JPH07122045A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To correctly execute edition by counting writing of a memory section which semipermanently stores set contents, such as counter value, mode and cut in points and cut out points of a VTR at the time of edition and prohibiting the writing when an assured number of times is attained. CONSTITUTION:Various pieces of information including the present counter value, deck mode, etc., are inputted from a mechanism control section 11 to a control section 12 by setting operation of the cut in points and cut out points of an operation section 14. The control section 12 writes various pieces of such information into the memory section 13 which semipermanently stores the information when a writing prohibit command is not emitted to a count section 15. The control section 12 reads out various pieces of the information of the memory section 13 and executes the set processing of the cut in points and cut out points. The count section 15 counts the number of writing times at the end of the execution and stores the number in the memory section 13. The memory section instructs the control section 12 to prohibit the subsequent writing to the memory section 13 when the number of writing times attains the assured number of times. As a result, the set contents of the edition are correctly stored and a malfunction is prevented even if the power source is turned off.

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 effective for use in a video tape recorder (hereinafter referred to as VTR).

[0002]

2. Description of the Related Art In recent years, the use of VTRs has been increasing not only for recording and reproducing and enjoying, but also for editing such as connecting and recording individual screens.

The above-mentioned VT will be described below with reference to the drawings.
An example of R will be described. FIG. 2 is a block diagram of a conventional magnetic recording / reproducing apparatus. 21 in FIG.
Is a mechanism control unit that controls the VTR mechanism and outputs the VTR counter value and the VTR state such as deck mode. A control unit 22 writes / reads data to / from the storage unit 23, inputs counter values and deck mode data required for the editing function, and stores the setting contents of the cut-in point and the cut-out point. Reference numeral 23 is a storage unit that semi-permanently stores the setting contents of the edit function such as the cut-in point and the cut-out point. Reference numeral 24 is an operation unit for setting the cut-in point and the cut-out point.

The operation of the conventional VTR constructed as above will be described below.

In FIG. 2, the control unit 22 inputs and stores the current counter value from the mechanism control unit 21 according to a cut-in point setting command from the operation unit 24, and writes it in the storage unit 23 as cut-in point information. Next, the current counter value is input and stored from the mechanism control unit 21 in accordance with a cutout point setting command from the operation unit 24, and is written in the storage unit 23 as cutout point information. Further, when the AC power is once removed and then turned on again, the control unit 22 causes the storage unit 2 to operate.
By reading information such as the cut-in point and the cut-out point of No. 3 in the editing function, the setting contents in the editing function can be semi-permanently stored.

[0006]

However, in the above-mentioned configuration, since the guaranteed number of times of writing in the storage section is limited, if the number of times of writing exceeds a certain value, the player is cut when setting the editing program. The in-point cut-out point, the cut-in point of the recorder and the counter value of the cut-out point may be written in wrong values. It was

In view of the above problems, the present invention provides a magnetic recording / reproducing apparatus capable of correctly executing editing.

[0008]

In order to solve the above problems, the VTR of the present invention controls the VTR mechanism to control the VT.
A mechanism control unit that outputs the counter value of R and the VTR status such as deck mode, a storage unit that semi-permanently stores the setting contents in the edit function such as the cut-in point and the cut-out point, and writing to the storage unit and A control unit that reads in and inputs the counter value and deck mode data necessary for the editing function and stores the setting contents of the cut-in point and the cut-out point, and the operation unit that performs the setting operation of the cut-in point and the cut-out point. , And a count unit that counts the number of writes to the storage unit and prohibits writing from the control unit to the storage unit.

[0009]

According to the present invention, with the above-described structure, even if the guaranteed number of times of writing in the storage unit is exceeded, when the AC power is once disconnected and then turned on again, the control unit causes the cut-in point and the cut-out point of the regenerator in the storage unit, It is possible to prevent a malfunction such that the counter values of the cut-in point and the cut-out point of the recorder are erroneously read and the editing cannot be executed correctly.

