JP2711281B2 - Playback device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial application field) The present invention relates to a reproducing apparatus such as a video tape deck or a cassette tape deck. (Related Art) In a reproducing apparatus of this type, it is possible to reproduce a recorded image or recorded music by operating a play key after mounting a tape to set a tape play mode. Then, the play mode is canceled by automatically stopping the tape running at the end of the tape or by operating a stop key or the like. When the user wants to play back the reproduced image or music continuously again, the user usually operates the fast rewind key to rewind the tape, confirms the start position as the play state, and if the position is acceptable, the play mode is continued. And if it is not good, the fast forward key or the fast reverse key is operated to set it to a desired position and the reproduction is performed again. In addition, a cassette deck or the like that can reproduce endlessly the recorded information of the tape on the front and back sides by an automatic reversing function is provided. (Problems to be Solved by the Invention) In the above-described conventional reproducing apparatus, when the reproduced information is to be reproduced continuously again, the head of the information is manually set, and when the turning point is reached. It is necessary to perform the head search again after the fast rewind operation, and to repeat the reproduction, it is necessary to repeat the above operation. Therefore, it is necessary to perform the key operation of the deck each time, and the work of confirming the head is required, which is extremely complicated. Also, with repeated playback using the auto reverse function,
Since all of the front and back sides of the cassette will be reproduced,
It has been impossible to repeatedly reproduce only a desired portion or a desired portion. Therefore, an object of the present invention is to solve the above-described conventional problems, and to improve the recording information of a cassette tape.
By first registering the operation of repeatedly playing back only the part that you want to see or hear, the playback operation is automatically repeated thereafter, and block playback in extremely short sections is prohibited to reduce the load on the playback drive unit. It is an object of the present invention to provide a reproducing apparatus with a reduced number of failures. [Structure of the Invention] (Means for Solving the Problems) The present invention reproduces information recorded on a tape, and
In a playback device having a tape counter, at least a play mode of the tape, a playback drive unit that executes fast-forward and fast-forward drive, and an operation key for key-inputting a start point and a return point of block playback during the tape play mode, A memory for storing the tape count value at the start point and the return point; and when the tape count value at the return point is reached, controlling the reproduction drive unit to drive the tape backward, and counting the tape at the start point. A block playback control unit that controls the playback drive unit to repeatedly enter the play mode when the value reaches the value, and the block playback unit uses the operation keys to input the key at the start point. After that, based on the information from the tape counter, from the tape count value at the start point, The added count number n (n is an integer of 1 or more) is monitored and compared with a predetermined count number N based on the load of the reproduction drive unit when the block reproduction control is performed. When ≤N, when the input of the return point by the operation key is made, the input of the return point is invalidated. (Operation) When the key in of the start point of the block reproduction is executed during the play mode, the tape count value at the start point is stored in the memory. Thereafter, when there is a key-in of the return point of block reproduction, the tape count value of this return point is similarly stored in the memory, and the block reproduction registration mode ends. When there is a key-in at the return point, the block playback control unit controls the tape to rewind from the return point to start block playback, and starts playback in this section as a play mode when returning to the start point. By repeatedly performing this operation, block reproduction in a predetermined section can be repeatedly performed. Moreover, according to the present invention, the count number n (n is an integer of 1 or more) that increases from the tape count value at the start point is monitored based on the information from the tape counter, and is compared with the predetermined count number N. When a return point is input by the operation keys when n ≦ N, the input of the return point is invalidated. Here, the counted number N to be compared
Is predetermined based on the magnitude of the load on the reproduction drive unit when the block reproduction control is performed, and is, for example, 10 counts. Therefore, block reproduction is not repeatedly performed in an extremely short block reproduction section, and device failure can be reduced. As described above, when an extremely short block reproduction section is designated, the input of the return point is invalidated, so that the block reproduction registration mode is continued, and the operator only has to try to input the return point again. Therefore, as compared with the case where the input is once accepted and the block reproduction itself is invalidated and the operation is started from the beginning, the trouble of searching for the start point again can be omitted, and the burden on the operator can be reduced. (Embodiment) An embodiment in which the present invention is applied to block reproduction of a video tape recorder will be described below with reference to the drawings. FIG. 1 is a block diagram for realizing a block reproduction function of the embodiment device, and FIG. 2 is a front view of a front panel of the embodiment device. Of the keys shown in FIG. 2, an enter key 1 is an operation key for inputting a start point and a return point for block reproduction, and a play key 2 and a fast forward key (hereinafter referred to as FF key). Various keys such as a fast-return key (hereinafter, also referred to as a REW key) 4, a stop key 5, a display, an indicator, and the like are arranged. The block playback control unit 10 for inputting the key-in information of the various keys controls a block playback operation based on the key-in information.
