KR0153827B1 - Recording method - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple recording method in a video cassette recorder, and more particularly, to a simple recording method which can be easily changed from an simple recording (OTR) mode to another mode.

According to the present invention, in the OTR method of a video tape recorder, a reading step of reading a key signal transmitted from the key metrics unit 10 of the remote controller to the microcomputer 11, and whether the read key signal is a recording key or not; Determining by the microcomputer 11 whether the mode before the key signal is generated for the current mode change is the recording mode or the OTR mode, and the mode before the key signal generation is the recording mode or the OTR mode. In this case, the microcomputer 11 counts the predetermined number, and when the predetermined number is counted, the microcomputer 11 sets the system mode to the recording mode and outputs a recording mode signal to the servo 13. The servo 13 transmits an output signal to the deck 14, and the deck 14 receives an output signal from the servo 13 and includes a recording mode setting and performing step of performing a recording mode. remind The key of the key metrics unit 10 provides an OTR method in the video tape recorder which is kept pressed until the recording mode is set.

Description

Easy recording in video cassette recorder

1 is a block diagram of a video cassette recorder suitable for practicing the present invention.

2 is a flowchart of a video cassette recorder according to the present invention.

* Explanation of symbols for main parts of the drawings

10: key metrics part 11: micom

12: buffer 13: servo

14: Deck

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple recording method in a video cassette recorder, and more particularly, to a simple recording method which can be easily changed from an simple recording (OTR) mode to another mode.

In the case of simple recording in a conventional video tape recorder, a method of setting the simple recording (OTR) mode is as follows.

Once you have set up the OTR mode, you must press the record button one to ten times in order to change the time of the OTR mode. In addition, if you want to change to another mode from the OTR mode, you must press the record button from 1 to 10 times as well. That is, in order to cancel another existing OTR mode and perform another operation, another mode may be performed only after changing 10 OTR modes.

Accordingly, an object of the present invention is to provide a simple recording method that can conveniently cancel OTR mode in order to solve the above problems.

Looking at the cause of the problem in the prior art, when the key to generate the key signal when operating the key metrics portion of the remote control, and how the user presses any one key, the key is two signals, that is, the mode Generates a key signal and an 80H signal, the mode key signal is generated when the key is pressed, and the 80H signal is generated when the pressed key is released. However, in the conventional method, since the mode is set only when the mode key signal and the 80H signal are input to the mode, the key must be pressed and released to change the mode. In addition, in the OTR mode, the recording button is set to be pressed once and sequentially in sequence from 1 to 10 times.

Therefore, in the present invention, the mode key signal generated while the key is pressed is processed even in the absence of the 80H signal, and the count is kept while the key is kept pressed. It solves the problem of technology.

In order to achieve the above object, the OTR method in the video tape recorder of the present invention includes a reading step of reading a key signal transmitted from the key metrics unit 10 of the remote controller to the microcomputer 11, and whether the read key signal is a recording key. Is determined by the microcomputer 11, the microcomputer 11 determines whether the mode before the key signal for the current mode change is the recording mode or the OTR mode, and the mode before the key signal generation. In the recording mode or the OTR mode, the microcomputer 11 counts the predetermined number, and when the predetermined number is counted, the microcomputer 11 sets the system mode to the recording mode and records the data on the servo 13. Outputs a mode signal, and the servo 13 transmits an output signal to the deck 14, and the deck 14 receives and outputs an output signal from the servo 13 to set and perform a recording mode. To step is configured, the key of the key matrix section 10 is characterized in that it continues to be maintained in the pressed state until the recording mode is set.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a video tape recorder suitable for practicing the present invention. As shown in FIG. 1, a video tape recorder suitable for practicing the present invention includes a key metrics 10, a microcomputer 11, a buffer 12, a servo 13, and a deck 14. The functions of each part are as follows.

The key metrics unit 10 is a part of the remote controller, and when the user wants to select a mode using the remote controller, the key metrics unit 10 outputs a key signal when the key of the key metrics unit 10 is pressed.

The microcomputer 11 controls the entire system, and in particular, receives a key signal output from the key metrics unit 10 to determine a key value, and accordingly determines a mode, stores the key value in the buffer 12 and, if necessary, Reads the key value stored in the buffer 12, and transmits the control command necessary to perform the mode to the servo 13.

The buffer 12 stores the key value output from the key matrix unit 10 under the control of the microcomputer 11 and also transfers the stored key value to the microcomputer 11.

