Abstract: Apparatus for recording or reproducing a video signal has a user-controlled starting point setting device enabling a user of the apparatus to set a time code representative of a recording starting point. A user-controlled frame number setting device enables the user to set the number of frames to be recorded. A frame memory records an arbitrary one frame of an input video signal. A controller calculates a time code representative of a recording ending point on the basis of the time code of the starting point set by the user and the number of frames set by the user and controls the frame memory so that the video signal written in the frame memory is repeatedly read out and recorded during a period from the recording starting point to the recording ending point.

Abstract: A storage and retrieval mechanism for a digital image processing system employs a reduced capacity frame store in the playback device. A plurality of photographic images captured on a photographic recording medium are digitized for processing and subsequent display. Digitized images are stored on a compact disc. When the disc is inserted into a playback device for driving a color TV monitor, the playback device decodes header information representative of image orientation, so that the image will be read from the disc and stored in the reduced capacity frame store for subsequent read out and display in an upright orientation. A memory control mechanism employs a decimation/interpolation operator to interface the imagery data from the disc to the frame store.

Abstract: Time warping for video viewing is achieved by providing a random access dynamic buffer for a video signal from a selected video channel. The video signal is continuously written into the dynamic buffer in a recirculating fashion, and may be read out on a random access basis so that the viewer may control the realtime video viewing in the same manner as controlling a video cassette recorder up to the duration of the video signal stored in the dynamic buffer. In addition the viewer may view the video at various speeds and skip to any point in the stored information. Portions of the video signal in the dynamic buffer may be stored in a static buffer or transferred permanently to a video cassette recorder for subsequent manipulation by the viewer. To expand the capacity of the dynamic buffer a compression circuit may be provided for compressing the video signal before being written into the dynamic buffer.

Abstract: A video signal mixing apparatus for mixing a playback composite video signal produced by playing a recording medium and a graphics composite video signal generated on the basis of video data read from a memory device, wherein a vertical synchronizing signal of the playback composite video signal is forcedly generated in response to a vertical synchronizing signal of the graphics composite video signal to make the number of horizontal scanning lines of the playback composite video signal coincident with the number of horizontal scanning lines of the graphics composite video signal.

Abstract: An information recording and reproducing apparatus of the rotary head type which is simple in construction and allows, when record data to be re-record are prepared, only the prepared record data to be re-record in a postrecording mode readily. The information recording and reproducing apparatus comprises a digital mixer which replaces data reproduced from a selected portion of a recording medium with record data to be re-recorded, and the resulted data are supplied by way of a recording circuit to a pair of recording magnetic heads so that they are recorded to the selected portion of the recording medium. The recording magnetic heads are mounted on a rotary head at mounting heights lower than a pair of recording and reproducing magnetic heads disposed on the rotary head.

Abstract: Rotary head recording and/or reproducing apparatus in which respective oblique tracks on a record medium are scanned, each track having an information signal area in which information data is recorded and a track following area in which a tracking control pilot signal is recorded. The track following area precedes the information signal area; and in the preferred embodiment, an additional track following area follows the information signal area. The pilot signal is recorded in only a portion of the track following area, the remainder of which has timing sync data recorded therein. In an after-recording mode the timing sync data is reproduced, detected and used as a reference to define an after-record area.

Abstract: A computer is connected to VTR units and a CRT monitor through lines. Each of the computer and the units to be controlled thereby is provided with a clock means for sharing the same time. The computer sends to the VTR unit a command for releasing record pause state and starting the record operation at time T1. After the VTR unit started the record operation, when the counter value became x, the VTR unit sends time Tx to the computer. The computer computes formulaD=Tx-T1-xso as to obtain delay time D. In determining the present tape position of the VTR, the computer obtains data of counter value Pc and time Tc from the VTR, and assigns the present tape position Pn of the VTR using the formulaPn=Pc+(Tn-Tc),where Tn is the time at which the controller receives the signal from the VTR.

