JPS5840243B2 - Doujikirokusaihoshiki - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a simultaneous recording and reproducing system. Generally, the configuration of a video tape recorder is as follows.

In FIG. 1, 1 is an input signal supply device such as a television camera or a microphone, 2 is an input signal amplification circuit, and 3 is an FM modulation circuit.

4 is a recording amplifier circuit that supplies a recording current to the video head 5 from an FM modulated signal, and 6 is a reproduction amplifier circuit that reproduces the recorded content recorded on the video head 5.

7 is a limiter, 8 is an FM demodulation circuit, and 9 is a signal amplification circuit for amplifying the demodulated signal.

An output signal is supplied from this signal amplification circuit 9 to a television monitor, a speaker, or the like.

10.11 is a manual switch for switching between recording and reproduction.

When recording the human input signal from the input signal supply device 1 by the above-described interception, the switches 10 and 11 are closed as shown in the figure, the data is recorded by the video head 5, and at the same time, the FM modulation output is output by closing the switch 11. The signal is supplied to the limiter 7 via the signal amplifying circuit 9, and the recorded data is generated and supplied to the monitor.

When reproducing recorded data, switches 10 and 11 are switched.

As a result, recording data is transferred from video head 5 to switch 1.
0 to the limiter and reproduced by the following circuit.

In the above-mentioned stealing, data being recorded can be supplied to a monitor and checked, but data that has already been recorded cannot be reproduced while the data is being recorded.

Therefore, the present invention eliminates the above-mentioned drawbacks by recording data on a recording tape by a recording means, storing the data in a tape storage means while swinging the tape, and then supplying the data to a reproducing means.

An embodiment of the present invention will be described below based on the drawings.

In FIG. 2, 12 is a television camera, 13 is a video signal amplification circuit, and 14 is an FM modulation circuit.

Reference numeral 15 denotes a recording amplifier circuit which supplies a recording current from an FM modulated signal to a video head 16 which is a recording means, and 17 a tape supply reel which is a recording tape supply means.

Reference numeral 18 represents a tape storage device which is a tape storage means, and 19 represents a take-up reel.

Reference numeral 20 denotes a reproducing head which is reproducing means, and 21, 22, 23 and 24 denote a reproducing amplifying circuit, a limiter, a ]'i'M demodulating circuit and a video signal amplifying circuit, respectively.

FIG. 3 is an explanatory view of the mechanical mechanism of this embodiment.

Reference numerals 18a and 18b denote tape swinging devices, which swing the recording tape T in order to store the recording tape T in the tape storage device 18 in a wave shape.

Note that the tape storage device 18 and tape swing device 18at
18b will be explained in detail later.

25 is a tension control arm, 26 and 27 are guide bars, and 28, 29, 30, and 31 are main guide bars.

32 and 33 are pinch rollers 34, and 35 is a capstan that is a means for feeding the tape T; the capstan 35 is reversible.

36 is an erasing head.

The operation will be explained based on FIGS. 2 and 3.

The normal operation will now be explained.

At this time, the tape swing device 18at18b and the capstan 35 do not operate.

Capstan 34.35 and supply reel 17 are shown in arrow a
direction, and the tape T is fed.

Then, a video signal is supplied from the television camera 12, a recording current flows through the recording head 16, and data is recorded on the tape T.

The tape on which data has been recorded is supplied to the reproducing head 20 via the tape swinging device 18a1, the tape storage device 18, and the tape swinging device 18b.

Here, a reproduction current flows through the reproduction head 20, and the video is reproduced on the television monitor by a signal from the video signal amplification circuit 24.

The tape T is then wound onto the take-up reel 19.

Next, a case will be described in which data recorded on the tape wound in the take-up creel 19 is reproduced while recording is being performed.

First, the tape swing devices 18a and 18b are operated to rotate the capstan 35 in the direction indicated by the arrow.

Therefore, the tape wound around the take-up reel 19 is rewound, and the tape is stored in the tape storage device 18 in a wave shape by the tape swinging device 18b.

Then, the tape is rewound until the portion where the desired data is recorded is at the position of the reproducing head 20.

Then, the operation of the capstan 35 and tape swinging device 18b is stopped.

Next, the capstan 35 is rotated in the direction of arrow a to feed the tape T, and the reproducing head 20 reproduces the data.

During this time, the tape sent by the capstan 34 is
The tape is stored in the tape storage device 18 in a wave shape by the tape swinging device 18a.

Note that the swinging speeds of the tape swinging devices 18a and 18b are synchronized with the tape feeding speed by the capstans 34 and 35.

Next, the tape storage device 18 and tape swing device 18a will be explained based on FIG. 4.

