KR960007949B1 - Continuous reservation recording method - Google Patents

Abstract

The method is for the continuous reservation recording of periodically or nonperiodically broadcasting series program according to a broadcasting information multiplexed with the television signal is provided. A video recorder comprises a decoder to decode an updated information and a multiplexed coded program identification tag. A reservation information comprises an identification code of a program requested for the continuous reservation recording. The requested program is recorded when the identification code included in the reservation information is identical to the coded identification code multiplexed with the television signal. The reservation information is automatically updated on the basis of the updated information multiplexed on the television signal inputted after the end of the reservation recording.

Description

Continuous scheduled recording method

1 is a diagram illustrating a signal form of a horizontal scan line multiplexed with a KBPS signal.

2 is a diagram illustrating an example of a program guide table.

3 is a block diagram of a reservation recording apparatus for performing a continuous reservation recording method according to the present invention.

4 is a flowchart showing a preferred embodiment of the continuous reservation recording method according to the present invention.

The present invention relates to a method of performing continuous scheduled recording for a selected broadcast program based on program information multiplexed on an input television signal. The continuous reservation recording method.

In reservation recording setting of a selected program, a method for setting additional information per day / daily / weekly as well as essential information such as start / last time for each program is well known. This includes both time-controlled and phenomenon-controlled methods.

In the time-controlled method, the start / duration time for the selected program is input to the timer. In order to simplify the input procedure when setting a reservation, a method of encoding a simple code or bar code in a form of a code using a coding table is also presented.

However, in such a time-controlled method, a false record occurs when a time change / cancellation occurs in a program.

On the other hand, if the selected program is a series of programs (hereinafter, referred to as a continuous program) several times, such as a drama, a new setting for the next conference broadcast is required in addition to the scheduled recording of the previous broadcast. To improve this, a daily / weekly continuous booking mode has been proposed.

In the normal mode, the selected program is recorded only once, and in the continuous mode, the selected program is recorded every day or every week. For example, if you want to record a series of dramas broadcast at 8:30 pm every Monday, enter the start / duration time of the selected program, and select the weekly continuous recording mode in the continuous mode and enter the timer. The timer controls the video recorder to start recording every 8:30 pm every Monday. However, in this continuous mode, if the selected program is broadcasted more than once in each repeating time unit (day or week), a new reserved recording setting is required for each broadcast number.

For example, if the drama is broadcast at 8:30 pm every Monday and Tuesday, separate scheduled recording settings for Monday broadcast and Tuesday broadcast are required.

In addition, in the conventional continuous recording mode, a malfunction in which recording is started may occur even when a program selected by the repetitive operation of the timer is no longer broadcasted. If the reserved recording data of the corresponding continuous recording mode is not erased after the drama finishes the last broadcast, unnecessary recording will be started at the same time next day or next week.

In the continuous recording mode, scheduled recording is possible only when the selected program is a program that is repeated periodically on a daily or weekly basis. If a program is aired and terminated only three times per week on Monday / Wed / Friday, a scheduled recording setting having three normal modes is required for a program having the same title or content.

Accordingly, it is an object of the present invention to provide a continuous scheduled recording method for easily setting and performing a scheduled recording of a periodic or irregular irregular program.

The continuous reservation recording method according to the present invention for achieving the above object is characterized in that it comprises a continuous reservation mode for continuously recording a periodic black or irregular continuous program in the order of occurrence of time. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

The present invention is characterized in that continuous reservation recording is performed by using update information accompanying a program identifier transmitted by being multiplexed with a television signal. The identification symbol is a symbol for distinguishing a program to be broadcast, and should not be duplicated with other programs, and the update information includes information on future broadcasts of the program.

Prior to describing the present invention in detail, a phenomenon control method of multiplexing and transmitting a unique identification symbol corresponding to each program to a television signal of each program will be described in order to improve the problems in the time-controlled method described above.

In the VPS (video program system) provided since 1985 in the Federal Republic of Germany, data encoding recording control information corresponding to a program change is transmitted as a teletext signal multiplexed to a video signal, and the video recorder is provided through an appropriate decoder. The information is extracted to control the video recorder. By this phenomenon-controlled method, a false record of an unexpected change in a predicted program can be prevented.

Meanwhile, in the Republic of Korea, KBPS (Korean Broadcasting Program System) is provided. In KBPS, 36 words of data each consisting of 8 bits (1 byte) are transmitted to a specific horizontal scanning line during the vertical blanking period.

