JPH0344849A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To optionally record plural programs in a designated order by calculating the moving quantity of a tape-like recording medium at the time of starting recording and after each program is recorded during the period of reserved recording and performing sequential control of the reserved recording state corresponding to the calculation results. CONSTITUTION:The device is provided with a means 25 for calculating at least the moving quantity of the tape-like recording medium at the time of starting recording and after each program is recorded based on a reserved content on the tape-like recording medium including a recording order at the time of finishing the reserved recording. And the device is provided with a means 27 for selecting either a video signal inputted from an outer part or the video signal generated in an inner part, and the sequential control of the reserved recording state is performed based on the calculation results by the calculating means 25. Thus, the recording order on the recording medium can be optionally set as an operator likes, and the effective use of the recording medium and the user's operability of the device can be improved.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is applicable to recording of multiple programs such as a video tape recorder (hereinafter referred to as VTR) having a function of recording multiple programs. The present invention relates to a recording and reproducing device capable of recording and reproducing data.

[Prior Art] FIG. 5 is a block diagram showing a schematic configuration of a portion related to scheduled recording in a conventional VTR. In the same figure,
(21) is an input means for exchanging signals with the operation panel (2o) of the VTR, and (22) is a memory for storing reservation details entered manually by the VTR operator via the input means (2o). The means (23) is a timer that outputs the current flower samurai time;
(20 is a sequence control means that outputs operation mode command signals such as recording and stop E to the deck mechanism (not shown) and electric circuit of the VTR in accordance with the outputs of the storage means (22) and timer (23). .

Incidentally, in reality, all of the above-mentioned means shown in FIG. 5 are built into the microcomputer.

Next, the operation of the above configuration will be explained with reference to the time chart shown in FIG. 6 and the recorded contents on the magnetic tape shown in FIG. 7.

FIG. 6(a) shows the reservation details input by the VTR operator via the operation panel (2o). That is, the time (to
) to (tl) (A), (B) the program from time (E2) to (t3), and (t4) to (t5).
), and the program from time (70) to (tl) is designated as (D), and the reservation contents are stored in the storage means (22) via the input means (21) in Fig. 5. remembered.

Note that the information on each program (A) to (0) is handled here in the form of a TV broadcast channel number.

FIG. 6(b) shows the operation of the VTR in the scheduled recording mode. That is, the sequence control means (2
0 selects the program (A) as a signal to be recorded at time (to) from the outputs of the storage means (22) and the timer (23) and outputs a recording command, and the VTR starts recording (
(hereinafter referred to as REC).

Then, at time t, the sequence control means (24
) outputs a stop command, and the VTR stops recording and enters a stopped state (hereinafter referred to as 5TOP).

Subsequently, at time (t2), the sequence control means (
24) selects program (B) as the signal to be recorded, outputs a recording command again, and outputs a stop command at time 1 (t4). Thereafter, similar operations are repeated until time (tl) to complete the reserved operation.

It should be noted that when the VTR is stopped in scheduled recording mode, the power is turned off to all parts other than those that must continue to operate, such as the recording means (22), timer (23), and sequence control means (24). ing.

Figure 7 shows the time (tl), that is, the recorded contents on the magnetic tape (T) at the time when the reservation contents are fulfilled, and each program is recorded in the order of reservation from the beginning of the magnetic tape (T). (A) to (D) are recorded.

[Problem 1 to be solved by the invention] Since the conventional recording and reproducing apparatus is configured as described above, it is possible to record programs on tape in the order in which they are broadcast, regardless of the recording order on the tape-shaped recording medium desired by the operator. There is a problem in that the data is recorded on a shaped recording medium.

In other words, for example, when the operator performs the reservation operation, the probability that the recorded content will be saved for a long time is determined by the program (C).
, (A), (D), and (B), in other words, one program (G) among the four programs has the possibility of being stored for the longest period of time, and program (B) will be deleted the earliest. In cases where there is a possibility that the program (C),
It is desirable to record in the order of (A), (D), and (B).

This recording order makes the recorded contents of program (B) unnecessary and is very convenient when recording another program (E) in that part. When using tape, program CB) and another program (
It is necessary to confirm that the time of program (E) is short by comparing the time length of program (E), which causes problems such as poor usability and unnecessary recorded content remaining.

This invention was made to solve the above-mentioned problems, and when recording reservations, it is possible to record multiple programs on a recording medium in an arbitrarily specified order, and it is also possible to record reservations in the middle. It is an object of the present invention to provide a recording and reproducing apparatus that can easily distinguish whether or not a previously recorded portion is reproduced at the time of subsequent reproduction even in the case of interruption.

[Means for Solving the Problems] The recording and reproducing apparatus according to the present invention is capable of determining at least the recording start time and the recording Q of each program from the reservation contents including the recording order on the tape-shaped recording medium at the completion point of reservation recording. and means for selecting either an externally input video signal or an internally generated video signal, based on the calculation result by the calculation means. The present invention is characterized in that it is configured to perform sequence control of the scheduled recording state.

