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Class 386/104 - Digital audio signal


Subclass of Class 386 - Television signal processing for dynamic recording or reproducing
Definition: Subject matter wherein the audio signal is provided in
No. of patents: 371
Last issue date: 11/16/2010


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NumberTitleIssue Date
4939595Digital audio tape record/play-back system for recording/playing back character data together with digital audio data
In this invention, pack data of a character mode including a character code is generated by a sub-code processor. The pack data is continuously recorded on a magnetic tape for a plurality of frames by rotary heads. When the pack data of the character mode...
07/03/1990
4935824Information recording apparatus
In an apparatus for recording and/or reproducing an information signal in successive slant tracks on a record tape; an information signal is recorded by a rotary head in only a part of a respective slant track scanned by the head on the tape, coded index ...
06/19/1990
4931878Recording apparatus which is capable of recording two kinds of signals by operation of a single member
A recording apparatus which records speech and image signals on a disc and includes a memory for storing the speech signal temporarily therein. It updates the contents of the memory in accordance with a triggering signal to record the speech signal and re...
06/05/1990
4928185Rotary head type recording/reproducing method and apparatus for recording and reproducing a digital audio signal
A rotary-head type magnetic tape recorder for recording a video signal and an audio signal on a magnetic tape by means of a rotary head controlled on the basis of the video signal. Difference is determined between a rate at which the digital audio signal ...
05/22/1990
4896224Video and audio signal recording apparatus providing for recordation of control data with audio signals
An apparatus for recording an analog video signal in a longitudinally extending first area of a tape-shaped recording medium and for recording a digital audio signal in a second area of the medium extending in parallel to the first area is arranged: to br...
01/23/1990
4862296PCM signal reproducing apparatus with adjustable phase lock loop circuitry
A clock regeneration circuit for use in data reproducing apparatus which reproduces and demodulates digital data that has been recorded on a magnetic medium in accordance with different types of modulation having different recording densities, such as bip...
08/29/1989
4855847Video disk reproducing device having improved motor speed control
A data reproducing device with which, in reproducing a digitized audio signal, the speed of movement of a data detecting point of a pickup relative to the recording medium is controlled with high accuracy. A digitally modulated audio signal recorded in th...
08/08/1989
4851909Method and apparatus for maintaining audio/ video synchronism in a television signal read-out from a digital buffer memory by a reference signal
Both the analog and the video component of a television signal are converted to digital form, the audio component being converted at a much lower sample rate with a word length which is an integral multiple of the video word length. The digital audio comp...
07/25/1989
4847698Interactive television system for providing full motion synched compatible audio/visual displays
An interactive television system (10, 10a) for providing full motion synched compatible audio visual displays based on dynamic user selection (26) of a plurality of syllable synched compatible audio choices for a common full motion video frame presentatio...
07/11/1989
4840602Talking doll responsive to external signal
A doll cooperates with a remote signal source which provides a narration with which the doll interacts, and it has a vocabulary stored in digital data in a memory which may be accessed to cause a speech synthesizer in the doll to simulate speech. The doll...
06/20/1989
4833549Digital audio tape record/play-back system for recording/playing back character data together with digital audio data
In this invention, pack data of a character mode including a character code is generated by a sub-code processor. The pack data is continuously recorded on a magnetic tape for a plurality of frames by rotary heads. When the pack data of the character mode...
05/23/1989
4823207PCM recording and playback with variable read and write speeds
A method and an apparatus for recording and reproducing a PCM audio signal either alone or together with a video signal, using a rotary-head type scanner. An analog audio signal is converted into a digital signal having a predetermined number of quantizat...
04/18/1989
4819097Audio signal recording/reproducing system for use in time-lapse video tape recorder
An audio signal recording/reproducing system is used in a time-lapse video tape recording device for time-lapse recording a video signal on a magnetic tape at predetermined time intervals. The audio signal recording/reproducing system comprises a memory w...
04/04/1989
4819088Magnetic recording and reproducing system
A magnetic recording and reproducing system encodes a digitized audio signal into first and second blocks which are constituted by sample of the audio signal within one field or one frame of a video signal in a sequence dependent on a field frequency of t...
04/04/1989
4816926Rotary head digital audio tape recorder with multiple recording modes
This invention relates to an information signal recording apparatus which can be used also as an audio tape recorder only. When it is used only as the audio tape recorder, an audio signal is sampled with a frequency m times the sampling frequency of an au...
03/28/1989
4814902Apparatus for recording and/or reproducing with video and multiple audio rotary heads
An apparatus for recording and/or reproducing a signal on a tape recording medium with a plurality of rotary recording and/or reproducing heads includes a first input and/or output terminal for receiving and/or deriving a video signal, a second input and/...
03/21/1989
4811121Magnetic recording and reproducing system using preceding and lagging groups of rotary heads to permit coincident timing for reproduced video and audio signals
The present invention relates to a magnetic recording and reproducing system of a rotary head type in which a video signal of a predetermined unit and audio signals corresponding to the video signal of the predetermined unit are sequentially recorded on a...
03/07/1989
4807060Milti-channel recording apparatus for a plurality of programs
A multi-channel recording apparatus capable of recording information signals in a plurality of areas on a recording medium, having a function to record, in connection with a first instruction information for change-over of the recording areas, a second in...
02/21/1989
4807055Multi-speed magnetic recording playback
A magnetic recording playback system compatible with both an 8 mm video format and a rotary head digital audio tape form. A rotary head records tilted tracks on the tape. Each track is divided into four areas which are recorded with different types of aud...
