KR920003680B1 - Programable superimposer processing method - Google Patents

Abstract

The camcorder circuit has a microcomputer (10), a key matrix unit (20), a superimposer controller (30) and a memory (40). The method for editing the pictures successively by inputting a program reproducing key once only, comprises the steps of setting a programmode, a first mode and a first time set flags, recording a number of modes sequentially, repeatedly setting time flags in the program mode to set the execution times corresponding to each of the recorded modes, detecting the reproducing key inputting to set a reproduction mode flag and the reproduction mode, and successively reproducing each of the recorded modes in a set time.

Description

Programmable Superimposor Handling

1 is a diagram illustrating a subtitle type and a function switching sequence related to a superimposer.

2 is a block diagram to which the present invention is applied.

3 is a flowchart of performing a camcorder function.

4 is a superimposition cupping flow chart in accordance with the present invention.

5 is a mode performance in accordance with the present invention.

6 is a timer interrupt flow diagram when a mode is performed.

* Explanation of symbols for main parts of the drawings

10: micom 20: key matrix part

30: superimposor control unit 40: memory device

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the performance of a superimposer function in a camcorder, and more particularly, to a programmable superimposor processing method capable of continuously editing a screen through a single program play key input.

In general, a camcorder refers to an integrated video camera and video tape recorder. Superimposor is an additional function of the camcorder, which includes a recording function for storing subtitles, a read function for calling recorded subtitles, a toggle function for inverting subtitles and a background image, and a subtitle in one direction. There are various kinds of scrolls, such as scroll function that flows to the screen, and curtain function that the screen is covered with a single color sequentially in one direction. In order to control each function, the user directly presses a corresponding function key to execute or stop a desired function. However, as the user's desire to edit more various screens increases, the key input method may become more complicated, and it is well known that convenience of use should be considered. For example, when two subtitles are stored on different pages as shown in FIG. 1a, (b) the steps of normal screen → first subtitle reading → second subtitle reading → toggle → normal screen as shown in FIG. When you want to perform continuous functions such as playing sequentially or calling a specific screen and then scrolling after a certain time, according to the conventional method, the user directly presses a key as described above at each step switching. Since the switching of the function had to function, it was a hassle, and because of this, it was inevitable to stop the recording operation, so there was a problem that the continuous recording of the recording object was not possible, resulting in an interruption.

Accordingly, it is an object of the present invention to provide a programmable superimposor processing method that can program a desired function and duration in advance to perform continuous screen editing through one program play key input during recording.

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

2 is a system block diagram to which the present invention is applied. The microcomputer 10 collectively controls the overall operation of the system, and a key matrix unit for transmitting functions and time data keyed by a user to the microcomputer 10. (20), the superimposer control unit 30 which performs the superimposor function under the control of the microcomputer 10, and the microcomputer 10 to store data regarding various functions and durations, etc. And FIG. 3 is a flowchart illustrating a camcorder function execution, and FIG. 4 is a flowchart illustrating a process of performing a superimposor key function according to the present invention, and FIG. 5 is a diagram illustrating a mode performing process according to the present invention. 6 is a flowchart illustrating a timer interrupt function according to the present invention.

The present invention will be described in detail based on the above configuration.

The normal operation of the camcorder is performed as shown in the third diagram. The microcomputer 10 performs an initialization operation in step 3a and then proceeds to step 3b to check whether a key is input. At this time, if there is a key input, it proceeds to the step (3c) to perform the dedicated function of the camcorder function key and the superimposor.

After there is no key input in step (3b) or after the corresponding key function is completed in step (3c), it proceeds to step (3d) to check whether the general mode of the camcorder is performed. At this time, when the mode is performed, the mode is converted to the corresponding mode through the mechanism control in step (3e), and when the mode is not performed in the step (3e) or the mode is completed in the step (3e), step (3f). Proceed to perform display operations such as an on-screen display (OSD) and other operations. After completion of step (3f), the process proceeds to step (3g) to control the superimposor function and returns to step (3b).

Therefore, when the key input is detected through the normal key scan operation in step (3b), the key function execution routine of step (3c) is performed as shown in FIG. This is done through the process. That is, the program mode flag is checked in step 4a to check whether the current state is the program mode. At this time, if the program mode is not in step (41), the playback mode flag is checked by checking whether the current state is the playback mode.

