KR0176454B1 - Record/reproduction device and method of tape with a password of each program - Google Patents

Abstract

The present invention adds a password registration function to a video library system such as a video cassette recorder or a camcorder such as a video cassette recorder or a camcorder. The present invention relates to a password search system and an implementation method thereof.

In the present invention, it is possible to record and play back the ID code, which is the tape indexing information and the index code, and also the password during the retrace period, so that only the portion where the password is inputted can be searched and played back or recorded, so that the top secret must be maintained. The tape was made invisible to third parties.

Description

Password recording / playback apparatus and method for each program

1 is a block diagram showing an embodiment of a tape recording / playback apparatus to which a password is given for each program according to the present invention.

2 is a main flow chart for performing a tape reproducing apparatus according to the present invention.

3 (a) to 3 (e) are subroutines and auxiliary flow charts of FIG.

4 (a) and 4 (b) are state diagrams of the library on-screen display.

* Explanation of symbols for main parts of the drawings

10: key matrix 20: sync separator

30: data slicer 40: decoder

50: memory 60: on-screen display

70: mixer 80: adder

MICON: Micom MO: Motor

The present invention relates to a product in which a video tape is used, such as a video cassette recorder (hereinafter referred to as a VCR) or a camcorder, and more specifically, to a video library system (hereinafter referred to as a VLS). Password) The present invention relates to a tape recording / reproducing apparatus and method for which a password is provided for each program in which searching and reproducing and recording are possible only for a portion where a password is input.

VLS allows you to know information about any video tape (hereafter referred to as tape). For example, information about which of the tapes is the number of tapes, that is, what information is recorded on the tape registered by the user at the time of recording on the tape, and which information is recorded in the set. The above information about the tape in the memory is also registered on the tape.

And VLS is described in detail in patent application 13756 (1992).

On the other hand, the current system for recording and using passwords is television, for example, and the VCR does not have this function. Therefore, VCR has a function to prevent copying of the tape in the case of important tapes, but it does not have a function to prevent playback of the tape.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to register, input, and delete a password in a VLS system. An object of the present invention is to provide a password search system and an implementation method thereof.

A feature of this invention for achieving this object is, in a tape recording apparatus, a tape ID code, a format in which a root password corresponding to the ID code is to be recorded, a tape indexing code for each of a plurality of programs to be recorded on the tape, and A memory unit storing a format in which an indexing password and program information corresponding to an indexing code is to be recorded, a display unit displaying a format stored in the memory unit, and the tape ID code, a root password, and a tape according to a format displayed by the user in the display unit. An input unit for inputting an indexing code, an indexing password, and program information, and controlling the tape ID code, a root password, a tape indexing code, and an indexing password to be recorded on a tape according to the input of the input unit, and the contents inputted to the input unit are stored in the memory. Control to save Is a tape recording apparatus by the program, the password is given to a control unit.

Another aspect of the present invention is to reproduce a tape on which a tape ID code, a root password corresponding to the ID code, a tape indexing code for each of a plurality of programs to be recorded on the tape, and an indexing password corresponding to the indexing code are recorded. An apparatus for performing the above, comprising: a memory unit for storing an ID code, a root password, a tape indexing code, an indexing password, and a program information recorded on the tape; a display unit for displaying a root password and an indexing password among contents stored in the memory unit; A user inputting the root password and the indexing password according to the contents displayed on the display unit, and reproducing the entire program contained in the tape when the root password inputted at the input unit and the root password recorded on the tape match.Air, and is when the indexed password recorded on the indexed password as tape input from said input unit matches the tape reproducing device password is given by a controller for controlling to play the corresponding program to program the indexing password.

Another aspect of the present invention is a memory unit for storing a tape ID code, a root password corresponding to the ID code, a tape indexing code for each of a plurality of programs recorded on the tape, an indexing password corresponding to the indexing code, and program information. A tape reproducing method of an apparatus for reproducing a tape having the code and the password recorded therein, the tape reproducing method comprising: a first detecting a tape ID code, a root password, a tape indexing code, and an indexing password recorded on a tape when the tape is inserted into a set; Step 2, if each code and password is detected in the first step, the second step of reading the information stored in the memory unit and displaying the contents except the root password and the indexing password, according to the displayed content of the second step A third step of inputting a password; Inputting an indexing password according to the displayed contents of the fourth step and the second step of controlling to play the entire program included in the tape when the matched password and the root password recorded on the tape match. A fifth step and a sixth step of determining whether or not the password inputted in the fifth step and the indexing password recorded on the tape match, and if so, controlling to play a program corresponding to the indexing password. A tape playback method is provided with a password.

