Panasonic Corporation

Matsushita Electric Industrial Co., Ltd.

Sony Corporation

Panasonic Corporaation

Hideaki Mita

Tatsushi Bannai

Hiroaki Shimazaki

Hiroshi Yahata

Yoshiho Gotoh

Masaki Hirose

Takanori Okada

Hiroshi Saito

Yoshihisa Fukushima

Takashi Furukawa

Hisao Tanaka

Seiji Horita

Keishi Okamoto

Hiroshi Saitou

Masahiro Yamada

Takayuki Nakamura

Hideki Ando

Masanori Itoh

Yoshiaki Shibata

Yasuo Hamamoto

Motohiro Terao

Atsuo Ochi

Hideki Ohtaka

Hisataka Ueda

Kenji Hyodo

Hiroshi Saitoh

Hiromasa Hoshino

Tatushi Bannai

Tatusi Bannai

A video recording apparatus provides a slow motion effect or a quick motion effect by digitally converting the frame-rate instead of by changing the playback speed of the film, and using few recording media without requiring any special device at playing. A picture encoding part encodes only valid frames by changing a rate-controlling method so that a predetermined playing frame-rate is obtained at a standard data-rate at playing. And a TS multiplexing part multiplexes by converting a frequency of a standard STC clock by only a ratio of valid frame-rate and playing frame-rate, and generating values for PCR, PTS, and DTS.

Video recording apparatus, multiplexing method, picture encoding method, program, and recording medium for variable frame-rate recording

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 processthat updates video data and audio data recorded on a discis executed, an index file management sectionmanages and updates an index file held in an index file hold sectionas the video data and audio data are updated. At this point, a search sectionsearches disc internal IDs assigned to clips or edit lists contained in the index file for the maximum value. A disc internal ID generation sectiongenerates a disc internal ID according to the maximum value. An index file management sectionupdates the index file with the disc internal ID generated by the disc internal ID generation section

Information process apparatus and method, program, and record medium

A recording and reproducing apparatus () can record information on a recording memory () having a recording region where a smallest unit for erasing recorded information is a block, on a unit of a cluster that is a unit smaller than the block. The recording and reproducing apparatus () includes: an input unit () that receives a request for starting or ending recording a file; and a system control unit () that records a header section of the file and a data section following the header section, from the beginning of the block in the recording region, when the request for starting recording is received; and updates the header section and records the updated header section on another cluster different from the cluster on which the header section before update is recorded when the request for ending recording is received. The system control unit () further corrects management information indicating a connection order of information recorded on each of the clusters included by the recording medium so that the updated header section is followed by the data section, when the updated header section is recorded on the other cluster.

Recording apparatus and recording method

Achieving improvement in protection of recorded data and reproduction performance and editing performance of video data and audio data, in addition to minimizing the number of disk devices, an inexpensive and high-performance video recording and reproducing apparatus () and a method thereof include: a first disk device and a second disk device; a mirroring unit which mirrors video data and audio data to an identical logical address employed by the first disk device and the second disk device; a reading unit which reads (i) the video data out of one of the first disk device and the second disk device, and (ii) the audio data out of another one of the first disk device and the second disk device; and a reproducing unit which reproduces, via synchronization, the video data and the audio data read by the reading unit.

Video recording and reproducing apparatus and method thereof

A video processing device includes: encoder for generating a compressed video data by compressing and encoding a video data from camera unit; and system control unit for recording the compressed video data during a recording period from a recording start time to a recording end time as a video file and for recording, into recording memory, additional data as an index file that is information related to a compressed video data to be recorded in recording memory and, for reading the additional data together with the compressed video data from recording memory. System control unit records, into recording memory, the additional data recorded in the index file. The additional data is composed of additional data regarding the compressed video data recorded during the recording period and another additional data including a time code value showing a time at which a compressed video data to be recorded next is started.

Video processing device

A data generation section generates an essence data file composed of a file header, a file body, and a file footer. A header size obtainment section obtains header size information of essence data file from the data generation section, and supplies the header size information to a clip generation section and an index file update section. The clip generation section generates a clip information file that describes the header size information supplied from the header size obtainment section. The index file update section registers a clip element that describes the header size information supplied from the header size obtainment section to an index file stored in a ROM.

Information process apparatus and method, program record medium, and program

A shooting device includes a frame-rate setting section, a shooting section, and a recording section. The frame-rate setting section sets a frame rate at the shooting and a frame rate at the reproducing arbitrarily and independently. The shooting section shoots moving images at the shooting frame rate, and the recording section records video signals of the shot moving images together with information about the shooting frame rate and information about the reproducing frame rate, where both of the information are linked with the video signals.

