JPH0469844A - Program reserving method - Google Patents

Abstract

PURPOSE:To record a reserved program at a prescribed tape speed before interruption at the time of restart even in the case of interruption of reserved program recording by storing the tape speed at the time of interruption and executing the restarted VPS timer reserved program recording at the stored tape speed. CONSTITUTION:When an interruption code in a VPS code is detected in the middle of VPS reserved program recording, it is stored in a data memory 7. When detecting the interruption code, a data discriminating circuit 13 controls a timer control circuit 10 to interrupt the timer recording and stores the tape speed at the time of interruption in a reservation storage circuit 6. When the data discriminating circuit 13 detects the VPS code transmitted again after interruption and discriminates the restart, the tape speed of this restarted reserved program recording is changed to the stored tape speed. Thus, reserved program recording is executed at the desired tape speed regardless of interruption or a power failure.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Utilization The present invention relates to a program reservation method for a video tape recorder (VTR), and in particular, to a timer reservation recording by VIS.
and a program reservation method for a video tape recorder capable of recording at different tape speeds.

(b) Conventional technology Currently in West Germany, ~' P S (~・1deo P
A program reservation system called a programming system has been widely adopted for VTRs.

This VTR uses a control signal (~・'PS code) that is sent out superimposed on the TV broadcast radio waves.
This system allows for accurate recording reservations, and the service began at the end of August 1985 at a TV broadcasting station in West Germany.

When recording So Tong while he is away, the user stores the recording start time and end time in advance in the VTR, and the start and end of recording is automatically controlled according to the built-in clock.

Therefore, when a change occurs in a broadcast program, the beginning or end of the program may not be recorded, or a completely different program may be recorded. In foreign countries, the broadcast time of broadcast programs is changed relatively frequently, unlike in Japan. Built-in for 7 hours.

Recording while the user is away using only the time St has many drawbacks and is not practical. Therefore, if ~;ps is used, even if there is a change in the broadcast time of a program scheduled in advance, the program itself will record using the vPS label (identification information for each program) that is added and sent to each program. 7'1. This is the reason.

By the way, with VTRs currently on the market, do you have to set the timer as a monthly measure in case of a power outage?
It's going.

That is, for example, right now, 70 grams 1 is broadcasting 8 channels of programs from 19:00 to 21. , : During OO, it is assumed that the tape speed is set to LP mode and scheduled recording is performed as follows: 1).

Then, as shown in Figure 3, the scheduled recording start time (19;0
0), the tape speed (SP) changes to the reserved tape speed (IP) at 'PAf1. Then, recording was interrupted due to a power outage, etc., and when recording was restarted, the tape speed was not the same as the team speed at the time of reservation, and there was an EE! It is composed of the recorded tape speed (SP) (9 strokes ago) and the recorded tape speed (SP).

In the case of Figure 3 above, when the power is restored and recording is resumed, the tape speed should be set to the reduced tape speed (+, , , , P).

However, in that case, legal issues arise.

That is, for example, let's assume that a program of 8,000 channels is set to be scheduled for recording with the team speed set to SP mode from 19:00 to 21:00.

Then, as shown in Figure 4, the scheduled recording start time (19:0
0) When the rA point is reached, the team speed (E P )
The tape speed changes from to the reserved tape speed (S P ), but
After this, the user intentionally changes the tape speed from SP to I.
If you change it to P (this means changing the tape speed in the EE state) [point B], if scheduled recording is interrupted due to a power outage, etc., then the tape speed will be the same when scheduled recording is resumed. is not the tape speed (t, r-' +) that Niese had changed earlier, but the reserved tape speed (
SP > Nana・) and put it away.

That is, when the power is restored and the tape speed at which recording was heard is set to the reserved tape speed, the user intentionally changes the tape speed from SP to LP. It returns to the tape speed (SP) at the time of the initial reservation and then stops. In order to avoid such a situation, we will use the same example as in Fig. 4 to explain how current VTRs handle the
As shown in the figure, when the scheduled recording start time (1910) reaches CA point 1, the tape speed (EP) changes to the scheduled tape speed (SP), but after this, the user intentionally changes the tape speed from SP to LP. If you change it (this is EE
(This means that the tape speed was changed according to the condition) [Point B] After this, if scheduled recording is interrupted due to a power outage, etc., and when scheduled recording is resumed, the tape speed of ft will not be the scheduled tape speed, The tape speed is set to the tape speed (■, P) changed by the user first, and then recording is made at the tape speed intended by the user.