Abstract: A recording apparatus of the present invention includes selective guard adding means for predicting, at the time of editing, positions of adjacency of new tracks to previously recorded tracks obtained at the time of completion of new track recording, and adds, at the time of editing, guards to locations where disturbance due to residue of erasing of the same azimuth might occur in order to remove or reduce the disturbance due to residue of erasing of the same azimuth caused at the editing point. When performing reproduction from a recording medium whereon tracks recorded by heads of at least two kinds of azimuth angles are disposed alternately and a plurality of tracks are handled as one recording unit and recorded, a reproducing apparatus of the present invention is so configured that the center of each of heads located at both ends of reproducing heads may be shifted to the inside as compared with each corresponding recording track.

Abstract: In a magnetic recording and reproducing apparatus such as DAT, when recording an acoustic signal which is a series of recording information on a magnetic tape, a program start signal is recorded automatically at the start of recording. This program start signal indicates a program recording start position on an acoustic signal or the like. This program start signal can be additionally recorded in a magnetic tape in which a program has been already recorded. When the program start signal record button is pressed while reproducing the magnetic tape, plural recording areas including the recording area which has been reproduced at the time of pressing are reproduced repeatedly. A recording area to be recorded additionally may be arbitrarily specified in such plural recording areas being reproduced repeatedly. The front-rear relation of the specified recording area may be confirmed by lighting an indicator or by the change of reproduction level during repetitive reproduction action.

Abstract: A customized album recording system is under the control of a central microprocessor or mini-computer. A master library or storage medium is filled with a repertoire of recorded information items (such as musical selections) which may originate with any suitable source, such as phonograph records, tapes, sound tracks, compact discs, or the like. Each information item is stored in the library under its own address. On read out, an operator keys in the addresses identifying the selected items which are read out of the library medium and stored in a large capacity memory, usually to provide about forty-five minutes of total listening time. Then, all of the music is read out of that large capacity memory and recorded at a high speed onto a suitable album size medium, such as a tape cassette, for example. The source music and the customized album music are usually recorded in an analog form. The music which is processed within the system is in a digital form.

Abstract: A single channel circuit and method for the automatic edit optimization of a recording medium which is operable with a recorder such as a video tape recorder or a disc recorder utilizes the difference between signal outputs from an automatic scan tracking playback head and a record, head to provide a difference signal indicative of the rf amplitude fluctuations caused by scene or data pattern variations of the data stored on the recording medium. A correction signal corresponding to the difference signal is stored, and used as a feedback signal to normalize the gain of a variable gain amplifier. The single channel is switched at a predetermined rate between circuitry coupled to the automatic scan tracking playback head and circuitry coupled to the record head in order to obtain rf amplitude samples from both heads to develop the correction signal. Thereby, the correction signal allows a precise edit optimize so that a subsequent edit operation such as an insert edit can be precisely performed.

Abstract: An apparatus for generating a high speed dubbing signal to be recorded by an external recording apparatus. The high speed dubbing signal, whose pitch is N times that of a digital input signal, is generated as follows. An encoding circuit subsamples the digital input signal consisting of frame signals each of which consists of N field signals, so that each frame signal is compressed by a factor of N to be contained in one field interval. A digital signal recording and reproducing circuit including a recording and reproduction system, records on a tape, at a normal tape speed and at a normal head drum rotational frequency, the compressed signal in such a manner that each field including the compressed signal appears once per frame interval, and then selectively reproduces from the tape the field including the compressed signal at a tape speed N times the normal speed and at the normal drum speed.

Abstract: A system employing a shift register for serially delivering the bits of recreated IEC time code from a DAT recorder to a video recorder for synchronous playback of audio and video information. In order to accomplish exact synchronization despite possible variations in the frame lengths of the IEC time code recorded, the shift register is driven by a variable frequency clock. During playback the actual phase differences between the DAT frames and the IEC frames being output are detected, and deviations of these actual phase differences from desired phase differences between the DAT frames and IEC frames supplied are constantly monitored. The repetition frequency of the clock pulses applied to the shift register is increased or decreased whenever the deviation of each actual phase difference from one associated desired phase difference exceeds a predetermined limit.

