JPH02230541A - Magnetic recording and reproducing device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention is directed to a magnetic recording/reproducing device (hereinafter referred to as VT) that can skip and reproduce a part of recorded video signals.
(denoted as R).

(Prior art) VTRs are equipped with a scheduled recording function.
When a program is recorded using this function, a large number of commercials that are aired during the program are recorded because the user does not manage the recording.

Therefore, in order to skip the commercial portion while playing back a recorded tape, the user must repeatedly switch between fast forward playback or cue mode and playback mode. This operation is extremely troublesome. One possible solution to this problem is to store time data such as 1 minute, 2 minutes, etc. in the memory of the VTR in advance, and the user to set the desired skip time by combining these data in advance. However, the time you want to skip,
The work of combining and setting time data is extremely difficult.
It takes time too.

(Problems to be Solved by the Invention) As described above, in conventional VTRs, in order to skip and play back a part of the content (for example, a commercial part) of the tape being played, it is necessary to perform an operation by the user. There are problems that make it very bothersome.

Therefore, this invention has developed the content of a part of the tape being played (
It is an object of the present invention to provide a magnetic recording/reproducing device that can skip commercials, etc.) with a simple operation and can be configured easily.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes a first mode control means that changes the operation mode from a playback mode to a fast-forward playback mode when a tape skip switch is operated; A tape running amount measuring means for obtaining data on the tape running amount (or a value proportional to the tape running amount) as a skip amount when fast-forward playback is being performed by the mode control means, and a storage means for storing a predetermined skip amount in advance. and determining means for determining whether the skip amount stored in the storage means matches the skip amount obtained from the tape running amount measuring means;
The apparatus includes second mode control means for switching the operation mode from fast-forward playback mode to playback mode based on the output from the determination means, and data setting means for setting a predetermined skip amount in the storage means. be.

(Function) By using the above means, when the user determines that an unnecessary portion is unnecessary during tape playback, if the user turns on the skip switch, the part is automatically skipped by the skip amount stored in the storage means. Therefore, it is easy to operate. Also, the skip amount can be changed freely, so there is a high degree of freedom.
It is also easy to set and change the skip amount.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows an embodiment of the present invention. In the figure, 11
is a mode setting switch for setting various modes of the VTR. The output of the mode setting switch 11 is introduced into a mode input/output circuit 12. Mode input/output circuit 1
2 controls the mode switching section 13 in accordance with the mode information from the mode setting switch 11, and sets the operation mode of the VTR. The operating modes are recording and playback. Fast-forward playback, rewind playback, and rewind playback. There are stop, slow play, still play, etc.

By the way, this VTR is provided with a skip switch 14 in order to allow the user to skip portions deemed unnecessary during tape playback. This skip switch 1
The output of No. 4 is supplied to a tape running time detection circuit 15. The tape running time detection circuit 15 has a skip switch 1
When the ON signal from 4 is input, information for setting the VTR to fast-forward playback mode is output, and the skip logic circuit 18
is supplied to the mode output circuit 12 through. This causes the VTR to enter fast forward playback mode. The running state of the tape running at this time (so-called skip state) is detected by the tape running detection circuit 16. The tape running detection signal is input to the tape running time detection circuit 15. The tape running time detection circuit 15 creates data (hereinafter referred to as the current skip amount) of the tape running amount (or a value proportional to the tape running amount) after the skip switch 14 is turned on, and sends this data to the skip logic circuit 18. The signal is supplied to the time detection circuit 19. In the skip state, the skip time detection circuit 19 compares and determines the current skip amount and data from the memory 20 (hereinafter referred to as pre-skip amount), and when the two match, sends the detection signal to the skip logic circuit 18. give. Then, the skip logic circuit 18 provides the mode input/output circuit 12 with mode information for obtaining the normal reproduction mode. This causes the VTR to shift from the skip state to the playback mode.

Generally, the commercial time during the broadcast of a program is
Once the time data, which is often a fixed time length and has a value sufficient to skip this length, is stored in the memory 20,
Thereafter, if the user turns on the skip switch 14 when a commercial appears, fast-forward playback (skip) will be automatically obtained. No user operation is required to end the skip.

Next, a method of storing the prefix skip amount in the memory 20 will be explained.

When storing the prefix skip 2, the user operates the memory switch 17. The point of time for this operation is preferably when a commercial starts in the normal playback mode, but is not necessarily limited to this time.

After turning on the memory switch 17, turn on the mode setting switch 11.
Operate the fast forward playback mode switch.

As a result, the VTR enters the fast-forward playback mode (the fast-forward playback mode may be automatically set by turning on the memory switch 17). Next, the user operates the playback mode switch of the mode setting switch 11, for example, when the commercial ends after viewing the screen, or after an arbitrary period of time has elapsed while viewing the timer.

In this case, data on the amount of tape travel (or a value proportional to the amount of tape travel) obtained from the tape travel time detection circuit 15 after turning on the memory switch 17 until playback starts again is used as the pre-skip amount. It is stored in the memory 20. Thereafter, as described above, the pre-skip amount stored in the memory 20 is used as comparison data for the current skip amount.

FIG. 2 shows the transition of the operation mode when the skip operation is performed. 4A shows a case where the skip switch 14 is operated when the pre-skip amount has already been stored in the memory 20, and FIG.
It shows the transition in the case of storing the pre-skip amount in the memory 20.

