JPS59110081A - Tape recorder controller - Google Patents

Abstract

PURPOSE:To position accurately a tape all the time by providing the 1st operation control means which correct position information on the tape stored in a storage part and the 2nd operation control means which moves the 1st tape position information displayed on a display part to the 2nd position information. CONSTITUTION:When an optional point (A) is stored, the 1st display part 23 displays the position information on the tape shown by A once a head 6 reaches the position indicated by A. At this time, when the 1st storage switch 24 is operated, a control part 17 discriminates that the 1st storage switch 25 is operated and stores the position information on the tape displayed on the 1st display part 23 in the 1st storage area 21. When the 1st search switch 27 is operated at an optional point, the control part 17 confirms that the 1st search switch 27 is operated and displays the position information on the position A stored in the 1st storage area 21 on the 2nd display part 24.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape recorder control device that performs all operations such as positioning a tape mounted on a tape recorder.

There are two methods for determining the position of a tape mounted on a conventional tape recorder. The first method is a time code method. That is, this is a method using a so-called time code, in which the time of recording is coded and simultaneously recorded on a dedicated track, separately from the image and audio tracks recorded on the tape.

According to this method, since the tape itself has absolute position information @i, when searching for an arbitrary position on the tape, the previously recorded time code can be used as a clue, and the tape can be edited. becomes easier. However, when recording or recording, a time code generator, reading device, etc. are required, and a dedicated track for time code is required, which reduces the effective utilization rate of the tape. I can't say that. The second method is to use a counter roller.

That is, a counter roller that rotates as the tape runs is provided on the running path of the tape recorder, and the rotation of the counter roller is detected and counted to specify any position on the tape. This method is used in general tape recorders and is a simple method. However, since the tape itself does not have absolute position information, slipping may occur between the tape and the counter roller. This causes the relative position to shift and the previously stored position information to become meaningless.

Furthermore, even if the display 85 that displays the tape position information is reset to zero, the previously stored position information becomes meaningless, and work efficiency deteriorates, especially when editing the tape. .

The present invention has been made in view of the above-mentioned circumstances, and when the tape position information displayed on the display section 5 deviates from the actual tape position, it can be easily corrected. Another object of the present invention is to provide a tape recorder control device in which the position information stored in @ does not become meaningless.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. The drawing is a schematic explanatory diagram of a tape recorder control device that is an embodiment of the present invention. In the drawing, the tape 1 is connected at one end to a supply reel 2 and at the other end to a counter roller 4.
The head 6 and the capstan shaft 5 are respectively wound around a take-up reel B. The supply reel 29 and the take-up reel 6 are respectively rotated by the drive of a reel motor 7.8. Further, the capstan shaft 5, which causes the tape 1 to run at a set speed, is rotated by the drive of the capstan motor 9. A disk 10 having a detection element 11 is attached to the lower end of the counter roller 4, and rotates as the tape 10 runs. 12 is an operation control device for running the tape 1. This operation control device 12ri is interlocked with a PIA 60, which will be described later. Next, the configuration of the tape recorder control device 13 will be explained.

The tape recorder control device 16 includes a storage section 14, a display section 15 for displaying tape position information. An operation switch section 16 including various operation switches, and a storage section 14. Display m
15 + operation switch f's 16 - a control unit 17 that controls the operation control device 12 and the like in association with each other. The storage unit 14 includes a program area 20. 1st
Storage area 21. It consists of a second storage area 22,
The display section 15 includes a first display section 23. Second display section 2
The operation switch section #J consists of a reset switch 18, a correction switch 19. First memory switch 25
゜Second memory switch 26. First search switch 27
, i2 search switch 28. Also, the control section 1
7 is composed of a microprocessor unit (hereinafter referred to as MpU) 29 and a peripheral control adapter (hereinafter referred to as PIA) 30.