[Function] According to the present invention, the recording start time and the amount of movement of the tape-shaped recording medium after each program is recorded are calculated during the reservation recording period, and depending on the calculation results, the recording black body is rewound, By sequentially controlling the reservation recording state through fast forwarding or the like, it is possible to manage the recording order of programs on the recording medium at the time when reservation recording is completed as arbitrarily specified.

In addition, by recording the video signal generated internally during advance recording, even if scheduled recording is interrupted midway, it is easy to distinguish whether or not it is a previously recorded portion during subsequent playback. be able to.

[Embodiment of the Invention] Hereinafter, an embodiment of the present invention will be described based on the drawings.

FIG. 1 is a block diagram showing a schematic configuration of a portion related to scheduled recording in a VTR according to an embodiment of the present invention. Therefore, the same reference numerals are given and detailed explanation thereof will be omitted.

In FIG. 1, (25) is a calculation means, and this calculation means (25) receives the outputs of the input means (21) and the storage means (22) and performs calculation processing according to a predetermined algorithm.

The sequence control means (24) also includes a storage means (22).
), the calculation means (25), and the timer (23), the VT
R to deck mechanism (not shown) and electrical circuit
It is configured to output operation mode command signals such as EC, 5TOP, fast forward (hereinafter referred to as FF), and rewind (hereinafter referred to as RE).

In addition, in reality, each of the means (21) to (25) explained at least one
) are all built into the microcomputer.

(26) is a video signal generating means that generates a blue-color video signal synchronized with a video signal input from the outside. (2
7) is a selection means which selects between the video signal inputted from the outside and the blue signal generated by the video signal generation means (26).
One of the color video signals is selected by switching the movable piece (270) according to a control signal from the sequence control means (24).

Next, regarding the operation of the above configuration, refer to the flowchart shown in Fig. 2, the time chart showing the actual operation shown in Fig. 3, and the reservation contents and recording state on the magnetic tape shown in Fig. 4. I will explain.

The flowchart shown in FIG. 2 is based on the storage means (2
2), a control operation performed by the calculation means (25), the timer (23) and the sequence control means (20).

Figure 3(a) shows the reservation details input by the VTR operator, and the programs (A) to (D) to be recorded are shown in Figure 6(a).
), and in addition to the reservation contents, the recording order of the program on the magnetic tape (T) at the time of completion of the reservation recording can be input, as shown in Fig. 4. In this case, the order shown in the figure, that is, (
G), (A), ([1)(B) are input in this order.

In addition, (Ta), (Cho b), (Tc) in Fig. 3 (a)
, (Td) are each program (A), (B),
This is the broadcast time length of (C) and (o).

In step (11) of the flowchart, the recording start time on the next magnetic tape is calculated from the reservation contents. That is, the recording start time is derived according to an algorithm that secures an area for future recording by advance recording, that is, by advancing the recording start time.

For example, in the case of Figure 3, the first thing to be recorded is the program (A
), but since the recording order on the magnetic tape is specified as shown in Figure 4, the time (10-↑C) is earlier by the broadcast time length (Tc) of the program (C). Output as the recording start time.

Next, in step (12), the reception channel of the VTR is tuned to that of program (A).

In step (13), when the output of the timer (23) matches the above calculation result (tO-Tc), the sequence control means (20) outputs a recording start command.

Subsequently, in step (14), the above time (to
- The sequence control means (20) determines which start time of the reserved program Tc) is. If it is determined that it is not any start time of the programmed program and is a program other than the reserved program, step Shifting to (15), the blue-color video signal generated by the video signal generating means (26) is recorded, and when the output of the timer (23) reaches (EO), it is input from the receiving channel. Record the video signal of program (A).

Next, in step (16), when the output of the timer (23) reaches the recording end time (tl), a stop command is output. That is, as shown in FIG. 3(b), the VTR generates a blue-colored video signal (
V) and the program (A) from time (to) to time (tl).

Subsequently, in step (17) it is determined whether or not the scheduled recording has been completed, and when the determination is No, step (18)
Here, the amount of movement of the magnetic tape is controlled based on the relationship between the current position of the magnetic tape and the next recording start position.

Here, 1O-fL4 shown in the t54 diagram indicates the position of the magnetic tape, and the position at the current time (tl) is sentence 2, and the next program (B) can be recorded in advance from here. , it is concluded that si magnetic tape movement is unnecessary.

Next, the program returns to step (11) and calculates the recording start time of program (B) on the magnetic tape. in this case.

As is clear from FIGS. 3 and 4, recording starts at a time (t2-Td) earlier than the recording start time (t2) of program (B) by the broadcast time length (Td) of program (D). It's time. Hereinafter, since the operations up to step (17) are the same as in the case of program (A) described above, the explanation will be omitted.