37 is a tape storage box made of a transparent material, and 37a is an openable/closeable top lid.

Reference numeral 38 denotes a rotating shaft that rotates in synchronization with the tape feeding speed by rotation of a servo motor.

39 is a rotating arm fixed to the shaft 38.

Reference numeral 40 denotes a connecting rod rotatably provided on the rotary arm 39.

Reference numeral 41 denotes a swinging arm that is rotatably provided on a pin 42 fixed to the connecting rod 40 and swings about a shaft 43 as a swinging center.

Clamping pieces 44 and 45 are fixed to the swinging arm 41, and the tape T is clamped thereto.

When installing the tape T for the first time with the above configuration, the upper cover 37a is opened, and the tape T is placed on the holding pieces 44 and 45 and held therein.

When the rotating arm 39 rotates at a constant speed, the swinging arm 41
oscillates with a constant oscillating amplitude and oscillating speed, and stores the fed tape T in the storage box 37 in a wave shape.

Note that the tape swinging device 18b also has a completely similar configuration.

FIG. 5 shows a circuit configuration for recording, for example, a long-distance race together with the time required from the start.

44 is a measuring circuit that starts measuring time at the same time as the competition starts, and 45 is a character generator that converts the time signal measured by the measuring circuit 44 into a number pattern forming signal.

A mixer 46 mixes the video signal from the television camera 12 and the numerical pattern forming signal from the character generator 45.

Note that the circuit configuration after the video signal amplification circuit 13 is exactly the same as that shown in FIG.

Further, the mechanical mechanism is also exactly the same as in the previous embodiment.

With the above configuration, the runner and the elapsed time are simultaneously recorded, and when the runner reaches the goal, the Bonil marker point is photographed and recorded.

In the case of a long-distance race, there is a large difference in the finishing time between the top runner and the last runner, so it may be necessary to replay the time when the top runner finishes while recording the following runners.

Therefore, by the same operation as in the above-mentioned embodiment, it is possible to reproduce the goal-in times of runners who have already arrived while recording the subsequent runners.

Note that the tape storage device 18 and tape swing device 18at
18b is not limited to the above-mentioned one, but may be any one having a similar function.

As described in detail above, according to the present invention, since the recording tape on which data has been recorded is supplied to the reproducing means via the tape storage means, data can be recorded and reproduced simultaneously.

Moreover, since the tape is swung when it is stored, the tape can be stored in an orderly manner in a wave shape.

Furthermore, by providing a means for storing the tape sent out from the tape storage means back into the tape storage means, data that has already been recorded can be played back while data is being recorded, especially for live broadcasts of long-distance competitions. In some cases, it is effective to be able to replay the goal-in times of runners who have already reached the goal while recording subsequent runners.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of a conventional video tape recorder, FIG.
The figure is a route diagram explaining the mechanical mechanism of one embodiment of the present invention, FIG. 4 is a partially cutaway perspective view of the tape storage means, and FIG. 5 is a portion added to FIG. 2 of another embodiment. FIG. 16... Recording means, 17... Supply means, 1B... Tape storage means, 18a...
- First tape swinging means, 18b... Second tape swinging means, 20... Playback means, 34...
...first sending means, 35...second sending means, T...recording tape.

Claims (1)

[Claims] 1. A supply means for supplying a recording tape, a recording means for magnetically recording data on the recording tape supplied from the supply means, and a recording means for sending out the recording tape on which this data is recorded. a first sending means; a tape storage means for storing the recording tape sent from the first sending means; and a tape storage means for shaking the recording tape when storing the recording tape in the tape storage means. A tape swinging means, a second sending means for sending out the recording tape from within the tape storage means, and a reproducing means for reproducing the recorded content of the recording tape sent out by the second sending means. Become,
A simultaneous recording and reproducing method in which the reproducing means reproduces data while the recording means is recording data. 2. A supply means for supplying a recording tape, a recording means for magnetically recording data on the recording tape supplied from the supply means, and a first sending means for sending out the recording tape on which this data is recorded. , a tape storage means for storing the recording tape sent out from the first sending means, and a fourth tape swinging means for swinging the recording tape when storing the recording tape in the tape storage means. means, a second sending means for sending out a recording tape from the tape storage means, a reproducing means for reproducing the recorded content of the recording tape sent out by the second sending means, means for rewinding the recording tape sent out by the sending means of No. 2 and storing it again in the tape storage means;
and a second tape swinging means for swinging the recording tape when the recording tape is stored back by this means, and a simultaneous recording and playback system in which desired data is played back by the playback means while data is being recorded by the recording means. .