JPH03162753A - Recording and reproducing device - Google Patents

Abstract

PURPOSE:To optionally designate recording order on a recording medium by an operator and to efficiently utilize the recording medium and hence to obtain a handy recording and reproducing device by making the structure capable of rewinding and fast forwarding the recording medium in accordance with reservation contents during a reservation recoding period. CONSTITUTION:The subject device is provided with a sequence control means 5 for outputting a mode command signal (video recording, stopping, fast forward ing and rewinding, etc.) to a deck mechanism and an electric circuit of the VTR by receiving an FG signal 7 generated from a frequency generator. Then, when a reservation video recording state is set, a video recording starting posi tion on a magnetic tape is derived from its contents, and the tape is moved to this position by means of a fast forwarding/rewinding function. In other words, a recording (video recording) starting position is derived according to an algorithm for securing an area on the recording medium on a schedule for video recording afterward, to be ready for the following recording. By this method, the reserved recording can be performed in order of designated contents on the recording medium, thus improving the handling of a recording medium such as a magnetic tape, etc.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a recording and reproducing apparatus, and particularly to a recording and reproducing apparatus such as a video tape recorder that specifies a recording area on a recording medium and performs reserved recording.

[Prior Art] FIG. 5 shows a schematic block diagram of a portion related to scheduled recording in a conventional video tape recorder (hereinafter referred to as VTR).

In the figure, input means (2) sends and receives signals to and from the operation panel (1) of the VTR, and input means (2) inputs the reservation details entered by the VTR operator into the operation panel (1). A storage means (3) for storing the current time, a timer (4) for outputting the current time, and an operation mode command signal (not shown) to the deck mechanism and electric circuit of the VTR according to the outputs of the storage means (3) and the timer (4). A sequence control means (5) for outputting (recording, stopping, etc.) is shown.

These manual means (2), memory means (3), timer (4)
) and the sequence control means (5) are usually built into one microcomputer.

Next, the operation of the conventional recording/reproducing apparatus having such a configuration will be explained using FIGS. 6 and 7. Figure 6(a) shows VT
This is the reservation details input by the R operator. That is, time t.

Program A1 from time t to 11 Program B from time t to t3
, program C1 from time t4 to t52, and program D from time t6 to t7 are reserved. These reservation details can be entered using the input means (2) shown in Figure 5.
) and then stored in the storage means (3>).The program information is handled 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 (5) selects program A as the signal to be recorded at time 10 from the outputs of the storage means (3) and the timer (4), and outputs a recording command, and the VTR starts recording. At time t1, the sequence control means (5) issues a stop command, and the VTR stops recording and enters a stopped state. At time [2], the sequence control means (5) selects program B as the signal to be recorded and issues a recording command again, and at time t3 issues a stop command. Thereafter, similar operations are repeated until time t7 to complete the reserved operation. It should be noted that when stopped in scheduled recording mode, the power is turned off to all parts other than those that must continue to operate, such as the storage means (3), timer (4), and sequence control means (5). There is.

FIG. 7 shows the recorded contents on the magnetic tape at special time t7, that is, when the reservation contents are fulfilled.
Records are recorded in the order in which they were recorded starting from the beginning of the magnetic tape.

[Problem to be solved by the invention] Since the conventional recording/reproducing device had the above configuration,
There has been a problem in that programs are recorded on the magnetic tape in the order in which they are broadcast, regardless of the recording order on the magnetic tape desired by the operator.

Therefore, when recording other programs on a part of the magnetic tape recorded in this way, there is no need to compare and confirm the time of the program that has already been recorded and the time of the program to be recorded. However, there were inconveniences such as unnecessary records being left in the tail section and areas of unplanned records being erased.

This invention was made in order to solve this problem, and it is possible to record reservation records on a recording medium in the order of specified contents, thereby improving the usability and usage efficiency of recording media such as magnetic tape. The purpose is to provide a recording/playback device.

[Means for Solving the Problems] The recording and reproducing device according to the present invention calculates the amount of movement required to record each reserved recording content and all reserved recording contents from the reserved content including the reserved recording order on the recording medium. The apparatus includes a calculation means for calculating the amount of movement of the recording medium after recording, and a sequence control means for controlling scheduled recording based on the calculation result.

[Operation] The recording/reproducing device according to the present invention rewinds or fast-forwards the recording medium according to the calculation result of the calculation means, and the recording order on the medium at the time of completion of reserved recording is arranged in the specified order of contents. become.

[Example] Next, an example of the present invention will be described in more detail with reference to FIGS. 1 to 4.

