KR960007952B1 - Boradcasting program discrimination signal giving method & reservation recording method by using that - Google Patents

Abstract

The method is for making an identification code of a program by channel, start time and program category, and is for a reservation recording method by using the identification code are presented. The reservation recording method is also able to handle a time change of the program reserved by simplifying a reservation recording procedure. A reservation recording apparatus suitable to the method includes a tuner(1), a RF demodulator(2), a micom(3), a video recorder(4), a KBPS decoder(5), a memory(6), a timer(7), a remocon(8) and a barcode reader(9).

Description

How to give identification symbol of broadcasting program and reservation recording method using it

1 is a diagram showing an example of a program identification symbol according to the program identification symbol granting method according to the present invention.

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

3 is a diagram showing an example of a reservation recording apparatus to which the reservation recording method of the present invention is applied.

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

The present invention relates to a method for assigning each unique number to programs broadcasted by a broadcasting station and to a reserved recording method using the same. More particularly, the present invention indicates an identifier of a program as a channel, a start time, and a category of a program. It relates to a method of creating an identification symbol and a reservation recording method using the same.

The scheduled recording function of the video recorder sets the information (channel, date, time, length) of the program to be recorded in case of the absence of the user and uses the built-in timer to record the broadcast signal of the channel set at the set date and time. It is a function to record the set length.

Such scheduled recording is performed through the following process.

1) Setting of year and date

2) Channel Setting

3) setting of start time

4) Setting end time

5) Setting of mode (NORMAL, DAILY, WEEKLY)

6) Setting of speed mode (SP, LP, SLP)

The conventional scheduled recording setting method based on the time setting as described above requires complicated key manipulation along with a multi-step process, which leads to inconvenience in use and high risk of incorrect setting.

In addition, the conventional scheduled recording is performed by recording the broadcast signal of the set channel from the set date and time by the set length using a timer built in the video recorder. Since the time-controlled scheduled recording is controlled only by the set time and the set channel, there is no relation to what is actually recorded.

That is, if a time change occurs in a program after the scheduled recording setting for the program guided by the program guide is completed, such a change should be announced before the execution and at the same time, a new scheduled recording setting should be made according to the notice. . If the changed content is not noticed or the new scheduled recording setting is not completed according to the notice, the video recorder will generate a false record.

SUMMARY OF THE INVENTION An object of the present invention is to provide a method for assigning a program identifier that can be easily inferred from the program guide table, which is devised to solve the above problems.

Another object of the present invention is to provide a new reserved recording method which simplifies the procedure of setting a scheduled recording and avoids the time change of the reserved program by avoiding the conventional scheduled recording method for inputting a program start time and length. have.

The method for assigning a program identifier according to the present invention which achieves the above object is characterized in that it is created by the broadcast station name and the category of the program on the program guide table to ensure transparency to the user.

The reserved recording method of the present invention which achieves the above another object multiplexes and transmits a unique identification symbol to the program, and on the receiving side, detects the transmitted identification symbol using an appropriate decoder and compares it with the identification symbol of the pre-recorded reserved recording program. Thus, when the two identification symbols coincide, the reservation recording is started. Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As is well known, the VPS (Video Program System), which has been disclosed since 1985 in the Federal Republic of Germany, is a representative embodiment of a method of controlling a video recorder by the above input signal. The VPS signal is multiplexed and transmitted as a digital signal encoded on the horizontal scanning line selected during the vertical blanking period VBI of the television signal. The VPS signal is composed of a signal that can control the recording mode of the video recorder when an appropriate reserved recording cannot be performed due to a delay, change or cancellation of the program at a predetermined time and a program identification symbol.

Meanwhile, in the Republic of Korea, KBPS (Korean Brodadcasting 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 resin return period.

5 is a diagram illustrating a signal form of a horizontal scan line multiplexed with a KBPS signal. The KBPS signal is transmitted multiplexed to one or more horizontal scanning lines transmitted during the vertical retrace period of the even and odd feeds. As shown in FIG. 5, the KBPS signal is transmitted for 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 0 IRE 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 from the first word Word1 to the third word Word3. The header portion occupies the fourth word Word4 to the tenth word Word10 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 synchronizing signal uses Word1 and Word2 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 of the bit stream because the correct data cannot be recovered if any one bit in the bit stream is missing or an error occurs. The byte sync signal uses Word3 and its value is 1000 0100.

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

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

FC consists of Word4 and is used to check the continuity of the video signal and free run to the value of 0- $ F. PT is composed of Words and indicates the type of data part and has a value of 0- $ F.