A tape counter 20 for counting a tape count value in accordance with tape running; a memory 30 for storing the tape counter values at a start point and a return point of block playback; a playback drive for executing play, fast forward, fast rewind or stop drive of the tape The unit 40 is connected. Next, the operation of the video tape recorder configured as described above will be described with reference to the flowchart of FIG. First, the block reproduction registration mode will be described. This mode can be accepted only during tape play. Therefore, the block reproduction control unit 10 first determines whether or not the tape play mode is set (step 1). Perform the operation of If there is a key-in of the enter key 1 during this play mode (step 2), the block reproduction control unit 10 recognizes the tape count value at this time from the tape counter 20, and recognizes this value as the start point of the block reproduction. It is stored in the memory 30 as a tape counter value (step 3). Then, the block playback control unit 10 immediately controls the drive of the playback drive unit 40 to fast-forward the tape (CUE operation).
Set to. At this time, since the counter operation of the tape counter 20 continues as usual, the counter value increases (step 5). Thereafter, the mode is set to the registration mode of the return point of the block reproduction. Since the registration of the return point can be received only in the play mode, the block reproduction unit 10 determines whether or not the play mode is set (step 7). ), The second key-in of the enter key 1 is accepted only in the play mode. In this way, the reason that the return point can be accepted only in the play mode is that the return point is normally searched by looking at the screen during the play operation, and if the return point can be accepted in the fast forward state, After the return point is accepted, the fast-return operation is started immediately as described later, and if this is allowed, the load on the mechanism of the reproduction drive unit 40 increases. Here, when the mode is not the play mode, acceptance of the enter key 1 is prohibited. In this case, the play mode is set by operating the play key 2 after the fast forward operation, but the desired return point has not yet been reached, so that the fast forward state is set, or the tape end or stop key 5 This is the case where the tape running is stopped by the operation. Then, if it is not the play mode, then the current mode is the CUE mode (in this embodiment, the fast forward mode).
Is determined (step 7). If the mode is the CUE mode, the process returns to step 5 to have the play mode again. On the other hand, when the tape running is stopped, the block reproduction registration mode is released, and the process returns to step 1. When the play mode is confirmed in step 6, it is determined whether or not the enter key 1 is keyed in (step 8). If there is no key-in of the enter key 1, the process returns to step 5, and if there is a key-in of the enter key 1, it is determined whether or not the key-in of the enter key 1 is accepted (step 9). That is, the block reproduction control unit 10 constantly monitors the tape count number sequentially input from the tape counter 20 from the tape count value at the start point, and within a predetermined count number, for example, 10 counts, from the tape count value at the start point. If there is a key 1 key-in,
The key-in of the enter key 1 is invalidated, and the operation is performed so as not to recognize the input of the return point. The reason is that if the count value difference between the start point and the return point is as short as 10 counts or less, for example, if block playback is executed during this time, the play mode and the fast reverse mode will be repeated in a short time, This is because the load on the reproduction drive unit 40 is extremely large, which may cause a device failure. Only when the determination in step 9 is Yes, the input of the return point is accepted, and in this case, the block reproduction control unit 10 stores the tape count value of the return point in the memory 30 (step Ten). With the above operation, the block reproduction registration mode ends. Thereafter, the block playback control unit 10 controls the drive of the playback drive unit 40 and immediately starts the block playback operation from this return point. That is, the block playback control unit 10 includes a playback drive unit.
