JPH0330932B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a tape recorder control device for positioning a tape mounted on a tape recorder. More specifically, the present invention relates to a tape recorder control device that efficiently performs tasks such as editing a tape loaded in the tape recorder.

[Background of the Invention] Conventional tape recorder control devices include those disclosed in, for example, Japanese Utility Model Application No. 57-83586, Japanese Patent Application Publication No. 56-140570, and Japanese Patent Application Publication No. 57-71559. Ta. These tape recorder controllers number the tapes loaded in the tape recorder consecutively along their length (for example, the numbers are displayed in hours, minutes, and seconds), and This is used to position the tape mounted on the tape recorder. In other words, for example, if you know the current hour, minute, and second position of the signal being played, and you specify the hour, minute, and second position at which the tape should be positioned, then After examining the relationships, you can control the tape recorder and fast forward and rewind the tape.
This is a tape recorder control device that performs playback or a combination of these to position the tape. Furthermore, conventional tape recorder control devices store a large amount of tape position information (10 to 20 points) for tape positioning, etc., and can call it up at any time as needed to automatically position the tape. It is very effective for editing tapes, finding the beginning of tapes, etc.

[Problems with background technology]

However, conventional tape recorder control devices simply find a specified tape position and stop the tape. In other words, in video tape recorders and optical film with rotating heads, even when the tape is stopped, the contents of the signals recorded on the tape can be directly understood as still images, but the contents of the signals recorded on the tape cannot be recorded. In a general tape recorder, once the tape has stopped running, nothing is being played back, so there is no way to understand the contents of the signals recorded on the tape other than by running the tape for playback. Therefore, even after positioning the tape, it is necessary to manually operate the tape recorder to perform playback, rewinding, etc., and check the recorded contents. Also, even if you position the tape once, as you repeat fast forwarding and rewinding,
There are disadvantages such as the tape being wound onto one reel or coming off the counter roller, which causes the position of the tape that should be corrected to be significantly shifted. had the disadvantage that the condition of the tape loaded in the tape recorder had to be constantly monitored.

[Purpose of the invention]

The present invention has been made in view of the above circumstances, and has a structure in which the contents of the tape can be checked immediately even when the tape is positioned, and furthermore, all the tapes loaded in the tape recorder are wound onto one reel. It is an object of the present invention to provide a tape recorder control device that prevents the position of the tape from shifting, and furthermore, prevents the position of the tape from shifting indefinitely from the position of the tape.

[Configuration of embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic explanatory diagram of a tape recorder control device that is an embodiment of the present invention. In the figure, 1 is a tape recorder. The tape 2 is wound around a supply reel 3 at one end and a take-up reel 4 at the other end via a counter roller 5, a head 6, and a capstan shaft 7. The supply reel 3 and take-up reel 4 are rotated by reel motors 8 and 9, respectively. Further, the capstan shaft 7, which runs the tape 2 at a predetermined speed, is rotated by the drive of a capstan motor 15. An encoder 11 having a number of slits 10 around its circumference is installed at the lower end of the counter roller 5, and is adapted to rotate together with the counter roller.
Then, by detecting the rotation of the encoder 11 using the detection element 12 or the like, the running of the tape 2 can be detected. Note that the means for detecting the running of the tape 2 is not limited to the encoder 11, but may also detect the rotation of the reel motors 8 and 9. The head 6 is for reproducing the signal recorded on the tape 2, and the signal can be taken out from the output terminal 14 via the amplifier 13. Note that the tape recorder 1 may include a recording head, an erasing head, and other amplifiers in addition to the head 6, but these are omitted in FIG. 16 is a transport control for controlling the tape recorder 1; This controls the reel motors 8 and 9, the capstan motor 15, a device related to tension control, a braking means, etc. (not shown), and determines the running state of the tape 2. The running states of the tape 2 include stop, playback running state, and fast winding state (rewinding and fast forwarding states). The transport control 16 controls each component of the tape recorder 1 using control signals sent from a peripheral control adapter (hereinafter abbreviated as PIA) 17, the details of which will be described later, via a control bundle line 18. In response to
Send to PIA17. Reference numeral 19 denotes a tape running detection section, which sends a signal detecting the running of the tape 2 according to the rotation of the encoder 11 detected by the detection element 12 to the PIA 17 via the signal bundle line 20.

