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4477844 |
Apparatus for recording a digital audio signal in a track with a video signal
Apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of tracks extending obliquely on a magnetic tape includes a sample and...
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4473850 |
Method and apparatus for recording digitally coded television signals
Digitalized audio signals of a plurality of channels are stored blockwise in each channel and then recorded blockwise in repeating channel sequence in similarly situated portions of successive...
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4467373 |
Storage and retrieval of digital data on video tape recorders
A digital data manipulation system for compensating for drop outs on a video recording medium. Data received by an assembler is assigned to a predetermined non-standard format prior to recording....
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4466089 |
Information signal reproducing apparatus
An information signal reproducing apparatus for reproducing from a disc having recorded thereon a pulse code modulated (PCM) signal which is modulated in a run length limited code is disclosed, in...
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4463387 |
Digital video data recording apparatus
A digitized video data recording and/or reproducing system comprises a plurality of rotary magnetic heads are disposed on a rotary tape guide drum on the periphery of which a magnetic tape is...
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4462050 |
Hybrid digital-analog signal recording-playback system
A hybrid audio frequency recorder employing digital signal processing techniques in the recording and playback sections combined with analog recording on the magnetic recording medium. For...
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4455635 |
Coding system for recorded digital audio
A system for recording and recovering analog signal in digital format utilizes a substantially video field format without the vertical blanking intervals thereby eliminating the need to time...
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4451858 |
Analog recording system
An arrangement for recording an analog signal onto magnetic tape in which the analog signal modulates a square wave bias field by moving the negative-going transition of the square wave so that the...
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4446490 |
PCM Signal processing circuit
A PCM signal processor having a signal input terminal which receives a PCM data signal, a memory for storing the PCM data signal, a standardized signal input terminal for providing a standardized...
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4438464 |
Method for editing of PCM signal and apparatus thereof
A method for editing a PCM signal in which a first redundant code series is added to a PCM word series in a first arranging state (alignment) and a second redundant code series is added to the PCM...
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4433416 |
PCM Signal processor
A pulse code modulation signal processor extracts signal processor control words from a serial pulse code modulation data stream also containing error detection and correction codes. The PCM signal...
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4423444 |
Method for recording a magnetic audio tape and apparatus for generating a television signal from the recorded magnetic audio tape
An apparatus is disclosed for generating a television signal including a discrete electronic audio signal in synchronization with a discrete electronic video signal. A magnetic audio tape having a...
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4423441 |
PCM Record reproducer
A PCM record reproducer comprises a coder circuit for forming PCM signals by adding error detection codes to data signals in a predetermined pattern; a splice detection circuit for determining a...
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4410917 |
Method of and apparatus for recording information from a master medium onto a slave medium employing digital techniques
A method of and apparatus for recording information from a master medium onto a slave medium. Analog information on a master medium is reproduced and converted into digital information. The digital...
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4404602 |
PCM Signal recording system
A PCM (pulse code modulation) signal recording system including a first signal processor for processing a recording signal into a predetermined PCM signal, a second signal processor for processing...
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4403263 |
System for processing audio PCM digital signals
A processing system for reproduced audio digital signals used in an audio PCM (pulse code modulation) recording/reproducing system using a recording/reproducing apparatus such as a video tape...
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4403261 |
Method and apparatus for editing digital signal
Electronic editing of a recording digital signal is carried out such that any errors created by the editing process are correctable. The digital signal is given protection from errors, for example...
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4395738 |
Helical scan tape recording and/or replay apparatus
A tape has a format of the type wherein digital video information is recorded with each frame or field disposed on a set of multiple tracks and with at least one track being intended for replay...
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4393371 |
Analogue to digital signal conversion and storage system
In an analogue to digital converter, the analogue signal applied thereto is sampled at successive time intervals and at each sample a digital signal is produced and the time interval between...
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4393418 |
Time base error correction system
A system for recording and reproducing a video signal, includes a converter for converting an incoming video signal into a number of signal channels, and a corresponding number of magnetic heads...
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4392159 |
Method and apparatus for digital video signal processing
A method and apparatus is disclosed for recording and reproducing color television signals on a magnetic media such as magnetic tape, wherein the signals recorded on and reproduced from the...
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4390907 |
Magnetic recording system
A carrier wave at a frequency higher than the frequency of an input signal to be recorded is pulse width modulated with the input signal at the pulse width modulator, and the modulated signal thus...
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4389681 |
Method and apparatus for recording digitized information on a record medium
At least one channel of digitized information is recorded in a selected number of data tracks by a record medium. The digitized information is encoded, modulated and then recorded in a...
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4387364 |
Method and apparatus for reducing DC components in a digital information signal
A method of reducing DC components in a digital information signal comprised of a plurality of 8-bit data words by converting each of the 8-bit data words to a 10-bit data word, comprises the steps...
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4382299 |
Disc record system employing signal redundancy
A high performance disc record recording system wherein a digital manifestation of the signal to be recorded modulates a first carrier frequency and a temporally displaced analog manifestation of...
