KR19990031134A - Schedule recording method when tape is low - Google Patents

Abstract

The present invention relates to a reserved recording method when a remaining amount of vial tape is insufficient. In the past, a user has inferred a tape remaining amount when setting a reserved program and vaguely selected a suitable recording speed (SP, LP, EP) It is often difficult to record the desired broadcast program.

In order to solve such a problem, the present invention includes a step of determining whether a current processing mode is a reserved recording mode (step 10), and if it is determined in the step of the reserved recording mode, (Step 12) of judging whether or not a tape is loaded in the deck part of the VISIAL (step 12); and if it is judged that the tape is loaded in the deck part of the VISIAL (Step 13) of calculating a time T capable of recording the residual amount data of the current tape detected by the detecting unit and recording the remaining amount of tape on the deck unit of the Vishial, A step (step 14) of sending a control signal to the SD unit and outputting a subtitle containing no tape to the TV receiver (step 14) (Step 15). If it is determined that the recordable time T is less than the total scheduled recording time (step 15) (Step 17) of checking whether or not the current time is the scheduled recording start time when the recording time T that can be recorded with the tape remaining amount is equal to or longer than the total scheduled recording time (step 17); and The microcomputer 4 sequentially executes the step of performing recording until the end of the scheduled recording time (step 18) when the current time is determined as the scheduled recording start time.

Description

Schedule recording method when tape is low

The present invention relates to a reserved recording method when a remaining amount of vial tape is insufficient, and in particular, it is possible to avoid a phenomenon in which reserved recording ends in the middle due to a mistake of the user remaining in the tape when the reserved recording program is set.

The VISIR system has a program schedule recording function that automatically records when the user wants to record the program time zone through the OSD menu screen, and it is possible to set a plurality of such schedule recordings. VISS (VISS: VHS INDEX SEARCH SYSTEM) is a high-performance VHS INDEX SEARCH SYSTEM. It records a certain signal when video tape is recorded and quickly finds the first part recorded by user's choice after recording is completed. Have.

However, even in the case of a Vishial having such a function, there is a problem that it is necessary to rewind to see the recorded program after the completion of the scheduled recording to find the beginning of the scheduled recording. This is because after the completion of the scheduled recording, the power of the vial is turned off, the user can not return to the initial recording portion until the user selects the rewinding mode again. This automatic rewind mode was only possible when the tape was running in playback mode.

On the other hand, a method of performing automatic rewinding to the portion where the scheduled recording is started when the recording is completed in the reserved recording mode has been already known.

That is, in accordance with a signal from the timer microcomputer, the microcomputer simultaneously records the bismarck along with the broadcast program under the control of the system controller / servo microcomputer according to a signal indicating the start of the scheduled recording transmitted from the timer microcomputer It is possible to return to the recording start portion by detecting the bismark while the SISCON / servo microcomputer advances the deck portion to the rewinding mode.

However, there is a problem in the execution of such a scheduled recording that the remaining amount of tape is less than about the time for recording.

In the past, when the reservation program was set, the user inferred the tape remaining amount and vaguely selected the appropriate recording speed (SP, LP, EP).

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a reserved recording method in which a Vishay user can directly record a desired program even if he / .

According to another aspect of the present invention, there is provided a method of recording a Vishi scheduled recording, the method comprising: determining whether a current processing mode is a scheduled recording mode; Determining whether or not the tape is loaded in the deck portion of the Vissel, and determining whether the tape is loaded in the deck portion of the Vissel, Calculating a time T capable of recording the remaining amount of tape on the basis of the residual amount data of the current tape detected by the amount of tape remaining on the deck part of the Vsial, Outputting a subtitle having a content of no tape to be sent to a television receiver; If it is determined that the recordable time T is less than the total scheduled recording time, and if it is determined that the tape recording time T is shorter than the scheduled recording time, the control circuit sends a control signal to the servo circuit unit to rewind the tape Checking if the current time is a scheduled recording start time when the recording time T is equal to or longer than the total scheduled recording time; and if it is determined that the current time is the scheduled recording start time And the microcomputer sequentially executes the step of recording the video data until the end of the reserved recording time.

1 is a block diagram of a vial control system for implementing the present invention;

2 is a flow chart for explaining the present invention.

DESCRIPTION OF REFERENCE NUMERALS

1: antenna 2: tuner unit

3: Upper loop circuit 4: Microcomputer

5: OSD processing unit 6: Memory

7: key input unit 8: deck unit

9: Servo circuit part 10:

11: RF converter 12: Video signal processor

13: TV receiver

Hereinafter, a method for confirming the remaining recording time of Vsial according to the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram of a control system for vias for carrying out the present invention. FIG.

A tuner unit 2 for receiving a regular broadcast signal from a Vishali system antenna 1 and performing channel channel selection; a phase locked loop (PLL) for receiving a channel selection signal provided from the tuner unit 2; A microprocessor 4 for controlling the Vishal system, an OSD processing unit 5 for generating an OSD screen, a Vishal system memory 6, various function keys A deck section 8 for performing a recording / reproducing deck operation; a servo circuit section 9 for controlling a driving motor on the deck section 8 side; A remaining amount detecting unit 10 for detecting the remaining amount, and a configuration including the RF converter 11, the video signal processing unit 12, the television receiver 13, and the like.

Therefore, when the user operates various keys of the key input unit 7 to watch television broadcasts

The microcomputer 4 tunes the signal received via the antenna 1 through the tuner 2 so that the microcomputer 4 controls the phase lock loop circuit 3 so that the tuning of the tuner 2 The voltage was changed.