Next, the configuration of the tape recorder control device 21 will be explained. The tape recorder control device 21 includes a storage unit 2
2. Operation switch section 2 including various operation switches
5. Display unit 26 that displays tape position information, display/switch input control unit 27, PIA 17, microprocessor unit 29 (hereinafter referred to as MPU)
and a data bundle line 28 that transfers these data.
It consists of The storage unit 22 is a read-only area (hereinafter referred to as
It consists of a read/write area (hereinafter referred to as RAM) 23 for storing tape position information and numerical values necessary for control. The display/switch input control section 27 causes the display section 26 to display the position information of the tape on the data bundle line 28, and also determines which switch has been operated on the operation switch section 25, and outputs the information as data to the data bundle line 28. This is what is output to. PIA17
, which interfaces the tape running detection section 19, the transport control 16, and the MPU 29. The MPU29 operates according to the program stored in the ROM24, and the PIA17
, the signal from the tape running detection section 19 is counted, the tape position information is displayed on the display section 26, and the operation switch section 25 determines which operation switch has been operated. Furthermore, depending on the function of the operated operation switch, the tape position information displayed on the display section 26 is stored in the RAM 23, or the reel motors 8, 9, cap stun motor 15 and
The positioning of the tape 2 is performed by controlling a braking device, a tape tension control device, etc. (not shown).

FIG. 2 shows an embodiment of the operation switch section 25 and the display section 26. As shown in FIG. In the figure, 30A is a storage operation switch group for storing tape position information in the storage section, and is composed of, for example, six storage operation switches 30, 31, 32, 33, 34, and 35. The current tape position information displayed on the display section 26 when each storage operation switch is operated can be stored in the RAM 23 shown in FIG. 36 is an erase switch, RAM1
The tape position information stored in 3 can be erased. That is, by operating the erase switch 36 and each storage operation switch at the same time, the tape position information stored in correspondence with each storage operation switch is erased, making preparations for storing the position information of another tape. 37A is a group of positioning operation switches, for example, six positioning operation switches 37, 3.
8, 39, 40, 41 and 42. Each positioning operation switch corresponds to each storage operation switch, and reads the tape position information stored in the RAM 23 by each storage operation switch, and also controls the transport via the PIA 17 shown in FIG. 16 to position the tape 2. 4
Reference numeral 3 is a numeric switch that displays an arbitrary number on the display section 26 that displays tape position information. Each of the positioning operation switches is displayed on the display section 2.
Each digit of 6 44, 45, 46, 47, 48 and 49
If the number switch 43 and each positioning operation switch are operated simultaneously, the number displayed in each corresponding digit can be changed. 50 is a reset switch, and the display section 2
6. The displayed contents and the tape position information stored in the RAM 23 can be set to zero. Reference numerals 51 and 52 are guard setting switches, which determine the running range of the tape 2. Reference numeral 53 denotes a repeat setting switch, and by operating it at the same time as the storage operation switch group 30A, it is possible to repeatedly reproduce between any two points. 54 is a mode selection switch, which selects and sets the operation of the tape recorder 1 in FIG.
It consists of switches for recording, playback, stop, rewind, fast forward, etc., depending on the driving condition.

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

First, the operation of the memory operation switch group 30A will be explained. If the tape recorder is in a playback state, the contents recorded on the tape 2 can be known by monitoring the output signal of the head 6. Here, when it is desired to memorize an arbitrary position on the tape 2 and the arbitrary position coincides with the head 6, one of the storage operation switch group 30A,
For example, the memory operation switch 30 is operated. By this operation, the display/switch input control unit 27 notifies the MPU 29 via the data bundle line 28 which switch has been operated. When the storage operation switch 30 is operated, the MPU 29 changes the tape position information displayed on the display unit 26 to correspond to the operation.
Store it in the storage area of RAM23. The same applies to other memory operation switches.