FIG. 1 is a block diagram schematically showing the parts related to scheduled recording of a VTR. Input means (2) for sending and receiving signals related to recording
, storage means (3), calculation means (6) that receives the outputs of the human power means (2) and storage means (3) and processes them according to a predetermined algorithm, a timer (4) that outputs the current time, and storage means ( 3) In response to each output of the calculating means (6) and the timer (4) and the FC signal (7) generated from the frequency generator attached to the motor shaft of the capstan motor, the deck mechanism of the VTR (not shown) and Sequence control means (5) are shown for outputting mode command signals (record, stop, fast forward, rewind, etc.) to the electrical circuit.

These input means (2), storage means (3), and timer (4)
), the sequence control means (5) and the calculation means (6),
In reality, it's all built into the microcomputer.

Next, the operation of this embodiment is explained in the flowchart shown in FIG. 2, the reservation contents and desired recording state on the magnetic tape shown in FIGS. 3a and 3b, and the recorded content on the magnetic tape shown in FIG. Use and explain. The flowchart in FIG. 2 shows the control operations performed by the storage means (3), calculation means (6), timer (4), and sequence control means (5) shown in FIG.

Figure 3a shows the reservation details input by the VTR operator, and the program to be recorded is as described in the conventional example (Figure 6(a).
)) is the same as In the case of the embodiment according to the present invention, in addition to the reservation contents in the case of the conventional example in which recording is performed in the order of recording time,
As shown in Figure 3b, the recording order of the programs on the magnetic tape at the time of completion of scheduled recording can be input in the order of the recorded contents regardless of the recording time. Contents at time C, contents A at ml, 4th
It is assumed that content D at time point and content B at second time point are arranged manually in this order. Note that Ta, Tb s T in Figure 3 a
c. ．． Td is the broadcast time of programs A, BSC, and D, respectively.

Once the scheduled recording status is set, in step (8) of the flowchart shown in Figure 2, the recording start position on the magnetic tape is derived from the contents, and the tape is moved to that position using the fast forward and rewind functions. let That is,
The recording start position is derived according to an algorithm that secures an area on the recording medium that is scheduled to be recorded in the future, and prepares for subsequent recording.

That is, in this embodiment, as shown in FIG. 3b, program A is recorded first, but the recording order on the magnetic tape (recording medium) is after program C is recorded.

Therefore, the length l of the magnetic tape (recording medium) required to record the broadcast of program C from the broadcast time Tc of program C. -11
As shown in FIG. 4, fast forward (FF) L by the amount required to record program C to secure space, move to fitJl1 before recording program A, and stop (S t
op). In this way, an area for recording (REC) the scheduled program C is secured, and the recording medium position for the first recording is ready.

The movement of such a recording medium, that is, a magnetic tape, is VT
In the case of R, use the capstan motor. At this time, decide how much to fast forward the magnetic tape? This is a frequency generator (F) attached to the motor shaft of the cab stan motor.
This is the FG signal generated from G). Considering that N pulses are generated every time the capstan motor rotates once, the number of rotations of the capstan motor can be detected by counting the pulses. The amount of movement of the magnetic tape, which is a recording medium, is detected from the number of rotations from this cab stan motor, and a sequence control means (5) issues a signal to control the amount of fast forwarding (FF).

Next, in step (9), the receiving channel of the VTR is tuned to that of program A. In step (10), the output of the timer (4) is the recording start time t of program A. At the point when the sequence control means (5) starts recording (REC)
Output the command.

In step (11), the sequence control means (5) issues a stop (S t op) command at time t1. That is,
As shown in FIG. 4, the VTR has an area j! where program C scheduled to be recorded later can be recorded. o~1■ is first secured, and time t is reached. When it comes to MA,? Area 1 ■ ~, i! 2, recording (REC) is performed.

Next, in step (12), since the reservation is not completed, the determination is NO, and the process returns to step (8).

Although program B is to be recorded next, program D is desired to be recorded on the magnetic tape at a position before program B, as shown in FIG. Here, after securing the areas e2 to 13 for recording program D using the method described above, at time t2, program B is recorded in areas 13 to 14 (R
EC). Here, the current position of the magnetic tape is ,i!, as shown in FIG. 4, the area of the magnetic tape for program C that you want to record next is j! o-j! It is 1.