02/21/1989
4787063Acquisition and transmission system for a recorder and a computer center
The invention relates to a system transmitting special signals and data between a computer center and an appliance which is able to receive and record independently video and/or audio programs produced by television or radio companies. The system has two ...
11/22/1988
4772959Digital signal recording and reproducing apparatus
A novel digital signal recording and reproducing apparatus is disclosed in which an audio digital signal is recorded and reproduced alone or together with a video signal in a video tape recorder. If the sampling frequency of the audio signal is not an int...
09/20/1988
4768106Apparatus for recording video and PCM audio signals with insert editing using axially displaced heads
An apparatus for recording video and digital audio signals in separate sections of slant tracks on a magnetic tape in the 8 mm format includes two main rotary magnetic heads for recording and reproducing both the video and digital audio signals during nor...
08/30/1988
4768108Magnetic recording and reproducing system
A magnetic recording and reproducing system comprises a separating circuit for separating samples constituting a digital audio signal into odd and even numbered samples within each field of an input video signal by assigning sequential numbers to the samp...
08/30/1988
4758904Apparatus for recording and/or reproducing an additional information signal
In a helical scan apparatus having a rotary head or heads for recording and/or reproducing video and audio signals in oblique tracks on a magnetic tape with the recorded audio signals being recorded in overscan areas of the oblique tracks and with the pit...
07/19/1988
4758901Continuous audio recording in a skip-field video recorder
In a skip-field video recorder, the audio signal of every field is continuously recorded. The audio signal of each skipped video field is stored in an audio field store memory and then unloaded during the recording of the next (unskipped) video field. The...
07/19/1988
4727433Video/audio coded data recovery from a record medium
Method and apparatus for playing back a plurality of digitally encoded audio messages along with associated video data. The audio messages are combined along with a plurality of corresponding audio message start address signals when recorded on a recordin...
02/23/1988
4706134Playback unit for still pictures with sound
A playback unit for still pictures with sound for transmission of composite data, composed of audio and digital data, to an external device. The composite data is stored and then separated into audio and digital data. The audio data is transmitted with pr...
11/10/1987
4703368Multiple variable rate audio message recording and playback
Method and apparatus for recording and playing back a plurality of digitally encoded audio messages along with associated video data. The messages are combined along with a plurality of corresponding audio message initial data address signals and recorded...
10/27/1987
4660103Recording and reproducing digital audio signals formed into groups of varying lengths
A method of recording a digital audio signal in association with a digital video signal which is to be recorded in oblique tracks on a magnetic tape using a rotary head the rotational frequency of which is locked to the digital video signal, comprises the...
04/21/1987
4638377Selectable video/audio coded data recovery from a record medium
Method and apparatus for playing back a plurality of digitally encoded audio messages along with associated video data. The audio messages are combined along with a plurality of corresponding audio message start address signals when recorded on a recordin...
01/20/1987
4625080Remote video recorder programming apparatus operating over telephone lines
Apparatus for remote programming of an electronic device such as a video cassette recorder. A hand held portable programming unit stores intructions for the device as those instructions are entered through a key pad. These instructions are encoded into a ...
11/25/1986
4618890Digital audio synchronizing system with mute time switching function
A digital audio synchronizing system resynchronizes the audio signal of a video signal by storing the audio signal in a memory and reading it out from the memory after a time period which is related to the time by which the video signal is delayed as a re...
10/21/1986
4583132Recording/reproducing apparatus for selectively processing monaural, stereo and bilingual signals
A system for use in recording/reproducing video and audio signals, where the audio signals to be recorded can consist of various kinds of signals such as stereo signals, bilingual signals, or monaural signals, in which the kind of audio signal that is pre...
04/15/1986
4549229Method and apparatus for compensating for tape jitter during recording and reproducing of a video signal and PCM audio signal
Apparatus for recording and reproducing an information signal comprised of a video signal and an audio signal in a plurality of successive tracks on a magnetic tape, includes a recording section comprised of a PCM processor which converts the audio signal...
10/22/1985
4547816Method of recording digital audio and video signals in the same track
The magnitude of time-compression of audio signals recorded following the recording of video signals in the end portion of the same oblique track on magnetic tape is so related to the bit rate of recording of the video signals, in the recording of digital...
10/15/1985
4542418Method and apparatus for reproducing an information signal comprised of a video signal and audio signal
A reproducing section of a helical scan VTR for reproducing a color television signal recorded in a plurality of successive parallel tracks on a magnetic tape and comprised of a video signal and at least one of a frequency-modulated audio signal and the c...
09/17/1985
4542419Method and apparatus for recording and reproducing an information signal comprising a video signal and audio signal
Apparatus for recording and reproducing an information signal comprising at least an analog audio signal in a plurality of successive tracks on a magnetic tape includes a PCM processing circuit for converting an analog audio signal into a PCM audio signal...
09/17/1985
4535366Universal video data playback
Method and apparatus for the recording onto a recording medium and playback of digital data, such as digitally encoded audio data, such that the recording medium is playable on either of two different commercial television format video type players. For e...
08/13/1985
4531161Sound recording system for electronic still camera
Sound associated with a scene which a still camera shot is picked up over a desired period of time starting from the instant which is a given time before the instant of depression of a release button of the camera. A shift register serves as a delay eleme...
07/23/1985
4491880Magnetic recording and/or reproducing apparatus
In a magnetic recording and reproducing apparatus of 2-head helical scan type, an overlapping portion is formed at one end of each video track on a magnetic tape, and a PCM audio signal is recorded on this overlapping portion. Video/audio selective switch...
01/01/1985
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