Next, the erase switch 36 erases the tape position information in the storage area of the RAM 23 corresponding to each storage operation switch. That is, if the erase switch 36 and one of the storage operation switch group 30A are operated at the same time, the MPU 29 erases the tape position information in the RAM 23 corresponding to the operated storage operation switch.

Next, the operation of the positioning operation switch will be explained.
Each positioning operation switch corresponds to each storage operation switch, and reads out the tape position information stored in advance and brings the tape 2 to that position. That is, for example, when the positioning operation switch 37 is operated, the display/switch input control section 27 notifies the MPU 29 via the data bundle line 28 which switch has been operated. MPU29
reads out the tape position information previously stored in the RAM 23 by the storage operation switch 30 corresponding to the positioning operation switch 37, and displays it and the display unit 2.
Compare with the current location information displayed in 6. If they are different, the MPU 29 first determines the direction in which the tape 2 should run, and then the PIA 17
The tape 2 is moved in the direction of arrow F or R by controlling the transport control 16 via the control bundle line 18 and operating the reel motors 8 and 9, the capstan motor 15, and a braking device (not shown). The tape 2 is run so that the tape position information read from the RAM 23 matches the current tape position information. The same applies to other positioning operation switches.

Next, the operation of the numeric switch 43 will be explained. The numeric switch 43 provides another function to the positioning operation switch section 37A. The positioning operation switches 37, 38, 39, 40, 41, and 42 correspond to the respective digits 44, 45, and 45 of the display section 26, respectively.
46, 47, 48 and 49. When one of the positioning operation switches 37A is operated after operating the numeric switch 43, the display section 2
The numerical value of the corresponding digit of 6 can be changed arbitrarily. That is, when the user wishes to change the numerical value of any digit on the display section 26, by operating the positioning operation switch corresponding to that digit, the numerical value displayed at that digit changes sequentially from 0 to 9, and any numerical value can be selected. Thereby, arbitrary tape position information can be set, and it can also be stored in the storage means. Here, when one of the numeric switch and the positioning operation switch group 37A is operated, the display/switch input control section 27 transmits the operated switch to the MPU via the data bundle line 28.
Tell 29. The MPU 29 performs the function of the numeric switch 43 described above.

Next, the operation of the reset switch 50 will be explained. When the reset switch 50 is operated, the display/switch input control section 27 transmits the operated switch to the MPU 29 via the data bundle line 28.
The MPU 29 sets the display on the display unit 26 and the tape position information stored in the RAM 23 to zero. This allows the operator to set a new reference point for performing the next tape edit.

Next, the functions of the guard setting switches 51 and 52 will be explained. For example, the guard setting switch 51 is operated when the beginning of the signal recorded on the tape 2 passes through the head 6, and the guard setting switch 52 is operated at the position on the tape where the signal ends. Through the above operations, the MPU 29 stores the tape position information in the storage area of the RAM 23 corresponding to each guard setting switch when each guard setting switch is operated. As a result, the running range of the tape 2 is determined by the guard setting switches 51 and 52.
Only within the tape position interval set in . Therefore, both ends of the set tape running range become running range limit positions. When the current tape position displayed on the display section 26 is outside the above-mentioned section, it is possible to enter the inside of the section by normal tape running, but when the tape position is within the section, the tape is It is not possible to go outside the section in playback or fast-winding mode (including repeat mode). That is, even if the tape recorder is left unattended in a fast-winding state inside the section, if the tape 2 reaches the guard point set by the guard setting switches 51 and 52, the tape 2 Running will stop automatically. Therefore, it is possible to prevent the tape position information from shifting due to the tape 2 being wound onto one reel, etc., and it is also possible to prevent the tape from running too far unnecessarily.