By controlling the drive of 40, a rewind operation is started from the return point (step 11), and this operation is continued until the tape count value of the start point registered previously is reached (step 12). Then, the block reproduction control unit 10
When the tape count value at the start point is reached, the drive of the playback drive unit 40 is controlled to set the play mode, and the repeated playback from the start point is started (step 13). Thereafter, except for the case where the stop key 5 is operated in step 14 and the block reproduction mode is released, the block reproduction control unit 10 determines whether or not the tape count value has reached the value of the return point (step 14). 15) If not reached, the play mode is continued. If reached, the process returns to step 11 to drive-control the fast-return operation to the start point. Thereafter, block reproduction is repeatedly executed between the start point and the return point. As described above, according to the present embodiment, after the start point and the return point of the block reproduction are registered in the block reproduction registration mode, the block reproduction is automatically repeated between the start point and the return point. Playback can be performed, and the load required for the operation is greatly reduced as compared with a conventional apparatus that performs the same operation manually. It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention. For example, in the above-described embodiment, in the block reproduction registration mode, the reception of only the play key 2 or the F / F key 3 is permitted and the reception of the REW key 4 is prohibited. Since the value may be lower than the value of the start point, it is uniformly prohibited. However, as a function of the block reproduction control unit 10, when the value of the tape counter falls below the value of the start point,
If this block reproduction registration mode is released, the REW key 4 can also be used. In real operation,
When the return point is searched for, the tape may be fed too far. Therefore, in such a case, it is considered that the tape needs to be returned with the REW key 4 in many cases. Therefore, it can be expected that operability will be improved by allowing the reception of the REW key 4 in this way. In the block reproduction registration mode, the CUE operation is performed immediately after the start point is keyed in. However, the operation is not necessarily limited to the CUE operation.
For example, in the first reproduction operation, reproduction is performed in the normal play mode, and a return point may be searched during the reproduction. Therefore, the play mode is maintained after the start point is input, and the F.F. A means for receiving the F key 3 and quickly finding a return point may be secured. Various methods can be adopted as the key-in method of the start point and the return point. The key-in method is not limited to the method of inputting the same key twice as in the above embodiment, but may be a method using different keys. [Effect of the Invention] As described above, according to the present invention, a section of only a part to be seen or a part to be heard is registered by a simple operation,
Thereafter, a block playback function of automatically repeating playback in this section can be realized, and the burden on the operator can be greatly reduced as compared with the case where similar playback is performed by a conventional device. In addition, since input of a return point designating an extremely short block playback section is invalidated, device failure can be reduced. When an extremely short block playback section is specified, the input of the retain point is invalidated.
The operator has only to try inputting the return point again, and the burden on the operator is reduced as compared with the case where the input is once accepted and the block reproduction itself is invalidated.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a configuration relating to block reproduction according to an embodiment in which the present invention is applied to a video tape recorder. FIG. 2 is a front view of a front panel of the apparatus shown in FIG. FIG. 3 is a flowchart for explaining a block reproducing operation of the apparatus of FIG. 1 ... Enter key, 2 ... Play key, 3 ... Fast forward key, 4 ... Fast rewind key, 5 ... Stop key, 10 ... Block playback controller, 20 ... Tape counter, 30 ... Memory, 40 ... Reproduction drive unit.

Claims (1)

(57) [Claims] In a playback device that plays back information recorded on a tape and has a tape counter, at least a playback drive unit that executes a play mode, fast reverse and fast forward drive of the tape, and a start point of block playback during a tape play mode and An operation key for key-inputting a return point, a memory for storing the tape count value of the start point and the return point, and controlling the reproduction drive unit when the tape count value of the return point is reached to control the tape. And a block playback control unit that controls the playback drive unit to repeatedly control the operation of setting the play mode when the tape count value at the start point is reached, and the block playback unit. After the key input of the start point by the operation key, based on information from the tape counter, The count number n (n is an integer of 1 or more) that increases from the tape count value at the start point is monitored, and the count number is predetermined based on the load of the playback drive unit when the block playback control is performed. A reproducing apparatus, wherein the input of the return point is invalidated when the return point is input by the operation key when n ≦ N, as compared with the count number N. 2. The block playback control unit controls the playback drive unit to fast-forward drive the tape when there is a key input at a start point, and receives a key input at a return point after a subsequent play mode. 2. The playback device according to claim 1, wherein: 3. 2. The reproducing apparatus according to claim 1, wherein the block reproduction control unit receives an input of a play key and a fast-forward key before reaching a play mode for inputting a return point. 4. Before reaching the play mode for inputting a return point, the block reproduction control unit accepts inputs of a play key, a fast-forward key, and a fast-reverse key, and when the operation of the fast-reverse key causes the value to fall below the tape counter value at the start point. 2. The reproduction apparatus according to claim 1, wherein the block reproduction registration mode is canceled.