first compression system, digital audio information bit-compressed by a second compression system, and error-detection information added to both the digital video information and the digital audio information. There is also provided a demodulator which demodulates the digital information received by the receiver, an error detector which detects an error of digital information demodulated by the demodulator by use of the error-detection information, a first expander which bit-expands video information among the digital information error detected by the error detector corresponding system, and a second expander which bit-expands audio information among the digital information error detected by the error detector corresponding to the second compression system.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: October 23, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7259926
    Abstract: A transmitting apparatus and method for transmitting a digital signal in which a time-base compressor compresses the digital signal, a bit compressor compresses the time-base compressed signal from the time-base so that a transmission rate of the time-base compressed signal from the time-base compressor is higher than a transmission rate of the bit-compressed signal from the bit-compressor, and a transmitter transmits the bit compressed signal.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: August 21, 2007
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7133226
    Abstract: A data accumulating apparatus, comprising: storage media; receiving means for receiving digital raw data about specific information from an external electronic device; first accumulating means for accumulating the digital raw data received by the receiving means into the storage media; producing means for producing first data equal to the digital raw data accumulated in the storage media; compressing means for compressing the first data produced by the producing means to produce coded data in association with the digital raw data accumulated in the storage media; and second accumulating means for accumulating the digital coded data produced by the compressing means into the storage media.
    Type: Grant
    Filed: May 5, 2004
    Date of Patent: November 7, 2006
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yuji Kaihotsu, Takehiko Yasuda
  • Patent number: 7126770
    Abstract: High rate writing of data recorded on a CD into a hard disk drive (HDD) is performed while reproducing data read out of the CD at the standard bit rate prescribed for the CD. PCM data corresponding to a playback time of 10 seconds, for example, is read out of a CD and stored in a memory for subsequent read out. In parallel, data for writing is read out of the CD and stored in the memory. The data read out of the memory is coded and compressed by an encoder and then stored back in the memory. When the data stored in the memory for playback has become smaller than a predetermined amount, an interrupt is generated during the writing process with the processing, which is given top priority, so that a next set of playback data is read out of the CD and stored in the memory.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: October 24, 2006
    Assignee: Sony Corporation
    Inventors: Toshiyuki Arai, Takashi Kumagai, Hajime Inai, Hiroaki Sato, Fumitake Yodo, Masami Oyama
  • Patent number: 7027240
    Abstract: An apparatus and method for transmitting and receiving digital information includes a transmitting part for transmitting digital video information and digital audio information and receiving part for receiving digital video information and digital audio information. The transmitting part includes a first compressor for digital video information, a second compressor for digital audio information, a parity signal adder, a modulator, and a transmitter. The receiving part includes a receiver which receives digital information which is digital video information bit-compressed by a first compression system plus digital audio information bit-compressed by a second compression system, and to which has been added a parity signal for error detecting, phase-modulated and transmitted to a transmission path; a demodulator; an error detector, a first expander which bit-expands video information, and a second expander which bit-expands audio information.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: April 11, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7012769
    Abstract: An apparatus for at least receiving digital information including digital video information bit-compressed by a first compression system plus digital audio information bit-compressed by a second compression system and transmitted to a transmission path. The receiver apparatus includes a receiver which receives the transmitted digital information, a demodulator which demodulates the digital information received by the receiver, an error detector which detects an error of a digital information demodulated by the demodulator by use of a parity signal, a first expander which bit-expands video information among digital information error detected by the error detector corresponding to the first compression system and a second expander which bit-expands audio information among digital information error detected by the error detector corresponding to the second compression system.
    Type: Grant
    Filed: April 2, 2003
    Date of Patent: March 14, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 7010218
    Abstract: A digital magnetic recording/reproducing device for recording or reproducing plural sorts of audio data, and a recording/reproducing method therefor. The digital magnetic recording/reproducing device includes an analog-to-digital (A/D) and digital-to-analog (D/A) converter for converting an audio analog signal into digital data or vice versa, a formatter/deformatter for converting a format of the audio signal and the data grouped to be stored in the recording sectors of the magnetic tape, a recording selection unit for transmitting the input audio signal to the A/D converter or formatter according to the type of the audio signal, and a reproduction selection unit for transmitting the data reproduced from the magnetic tape to the D/A converter or deformatter. The output data from the A/D converter and the output data from the formatter are recorded on the different recording sectors of the magnetic tape.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 7, 2006
    Assignee: Samsung Electronics, Co., Ltd.
    Inventor: Young-Min Nam
  • Patent number: 6978345
    Abstract: A disk drive system including one or more platters, each platter supporting at least one recording surface, where the platters are aligned about a common central axis. The platters spin about the common central axis. A recording head is associated with each recording surface. An actuator mechanism couples to each recording head to move the recording head into proximity with selected portions of the recording surface in response to received commands. At least two replicates of data are stored in at least two data storage areas such that any one of the at least two replicates can be accessed to service a data access request.