Next, the repeat setting switch 53 is operated in conjunction with the memory operation switch group 30A. First, when the repeat setting switch 53 is operated, the display/switch input control section 27 notifies the MPU 29 that the repeat setting switch 53 has been operated, and the MPU 29 prepares to set a repeat section. Also, MPU
29 sets a repeat section if two different ones of the memory operation switch group 30A are operated after the repeat setting switch 53, but if any other operation switch is operated, the repeat section is set. Disable the setting. After the repeat setting switch 53 is operated, the memory operation switch group 30
If two different A are operated, MPU29
corresponds to the memory operation switch, and
A repeat section is set based on the tape position information stored in step 3. That is, after the repeat setting switch 53 is operated, each storage operation switch functions as a section specifying operation switch that specifies the first tape position information and the second tape position information stored in the RAM 23. Become. Next, the MPU 29 determines the relationship between the repeat section specified by the first tape position information and the second tape position information and the current tape position. In other words, when the current tape position is outside the repeat section, the MPU 29 speeds up the tape recorder 1 so that the tape position indicated by the first tape position information and the tape position displayed on the display unit 26 match. Roll and run. Thereafter, the tape 2 is played back and run from the tape position indicated by the first tape position information to the tape position indicated by the second tape position information. Thereafter, the tape 2 is rewound again to the tape position indicated by the first tape position. When the current tape position is inside the repeat section,
The MPU 29 maintains the running state of the tape 2 as it is. In other words, if the tape recorder 1 is in the stopped state when the repeat section setting is finished, it will remain in the stopped state even after the repeat section setting is finished, and if it is in the playback or fast-winding state, the repeat section Even after the settings are completed, playback or fast winding continues, respectively. However, the current tape position does not reach outside the repeat section set by the first and second tape position information. When the tape 2 is being played back from the tape position indicated by the first tape position information to the tape position indicated by the second tape position information, the current tape position is When the tape position coincides with the tape position indicated by the second tape position information, rewinding starts and the tape reaches the tape position indicated by the first tape position information. Then, playback is performed again to the tape position indicated by the second tape position information, and this operation is repeated thereafter. This repeat operation allows you to play the same section continuously. Further, when the tape 2 performs a fast winding operation in the repeat section, the running of the tape 2 is stopped when the current tape position reaches the tape position indicated by the first or second tape position information. That is, when the current tape position is inside the repeat section, even if the tape recorder is played back or fast-winded, the tape will not go outside the repeat section. Incidentally, if the repeat setting switch 53 is operated once more, the repeat operation is canceled.

Next, the mode selection switch 54 selects, for example, recording,
It consists of switches for playback, stop, rewind, fast forward, etc. When these switches are operated, the display/switch input control section 27 displays a data bundle line 2 indicating that the mode selection switch 54 has been operated.
8 to the MPU 29. MPU29 is PIA
17, the transport control 16 is controlled to operate in accordance with the operated mode selection switch 54.

In the embodiments of the present invention described above, the MPU 29 plays a central role in associating and controlling each component. Next, an example of processing by a main program that determines the operation of the MPU 29 will be described with a focus on a flowchart.

FIG. 3 shows a program and a reset program that stores the current tape position information displayed on the display section 26 into the area of the RAM 23 corresponding to each storage operation switch by operating one of the storage operation switches 30A. This is an example of a flowchart of a program for operating the switch 50.

First, execution of an operation begins at a start step 60. Step 61 is a step for determining whether the memory operation switch 30 has been operated. YES here
If so, go to step 67; if NO, go to step 62
leading to. Step 62 is a step for determining whether the memory operation switch 31 has been operated. here
If YES, go to step 67; if NO, go to step 63
leading to. Hereinafter, steps 63 to 66 follow the same flow and are steps for determining which storage operation switch has been operated. When any one of the memory operation switch group 30A is operated,
Next, the process proceeds to step 67, where it is determined whether the reset switch 50 has been operated. If YES, step
At step 71, the tape position information stored in the RAM 23 is set to zero, and at step 72, the display unit 2 is set to zero.
The current tape position information displayed in 6 is set to zero. If NO at step 67, proceed to next step 68
Then, it is determined whether the selected storage operation switch has already been operated and tape position information is stored in the corresponding storage area of the RAM 23.
If YES, step 73 ends; if NO, step 70 stores the current tape position information in the storage area of RAM 23 corresponding to the selected storage operation switch. Also, as determined in step 68
A configuration that displays whether tape position information is already stored in the storage area of RAM23 (step
69) may be provided between steps 68 and 70.