The servo 13 is controlled by the microcomputer 11 to control a drive motor, a capstan motor, a drum motor, and the like in the deck 14.

The deck 14 includes a reel, a driving motor, a capstan motor, a drum motor, a head, and the like, and performs a mode desired by the user under the control of the servo 13.

2 is a flowchart of a video cassette recorder according to the present invention. Prior to the description of the flowchart, a brief and repeated description of how a key generates and transmits a key signal when operating the key metrics unit 10 of the remote control. When the user presses a key, the key generates two signals, a mode key signal and an 80H signal, which is generated when the key is pressed, and the 80H signal is generated when the pressed key is released.

The flowchart will be described below.

When the user wishes to select or change a mode using the remote control (since it is essentially the same as in the case of selection and in the case of change, only the case of change is described here for the sake of simplicity). When the key of the matrix unit 10 is pressed, the key matrix unit 10 generates a key signal and transmits the key signal to the microcomputer 11. The microcomputer 11 reads the key value A by determining the key signal in step 31. In step 32, the microcomputer 11 determines whether the key value A is 80H. Note that the key remains pressed. Since the key signal generated while the key is pressed is not a 80H but a mode key signal, it is determined as NO and step 33 is progressed. In step 33, the microcomputer 11 determines whether or not the key value A is a recording key indicating a recording mode through a memory and a data retrieval unit, mode discrimination, and the like not shown. When it is determined that the key value A is the recording key, step 34 is reached. In step 34 the microcomputer 11 determines whether the key value A is equal to the value B stored in the buffer 12.

Here, since the key has been kept pressed, there is no value B stored in the buffer 12. However, the value B in this case is that the key value A has already been contained in the buffer 12 at the time the user selects the mode being used before changing the mode in step 30. The fact that the key value A is equal to the value B stored in the buffer 12 means that the value B is the same value as the recording key because the key value A is the current recording key, that is, the recording mode (record button) before the mode change. It means that it was in No. 1, record button 10) or OTR mode (record buttons 2-9).

At this time, if it is determined that the key value A is equal to the value B, the process proceeds to step 35, in which the microcomputer 11 is not shown inside the microcomputer 11 while the key is kept pressed. The counter is allowed to count to determine whether the count is three. If the count is three, the process proceeds to step 36 where the system mode is set to the recording mode, and the microcomputer 11 sets the recording mode to the servo 13. Outputs a recording mode signal to perform the operation, the servo 13 transmits an output signal to the deck 14 to cause the deck 14 to perform the recording mode, and the microcomputer 11 proceeds to step 37. . In step 37 the microcomputer 11 clears the counter and proceeds to step 38 to store the key value A in the buffer 12 and ends at step 39. Note that at this time, the pressed key of the key metrics unit 10 is released here.

When the key is released, a signal of 80H is generated and step 30 starts again, and in step 31, the microcomputer 11 reads the key value and determines in step 32 whether the key value A is 80H. Since the key value is 80H, the microcomputer 11 proceeds to step 37 to clear the counter, stores the key value A 80H in the buffer 12 in step 38, and ends in step 39.

If it is determined in step 34 that the key value A is not equal to the value B stored in the buffer 12, i.e., if it was not in the recording mode or the OTR mode prior to the mode change, the mode change can be easily performed. 11, the process proceeds to step 50 to read the system mode, and steps 50 to 60 are omitted since they are a mode selection method of a conventional video tape recorder.

As can be seen from the above description, in the state in which the recording mode or the OTR mode is being performed, the user only keeps pressing the recording key to automatically return to the recording mode when the count reaches 3, the recording button as in the prior art. The hassle of pressing 1 to 10 in sequence can be eliminated and OTR mode cancellation can be made convenient.

Claims (1)

In the OTR method of the video tape recorder, a reading step of reading a key signal transmitted from the key metrics unit 10 of the remote controller to the microcomputer 11 and determining whether the read key signal is a recording key by the microcomputer 11. And determining, by the microcomputer 11, whether the mode before the key signal is generated for the current mode change is the recording mode or the OTR mode, and when the mode before the key signal generation is the recording mode or the OTR mode. Counting up to a predetermined number in the microcomputer 11, and when the predetermined number is counted, the microcomputer 11 sets the system mode to the recording mode, outputs a recording mode signal to the servo 13, and outputs the servo ( 13 is an output signal to the deck 14, the deck 14 receives the output signal from the servo 13 is composed of a recording mode setting and execution step of performing a recording mode, the key metrics The key of the sub (10) should be kept pressed until the recording mode is set.