Abstract: Methods and apparatus are provided for recording and reproducing digital information signals including image and audio portions in successive tracks on a magnetic tape. An ID signal is produced for one of an image portion and an audio portion of a corresponding digital information signal to be recorded. The ID signal indicates whether the portion is to be after-recorded in a respective track. The ID signal is combined with the portion to form a recording signal. Previously recorded digital information signals are reproduced from the track and an ID signal thereof is obtained. The recording of the portion in the track is controlled based on the reproduced ID signal.

Abstract: A magnetic recording/reproducing apparatus for recording and reproducing a plurality of discrimination information corresponding to signal modes on a magnetic recording medium by utilizing a control signal. The plurality of discrimination information are indicated by discrimination information words which are determined by removing words, each of which is undistinguishable from the other words when being continuously arranged, from 2.sup.(2N-2) words each of which comprises 2N bits (N is a natural number equal to or more than 2) whose first bit is fixed to "L" or "S" and last bit is fixed to "S" or "L" and further by removing words which have an intermediate odd bit and the following even bit identical to the last bit and the first bit, respectively, from said 2.sup.(2N-2) words. This arrangement can record and reproduce both the discrimination information and VISS.multidot.VASS information and, in addition, can substantially record the back track prevention information.

Abstract: A recording and reproducing apparatus includes two recording heads, two re-recording heads and one erasing head. The two recording heads are utilized to record directly adjacent recording tracks having no guard band therebetween. The adjacent recording tracks constitute a recording track set, and a plurality of such recording track sets are recorded on a recording medium such that a guard band is provided between adjacent ones of the recording track sets. The erasing head has an erasing width which is greater than a corresponding width of each recording track set, and it utilized to erase an already recording track set which was recorded using the two recording heads. The re-recording heads each have a recording width which is greater than that of each of the two recording heads, and are utilized to record newly recorded track sets in place of the already recorded track sets erased by the erasing head.

Abstract: A device (1) for recording and playing back information signals has a connection apparatus (17) via which another such device (35) can be connected to the device (1) in order to carry out a copy operation. The other device (35) emits a control voltage U1 when a high level H with the "playback" mode of operation is switched on in the same. A copy instruction can be intentionally issued to the device (1) for example by actuating a key (46). The device (1) has a first detector (49) for detecting the control voltage U1 with a high level H emitted by the other device (35) and a second detector (50) for detecting an intentionally issued copy instruction. The "record" mode of operation is only switched on in the device (1) in order to carry out a copy operation in the event of both detectors (49, 50) being triggered simultaneously.

Abstract: A disc recording/reproducing apparatus according to the present invention intermittently records and reproduces compressed digital audio data in normal recording/reproduction. In high-speed dubbing of digital audio data, two of such apparatuses are used, wherein compressed digital audio data is continuously reproduced from a disc for reproduction by the reproduction side apparatus to be directly applied to the recording side apparatus and continuously recorded on a disc for recording. Thus, the compressed high-speed dubbing of the digital audio data can be achieved without increasing a rotation speed of the disc even in high-speed dubbing.

Abstract: A device and method for editing a signal recorded on a magnetic disk. An image signal recorded on a first track of the disk is stored in a first memory, and then the signal of the first track is erased. An image signal recorded on a second track of the disk is stored in a second memory, and then the signal of the second track is erased. The signal stored in the first memory is recorded on the second track, and then the signal stored in the second memory is recorded on the first track.

Abstract: A system for making multiple duplicates of live program material or dubbing from a master cassette comprises a central control panel for operating a master deck and simultaneously controlling a plurality of slave decks. Operation of the system selectively in live performance recording and dubbing modes of operation is controlled from separate switches at the control panel while override circuitry prevents recording on the master if live performance recording and dubbing operation switches are operated simultaneously. Each deck includes a pivotable cassette lid and a pack switch responsive to the lid to control the corresponding deck independently of the others enabling recording from live programming to be staggered in time among multiple cassettes. During dubbing, when both the master and slave decks are to be operated, the master deck is delayed upon start-up for a duration sufficient to compensate for the nonrecordable leader portion of the slave cassette.

