JPS59207447A - Video signal reproducer - Google Patents

Abstract

PURPOSE:To improve the operability of a video signal reproducer by designating a section during which a key is operated as a repeat reproduction section. CONSTITUTION:Driving means 19 and 20 shift a long record tape in both forward and reverse directions, and a reproduction means 26 reproduces the video signal recorded on the tape. A designating means including a designation key 21 designates a repeat section where the tape is repetitively reproduced. A control means controls the means 26 to repeat repetitively the repeat section. Then the designating means defines a tape section corresponding to the operation period of the key 21 as a repeat section. At the same time, a tape section corresponding to a prescribed period of time is defined as a repeat section when the operation period is within a prescribed period of time.

Description

[Detailed Description of the Invention] Techniques for Reproducing Video Signals (11) Reproducing video signals from long recording tapes
The present invention relates to a reproducing apparatus having a device T for reproducing a section.

Hereinafter, the present invention will be referred to as a magnetic recording image reproducing apparatus (hereinafter referred to as v'i"i
t) will be explained using an example.

<Description of Prior Art> Generally, when playing repeatedly with the conventional V'1llt (
, +, stop, reverse, stop, forward, and regenerate operation keys had to be operated in sequence, and the above operations had to be repeated many times.

If you have learned something from a recorded tape (9) or by repeatedly watching the actions of a skilled sportsman, you can learn about your own bad habits and learn how to avoid them by repeating the same scene over and over again. I often play the game over and over again until I'm satisfied with it.This is golf.

It is said that the quickest way to improve is to imitate the stops.

However, if you are watching the screen and repeating the swing with your own consent, you will not be able to do it.

Each time you press a key to stop or play forward, the operation is interrupted.
Not only is it impossible to concentrate on practicing, but the tracking of the regeneration head with respect to the recording track is misaligned each time.

<Aspects of the Invention> In view of the above-mentioned shortcomings of the prior art, the present invention allows a repeat playback section to be specified by a simple key operation, as well as repeat playback. The purpose is to provide equipment.

Example The figure is a control circuit diagram of an embodiment of the present invention.

In the figure, 1 is an indicator that displays the contents of a tape counter 6, 2 is a decoder that converts the tape counter data into display data, and 6 is a tape counter that receives a rotation frequency signal FG of a reel motor (not shown). A signal is input to the clock terminal C, and a signal indicating the 1E rotation of the reel motor is input to the UP/down terminal, and when the reel motor is rotating in the normal direction, the count up is counted up, and when the reel motor is rotating in the reverse direction, it is counted down.

A D-type flip-flop (hereinafter referred to as DFF) 4 inputs the signal from the OR gate 2B to its D terminal, and operates in synchronization with the clock from the clock generator 8. 5 is the same DI as 4! ' In F 1) Input the Q output of FF 4 to its D terminal. 6 and 7 are AND gates that form latch signals to store the contents of counter 6 in registers 9 and 10; 8 (is a clock generator; 9.10- is a register; register 9 is the counter 6 at the start position of repeat playback);
10 stores the data of the end value it. 11 and 12 are counter 6 and register 9 and 100 respectively.
A comparator that compares the size of data, 13.1! ,22,2
5゜28 is an or gate, 15.16 is a flip frog (hereinafter referred to as F, F), 17.18 is an and gate, 19
2 is a reversing device for driving the tape in reverse, 20 is a normal rotation device for driving the tape in the forward direction, 21 is a repeat playback operation key, 26 is a reset key for the counter 6, 24 is a one-time playback operation key, 2
Reference numeral 6 represents a reproducing circuit including a reproducing head and a reproducing 1 number processing circuit, and 27 represents a timer circuit that maintains the high level output of the repeat reproducing edge 1/key 21 for a predetermined period of time.

Explain the operation. When the apparatus is in the playback mode, the data on the counter 6 increases or decreases in accordance with the forward or reverse rotation of the frequency signal 1j from the reel motor.

At this time, repeat play ~ operation key (hereinafter referred to as repeat key) 2
When 1 is pressed, 1) J! '
The 7-level Iki number is input to the D terminal of F4,
L) F' The Q output of F 4 goes to the low level in synchronization with the rising edge of the clock of the clock generator 8. Then 1. ) The D terminal of FF 5 also goes to level, and after waiting for the next clock rise, the Q output of FF 5 goes to level. And gate 7 bar v ht
Since the Q output of p4 and the Q output of FF5 are input, it becomes high level at the first rising edge of the clock after the reheat key suppression operation, and becomes low level at the rising edge of the next clock. Also, AND gate 6 is I) F F4's Q
Since the output and the Q output of DFF'5 are inputted to the C color, conversely, after the operation of releasing the repeat key 21 is performed, the level goes to / for one clock interval. Further, if the reheat key 21 is released within the time measured by the timer 27, the output level of the timer 27 becomes high level for one clock interval after falling. The high level output of the AND gate 7 is latched by the data register 10 of the counter 6 when the repeat key 21 is suppressed, and
The output is latched to the register 9 when the repeat key 21 is released or the output of the timer 27 falls.
1S4-';
"J L' 0 is input to the terminal of FF16 through the OR gate, so it is normally at low level.Also, even in the playback mode, the output of the playback operation key 24 is 7.
・Since it is at low level, the Q output of FF16 is at low level.

