KR100274451B1 - The method for index mark/search and recording on the video tape - Google Patents

Abstract

PURPOSE: A method for setting/searching and recording a specific position of a video tape, is provided to perform conversion on an OSD(On Screen Display) screen in a present position, when the user performs a VISS(Video Index Search System) mark function to record the position of a desiring picture during VCR(Video Cassette Recorder) play, and to mark a VISS signal in control pulse of the corresponding position according to user's selection. And the method enables the user to confirm the setup/search and recording of the VISS mark signal through the OSD and perform corresponding operations. CONSTITUTION: If a user selects a VISS(Video Index Search System) function key in a key input put(110), a controller(100) drives an OSD(On Screen Display) processor(123). OSD character data are outputted in an OSD character through a video processor(124). The user confirms the displayed OSD character, and selects one of a position setup/delete function, a position search function and an OSD information recording function. If the user selects the position setup function, the controller(100) detects a VISS function key selected by the user, and controls a servo(120) to suspend a playing operation. And the controller(100) detects a traveling length to a present screen and a control pulse count value to the present position, for record in a memory(121). The recorded data are delivered to the OSD processor(123) and converted into OSC character data, then displayed on a screen. And the controller(100) drives a VISS recording/detecting unit(115) to record a VISS signal in a control track for a predetermined time, and drives the servo(120) to continue a playing operation.

Description

How to set / search / record video tapes

The present invention relates to a VCR, and more particularly, when there is a part to be watched again while playing a tape using a VCR, a Vis (Video Indes Search System) mark is generated by a user's key operation. The present invention relates to a method of setting and searching for a specific position of a video tape to record a current position on a tape and to perform playback by searching and moving a corresponding bismark when a user wants to go to a recorded position later.

The VCR equipped with the conventional bismark function is used when a user wants to find a screen of a desired content in a short time, and the duty ratio of the control pulse corresponding to the screen to be set is fixed for a predetermined time (2 to 3 seconds). By recording differently, the user sets the desired position of the screen.

If the user wants to re-view the screen set as described above while watching the video tape, the user performs the vis signal search function to search for the marked vis lake as described above and move to the desired screen. Will play.

However, such a conventional VCR tape for recording / erasing of the non-signal is possible only when there is a safety tab to prevent the VCR from being erased. There was a problem with not setting the location.

Therefore, the present invention is to improve the above-mentioned problems of the prior art, to record the position of the desired screen during the VCR playback regardless of the presence or absence of the safety tab, when performing the bismark function On Screen Display (On Screen) Display: Hereafter, abbreviated as "OSD", the purpose of the present invention is to provide a specific position setting method of the video tape to mark the bis signal on the control pulse of the corresponding rain at the user's choice.

Another object of the present invention is to search each vis signal recorded on the videotape and display each position marked with the vis signal through the OSD as well as to record in the memory, so that when the user wants to check it through the OSD screen at any time It is an object of the present invention to provide a method of searching for a specific position of a video tape that can be played at a high speed to a selected position.

Still another object of the present invention is to search for the selected Bismarck information recorded on the videotape by OSD text on the videotape directly by the user's selection, and then switch to the recording mode after moving to the corresponding position by searching the selected Bismarck. It is an object of the present invention to provide a method of recording a specific position of a video tape, which records and records the non-speech information of the video tape in a predetermined frame as OSD characters.

The specific position setting process of the videotape to achieve the above object of the present invention includes a first process of setting the position through the OSD when the user wants to store the position of the recorded specific screen of the videotape; And a second process of displaying the position set through the OSD and simultaneously storing the position set on the screen and storing the recognition mark in the corresponding position of the video tape.

In order to achieve the above-described object of the present invention, a specific position search process of a videotape is performed when a user wants to search a specific screen of a videotape. A first step of displaying on the screen by OSD text; And a second process of returning to the initial position when the searching of each recognition signal recorded on the video tape is completed or terminated by the user.

In addition, the recording process of a specific position of the video tape to achieve another object of the present invention is to record the OSD screen at the position of the bis mark recorded on the video tape, the user checks the OSD character displayed on the screen and A first process of selecting a location of the; A second process of searching for a vis signal recorded at a position of the vis mark selected by the user and moving at high speed; After moving to the position where the service signal is recorded, a third process of recording a corresponding OSD screen by switching to a recording mode is performed.

1 is a block diagram of a specific position setting / searching and recording apparatus of a video tape for implementing the present invention.