(c) Problems to be Solved and Attempted by the Invention However, with such power, when timer recording is performed using a VPS, the following disadvantages arise.

Now, set program 1 and 5 to 8 channels from 1400 to
Performs PS timer scheduled recording until 15:00 at tape speed SP, and performs PS timer scheduled recording at tape speed 1iLP from 1500 to l:1°30 for 8 channels as button 2. shall be. If there is only one timer reservation, even if an interruption occurs due to the \'PS interruption code after the timer reservation has entered the 11th execution, it can be dealt with using the method explained in I-Memory 5, but as shown in the current example, If there are multiple reservations, reservation recording cannot be performed at the desired tape speed for the reasons described below.

That is, at 14:00, program 1 is executed at tape speed SP, but during this scheduled recording, vP
Due to the S interrupt code, while the scheduled recording of program 1 is in progress, the scheduled recording of program 2 is started from 15:00 at tape speed LP, and 15:
Let's say it ends at 30. Then, after a while, V
If the scheduled recording of the program is resumed by retransmitting the PS code, the tape speed of the resumed scheduled recording of 70g 1 is set as program 1, and
The tape speeds l and P used last are used instead of P, resulting in the disadvantage that programmed recording of Programno-1 is performed at two different tape speeds.

The present invention therefore seeks to overcome these drawbacks.

(d) Means for Solving the Problems The present invention is a video tape recorder that is capable of timer recording using a VPS and scheduled recording at different tape speeds. ~'
PS timer child record PS interruption code during actual recording execution,
VPS timer scheduled recording is interrupted due to power outage, etc.
When the first VPS timer scheduled recording is restarted after the second VPS timer scheduled recording is executed after this interruption, the tape speed at the time when the interruption occurred is stored in the storage means. This is the program for which the first VPS timer scheduled recording is executed at the tape speed stored in the storage means.

(e) Effect 1-According to the purchase, the vPS interruption code is caused by l)? Even if recording is interrupted, scheduled recording can be performed at a predetermined tape speed at the time of interruption.

(F) Example Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.

FIG. 2 shows a program reservation system employing VPS.

The reservation storage circuit 6 stores operation information of the reservation button group 4 that is operated in connection with reservation setting, and displays it on the display means 9. This reservation code consists of information including the recording start time (recording start code), reservation channel, VI) S reservation availability, and recording start time (or recording time). configured). This reservation storage circuit 6 also stores the output of the ~'ps switch 5, and the vPST by the VPS system.
- Distinguish and memorize the reservation mode and the regular reservation mode based on the regular time. Therefore, in ps reservation mode, the broadcast code of the reserved channel is detected and the corresponding program is recorded without being restricted by the recording start time and recording end time of the reservation code, and in normal reservation mode, the broadcast code of the reserved channel is detected and the corresponding program is recorded at the real time Recording is performed from the set recording start time to the recording end time by comparing the reservation code and the recording start time.

The VPS code includes a code related to the program start time (program start code), a code indicating that the program has been interrupted (
program interruption code) and control-related codes.

The reservation execution mode will be explained below. In the vpS reservation mode, the real time information of the clock circuit 11 is compared with the reservation code (recording start time) of the reservation storage circuit 6,
When the power supply circuit 14 matches, the power supply circuit 14 is energized.
4 activates VTR tuner 2 and antenna 1.
A reserved channel is selected based on the output of the channel selection circuit 12 from the broadcast signal obtained from the channel selection circuit 12. ) The video signal of about channel is input to the VPS decoder 3 and the VPS code is decoded. If vPS code exists, VPS
The code is stored in data memory 7. Reservation code (
(start time) and the stored vPS code (program start time) are compared in the reservation match determination circuit 8, and when a match output occurs, the timer control circuit 10 activates the power supply circuit 14 to start recording. Recording is started by activating the means 16. In principle, this recording is executed during a period in which a transmission code (program start time) that matches the reservation code (recording start time) is generated, and a \7ps reservation mode is executed to correctly record the desired program.

