Matches 51 - 100 out of 380 < 1 2 3 4 5 6 7 8 >
Match Document Document Title
5991109 Magnetic recording and reproducing apparatus with signal delay and selection  
A magnetic recording and reproducing apparatus includes a reading and writing head for writing data on data tracks formed on a recording tape and reading the data therefrom to produce a first...
5986829 Digital recording and reproducing apparatus for high-speed copying of tape  
A high speed digital recording and reproducing apparatus fo duplicating of a tape at a speed N-times faster than a speed for a normal speed duplication. The apparatus includes a recording head drum...
5966260 Magnetic tape recording and reproducing apparatus having four heads and two azimuth angles  
A recording and reproducing apparatus for recording and reproducing a data signal on and from a magnetic tape includes a rotary head drum, first and second magnetic heads, third and fourth magnetic...
5963384 Signal recording and reproducing device for transmitting and receiving data  
A signal recording device is provided for transmitting recording data signals via a rotary transformer to a rotary drum having a rotary head for recording data so that control data may be...
5960398 Copyright information embedding apparatus  
A copyright information embedding system is provided which is designed to embed information for copyright protection into digital audio signals without deterioration of analog audio signals...
5953172 High speed recording and reproducing apparatus for avoiding cross talk during insert-recording  
In a digital VTR to which this invention is applied, recording heads 51a, 51b, reproduction heads 52a, 52b and an erase head 53 are disposed on a rotary drum 50 so that the recording heads 51a, 51b...
5912780 Magnetic recording and reproducing apparatus  
A magnetic recording and reproducing apparatus has a rotary magnetic head mechanism having at least a first rotary magnetic head with a magnetic gap set to a azimuth angle less than 90 degrees in a...
5911034 Method and circuit for producing synchronous control signals in video recorders  
In order to produce synchronous control signals of a video recorder, in particular of a digital video recorder, a position pulse of the scanner motor, which coincides with the beginning of the...
5903406 Magnetic tape recording and reproducing apparatus for analog and digital combined use  
An analog and digital combination recording and reproduction apparatus uses the existing head layout found in an analog recording and reproduction apparatus such as an existing VHS system, for...
5903699 Apparatus for reproducing a signal from a magnetic recording medium  
A signal reproducing apparatus operates on a magnetic tape on which information is recorded according to one of first, second, and third predetermined recording formats. The signal reproducing...
5894376 Apparatus and method for monitoring read/write reliability of data storage device  
The present invention provides an apparatus and method for monitoring the read/write reliability of data storage devices contained within a data cartridge library system. The data cartridge library...
5886843 Recording and playback apparatus using a helical-scan-type rotary head  
In order to enable both reproduction of the azimuth-recorded old format and recording and reproduction of the new format of a different azimuth angle without increasing the number of heads, the...
5878183 Digital video/audio recording and reproducing apparatus  
A digital video/audio recording and reproducing apparatus comprising a video signal high-efficiency encoder having a variable reduction rate, an audio signal high-efficiency encoder having a...
5867639 Method for the recording and reading of a two-layer magnetic tape, and system of implementation  
Data validation uses redundant storage of the data on two-layer magnetic tapes. A method and system provide data recording and reading on such magnetic tapes with a high degree of protection from...
5850315 Tape recording medium with audio data or video data or computer data or a mix thereof recorded in slant tracks in two longitudinal portions  
A tape recording medium with slant tracks formed in two longitudinal areas above and below a center line on the recording medium, wherein the slant tracks each include subcode data at a midportion...
5844745 Magnetic head assembly having two heads with the magnetic layer of one head angled between 80° to 100° relative to the gap of the other head  
A magnetic head assembly having two heads with the magnetic layer of one angled between 80 to 100° of the gap of the other, and method and apparatus using same. The angle formed on a magnetic tape...
5825971 Magnetic head replacement structure in helical scan magnetic recording and reproducing apparatus and method thereof  
A head arrangement and head offset are set so that the track pattern continuously recorded on a continuously running tape will be ordered in the sequence of recording when taken along the time...
