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5809209 |
Video signal recording apparatus with varying interleaving of digital video signals
In a video signal recording apparatus in which video signals are digitized and, after the data arrangement has been transformed, are recorded on a recording medium, the video signals corresponding...
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5809207 |
Digital signal recording and/or reproducing apparatus having a phase-locked loop for generating a clock signal from recording signals during a recording operation and reproducing signal during a reproducing operation and a method thereof
An apparatus and method for recording and/or reproducing a digital signal. An input digital signal is received and processed by a recording processing device so as to form a recording signal. The...
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5799130 |
Video signal recording apparatus
An apparatus for digitizing video signals and recording the digitized video signals on a recording medium. Digital video signals corresponding to one picture are subjected to a first arrangement...
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5790747 |
Digital video signal recording apparatus with shuffling across an entire high definition image
A serial data stream representing an image is divided into a plurality of data streams, which are selectively combined to form collected data streams that are respectively blocked, shuffled,...
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5784520 |
Audio signal reproducing apparatus
A de-shuffling circuit of a first audio processor 21 performs the following signal processing. When an audio signal is to be reproduced from a video tape 1 in which an audio signal having 4004...
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5784526 |
Multisystem signal processing apparatus having specific hierarchical coding
When the low bit rate coding is effected in a recording system 1A, a signal is coded and recorded in a hierarchical structure. On the reproduction side, the type of a recorded signal (the low bit...
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5781690 |
Video signal recorder having a frame coder
In the video signal recording apparatus of the present invention, when recording video signals of a plurality of frames after highly efficiently coding the same, video signals of the first frame...
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5778064 |
Apparatus and method for processing a high definition video signal
Digital video tape recorder which reproduces from a record medium a digital high definition video signal having copy-prevention data therein, extracts the copy-prevention data from the reproduced...
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5771335 |
Fast forward/reverse travel controlling method for video on demand system
A fast forward/reverse travelling controlling method in a VOD system using a MPEG 1 which can perform a fast forward/reverse travelling control in real-time processing with respect to video data of...
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5754730 |
Method for predicting what video data should be in a cache which is in a disk-based digital video recorder
A digital video recorder employing standard hard disk arrays employs a caching system to enable continuous video data to be supplied to and provided from the standard disk drives which may not be...
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5754729 |
Apparatus for controlling the decoding operation in accordance with discontinuity in the stored data
Apparatus for reproducing data from a recording medium and storing the reproduced data in a buffer. A decoding operation may be selectively started or inhibited in accordance with a discontinuity...
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5745642 |
System to add selectivley persistent resource data to unused bandwidth of digital movie
A method for improving the performance of a multimedia software by interleaving resource and movie data is provided. It is observed that movie data has uneven demand for bandwidth. There are frames...
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5706385 |
Rotary head type magnetic recording and reproducing apparatus
A rotary head type magnetic recording and reproducing apparatus for recording and reproducing an analog wide-band video signal, audio signal and compressed digital signal on the same recording...
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5699476 |
Method and apparatus for transmitting and/or storing a series of hierarchically encoded digital image data blocks
A system for transmitting a series of images of a full motion video scene in a digital format whereby the series of images is divided into a number of sub-series which, when interleaved, represent...
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5696558 |
Coding apparatus
A coding apparatus for reduction and variable-length-coding of digital image data, wherein the image data is once variable-length-coded to obtain a variable length coded data. The variable length...
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5689611 |
Panorama image producing method and apparatus
A method and an apparatus by which a panorama image is produced with a high degree of accuracy from an image signal are disclosed. An image signal produced by a CCD imaging element is recorded onto...
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5689612 |
Image signal processing device
An image signal processing device generates first image data and second image data based on the same optical image. Each pixel of the second image data is offset from the corresponding pixel of the...
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5677980 |
Decoder for compressed digital signal
A decoder for decoding compressed data obtained through compression of digital data based on a high efficiency coding technique. The compressed data is processed in units of a predetermined amount...
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5675696 |
Digital video signal recording and reproducing apparatus
A digital video signal recording and reproducing apparatus which obtains a favorable reproduced picture even when the data overwritten by edited data is interpolated with the data of the preceding...
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5675697 |
Signal restoring apparatus in DVCR using two threshold values
A signal restoring apparatus in a DVCR, which generates a bit erasure signal by using two threshold value and uses the same in detection of synchronism so that error detection/correction rate in...
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5668918 |
Method for recording digital data using a series of adjacent heads of alternating azimuths located on a headwheel to record data at a rate that is less than the full recording rate possible using the heads
Method for increasing the recording time of a digital video tape recorder ("VTR") and for supporting multiple normal play modes of digital VTR operation, e.g., a standard play mode of operation and...
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5661846 |
Reversely reproducing apparatus for DVCR
A reproducing apparatus for a DVCR having a reverse operation function includes a data restoring portion for restoring a serial clock and reverse-serial data from an input signal; a servo portion...
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5655050 |
Apparatus and method for recording and reproducing digital signal in synchronization blocks
A digital signal recording apparatus for recording digital signal in synchronization blocks includes a generator for generating a synchronization pattern for indicating the beginning of each...
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5647049 |
Video recording/reproducing apparatus which uses a differential motion vector determined using two other motion vectors
A video recording/reproducing apparatus having an encoder for encoding a video signal, and a recording unit for recording encoded information from the encoder on a digital recording medium, the...
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5642242 |
Processing system for digital video signal
In an encoding circuit for a digital video signal, a digital video signal is subjected to given orthogonal transform to be converted into corresponding conversion data. Components of the conversion...