[0010]

EXAMPLE A VTR according to an example of the present invention will be described below.
A description will be given with reference to the drawings.

FIG. 1 shows a VT in the first embodiment of the present invention.
It is a block diagram of R. In FIG. 1, 11
Is a mechanism control unit capable of controlling the VTR mechanism and outputting the VTR counter value, the VTR state such as the deck mode, and the like. Reference numeral 12 is a control unit that can write to and read from the storage unit 13, can input counter values and deck mode data necessary for the editing function, and can store setting contents of cut-in points and cut-out points. . A storage unit 13 can semi-permanently store the setting contents of the edit function such as the cut-in point and the cut-out point. Reference numeral 14 is an operation unit for setting the cut-in point and the cut-out point. 15 can count the number of writings to the storage unit 13, and the control unit 12
It is a counting unit that can prohibit writing from the storage unit 13 to the storage unit 13.

Regarding the VTR constructed as described above,
The operation will be described. In FIG. 1, the control unit 12 inputs the current counter value from the mechanism control unit 11 according to a cut-in point setting command of the operation unit 14 and stores it as information of the cut-in point, and the count unit 15 issues a write-protection command. If there is not, write it in the storage unit 13. Similarly, the current counter value is input from the mechanism control unit 21 by the setting command of the cutout point of the operation unit 14 and stored as the information of the cutout point. If the write prohibit command is not issued from the counting unit 15, the storage unit 13 Write in. When the cut-in / cut-out point setting process is completed, the counting unit 15 counts up the number of times of writing and the storage unit 1
Save to 3. When the write count reaches the guaranteed count, the counting unit 15 outputs a write prohibition command to the control unit 12. The control unit 12 prohibits subsequent write operations to the storage unit 13. Further, when the AC power is once removed and then turned on again, the control unit 12 reads the information of the cut-in point and the cut-out point of the storage unit 13 in the editing function to semi-permanently set the setting contents in the editing function. It is something that can be remembered.

As described above, according to the present embodiment, the mechanism control unit capable of controlling the VTR mechanism and outputting the VTR counter value, the VTR state such as the deck mode, and the writing / reading to / from the storage unit. The control unit that can input the counter value and deck mode data required for the editing function and can store the setting contents of the cut-in point and the cut-out point, and the edit function of the cut-in point, the cut-out point, etc. The storage section that can semi-permanently store the setting contents in, the operation section that sets the cut-in point and the cut-out point, and the number of writes to the storage section can be counted, and the control section can write to the storage section. Is provided with a counting unit that can prohibit.

[0014]

INDUSTRIAL APPLICABILITY As described above, the present invention controls the VTR mechanism and outputs the VTR counter value, the VTR status such as the deck mode, and the writing and reading to and from the storage unit. The control part that can input the counter value and deck mode data required for the editing function and can store the setting contents of the cut-in point and the cut-out point, and the editing function of the cut-in point, the cut-out point, etc. A storage unit that can semi-permanently store the settings, an operation unit that sets the cut-in and cut-out points, and the number of writes to the storage unit can be counted. By including the count unit that can be prohibited, it is possible to correctly store the setting contents in the editing function,
It is possible to obtain an excellent effect that the editing function can be executed accurately.

[Brief description of drawings]

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

FIG. 2 is a block diagram of a conventional magnetic recording / reproducing apparatus.

[Explanation of symbols]

 11 mechanism control unit 12 control unit 13 storage unit 14 operation unit 15 counting unit

Claims (1)

[Claims] 1. A mechanism control unit for controlling a VTR mechanism to output a VTR counter value and a VTR state such as a deck mode, and semi-permanently storing setting contents in an edit function such as a cut-in point and a cut-out point. And a control unit that stores the setting contents of the cut-in point and the cut-out point by inputting the counter value and the data of the deck mode necessary for the editing function by writing and reading in the storage unit. And a magnetic recording / reproducing device comprising: an operating unit for setting a cutout point; and a counting unit for counting the number of writings to the storage unit and prohibiting writing from the control unit to the storage unit. apparatus.