KR100203581B1 - Designating control device of partial replay field of video tape and method thereof - Google Patents

Abstract

The present invention provides an apparatus and method for designating a partial playback region of a video tape that allows playback to be limited to a recording surface in a partly designated start area and end area in accordance with a tape time calculation operation for a video tape.

Accordingly, the present invention is directed to the driving of the tape driving mechanism 12 in accordance with the mode switching of the mode switching unit 2 to the playback mode in the loading state of the video tape 10 by the tape loading / unloading unit 14. The image information from the video tape 10 read out from the signal recording / reading unit 8 by this means is reproduced by the reproduction signal processing means 16 and 18 to be reproduced by the signal output unit 20 to the image output apparatus. A video tape recorder for outputting and reproducing, comprising: control signal reading / counting means (22, 24, 26) for reading a control signal recorded on the video tape (10) and counting the number of pulses; Function setting means (28) for performing key input to designate a plurality of recording areas for the recording surface of the < RTI ID = 0.0 >

Data storage means (30) in which setting data for setting the recording surface of the video tape (10) corresponding to the plurality of recording areas designated by the function setting means (28) based on the count value of the control signal is stored; Time-measuring means 32 for counting the travel time of the videotape 10 based on the count value of the control signal from the videotape 10 counted by the read / counting means 22, 24, and 26; According to the recording area designation of the video tape 10 by means 28, the recording area is set in accordance with the time indicated by time-of-time by time-traveling the video tape 10 based on the count value of the control signal, and its function. Control means 34 for controlling repetitive reproduction of the designated recording area in accordance with the setting of the repetitive reproduction function by the setting means 28, and the function setting means 28 under the control of the control means 34; Height of Display signal processing means (36) for generating display information for screen display of a specified state of the reproduction area by input; A first step of designating a predetermined recording area of the video tape 10 by a key setting operation of the function setting unit 28; and counting a control signal of a recording surface corresponding to the recording area of the designated video tape 10 by specifying A second step of detecting the tape time of the recording area and checking the travel time of the video tape 10, and on the designated recording area of the video tape 10 by a key setting operation of the function setting unit 28; When the repetitive playback function is set, a third step of recognizing a designated recording area based on the checked travel time of the videotape 10 and replaying the designated recording area repeatedly is characterized in that it comprises a third step.

Description

Device for controlling the partial playback area of video tape and its method

The present invention relates to an apparatus and method for designating a partial playback region of a video tape, and more particularly, to a video tape recorder, in which a predetermined recording surface is partially specified among all recording surfaces of a video tape, and playback is limited to the designated partial region. A partial playback region designation control apparatus for a video tape and a method thereof are provided.

Currently, in a video apparatus capable of reproducing and recording such as a video tape recorder (VTR) and the like, video information recorded on an information recording medium such as video tape is read out through a read operation of the magnetic head. As a signal, a video is output on the CRT of the television.

In addition, in the case where a general recording operation is to be performed through this video apparatus, the television broadcasting signal of a selected television broadcasting program of a predetermined channel selected through a tuner of the television is input, and then the image signal processing and audio signal processing are performed. The video signal and audio signal are recorded on the information recording surface of the information recording medium through the operation.

In particular, in a video device equipped with such a recording function, when a user inputs a recording schedule such as a broadcast date, a broadcast time, and a channel number of a predetermined television broadcast program, the preset broadcast date and broadcast time have elapsed. As a result, a reservation recording function is added so that a television program of a selected channel is automatically recorded on an information recording medium such as a video cassette tape, so that the recording function can be performed even in the absence of the user.

In a video apparatus such as a video tape recorder, a rewind (rew) function or a fast rewind (Fast) function is used to reproduce a specific recording surface of the entire recording surface during reproduction of a video tape on which predetermined video information is recorded. FO (Fward) function not only makes it possible to quickly go to the desired recording surface, but also rewinds (Que) or fast-winding (Fev) functions to quickly find the desired recording surface while playing video information on the screen. I have to go.