Moving-image shooting device, method of shooting moving-image, recording medium in which video signals are recorded by the same shooting device, moving-image reproducing device for reproducing the video signals recorded in the same medium, and method of reproducing the moving-image

Provided is a digital video recording system which can properly maintain a corresponding relationship between recorded data in two different kinds of formats which are generated from the same inputted video-audio data, even if those data are managed separately. In a case where the first file is generated as a main material file with a high resolution, and the second file is generated as a low-bitrate audio-video (AV) data file () with a low resolution, a CLIP-UMID () which is identification information unique to the first file is stored in a skip box () in the low-bitrate AV data file ().

Recording apparatus, editing apparatus, digital video recording system, and file format

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.

Recording device, information recording medium and recording method

An image pick-up apparatus includes an image pick-up device of recording a video to generate a video signal, a photographer indication device of indicating a start of a recording and/or a stop of the recording, an AutoREC signal generation device of generating an AutoREC signal in conjunction with the start of the recording and/or the stop of the recording based on the indication, and an AutoREC signal multiplex device of multiplexing a generated AutoREC signal to a generated video signal.

Autorec signal multiplex apparatus, autorec signal multiplex method, program, and recording medium

A recording method is provided for recording data into an information recording medium, in which the number of data rewrites into the same area is limited. The recording method comprises the steps of (a) performing a search for unallocated areas in an information recording area and retaining, in a memory, unallocated area identifying information for identifying at least one unallocated area found by the search, (b) determining whether or not an unallocated area satisfying a record request is present among the at least one unallocated areas identified by the unallocated area identifying information, and (c) when an unallocated area satisfying a record request is present among the at least one unallocated areas identified by the unallocated area identifying information, allocating the unallocated area as an area for recording data and recording data into the allocated area.

Recording method and recording apparatus that limits number of rewrites to the same storage area

A rate control for a VCR or the like records digitized image data by compression coding technologies so that the code amount of the compression coded data becomes a predetermined code amount or less. Even in the case where an interleave is performed among a plurality of blocks, the prediction error of the code amount after the interleave can be reduced and the rate control can be precisely performed by quantizing so that the same quantization table is assigned to each of the interleaved blocks in pre-scanning in the pre-stage of an interleave memory.

Image compression coding apparatus having multiple kinds of coefficient

An image coding and recording/reproducing apparatus for encoding video signals using variable-length coding and for recording the video signals in units of fixed-length sync blocks includes: an orthogonal transform unit for performing an orthogonal transform on each transformation block including a plurality of pixels and for obtaining orthogonal transform coefficients for each transformation block; a coding processor for generating encoded data for each encoding group including a plurality of the transformation blocks, the encoded data being obtained by variable-length encoding the orthogonal transform coefficients of each transformation block and by arranging the resultant encoded transform coefficients in the order of increasing component frequency starting with a low frequency component; a storing processor for dividing a plurality of the sync blocks into low frequency sync blocks and high frequency sync blocks, each of the low frequency sync blocks being assigned with one of the encoding groups, a first portion of the encoded data of the encoding group being stored in the corresponding low frequency sync block from a beginning to an Lth bit, a second portion of the encoded data at a (L+1)th bit and beyond being stored in the high frequency sync blocks in a prescribed order; and a recording unit for recording the low frequency sync blocks and the high frequency sync blocks which store the encoded data therein on a recording medium.

Apparatus and method for image coding and recording/reproducing

Input image data is divided into a plurality of blocks. An orthogonal transform device subjects the input image data to orthogonal transform every block. A memory temporarily stores output data from the orthogonal transform device. A first quantizer quantizes output data from the memory. A coding device codes output data from the first quantizer into variable-length code words. A code amount accumulation device accumulates a code amount of output data from the coding device. A second quantizer separates the output data from the orthogonal transform device into K different groups, and assigns M different scale factors to the respective blocks and quantizes the output data from the orthogonal transform device in the blocks with the related scale factors, where K and M denote predetermined natural numbers. A block code amount calculation device calculates a code amount per block. An initial scale factor calculation device determines an initial scale factor designed to make one of a frame or field into a predetermined code amount. A group target code amount calculation device predicts target code amounts in the respective groups from the block code amounts represented by the output data from the block code amount calculation device. A scale factor correcting device corrects the initial scale factor in response to a prediction error between an actual code amount accumulated by the code amount accumulation device and the predicted target code amount each time the coding device outputs the data of one group.

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Hyogo, Japan

Hideaki Mita