If the check result indicates that the current mode is the normal mode, check whether the current input key is a program key in step (4m), and if it is a program key, set the program mode flag in step (4n) and set the first mode. The flag and the first time setting flag are also set and returned.

If the mode check result in step (4a) is a program mode, the process proceeds to step (4b) to check whether the currently input key is a mode key. At this time, if the first mode flag is not set, it is checked whether the second mode flag is set in step 4d. If the second mode flag is not set, the state of the third mode flag is checked in step (4e), and if the third mode flag is not set, the operation ends.

However, if it is found in each of (4c), (4d), or (4e) that the first mode, second mode, or third mode flag is set, proceed to step (4f) to apply the mode key to the corresponding mode memory. Performs a write operation for the command, resets the current mode flag, and sets the next mode flag. However, if it is determined in step (4b) that the current key is not a mode key, it is checked in step (4g) whether it is a time key. If the check result is not the time key, the operation is terminated. If it is determined that the time key is determined, the process proceeds to step 4h to check the state of the first time setting flag. In this case, if the first time setting flag is not set, the state of the second time setting flag is checked in step (4i), and if the second time setting flag is not set, the state of the third time setting flag in step (4j). If the third time setting flag is not set, the operation ends.

However, if it is found that any of the flags (4h) or (4i) or (4j) is set, the process proceeds to step (4k) to record the time in the corresponding time memory and reset the current time setting flag. Set the next time setting flag.

When the definition of the key is completed through the above-described process, the continuous mode reproduction operation is performed through the operation process as shown in FIG. That is, when the play key input is recognized in step 40, in step 4p, the play mode flag is set, and the first mode play flag is set to indicate that the function mode is to be performed first, and the execution time of the function mode is counted. The first reproduction time flag is set. As a result, the mode check result in step (4i) turns out to be the playback mode, and the flow proceeds to step (5b) in FIG. 5 to check whether or not the first mode playback flag is set. Perform. If the first mode regeneration flag is not set in step (5b), the flow advances to step (5c) to check whether the second mode regeneration flag is set, and if the second mode regeneration flag is not set, step (5d). If it is checked whether the third mode regeneration flag is set, and if the third mode regeneration flag is set, the process proceeds to step 5e to perform the third mode. At this time, the duration of the mode is counted by setting the corresponding playback time flag.

Therefore, a timer routine for counting the duration of each mode is required. As shown in FIG. 6, timer interrupts are set at regular intervals. If the playback time flag is checked and set in step (6a), operate the timer in step (6b), check if the time has elapsed in step (6c), and when the time is reached, set the play time completion flag. Set to indicate that the predetermined time has been reached, and at the same time, the corresponding playback time flag is reset and the playback time flag of the mode to be executed next is set to prepare for performing the next operation.

In order to continuously perform the above-described operation, the function switching of five steps (normal screen → first subtitle reading mode → second subtitle reading mode → toggle mode → normal screen) occurs continuously as shown in FIG. The process of storing the three modes in the memory and recording the duration of each of the three modes to perform the continuous function switching operation will be described as an example. Here, the three modes are assumed to be switched, but the type and number of modes can be arbitrarily adjusted.

In order to store the first subtitle reading mode in the memory 40, the user first presses a program key and the microcomputer 10 inputs the key. At this time, the microcomputer 10 determines the normal mode by performing a mode check in steps 4a and 4i of FIG. 4 and recognizes that the key is a program key in step 4m. After the flag is set, the first mode flag is set and the first time setting flag is set.

Next, when the user inputs the first subtitle reading mode key to store the mode to be performed first based on the above-described assumption, it is determined whether the key is the mode key in step 4b. In this case, since the key is a mode key, the process proceeds to step 4c to check whether the first mode flag is set. Since the first mode flag is set in step (4n) described above, it is determined that the result of the check in step (4c) is in the set state, and the process proceeds to step (4f) to perform the first subtitle read mode key data in the memory. And reset the first mode flag and then set a second mode flag for a second run mode storage operation.

