KR19980030762A - Short video recording control method - Google Patents

Abstract

SUMMARY OF THE INVENTION The present invention provides a method for controlling short-time recording of televideo, which makes it possible to easily reserve a recording time by a single key operation during instant recording of a television channel of a predetermined channel currently broadcasted in televideo.

Accordingly, the present invention sets the recording time T according to the first step of detecting the total tape amount M of the mounted video tape 14 and the short-time recording function at the time of immediate recording of the predetermined video information. In a second step, a third operation of comparing the set recording time T with the total tape amount M, and a recording speed SP of the video tape 14 according to the result of the comparison operation in the third step, And a fourth step of determining the LP and SLP to execute the recording function and a fifth step of stopping the execution of the recording function when the recording time T elapses.

Description

Short video recording control method

The present invention relates to a method for controlling shortened recording of televideo. More particularly, the present invention relates to a method for controlling shortened recording of televideo. The present invention relates to a method for controlling shortened recording of tele video.

Conventionally, a video tape recorder performs an operation of reproducing a video signal and an audio signal recorded magnetically on a video tape, and a television is a video / audio signal of a broadcast program transmitted wirelessly or by wire from a broadcasting station. It has a function of playing video / audio of video signal and audio signal which are played back or transmitted from an external video playback device such as a video tape recorder. In this regard, a television and a video tape recorder are generally connected to a transmission cable of a video / audio signal. The video / audio signal of the video tape or the video / audio signal for the program of the television broadcast is reproduced according to the setting state of the video mode or the television mode.

In other words, conventionally, a television and a video tape recorder are configured as independent components to exchange video / audio signals by means of a connection cable. At present, a video / audio signal reproducing function and a video tape recorder / Televideo (TVCR), which combines playback and recording functions of audio signals, has been developed and commercialized.

According to such a televideo, a tuning function for tuning a broadcast program transmitted from a plurality of broadcasting stations, a channel memory function searched by the tuning function, a video / audio signal or a videotape according to a broadcast program of a tuned channel A reproducing function for reproducing video / audio reproduction of recorded information and an immediate reproducing function for recording a television broadcast program of a predetermined channel currently being reproduced on a recording surface of a video tape are integrated.

In addition, if the broadcast time to be recorded on the recording surface of the video tape and the broadcast time for the aging television program are set in advance and reserved, the broadcast program of the reserved channel can be recorded according to the passage of the reserved broadcast time. The reservation recording function for making it possible is provided as an important function.

However, in the reservation recording function provided in such a tele-video, the start time and end time of the reservation recording for a predetermined broadcast recording program are set in advance, so that the recording operation is automatically performed when the set end time of the reservation recording has elapsed. In the immediate recording function, however, if the recording operation needs to be terminated as the program of the currently recorded broadcasting channel ends, the user can manually stop the recording state by manual operation. It is a hassle to check the exit status of the program.

Accordingly, the present invention has been made in view of the above circumstances, and the shortening of the televideo which makes it possible to easily reserve the recording time by a single key operation during the instant recording of the television broadcast of the predetermined channel currently broadcasted in the televideo. The purpose is to provide a recording control method.

In order to achieve the above object, according to the short video recording control method according to the present invention, there is provided a first step of detecting the total tape amount of a mounted video tape, and a short video recording function upon immediate recording of predetermined video information. And a recording function for determining the recording speed of the video tape according to the result of the comparison operation in the third step and the third step of comparing the set recording time with the total tape amount. And a fifth step of executing the recording function and a fifth step of stopping the execution of the recording function when the recording time has elapsed.

According to the present invention configured as described above, it is possible to shorten the recording time in accordance with the end time of the broadcast program at the time of immediate recording of the television broadcast program of the predetermined channel currently broadcasted in the tele-video, the selected recording time is the video When the total amount of tape on the tape is exceeded, the recording speed is automatically adjusted to 2x or 3x speed so that it can be recorded.

1 is a block diagram showing an apparatus for controlling shortened recording of a tele video for explaining a method according to the present invention;

2A and 2B are diagrams illustrating an example in which a setting state of a short recording function is displayed on a screen according to a preferred embodiment of the present invention;

3 is a flowchart illustrating the operation according to the preferred embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

2: tuner, 4: video IF section,

6: mode switch unit, 8: recording signal processing unit,

10: signal amplification part, 12: signal recording part,

14: video tape, 16: tape amount detection unit,

18: drive servo circuit part, 20: drive motor part,

22: function setting section, 24: data memory,

26: data storage, 28: control,

30: video amplifier, 32: video signal processing,

34: OSD signal processor, 36: signal decoder.