In addition, when a broadcast program desired to be viewed on the video recording tape is scheduled to be recorded, the user may set a channel to be recorded, a start time and end time of the scheduled recording, and a date on the OSD menu screen. The start time of the reserved recording is checked every time, and when the scheduled recording start time comes, the controller controls the deck unit 8 and the servo circuit unit 9 to advance the recording mode.

Hereinafter, the present invention will be described with reference to the flow chart of FIG.

The VMS system microcomputer 4 determines whether the current processing mode is the reserved recording mode (step 10). If it is determined that the current recording mode is the reserved recording mode, Minute, for example, about 1 to 5 minutes before (step 11).

As a result of the determination, if the current timing is determined to be a predetermined minute before the scheduled recording start time, the microcomputer 4 determines whether or not the tape is currently loaded on the deck unit 8 of the Vishial (step 12 At this time, if it is determined that the tape is loaded in the deck part 8 of the vial, the remaining time data of the current tape detected by the remaining amount detecting part 10 is inputted and the time T capable of recording the remaining amount is calculated Step 13).

For reference, a method of calculating the residual amount of tape performed by the microcomputer 4 will be described below.

First, the type of tape must be determined. The type of tape can be determined by the area when the tape is viewed from above.

The information given to us is the number of pulses generated on the capstan motor shaft that contacts the tape and returns to the same linear velocity P _cfg ), The length (L) in which the tape moves when one pulse is generated, and the length of the hub The number of pulses that occur once ( P _s ) ( P _t When the microcomputer 4 enters such information, the microcomputer 4 can determine the type of the tape.

That is, the total area of the tape A _tot And the tape area of the supply-reel A _s Take-up - the tape area on the reel A _t In other words,

A _tot = A _s + A _t =? R _s ² +? _{R t} ² (However, A _s Wow A _t Is the area of the hub, respectively), and the length L of movement of the tape is

Where the length (L) is the number of Capstan FG pulses ( P _cfg ), a _s Wow a _t Is the number of reel pulses ( P _s ) ( P _t ).

ℓ is the circumferential constant (0.3523π / 369 [mm]) of the capstan shaft corresponding to one Capstan FG pulse. therefore,

A _tot =? R _s ² +? _{R t} ²

Comparing Capstan FG pulses with reel pulses, Capstan FG pulses are 360 per capstan, and reel pulses are four per reel.

Therefore, it can be seen that the cycle of the reel pulse is relatively large. Therefore, the area of the supply reel and the take-up reel are calculated by using the number of Capstan FG pulses coming in one cycle of the reel pulse.

Since the periods of the supply-reel and take-up-reel pulses are not the same, the respective areas are obtained with slight parallax.

Therefore, when calculating the area using this,

(However, here P _cfgs Is the number of Capstan FG pulses per pulse of the supply-reel, P _cfgt Is the number of Capstan FG pulses per one take-up reel pulse)

As described above, according to the VHS standard, the type of tape is determined in comparison with the area calculated by the tape thickness, the hub of the length, and the radius, and the remaining amount of tape can be calculated using the determined type.

That is, the thickness of the tape is d, and the area of the hub is A _hub , And the length of the tape wound on the supply-reel is L _s , The linear speed of the tape in the current speed mode is V _play And the remaining amount of tape T _remain , The following equation can be obtained.

ego, Because of,

Therefore, T _remain )silver

.

On the other hand, when it is determined that the tape is not loaded in the deck unit 8, the microcomputer 4 sends a control signal to the OSD processing unit 5 to output a subtitle containing no tapes through the TV receiver (Step 14).

The microcomputer 4 continues to determine whether the time T that can be recorded with the tape remaining amount is less than the total scheduled recording time (step 15). As a result of the determination, the microcomputer 4 determines that the recording time T, The tape loaded in the deck unit 8 is returned to the initial position (step 16).

On the other hand, if it is determined that the recording time T of the tape remaining amount is equal to or longer than the total scheduled recording time, the microcomputer 4 immediately checks whether the current time is the scheduled recording start time (step 17) If it is determined that the recording start time is reached, recording is continued until the reserved recording end time (step 18).

As described above, according to the present invention, it is possible to prevent the recording failure of the entire program due to the shortage of the recorded tapes when the reserved recording is executed, thereby relieving the psychological burden of the possibility of the recording failure that the Vicious user feels.

Claims (1)

(Step 10) of judging whether or not the current processing mode is the reserved recording mode in the reserved recording method of the Vishal, and judging whether the reserved recording start time is a predetermined number of minutes (Step 12) of judging whether or not a tape is loaded in the deck part of the VISIAL (step 12); and if it is judged that the tape is loaded in the deck part of the VISIAL (Step 13) of calculating a time T capable of recording the residual amount data of the current tape detected by the detecting unit and recording the remaining amount of tape on the deck unit of the Vishial, A step (step 14) of sending a control signal to the SD unit and outputting a subtitle containing no tape to the TV receiver (step 14) (Step 15). If it is determined in step 15 that the recordable time T is less than the total scheduled recording time, (Step 17) of checking whether the current time is the scheduled recording start time when the recording time T that can be recorded with the tape remaining amount is equal to or longer than the total scheduled recording time (step 17); and The microcomputer 4 sequentially executes a step (step 18) of continuously executing recording until the end time of the reserved recording if the current time is determined as the scheduled recording start time in the timer recording method .