Abstract: A digital signal recording method and apparatus for recording first digital data and second digital data on a writable disc without an interleave discrepancy therebetween. The first digital data is previously recorded and the second digital data is at least one of overlapped and joined with the first digital data on a writable disc so that no interleave discrepancy occurs.

Abstract: An extended circuit of a HiFi KARAOKE VCR having a simultaneous singing and recording function, wherein an audio erasing head (AE head) on the KARAOKE VCR is used to erase the sound on a normal track of a HiFi KARAOKE program tape and then use the audio control head (A/C head) on the VCR to record the user's desired sound, also stereo, left (L), right (R) or normal sound may be chosen by using an audio select switch on the HiFi VCR. While a tape recorded plays, once the audio select switch selects a normal channel position, the sound recorded on the program tape and the original accompaniment sound of said program tape may be heard.

Abstract: A recording and reproducing apparatus is to monitor the information to be recorded actually by the recording heads. The recording and reproducing apparatus comprises a digital mixer for inputting signals from the multiple preceding reproducing heads corresponding to the multiple recording tracks respectively and performing the prescribed signal processes and simultaneously outputting the signals inputted to the monitor speaker, and cross fader circuits for shifting signals from the digital mixer or the multiple preceding reproducing heads and outputting to the recording heads placed on the back of the preceding reproducing heads, and which is adapted to rewrite the information recorded on the first recording track of the recording medium to the second recording track.

Abstract: A video signal recording/reproducing apparatus is provided a rotary drum, recording and reproducing heads. Synchronous separation units separate vertical synchronous signals from input and reproduced signals. A memory stores a time difference which represents an elapsed time between when the recording and reproducing heads pass a given location. The time difference stored in the memory is used to control the rotation of the rotary drum.

Abstract: Disclosed are an editing apparatus and a method in a vide tape duplicating system for effectively editing using an automatic search function of the starting and ending points of a program to be edited. The editing apparatus includes a key input, an edit adjuster, a playback system, a recording system, a display and a system controller. The edit adjuster controls the editing operation to allow a playback signal within a preset editing section output from the playback system to be recorded on the recording system in accordance with the output signal of the key input. The editing method is performed by a first editing step of setting starting and ending points for at least one editing sections on a recording medium in the playback driver, and controlling the editing operation by the detection of the starting and ending points marking information on the editing section which is randomly set from points between the initial point and the final point of the recording medium.

Abstract: A recording apparatus of the present invention includes selective guard adding means for predicting, at the time of editing, positions of adjacency of new tracks to previously recorded tracks obtained at the time of completion of new track recording, and adds, at the time of editing, guards to locations where disturbance due to residue of erasing of the same azimuth might occur in order to remove or reduce the disturbance due to residue of erasing of the same azimuth caused at the editing point. When performing reproduction from a recording medium whereon tracks recorded by heads of at least two kinds of azimuth angles are disposed alternately and a plurality of tracks are handled as one recording unit and recorded, a reproducing apparatus of the present invention is so configured that the center of each of heads located at both ends of reproducing heads may be shifted to the inside as compared with each corresponding recording track.

Abstract: An editing apparatus for use with a tape-form recording medium is provided in which, according to a positioning signal and a tracking pilot signal multiplex-recorded into the first recording area of each track of the recording medium which consists of a plurality of recording areas separated from each other by gaps, a pilot sampling signal for determining the timing of sampling and an editing timing signal for determining the recording location in a desired recording area following the first recording area are produced. After the tracking control is executed through sampling the tracking pilot signals from adjacent tracks at the timing of the pilot sampling signal, a data signal is recorded into the desired recording area after the first recording area according to the editing timing signal.

Abstract: A rotary head type magnetic recording and playback apparatus for performing an after recording only to a desired signal area by using a head (1,3) 2,4) having a core width broader than the track width (Tp) of a recorded tape (7), wherein recording heads (1,3) and playback heads (2,4) are provided at every channel (A,B), respectively, the respective heads are arranged at angular intervals of 90 degrees so that the playback heads precede the recording heads in the rotational direction (FC) of a rotary drum (8,9) in a plane of rotation thereof, and the respective heads are offset in the axial direction of the rotational axis of the rotary drum so that the lower edge (R) of each recording head traces the boundary portion between the tracks and the centers of the playback heads trace the central portion of the tracks.