However, such a video tape recorder rewinds / fast forwards or rewinds / fast forwards / plays back a specific recording surface in order to find and repeatedly play a desired recording surface while playing all the video information recorded on the recording surface of the video tape. Not only does the viewer have to manually search for and reproduce the data manually, but when there are a plurality of specific recording surfaces to be repeatedly reproduced, the viewer takes a long time to find the recording surfaces.

Accordingly, the present invention has been made in view of the above circumstances, and the partial playback area of the video tape allows playback to be limited to the recording area in the start area and the end area specified in part according to the tape time calculation operation for the video tape. The purpose is to provide a designated control device.

It is another object of the present invention to provide a partial playback region designation control method of a video tape that allows playback to be limited to a recording surface in a partly designated start area and end area in accordance with a tape time calculation operation.

In order to achieve the above object, according to the apparatus for designating a partial playback region of a video tape according to the present invention, in the loading state of the video tape by the tape loading / unloading unit, the tape is changed in accordance with the mode switching to the playback mode of the mode switching unit. In a video tape recorder in which video information from a video tape read from a signal recording / reading unit by driving of a driving mechanism is reproducibly processed by a reproduction signal processing means and outputted to a video output device through a signal output unit for reproduction. Control signal reading / counting means for reading the control signal recorded on the video tape to count the number of pulses, and function setting means for performing key input for reproducing and repeatedly designating a plurality of recording areas for the recording surface of the video tape. The ratio corresponding to the plurality of recording areas designated by the function setting means. Running of the video tape on the basis of the count value of the control signal from the video tape counted by the data storage means storing the setting data set on the recording surface of the O-tape based on the count value of the control signal and the control signal reading / counting means. According to the recording area designation of the video tape by the time-keeping time means and the function setting means, the recording area is set according to the time indicated by the time-of-time display of the video tape based on the count value of the control signal. Control means for performing repetitive reproduction of the designated recording area in accordance with the setting of the repetitive reproduction function by the function setting means; and specifying a state of the reproduction area by key input of the function setting means by the control means. A ratio comprising display signal processing means for generating display information for screen display It provides a reproduction section specifying region of five tape control unit.

In order to achieve the above object, according to the method of controlling a partial playback area designation of a video tape according to the present invention, in the loading state of the video tape by the tape loading / unloading unit, the tape is changed in accordance with the mode switching to the playback mode of the mode switching unit. In a video tape recorder in which video information from a video tape read from a signal recording / reading unit by driving of a driving mechanism is reproducibly processed by a reproduction signal processing means and outputted to a video output device through a signal output unit for reproduction. A first step of designating a predetermined recording area of the video tape by a key setting operation of the function setting section; counting a control signal of a recording surface corresponding to the recording area of the designated video tape to detect the tape time of the designated recording area; A second step of checking a travel time of the videotape; and the function setting unit A third step of recognizing the designated recording area based on the travel time of the checked video tape and reproducing the designated recording area repeatedly if the repeat playback function is set on the designated recording area of the video tape by a setting operation; A partial playback area designation control method of a video tape is provided.

According to the present invention constituted as described above, if a desired recording surface is designated as a playback area in the entire recording surface of the video tape on which the video tape recorder has recorded predetermined video information, it is recorded on the control track of the video tape. By counting the control signal, the absolute time is calculated based on the counted value of the counted control signal to recognize the specified playback area so that only the playback area can be played back repeatedly.

1 is a block diagram showing an apparatus for designating a partial playback region of a video tape according to the present invention;

2A and 2B illustrate an example in which a state for designating a partial playback area for a video tape is displayed on the screen according to an exemplary embodiment of the present invention;

3 is a schematic diagram showing a state where a plurality of partial playback areas are designated on a video tape according to a preferred embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

2: mode switching unit, 4: recording signal modulation processing unit,

6: recording signal amplifier, 8: signal recording / reading unit,

10: video tape, 12: tape driving mechanism,

14: tapering / unloading section, 16: playback signal amplifier section,

18: playback signal demodulation processing section, 20: signal output section,

22: control signal reading unit, 24: waveform processing unit,

26: control pulse coefficient section, 28: function setting section,

30: data storage, 32: timer,

34: control unit, 36: OSD signal processing unit.