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4381525 |
Synchronously operatable PCM recording processor
A PCM recording processor which is synchronously operatable is disclosed. Two kinds of clock signals and two kinds of synchronizing signals enable two PCM recording processors to operate so as to...
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4376268 |
Phase locked loop having automatic-input tuning and phase control circuits
An automatic phase-controlled oscillator circuit for producing an output clocking signal whose phase and frequency vary with those of an input information signal applied thereto comprises an input...
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4368988 |
Electronic timepiece having recording function
An electronic timepiece has a plurality of alarm time memory circuits in a semiconductor memory means for memorizing different alarm times and a memory for memorizing voice data of messages telling...
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4364096 |
Apparatus for reproducing PCM magnetic recording tape
An apparatus for reproducing voice signals from a PCM magnetic recording tape which is equipped with a discontinue waveform calibrator which comprises a control signal generator for detecting an...
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4363050 |
Digitized audio record and playback system
A system for digitally processing an analog signal, such as an audio signal, for recording and playback. The system comprises means responsive to the analog signal to produce sequences of binary...
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4363049 |
Method and apparatus for editing digital signals
In a method and apparatus for editing digital signals, such as PCM-encoded audio signals, which are helically recorded on a magnetic tape in a Video Tape Recorder, first and second digital signals...
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4360824 |
Systems for recording both information and pilot signals directly on recording medium
An information signal recording system comprises a circuit for generating pilot signals for tracking control, a circuit for generating a rectangular waveform signal of a specific frequency existing...
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4356517 |
PCM Audio reproducing system
Upon reproducing a PCM audio signal, the disclosed weighting circuit gradually changes the weight or value of signal bits constituting the PCM audio signal in accordance with a command signal so as...
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4353129 |
Digital data transmission system
A digital data transmission system comprises a transmitter and a receiver, said transmitter comprising storage means for temporarily storing a data bit string forming a coded digital video signal,...
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4348699 |
Apparatus for recording and/or reproducing digital signal
An apparatus for recording and/or reproducing a serial digitized analog signal controls the transport speed of a recording medium according to the sampling rate employed in digitizing the analog...
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4334247 |
Apparatus useful for converting asynchronous video information to synchronous video information
A pair of field store devices which are slaved to a stable sync signal are employed to record, along with such sync signal, video information on a recording medium. During periods of asynchronism...
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4333160 |
Memory control system
A memory control system comprises a first memory supplied with an incoming modulated digital signal which is formed by subjecting an analog signal to digital signal processing of discontinuous...
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4329708 |
Digital signal processing apparatus
In a digital video signal processing apparatus having error correcting and concealing capabilities, a video signal is converted to a digital signal and transmitted or recorded with error detecting...
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4328580 |
Apparatus and an improved method for processing of digital information
The present invention involves an apparatus and method for processing of digital information that includes duplication of information from each channel of a multi-channel recorder on main and...
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4327382 |
Method and apparatus for editing digital signals recorded on a record medium
Digital signals, such as PCM-encoded audio signals, are reproduced, delayed, and then mixed with edit digital signals which are supplied from a suitable source. Mixing is carried out by gradually...
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4318137 |
Real time digital recording system for thermovision data
Direct, real time digital data recording of thermal imagery is realized by the utilization of a computer that receives and stores bursts of high speed data from the digitized analog output of an...
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4318188 |
Semiconductor device for the reproduction of acoustic signals
A microphone, for receiving an acoustic signal, is connected to a transducer which changes the analog signal delivered by the microphone into a sufficiently dense series of storable pulses in such...
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4309726 |
Muting circuit in a PCM recording and reproducing apparatus
Digital data units representative of analog audio signal are constructed into a data unit sequence with an error detection code being added to each of the data units for detecting coding errors...
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4307395 |
Method of and apparatus for recording, storing and replaying dynamometer data from a liquid well pump
A method and apparatus for accepting analog voltage signals from a reciprocating liquid well pump and digitizing the signals and storing the signals for playback at a later time. A receiving...
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4303988 |
Random accessible signal filing system
The present invention is a random accessible signal filing system containing magnetic discs, at least two buffer memories and a circuit for controlling the buffer memories in such a way that the...
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4295154 |
Digital video and audio file system
A digital video and audio file system is provided for use in systems such as a center-to-end video communication system. In the file system, video information, such as a color television video...
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4286294 |
Recording/reproducing system
In the case that an analog signal is recorded or reproduced by using a sensor and recording medium relatively moving against the sensor, a sampling signal is generated which is adapted to have a...
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4282551 |
PCM Recording and reproducing apparatus
When error detection codes are added to a sampled signal word which is a digital version of audio information and a control signal which is a digital version of system control information to...
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4281355 |
Digital audio signal recorder
A digital audio signal recorder for obtaining coded signals having a first check code generator for generating the sum of module 2 for each bit of pieces of predetermined sampled data; and further...
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4275416 |
PCM Detector
A current source supplies current to an integrator representative of a difference between the instantaneous and average values of a video signal having a PCM data component time division...
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