Abstract: A personal customized video recording 10 is described along with the process and apparatus for producing such a recording. The recording has the desired length which includes a desired sequence of personal image segments 34 that are taken from a series of still photographs 12 of a featured person. A personal image video tape 14 is produced which is utilized in conjunction with a scenic image video storage medium or tape 16. Additionally a prerecorded audio musical storage medium or tape 18 is utilized. All three of the mediums 14, 16, and 18 are placed in recorders and operated in real time continuously and without interruption to produce a composite master video recording of the desired length. A vast majority of the scenic images are interleaved between the personal images. A majority of the personal images and a majority of the scenic images appear to have movement utilizing zoom/panning techniques.

Abstract: An apparatus and method for use in appending data to data that has been previously established on a tape in a helical scan tape recorder that results in the spacing between the appended data and the previously established data being within a defined range. The present invention provides a method for measuring the total delay associated with the write and read circuitry within the recorder and a method and apparatus for using the total delay to initiate the writing of the data to be appended to the previously established data on the tape at the appropriate instant to achieve the desired spacing. An apparatus and method for compensating for inaccuracies in the measured total delay to prevent "creep", i.e.

Abstract: An editing apparatus has a storage unit in which a plurality of recorded media, such as, tape cassettes, are stored at respective storage positions, a first memory for storing data identifying the recorded media in the storage unit and data representing the respective storage positions thereof, a playback device for reproducing information signals from recorded media at a loaded position therein, a recording device for recording on a recording medium, such as, another tape cassette, the information signals reproduced by the playback device, a second memory for storing the data identifying the recorded media loaded in the playback device, a transport device for carrying the recorded media between the respective storage positions in the storage unit and the loaded position in the playback device with the data stored in the first and second memories being updated in response to operations of the transport device, and a control system by which operations of the transport device are controlled in accordance with i

Abstract: A continuous both-side playback type video disc apparatus having an external command signal generator for generating an external command signal to an external recorder in response to a playback start signal or a lead-in or lead-out track detection signal obtained from a signal reading head, and also an external command signal output terminal for supplying the external command signal therefrom. Synchronized operation control is executed in such a manner that, upon completion of playing back one side of a disc, the recording operation of the external recorder is temporarily brought to a halt by a pause signal at the instant of detection of the lead-out track by the signal reading head, and after proceeding to playback of the other side of the disc, the recording operation is resumed at the instant of detection of the lead-in track on the other side of the disc by the signal reading head.

Abstract: When recording n pieces of music on a magnetic record carrier (3), two groups of pieces of music are formed. A first group of g.sub.1 pieces of music is recorded on the A-side of the record carrier and a second group of g.sub.2 (=n-g.sub.1) pieces of music is recorded on the B-side. The groups are selected such that the total time duration of each of the two groups T.sub.tot (g.sub.1), T.sub.tot (g.sub.2) is nearest to half the total time duration of all the n pieces of music (T.sub.tot /2).

Abstract: A triple deck recording and reproducing system with three video tape decks are integrated, and mounted within a single video tape recorder, when performing recording and reproducing, a main picture is displayed by selecting one among VHS or 8 mm or 4 mm of the video decks and another picture is displayed in the form of a PIP (Picture-In-Picture). Thus, the selected main and auxiliary pictures can be mixed with another deck for dubbing recording, and then, a user can display all the signals reproduced by three decks on the PIP, so as to compare the pictures with each other and display a plurality of the different pictures as a particular effect.

