Patent
Apparatus and method for processing a variable-rate coded signal for recording to provide a high-speed search capability, apparatus and method for reproducing such processed signal, and recording including such processed signal
Fujinami Yasushi,Markus Veltman +1 more
- 22 Sep 1993
113
TL;DR: In this paper, an apparatus and method for preparing a variable-rate coded signal, generated by compressing a digital input signal using a variable compression ratio and including a signal portion of a predetermined type, for recording on a recording medium was presented.
read more
Abstract: An apparatus and method for preparing a variable-rate coded signal, generated by compressing a digital input signal using a variable compression ratio and including a signal portion of a predetermined type, for recording on a recording medium. In the apparatus, a circuit generates a flag signal indicating the signal portion of the a predetermined type in the variable-rate coded signal. A signal-type marker generating circuit generates a signal-type marker in response to the flag signal. Finally, a circuit multiplexes the signal-type marker with the variable-rate coded signal to produce a multiplexed signal for recording on the recording medium. The signal-type marker is located adjacent to the signal portion of the predetermined type to indicate the signal portion of the predetermined type in the multiplexed signal. Where the multiplexed signal is divided into packs of plural packets, the signal marker is included in an entry pack located immediately preceding a packet that includes the signal portion of the predetermined type. Where the multiplexed signal is divided into sectors and each sector includes a sector header, the signal marker is included as subcode in the sector header of a sector that includes the signal portion of a predetermined type.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Patent
Moving picture coding method and moving picture decoding method
Satoshi Kondo,Shinya Kadono,Makoto Hagai +2 more
- 06 Nov 2002
TL;DR: A moving picture coding apparatus for inter-picture predictive coding for pictures constituting a moving picture is provided in this article, where a coding unit for performing predictive error coding for image data, a decoding unit for decoding for an output from the coding unit, a reference picture memory for holding output data from the decoding unit, and a motion vector detection unit for detecting motion vectors on the basis of the decoded image data stored in the memory.
300
Patent
Data packet header compression for unidirectional transmission
Kenneth J. Birdwell,Ruston Panabaker,Brian K. Moran,David Feinleib +3 more
- 25 Sep 1997
TL;DR: In this paper, a broadcast transmission system transmits data packets from a server to a client over a unidirectional broadcast network, where the server compresses the data packets by compressing the packet header.
247
Patent
Method and apparatus for modifying encoded digital video for improved channel utilization
Paul Shen,Efraim Arazi,Edward A. Krause,Adam S. Tom +3 more
- 08 Nov 1996
TL;DR: In this paper, a method for increasing channel utilization for a data channel transmitting a multiplex of a set of one or more encoded program streams, each program stream being decodeable by a corresponding decoder, each corresponding decoding decoder including a corresponding decoding buffer, the decoder buffers having a maximum allowable size.
215
Patent
Optical disk and optical disk reproduction apparatus
Masayuki Hirabayashi,Hideaki Suzuki,Masafumi Nakamura,Yutaka Nagai,Toshifumi Takeuchi +4 more
- 09 Feb 1996
TL;DR: In this paper, an optical disk recording thereon compressed moving picture data and optical disk reproduction apparatus each capable of easily effecting trick play such as high speed reproduction and a retrieval operation at a high speed.
199
Patent
Coded data control device
Masaaki Hyodo,Hiroshi Kusao +1 more
- 02 May 1995
TL;DR: In this paper, a coded data control portion is used to access coded data of a video frame by using control data at random access in random access playback. But the coded data only can be read out at random accessing even with recording medium having coded data recorded thereon but whose code quantity is out of proportion to time.
190
References
Patent
Recording/reproducing compressed data on a rotatable record medium in which at least one intraframe code signal and at least (n-1) interframe code signals are recorded in each track
Jun Yonemitsu,Yagasaki Yoichi +1 more
- 16 Apr 1990
TL;DR: In this article, a rotatable record medium driven at a constant linear velocity is used to record image data in successive turns on a record medium by converting a first successive image frames of image data to an intraframe code signal, converting the next-following frames to (n-1) interframe code signals, and recording the intraframe and interframe codes on the record medium.
129
Patent
Compressed video signal recording/variable-speed reproduction apparatus
Masakazu Nishino,Chojuro Yamamitsu,Akifumi Ide,Akira Iketani,Tatsuro Juri +4 more
- 17 Apr 1991
TL;DR: In this article, a video signal recording/reproducing apparatus which records pictures by compressing the video signal in multiple field units and reproduces an signal by the expansion process is described.
83
Patent
Playback method for use in a recording medium playing apparatus using information control signals
Junichi Yoshio,Sumio Hosaka,Hisao Matsuoka,Youichirou Tsuda,Shoichi Katagiri,Satoru Nomura +5 more
- 21 Dec 1988
TL;DR: In this paper, a method for reading information recorded in the lead-in area in response to a command, moving an information reading point of the pickup to the first area of the recording medium when subcode picture presence information, which indicates that a graphic code including picture information is inserted in a subcode of the coded information signal, is detected from information recovered from the leadin area, was described.
39
Patent
Digital magnetic reproducing apparatus with variable tape speed
Atsuo Suga,Higuchi Shigemitsu,Hideo Nishijima,Kaneyuki Okamoto,Masataka Sekiya +4 more
- 13 Oct 1989
TL;DR: In this article, the rotary magnetic heads are moved and deviated in the direction of the rotation shaft of a rotary cylinder by rotating magnetic head position deviating means, and a particular index signal among the index signals is detected by index signal detecting means.
33
Related Papers (5)
Yasushi Fujinami,Mark Veltman +1 more
- 22 Sep 1993
Donald F. Hooper,Matthew S. Goldman,Peter C. Bixby,Suban Krishnamoorthy +3 more
- 07 Jul 1994