1 is a diagram showing horizontal scanning lines multiplexed with data in KBPS. The KBPS signal is transmitted multiplexed to one or more horizontal scan lines transmitted during the vertical retrace period of the even and odd feeds. As shown in FIG. 1, the KBPS signal is transmitted for a period of 51 mu S except for the horizontal synchronizing signal and the burst synchronizing signal. The high level of the KBPS signal is 701RE equal to the back level and the low level has a value of 0IRE equal to the pedestal level. When 36 words consisting of 8 bits are transferred during 51µS, the clock frequency is 5.7272MHz.

The KBPS signal is composed of 36 words, and each word can be classified into a synchronization signal part, a header part, and a data part. The synchronization signal portion occupies the first lightning word (Word 1) to the third word (Word 3). The header portion occupies the fourth word (Word 4) to the tenth word (Word 10) and the data portion occupies the rest.

Table 1 shows the configuration of the synchronization signal section in the KBPS signal.

The synchronization signal portion is composed of a clock synchronization signal and a byte synchronization signal. The clock synchronization signal uses Word 1 and Word 2 as reference signals for synchronizing the data clock synchronization of the KBPS signal received from the KBPS receiver, and the value is 1010 1010 1010 1010. The byte sync signal is a framing code and is a reference signal for byte sync. The signals in the data section are allocated in units of bytes and are used to select the position of the first byte in the bit sequence because the correct data cannot be recovered if any one bit in the bit sequence is missing or an error occurs. The byte sync signal uses Word 3 and its value is 1000 0100.

Table 2 shows the configuration of the header portion of the KBPS signal.

The header portion is configured as a feed counter FC, a packet type PT, a packet structure TS, a program counter PC and a program sub counter PSC. FC and PT are essential data and PS, PC and PSC depend on the type of PT.

FC consists of Word 4 and is used to check the continuity of the video signal and free run to the value of 0- $ F. PT is composed of Word 5 and indicates the type of data part and has a value of 0- $ F.

PS is configured as Word 6,7 and indicates the length of valid data block. The upper five bits of the two bytes indicate the length of the valid data block of the data portion. The maximum length of the valid data block of the data portion is 28. The lower 3 bits indicate the type of data block. If the lower 3 bits are 0, the content of the data block indicates KBPS LABEL, time, and title (8 characters) of the broadcast program. In the case of 001-010, when the title of a broadcast program exceeds 8 characters, it is used continuously. In the case of 011-111, it indicates summary information of a broadcast program.

The PC indicates the order of the broadcast date when transferring Weekly data as Word 8. Displays the serial number according to the date increase based on the current day of broadcasting. Using the PC, you can find the start point and end point of the Weekly data. The PC can count from 0- $ F as 1 byte, so it can display a total of 2 weeks.

The PSC is a Word and displays serial numbers for broadcast programs corresponding to each date in the daily data included in the Weekly data. The lower 7 bits of the 2 bytes indicate the serial number of the broadcast program, and the upper 1 bits are set when changing the date of the program on the day and used as a control signal.

Table 3 shows the configuration of the data section according to the PT.

As shown in Table 3, when the packet type PT has a value of 2, the data transmitted in the data block has update information of the currently broadcast program.

Table 4 shows the types of K8PS LABEL.

2 is a diagram illustrating an example of a program guide table. The timetable shown in FIG. 2 is based on the phenomenon-controlled method, and it is assumed that the identification code of the program is multiplexed and input to the television signal.

In FIG. 2, the program Jungden is aired on KBS1 (channel number 9) from 8:30 to 9:00 pm every Monday / Tuesday. In order to continuously schedule recording of this program, the conventional time-controlled method inputs the channel, date, time, and length information (CDTL) for the program on Monday and Tuesday, and then specifies the weekly continuous recording mode in the additional information. As a result, in the process of designating a CDTL for a program of the same title, there is a complexity of performing 14-17 key operations and a high error occurrence rate.

In the phenomenon-controlled method for improving this, the weekly recording mode is specified in the additional information after inputting the identification symbols ID13 and ID14 of the program for the Monday and Tuesday programs. In the phenomenon-controlled method, the complicated key manipulation for specifying the CTDL is improved.

The continuous reservation recording method according to the present invention is characterized by separating and interpreting update information multiplexed on a video signal of a recorded program, and updating or deleting reserved recording data according to whether to update or end broadcast.

3 is a block diagram of a reserved recording apparatus for performing the reserved recording method of the present invention. The reservation recording apparatus according to the configuration of FIG. 3 includes a tuner 1 and an RF demodulator 2.