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

1 is a block diagram showing an embodiment of a tape recording / reproducing apparatus for which a password is given for each program according to the present invention, wherein horizontal and vertical synchronization signals (H-sync) and (V-sync) are input from an input composite video signal. A microcom (MICOM) is connected to the synchronous separator 20 for separating the number of horizontal and vertical synchronous signals input from the synchronous separator 20, and an index code indicating a tape ID coder, which is a tape number, and a recording start point. Determines the vertical retrace period in which the ID code and password are recorded, that is, the vertical retrace period, and outputs the vertical retrace signal (V-BLK) of the vertical retrace period containing the ID coder and password to control recording and detection of the ID code and password. .

In addition, the MICOM is connected to a data slicer 30 that separates the ID code and the password, which are loaded at the time of recording, from the composite video signal when the tape indexing information and the password are output on the MICOM. The decoder 30 is connected to the slicer 30 to decode the ID coder and the password from the data slicer 30 into a signal that can be recognized by the MICOM.

On the other hand, the MICOM is driven by a control voltage and a control signal F / R from the memory 50 and the MICOM MICOM which store a library and a password corresponding to an ID code which increases by one every time recording. A motor MO is connected, and a key matrix 10 equipped with a search key, a clear key, a library on / off key, a character key, and the like is also connected. The key matrix 10 can replace a function with a mouse. have.

In addition, the MICOM displays an ID coder and password from the MICOM and a library corresponding to the ID coder and the password extracted from the memory 50 according to the key press of the key matrix 10. The display unit 60 is connected, and the on-screen display unit 60 connects the mixer 70 to synthesize the on-screen display signal from the on-screen display unit 60 and the composite video signal.

On the other hand, the adder 80 is connected to the ID code output terminal ID of the MICOM, and the combined ID code outputted to the ID code output terminal ID and the input external video signal are recorded.

FIG. 2 is a flow chart for performing a tape reproducing method for which a password is provided for each program according to the present invention, and performing step (100) of determining whether a tape is inserted into a set, and determining the result of the step (100). If the image output is muted and a virtual play (Short Play) step 200 is performed.

After performing the step 200, the contents of the library corresponding to the tape ID code are displayed on the screen display unit 60 read from the memory 50 to turn the library on. In step (400), if it is determined that the library is in the on-state state, it is determined whether the library is in the on-state state. In step 500, an operation corresponding to a key is performed.

If it is determined in step 400 that the library is not in the on state, the library on subroutine 600 is performed to turn off the display of the library contents according to the current state.

According to the present invention made as described above, the tape library and password search can be performed by recording and reproducing the ID code and password, which are the tape indexing information, during the vertical retrace period of the video signal, that is, the vertical retrace period. Root) Displayed only when the password is entered correctly. In this case, all parts of the tape can be recorded and searched.

If the user inputs only the password for the index code 2 in FIG. 4 (a) showing the state of the library on-screen display, only the jealous part can search, play, and record. And ____ indicates that the password is already registered ??? Indicates that a password has not yet been registered.

On the other hand, in FIG. 4 (b), only the passwords for the index code 2 and the index code 3 are input, so only jealousy and MacGyver can search and play and record the contents of the tape. If the tape is inserted again after inserting another tape, the password must be re-entered.

Referring to FIG. 1, first, the horizontal and vertical synchronous signals of a composite video signal input from a tuner or a video signal source (not shown) in the synchronous separator 20 are inputted to the MICOM.

The MICOM counts the horizontal and vertical synchronous signals inputted from the synchronous separator 20 to detect the vertical retrace period in which the ID code and password are loaded from the vertical retrace signal, and loads the ID code and the password to the data slicer 30. Outputs the vertical retrace signal.

At this time, the data slicer 30 separates the ID code and password loaded at the time of recording from the input composite video signal and outputs it to the decoder 40, and the decoder 40 can recognize the signal by MICOM. Decode the signal and output it to MICOM.

Then, the MICOM draws a library corresponding to the ID code from the memory 50 and outputs it to the on-screen display unit 60, and the on-screen display signal from the on-screen display unit 60 is It is synthesized with the composite video signal applied to the mixer 70 and displayed on the screen to display the tape indexing information, and also displays the password as the user presses the key matrix 10. In this case, the white signal and the color signal input to the mixer 70 control the color of the portion displayed on the screen on the screen.

