Editing apparatus for separately recording a plurality of information signals along with respective time code signals in slant tracks on a magnetic tape

• US 4,805,042 A
• Filed: 11/09/1987
• Issued: 02/14/1989
• Est. Priority Date: 11/13/1986
• Status: Expired due to Term

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Nishikata, Yutaka
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/118,318
• Time in Patent Office: 463 Days
• Field of Search: 360/14.3, 360/10.2, 360/26, 360/27, 360/14.1, 360/33.1, 360/72.2, 360/69, 360/70, 360/49, 360/13, 360/14.2, 358/335-337, 358/342, 358/906
• US Class Current: 386/287
• CPC Class Codes: G11B 20/10527 Audio or video recording; Data buffering arrangements G11B20/12 - G11B20/18 take precedence
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/032 on tapes G11B27/036, G11B27/038 take precedence
• CPC Class Codes: G11B 27/036 Insert-editing
• CPC Class Codes: G11B 27/3027 used signal is digitally coded
• CPC Class Codes: G11B 27/3036 Time code signal

Abstract

In a recording and reproducing or editing apparatus for recording, in successive slant tracks on a magnetic tape, at least a first information signal and, thereafter, a second information signal along with respective time code signals, the time code signal recorded with the first information signal is reproduced therewith prior to the commencement of the recording of the second information signal, and the time code signal to be recorded with the second information signal is synchronized with the reproduced time code signal so that, upon the recording of the second information signal after the first information signal, the respective recorded time code signals represent a continuous time code.

Claims

1. A recording and reproducing apparatus for recording, in successive slant tracks on a magnetic tape, at least a first information signal and, thereafter, a second information signal along with respective time code signals which are to represent a continuous time code, comprising:

tape drive means for driving the magnetic tape in forward and reverse directions;

rotary magnetic transducer means scanning said successive slant tracks on the magnetic tape when the latter is driven in said forward direction and having recording and reproducing modes for selectively recording and reproducing information signals and respective time code signals in said slant tracks being scanned;

control means operative, after the recording of said first information signal and the respective time code signal on said tape, to cause said tape drive means to drive the tape in said reverse direction a predetermined distance and then to drive the tape in said forward direction while said transducing means are in said reproducing mode for reproducing said time code signal recorded with said first information signal;

time code generating means for generating a time code signal to be recorded with said second information signal; and

means for synchronizing said time code signal generated by said time code generating means with said time code signal reproduced along with said first information signal by said transducing means while the tape is driven in said forward direction.

2. A recording and reproducing apparatus according to claim 1;

further comprising means operative when said time code signal from said time code generating means is synchronized with said reproduced time code signal for changing over said transducing means from said reproducing mode to said recording mode in which said time code signal from the time code generating means is recorded with said second information signal.

3. A recording and reproducing apparatus according to claim 1;

wherein said control means includes a system controller and a pause push-button which, when said transducer means is in said reproducing mode for reproducing the previously recorded first information signal and the respective time code signal, is actuable to condition said system controller for causing said tape drive means to drive the tape in said reverse direction for said predetermined distance and then to drive the tape in said forward direction and to change-over said transducing means from said reproducing mode to said recording mode at a time when said time code signal from said time code generating means and said time code signal reproduced by said transducing means are synchronized.

4. A recording and reproducing apparatus according to claim 3;

wherein actuation of said pause pushbutton when said transducer means is in said recording mode conditions said system controller to cause said tape drive means to drive the tape in said reverse direction for said predetermined distance and then to change-over said transducer means to a stop mode, whereupon, a subsequent actuation of said pause push-button conditions said system controller to cause drive of the tape in said forward direction and to establish said reproducing mode and then to establish said recording mode at a time when the time code signal from said time code generating means is synchronized with said time code signal reproduced by said transducer means.

5. A recording and reproducing apparatus according to claim 3;

wherein said means for synchronizing includes decoder means for decoding the time code signal reproduced by said transducer means and providing a decoded time code to said time code generating means, and said system controller controls said time code generating means so as to make the time code signal therefrom correspond to said decoded time code.

6. A recording and reproducing apparatus according to claim 5;

further comprising memory means for storing a time code signal from said time code generating means, and coincidence detecting means receiving the time code signal stored in said memory means and said time code signal from said time code signal generating means and being operative, upon the coincidence of the received time code signals, to provide a coincidence signal to said system controller by which the latter causes said change-over of the transducing means from said reproducing mode to said recording mode for recording said time code signal from said time code generating means with said second information signal.

7. A recording and reproducing apparatus according to claim 6;

wherein said memory means is responsive to said system controller to store the time code signal issuing from said time code generating means at the time when said pause push-button is actuated.

8. A recording and reproducing apparatus according to claim 5;

further comprising indicating means for indicating said decoded time code obtained from said decoder means.