On the other hand, if the reserved channel is a channel on which a VPS code is not multiplexed, no vPS code is stored in the data memory. Therefore, the reservation matching circuit 8 detects that the transmission code is not stored in the data memory 7, and compares the reservation code (recording start time) with the actual time of the clock circuit 11, so that the actual time is -・When the timer control circuit 10 is activated, the power supply circuit 14 is energized.

As a result, recording of the reserved channel is started at the recording start time. After the start of recording, the reservation coincidence determination circuit 8 compares the recording end time in the approximation code with the actual time. According to the comparison, when a coincidence output occurs in ), the timer control circuit 11
] becomes inactive and deenergizes the power supply circuit 14. , Therefore, 1. In the normal reservation mode described above, recording is performed at -◇ according to the time of the f-code and the reservation channel.Even if the transmission code is multiplexed to the f-channel,
When making a reservation, if the VPS switch 5 is set to OFF and the normal reservation mode is set, the above-mentioned normal reservation mode will not be activated regardless of the output of the data memory 7.
-I do.

Further, 15 is a tape speed switch, and by turning this switch 15 on and off, the tape speed during scheduled recording can be switched between SP and LP.

Incidentally, a portion 20 surrounded by a broken line r in FIG. 2 is constituted by a micro-collector.

During VPS scheduled recording, in the vPS decoder,
When an interrupt code in the PS code is detected, the interrupt code is stored in the data memory 7. When the data discrimination circuit 1; 3 detects the interruption code in the data memory 7 (when it is determined that the reservation is interrupted by the VPS code) (
(s, )) in FIG. 1, the timer control circuit 10 is controlled to interrupt the timer recording, and the reservation memory circuit 6 is programmed with the information at the time when the interruption by the interruption code 1-'' is received. Memorize the tape speed (see Figure 1).
Sl)).

Further, if the timer recording is interrupted due to the VPS code, the tape speed at the time of the interruption is not stored.

When it is determined that the scheduled recording has been restarted after the scheduled recording has been interrupted ((Sl) in FIG. 1), it is determined whether or not the restart of the scheduled recording is to resume the interruption of the scheduled recording using the VPS code. ((si)l! in Figure 1).At this time,
Whether or not to resume scheduled recording using the vPS code is determined by the data discrimination circuit 13 that uses the vPS code that is sent again after the interruption.
The line is detected by the detection. V in step 4
If it is determined that the restart is based on the PS code, the tape speed of the restarted scheduled recording is determined in step 5C5S.
), the tape speed is changed to the one stored in the reservation storage circuit. If it is determined in step 4 that the restart is not based on the ~'PS code, the tape speed of the restarted scheduled recording is changed to the tape speed stored at the time of EE ((Ss) in FIG. 1).

As described above, according to the present invention, even if a plurality of VPS timer recordings are scheduled and an interruption or power outage occurs, each scheduled recording can be executed at the desired tape speed, Further, even if the user intentionally changes the tape speed, recording can be performed at the tape speed based on the user's intention. Of course, normal~
In a timer recording system such as ``PS'', it is possible to similarly execute the process at a desired tape speed.

(G) Effects of the Invention As described above, according to the present invention, even if a plurality of timer recordings are scheduled using ~'PS, each scheduled recording can be executed at a desired tape speed.

[Brief explanation of drawings]

FIG. 1 is a flowchart for explaining the operation of a video tape recorder embodying the present invention, FIG. 2 is a block diagram of main parts of a video tape recorder embodying the present invention, FIGS. 3, 4, FIG. 5 and FIG. 6 are diagrams each showing an example of program reservation. 3...VPS decoder, 6...Reservation recording circuit, 7...
・Data memory, ]3...Data discrimination circuit.

Claims (1)

[Claims] (1) A video tape recorder that is capable of timer scheduled recording using VPS and scheduled recording at different tape speeds, where the VPS timer scheduled recording is interrupted by a VPS interrupt code during execution of the first VPS timer scheduled recording. death,
When the first VPS timer scheduled recording is restarted after the second VPS timer scheduled recording is executed after this interruption, the tape speed at the time when the interruption occurs is stored in a storage means, A program reservation method in which the restarted first VPS timer reservation recording is executed at a tape speed stored in a storage means.