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5642460 |
High efficiency coding recording and reproducing apparatus
A digital image signal is coded into an intra-picture component I, a forward predictively component P, and a bidirectionally predictively component B. These components are then time divisionally...
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5631998 |
Method for recording and/or reproducing data using a digital video tape
A method for performing a trick play in a digital video tape apparatus for recording and/or reproducing an advanced television (ATV) signal is performed such that the data area of a sync block...
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5629811 |
Video signal recording apparatus with transforming an arrangement of video data
An apparatus for digitizing video signals and recording the digitized video signals on a recording medium. Digital video signals corresponding to one picture are subjected to a first arrangement...
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5623344 |
Digital video recording device with trick play capability
A digital video tape recorder ("VTR") that selects data useful for generating images during trick playback operation and records the data in trick play tape segments arranged on a tape to form fast...
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5619337 |
MPEG transport encoding/decoding system for recording transport streams
A system records a single program from a multi-program transport stream that is encoded according to the MPEG-2 standard. The system demultiplexes transport packets from the multi-program transport...
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5617263 |
Method of and apparatus for recording data suitable for a digital recording in a multiplexed fashion
An information data composed of a predetermined quantity converted from input data and an information data parity for use in detecting or correcting an error in the information data are formulated....
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5613032 |
System and method for recording, playing back and searching multimedia events wherein video, audio and text can be searched and retrieved
A system for recording and playing back multimedia events includes recording sources, a preprocessor, a delivery processor, and user control units. The recording sources each captures a continuous...
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5602685 |
Method and apparatus for interleaving data in a digital recording system
A data interleaving method for a digital recording system providing increased error correction capacity includes steps for determining a moduli number (NMod) in accordance with the number of fields...
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5594550 |
Digital signal recording apparatus for recording digital data comprising a plurality of recording blocks
A recording apparatus for recording digital data comprised of a plurality of recording blocks on a recording medium includes a grouping circuit which makes a group of the digital data according to...
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5589943 |
Apparatus for recording digital still image signals and analog still image signals in respective recording areas
An apparatus is arranged to record a video signal in first areas respectively provided in a multiplicity of tracks on a recording medium and also a digital still-image signal in second areas which...
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5583567 |
Digital image data processing apparatus for storing and/or reading digital data at multiple rates
An image storage system for storing in a storage medium digital image data corresponding to an image. An object is imaged and the digital image data are stored in the storage medium according to...
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5579181 |
Apparatus for processing reproduced data including two multiplexers the first of which is responsive to reproduced field information
Apparatus is described for multiplexing data recorded in a spatially and temporally demultiplexed manner on tape 12 and replayed by a plurality of replay heads A, B, C, D organized in groups, where...
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5552941 |
Method of recording/reproducing digital data including recording region allocation
A recording/reproducing method which is capable of responding to the recording of various applications by flexibly changing the format of recording regions on a track of a recording medium. A track...
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5550643 |
Trick-play VCR for digitally coded video
A video signal processor receives a digital video input signal containing I-data and other data in random positions in a data frame. A pre-processor separates the frames into the data components. A...
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5548410 |
Analog-cum-digital video recording and reproducing device
An analog-cum-digital video recording and reproducing device which can perform recording and reproduction of HDTV digital signals as well signals as well as recording and reproduction of VHS analog...
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5546192 |
Device for recording an image signal so that the resulting recorded signal has a smaller number of horizontal scanning lines in a field
An image signal recording device records image signals in a HDTV mode onto a magnetic disk in accordance with a predetermined mode, for example, an NTSC mode. The NTSC mode is provided with a...
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5546118 |
Data recording/reproducing method and data send-out method
A data recording/reproducing method for a so-called near video-on-demand for time-differentially distributing motion picture films or the like. When recording continuous data of, for example, a...
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5546244 |
Method of recording/reproducing ATV signals divided into trick play data and normal play data
A digital video tape recording method for trick play includes the steps of dividing the data area of a video sector of respective tracks of the digital video tape into first, second and third...
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5535245 |
Modulation/demodulation circuit for a digital signal recorder/reproducer
A modulation circuit for a digital signal recorder includes first and second high-pass filters for removing the direct current component in the output of the coded I and Q channels and for...
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5517599 |
Data recording system and method having logical overrecording capability
A recording and reproducing system which has the capability of recording user data and system format data in physical blocks of predetermined size on a recording area of a tape, with the user data...
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5502571 |
Device for processing digital signals first coded by means of variable length coding and device for inversely processing signals thus processed
Device for processing digital signals constituted by image blocks and hierarchically arranged types of data. This device comprises an addressable memory (40) for storing said signals, a circuit...
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5493341 |
Digital non-linear pre-emphasis/de-emphasis apparatus for video signals in a video signal recording and reproducing apparatus
A digital non-linear pre-emphasis/de-emphasis apparatus includes a first filter for multiplying an input signal by a first coefficient varying non-linearly according to the amplitude of the input...
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5491590 |
Rotary head recording and playback apparatus and method
In a method of recording digital information signals to form tracks on a magnetic tape, the samples of the signals to be recorded are divided into a plurality of odd sample groups and a plurality...
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5490094 |
Method and apparatus for noise reduction
A noisy input signal x is filtered with a restoration filter of median type to generate a filtered input signal y. The sum of the absolute differences between filtered and unfiltered signal is...
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5486931 |
Digital video signal recording and reproducing method and apparatus thereof
A recording/reproducing method includes helically scanning a first region of a magnetic tape running at a normal speed using several rotary heads, recording a digital data train on several sloped...
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