Patents by Inventor Tatsushi Bannai

Tatsushi Bannai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20070255727
    Abstract: To smoothly reproduce data. A clip generation section 104 generates a clip information file that describes attribute information of each piece of essence data that are necessary to reproduce each piece of essence data generated by a data generation section 103 according to parameter information supplied from an information obtainment section 102. An index file update section 105 generates in an index file read from an optical disc 17 and stored in a RAM a clip element that describes attribute information of a clip necessary to reproduce the clip according to the parameter information supplied from the information obtainment section 102 and updates the index file. The present invention can be applied to a video program creation support system.
    Type: Application
    Filed: June 8, 2004
    Publication date: November 1, 2007
    Inventors: Masaki Hirose, Takayoshi Kawamura, Hirofumi Murakami, Yoshiho Gotoh, Keiichi Teranishi, Tatsushi Bannai
  • Publication number: 20070206920
    Abstract: To improve the convenience of a record medium and allow a record process and reproduction process to be more easily performed than before. When a clip edit list update process 121 that updates video data and audio data recorded on a disc 32 is executed, an index file management section 72 manages and updates an index file held in an index file hold section 51 as the video data and audio data are updated. At this point, a search section 92 searches disc internal IDs assigned to clips or edit lists contained in the index file for the maximum value. A disc internal ID generation section 91 generates a disc internal ID according to the maximum value. An index file management section 72 updates the index file with the disc internal ID generated by the disc internal ID generation section 91.
    Type: Application
    Filed: June 8, 2004
    Publication date: September 6, 2007
    Inventors: Masaki Hirose, Yoshiaki Shibata, Hideaki Mita, Hiroshi Saitou, Tatsushi Bannai
  • Publication number: 20070206465
    Abstract: In order to perform simultaneous recording and reproduction, a large capacity of buffer memories were required. In addition, it was difficult to record data while reproducing data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording and reproduction method, and an information recording and reproduction apparatus which guarantee simultaneous recording and reproduction. The simultaneous recording and reproduction is guaranteed by reproducing data recorded in an area having at least a minimum size fulfilling the simultaneous recording and reproduction condition which allows for four access operations, recording data in an area having at least the same size, and performing reproduction and recording alternately by switching reproduction to recording when the data amount in the reproduction buffer becomes full and switching recording to reproduction when the data amount in the recording buffer becomes empty.
    Type: Application
    Filed: May 10, 2007
    Publication date: September 6, 2007
    Inventors: Yoshiho GOTOH, Miyuki Sasaki, Kaoru Murase, Tatsushi Bannai
  • Publication number: 20070192697
    Abstract: To allow the determination of whether data can be reproduced to be easily performed. When a plurality of clips generated by a photographing process are connected as an edit, an edit list management section 15 identifies encoding systems of a plurality of clips (video files) to be connected and writes the identified encoding systems to an edit list file that manages an edited result. An optical disc 30 on which a clip, an edit list file, and so forth have been recorded is loaded into another reproduction apparatus. When a command that causes an edited result recorded on the optical disc 30 to be reproduced is input to the other reproduction apparatus, the reproduction apparatus reads encoding systems written in the edit list file and determines whether the encoding systems are systems for which that the reproduction apparatus can decode data. In this manner, the reproduction apparatus determines whether it can reproduce the edited result.
    Type: Application
    Filed: June 9, 2004
    Publication date: August 16, 2007
    Inventors: Takayoshi Kawamura, Hideki Ando, Hideaki Mita, Keiichi Teranishi, Tatsushi Bannai
  • Patent number: 7233553
    Abstract: In order to perform simultaneous recording and reproduction, a large capacity of buffer memories were required. In addition, it was difficult to record data while reproducing data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording and reproduction method, and an information recording and reproduction apparatus which guarantee simultaneous recording and reproduction. The simultaneous recording and reproduction is guaranteed by reproducing data recorded in an area having at least a minimum size fulfilling the simultaneous recording and reproduction condition which allows for four access operations, recording data in an area having at least the same size, and performing reproduction and recording alternately by switching reproduction to recording when the data amount in the reproduction buffer becomes full and switching recording to reproduction when the data amount in the recording buffer becomes empty.
    Type: Grant
    Filed: August 29, 2002
    Date of Patent: June 19, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yoshiho Gotoh, Miyuki Sasaki, Kaoru Murase, Tatsushi Bannai
  • Publication number: 20060280479
    Abstract: The recording apparatus of the present invention includes: a file generating section for receiving video data and audio data and generating a video data file and an audio data file; a dividing section for dividing the video data file into a plurality of video data elements and dividing the audio data file into a plurality of audio data elements, an arranging section for arranging data such that the video data elements and the audio data elements are recorded within a predetermined recording unit; and a recording section for recording the arranged data on an information recording medium.