In the above description, an example was shown in which the first pre-skip amount is set by operating the memory switch 17, but the present invention is not limited to this, and the process may start by operating the skip switch 14. In this case, the pre-skip amount previously stored in the memory 20 is rewritten with a new skip amount. Therefore, the memory switch 17 is not necessarily required.

The present invention is further configured to be able to modify and change the pre-skip amount.

The operation for this purpose will be explained with reference to FIG. 3 as well.

That is, for example, when a commercial starts, it would be good to turn on the skip switch 14 to put it in a fast-forward playback state (skip state), and then switch to the playback mode when the commercial ends, but the switch is too quick and the commercial The program may start too late or go on too long. In such a case, the user can quickly decide by looking at the screen and then specify fast-forward playback mode, or specify rewind playback mode to rewind to the end of the commercial, and then specify normal playback mode. You can also.

FIG. 3 shows a case where the fast forward playback mode is switched to the normal playback mode even though the commercial has not ended. In such a case, the user can check the screen to confirm that the commercial has not ended. Therefore, the fast forward playback switch (or skip switch 14) of the mode setting switch 11 is operated again. If the time from time ■ to ■ in FIG. distance traveled). After this, when the normal playback mode is designated from the mode setting switch 11 as before, the current skip amount after the above addition is set as the pre-skip amount, and the memory 2
Store at 0.

FIG. 4 shows a case where the program is switched to the normal playback mode after the commercial period has passed and the program has progressed.

In such a case, the user can confirm that he has gone too far by looking at the contents of the screen. Therefore, the rewind mode is set via the mode setting switch 11. In this case as well, the skip logic circuit 18 performs an operation of subtracting the skip amount that will be obtained from now on from the current skip amount if the period from point ① to ① in FIG. 4 is within the predetermined period. Then, when the user operates the mode setting switch 11 to designate the normal playback mode at time (3) in FIG. 4, the skip amount at this time is stored in the memory 20.

In the above description, two examples of writing the prefix amount are shown in FIGS. 3 and 4. The explanation here is an example in which, after switching to the normal playback mode, if another mode setting switch is operated within a certain period of time, the mode shifts to the second fast-forward playback mode or the rewind playback mode. However, even at the second time, the timing of the operation may not match and the operation may go too far or fall short. In such a case, a more accurate pre-skip amount can be obtained by repeating the same operation. However, in order to prevent such operations from being unnecessarily repeated, a circuit for limiting the number of times of fast-forwarding and rewinding may be provided inside the skip logic circuit 18. Further, in the above description, the commercial portion is skipped as an example, but the present invention is not limited to this. Furthermore, it can be used for editing, etc. Further, the portion indicated by the broken line in FIG. 1 can also be realized by software using a microcomputer.

[Effects of the Invention] As explained above, according to the present invention, it is possible to skip part of the content (commercials, etc.) of the tape being played back with a simple operation, and the structure thereof can be easily realized.

[Brief explanation of the drawing]

FIG. 1 is a configuration explanatory diagram showing an embodiment of the present invention, and FIGS. 2 to 4 are operation explanatory diagrams shown to explain the operation of the apparatus of the present invention. DESCRIPTION OF SYMBOLS 11... Mode setting switch, 12... Mode input/output circuit, 13... Mode setting section, 14... Skip switch, 15... Tape running time detection circuit, 16...
...Tape running detection circuit, 17...Memory switch,
18...Skip logic circuit. 19... Skip time detection circuit, 20... Memory. Applicant's agent Patent attorney Takehiko Suzue

Claims (4)

[Claims] (1) A first mode control means that changes the operation mode from playback mode to fast-forward playback mode when a tape skip switch is operated; and a tape running when fast-forward playback is being performed by the first mode control means. (or a value proportional to the tape running amount) as a skip amount, a storage means for storing a predetermined skip amount in advance, and a predetermined skip amount stored in the storage means. , a determining means for determining a match with the skip amount obtained from the tape running amount measuring means; and a second mode control means for switching the operation mode from a fast-forward playback mode to a playback mode based on the output from the determination means. . A magnetic recording and reproducing apparatus, comprising: data setting means for setting a predetermined skip amount in the storage means. (2) The data setting means has a tape skip amount setting switch, and after turning on this switch, the tape running amount (or tape running amount 2. The magnetic recording and reproducing apparatus according to claim 1, wherein data of a value proportional to . (3) If the data setting means is set to the playback mode by the operation switch after the tape skip switch is turned on but before the matching judgment output is output from the judgment means,
Claim characterized in that data of the amount of tape travel (or a value proportional to the amount of tape travel) from when the tape skip switch is turned on until the time of transition to the playback mode is supplied to the storage means as a new predetermined skip amount. 2. The magnetic recording and reproducing device according to item 1. (4) Even if the operation mode is switched to the reproduction mode by the second mode control means, the data setting means may turn on another mode operation switch before the duration of this reproduction mode reaches a predetermined length. When the tape is run or stopped by being turned on, the tape position changes from the tape position when the tape skip switch is first turned on to the tape position when the other mode operation switch is turned on and the playback mode is set again. 2. The storage means according to claim 1, wherein the data of the substantial tape running amount in one direction (or the value proportional to the tape running amount) up to that point is supplied to the storage means as a new predetermined skip amount. Magnetic recording and reproducing device.