2 is an exemplary view of displaying on a screen to perform a specific position setting / search and recording function of a video tape according to the present invention.

3A and 3B are flowcharts of a specific position setting / search and recording process of a video tape according to the present invention.

<Explanation of symbols for main parts of drawing>

100: control unit 111: reel sensor

112: reel counter 113: control pulse detection unit

114: control pulse counter 115: vis recording / detection unit

121: memory unit 123: OSD processing unit

124: image processing unit 125: video recording unit

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

1 is a block diagram of a specific position setting / searching and recording apparatus of a video tape for implementing the present invention. As shown therein, a reel sensor 111 for detecting a driving state of a video tape when a VCR is driven; A reel counter 112 for calculating a running length of the video tape according to the value detected from the reel sensor 111; A control pulse detector (113) for detecting a control pulse (CTL) recorded on a control track of the video tape; A control pulse counter 114 for counting the control pulses detected by the control pulse detector 113; A vis recording / detecting unit (115) for recording a vis signal in accordance with a vis control signal on the control track of the video tape and detecting the recorded vis signal; When the user wants to perform a specific position setting / deletion, search, and recording of the tape, the user senses this through the key input unit 110 and receives each count value from the reel counter 112 and the control pulse counter 114, A control unit 100 for controlling the traveling speed (Play, Still, CUE, REW, etc.) of the tape through the unit 120 and generating an image and an OSD control signal; A memory unit 121 that converts the driving length to a location selected by the user in time under the control of the controller 100 and stores the converted length; An OSD processing unit 123 for processing data stored in the memory unit 121 as OSD characters under control of the control unit 100; An image recording unit 125 for storing an OSD image signal under the control of the controller 100; Under the control of the controller 100, the OSD character output from the OSD processing unit 123 is recorded in the image recording unit 125, and the OSD data output from the image recording unit 125 or the OSD processing unit 123 is imaged. The image processing unit 124 outputs a screen through the output unit 126.

Referring to the operation of the present invention configured as described above with reference to Figures 1 to 3 as follows.

First, the VCR user selects the Vis function key when the VCR user wants to mark the current position or a specific position desired by the user while watching the video tape, and later checks the marked position or moves quickly to the marked position.

That is, when the user selects the vis function key provided in the key input unit 110, the controller 100 detects the driving function key to drive the OSD processing unit 123, and the OSD text data driven by the OSD processing unit 23 is stored in the image processing unit ( 124) to output the video as OSD text.

After checking the OSD text displayed on the screen, the user selects a desired function among functions such as location setting / delete, location search, and OSD information recording.

If the user wants to set the current position during VCR playback in more detail with reference to Figure 3 as follows.

First, when the user selects a vis function key, the controller 100 detects the control key and then controls the servo unit 120 to stop the playback, and travels to the current screen through the reel sensor 111 and the reel counter 112. While detecting the length, the control pulse count value up to the current position is detected through the control pulse detector 113 and the control pulse counter 114.

In this way, the reel count value and the control pulse count value detected by the controller 100 are recorded in the memory unit 121. At this time, the reel count value is converted into a time when driving at a normal reproduction speed and recorded.

The data recorded in the memory unit 121 is transferred to the OSD processing unit 123 under the control of the control unit 100 and converted into corresponding OSD text data, and then through the image processing unit 124 and the image output unit 126. It is displayed on the screen as shown in.

Meanwhile, the controller 200 drives the vis recording / detecting unit 115 to record the vis signal for a predetermined time in the control track, and then drives the servo unit 120 to continuously perform reproduction.

Next, when the user wants to search the position of each screen previously set in more detail as follows.

If the user selects a vis function key during VCR playback, the control unit 100 detects it and first controls the servo unit 120 to pause the playback, and drives the OSD processing unit 123 to access the service unit from the memory unit 121. Read screen data about function key operation. The displayed OSD data displays an OSD screen through the image processor 124 and the image output unit 126 according to a control signal of the controller 100.

When the user selects the vis search function after checking the OSD characters displayed on the screen, the user detects the vis signal recorded in the control track.

That is, as the vis search function is detected through the key input unit 110, the controller 100 controls the servo unit 120 to drive the video tape at high speed, and the control pulse detector 113 and the control pulse counter. The control pulse up counts through 114.

If a vis signal is detected, the servo unit 120 is controlled to stop running of the tape, and the counter of the control pulse is stopped, and the driving length to the current position is converted into time to the memory unit 121. Record it. As such, the vis signal detection result recorded in the memory is displayed on the screen as OSD text data through the OSD processor 123 and the image processor 124 under the control of the controller 100.