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

1 is a block diagram showing an apparatus for designating a partial playback region of a video tape according to the present invention, in which the reference numeral 2 in the apparatus of the present invention is switched and switched according to the mode execution in the recording mode (not shown). A mode for passing a video intermediate frequency signal according to a predetermined broadcast program tuned through to recordable and passing a video signal reproduced and reproduced from the video tape 10 according to a mode switching of the playback mode so as to reproduce the screen. The switching part is shown.

Further, reference numeral 4 denotes a recording signal modulation processing unit for performing signal modulation on the video signal of the television broadcast through the mode switching unit 2 into a recordable signal band according to execution of the recording mode, and 6 denotes the signal modulated image. A recording signal amplifying unit which amplifies a signal to a signal level that enables a signal to be recorded on the recording surface of the video tape 10.

Reference numeral 8 comprises a plurality of magnetic heads provided in the head drum to record the video signal to be recorded on the recording surface of the video tape 10 and to read the video information recorded on the video tape 10. The signal recording / reading section is taken, and 12 indicates the rotation of the head drum and the video tape provided with the signal recording / reading section 8 in accordance with the reservation recording mode or the playback mode under the servo drive control from the control section 34 described later. 10 shows a tape driving mechanism for driving to drive on the recording surface, and 14 shows a tape loading / unloading for loading / unloading the video tape 10 under the loading / unloading control from the control section 34 to be described later. The unloading part is shown.

Reference numeral 16 denotes a reproduction signal amplifier for RF amplifying the image information from the video tape 10 read through the signal recording / reading unit 8, and 18 denotes a reproduction signal for the RF-amplified image information signal. A reproduction signal demodulation processing section for performing signal demodulation processing up to a signal band is shown.

Further, reference numeral 20 denotes an image information signal reproduced from the video tape 10 through the mode switching unit 2 or a video signal of a television broadcast tuned from a tuner or an OSD signal processor 36 to be described later in accordance with the execution of the reproduction mode. Denotes a signal output section for outputting an OSD display signal from the video output device side such as a television.

Reference numeral 22 denotes a control signal reading unit for reading the control signal recorded on the control track of the video tape 10, and 24 denotes a waveform processing unit for waveform shaping the control signal from the read video tape 10. FIG. 26 represents a control pulse coefficient unit for counting pulses of the waveform-controlled control signal.

Further, reference numeral 28 is a function setting unit which is composed of a matrix button unit provided in a remote control unit for remote control or a predetermined control panel of the main body to perform key setting for repetitive reproduction of the recording area of the video tape 10. A playback key 28A for performing key operation for reproducing the tape 10, a stop key 28B for performing key operation for stopping the reproducing operation of the video tape 10, and a recording surface of the video tape 10; Rewind key 28C for key operation for rewinding, fast forward key 28D for key operation for fast forwarding the recording surface of video tape 10, and repetition for a predetermined recording area of video tape 10 And an eject key 28F for unloading and discharging the loaded and mounted video tape 10, for specifying a recording area for reproduction.

Here, the function setting section 28 simultaneously operates the playback key 28A and the area designation key 28E in the predetermined recording area designated for repeat playback on the video tape 10 so that the repeat playback function is set. do.

Further, reference numeral 30 is based on the count value of the control pulse counted from the control pulse counting unit 26 for the recording area of the video tape 10 designated for repeat playback by the function setting unit 28. A data storage section for setting and storing, and 32 indicates a tape time of a recording area designated as a reproducing object of the video tape 10 based on the count value of the control pulse counted through the control pulse counting section 26. Represents a timer.

