JPH0441434B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic recording and reproducing device, and in particular, to a magnetic recording and reproducing device such as a dictation recorder, a plurality of pieces of information recorded on a magnetic recording medium such as letter end marks, etc. The present invention relates to a device that can clarify the context of each piece of information between each information recording position using information distinguishing marks that indicate the divisions of the information.

Conventional technology A dictation recorder records a letter end mark (L mark) at the end of each recorded sentence to indicate the end of the sentence, or an instrument recorder that indicates the end of a comment to be conveyed to the typist typing the sentence. Record a luxation mark (I mark). For example, the L mark indicates a 15Hz signal at 15.5
For example, the I mark records a 15 Hz signal twice for 15.5 cycles with a pause of 8 cycles in between.

In this case, a queue counter (letter counter) consisting of a binary counter that counts rotation pulses that detect the rotation of the reel motor as the magnetic tape runs is incremented, and a key counter at the tape position where the L mark is recorded is counted up. The count value of the U counter is stored in RAM, and the number of times the L mark is recorded (stored in RAM), that is, the number of recorded sentences, is displayed as a letter number in the order of recording.

Problems to be Solved by the Invention In conventional devices, when a magnetic tape is ejected from a deck, the count value of the queue counter is preset to zero (initial value), and when a new magnetic tape is loaded, the count value is reset from zero. It was configured to start counting. Therefore, if you attach a magnetic tape that is partially wound (hereinafter referred to as the partially wound state) and record sentences from it,
There is no particular problem in recording from there toward the end of the tape.

However, if you want to record a certain sentence at a certain position after rewinding the magnetic tape in the tape winding start direction from the above-mentioned mid-way state with a letter number smaller than the letter number in the tape winding end direction from the above-mentioned mid-way state, when the magnetic tape is rewound, the key The count value of the U counter is
After the preset value is set to zero, the value becomes greater than the count value when the tape is fully wound from the halfway state to the end, and the letter number becomes larger than the one in the halfway state, making it difficult to understand the context of the sentence. There was a problem where it could not be displayed correctly.

The present invention makes it possible for the count value of the cue counter to be large in the tape winding end direction and small in the tape winding start direction, no matter what winding state the magnetic tape is mounted on. It is an object of the present invention to provide a magnetic recording/reproducing device which makes clear the context of each piece of information between each information recording position by using information distinguishing marks that indicate the divisions of a plurality of pieces of information recorded in the information recording position.

Means for solving the problem In Fig. 1, the queue counter 1 is a magnetic tape 10
at least 2 of the counting capacity corresponding to the total capacity of
Counter that can count up to double the capacity, CPU6
When the magnetic tape 10 is newly installed in the device, the count value of the queue counter 1 is preset to 1/2 of the total count capacity of the queue counter 1, and when recording, the L mark (information information) on the magnetic tape 10 is preset. This is an embodiment of a control means that stores recording positions of recording marks) according to the count value of the cue counter 1, and replaces the stored L marks with the L marks starting from the one with the smaller count value.

Effect When the magnetic tape 10 is ejected, the CPU
6 acts to preset the count value of the queue counter 1, which is capable of counting twice the total capacity of the magnetic tape 10, to a count value of 1/2 of the total count capacity. This preset value corresponds to at least the total capacity of the magnetic tape 10. Also,
During recording, the recording position of the L mark on the magnetic tape 10 is stored according to the count value of the cue counter 1, and is replaced starting from the one with the smallest count value.

Embodiment Figure 1 is a block system diagram of an embodiment of the device of the present invention, Figure 2 is a schematic functional diagram of the CPU in Figure 1, and Figure 3 is a schematic functional diagram of the CPU in Figure 1.
Figures A and B show flowcharts for explaining the operation of the CPU. In FIG. 1, the queue counter 1 counts the rotation pulses from the rotation detector 3 that detects the rotation of the supply reel motor 2, and uses the entire count capacity to calculate the count capacity for the magnetic tape (for easy explanation). (for example, 100) is set to more than twice (for example, 200).

Now, when the power switch 4 is turned on or the attached magnetic tape is ejected and the eject switch 5 is turned on (step A in FIG. 3).
100), by the output of memory clear 6a of CPU6
A numerical value corresponding to the letter number stored in the RAM 7 is cleared (step 101), and then the count value of the queue counter 1 is cleared by the output of the counter clear 6b (step 102). Next, the count value of queue counter 1 is set to 1/2 of the total capacity of 200 by the output of counter preset 6c.
It is preset to 100 (step 103) and placed in a standby state for operation (step 104).

When using a magnetic tape in a state where it is not wound at all in the direction of the end of the tape, or even if it is completely wound in the direction of the end of the tape, it must be completely rewound before use. There are no particular problems if you do so.

The case where it is used from an intermediate state will be described below. As mentioned above, the queue counter 1 is preset to a count value of 100 when the magnetic tape is ejected. Therefore, when recording an L mark at a position where the magnetic tape 10 inserted in the middle is fast-forwarded toward the end of tape winding, the count value of the cue counter 1 at that position will count up and reach the preset value of 100 or more. The value is .
In addition, when recording an L mark at a position where the magnetic tape 10 inserted in the middle is rewound once in the tape winding start direction, the count value of the cue counter 1 at that position is counted down to a preset value of 100 or less. value.