5812348 Rotary transformer of a head drum assembly for a video cassette  
A rotary of a head drum assembly for a VCR in which the structure thereof is simple, thereby facilitating the manufacture and assembling thereof. Stator and rotor bodies of the rotary transformer...
5790746 Multichannel digital-signal reproducing apparatus for switching access timing relative to reproducing timing based on a determination of recorded/reproduced information  
An apparatus for reproducing digital information from a recording medium having a plurality of parallel tracks and digital information recorded thereon as n-channel (n being an integer greater than...
5784217 Magnetic recording and reproduction apparatus with selectively-enabled rotary heads  
A magnetic recording/reproduction apparatus comprises a magnetic tape running apparatus to rotate a rotary drum and run a magnetic tape with the magnetic tape being contact with, at least, part of...
5784215 Method and apparatus for recording and reading variable speed data using a rotating drum device  
A method and apparatus for recording and replaying variable speed data uses a rotating drum device. When information to be recorded is presented to the transfer rate of the information, be recorded...
5715108 Video tape player for displaying a previously recorded video signal read from a magnetic tape during high speed recording of an externally supplied video signal  
A video cassette recorder (VCR) is disclosed which is capable of displaying the video being erased during a recording operation. Thus, during a recording operation the user is able to monitor the...
5684916 Apparatus and method for automatic tracking during abnormal playback of a video tape  
A video tape playback device in which heads are tracking-controlled according to a predetermined tracking control value, in order to accomplish automatic tracking so that noise is not regenerated...
5677803 Apparatus for recording data signals and a signal having a repetitive frequency to a recording medium and/or for reproducing the data signals therefrom  
By merely using one reproducing head, an overwriting operation and an ATF operation can be performed, thereby reducing a crosstalk obstruction and modulation noises. Recording heads 7 and 8 having...
5677807 Method and apparatus for generating a control signal  
A method of generating a control signal is comprised of the steps of detecting a drum rotational amount on the basis of a switching signal which switches a plurality of rotary heads, detecting a...
5675447 Method and arrangement for initiating search for start of data in arcuately recorded data tracks  
A method and arrangement that provides the proper timing for starting the search for a format timing mark on arcuate data tracks recorded by an arcuate scanner prevents mis-identification of the...
5661613 Rotary transformer circuit for multiple head video cassette recorder employing a single channel rotary head transformer  
A rotary transformer circuit, for a video cassette recorder, including: a single rotary transformer; a plurality of magnetic heads for recording/playing back signals on the magnetic tape; and a...
5657309 Video disc recording and playback system with two recording areas to record an information signal and a reference signal  
A disc recording device for recording a first information signal and a second information signal, e.g. a pilot signal, on a disc-shaped recording medium comprises an optical pick-up having first...
5655048 Image reproducing apparatus capable of eliminating vertical wobbles  
A first head changeover signal generation circuit generates a first head changeover signal to be used for switching between first heads and between second heads. A second head changeover signal...
5629812 Magnetic-tape apparatus comprising a rotary scanning device with stepwise head control  
A magnetic-tape apparatus with a rotary scanning device in which a plurality of magnetic heads are mounted at the circumference and are associated with rotating amplifiers, which for the signal...
5625504 Magnetic recording and reproducing system  
A time lapse magnetic recording/reproduction apparatus for recording and reproducing picture signals while intermittently thinning them out in a frame unit is used for monitoring and...
5619385 Video tape recorder carrying out field extraction recording and/or reproduction of a video signal  
A time lapse VTR carrying out field extraction recording includes a gate for extracting intermittently a supplied video signal at a ratio of one field to every three fields, a switching circuit for...
5615062 Rotary head type recording apparatus  
A rotary head type recording apparatus comprises a rotary head which is arranged to record signals on a tape-shaped recording medium by tracing the medium; a transport device for longitudinally...
5589992 Magnetic recording and reproducing apparatus for performing slow-motion reproduction with higher quality of image  
In a magnetic recording and reproducing apparatus for reproducing a video signal recorded on a video track of a magnetic tape by pair of magnetic heads arranged in a rotation drum so as to oppose...