Abstract: Apparatus for identifying edit points in a digital audio signal recorded on a record medium in association with a video signal and a time code signal, comprises a random access memory (3) for storing a reproduced segment of the digital audio signal and the associated time code signal, a monitor (2) for displaying the image corresponding to a reproduced portion of the associated video signal, a digital-to-analog converter for converting that part of the segment of the digital audio signal corresponding to the displayed image and read from the random access memory (3) by reference to the stored time code for reproduction by a loudspeaker (4), a video screen (6) for displaying the waveform of the analog-converted audio signal with a cursor (8) which relates the waveform to the image displayed on the monitor (2), and a register (7) for recording the time code read from the random access memory (3) and corresponding to a required audio edit point at which the cursor is positioned.

Abstract: A PCM signal editing apparatus with functions of storing in memories the edit-point proximate sample data of a first PCM audio signal reproduced from a first recording medium and that of a second PCM audio signal reproduced from a second recording medium, then reading out such sample data of the PCM audio signals at a desired speed from the memories respectively in a manner to attain a coincidence of the edit points, and cross-fading the signals at the edit-in point or edit-out point in a cross-fade time conforming with the read-out speed, thereby performing a short-time insert editing operation with high efficiency and sufficient certainty. Furthermore, the apparatus is so contrived that the editing conditions proximate to the edit points of the PCM audio signals can be aurally perceived with accuracy, and the access states of the memories are displayed by bar graphs to consequently render the editing state visually recognizable.

Abstract: A portable audio apparatus allows a user to sing along with the recorded song, the user's voice and recorded song being outputted through a speaker. The apparatus permits the recorded lyrics or recorded tune of the song to be substantially eliminated prior to being reproduced by the speaker. The apparatus can operate in a fast forward or reverse mode and will stop between adjacent songs. A power savings circuit interrupts the supply of power to a motor to stop the latter from continuing to operate on a fast forward or reverse mode.

Abstract: A color noise killing circuit for video tape duplicating apparatus which is capable of eliminating the color noise during a fine copy mode comprises mode setting circuit, color signal detecting circuit, selecting circuit and transmission, controlling circuit so that the color noise killing circuit detects via color signal detecting circuit a color signal of the play back system during the fine copy mode and thereby the transmission controlling circuit controls the selecting circuit to selectively supply signals corresponding to the respective modes to the recorder system. Consequently, by supplying the recorder with only luminance signals when black and white image signals are reproduced during the fine copy mode, the circuit achieves an improvement of picture quality duplicated.

Abstract: A method and apparatus for editing video cassettes. The video cassette editor can be used to move a video cassette to a particular position on the tape relative to a reference point as a function of tape length expressed in units of time. The video tape editor is also capable of calculating recording speed switchover points for maximizing the recording time in standard play mode and thereby increasing the quality of the video image for the maximum amount of time.

Abstract: A hardware and software system and method for a personal computer such as the Macintosh allows recording, editing, and playback of sound. The system includes a sound editor which displays sound waveforms, and permits the user to mix together several simultaneously displayed waveforms, and to change the pitch and amplitude of one part of each waveform by means of a novel screen display.

Abstract: An audio visual apparatus of the invention has a standard cassette tape (T-2) having record-prevention tabs and an endless video cassette tape (T-1). When the cassettes are installed in two VCR units, respectively and a power switch is turned on, the T-1 and T-2 tapes are set to a recording mode and start recording a TV program. When a remote control button is pressed once, the T-2 tape continues recording while the T-1 tape is set to a playback mode in which video information from a TV is allowed to be monitored endlessly. When the remote control button is pressed once again, the T-1 tape is brought back to the recording mode. A series of the actions can be repeated. On the other hand, when an already recorded cassette tape with tape ends not having record-prevention tabs is installed as a T-2 tape, the T-2 tape is set to a playback mode while a T-1 tape is set to a recording mode, simultaneously while a power switch is turned on so that the T-1 tape records the video information of the T-2 tape.

Abstract: An original film or video sound track and a translation of this sound track into another language are separately recorded and a predetermined positioning timewise relative to the original sound track introduced to the output of the translation to make for best clarity and understanding of the two audio outputs when they are superimposed. The audio levels of the original sound track output and the translation are then set to predesired levels and combined with each other. The combined signal is then fed to an audio compressor which is triggered by an attack signal generated by a second recording of the translation which is advanced in time by 0.5-2.0 seconds relative to the first translation recording. The combined original and translation audio signal is thus ramped down to a lower level a predetermined time period before and during the time the translation audio is present, the sound track level being restored to its original audio level a predetermined time period after the translation audio has stopped.