    Type: Grant
    Filed: May 15, 2001
    Date of Patent: December 20, 2005
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Richard J. Tomaszewski, Steven Eugene Fairchild
  • Patent number: 6952315
    Abstract: A digital signal recording/reproducing apparatus having a mode for recording a compressed input signal on a recording medium and a mode for recording a non-compressed input signal on the recording medium. The apparatus include input circuits which input a digital compressed signal and an analog non-compressed signal, an A/D converter, a data compressor, a mode change-over circuit which changes-over the mode, and a selector which selects either a digital compressed signal from the data compressor or a digital compressed signal from the input circuit. A recorder records a recording signal to a recording medium and a reproducer.
    Type: Grant
    Filed: December 15, 2003
    Date of Patent: October 4, 2005
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 6891687
    Abstract: An input signal is recorded in a recording tape ? by converting the input signal to a record signal through the modulation performed at the timing corresponding to the previously-specified number of tracks per division of signal by using input-signal converting means 1,2, 3, and 10 and then rotating a head cylinder 8 at a revolving speed lower than the revolving speed of the head cylinder 8 corresponding to the timing for modulation and corresponding to a recording rate adjusted by the recording-rate adjusting means 12 by using recording means 7, 8, 9, 10, and 11. Thereby, it is possible to make the configuration of a head cylinder same even for a system in which the number of tracks per division of signal differs due to the difference in compressibility.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: May 10, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Ryoichi Takahira, Hiroyuki Shimogome
  • Patent number: 6823129
    Abstract: A system for scaling resolution of an input stream includes an input for receiving the image input stream which passes the image input stream to a frame buffer. The frame buffer holds one or more image frames such that a router can decorrelate the image input stream. Decorrelation may be accomplished by spatially transforming the frames of the input image stream into frequency components, temporally transforming frames of the input image stream or through color component decomposition. The decorrelated components are each passed to a processor which performs quantization and entropy encoding of the components. Each of the compressed components are passed to memory for storage. Thus, real-time throughput can be increased above the rate of the individual processing elements through decorrelation.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: November 23, 2004
    Assignee: QuVIS, Inc.
    Inventor: Kenbe D. Goertzen
  • Publication number: 20040179284
    Abstract: A tape drive unit has a data compression engine coupled to an incoming data stream. A buffer memory stores data of the incoming data stream. A control module enables or disables the data compression engine in response to a function of the data occupancy level of the buffer memory.
    Type: Application
    Filed: February 23, 2004
    Publication date: September 16, 2004
    Inventor: Christopher Martin
  • Patent number: 6792198
    Abstract: Method and apparatus for recording digital data transport stream units such as application packets in sectors of a disk type recording medium such as a digital versatile disk and create and record management information for the recorded transport stream units. In case that a single transport stream unit is divided and then recorded across two sectors, header information of the preceding sector including management information which is created corresponding to each transport stream unit is generated, and the size of the header information and transport stream units to be recorded in the preceding sector is compared with the size of a sector. If the size difference is 1 byte, an invalid header data distinguishable from normal application header extension information is inserted to maintain the correspondence between each transport stream unit to be recorded in the preceding sector and its management information.
    Type: Grant
    Filed: June 6, 2000
    Date of Patent: September 14, 2004
    Assignee: LG Electronics Inc.
    Inventors: Byung-Jin Kim, Kang-Soo Seo, Jea-Yong Yoo, Ki Won Kang
  • Publication number: 20040114266
    Abstract: A tape drive apparatus employing, as a recording medium, a tape cassette (1) including a memory (4) in a cassette half unit (6) having accommodated a magnetic tape (3). When recording the application data on the magnetic tape (3), the application data to be recorded on the magnetic tape (3) is written in an area of a preset size of the memory (4), beginning from the leading end of the application data to be recorded on the magnetic tape (3). In this manner, at least the management information located at the leading end of the application data can be stored in the memory (4). In reproducing the application data from the tape cassette (1), the management information stored in the memory (4) is exploited to save time for accessing the management information recorded on the magnetic tape (3) to speed up the accessing to the data recorded on the magnetic tape (3).
    Type: Application
    Filed: October 7, 2003
    Publication date: June 17, 2004
    Inventors: Masahiro Urano, Yoshihisa Takayama, Hiroshi Ishibashi, Tatsuya Kato
  • Patent number: 6654189
    Abstract: The invention relates to a digital-signal processing apparatus for playing back a digital signal recorded on a recording medium, wherein the digital signal is recorded onto the recording medium by delimiting the digital signal at predetermined time intervals into blocks and then processing each of the blocks to convert the digital signal into at least first coefficient data prescribing the amplitude of the digital signal or first coefficient data prescribing the amplitude of a component obtained as a result of conversion of the digital signal and second coefficient data for prescribing the waveform of the digital signal in conjunction with the first coefficient data, and the digital-signal processing apparatus selectively updates the first coefficient data of the digital signal recorded on the recording medium.