Next, details of the tape recorder mIJ control device 13 will be explained. The MPU 29 operates according to the program stored in the storage unit 14, counts the signals from the detection element 11 via the PI 450, displays tape position information on the display unit 15, and controls the operation switch unit 16. , to determine which operation switch has been operated. Further, depending on the function of the operated operation switch, the tape position information displayed on the display unit 15 is stored in the memory i141C, or the control device 12 is
! l), reel motor 7.8. The tape 1 is positioned by controlling the capstan motor 9, a braking device (not shown), a tape tension control device, etc. (not shown). P.I., 45
0 is the detection element 1 in order to count the rotation of the tape 1.
1 receives an output pulse and transmits it to the MPU 29, and also outputs the output pulse from the display section 13.1 of the operation control device 121. It serves as an interface between the operation switch section 16 and the MPU 29. The storage unit 14 includes a program storage area 20 that stores programs for the MPU 29, and a V area that stores tape position information.
The first step to read. It consists of a second storage area 21 and 22. Display section 15r; a first display section 23 that displays the current tape position information obtained as a result of counting the output signal from the tb detection element 11 via the control s17; It is composed of a second display unit 24 that reads and displays position information.

The operation switch section 16 displays the tape position displayed on the first display section 26 at the first. Second storage area 21.
first and second storage switches 25. There is '26. When each storage switch is operated, the tape position information displayed on the first display s23 is stored in each storage area. Also, the second search switches 27 and 28 are connected to the first search switch 27 and the second search switch 27, 28, respectively. It corresponds to the second memory switch 25°26TL, and each search switch 27.
If you operate 28, you can store a in each storage area 21.
The stored tape position information sound is read out and the tape position information is displayed on the second display section 24, and the current tape position information displayed on the first display section 23 is displayed on the second display section 24. The tape 1 is run so as to match the tape position information displayed on the section 24. The reset switch 18, which is the first operation control means, is connected to the first display section 26.
is set to zero (reset), and the information displayed on the first display section 23 before operating the reset switch 18 is determined based on the tape position information stored in each storage area 21 and 22 along with the reset. Subtract the value corresponding to the position information of the tape, and then re-enter the value in the Tanigi self-memory area 21.22.
It is something that makes oneself proud.

The correction switch 19, which is the second operation control means, changes the position of the tape displayed on the second display section 24 when a slip or the like occurs between the tape 1 and the counter roller 4 and the tape position information deviates. The position information is moved to the first display section 26 to correct the positional deviation of the tape.

The operation of the tape recorder control device configured as above will be explained.

First, a method for storing arbitrary points A and Bf on the tape 1 will be explained. If the operator puts the tape recorder in the playback mode, he or she can know the contents recorded on the tape 1 by monitoring the output signal of the head 1. Here, when it is desired to store an arbitrary point (referred to as A) and the position indicated by the AVC coincides with the head 6, the tape position information shown on the first display section 23ViA is displayed. At this time, if the first memory switch 24 is operated, the control unit 17
determines that the first storage switch 25 has been operated, and stores the tape position information displayed on the first display section 26 in the first storage area 21. Similarly, B
When the position shown in 2 coincides with the head 6, by operating the second storage switch 26, the tape position information is stored in the second storage area 22Kg.

Next, A, H stored in each storage area 21.22 first.
This section explains how to read the tape position information. If the first search switch 27'fr is operated at any time, the control unit 17 will confirm that the first search switch 27 has been operated, and will search for A stored in the first storage area 21. Tape position information is displayed on the second display section 24. Then, the control unit 17 compares the numerical value on the first display unit 23 displaying the current tape position information with the numerical value on the second display unit 24 displaying the position information of tape A. , A is located on which side with respect to the head 6. Thereby, the control m17 controls the motion control device 12'e and the reel motors 7.8. When the capstan motor 9 and the braking device (not shown) are operated, the tape is caused to travel in the direction of arrow 61 or 62, which is displayed on the first display section 23 and the second display section 24. When the position information matches, the tape is stopped running. Similarly, when the second search switch 2B is operated, the position information of the second storage area 22 that stores the tape position information @j shown in B is displayed on the second display section 24, and the tape position information @j is displayed on the second display section 24. then drive in the direction of arrow 61 or 62, and
When the tape position information displayed on the second display section 23 and the second display section 24 match, the running of the tape is stopped.

