JPS6187290A - Video tape recorder - Google Patents

Abstract

PURPOSE:To store a correspondence to a small number of addresses of the second memory means with important places by an operator by preserving at the second memory means only when the result is judged to be important, after an indicated time code is temporarily stored to the first memory means. CONSTITUTION:When an entry key 13a is pushed, then, a time code 11 is stored in an address 15b of the cue work. When the stored time code is necessary, a setting key 13b is pushed, then, the contents are copied in an address 15c of a setting work and further, free cue 1 - cue 5 and keys 13c-13g are pushed, then, the contents are stored in addresses 15d-15h of free cue 1 - cue 5. Namely, the necessary time code only is stored in the addresses 15d-15h of cue 1 - cue 5, and the stored time code will not be annihilated by the indication of the time code thereafter.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a video tape recorder that can arbitrarily cue desired recorded content recorded on a recording tape using a time code.

[Conventional technology]

For example, when a broadcasting station is broadcasting a live broadcast of Sweets, there is a desire to immediately rebroadcast famous songs such as Fine Play. In response to this demand, we have prepared a video tape recorder that uses a so-called time code to arbitrarily locate the desired recording content recorded on a recording tape, and broadcast signals are continuously transmitted to this video tape recorder. In addition to recording the information, it was also possible to record the time code at that time immediately before the famous hot water surface, and when necessary, to cue up the time code and rebroadcast it. However, for example, it is extremely difficult in practice to manually record a time code of six digits, two digits each for minutes, seconds, and frames, one after another by hand while looking at the screen.

In response to this, an apparatus has been proposed in which a so-called cue switch is provided, and when the operator presses this switch, the time code at that time is automatically recorded. However, in sports broadcasts, etc., even if time code is recorded, it is common that it does not become a famous hot water surface, and there are times when the famous hot water surface is predicted one after another, and each time, the time code is rewritten by pressing the cue switch. In some cases, it may be better to rebroadcast from a point earlier than the last time you pressed the button.

Therefore, in conventional devices, the memory for recording the time code is blanked at address 5, for example, and each time the operator presses the cue switch, the tie-now code is sequentially recorded at address 5, and when address 5 becomes full, the old A device has been proposed that rewrites objects sequentially.

According to this, it is possible to cue up to five previous points in time.

However, in this device, time codes at points earlier than five times are automatically erased by rewriting. For this reason, it is difficult to rebroadcast famous hot springs from more than five years ago. For example, in sports broadcasts, there is a need to rebroadcast particularly important famous spots after the match has ended, and in that case, cueing must be performed using the same operation as a device without memory. There wasn't. On the other hand, it is conceivable to provide more memory addresses than the above five, but if you increase this number unnecessarily, you will have to manipulate which address the time code of the desired recording content is stored in. This increases the amount of memory and increases the burden on the operator, which may actually worsen operability.

[Problem that the invention seeks to solve]

Conventional video tape recorders were constructed as described above. For this reason, conventional devices have had problems such as limited range of use, increased burden on the operator, and poor operability.

[Means for solving problems]

The present invention has a built-in time code generator (lυ), records the time code from this generator αυ on the recording tape (6) together with the video signal, and specifies the time code when desired. 6) In a videotape radar capable of cueing, during recording, the first
A first storage means (15b) stores the time code according to a signal from the instruction means (13a), and a plurality of addresses are provided and the contents stored in the first storage means (15b) are Second storage means (15d) which can store data in any of the above addresses by signals from a plurality of second instruction means (13c) to (13g) corresponding to the address.
(15h), and the first and second storage means (1
5b) and (15d) to (15h) can be arbitrarily extracted to locate the beginning of the recording tape (6).

[Effect]

According to the above-mentioned device, after the instructed time code is stored in the first storage means, the time code is stored in the second storage means only when the result is judged to be important. As a result, the range that can be cued is not limited by the number of times instructions are given, and the desired cue can be made at any time, and the operator can also check the correspondence between a small number of addresses in the second storage means and important scenes. All you have to do is memorize it, and the operability can be greatly improved.

〔Example〕

In FIG. 1, a video signal such as a broadcast signal supplied to an input terminal (1) is supplied to a recording side contact of a recording/playback changeover switch (4) through a recording circuit (2) and a mixing circuit (3). (4) Signal power from (rotating head device (
5), it is recorded on the recording tape (6). Further, the signal reproduced from the recording tape (6) ts by this rotary head device (5) is taken out to the reproduction side contact of the changeover switch (4),
The signal is outputted to an output terminal (8) through a reproducing circuit (7).

A time code generator αυ is also provided, and the time code generated here is supplied to a mixing circuit (3) and inserted into the video signal, and is also supplied to the central processing circuit 0z.

Furthermore, as shown in Figure 2, press the En) IJ-key (13
a), set key (13b), cue 1 to cue 5 keys (13c) to (13g), and recall key (13h) are provided, and signals from these keys are sent to the key input circuit C.
1 and il to the central processing circuit α2.

In the central processing circuit az, key manual processing is performed according to a flowchart as shown in FIG. 3, for example. That is, in the figure, the main routine from ■→■ is executed, and if there is a key human power, it is determined in step [21]. Also, if you don't have the key personnel, step
22], other processing is executed and the main routine is repeated.

