KR0136092B1 - Method of automatically inserting title in video cassette recorder - Google Patents

Abstract

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Description

How to automatically insert headings in your VCR

1 is a schematic structural diagram of a VCR for explaining the method of the present invention.

2 is a flowchart showing the method of the present invention.

A of FIG. 3 is a flowchart showing a title display process.

b is a flowchart showing a process of storing title data.

4 is a view showing an assembly automatic title insertion method of the present invention.

5 is a diagram showing keys of a remote control related to a title.

6 a to d are heading related on-screen display state diagrams.

A to c in FIG. 7 are address partition diagrams of an array RAM and a nonvolatile RAM.

8 is a schematic configuration diagram of a conventional VCR.

9 shows a title insertion scheme in a conventional VCR.

＊ Description of symbols for main parts of the drawings ＊

1: Timer 2: Micom 3: Surge Compensator

4: instrument system 5: fluorescent display unit 6: on-screen display control unit

7 key input unit 8 remote control receiver 9 non-volatile RAM

The present invention relates to a method for automatically inserting a title in a VCR. In particular, the assembly function automatically inserts a desired title at the start and stop of an assembly so that the inconvenience of editing a title can be eliminated. A method for automatically inserting titles in a VCR.

In the related art, the configuration of the VCR having the assembly function includes a timer microcomputer 31 for counting capstan frequency and reel pulse as shown in FIG. A system microcomputer 32 for performing various control functions; A servometer 33 for controlling the speed and phase of the VCR mechanism system 34; An instrument system 34 for carrying out the tape, loading / unloading the tape, and the like; A fluorescent display unit 35 for displaying a function and time, etc .; An on-screen display control unit 36 for displaying various states with predetermined characters; A key input unit 37 composed of various keys; Interconnecting with the remote control receiver 38 for receiving a control signal output from the remote control is described as follows with reference to FIG.

First, when you want to edit the screen recorded on the tape from A, B, C, D to A ', B', C ', D', the beginning and end of each part is played by the assembly function while playing the VCR. In this case, the start and end portions are determined by using a real time counter or converting the capstan frequency (CFG) into a predetermined time, or by counting a reel pulse. .

If you want to insert a title such as A, B, C, or D on the recorded screen in this state, play the VCR again and correctly set the title insertion area as a jog or shuttle, and on-screen display (OSD). We went into the heading feature of, and created a heading, then performed a series of actions to replay the VCR.

In other words, in A, B, C, D, and E of FIG. 9, A ', B', C ', D', and E 'must be recorded once and then again recorded as A, B, C, D, and E. When inserting a heading while aging and editing with a manual (Manual), there is a very troublesome problem of inserting a heading because the part of the heading must be determined each time, the heading must be created and reproduced.

The present invention proposes to solve such a conventional problem, and inputs a predetermined program into a microcomputer and inputs predetermined title data into a non-volatile memory so that a predetermined title is automatically inserted into a required portion to reduce image quality. For the purpose of providing a method for automatically inserting a title in a VCR that can be prevented, the present invention will be described in detail below with reference to the accompanying drawings.

As shown in Figs. 1 and 2 a to d of the present invention, the method of the present invention is an assembly of the set switch SW ₁ , the automatic heading insertion switch SW ₂ , and the assembly enter switch SW ₃ of a conventional diode matrix configuration. A first step of setting an assembly program according to an operation state; A second process of performing an assembly program according to an operation state of the assembly start switch SW ₄ ; A third step of editing the title on the on-screen display according to whether the assembly flag AFLAG and the assembly enable flag AE FLAG are set; A fourth step of counting the capstan frequency or the reel pulse is performed through the timer microcomputer 1 so that a heading set in the on-screen display is automatically inserted. Compensation, 4 is instrument system, 5 is fluorescent display, 6 is on-screen display control, 7 is key input, 8 is remote control receiver, 9 is non-volatile RAM for title data, SP FLAG is starting flag, Ti is title index buffer, AM is the assembly menu number buffer, P (,) is the array RAM with assembly data, T (,) is the array RAM with title data, X, K, N is RAM buffer, AS FLAG is the assembly start flag, AF FLAG is the assembly start counter flag, AR FLAG is the assembly readiness flag, CT is the title display time counter, Ri is the assembly ready index buffer, CN is the capstan frequency or reel pulse It is a counter.