    Type: Application
    Filed: June 9, 2004
    Publication date: December 14, 2006
    Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., SONY CORPORATION
    Inventors: Hideaki Mita, Yoshiho Gotoh, Tatsushi Bannai, Takashi Furukawa, Hideki Ando, Hisao Tanaka, Motohiro Terao
  • Publication number: 20060216002
    Abstract: A recording and reproduction apparatus includes a first decoding section for outputting first decoded data generated by decoding the first data; a second decoding section for outputting second decoded data generated by decoding the second data; and a control section for calculating a first time period, from a start point of a seek operation of the reading section from the read finish point of first data to the read start point of second data until the first decoding section completes output of the first decoded data, and a second time period, from the start point of the seek operation until the second decoded data is allowed to be output by the second decoding section; and comparing a length of the calculated first time period and a length of the calculated second time period.
    Type: Application
    Filed: October 9, 2003
    Publication date: September 28, 2006
    Inventors: Takanori Okada, Yoshiho Gotoh, Tatsushi Bannai
  • Publication number: 20060140593
    Abstract: 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.
    Type: Application
    Filed: November 28, 2003
    Publication date: June 29, 2006
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takanori Okada, Masafumi Shimotashiro, Yoshibo Gotoh, Tatsushi Bannai
  • Publication number: 20060104147
    Abstract: A standard reproduction model for ensuring real time reproducing on a disk-shaped information recording medium, includes a pickup (102) that reads the real time data from the information recording medium, a buffer memory (103) that temporarily stores the real time data read by the pickup, and a decoding module (104) that reads the real time data from the buffer memory (103) and processes the read real time data. An access time Tacc of the standard reproduction model is expressed by the following formula, Tacc=A┬ĚdN+Trev+B where dN is a difference in rotational speed of the disk-shaped information recording medium, Trev is a rotation waiting time at a target access position, A and B are constants.
    Type: Application
    Filed: August 4, 2003
    Publication date: May 18, 2006
    Inventors: Shuichi Yoshida, Tatsushi Bannai, Yoshiho Gotoh, Takashi Kishimoto
  • Publication number: 20050160116
    Abstract: A control apparatus is provided for controlling a drive apparatus to access a rewritable information recording medium using a first file system. The control apparatus includes a first determination means for determining whether or not a matter which is not permitted in a second file system exists on the information recording medium; and a second determination means for determining that there is a possibility that the valid data in the first file system is recorded in a first file system space when it is determined that a matter which is not permitted in the second file system exists on the information recording medium.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 21, 2005
    Inventors: Yoshiho Gotoh, Yoshihisa Fukushima, Tatsushi Bannai
  • Publication number: 20050068819
    Abstract: In order to perform simultaneous recording of a plurality of pieces of real time data, a large capacity of buffer memories were required. In addition, it was difficult to reproduce data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording method, and an information recording and reproduction apparatus which guarantee simultaneous recording. The simultaneous recording is guaranteed by reproducing data in each of areas having at least a minimum size fulfilling the simultaneous recording condition which allows for the number of access operations which is twice the number of pieces of real time data to be recorded, and when the data amount in the buffer is empty, switching the current recording operation to another recording operation to continue recording.
    Type: Application
    Filed: August 29, 2002
    Publication date: March 31, 2005
    Inventors: Yoshiho Gotoh, Miyuki Sasaki, Kaoru Murase, Tatsushi Bannai
  • Publication number: 20040264327
    Abstract: In order to perform simultaneous recording and reproduction, a large capacity of buffer memories were required. In addition, it was difficult to record data while reproducing data which was recorded by a different apparatus. The present invention has an objective of providing an information recording medium, a simultaneous recording and reproduction method, and an information recording and reproduction apparatus which guarantee simultaneous recording and reproduction. The simultaneous recording and reproduction is guaranteed by reproducing data recorded in an area having at least a minimum size fulfilling the simultaneous recording and reproduction condition which allows for four access operations, recording data in an area having at least the same size, and performing reproduction and recording alternately by switching reproduction to recording when the data amount in the reproduction buffer becomes full and switching recording to reproduction when the data amount in the recording buffer becomes empty.
    Type: Application
    Filed: August 2, 2004
    Publication date: December 30, 2004
    Inventors: Yoshio Gotoh, Miyuki Sasaki, Kaoru Murase, Tatsushi Bannai
  • Patent number: 6810198
    Abstract: A number of outer parities to be added to an audio data is changed responsive to a ratio of frame frequencies of a video signal (e.g. 24 Hz or 30 Hz) before the data is recorded. Comparing with a first format, a recording bit rate is increased in a second format. Audio 4 channels (audio sectors 5-8) are additionally recorded maintaining a video data format (video sectors 1, 2) of the first format and an audio data format (audio sectors 1-4) of the first format.