After storing the first execution mode as described above, the user arbitrarily decides whether to store the second execution mode key data first or the first execution mode duration. If the user key-in the duration of the first execution mode (first subtitle reading mode) first, the microcomputer 10 recognizes this in step (4g) and checks whether the first time setting flag is set in step (4h). do. At this time, since the microcomputer 10 has already set the first time setting flag in step (4n) described above, the microcomputer 10 recognizes the set state of the first time setting flag and proceeds to step (4k) to the memory 40 in the first mode. The second time setting flag is set so that the execution time of the second time setting flag can be reset, and then the first time setting flag is reset and the execution time of the second execution mode can be stored.

Next, to store the second subtitle reading mode, which is the second execution mode, and the execution time of the mode, first enter the second subtitle reading mode key (4a) → (4b) → (4c) → (4d) → (4f). As described above, the second subtitle reading mode key data is recorded in the second execution mode storage area of the memory 40, the second mode flag is reset, and the third mode flag is set to perform the third repetition mode memory operation. Be prepared to do this.

Next, a time key for setting the execution time of the second subtitle reading mode is input to the memory 40 through (4a) → (4b) → (4g) → (4h) → (4i) → (4k). After recording the execution time of the second subtitle reading mode, the second time setting flag is reset and the third time setting flag is set.

Next, the memory operation of the execution time of the toggle mode and the toggle mode is (4a) → (4b) → (4c) → (4d) → (4e) → (4f), (4a) → (4b) → (4g ) → (4h) → (4i) → (4j) → (4k).

As described above, when the key definition operation of FIG. 4 is finished, the micro function 10 performs (4a) → (4i) → (4m) → (4o) when the user inputs the playback key. In step 4), it is recognized that the currently input key is the play key. In step 4p, the play mode flag is set, the first mode play flag is set, and the first play time flag is set. After recognizing that the current mode is set, in step 5b of FIG. 5, it is checked whether the first mode regeneration flag is set, and in step 4p, the operation recognizes that the first mode regeneration flag is set by the operation in step 4p. Read the first subtitle from.

At this time, the execution time of the first subtitle reading mode is checked through the same operation process as in the timer interrupt routine of FIG. 6, and the first playback time is displayed to indicate when the set time has passed through the time checking process of FIG. Since the completion flag is set and the first subtitle read mode is completed, the first play time flag is reset, and the second mode play flag and the second play time flag are set to the second subtitle read mode in the same manner as the first subtitle read mode. Read subtitles. After the second subtitle reading mode is completed, the second mode reproduction flag and the second reproduction time flag are reset, and the third mode reproduction flag and the third reproduction time flag are set to perform the toggle mode.

As described above, the present invention is advantageous in that it is possible to program a series of superimposor functions in advance and to perform continuous operations with one key operation when necessary.

Claims (2)

In the camcorder, the first steps (4m, 4n) of detecting the program key input, setting the program mode flag to set the program mode, and setting the first mode flag and the first time setting flag, and mode key input in the program mode. After detecting the second mode (4a, 4b, 4c, the second mode to sequentially record the plurality of modes by repeating the operation of setting the mode flag and recording the mode, reset the current mode flag and set the next mode flag) 4d, 4e, and 4f), and when the time key input is detected in the program mode, repeating the operation of setting the corresponding time flag, recording the time, resetting the current time flag, and setting the next set time flag. A third process (4g, 4h, 4i, 4j, 4k) for setting the execution time for each mode recorded in (4a, 4b, 4c, 4d, 4e, 4f), and detecting a playback key input and reproducing mode A lag is set to set a play mode and a first play flag for performing the first mode recorded in the second processes 4a, 4b, 4c, 4d, 4e, and 4f and a first play for counting the execution time thereof. Fourth processes 40O and 4P for setting a time flag and a mode recorded in the second processes 4a, 4b, 4c, 4d, 4e and 4f by sequentially detecting whether or not each mode reproduction flag is set in the reproduction mode. The superimposition is characterized by consisting of a fifth process (4I, 5b, 5c, 5d, 5e) to continuously reproduce by the time set in the third process (4g, 4h, 4i, 4j, 4k) Treatment method. 2. The flag of claim 1, wherein each mode playback flag and subsequent playbacks are sequentially executed to sequentially play the second mode to the last mode recorded in the second processes 4a, 4b, 4c, 4d, 4e, and 4f in the fifth process. And whenever the time flag completes the mode for a set time, the current execution mode flag is reset and the next execution mode flag is set.

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