If the user wants to perform the search continuously, the servo unit 120 controls the high speed driving and then searches for the vis signal through the vis signal recording / detecting unit 115. When the vis signal is detected, the vis signal detection result is recorded in the memory unit 121 and displayed on the screen as an OSD character.

In this manner, until the tape is finished, each vis signal recorded on the tape is detected and recorded in the memory unit 121 and displayed on the screen through the OSD processing unit 123 and the image processing unit 124.

If the user stops the vis signal search function during the vis signal search, the control unit 100 detects this to stop the operation of the vis record / detector 115 and controls the servo unit 120 to perform the vis signal search function. It will return to the position where it started to continue playing the tape. At this time, the reel counter 112 and the control pulse counter 114 to perform the down count.

Next, a case in which information about a bis signal recorded on a currently loaded video tape is to be recorded on a video tape will be described in detail.

As the user selects the vis signal recording mode through the key input unit 110, information on the vis signal recorded on the currently loaded video tape, that is, the result of setting and searching the vis signal is recorded at the position where each vis signal is recorded. Will be performed.

First, as the vis signal recording mode is selected, the controller 100 controls the servo unit 120 to drive the tape at high speed, and the vis recording / detecting unit 115 searches for the vis signal recorded on the control track.

When the non-signal is detected, the controller 100 controls the servo unit 120 to stop the tape driving, and then reads the OSD data regarding the non-signal recording information of the currently loaded video tape from the memory unit 121 and displays the OSD. It outputs to the processing part 123. The OSD processing unit 123 transmits the character font corresponding to the read data to the image processing unit 124, and the image processing unit 124 displays the screen on the screen through the image output unit 126 and controls the control unit 100. Thereby recording the bis signal recording information inputted to the image processing unit 126 at the current position of the tape through the image recording unit 125.

That is, the non-signal recording information stored in the memory unit 121 is recorded on the current video tape by the image recording unit 125. At this time, the OSD screen recorded on the tape is fixed so that it is not displayed on the screen when the tape is being played at the normal speed. By recording in a frame, it does not disturb the VCR viewing.

In this way, when the user plays back the tape on another VCR, the user can simply check the service recording information recorded on the tape, and then select the move to the position where the non-signal is recorded. It moves at a high speed.

In addition, when the vis signal recorded on the control track of the video tape is to be deleted as described above, by selecting the vis signal recording position displayed on the screen when performing the vis signal setting, searching, and recording function, the user deletes the vis signal. Moves to the selected position at high speed, and then detects the vis signal through the vis recording / detecting unit 115 and then deletes the vis signal.

As described above, in the present invention, when a VCR user wants to set / delete a vis mark at a specific position while searching a video tape, to search for and check a recorded vis mark, or to record the vis mark information on the video tape, the OSD character is displayed. Display it on the screen and allow the user to confirm it and then perform the corresponding action, so that the user can record it on the tape at any time during playback of the videotape. Go to to play. In addition, even in a video tape without a safety tab, the user can perform a function such as recording / deleting, searching, or recording a bismark at any time.

Claims (5)

If the user wants to memorize the position of the recorded specific screen of the videotape, setting the position through the OSD; And a second process of displaying the position set through the OSD and simultaneously storing the position set on the screen in a memory, recording a recognition mark at a corresponding position of the video tape, and returning the same. The method of claim 1, wherein the second process comprises: converting the selected position into a time according to a count value of a reel counter to display and record the OSD character; Storing the displayed OSD character; And recording the Vis signal at the position indicated by the OSD character, and then continuously playing the video signal. If the user wants to search for a specific screen of the video tape, a first step of quickly searching each recognition signal recorded on the video tape and displaying the detected recognition signal positions on the screen as OSD characters; And a second process of returning to the initial position when the searching of each recognition signal recorded on the video tape is completed or terminated by the user. If the user wants to record the OSD screen at the position of the recognition signal recorded on the video tape, the first step of the user checking the OSD characters displayed on the screen and selecting the position of the recognition signal; A second step of searching for a recognition signal recorded at a position of the recognition signal selected by the user and moving at a high speed; And a third process of recording the corresponding OSD screen by moving to a recording mode after moving to the position where the recognition signal is recorded. 5. The recording mode of claim 3, wherein the recording mode of the third process records the predetermined information frame so that the information on the recognition signal recorded on the video tape is not displayed when the information is reproduced at a normal speed. Way.

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