Next, for some reason, counter roller 4 and tape 1
A method (the second operation control means) for correcting the discrepancy when the tape position information is misaligned due to slippage will be described.

After arbitrary points A and B are stored in each storage area 21 and 22, the base point of the tape position information is shifted due to a slip or the like, so A and B move to C1D, respectively. To correct this deviation of the base point, the first search switch 27 is operated at the beginning of a1. The second display section 24 displays the position information of A before the deviation of the base point occurs. However, tape 1 stops at C. Now, operate the tape recorder, monitor and look for Af, and the position shown in A is head 6.
Move the tape so that it matches. At this time, the first
Display section 23'l'! : indicates position information different from that of the second display section 24. Here, modify switch 19
When the user operates , the control section 17 moves the position information on the second display section 24 to the first display section 26 . This will correct the base point deviation. At the same time, the position information of B also becomes valid.

Next, a method for resetting the first display section 23 (the first operation control means) at any time will be explained. This makes it possible to read out A and B previously stored in each of the storage areas 21 and 22 by using each of the search switches 25 and 26 even if the first display section 23 is reset. That is, when the reset switch 18 is operated at any time, the first display section 23Fi zero is displayed. However, the control unit 17 controls the reset switch 18
The numerical value of the position information on the first display section 26 before operating the
After subtracting the numerical value of the tape position information stored in each storage area 21 and 22,
, 22. As a result, even after resetting, the tape position information stored in advance remains valid.

The present invention is not limited to the 111th embodiment,
It goes without saying that the present invention includes various modifications within the scope of the present invention. For example, the output signal 'f: PIA'r O' (i =
29 and the storage section 14, and the counting results were displayed on the display section 15 by the storage section 14, the MPU 29, and the PIA'50.
30 may be read by the MPU 29 as necessary. Further, in this embodiment of the present invention, only two storage areas, two storage switches, and two search switches are provided, but it would be convenient to increase the number. Further, a display or the like may be provided to display whether or not the tape position information is currently stored. Further, although the display section 15 has a first display section 26 and a second display section 24, it may be configured with one display section. That is, normally, the current tape position information is displayed, and for several seconds after the search switch is operated, the position information of the tape to be read is displayed.

According to the present invention described in detail above, even if a deviation occurs in the tape position information, it can be easily corrected and the tape can always be accurately positioned. Furthermore, by operating the reset switch, any position can be set to zero, so the length of the recorded content recorded on the tape and the time relationship with other recorded content can be easily known. Therefore, a series of operations such as tape editing become smoother, and efficiency can be greatly improved.

[Brief explanation of drawings]

The drawing is a schematic explanatory diagram of a tape recorder control device that is an embodiment of the present invention. 1...tape, 6...head, 11...
Detection element, 12... Operation control device, 13... Tape recorder control device, 14... Storage unit, 1
5...Display section, 16...Operation switch section, 17
...Control unit, 29...MPU, 30...
plA 0

Claims (2)

[Claims] (1) A storage unit that stores tape position information, a display unit that displays tape position information, an operation switch unit that includes a plurality of operation switches, and the storage unit. In a tape recorder control device that includes a display section, an operation switch section, and a control section that performs all controls of the tape recorder, and performs tape positioning etc. based on tape position information stored in the storage section, one of the above-mentioned displays can be changed by an external operation. a first step of resetting the tape position information displayed on the display unit and correcting the tape position information stored in the storage unit based on the tape position information displayed on the display unit before resetting; and a second operation control means for moving the position information of the first tape displayed on the display svc to the second position information by an external operation. Recorder control device. (2) The first operation control means is a means for correcting previously stored position information by a microprocessor unit even if the display unit is set to zero (reset);
2. The tape recorder control device according to claim 1, wherein the operation control means is means for correcting discrepancies in tape position information using a microprocessor unit.