Further, reference numeral 34 designates a recording area on the basis of the coefficient value for the control signal from the video tape 10 counted from the control pulse coefficient unit 26 by the key operation of the function setting unit 28. Indicates a control unit which performs control for reproducing the specified recording area repeatedly for a predetermined number of times when the function setting unit 28 sets the repeated reproduction of the predetermined recording area.

Here, the control section 34 is a rewind key 28C and a fast forward key of the function setting section 28 after a plurality of recording areas are designated as a repeat playback object for the recording region of the video tape 10. 28D) When the rewind / fast forward (Rew / FF) function or the rewind play / fast forward play (Rev / Que) function is executed, the rewind / fast forward function or the rewind play / fast forward play function may be adaptively recalled. On the basis of the count value of the control signal from the control pulse coefficient unit 26, the timer 32 variably displays the time so as to grasp the designated recording area.

In addition, the control unit 34 operates a key operation of the eject key 28F of the function setting unit 28 in a state in which a plurality of recording areas are designated as a repeat playback object for the recording area of the video tape 10. When the video tape 10 is discharged, the data storage unit 30 is reset to initialize the setting data for the designated recording area.

Reference numeral 36 denotes an OSD signal processing unit for generating OSD display information for displaying a state of designating a recording area of the video tape 10 to be repeatedly played back under the display control of the controller 34.

In this case, when the OSD signal processor 36 designates a predetermined recording area of the video tape 10 by the function setting unit 28, as shown in FIG. The start time item 38 for the start of the designated recording area, the end time item 40 for the end of the specified recording area, and the tape time item 42 of the entire specified recording area on the basis of Be sure to

In addition, when the OSD signal processing unit 36 re-designates the recording area already designated by the function setting unit 28, as shown in FIG. 2B, the area is already controlled by the control of the control unit 34, for example. Causes the warning item 44, such as the one specified, to be displayed.

Next, the operation of the present invention made as described above will be described in detail with reference to the accompanying drawings.

First, as the playback key 28A of the function setting unit 28 is operated to set the playback mode, the video information recorded on the recording surface of the video tape 10 is read and reproduced by the signal recording / reading unit 8. After the signal amplification operation of the signal amplification unit 16 and the signal demodulation processing of the reproduction signal demodulation processing unit 18, the signal output unit 20 outputs the signal through the mode switching unit 2 to reproduce it by an image output device such as a television. In this case, the control signal from the video tape 10 read out by the control signal reading unit 22 and waveform-shaped by the waveform processing unit 24 is counted by the control pulse coefficient unit 26.

At this time, when the area designation key 28E of the function setting unit 28 is repeatedly operated and the recording area of the video tape 10 is designated as a repeat playback object, the control unit 34 controls the control pulse coefficient. On the basis of the count value of the control signal from the unit 26, the data storage unit recognizes the designated recording area of the video tape 10 through the time clocked by the timer 32 and sets the setting data of the designated recording area. As shown in FIG. 3, a plurality of recording areas A, B, and C can be designated in the recording surface of the video tape 10 as shown in FIG.

In addition, the OSD signal processing section 36, under display control of the control section 34, ends and starts time items 38 for the designated plurality of recording areas A, B, and C as shown in FIG. 2A. OSD display information of the time item 40 and the tape time item 42 is generated to be displayed on the screen.

In that state, in the state where the predetermined recording area A is reproduced or stopped in the plurality of designated recording areas A, B, and C shown in Fig. 3, the playback key ( When the key 28A) and the area designation key 28E are simultaneously operated, the control section 34 recognizes the clock time of the timer 32 based on the count value of the control signal of the control pulse counting section 26 and performs the video. It is determined that the recording surface on which the tape 10 is located is the recording area A to be repeatedly reproduced, and the servo drive control of the tape driving mechanism 12 is performed to determine the predetermined recording area A of the video tape 10 in a predetermined number of times. Control to play repeatedly.

Then, in the case where the stop key 28B of the function setting section 28 is key operated in the middle of the above operation and the playback operation is stopped and the eject key 28F is key operated, the control section 34 is a tape. The loading / unloading unit 14 is controlled so that the video tape 10 is unloaded and discharged, and the data storage unit 30 is reset to set the stored recording areas A, B, and C. Allow data to be erased and initialized.