Next, an example of a flowchart of a program for repeat setting etc. will be explained with reference to FIGS. 4 and 5. A start step 83 executes the program. Step 84 is repeat setting switch 5
3 is a step for determining whether or not an operation has been performed. If NO, the process goes to step 86, and if YES, the process goes to step 87, indicating that one switch in the memory operation switch group 30A has been operated to specify the first tape position for setting the repeat section. is judged. If NO, it means that the switch has not been operated yet, and the process waits for the first tape position to be designated; if YES, the process advances to step 88. Step 88 moves the designated first tape position to the RAM 23 corresponding to the storage operation switch.
The data is read from the storage area and stored again in the RAM 23 as the first tape position of the repeat setting section. Similarly, in steps 89 and 90, it is determined that the second tape position in the repeat setting section has been designated, and the second tape position is stored again in the corresponding RAM 23. In step 91, it is determined whether the specified first and second tape position information have the same value. If YES, it is determined that the setting of the repeat section is inappropriate, and the process proceeds to step 86. Here, a configuration may be provided between steps 91 and 86 that warns the operator that the setting of the repeat section is inappropriate and provides an opportunity for correction. If NO in step 91, the values of the position information of the first and second tapes are compared in step 92. This is to facilitate the subsequent processing by checking which of the two tape position information is the tape winding start side. If the position information of the second tape is larger than the position information of the first tape, YES is determined and the process goes to step 94 (Figure 5); if NO, the process proceeds to step 93 where the first and second tape position information are After exchanging values, the process goes to step 94. Step 94 determines whether the current tape position is inside the repeat section set by the first and second tape position information. If YES, proceed to step 100, if NO, proceed to step 96,
The tape 2 is run while being controlled by fast forwarding or rewinding, and the current tape position is positioned at the first tape position, which is the tape winding start side, in the repeat setting section. Thereafter, in step 97, the tape 2 is played back and the process proceeds to step 98. By the way, in step 100, if the tape 2 is running in fast forward when the current tape position is within the repeat section, YES is returned and the process goes to step 101, and if NO, the process goes to step 102. Further, in step 102, if the tape 2 is being rewound, the process goes to step 103 as YES, and if NO, the process goes to step 98. Step 98 is a step for accepting that the mode selection switch 54 has been operated. In step 104, it is determined whether any of the mode selection switches 54 has been operated. If none of the switches have been operated, the process returns to step 94 as YES, and if it is NO, the process proceeds to step 105.
In step 105, it is determined whether the operated switch is a playback switch, and if YES, the step
At step 99, the tape is played back and then the process returns to step 94. If NO in step 105, the process proceeds to step 106, where it is determined whether the operated switch is a fast forward switch. If YES, the process advances to step 101, where the tape 2 is fast-forwarded, and after being positioned at the second tape position, which is one end of the winding end of the tape in the repeat setting section, the tape is stopped, and then the process proceeds to step 98. reach. At step 106
If NO, the process advances to step 107, and it is determined whether the operated switch is for rewind. YES
If so, the process advances to step 103, where the tape 2 is rewinded, and after being positioned at the first tape position, which is one end of the tape winding start side in the repeat setting section, the tape movement is stopped.
Reaching 98. If NO in step 107, the process proceeds to step 108, where it is determined whether the operated switch is stopped. If YES, proceed to step 109, stop the tape running, and then proceed to step 98.
Return to If the answer at step 108 is NO, the process similarly returns to step 98. The flowchart in FIG. 5 is terminated by canceling the repeat setting.