Further, in performing the second process, the title display process stores the contents of the array RAM T (χ, 5) in a predetermined register ADB as shown in a of FIG. After setting to the decryption mode, the address of the nonvolatile RAM 9 is set to the value of the register (ADB), the on-screen display character data is input, and it is detected whether the data is the end data. Character data is outputted to the on-screen display controller 6, and the value of the register ADB is increased to '1' and the non-volatile RAM (9) is output. ) Is a process of returning to setting a register (ADB) value to the value of the register (ADB). The process of storing the other in the nonvolatile RAM 9 stores the value obtained by multiplying the value stored in the RAM buffer N by 288 in the predetermined register ADB as shown in b of FIG. Is cleared, then the contents of the register ADB are stored in the array RAM T (N, 5), and then the nonvolatile RAM 9 is set to the recording mode, and then the register ADB is stored at the address of the nonvolatile RAM 9; Outputs the value, and then reads the on-screen display data from the on-screen display portion corresponding to the contents of the RAM buffer (K) and writes it to the nonvolatile RAM (9), and then registers the values of the registers (ADB) and the RAM buffer (K). Is incremented by '1', and then detecting whether the contents of the RAM buffer K is '287', and outputting the contents of the register ADB to the address of the nonvolatile RAM 9 when the contents of the RAM buffer K are not '287'. Returning to " 287 ", the end data is output to the nonvolatile RAM 9 to complete writing. Process is characterized by the returning constituted by any one after. The operation and effect of the method of the present invention made as described above will be described with reference to FIGS. 1 to 7.

First, the setting of the assembly program is performed by the operation of the assembly set switch SW ₁ , the automatic heading insertion switch SW ₂ , and the assembly enter switch SW ₃ by the conventional diode matrix configuration.

Therefore, the microcomputer (1) when a predetermined key is input, there is to do the initial assembly flag (AFLAG) is not set by detecting been set detecting applied to the assembly set switch (SW ₁₎ on, wherein the switch (SW ₁ ) Is also not on, it clears the flags and buffers related to the assembly program, sets the assembly flag (AFLAG), and executes the assembly execution routine.

However, if the assembly flag AFLAG is set and the switch SW ₁ is on, the state of each flag is detected by changing the value χ of the array RAM T (χ, LiE) from 0 to 7, and any If any one is '1', set the assembly enable flag (AE FLAG); if none, clear the assembly enable flag (AE FLAG), then clear the assembly flag (AFLAG) and return to the assembly execution routine. do.

In addition, when the assembly enter switch SW ₃ is turned on and the start flag flag SP FLAG is '0' while the assembly flag AFLAG is set, the start flag flag SP FLAG is set, and the assembly menu number AM is set. The current counter value (CN) is stored in the start counters P (AM, START) of the corresponding program. If the start flag (SP FLAG) is in the set state, it is cleared and then the stop counter of the program indicated by the buffer (AM). The current count value CN is set to P (AM, STOP). At this time, since there are eight assembly programs, the boundary counting is performed.

On the other hand, if the automatic title insertion switch SW ₂ is also on and the start flag SP FLAG is set, the current count value CN is stored in the array RAM T (Ti, 1), and T (Ti, 2) Enter '1' to indicate that the assembly automatic heading is set, and increase the value of the heading index buffer Ti, where Ti is the heading message number of the part set to the heading index.

Thereafter, the value of the set heading index is displayed through the fluorescent display unit 7, and then a process of editing the heading on the on-screen display is performed.

Meanwhile, the assembly program execution process is performed by the assembly start switch SW _4. If the switch SW ₄ is on, the microcomputer 1 detects whether the assembly start flag AS FLAG is set. If the assembly start flag (AS FLAG) is set at this time, the microcomputer 2 is set to the stop mode, the flag for the assembly execution is cleared, and the process returns to the title editing process, the assembly start flag (AS FLAG) is set. Otherwise, if the assembly enter flag (AE FLAG) is detected in the set state and the set state is set, the array RAM P (Ri, LiE) is stored as '1' while storing '0' in the assembly ready index buffer Ri and increasing it to 7. The application will be detected.