Abstract: Information signals including single frame video signals are recorded on selected areas of a recording medium, with accompany recorded code signals associated with each frame. Address codes are employed to locate and read the information signals stored on the recording medium. The information read from the recording medium is processed, stored in a display buffer, and displayed on a viewing screen.

Abstract: In one embodiment of the invention, multiple selections recorded on CD's are re-recorded on a video medium or on a digital audio medium together with the recording of markers. The markers are recorded automatically, typically in response to CD track changes and disc changes, to locate the re-recorded selections, during playback. The method and apparatus of the invention can employ PCM recording and can be practiced with consumer electronic equipment.

Abstract: An apparatus for editing a digital audio signal includes parallel stationary transducer heads for reproducing the digital audio signal from a magnetic tape the same on the tape after it is modified by a mixing circuit. A digital-to-analogue converter and an analogue-to-digital converter are connected to input and output terminals of the mixing circuit respectively so that a reproduced digital audio signal can be modified in an analogue manner and then digitized for recording. A delay circuit having a delay time corresponding to a total delay time of the converters is further provided so that the reproduced digital audio signal and the modified digital audio signal are received without relative time delay with respect to each other by a cross-fader circuit for recording.

Abstract: This invention relates to a time code recording and reproducing apparatus for recording and reproducing time codes corresponding to a digital signal. Time code converting means (100) converts a first time code into a second time code. A frame phase which occurs during the recording of input information is determined by frame timing generating means. A phase difference between a frame of the second time code and a recording frame is detected by phase difference detecting means (103). Phase difference correcting means (104) outputs a third time code on the basis of the detected phase difference. The input information is recorded together with the third time code. Thereby, the recording can be performed while the relation of the correspondence between the input information and the time code is held. In addition, the reproduction can be performed.

Abstract: A writing method suitable for practice with an apparatus having a rotary head assembly for the storage and retrieval of digital data on and from magnetic tape in cassette form or the like. The rotary head assembly is of the type having a rotary drum to which there are mounted a pair of magnetic read/write heads and a pair of magnetic monitor heads. The read/write heads alternately and overlappingly scan the magnetic tape for creating a series of slanting data tracks thereon. The monitor heads are spaced from the read/write heads not only circumferentially but also axially of the rotary drum for monitoring the data tracks being formed by the read/write heads after they have been overlapped by the subsequently formed tracks.

Abstract: A servo circuit for a capstan motor has an element for recording a position detecting signal on a medium transported by the capstan motor, a magnetic head for reproducing the position detecting signal, a position detecting circuit for detecting a position error signal, a pulse generator for a pulse signal, a velocity detecting circuit for a velocity error signal, a phase comparator for comparing the phase of a clock signal and pulse signal and for outputting a phase error signal, a switch for selectively outputting the position error signal or the phase error signal, and a velocity control element for controlling the capstan motor by a velocity control signal.

Abstract: A moving fader system, primarily for the processing and combining of audio signals, includes a dedicated preprocessor to implement the execution of repetious input instructions. Other features contributing to the operation of the system include (1) "Look-up Tables" included in the preprocessor for conversion purposes, (2) a fiberoptic link for transmission of digital signals between the preprocessor and the servo circuits associated with each fader assembly, and (3) circuitry for combining the outputs of a position digital-to-analog (D/A) converter, an offset correction D/A converter and a gain correction D/A converter, to provide accurate analog servo signals to each fader assembly.

Abstract: A video recorder device for electronic cutting of video and FM-audio signals in oblique tracks of a magnetic tape wherein the audio signal is also recorded in a longitudinal track at the tape edge, whereupon erasing the original video signal in the oblique track also results in the undesired erasing of the original FM-audio signal also in the oblique track which is replaced by the audio signal recorded in the longitudinal track being recorded in the oblique track.