Furthermore, when the key force is determined in step [21], it is determined in step [23] whether or not the key is an entry key (13a). And the entry key (13a
), in step [24], for example, the contents of the timer address (15a) where the current time code is stored are stored in the cue work from among the addresses of memory α9 configured as shown in FIG. It is copied to address (15b) and returned to the main routine.

Next, if in step [23] it is not the entry key (13a), it is determined in step [25] whether or not it is the set key (13b). and set key (13b)
If so, in step [26], the address of the queue work (
The contents of 15b) are copied to the set work address (15c) and returned to the main routine.

Furthermore, if it is not the set key (13b) in step [25], it is determined in step [27] whether or not it is the cue 1 key (13c). and cue 1 key (13c
), the contents of the set work address (15c) are copied to the queue 1 address (15d) in step [28], and the process is returned to the main routine.

Similarly, cue 2 to cue 5 keys (13d) to (13
When g) is keyed, set work address (15c)
The contents of are the addresses of queues 2 to 5 (15e) respectively.
~(15h) and then returned to the main routine.

Furthermore, if it is not the cue 5 key (13g) in step [29], press the recall key (13h) in step [31].
It is determined whether or not. and recall key (13)
h), the contents of addresses (15d) to (15b) of queues 1 to 5 are displayed on the display device (1) in step [32].
Displayed as ■. This display is also displayed when the recall key (13h
) may be configured so that the queues are displayed in order from queue 1 to queue 5 each time the button is pressed. After this display, the process returns to the main routine. Also, if the recall key (13h) is not pressed in step [31], the process returns to the main routine.

Therefore, in this device, when the entry key (13a) is pressed, the time code at that time is stored in the cue work address (15b). And when this memorized time code is what you need, press the set key (13).
When b) is pressed, the contents are set work address (15
c), and when any of the cue 1 to cue 5 keys (13c) to (13g) are pressed, the contents are stored in any of the cue 1 to cue 5 addresses (15d) to (15h). Furthermore, in this state, the entry key (13a)
) is pressed no matter how many times the address (1
The contents stored in 5d) to 15h will not be deleted.

Also, if the entry key (13a) is pressed and the time code is stored in the cue work address (15b), but it is not needed, the entry key (13a) can be pressed the next time it is expected to be needed. Therefore, the time code at that time is the address of the cue work, g-(1
5b) and the previous contents are erased.

Furthermore, if you cannot decide immediately whether it is necessary or not, use the set key (1
3b) is pressed, the queue work address (1) is pressed.
The contents of 5b) are copied to the set work address (15c), then the entry key (13a) is pressed and the next time code is stored in the cue work address (15b), and the previous time code is copied to the set work address (15c). When required, press any cue 1 to cue 5 keys (13C) to (13g) to change the time code before the set work address (15c) to the cue 1 to cue 5 address (15d). ~
(15h). When a later time code is required, the set key (13b) is first pressed and the contents of the cue work address (15b) are changed to the set work address (1).
By performing the above-mentioned operation after being copied to 5c), the subsequent time code is stored in arbitrary addresses (15d) to (15h) of cue 1 to cue 5.

In other words, in this device, only the necessary time codes are stored at addresses (15d) to (15h) of queues 1 to 5.
), and this stored time code will not be erased by subsequent time code instructions.

When cueing is performed in this device, when the recall key (13h) is pressed, the contents of the addresses (15d) to (15h) of cues 1 to 5 are sequentially displayed on the display device (13h).
61 is displayed. When the device is set to cueing mode with the desired time code displayed, the selector switch (4) is first switched to the playback side contact, and the time code in the playback signal is transferred to the central processing circuit (12!). A control signal is supplied from the central processing circuit (121) to the system control circuit (171) so that this time code and the time code displayed on the display device (161) match. can be rebroadcast at any time.

Thus, with this device, it is possible to perform a desired cue search at any time, and the operability can be greatly improved.

〔Effect of the invention〕

According to the present invention, after the instructed time code is stored in the first storage means, the time code is stored in the second storage means only when the result is judged to be important. Therefore, the range that can be cued is not limited by the number of times instructions are given, and the desired cue can be made at any time, and the operator can memorize the correspondence between a small number of addresses in the second storage means and important scenes. All you have to do is to do this, and the operability can be greatly improved.

[Brief explanation of the drawing]

FIG. 1 is a configuration diagram of an example of the present invention, and FIGS. 2 to 4 are diagrams for explaining the same. αυ is a time code generator, tlz is a central processing circuit, (
13a) to (13h) are keys, and t19 is a memory. Figure 1 Figure 2 Figure 4

Claims (1)

[Claims] A video tape recorder that includes a built-in time code generator, records the time code from the generator on a recording tape together with a video signal, and allows the user to search the beginning of the recording tape by specifying the time code when desired. During recording, a first storage means stores the time code according to a signal from the first instruction means, and a plurality of addresses are provided, and the contents stored in the first storage means are stored at the plurality of addresses. and a second storage means that can be stored at any of the above addresses by signals from a plurality of second instruction means corresponding to the above, and the contents of the first and second storage means can be arbitrarily retrieved. A video tape recorder characterized in that it is possible to locate the beginning of the recording tape.