    Type: Grant
    Filed: April 13, 1999
    Date of Patent: November 25, 2003
    Assignee: Sony Corporation
    Inventor: Takeshi Sasaki
  • Publication number: 20030156338
    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.
    Type: Application
    Filed: February 3, 2003
    Publication date: August 21, 2003
    Inventors: Shigetaka Kudo, Yuji Saito
  • Patent number: 6590726
    Abstract: An apparatus and method for transmitting and receiving digital information includes a transmitting part for transmitting digital video information and digital audio information and receiving part for receiving digital video information and digital audio information. The transmitting part includes a first compressor for digital video information, a second compressor for digital audio information, a parity signal adder, a modulator, and a transmitter. The receiving part includes a receiver which receives digital information which is digital video information bit-compressed by a first compression system plus digital audio information bit-compressed by a second compression system, and to which has been added a parity signal for error detecting, phase-modulated and transmitted to a transmission path; a demodulator; an error detector, a first expander which bit-expands video information, and a second expander which bit-expands audio information.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: July 8, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 6563657
    Abstract: A hard disk drive for a computer system has at least two actuators for reading data from or writing data to the disks. The actuators may be configured to support the different methods of data access required of them. For example, if large quantities of sequential data are performed, one operation uses both actuators to increase throughput. However, if mostly random operations are to be performed, then independent usage of the actuators is preferred. These two methods of usage can be supported simultaneously, and can even be dictated by the user. The tracking format of the actuators can be configured such that the next logical track is physically located under a head on a different actuator to improve sequential operation. The actuators also may be utilized in a dual-channel configuration so that data can be written to both actuators at the same time, or read back at the same time to improve throughput. In addition, either of these configurations can be selected on a transfer-by-transfer basis by the user.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: May 13, 2003
    Assignee: International Business Machines Corporation
    Inventors: Louis Joseph Serrano, Mantle Man-Hon Yu, Kirk Barrows Price
  • Patent number: 6560051
    Abstract: A disk device having access to a disk in different writing modes includes a host PC. The host PC sends a command including a data transfer rate to a controller (disk drive). When the command designating the data transfer rate is received, the writing mode employed for writing data to a disk is automatically switched. The host PC already has the transfer rate to be sent. It is unnecessary to newly prepare a special command to notify the controller in order for switching between the writing modes. Therefore, versatility will not be impaired.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: May 6, 2003
    Assignee: Alps Electric Co., Ltd.
    Inventors: Masahiro Nasu, Kyoichi Shirane
  • Patent number: 6532121
    Abstract: A compression system stores meta-data in the compressed record to allow better access and manage merging data. Markers are added to the compression stream to indicate various things. Each compressed record has a marker to indicate the start of the compressed data. These markers have sector number as well as the relocation block numbers embedded in their data. A second marker is used to indicate free space. When compressed data is stored on the disk drive, free space is reserved so that future compression of the same, or modified, data has the ability to expand slightly without causing the data to be written to a different location. Also the compressed data can shrink and the remaining space can be filled in with this free space marker. A third type of marker is the format pattern marker. Compression algorithms generally compress the format pattern very tightly. However, the expectation is that the host will write useful data to the storage device.
    Type: Grant
    Filed: October 25, 1999
    Date of Patent: March 11, 2003
    Assignee: Hewlett-Packard Company
    Inventors: Robert A. Rust, Douglas L. Voigt
  • Publication number: 20030039044
    Abstract: An apparatus and method for transmitting and receiving digital information includes a transmitting part for transmitting digital video information and digital audio information and receiving part for receiving digital video information and digital audio information. The transmitting part includes a first compressor for digital video information, a second compressor for digital audio information, a parity signal adder, a modulator, and a transmitter. The receiving part includes a receiver which receives digital information which is digital video information bit-compressed by a first compression system plus digital audio information bit-compressed by a second compression system, and to which has been added a parity signal for error detecting, phase-modulated and transmitted to a transmission path; a demodulator; an error detector, a first expander which bit-expands video information, and a second expander which bit-expands audio information.