If the repeat key 21 is pressed here, 1.゛up r 16
The Q output of the AND gate 17 is at a high level, and the FF15 is set via the latch signal from the gate 7. The Yusei recycler 26 is put into operation via the moving device ?f19 and the OR gate 25. That is, the device is placed in the reverse playback mode.

Then, the messenger should switch to mode 81 (by turning the TV monitor from the child's perspective to the position where repeat playback started, and then continue pressing the repeat key 21 until the starting position is reached. Also, in the second mode, when the user presses the repeat key 21 and then presses the button f, the operation stops due to a time failure of the timer circuit 27: I'(,'
The tape is reversed by i'iJ.

Then, as described above, the output of the gate 6 goes to the low level for one clock interval, and the contents of the 60 counters at that time are latched into the register 9. At the same time, I"JI" 15 is reset via the OR gate 22 to stop the reverse rotation.

Then, through the AND gate 18, normal rotation If, (&
9 i1'-;: 20 causes the tape to rotate forward.

09:00 (〒1 I1.1 J Road 2 Otsu will also maintain the January birth state, so I will go to checkered playback mode.

11E1 type yen/:1 mimode:・ζ wobble counter 6ζ
Count up 11゛G and go to C. Then, the data is the same as the data in the register 12 that stores the data of the counter or the data of the repeat end position.
Then, the 9 output of register 12 becomes /・I level and l
” Set E 15 and automatically shift the device to fi 5k<yen/% mode.

When the reverse play mode is entered, the counter 6 (l-i, i+'
Count down iP゛q. Then, the data in the counter 6 is equal to or smaller than the data in the register 11 that stores the data at the start position of repeat i;i9 ;24)
And ratio + i4S? The Q output of the device 11 becomes high level,
1.Reset F15 and move to automatic fishing and forward playback mode. Currently, this operation is repeated nine times.

In this way, the repeat reproduction operation key 21 on the tape is played from the pressed position to the position at which it is released (first mode), or the pressed position of the repeat 21 and the timer circuit 270 are The playback of 1- (second mode) with the position determined by (a) is repeated.

The repeat playback operation is canceled by pressing or rolling the playback key 24. That is, it is executed by closing the gates 17 and 18 when the FlI 16 output (2) becomes O-level. (It is also possible to project.

In this way, in this JF = jlF + example 16, the length of the repeat coal amount can be selected between the first mode, which arbitrarily determines the length, and the second mode, which sets it as a predetermined time, or by operating a single key. i] Since it is Tri, the frequency of use of C for users of IF61 can be increased by chewing it. It is also possible to set the length of each repeat.

In addition, in the device of this thermal power 111 example, you can set the end position of the repeat 1 section to 1. Since the repeat section is set up after confirming whether the video is recorded, J or LjJ is set, there is no need to worry about disappointing results, and key operation is extremely simple.

In this embodiment, the count is performed based on the signal related to the rotation of the reel motor.However, the signal related to the rotation of the reel motor may be counted.

Also, reverse 11 during repeat;
It is configured as follows, but repeats, Id starting position j5Ai Jjj
The playback device of the present invention has a first mode in which the length of the repeat section is arbitrarily determined. Since the predetermined length is too short 4) -142 modes can be selected within 1-1T by one key operation, it is convenient for the user to have a second assistant.

[Brief explanation of drawings]

The diagram shows the VTR of this example.
Figure 1). In the figure, 1 is a display, 2 is a decoder, and 61. :i tape counter, 4 and 5 are D-type flinographs, 6.7
, 17.18 is an AND gate, 10.11 is a register,
11.12 is Hi J bite! 13,14゜22.25 is or gate, 15.16 is flip frog, 19,2
．． 0 is respectively reversed, normal, l17j A bar movement' [center 11:;
', %21 indicates the repeat playback operation key, and 26 indicates the 1st cow rotation.

Claims (1)

[Claims] A driving means for transporting a long recording tape in the forward and reverse directions, a reproducing means for reproducing the video signal recorded on the tape, and a designation key for designating a repeat section of the front α tape to be repeatedly reproduced. and a control means for controlling a +3U-Machio means to repeatedly reproduce the repeat section, and the former 8G specifying means selects a tape section corresponding to the operating period during which the specified key is operated. 1111 as a repeat section, and a tape section corresponding to a predetermined time 1111 when the I]'J tit operation period is equal to or longer than a predetermined time is used as a repeat section.