Therefore, after recording (REC) program B, step (8)
), the amount of tape movement is calculated based on the FG signal. It rewinds (REW) to the position and then stops (Stop). Then, at time t4, the area j! o-j! Record program C on l (REC)
Stop after reaching L. After that, program D shown in FIG. 3b is recorded! lJ! Fast forward to ■ (FF)
Then, after sending, stop (Stop) L, step (8) is completed, and then the process moves to step (9), selects the channel of program D, and moves to step (10). Thereafter, at time t6, recording (REC) is started, and at time t7, step (11) is operated to end recording.

When all the programs A, BSC, and D thus reserved are recorded in the desired arrangement shown in FIG. Proceed to step (13). In step (13), it is determined whether the position of the magnetic tape on which the final scheduled recording has been completed is the end of all the scheduled recording sections. In this embodiment, the position of the magnetic tape at the time when all reserved programs A, B, C, and D have been recorded is j! as shown in FIG. 3b. 3, so step (14)
Proceed to. Then, position J on the magnetic tape where program B is recorded! 4 (i.e., the end of all scheduled recordings), use the same method of moving the magnetic tape to the recording start position of each program as described above. Move to position 14.

When the movement is completed, return to step (13) again and press YE.
It is judged as S, and the scheduled recording ends.

In addition, in the above embodiment, recording during the scheduled recording period (RFC)
, rewind (REW), and fast forward (FF) operations are described as stop (S t op) in l1, but as in the conventional example, during this stop period, the storage means (3), calculation means (6), and timer (
4) The power may be turned off for parts other than those that must continue to operate, such as the sequence control means (5).

Further, in order to ensure that the reserved program is recorded without any omissions, the calculating means in the recording example may record the preceding and following portions of the recorded program for a short time.

In addition, at the end of the reservation, the calculation means (
The usability will be improved if it is possible to determine whether or not the reservation content can be realized in step 6), and if it is not possible, to inform the operator of this fact using the display section of the operation panel or the TV screen. The possibility of realization here means that the time from the end of recording to the start of the next recording is short, the time from the end of reservation entry to the start of the first recording, and the time required to rewind or fast forward. This means that there is not enough. In such a case, the information may be recorded on the magnetic tape as shown in FIG. 7 in the conventional manner.

Furthermore, in the above embodiment, it has been explained that all the means shown in FIG. It may be composed of

Furthermore, although the above explanation has been made regarding the case of a VTR, it goes without saying that the same effect can be achieved with a recording/reproducing device using other tape-shaped recording media such as a DAT or a disk-type device.

In the above embodiment, the amount by which the magnetic tape is fast-forwarded or rewound is determined by counting the pulses of the FG signal attached to the motor shaft of the capstan motor. By recording an index signal and counting the signal, the amount of fast forwarding or rewinding may be determined, and the amount of movement of a recording medium such as a magnetic tape before scheduled recording is performed, such as with a tape remaining amount detection mechanism. Any other method may be used as long as it can be determined.

[Effects of the Invention] As described above, the present invention enables the recording order on the recording medium at the time of completion of reservation recording to be arbitrarily specified, and during the reservation recording period, rewinding and rewinding of the recording medium according to the reservation contents.
Since the structure allows fast forwarding, the operator can arbitrarily specify the recording order on the recording medium, and the recording medium can be effectively utilized, resulting in an easy-to-use recording and reproducing apparatus.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a block diagram of a reservation recording section of a recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is a flowchart showing the operation of an embodiment of the present invention, and FIG. Fig. 3a is an explanatory diagram of the reservation contents of the embodiment, Fig. 3b is an explanatory diagram showing the recording state on the medium of the embodiment, Fig. 4 is a time chart of medium recording according to the embodiment, and Fig. 5 is a diagram of conventional recording. A block configuration diagram of the reservation recording part of the playback device, FIG. 6(a) is a diagram explaining conventional reservation contents, FIG. 6(b) is a time chart diagram of conventional reservation recording, and FIG. 7 is an explanation of the conventional recording state. It is a diagram. In the figure, (1) is the operation panel, (2) is the data processing means, (3) is the storage means, (4) is the timer, (5) is the sequence control means, (6) is the calculation means, and (7) is the is the FG signal,
(8) to (14) are each step of the flowchart. In addition, in the figures, the same calyx indicates the same or equivalent parts.

Claims (1)

[Claims] An input means for specifying the reservation recording order on the recording medium, an amount of movement of the recording medium required to record each reservation recording content specified by this input means, and an amount of movement after recording all the reservation recording contents. A recording/reproducing apparatus comprising a calculation means for calculating, a storage means for storing the calculation result of the calculation means, and a sequence control means for managing reserved recording based on the calculation value stored in the storage means.