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 controlling short-time recording of a tele video for explaining a method according to the present invention, in which channel channel selection data (VT) for channel selection is performed from the control unit 28, which will be described later with reference numerals. And a tuner which tunes the corresponding channel and outputs it as an intermediate frequency signal mixed with the local oscillation signal generated by the channel tuning data (VT), and 4 represents an intermediate frequency of the tuned television broadcast signal. An image IF portion to be amplified is shown.

Further, reference numeral 6 denotes that the television broadcast signal tuned from the tuner 2 can be recorded on the recording surface of the video tape 14 or read out from the video tape 14 by mode switching control of the controller 28 described later. And a mode switch unit for mode switching operation so that the television broadcast signal tuned from the tuner 2 can reproduce the image.

Further, reference numeral 8 denotes a recording signal processing unit for signal-modulating the video signal of a predetermined channel tuned from the tuner 2 in accordance with the execution of the recording mode, and 10 denotes a recording capability of the signal modulated video signal. A signal amplifying part for amplifying the signal up to the amplification level, and 12 is a signal recording part for recording the signal amplified video signal on the video track of the video tape 14 by using a plurality of magnetic heads provided in a head drum (not shown). Indicates.

Reference numeral 16 denotes a tape amount detecting unit for detecting the total tape time of the attached video tape 14, and the tape amount detecting unit 16 may apply any tape amount detecting means already disclosed and employed. Do.

Further, reference numeral 18 denotes a drive servo circuit section for servo controlling the recording operation of the signal recording unit 12 and the driving operation according to the recording mode of the video tape 14 under the driving control of the control unit 28 described later. Drive for performing constant speed rotation of the head drum provided with the signal recording section 12 and motor rotation for constant speed running with respect to the recording surface of the video tape 14 by servo control of the drive servo circuit section 18. Motor part is shown.

Reference numeral 22 denotes a matrix button unit provided in a remote control unit for remote control or a predetermined control panel of the main body, and is a function setting unit for setting the recording time according to the short-term recording function. It includes a setting key 22A and a recording key 22B for selecting the recording time as well as starting the immediate recording operation.

Reference numeral 24 denotes a data memory in which control program data used for setting of the recording time according to the short recording function during instant recording and for comparative operation control for determining the recording speed between the set recording time and the tape amount is stored. Denotes a data storage unit for storing the setting data of the recording speed determined according to the result of the comparison operation between the recording time set according to the short recording function and the tape amount.

Further, reference numeral 28 causes the recording time to be set in accordance with the setting of the short recording function by the function setting unit 22 in the state of detecting the tape amount from the tape amount detecting unit 16 to the video tape 14. The recording time is determined by comparing the set recording time with the detected tape amount and determining the recording speed such as the constant speed (SP), double speed (LP) or triple speed (SLP), and recording is limited to the recording time based on the recording speed. Represents a control unit that controls the operation to be performed.

In this case, the controller 28 recognizes that the recording time exceeds the tape amount even when the recording speed is determined to be three times as a result of the comparison operation of the tape amount in comparison with the set recording time. 34) to control the display so that a warning letter is displayed to warn the user of the lack of tape.

Reference numeral 30 denotes an image amplifier which amplifies the video signal of a television broadcast through the mode switch unit 6, and 32 denotes a video signal by processing the signal amplified video signal and outputs the composite video signal. In addition, an image signal processing unit which inserts and outputs an OSD display signal from an OSD signal processing unit 34 to be described later into a composite video signal.

Further, reference numeral 34 is applied with control data DT and address ADD from the control unit 28 to generate OSD display data indicating the setting state of the recording time according to the short recording function. An OSD signal processing unit is configured to generate OSD display data according to a warning character warning a lack of tape amount in preparation. 36 denotes an OSD display signal in analog state by decoding OSD display data generated through the display signal processing operation. Indicates the signal decoder to output.

Here, the OSD signal processing unit 34 is, for example, 30 minutes-1 hour-1 hour 30 minutes-2 hours-2 hours 30 minutes-3 hours-4 hours when the short recording function is set. -OSD time of the recording time to be set such as 5 hours-6 hours is displayed on the screen, and if the amount of tape is insufficient in preparation for the recording time is set as shown in Fig. To be displayed.

Next, the operation of the present invention made as described above will be described in detail with reference to the flowchart of FIG. 3.

First, in the case where the video tape 14 having a predetermined tape amount is mounted in the power-on state of the tele-video in step 40, the process proceeds to step 41 and the control unit 28 performs the mounted amount through the tape amount detecting unit 16. The tape amount M of the video tape 14 is detected.