The tuner 1 outputs the television signal of the selected channel in response to the channel selection signal provided from the microcomputer 3.

The RF demodulator 2 RF demodulates the television signal provided from the tuner 1 and outputs a video signal and an audio signal.

The video recorder 4 inputs video and audio signals from the RF demodulator 2.

The KBPS decoder 5 inputs an image signal multiplexed with the encoded data from the RF demodulator 2, decodes and outputs program information.

The microcomputer 3 writes / reads out information on the selected program (for example, an identifier of a program) input to the memory 6 through the remote controller 8 or the barcode reader 9 by a program embedded therein, Analyze the program information provided from the KBPS decoder 5, extract the required information (e.g., program identification symbols, update information, etc.) and compare it with the contents of the memory 6, and according to the comparison result, the video recorder (4) and tuner 1 are controlled.

The remote controller 8 or the barcode reader 9 is used to input information about a program selected for continuous reservation recording among various programs described in the program table 10 or to designate a normal / continuous reservation mode.

The microcomputer 3 periodically operates the tuner 1 and the decoder 3 with reference to the time information provided by the timer 7 to monitor whether the selected program is input.

4 is a flowchart showing a continuous reservation recording method according to the present invention.

The continuous reservation recording operation of the present invention shown in FIG. 4 will be described in detail with reference to the reservation recording apparatus of FIG.

First, information about a program requiring continuous scheduled recording is input. (S1)

The program table 10 has information about various programs. Information about a program requiring reservation recording is stored as a target value in the memory 6 via the microcomputer 3 by an input device such as a barcode reader 9 or a remote controller 8 including a keypad.

Among the programs shown in the program guide of FIG. 2, Jung-eun is aired at KBS1 from 8:30 to 9:00 pm every Monday / Tuesday. The identification symbol ID13 for this program is stored in the memory 6 via the microcomputer 3 by the barcode reader 9 or the remote controller 8. In setting the reserved recording, the microcomputer 3 will perform the control of the necessary input and output. For example, it will cause the display device attached to the remote controller 8 to display the necessary information for checking the inputted identification symbol and for entering the normal / continuous mode.

Next, recording is performed by determining whether a broadcast program is a program for which reserved recording is set. (S2)

On Monday at 8:30 pm, KBS1 broadcasts Jungden with the identifier ID13. The identification symbol will be transmitted using the vertical blanking interval of the video signal.

The tuner 1 supplies the RF demodulated video / audio signal corresponding to the channel selection signal to the video recorder 4 and the decoder 5.

The KBPS decoder 5 decodes program information having program information (identification symbol, update information, etc.) multiplexed on the video signal and transmits it to the microcomputer 3.

The microcomputer 3 separates the identification symbol ID13 of the program from the program information in the KBPS decoder 5 and compares it with the identification symbol ID13 for the selected program stored in the memory 6. If the two identification symbols match, the video recorder 4 is controlled to record the signal input thereto. Recording continues while a program with the same identifier as the selected program is being transferred.

After the end of the recording, new scheduled recording setting is automatically made based on the update information multiplexed and transmitted to the program. (S3)

When the recording of the selected program is finished, the microcomputer 3 examines the update information to determine whether to update or terminate the program. Programs broadcast on Monday will have update information about the program to be broadcast on Tuesday. The microcomputer 3 updates the reserved recording data stored in the memory 6 as update information to prepare for the next recording.

At 8:30 pm on Tuesday, repeat the above action to re-record your sweetheart. If the program being broadcast on Tuesday is the final episode, the update information will include a special marker to mark the end. In this case, the microcomputer 3 does not generate new reservation data. As a result, continuous recording for the program having the identification symbol ID13 is terminated.

As described above, in the continuous reservation recording method of the present invention, in the system in which the update information of the program is transmitted, the advantage of making the scheduled recording simply by setting one time a continuous program such as drama by extracting the update information and updating the reserved recording data. Has

Claims (2)

A coded program identification symbol multiplexed on a television signal. A reservation recording method of a video recorder having a decoder for decoding its update information, the method comprising: a first step of setting reservation information including an identification symbol of a program requiring continuous reservation recording; and; A second step of performing recording when the identification symbol multiplexed on the input television signal is identical to the identification symbol included in the reservation information; And a third step of automatically resetting the reservation information based on the update information multiplexed on the television signal input after the end of the recording. The method of claim 1, wherein the third process comprises: extracting update information multiplexed on an input television signal; Deciding whether to renew or broadcast by decoding the update information; And in the case of updating, generating new scheduled recording data as updated information.