Meanwhile, the tape indexing information and the password to be displayed through the on-screen display unit 60 are displayed as shown in FIGS. 4A and 4B. Here, the user can search and clear the search key of the key matrix 10. Various function keys such as keys, character keys, and library on / off keys can be used to select and play a desired library, to clear or to change ID codes and passwords.

Unlike the above, when the ID code and the password are to be recorded on the tape, first, if the tape is a new tape, that is, nothing is recorded, no ID code for the new tape is stored in the memory 50. Therefore, the ID code is not drawn out from the memory 50 and output, and MICOM automatically outputs the ID code to the ID code output terminal ID, so that the external video signal (for example, a TV broadcast signal) is added to the adder 80. It is synthesized and recorded, and the password must be input by the user. The ID code and password are also stored in the memory 50, where the tape ID code and the index code are recorded in the form of 01 or 0001.

On the other hand, when the tape is not a new tape, since the ID code is stored in the memory 50, MICOM pulls out the ID coder and increases the index code of the extracted ID code by one. In this case, the index code is increased every time recording.

Unlike the above ID code, if the password is recorded by the user, the user must enter the same password as the password first recorded when the tape is played next time. In the case of inputting, since the password is stored in the memory 50, the same password as that password can be used for playback. If the password is not input, the password can be played without inputting the password.

The above process will be described in more detail below with reference to a flowchart.

First, in FIG. 2, which is a main flow chart for performing a password-provided tape reproducing method for each program according to the present invention, an ID coder and a corresponding library are displayed on-screen according to whether a tape is inserted or a password input and To perform the operation according to the playback. That is, the MICOM determines whether the tape is newly inserted (step 100), and if the tape is inserted, mutes the video output and automatically performs the virtual play (200).

In operation 300, the library contents corresponding to the tape ID codes are displayed on the screen display read from the memory 50 and brought into the library on state.

On the other hand, if it is determined in step 100 that the new tape is not inserted, it is determined whether the library is in the on state (step 400). If it is determined that the library is not in the on state, the library on subroutine 600 is performed (step 510). If the input key is not a direction key, it is determined whether the character key is a character key, and if the character key is input, the corresponding character is output on the current cursor and stored in the memory 50 (520).

If the input key is not a direction key and a character key, it is determined whether the key is a clear key, and if the key is a clear key, a step 530 of clearing the corresponding part is performed. Turning off 540 is performed. In step 540, a step 541 of determining whether an input key is a Ten Key is performed, and if it is determined that the key is Ten Key in step 541, a step 542 of determining a password input position is performed. If it is determined in step 542 that the password has been input, it is determined whether the password has already been input, and a step 543 of performing a subroutine SUSU that indicates that the password has already been input is performed. .

If it is determined in step 543 that the password has not been entered, the operation 544 of determining whether the password has been completed is performed. If it is determined in step 544 that the password has been completed, the password is stored in the index. Step 545 is performed.

On the other hand, if it is determined in step 541 that the key is not a ten key, it is determined whether it is a library key, and if it is not a library key, a step 546 of performing a subroutine SUB2 indicating fast searching and searching impossible is performed. If it is determined in step 546 that the library key is determined to be in a library on state (547), and if it is determined in step 547 that the library is on, performing a step (548) of turning off the display of the library, and If it is determined in step 547 that the library display is turned off, step 548 of turning off the library display is performed. If it is determined in step 547 that the library is not turned on, step 549 of turning on the library display is performed.

Then, the subroutine SUB1 performs step 550 of determining whether a password input is completed, and if it is determined in step 550 that the password input is completed, whether the previously stored password and the currently input password are the same. If it is determined that it is not the same, step 551 of displaying the home position, that is, ____, is performed.

In addition, the subroutine SUB2 performs step 552 of determining whether the search key is a search key, and if it is determined in step 552, performs step 553 of determining whether the corresponding index number is searchable. If it is determined in step 553 that the corresponding index number is not searchable, performing step 554 of displaying the search impossible, and performing a fast search if it is determined in step 553 that the index number is searchable ( 555).

Meanwhile, the library on subroutine 600 performs a subroutine SUB3 for displaying a corresponding password input display according to a library on state and determines whether a search state has been performed (610). If it is determined that the search state has been performed in step 620, it is determined whether the current index number matches the index number to be searched.

If the index number matches in step 620, the operation 630 of turning off the display of the library content is performed, and the operation 640 is performed after performing the step 630.