In any of the tape running modes described above, if the tape is about to go beyond the tape running range set by the guard switch, the tape will automatically stop running.

Although the flowchart of the main program of the MPU in the embodiment of the present invention is as described above, other flowcharts can be easily created. or,
The above flowchart shows an example of the process flow, and the process flow can be easily changed. For example, even if the repeat operation is in progress in FIG. 5, the operation of the mode selection switch 54 may be accepted with the highest priority.

It goes without saying that the present invention is not limited to the embodiments described above, and includes various modifications within the scope of the gist of the present invention. Many other embodiments can be considered for the structure and function of the operation switch included in the operation switch section shown in FIG. For example, the number 0
~9 dedicated switches may be provided, each number corresponding to the tape position information to be stored.
Further, the function of the numeric switch 43 may be changed so that the position information of any tape can be input quickly by using the numeric switch and a numeric switch in combination. Furthermore, two display sections are provided, one displaying the current tape position and the other displaying the RAM 23.
The position of the tape read from the tape may be displayed. By providing a numeric switch in this manner, it is possible to enter any number of tape position information, improving operability, and by providing a plurality of display units, tape position information can be easily managed. or,
The number of memory operation switches may be increased or decreased. In other words, if the number of memory operation switches is small, operations can be simplified, and if there are many, complex operations can be performed. Furthermore, as a means for storing tape position information, a combination of a storage operation switch and a numeric switch may be used;
A second storage operation switch is added, and the positions of the plurality of tapes are made to correspond to each of the storage operation switches 30, 31, 32, 33, 34, and 35,
It may also be changed using the second memory operation switch.

Further, the configuration of the present device shown in FIG. 1 can be modified in various ways. For example, there may be a plurality of MPUs as necessary. Alternatively, as a method of detecting the running of the tape 2, information encoded with time (time code) may be recorded on the tape in advance, and the time code may be reproduced by a playback head to obtain tape position information. .

According to the present invention described in detail above, even if the tape is automatically positioned, the recorded content is immediately played back, so there is no need for the operator to manually operate the playback switch, and the content of the tape can be checked immediately. can. Furthermore, since the tape running range is set by the guard switch, even if the tape recorder is left in the playback or fast-winding state, the tape will not be wound beyond the tape running range. Therefore, it is possible to prevent the tape from shifting its position.
Furthermore, it is easy to set, change, and cancel the tape running range and repeat section. Therefore, a series of operations such as tape editing etc. become smoother, and efficiency can be greatly improved.

[Brief explanation of drawings]

FIG. 1 is a schematic explanatory diagram of a tape recorder control device that is an embodiment of the present invention, FIG. 2 is a schematic explanatory diagram of an operation switch section that is an embodiment of the tape recorder control device, and FIG. A flowchart of a program in which the microprocessor unit of the recorder apparatus stores and resets tape position information, and FIGS. 4 and 5 are flowcharts of a program in which the microprocessor unit sets a repeat section. 1...tape recorder, 2...tape, 6...
Head, 16...Transport control,
17... Peripheral control adapter, 19... Tape running detection section, 21... Tape recorder control device, 22
...Storage section, 25...Operation switch section, 26...
Display section, 27...Display/switch input control section, 2
9...Microprocessor unit, 30A...
Memory operation switch group, 37A...Positioning operation switch group, 43...Number switch, 53...Repeat setting switch.

Claims (1)

[Claims] 1 A storage unit that stores tape position information, an operation switch unit that includes a plurality of operation switches, and a control unit that associates and controls the storage unit and the operation switch unit, and In a control device for a tape recorder that positions a tape based on position information, the operation switch section is defined by a tape running mode selection switch, a repeat setting switch, and a start and end of a signal recorded on the tape. a guard switch for setting a tape running range; when the tape is outside the tape running range set by the guard switch, the tape is run within the tape running range; 1. A control device for a tape recorder, comprising a control means for controlling the tape to stop running at a limit position of the running range when the tape is about to go out of the running range from within the running range.