According to the present invention made as described above, by specifying the recording area for the predetermined video tape loaded and seated in the video tape recorder to be able to repeatedly play, the desired recording area of the video tape can be easily and repeatedly reproduced. This has the advantage of providing convenience to the user.

Claims (6)

In the loading state of the video tape 10 by the tape loading / unloading unit 14, the signal recording / reading is performed by driving the tape driving mechanism 12 in accordance with the mode switching of the mode switching unit 2 to the reproduction mode. Image information from the video tape 10 read out from the mounting section 8 is reproduced by the reproduction signal processing means 16 and 18 so as to be outputted to the image output apparatus through the signal output unit 20 for reproduction. In the video tape recorder, Control signal reading / counting means (22, 24, 26) for reading the control signal recorded on the video tape (10) and counting the number of pulses; Function setting means (28) for performing key input to designate a plurality of recording areas on the recording surface of the video tape (10) for repeated playback; Data storage means (30) having stored therein the setting data for setting the recording surface of the video tape (10) corresponding to the plurality of recording areas designated by the function setting means (28) based on the count value of the control signal; Time-measuring means 32 for counting the travel time of the video tape 10 on the basis of the count value of the control signal from the video tape 10 counted by the control signal reading / counting means 22, 24, 26, According to the designation of the recording area of the video tape 10 by the function setting means 28, the recording area is set according to the time indicated by time-of-time by monitoring the traveling time of the video tape 10 based on the count value of the control signal. Control means 34 for performing control for repetitive reproduction of the designated recording area in accordance with the setting of the repetitive reproduction function by the function setting means 28; And display signal processing means (36) for generating display information for displaying a specified state of the reproduction area by key input of the function setting means (28) by the control of the control means (34). An apparatus for specifying a partial playback area of a video tape. 2. The control means (28) according to claim 1, wherein the control means (28) is adaptively adapted to the rewind / fast forward (Rew / FF) function or the rewind play / fast forward play (Rev / Que) function by the function setting means (28). And the timer (32) variably times the time based on the count value of the control signal from the control signal reading / counting means (22, 24, 26). The control signal reading / counting means (22, 24, 26) of the control signal according to claim 1, wherein the control means (34) designates a reproduction area already designated by the function setting means (28). Partial playback area designation control of the video tape, characterized in that the count value and the clock time of the timer 32 are determined to warn the repeated designation state of the playback area through the display information by the display signal processing means 36. Device. The display signal processing means according to claim 1, wherein the display signal processing means (36) generates display information for screen display of the start time, the end time, and the playback time of the playback area designated by the function setting means (28). And a partial playback region designation control apparatus for a video tape. 2. The control means (34) according to claim 1, wherein the control means (34) is configured to unload the video tape (10) through the tape loading / unloading unit (14) in response to a key input for unloading by the function setting means (28). And resetting the data storage means (30) in which the setting data of the designated reproduction area is stored to initialize the data. In the loading state of the video tape 10 by the tape loading / unloading unit 14, the signal recording / reading is performed by driving the tape driving mechanism 12 in accordance with the mode switching of the mode switching unit 2 to the reproduction mode. Image information from the video tape 10 read out from the mounting section 8 is reproduced by the reproduction signal processing means 16 and 18 so as to be outputted to the image output apparatus through the signal output unit 20 for reproduction. In the video tape recorder, A first step of designating a predetermined recording area of the video tape 10 by a key setting operation of the function setting unit 28; A second step of counting a control signal of a recording surface corresponding to the recording area of the designated videotape 10 to detect the tape time of the designated recording area and checking the running time of the videotape 10; When the repeat playback function is set on the designated recording area of the video tape 10 by the key setting operation of the function setting unit 28, the designated recording area is recognized based on the travel time of the checked video tape 10. And a third step of repetitively reproducing only the designated recording area.