In addition, the subroutine SUB3 performs step 650 of determining whether the library is in the on state. If it is determined in step 650 that the library is in the on state, the subroutine SUB3 displays the in-situ indication that the password has already been registered. Otherwise, a step 660 of displaying ??? is performed, and if it is determined in step 650 that the library is not in an ON state, the flow returns to the main flow chart.

On the other hand, a detailed description of recording and reproducing the ID code of the tape ID code and the index code during the vertical retrace period is described in detail in the above-mentioned 1992 Patent Application No. 13756, which records and records the password according to the present invention. The reproduction also uses the vertical retrace period in the same manner as the recording and reproduction of the ID code, so that its detailed description is weakened.

As described above, the present invention separates the horizontal and vertical synchronous signals from the composite video signal, and outputs the vertical retrace signal containing the ID code and password recorded by the MICOM to the data slicer 30 when recording the data. The slicer 30 separates the ID code and the password from the composite video signal and outputs them to the decoder 40.

Accordingly, when the decoder 40 decodes the ID code and the password into a signal that can be recognized by MICOM, and outputs them to the MICOM, the MICOM outputs the ID code recorded at the time of recording from the memory 50; The library corresponding to the password is extracted and output to the on-screen display unit 60. Here, the display of the password is displayed only when the password recorded by the user on the tape matches the password currently input.

The on-screen display signal from the on-screen display unit 60 is combined with the composite video signal by the mixer 70 and output to the screen for reproduction.

The tape ID code, the index code, and the password displayed on-screen by the on-screen display signal can be selected or cleared by the various function keys of the key matrix 10 so that they can be reassigned.

As described above, the present invention adds a password registration function to the VLS system so that a third party can view the contents of a tape that must maintain top secret by not allowing recording and searching and playback if the password does not match during recording or search and playback. It would not be.

Claims (4)

A tape recording apparatus capable of recording a password on a tape, comprising: a tape ID code representing a unique number of a tape, a root password associated with the tape ID code, and an indexing code that is a unique number of each of a plurality of programs recorded on the tape A memory unit for storing an indexing password for controlling whether to play each of the programs and information related to the contents of each of the programs; A display unit for displaying a data in a predetermined format so that a user inputs data to be stored in the memory unit; An input unit for inputting a tape ID code and a root password for the tape and an indexing code, indexing password, and content information for each program recorded on the tape according to the format displayed on the display unit; And among the data input by the input unit, only the tape ID code and the indexing code for each program are recorded on a tape, and the tape ID code and the root password and the indexing code for each program are stored in the memory unit. And a controller for controlling to record both the indexing password and the contents information. A tape reproducing apparatus capable of controlling playback of a tape in accordance with a password recorded on a tape, comprising: a tape ID code representing a unique number of a tape, a root password associated with the tape ID code, and a plurality of programs recorded on the tape, respectively. A memory unit for storing an indexing code which is a unique number of an index, an indexing password for controlling whether each of the programs is played, and information related to the contents of each of the programs; The tape ID code and the indexing code and the content information for each program are displayed except for the root password and the indexing password among the information stored in the memory unit, and the root password associated with the tape ID code, and each program. A display unit for displaying in a predetermined format for inputting an indexing password associated with the indexing code of the apparatus; An input unit for inputting a root password or an indexing password according to contents displayed by the user on the display unit; The contents inputted from the input unit and the contents stored in the memory unit are compared with each other, and if the root password inputted from the input unit matches the root password stored in the memory unit, playback of the tape is allowed, and the inputted input unit is inputted from the input unit. And a control unit for controlling reproduction of the program if the indexing password input for each program matches the indexing password stored in the memory unit. A tape ID code representing a unique number of a tape and a root password associated with the tape ID code, an indexing code which is a unique number of each of a plurality of programs recorded on the tape, an indexing password for controlling whether each of the programs is played, and the A tape ID code indicating a unique number of a tape and an indexing code which is a unique number of each of a plurality of programs recorded on the tape, including a memory unit for storing information related to the contents of each program. 1. A method comprising: detecting a tape ID code recorded on a tape when the tape is inserted into a set; A second step of detecting a root password stored in the memory unit corresponding to the tape ID code detected in the first step, and determining whether or not the password matches the password input by the user; A third step of displaying an indexing code for programs recorded on the tape and corresponding program information if the passwords match in the second step, and receiving an input of an indexing password for the program from the user; A fourth step of determining whether the password input in the third step and the indexing password stored in the memory unit match; And a fifth step of controlling to select and play only a program corresponding to the password if the passwords match in the fourth step. 4. The tape reproducing method of claim 3, further comprising displaying a non-playback message if the passwords do not match in the fourth step.