On the other hand, the queue counter 1 is capable of counting more than twice the total capacity of the magnetic tape 10, and the preset value in the intermediate state corresponds to at least the total capacity of the magnetic tape 10. Therefore, even when the magnetic tape 10 is rewound from an intermediate state to the winding start position, the count value of the queue counter 1 will not exceed the count value in the intermediate state, unlike the conventional device.

In other words, in the apparatus of the present invention, when the magnetic tape is ejected, the queue counter 1 is preset to 100, which is a count value corresponding to more than the full capacity of the magnetic tape 10. , the count value of the queue counter 1 is always large at a position toward the end of tape winding and small at a position toward the beginning of tape winding. In this way, the context of each sentence can be accurately detected from the numerical value of queue counter 1 as described below.

For example, suppose that two sentences are recorded in sequence from the middle state toward the end of tape winding, and two L marks are recorded. In this case, when the L mark recording button 8 is operated, an L mark is recorded at a predetermined position on the magnetic tape 10 by the L mark recording 6d output from the CPU 6 (step 200 in FIG. 3B). Next, let us record a sentence that should be recorded at a position closer to the tape winding start direction than the midway state and before the two sentences recorded in the tape winding end direction from the midway state.
Therefore, the magnetic tape 10 is rewound, the third sentence is recorded at the appropriate position, and the third L mark is recorded.

The count values of the queue counter 1 when the above three L marks are recorded are respectively stored in the RAM 7, and then the total number of L marks is displayed on the display section 9 by the display drive 6f output of the CPU 6 as shown in the first figure. 3 ^LTR ” is displayed (step 201). In addition, as mentioned above, set the count value of queue counter 1 to 100.
Since the front and back relationship of the magnetic tape 10 is made clear by presetting to
The mark is stored thirdly in RAM7,
When rewinding the tape from the halfway state, cue counter 1 is counting down from the preset value 100, so the third L mark among the three L marks mentioned above is displayed.
The mark is stored as the lowest count value.

Next, the comparison and replacement 6e output from the CPU 6 compares the count values of the three L marks stored in the RAM 7, and replaces the letter numbers in order from the smaller count value to the larger one. (Step 202), display drive 6f
Displayed by output.

In other words, the third L mark recorded above is the first sentence, so "1" is displayed, and the first L mark recorded above is the second sentence, so "2" is displayed. Since the second L mark recorded above is the third sentence, "3" is displayed.

Effects of the Invention The device of the present invention has a counter that can count up and down as a magnetic recording medium (for example, a magnetic tape) runs up to a capacity that is at least twice the counting capacity corresponding to the total capacity of the magnetic tape. The configuration is such that when a magnetic tape is newly installed in the device, the counter value is preset to 1/2 of the counter capacity, and when information is recorded, the information on the magnetic tape is The recording position of the distinction mark is stored according to the count value of the counter, and the count value of each stored information distinction mark is compared and the information distinction mark is replaced starting from the one with the smaller count value. After sequentially recording two sentences (information) and two L marks (information distinguishing marks) related to these sentences on the magnetic tape that has been wound up to When a new sentence and the third L mark related to this sentence are recorded at the position before the recorded recording position, the position where the third L mark is recorded will have the smallest count among the three L marks mentioned above. It is stored as a value and the count value of each of the three L marks mentioned above is compared.
Therefore, no matter what winding state the magnetic tape is in, the count value of the counter will be small in the direction of the winding start of the magnetic tape and large in the direction of the winding end of the magnetic tape. This has the effect of clarifying the context of each sentence recorded on the magnetic tape.

[Brief explanation of drawings]

FIG. 1 is a block system diagram of an embodiment of the apparatus of the present invention, FIG. 2 is a schematic functional diagram of the CPU shown in FIG. 1, and FIG. 3 is a flowchart for explaining the operation of the apparatus of the present invention. 1...Queue counter, 2...Supply side reel disk, 3...Rotation detector, 4...Power switch, 5...Eject switch, 6...CPU,
6a...Memory clear, 6b...Counter clear, 6c...Counter preset, 6d...L mark recording, 6e...Comparison and replacement, 6f...Display drive, 7...RAM, 8...L mark recording button,
9...display section, 10...magnetic tape.

Claims (1)

[Claims] 1. A magnetic recording and reproducing device configured to clarify the context of each piece of information between each information recording position by using information distinguishing marks that indicate the divisions of a plurality of pieces of information recorded on a magnetic recording medium. A counter whose total counting capacity is set to at least twice the counting capacity of the magnetic recording medium used, and a value corresponding to the stored information distinguishing mark and the count value of the counter, respectively, are cleared at the time of initial setting. Then, the count value of the counter is preset to 1/2 of the total count capacity, and when recording,
Storing the recording position of the information distinguishing mark on the magnetic recording medium according to the count value of the counter, comparing the magnitude of the count value of each of the stored information distinguishing marks, and replacing the information distinguishing mark from the one with the smaller count value. What is claimed is: 1. A magnetic recording and reproducing device comprising: control means for performing the following steps.