In that state, the control section 28 proceeds to step 42, and the recording key 22B is operated after the shortcut recording setting key 22A of the function setting section 22 is operated to set the shortcut recording function. Judge whether

As a result of the determination in step 42, when it is determined that the recording setting key 22A of the function setting unit 22 is not operated by the key and the recording key 22B is directly operated by the key, the control proceeds to step 43 where the drive servo circuit unit By controlling (18), the video tape 14 is driven at constant speed while maintaining the tracking state, and the television broadcast signal of a predetermined channel that is tuned from the tuner 2 by the signal recording unit 12 and processed by a recording signal. Is recorded so that the recording operation is performed until the function is stopped by a key operation of a stop key (not shown) provided separately in the function setting unit 22.

However, when the determination result of the step 42 determines that the short recording function is set while the recording key 22B is operated after the short recording setting key 22A of the function setting unit 22 is operated, the control is performed. By proceeding to step 44, by controlling the OSD signal processing unit 34, for example, 30 minutes-1 hour-1 hour 30 minutes-2 hours-2 hours 30 minutes-3 hours-4 hours-5 hours as shown in FIG. During a plurality of recording times such as 6 hours, the screen is displayed so that a recording time T of, for example, 4 hours can be set.

Subsequently, the process proceeds to step 45 where the control unit 28 prepares the entire tape of the video tape 14 in preparation for the set recording time T of, for example, four hours based on the control program data of the data memory 24. When it is determined that the total tape amount M exceeds the recording time as a result of the comparison operation, the control proceeds to step 46 to set the recording speed to constant speed SP. The driving servo circuit unit 18 performs the servo control operation corresponding to the recording speed of the constant speed SP to perform the recording operation during the set recording time T of the 4 o'clock price.

However, when it is determined in step 45 that the recording time T exceeds the total tape amount M, control proceeds to step 47 where the recording time T is determined by the video tape 14. It is determined whether or not it is smaller than the tape amount corresponding to twice the total tape amount M. FIG.

As a result of the determination in step 47, if it is determined that the recording time T is smaller than the tape amount corresponding to twice the total tape amount M, the control proceeds to step 48 and the recording speed is doubled to LP. By adjusting, the driving servo circuit 18 is servo-controlled according to the double speed LP so that the recording operation on the video tape 14 is performed during the set four-hour recording time.

However, if it is determined that the recording time T exceeds the tape amount corresponding to twice the total tape amount M, the control proceeds to step 49 and the recording time T is determined. It is judged whether or not it is smaller than the tape amount corresponding to three times the total tape amount M. FIG.

If it is determined in step 49 that the recording time T is smaller than the tape amount corresponding to three times the total tape amount M, then control proceeds to step 50 to set the recording speed to three times the speed SLP. By controlling the drive servo circuit unit 18 to vary the recording operation of the signal recording unit 12 and the driving state of the video tape 14 to perform the recording operation according to the recording speed of the set triple speed (SLP). However, it is possible to perform during the recording time of the set 4 hours.

On the other hand, if it is determined that the recording time T of the four hours exceeds the tape amount corresponding to three times the total tape amount M, the control proceeds to step 51 and the OSD signal processor By controlling 34, OSD characters such as, for example, insufficient tape amount can be displayed on the screen as shown in Fig. 2B.

According to the present invention made as described above, it is possible to set the recording time by the short-time recording function at the time of immediate recording of the broadcast program of the predetermined channel currently broadcasted in the tele-video to compare the recording time and the total tape amount of the video tape. By calculating the appropriate recording speed for the videotape, it is possible to perform the recording operation during the set recording time. Therefore, it is not necessary to manually determine the recording time of the broadcast program in preparation for the tape amount of the videotape. It has the advantage that it can provide convenience.

Claims (3)

A first step of detecting the total tape amount M of the mounted video tape 14, A second step of setting a recording time (T) according to a short recording function during instant recording of predetermined video information; A third step of comparing and calculating the set recording time T and the total tape amount M; A fourth step of executing a recording function by determining a recording speed (SP, LP, SLP) of the video tape 14 according to the comparison operation result in the third step; And a fifth step of stopping the execution of the recording function when the recording time (T) has elapsed. 2. The recording time T according to the short recording function in the second step includes: a short recording setting key 22A for setting execution of the short recording function of the function setting section 22; A short-time recording control method for tele video, characterized in that shortening is selected by a recording key (22B) for selecting a recording time upon start. The tape amount M to be recorded if it is determined in the fourth step that the set recording time T exceeds the tape amount M even when the recording speed SP, LP, SLP is adjusted. Short video recording control method characterized in that it is configured to display a warning message to warn that the lack of).