In step (18), the position of the magnetic tape at the current time is 14 in Figure 4, and the next recording start position is sentence O, so RE is moved to the position of length (see 4 - sentence 0). At this time, the sequence control means (20 is the RE
It outputs a command signal and counts the number of CTL signals. Here, the CTL signal is one frame of the video signal (
It is recorded at the bottom end of the magnetic tape at a rate of one per 33 mS), and is used to control the running of the magnetic tape during playback.

During RE and FF, it is used to detect the amount of movement of the magnetic tape.

That is, by moving the CTL signal by N times, the magnetic tape moves by (33XN) ms in recording time. Therefore, the count value of the CTL signal is equal to the above length (statement 4
−0) minutes, that is, in the recording time (Ta+↑b+
Tc+↑d), the sequence control means (24
) outputs a stop command signal, and the magnetic tape comes to a halt. The time required for RE is as shown in Figure 3 (T
r), and the time required for FF is (Tf).

Recording of program (C) starts at time (t4) from the position of magnetic tape sentence 0 set by the above RE operation and ends at time (t5). After that, in step (18), FF is performed by the length (see 2 - sentence 1), and the amount of movement of the magnetic tape at this time is detected using the CTL as in the case of RE.
This is done by counting signals. The position of the magnetic tape at the end of this FF is sentence 2.

Recording of program (D) starts at time (to) and ends at 1 time (to).
The process ends at t7).

As described above, reserved programs (A), (B) (
C) and CD) are all recorded according to the desired state of the magnetic tape as shown in Fig. 4, and then step (17) is performed.
), the scheduled recording ends.

In the above embodiment, the REC during the scheduled recording period is
, RE, and FF operations are simply described as 5TOP, but similarly to the conventional example, during this stop period, the storage means (22), calculation means (25), timer (23), sequence control means (
24), etc., may be configured so that the power is turned off except for the parts that must continue to operate.

Further, in order to reliably record the reserved program without missing it, the calculating means in the embodiment may record the preceding and following portions of the recorded program for a short time.

In the above embodiment, it has been explained that a blue-colored video signal is recorded during advance recording, but it is also possible to record a program being broadcast and display a subtitle to indicate that this is not a reserved program. By configuring this, even if reserved recording is interrupted, it is possible to display on the TV screen during subsequent playback to notify the user whether or not the portion has been previously recorded.

Furthermore, in the above embodiments, a device that generates a video signal that is synchronized with the video signal input from the outside is used as the video signal generation means, but it is also possible to generate a video signal that is asynchronous to the video signal that is input from the outside. However, the same effect as in the above embodiment can be obtained.

Furthermore, at the end of the reservation input, the calculation means (2
In step 5), we will determine whether or not the reservation details can be realized, and if it is not possible,
By configuring the system so that the operator is informed of this using the display section of the operation panel or the TV screen, the user-friendliness of the -layer can be improved.

Furthermore, in the above embodiment, it has been explained that all the means shown in FIG. Even if it is configured with an IC or the like, the same effects as in the above embodiment can be obtained.

Furthermore, although the above embodiments have been described in the case of a VTR, the same effect can be obtained even if the invention is applied to any recording/reproducing apparatus that uses a tape-shaped recording medium such as a DAT.

[Effect of the invention J As described above, according to the present invention, it is possible to specify the recording order on the tape-shaped recording medium at the time of completion of reserved recording, and during the reserved recording period, the advance recording can be started according to the reserved contents. ,
Since the tape-shaped recording medium is configured to be able to be rewound and fast-forwarded, the recording order on the recording medium can be arbitrarily set as desired by the operator, and the recording medium can be used effectively, making it easier to use. can be directed.

In addition, since the device is configured to record the video signal generated inside the device during the pre-recording period, even if scheduled recording is interrupted midway, the pre-recording will be displayed on the playback screen during subsequent playback. This has the effect that it is possible to easily distinguish whether it is a part or not.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of parts related to scheduled recording of a VTR according to an embodiment of the present invention, FIG. 2 is a flowchart showing its operation, FIG. 3 is a time chart showing the actual operation, and FIG. Fig. 4 is an explanatory diagram of the reservation contents, Fig. 5 is a block diagram showing the schematic configuration of the parts related to scheduled recording of a conventional VTR, Fig. 6 is a time chart showing its operation, and Fig. 7 is a diagram of the conventional VTR. FIG. 4 is a diagram of a magnetic tape pattern obtained by scheduled recording. (21)...Input means, (22)...Storage means, (
23)...Timer, (24)...Sequence control means, (25)...Calculation means, (26)...Video signal generation means, (27)...Selection means. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Claims] (1) In a recording and reproducing device equipped with a function of pre-recording a plurality of broadcast programs on a tape-shaped recording medium, an input means for specifying the recording order on the recording medium at the time when the pre-programmed recording is completed; a calculation means for calculating at least the recording start time and the amount of movement of the tape-shaped recording medium after each program is recorded from the included reservation contents; and a video signal generation means;
selection means for selecting either the video signal generated by the video signal generation means or the video signal input from the outside; storage means for storing the calculation result by the calculation means; 1. A recording/reproducing device comprising: a sequence control means for managing reserved recording based on the reservation.