JPH05290554A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To provide a magnetic recording and reproducing device having the memory and the display function of the reproducing history of a recording magnetic tape. CONSTITUTION:This device is provided with a clock part 2 providing the information of a date and a time, a tape deck part 1 recording and reproducing the information of the date and the time, a storage device 3 storing the information of the date and the time from the magnetic tape, a display device 4 displaying these information and a control part 5 controlling the respective parts and devices.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic recording / reproducing apparatus having a reproduction history storing and displaying function.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable increase in the number of functions of a magnetic recording / reproducing apparatus using a magnetic tape. An apparatus has been proposed in which a control track is provided on a tape and value-added information is recorded on the control track. An example is that the time when recorded for the first time can be recorded.

[0003]

However, the above-mentioned magnetic recording / reproducing apparatus has a problem that the time of reproduction cannot be recorded.

The present invention solves the above problems, and an object of the present invention is to provide a magnetic recording / reproducing apparatus having a function of storing and displaying the time of reproduction in the past and the number of times of reproduction.

[0005]

In order to achieve the above object, the present invention comprises a clock means for providing the date and time, a tape deck means for recording and reproducing the date and time, and a magnetic tape. Of the information, a display means for displaying the information, and a control means for controlling the respective means.

[0006]

According to the present invention, in the above-mentioned structure, the time of the past reproduction and the total number of reproductions are notified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a main part of a magnetic recording / reproducing apparatus according to an embodiment of the present invention. 1 is a tape deck section, 2 is a clock section, 3 is a storage device, 4 is a display device, and 5 is a control unit. It is a department.

FIG. 2 is a flow chart showing the processing in this embodiment. 3 to 6 are explanatory views of the relative relationship between the tape pattern and each head in this embodiment.
In FIG. 3, (a) shows the state when the main information is recorded for the first time. In the time information recording area, there are a start signal S indicating the beginning of the time information recording and an end signal E indicating the end of the time information recording. It is recorded. (B) is (a)
When the tape is reproduced for the first time, the recorded start signal S is detected by the reproducing head, and (c) shows the end signal E after (b).
The state where the end signal E is erased is shown in FIG.
Represents a state in which after erasing, after the start signal S, the information T1 at the current time is recorded, and subsequently, the end signal E indicating the end of the information T1 is recorded, and (e) represents the signal S, Play the tape on which the information T1 and the signal E are recorded,
The state where the start signal S is detected, (f) is (e)
After that, a state in which the reproducing head is reading the time information T1, FIG. 5 (g) shows a state in which the end signal E is subsequently detected and the end signal E is erased, and (h).
Is the information T2 of the current time after the information T1 is recorded.
Is recorded, and then the end signal E indicating the end of the time information is recorded.

FIG. 6 shows a tape pattern when the tape is reproduced n times by the above process.

FIG. 3A is an explanatory view of the tape pattern when the main information is recorded for the first time. The main information and the time information when the main information is reproduced are recorded in different areas. A main information reproducing head is used for reproducing the main information. In (a) of FIG. 3, the area for recording time information includes a start signal S indicating the beginning of a recording area for time information necessary to know the time at which the main information was reproduced and a recording area for time information. An end signal E indicating the end is recorded. This tape is reproduced on the tape deck section 1 in FIG. The area in which the time information is recorded is read by the reproducing head, and the signal S indicating the beginning of the time information is detected ((b) in FIG. 3),
Then, the end signal E is detected and the end signal E is detected.
Is erased by the erasing head ((c) of FIG. 3), and then
The current time information T1 provided from the clock unit 2 is recorded, and then the end signal E is recorded ((d) in FIG. 4).

Then, the tape which has been reproduced once is reproduced again. A signal S indicating the beginning of time information is read by the reproducing head ((e) in FIG. 4), and then the time information T1 is read and written in the storage device 3 in FIG. 1 (in FIG. 4). (F)). The written information can be displayed on the display device 4 of FIG. Next, the end signal E indicating the end of the time information is detected, and the signal E indicating the end of the time is erased by the erase head ((g) in FIG. 5). Then, the current time information T provided from the clock unit 2 in FIG.
2 is recorded, and thereafter, the end signal E indicating the end of the time information is recorded ((h) in FIG. 5).

FIG. 2 is a flowchart showing the processing at this time. The number of pieces of time information from the signal S indicating the beginning of the time information to the signal E indicating the end of the time information is the number of times of reproduction in the past.

FIG. 6 shows a tape pattern showing a reproduction history after the tape shown in FIG. 3A is reproduced N times.

As described above, according to the magnetic recording / reproducing apparatus of the embodiment of the present invention, when the main information is recorded, the start signal S indicating the start of the time information recording area is recorded on the time information recording track, and subsequently. An end signal E indicating the end of the time information recording area is recorded, and in the first reproduction,
By detecting the start signal S and the end signal E, the end signal E is replaced with the time information T1 from the clock section, and thereafter the end signal is recorded again. In the second playback,
After detecting the start signal S, the time information T1 is read and written in the storage device. The subsequent end signal E is detected and replaced with the current time information T2 from the clock section, after which the end signal E is recorded. This operation is repeated for each reproduction, and the reproduction history of the date, time, and the time of each reproduction is recorded on the tape, and this history is written in the storage device and can be displayed on the display device.

Although the signal indicating the end of the time information is recorded independently of the last time information in this embodiment,
It may be recorded together with the information of the last time. Further, the head is shown as an example of a fixed head, but other heads may be used. Further, although three heads of recording, reproducing and erasing are used, the function and number of heads are not limited as long as the above-mentioned object is achieved. Further, although the main information and the time information are recorded as shown in FIG. 3A, other recording methods may be used.

[0017]

As described above, the present invention is capable of recording the time of reproduction in the past, and being able to know the time of reproduction in the past and the total number of times of reproduction, which is practically effective. It will be.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a main part of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a history recording process in the apparatus.

FIG. 3 is a tape pattern in a history recording process in the same device.

FIG. 4 is a tape pattern in a history recording process in the same device.

FIG. 5 is a tape pattern in a history recording process in the same device.

FIG. 6 is a tape pattern when the tape is reproduced n times in the same device.

[Explanation of symbols]

 1 Tape Deck Part (Tape Deck Means) 2 Clock Part (Clock Means) 3 Storage Device (Storage Means) 4 Display Device (Display Means) 5 Control Part (Control Means)

Claims (1)

[Claims] 1. A tape deck means having a recording head for recording time information on a magnetic tape, a reproducing head for reading time information from the magnetic tape, and an erasing head for erasing unnecessary information, and a year. Clock means for providing the date and time, storage means for storing time information,
Display means for displaying time information, control for sending date and time information provided by the clock means to the tape deck means, control for sending time information from the tape deck means to the storage means, A magnetic recording / reproducing apparatus comprising control for sending time information from a storage means to the display means, control means for controlling the tape deck means, the clock means, the storage means and the display means.