If P (Ri, LiE) is '1', the assembly start flag (AS FLAG) is set, the assembly start counter flag (AF FLAG) is set and the following process is performed. If '0', the assembly execution related flag is set. Clear all.

Also, if the assembly start flag AS FLAG is in the set state, it is detected whether the AF FLAG is in the set state. If the assembly start flag AS FLAG is not in the set state, the process returns to the process of detecting whether the assembly readiness flag AR FLAG is in the set state, and the AF FLAG is set. In the state, the count value of the start counter P (Ri, START) of the program corresponding to the index Ri to start the current assembly and the current capstan frequency and the repulse counter CN are compared.

That is, if P (Ri, START)> CN, fast forward (FF) to the count value to be started, then clear the assembly readiness flag (AR FLAG), return to the title edit mode, and return to P (Ri, START). If <CN, rewind the tape to the starting count value (REW), clear the AR FLAG and move to the title editing mode as above.If P (Ri, START) = CN, play the tape, and After the FLAG is set, clear the AF FLAG and go to the heading edit mode.

If AR FLAG is set, the count value of P (Ri, STOP) is compared with the current count value CN. If P (Ri, STOP) ≤ CN, the AR FLAG is cleared and the microcomputer 1 is cleared. After entering the stop mode, the currently executed assembly program is deleted to set P (Ri, LiE) to '0', and then Ri is increased to detect whether another program should be executed.

However, if P (Ri, STOP) &gt; CN,? Is set to '0' and the coefficient value of the title index buffer T (χ, 1) is compared with the current CN value, and if it is the same, is it set during the title assembly? T (χ, 2) = 1？), detects whether the headline is produced by the on-screen display (T (χ, 3) = 1？), and if the condition is met, performs the heading display routine as shown in FIG. In the display counter CT, the display time T (χ, 4) is stored.

In addition, T (χ, 1)

Claims (3)

A first step of setting an assembly program according to an operation state of an assembly set switch SW ₁ , an automatic heading insertion switch SW ₂ , and an assembly enter switch SW ₃ having a conventional diode matrix configuration; A second process of performing an assembly program according to an operation state of the assembly start switch SW ₄ ; A third step of editing the title on the on-screen display according to whether the assembly flag AFLAG and the assembly enable flag A.E FLAG are set; 4. A method of automatically inserting a title in a VCR, comprising a fourth process of counting a capstan frequency or a reel pulse through a timer microcomputer (1) so that a title set in the on-screen display is automatically inserted. The method of claim 1, wherein in performing the second process, the title display process stores the contents of the array RAM T (χ, 5) in a predetermined register (ADB) and then sets the nonvolatile RAM 9 in a decryption mode. After that, the address of the nonvolatile RAM 9 is set to the register (ADB) value, the on-screen display character data is inputted, and it is detected whether the data is the end data. And exit, but if it is not the end data, output the current on-screen display character data to the on-screen display control unit 6, increase the value of the register ADB by '1', and change the address of the nonvolatile RAM 9 A method for automatically inserting a title in a VCR, which comprises returning to setting the register (ADB) value. The method of claim 1, wherein the storing of the title data in the nonvolatile RAM (9) in performing the third process comprises storing a value obtained by multiplying the value stored in the RAM buffer (N) by 288 in a predetermined register (ADB). After clearing the RAM buffer K, the contents of the register ADB are stored in the array RAM T (N, 5), and then the nonvolatile RAM 9 is set to the recording mode, and then the nonvolatile RAM 9 The register (ADB) value is outputted at the address of, and the on-screen display data is read from the on-screen display portion corresponding to the contents of the RAM buffer (K) and written to the nonvolatile RAM (9). The value of the RAM buffer K is increased by '1', and then the contents of the RAM buffer K are detected to be '287', and if it is not '287', the register ADB is located at the address of the nonvolatile RAM 9. The process returns to the process of outputting the contents, and if it is '287', the end date is stored in the nonvolatile RAM 9. The title by automatic insertion method in a VCR, characterized by constituted by any process that returns after completing the recording power.

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