    Type: Application
    Filed: October 23, 2002
    Publication date: February 27, 2003
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 6498691
    Abstract: A digital information transmitting, receiving and/or recording/reproducing system, provided with the digital information transmitting apparatus for transmitting the digital information to a transmission path, a receiving apparatus for receiving the transmitted digital information and a recording/reproducing apparatus for the recording received digital information to a recording media and reproducing therefrom. The apparatus includes a compressor which compresses the digital information, a transmission parity signal adder which adds a transmission parity signal to the output signal of the compressor in order to correct an error occurring in the transmission path, wherein the transmission parity signal is different from a record parity signal to be added at the recording apparatus and a transmitter which transmits the transmission parity signal added compressed digital information added by the transmission parity signal adder to the transmission path.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: December 24, 2002
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 6466732
    Abstract: To code and record new information to be recorded on DVD-R/W 1 on which old information is already coded and recorded, an old coding parameter used to code the old information is aquired (step S6, S8, S10, S11), a new coding parameter used to code the new information is set so as to continue with the aquired old coding parameter (step S14, S15, S21, S22, S23), and the new information is coded using the setup new coding parameter and is recorded.
    Type: Grant
    Filed: September 15, 1999
    Date of Patent: October 15, 2002
    Inventors: Tomohiro Kimura, Shigeru Adachi
  • Publication number: 20020035664
    Abstract: An improved virtual tape storage device that can store an image of a virtual tape volume either as a stacked image or as a native image that is essentially indistinguishable from the image that would have been written had the host written the volume directly to the tape.
    Type: Application
    Filed: July 8, 1998
    Publication date: March 21, 2002
    Inventors: NEVILLE YATES, JEFFREY MILLER
  • Patent number: 6344939
    Abstract: During recording, a multilingual indication is generated when at least two of the audio channels of a digital audio signal are associated with a common program, and the multilingual indication is combined with the digital audio signal. During reproduction, a display is activated when a multilingual indication indicates that at least two of the audio channels included in a digital audio signal are associated with a common program.
    Type: Grant
    Filed: March 11, 1997
    Date of Patent: February 5, 2002
    Assignee: Sony Corporation
    Inventor: Masaki Oguro
  • Patent number: 6324025
    Abstract: A digital information transmitting apparatus includes a first bit-compressor for bit-compressing a digital video information by a system of discrete cosine transform and a second bit-compressor for bit-compressing a digital audio information by a different system from the system of the first bit-compressor. A parity signal adder is provided for adding a parity signal to the bit-compressed digital video information from the first bit-compressor and the bit-compressed digital audio information from the second bit-compressor, in order to correct an error which occurs in a transmission path. A modulator is provided for phase-modulating the bit-compressed digital video information and the bit-compressed audio information, to which the parity signal has been added by the parity signal adder, and a transmitter ig provided for transmitting the modulated and parity signal added bit-compressed digital video information and bit-compressed digital audio information from the modulator, to the transmission path.
    Type: Grant
    Filed: September 5, 2000
    Date of Patent: November 27, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Hideo Arai, Hitoaki Owashi, Kyoichi Hosokawa, Keizo Nishimura, Yoshizumi Watatani, Akira Shibata
  • Patent number: 6321026
    Abstract: A recordable DVD disk which includes a read-only sector for specifying a video encoding algorithm to be used for compressing video programs that are to be recorded in the recordable region of the recordable DVD disk. Such disks may be used in a digital video recording system having a programmable video encoder. In one embodiment, the system accepts the recordable DVD disks having a read-only sector for storing customized video encoding algorithms and programs the programmable video encoder with the customized video encoding algorithms prior to encoding and recording a video signal on the disk. By designing the video encoding algorithms to optimize one or more of a number of desirable attributes, the DVD media vendors can then create “classes” of recordable DVD disks, i.e. high capacity, high quality, high speed, high image detail, high color resolution, variable frame rate, etc.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: November 20, 2001
    Assignee: LSI Logic Corporation
    Inventor: Gregg Dierke
  • Publication number: 20010028520
    Abstract: A digital information recording apparatus having a first recording mode recording a first digital information signal of a first information rate on a magnetic tape and a second recording mode recording a second digital information signal of a second information rate on the magnetic tape. The apparatus includes a circuit which when the second information rate is less than 1/N times the first information rate (N is an integer ≧2), adds a dummy signal to the second digital information signal to make the recording rate of the second digital information signal substantially equal to the recording rate of the first digital information signal and a circuit which multiplexes identification signals for identifying the first and the second digital information signals or the first and the second recording rates on the first or the second digital information signal, for recording.
    Type: Application
    Filed: May 9, 2001
    Publication date: October 11, 2001
    Inventors: Nobutaka Amada, Takaharu Noguchi, Takao Arai
  • Publication number: 20010015863
    Abstract: During recording, a multilingual indication is generated when at least two of the audio channels of a digital audio signal are associated with a common program, and the multilingual indication is combined with the digital audio signal. During reproduction, a display is activated when a multilingual indication indicates that at least two of the audio channels included in a digital audio signal are associated with a common program.
    Type: Application
    Filed: March 11, 1997
    Publication date: August 23, 2001
    Applicant: SONY CORPORATION
    Inventor: MASAKI OGURO