5585973 Magnetic recorder and/or reproducer of eliminating crosswalk interference in both a long time record mode and a standard record mode  
A magnetic recorder and/or reproducer is provided for preventing a crosstalk phenomenon from occurring between adjacent tracks by a "wide head" during "long time" record mode. The magnetic recorder...
5576907 Variable speed recording and/or reproducing apparatus including a plurality of rotary heads arranged with head gaps having particular azimuth angles  
In a recording/reproducing apparatus having rotary heads, heads A, C, E and G having a first azimuth, and heads B, D, F and H having a second azimuth are alternately arranged, and heads A' and E'...
5563745 Tracking control apparatus and method for digital/analog video recording/playback, which uses the analog heads for tracking control during digital recording/reproduction  
Tracking control apparatus and method for a digital/analog recording/playback system which is capable of recording and playing back a digital video signal as well as an analog video signal...
5539589 Magnetic reproduction device and method for ensuring reproduction of recorded information by a magnetic head of a same azimuth angle as used to record information  
A magnetic reproduction device includes a comparator for comparing the level of reproduced signals obtained by tracing the same track with magnetic heads having different azimuths, and switches for...
5532887 Magnetic recording and reproduction apparatus  
A magnetic recording/reproduction apparatus comprises a magnetic tape running apparatus to rotate a rotary drum and run a magnetic tape with the magnetic tape being in contact with, at least, part...
5528433 Wide picture video recording/reproducing system  
A video tape recorder enables a normal video signal for an aspect ratio of 4:3 or a wide-picture video signal for a greater aspect ratio of, for example, 16:9 to be selectively recorded/reproduced...
5519544 Magnetic recording/reproducing apparatus with dual purpose heads  
A magnetic recording/reproducing apparatus for expanding the functions of the VTR with a limited number of heads. The apparatus includes audio heads A1 and A2 having azimuth angles of ±30 degrees...
5519547 Magnetic recording and reproducing apparatus recording and reproducing plural types of data signals at different data rates  
A magnetic recording and reproducing apparatus for recording and reproducing plural types of data signals respectively different in data rate, and capable of completely eliminating noise when...
5506733 Apparatus for recording and reproducing digital and analog video signals using two analog record/reproduce heads and two digital record/reproduce heads, respectively  
An apparatus for recording and reproducing digital/analog video signals including a single head drum attached with heads for processing analog video signals and heads for processing digital video...
5504631 Magnetic recording/reproducing apparatus provides error corrections in write-after-read processing  
A magnetic recording/reproducing apparatus in which the reproduced audio data is processed and is recorded in every N cycles during which the reproducing magnetic heads scan a pair of recording...
5502603 Rotating head type recording/reproducing apparatus which uses wide recording heads to record a single pilot signal over three tracks and preventing overwriting of the pilot signal by the next head scan  
A recording head Hw1 records a record signal including a data region, a pilot signal region, and a mask region with a width of 3 Tp. A recording head Hw2 overwrites the record region of the head...
5499147 Rotary head recording and reproduction apparatus with memory and method of operation which compares a reproduced signal with an original signal  
A method and tape recorder apparatus are disclosed for recording a signal on a tape. The tape recorder apparatus is provided with a memory for storing a signal to be recorded on a tape. The tape...
5495369 Apparatus for recording and/or reproducing an electric signal on/from a magnetic record carrier  
An apparatus for recording an electric signal (A) on a magnetic record carrier (1) includes at least one pair of write heads (K 1 , K 2 ) having a mechanically rigid coupling to each other and...
5493456 Method and apparatus for increasing the recording time of a digital video tape recorder  
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...
5486955 Video tape recorder in which a video signal to be displayed is produced by utilizing a single main magnetic head  
An improved helical scan type video taperecorder for reproducing a high quality video signal with no distortions, and thereby eliminating a sag distortion is provided by applying a continuous...
5483389 Reproducing apparatus for temporarily writing reproducing data into memory  
In an apparatus for reproducing main information data from a recording medium on which data train including the main information data, address data, and error correction data for an error...
Matches 51 - 100 out of 380 < 1 2 3 4 5 6 7 8 >