JP3237344B2 - Magnetic recording / reproducing device - Google Patents

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 simply recording, reproducing and enjoying, but also for editing such as connecting and recording individual screens.

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

The operation of the conventional VTR configured as described 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 in response to a cut-in point setting command of the operation unit 24, and writes the current counter value into 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 the cutout point setting command of the operation unit 24, and is written into 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 stores in the storage unit 2.
By reading information in the editing function such as the cut-in point and the cut-out point of No. 3, the setting contents in the editing function can be semi-permanently stored.

[0006]

However, in the above-described configuration, the number of guaranteed writes in the storage unit is limited. Incorrect values may be written to the counter values of the in-point cut-out point, the cut-in point of the recorder, and the cut-out point, and the editing may not be performed correctly. Was.

The present invention has been made in view of the above-mentioned problems, and provides a magnetic recording / reproducing apparatus capable of correctly executing editing.

[0008]

In order to solve the above-mentioned problems, a VTR according to the present invention controls a VTR mechanism to control a VT.
A mechanism control unit that outputs the VTR status such as the R counter value and the deck mode; a storage unit that semi-permanently stores setting contents in an editing function such as a cut-in point and a cut-out point; A control unit for reading and inputting the counter value and deck mode data necessary for the editing function and storing cut-in and cut-out point settings, and an operation unit for setting cut-in and cut-out points And a counting unit that counts the number of times of writing to the storage unit and prohibits writing from the control unit to the storage unit.

[0009]

According to the present invention, when the AC power is once turned off and turned on again even if the number of times of writing in the storage section is exceeded, the control section operates the cut-in point and cut-out point of the reproducing device in the storage section. It is possible to prevent erroneous operation such that the counter values of the cut-in point and the cut-out point of the recorder are erroneously read and editing cannot be performed correctly.

[0010]

Hereinafter, a VTR according to an embodiment of the present invention will be described.
This will be described with reference to the drawings.

FIG. 1 shows a VT according to a first embodiment of the present invention.
FIG. 3 shows a block diagram of R. In FIG. 1, 11
Is a mechanism control unit that can control the VTR mechanism and output the VTR state such as the VTR counter value and the deck mode. Reference numeral 12 denotes a control unit that can write and read data to and from the storage unit 13, can input a counter value and deck mode data necessary for an editing function, and can store setting contents of a cut-in point and a cut-out point. . Reference numeral 13 denotes a storage unit capable of semi-permanently storing setting contents in an editing function such as a cut-in point and a cut-out point. An operation unit 14 performs a setting operation of a cut-in point and a cut-out point. 15 can count the number of times of writing to the storage unit 13;
This is a counting unit that can prohibit writing from the storage unit 13 into the storage unit 13.

With respect to the VTR configured as described above,
The operation will be described. In FIG. 1, the control unit 12 receives a current counter value from the mechanism control unit 11 according to a cut-in point setting command of the operation unit 14, stores the current counter value as information on the cut-in point, and issues a write inhibit command from the counting unit 15. If not, write it to the storage unit 13. Similarly, the current counter value is input from the mechanism control unit 21 in accordance with the cutout point setting command of the operation unit 14 and stored as information on the cutout point. Write to. When the cut-in / cut-out point setting process ends, the counting unit 15 counts up the number of writings and
Save to 3. When the number of times of writing reaches the guaranteed number of times, the counting unit 15 outputs a writing prohibition command to the control unit 12. The control unit 12 prohibits a subsequent write operation to the storage unit 13. Further, when the AC power supply is once removed and then turned on again, the control unit 12 reads information on the editing function such as the cut-in point and the cut-out point in the storage unit 13 so as to semi-permanently change the setting contents in the editing function. It can be memorized.

As described above, according to this embodiment, a mechanism control unit capable of controlling the VTR mechanism and outputting a VTR counter value, a VTR state such as a deck mode, etc., and writing / reading to / from the storage unit. 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 cut-out point, and the editing function of the cut-in point, cut-out point, etc. A storage unit capable of semi-permanently storing the setting contents of the operation unit, an operation unit for setting a cut-in point and a cut-out point, and capable of counting the number of times of writing to the storage unit, and writing from the control unit to the storage unit And a counting unit that can prohibit the counting.

[0014]

As described above, according to the present invention, a mechanism control unit capable of controlling a VTR mechanism and outputting a VTR counter value, a VTR state such as a deck mode, etc., and writing and reading to and from a storage unit. A 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 cut-out point, and the editing function of the cut-in point, cut-out point, etc. A storage unit that can semi-permanently store the setting contents, an operation unit that performs the setting operation of the cut-in point and the cut-out point, and can count the number of times of writing to the storage unit. With the provision of a count unit that can be prohibited, it is possible to correctly store the settings in the editing function,
An excellent effect that the editing function can be executed with high accuracy can be obtained.

[Brief description of the 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

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-4-360069 (JP, A) JP-A-4-10292 (JP, A) JP-A-3-157870 (JP, A) JP-A-5-205 128736 (JP, A) JP-A-5-205357 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G11B 27/029 G11B 27/02

Claims (1)

(57) [Claims] 1. A mechanism control unit that controls a VTR mechanism to output a VTR state such as a VTR counter value and a deck mode, and semi-permanently stores setting contents in an editing function such as a cut-in point and a cut-out point. A control unit that writes and reads data to and from the storage unit, inputs counter values and deck mode data necessary for the editing function, and stores cut-in and cut-out point settings. A magnetic recording / reproducing apparatus comprising: an operation unit for performing an operation of setting a cutout point; and a counting unit for counting the number of times of writing to the storage unit and prohibiting writing from the control unit to the storage unit. apparatus.