Video transducing apparatus and method for editing

• US 3,925,815 A
• Filed: 01/14/1974
• Issued: 12/09/1975
• Est. Priority Date: 06/14/1955
• Status: Expired due to Term

• Current Assignee: Jerome H. Lemelson
• Original Assignee: Jerome H. Lemelson
• Inventors: Lemelson, Jerome H.
• Primary Examiner(s): Moffitt, James W.
• Assistant Examiner(s): Faber, Alan
• Application Number:
  US05/432,906
• Time in Patent Office: 694 Days
• Field of Search: 360/14,66
• US Class Current: 386/287
• CPC Class Codes: B07C 3/18 Devices or arrangements for indicating destination, e.g. by code marks applying data to information carriers G06K1/12
• CPC Class Codes: B41B 19/14 and presenting a text of more than one line
• CPC Class Codes: B41B 27/00 Control, indicating, or safety devices or systems for composing machines of various kinds or types computers in general G06F
• CPC Class Codes: G06F 3/153 using cathode-ray tubes
• CPC Class Codes: G06K 17/00 Methods or arrangements for effecting co-operative working between equipments covered by two or more of main groups G06K1/00 - G06K15/00, e.g. automatic card files incorporating conveying and reading operations
• CPC Class Codes: G06K 7/084 sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
• CPC Class Codes: G07C 9/253 visually
• CPC Class Codes: G07C 9/257 electronically G07C9/26 takes precedence
• CPC Class Codes: G08B 13/194 using image scanning and comparing systems
• CPC Class Codes: G09G 1/26 using storage tubes tubes therefor H01J31/58
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G11B 15/005 Programmed access in sequence to indexed parts of tracks of operating tapes, by driving or guiding the tape access by driving of both record carrier and head G11B15/1816; see prov. also G11B15/602
• CPC Class Codes: G11B 15/6875 wherein the recorder or player is moved towards a selected cassette in the magazine
• CPC Class Codes: G11B 15/6895 Automatic tape changing arrangements
• CPC Class Codes: G11B 2220/41 Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/022 Electronic editing of analogue information signals, e.g. audio or video signals
• CPC Class Codes: G11B 27/029 Insert-editing
• CPC Class Codes: G11B 27/322 used signal is digitally coded
• CPC Class Codes: G11B 27/326 used signal is a video-frame or a video-field (P.I.P.)
• CPC Class Codes: H04N 1/387 : Composing, repositioning or otherwise geometrically modifying originals
• CPC Class Codes: H04N 5/7826 : involving helical scanning of the magnetic tape

Abstract

An apparatus and method are provided for recording information such as full-frame television signals on a magnetic tape and selectively reproducing same from the tape to provide one or more effects such as the editing of the tape or the selective playback of selected frames. Cueing or marker signals are generated and recorded along selected portions of the magnetic record member and are employed, when reproduced therefrom, to effect control of the reproduction of the associated video picture signals for providing still images on a viewing screen or a series of images thereon.

Claims

1. A method of recording and reproducing video information relative to an eraseable record member by selectively erasing and replacing video picture signals which have been previously recorded with respective newly generated video signals recorded along the recording areAs of the record member from which said previously recorded signals have been erased, comprising:

generating a plurality of full-frame video picture signals and recording said full-frame video picture signals on respective frame recording areas of an eraseable record member, thereafter replacing a selected portion of the recorded fullframe video signals with respective new full-frame video picture signal recordings by;

scanning said record member by relatively moving it and a plurality of transducers including a recording transducer which is operable for recording video signals and an erasing transducer which is normally deactivated and may be selectively operable for erasing selected of the recorded video signals, generating a pulse signal each time a full-frame video picture signal recording on said record member is scanned by said recording transducer whereby said pulse signals define respective frame position indicating marker pulses, initiating a recording control function by passing the marker pulses so generated to a counter control means to cause the uncounting thereof upon receipt by said counter control means of a predetermined number of said marker pulse signals, generating a control signal when said counter control means uncounts and applying said control signal to activate and energize said erasing transducer to initiate erasure of a selected portion of the recorded video information, generating new full-frame video picture signal information, and also applying said control signal to control the transmission of the newly generated full-frame video picture signal information to said recording transducer so as to initiate the recording of new video information on that portion of the eraseable record member along which erasure was effected by said erasing transducer.

2. A method in accordance with claim 1 wherein said eraseable record member is a magnetic tape having full-frame video picture signals recorded in tandem thereon.

3. A method in accordance with claim 2 wherein said marker pulse signals are generated by scanning marker pulse recordings provided longitudinally along said tape at predetermined locations with respect to the video signals recorded thereon.

4. A method in accordance with claim 1 wherein said fullframe video picture signals are recorded in tandem on said eraseable record member and are generated by a television camera.

5. A method in accordance with claim 4 wherein said originally generated full-frame picture signals comprise a sequence of motion picture signals and said new full-frame video picture signals also comprise a sequence of motion picture signals generated by a television camera.

6. A method in accordance with claim 5 wherein said new full-frame video picture signals are reproduced and generated in such a manner as to provide a continuous motion picture recording with the full-frame video picture signals originally recorded on said record member, which motion picture recording appears to an observer, when all of the signals are reproduced from said record member and are presented to modulate a television receiver display means such as a cathode ray tube so as to provide thereon a continuous and substantially uninterrupted viewable motion picture phenomenon.

7. A method in accordance with claim 5 wherein said newly generated full-frame video picture signals are of such characteristics as to provide a continuous motion picture phenomenon with said originally generated full-frame video picture signals when recorded on the erased portion of said record member and reproduced in sequence with the recordings of said originally generated full-frame video picture signals which precede the recordings of said newly generated full-frame video picture signals and passed to a television receiver display means such as a cathode ray tube and applied to modulate the write-beam thereof.

8. A method of recording and reproducing video picture signal information relative to an Eraseable record member by selectively erasing and replacing the video signals recorded on the record member with respective newly generated video signals recorded along the erased length of the record member comprising:

first generating a plurality of first full-frame video picture signals and recording said video picture signals in a tandem array along respective selected portions of an eraseable record member, recording a plurality of marker signals along said record member including the recording of at least one marker signal at a selected location of each of said selected portions of said record member which contains a respective full-frame video signal recorded thereon whereby each of said marker signal recordings is indicative of the location of a respective of said full-frame video picture signal recordings, relatively moving said eraseable record member and a plurality of transducers including a recording transducer for video signals and an erasing transducer which is operable for selectively erasing recorded video signals;

reproducing said marker signals as said record member and said transducers are relatively moved and generating electrical pulse signals thereof, applying said marker pulse signals as feedback signals to activate a control means which is operable for controlling the energization of an erasing transducer in a manner to cause said erasing transducer to erase a selected portion of the full-frame video picture information from said record member, operating a television camera to generate new full-frame video picture information and employing said control means when activated by said marker signals to selectively connect the output of said television camera and said recording transducer and to control the recording of at least one full-frame video picture signal generated by said camera along that portion of said record member which was erased by said erasing transducer.

9. A method in accordance with claim 8 which includes controlling the operation of said television camera to cause its read-beam to initiate a sweep of its scanning field and to initiate the generation of a full-frame video picture signal when the portion of said record member which has been erased by said erasing transducer first comes into alignment with said recording transducer and immediately passing the output of said television camera, generated as the read-beam thereof operates in scanning the camera field, to said recording transducer whereby at least one full-frame video picture signal generated by the camera will be recorded along the erased portion of said record member.

10. A method in accordance with claim 9 wherein the video signals recorded on said record member are television motion picture signals and are replaced by television motion picture signals generated by said television camera.