    Type: Grant
    Filed: November 15, 2000
    Date of Patent: October 26, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tokuji Kuroda, Shiro Kato, Tatsushi Bannai
  • Patent number: 6724824
    Abstract: A digital signal processing method comprising the steps of: (a) composing, a plurality of first encoded video data and a plurality of second encoded video data; (b) dividing, each of high quality M bits audio channel into audio data of upper L bits and audio data of lower M-L bits; (c) composing a plurality of first basic data and a plurality of second basic data, wherein each of the first basic data have respective audio data of upper “L” bits, and wherein the second basic data have respective audio data of audio data of lower “M-L”; and (d) transmitting the first basic data in a first data bus, and the second basic data in a second data bus.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: April 20, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takeshi Otsuka, Masatoshi Taniguchi, Nobukatsu Okuda, Hirofumi Uchida, Tatsushi Bannai
  • Patent number: 6684360
    Abstract: Disclosed is a digital data transmission system comprising a transmission apparatus and a reception apparatus. The transmission apparatus generates error location information at which an error occurs in each block, in accordance with a data signal including a video signal composed of a first number of words and generated for each block, and an error information signal indicating presence or absence of an error corresponding to the data signal, multiplexes the generated error location information and the data signal into a multiplexed signal, and then, transmits the multiplexed signal through a transmission line.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: January 27, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Asanobu Ito, Minoru Nishioka, Tatsushi Bannai
  • Patent number: 6618095
    Abstract: A transmitting method serializes two series of signals into one series of signals, and transmits thereof. The two series of signals are produced through this way: a total number of bits of a luminance signal of an HDTV signal to be transmitted within a frame is divided into units corresponding to a total number of scanning lines ‘K’ per frame of one channel of an SDTV signal. Then K pcs. of transmission units per frame including a luminance signal and a color signal are produced in two series. Among the transmission units, at least the following data are inserted into the units corresponding to active scanning lines: (a) a given word of the control signal, (b) a signal comprising samples of N timed by a number of words of luminance signal within a given period of one horizontal scanning period of the SDTV, which includes a luminance signal and color signal of the SDTV, and (c) words corresponding to a given level. A transmitter realizing this method is also provided.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: September 9, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tomotaka Takeuchi, Minoru Nishioka, Noriaki Wada, Tatsushi Bannai, Tsugio Murao
  • Patent number: 6501904
    Abstract: A video-signal-recording apparatus compresses video signals having different formats, and records the signals. The apparatus comprises a recognition means for recognizing input video formats, compression means for changing compression rates depending on the format recognition signal, and record means for compounding the format recognition signal and an output from the compression means. The apparatus records the video signals having different formats on a recording medium sequentially without any seams.
    Type: Grant
    Filed: July 8, 1998
    Date of Patent: December 31, 2002
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Tokuji Kuroda, Tatsushi Bannai
  • Publication number: 20020172154
    Abstract: For conversion of a first video signal into a second video signal of a different format, a second auxiliary data packet is generated from a header carrying location data for multiplexing a first auxiliary data packet and main data of a first auxiliary data packet in the first video signal, and is multiplexed with the second video signal. For conversion from the second video signal into the first video signal, the first auxiliary data packet is generated from the header and the main data of the second auxiliary data packet, and multiplexed at the location determined by the location data in the first video signal.
    Type: Application
    Filed: April 22, 2002
    Publication date: November 21, 2002
    Inventors: Hirofumi Uchida, Tatsushi Bannai
  • Patent number: 6289173
    Abstract: In a recording and reproducing apparatus with image coding for compression coding of digital video signals and for recording and reproducing the compressed code, digital video signals are divided on a screen into coding blocks which are overlapped so as to share boundary pixels. DCT coefficient data in each coding block are divided into a plurality of groups, and coefficient data in two coding blocks overlapping on the screen are recorded to separate regions on a recording medium. When an error has occurred during a reproducing process, the state of the error occurrence is analyzed and an error correction responsive to the state of error occurrence is performed on coefficient data that has been lost due to the error. Thus, a stable, successful reproduced image can be obtained even if an error occurs during the recording and reproducing process.
    Type: Grant
    Filed: July 17, 1998
    Date of Patent: September 11, 2001
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Mitsuhiro Miyashita, Tatsushi Bannai
  • Publication number: 20010016011
    Abstract: A digital signal processing method comprising the steps of:
    Type: Application
    Filed: December 27, 2000
    Publication date: August 23, 2001
    Inventors: Takeshi Otsuka, Masatoshi Taniguchi, Nobukatsu Okuda, Hirofumi Uchida, Tatsushi Bannai