PS is configured as Word6,7 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 displays the order of the broadcast date when transferring Weekly data as Word8. 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 displays the serial number for each broadcast program corresponding to each date in the daily data contained in the Weekly data as Word 9 and 10. The lower 7 bits of the 2 bytes indicate the serial number of the broadcast program, and the upper 1 bit is used as a control signal when the date is changed during the program of the day.

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

As shown in Table 3, when the packet type (PT) has a value of 4-7 and the lower 3 bits of the packet structure (PS) are 0, the data transmitted to Word19-Word35 of the data block is stored in the currently broadcast program. It has a program title.

Table 4 shows the types of KBPS LABEL according to the value of PT.

In the reserved recording method using a program-specific identification symbol of a video recorder employing a KBPS decoder, the identification symbol for the selected program is stored in a memory and the input signal is monitored to start recording when the same identification symbol appears. In addition, when a temporary change or cancellation of a program occurs, the video recorder may be controlled by a control signal transmitted together with an identification symbol, thereby preventing a false record from occurring.

In VPS, KBPS or similar, the identifier of a program is unique to the program and should not be duplicated with other programs. The program identifier will include a program identifier that is defined within the broadcast station along with a code that identifies the broadcast station. It is preferable that the identification symbol has a protocol commonly used in each broadcasting station for the purpose of transparency with the user. In addition, the identification symbol preferably has an association with its start time. The present invention proposes a method of creating a program identifier having transparency that can be easily written or recognized by a user.

1 shows an example of a program identification symbol created by the method for creating a program identification symbol according to the present invention. The identification symbol of the program according to the present invention is characterized by having location information and category information. The location information indicates the station name and the corresponding date on the program guide table, and the category information indicates the nature of the program.

In the program guide table shown in FIG. 1, it can be seen that the location information of a program can be specified by the broadcasting station name on the upper side and the date on the left side. That is, the location information of the program

Position information = channel information + time information.

Table 5 shows the classification according to the nature of the broadcast program and the classification code assigned thereto.

According to the position information determined on the program guide table shown in FIG. 1 and the category information determined by the classification code of Table 5, it is possible to assign the identification symbol to any program, and each identification symbol will not overlap.

2A to 2B are flowcharts showing a method for recording a liquid solution according to the present invention. The reservation recording method of the present invention shown in Figs. 2A to 2B is based on the premise that the identification symbol of the program created with reference to Fig. 1 and Table 5 is multiplexed and transmitted to the television signal. In the reservation recording setting process according to FIG. 2A, it is first determined whether the reservation recording setting is made. If not in the scheduled recording setting mode, the program ends (step 210).

The identification symbol of the selected program is input as the reserved recording data by referring to the program guide table and the category classification (step 220).

In general, scheduled recording is for programs within one month, so the information about the year during the start time is not very useful.

Therefore, in the present invention, it is assumed that information of a year is not designated at the time of reservation recording.

When the input of the identification symbol is completed, it is stored and the scheduled recording setting program ends (step 230).

A process of performing reserved recording according to FIG. 2B will be described. First, it is determined whether the scheduled recording is set. If the scheduled recording mode is not set, the scheduled recording program is terminated (step 240).

It is determined whether the reservation recording is in progress. If scheduled recording is in progress or paused, recording proceeds to step 300 (step 250).

The identification signal is detected by inspecting the currently broadcast television signal (step 270).

It is checked whether the detected identification symbol matches the identification symbol of the program for which the reserved recording is set. If not, the scheduled recording program is terminated (step 280).

Set the video recorder to recording mode and exit (step 290).

The identification symbol is detected by inspecting the currently broadcast television signal (step 300).

It is checked whether the detected identification symbol matches the identification symbol of the program for which reserved recording is set. If there is a match, the process proceeds to step 290 to set the video recorder to the recording mode and ends the scheduled recording program.

Check if the detected identifying symbol is a suspend / cancel signal. If the suspend / cancel signal, the process branches to step 340 (step 320).

The recording mode of the video recorder is released and the scheduled recording program is terminated (step 330).

The video recorder is set to the PAUSE state and the scheduled recording program is terminated (step 340).

3 is a block diagram showing an embodiment of a reserved recording apparatus directly for the reserved recording method of the present invention. The reservation recording apparatus according to the configuration of FIG. 3 includes a tuner 1, an RF demodulator 2, a microcomputer 3, a video recorder 4, a KBPS decoder 5, a memory 6, a timer 7, a remote controller ( 8), the barcode reader 9 is provided.

The tuner 1 outputs the television signal of the selected channel in response to the channel selection signal from the microcomputer 3. The RF demodulator 2 outputs a video signal and an audio signal by RF demodulating the television signal provided from the tuner 1.

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

The KBPS decoder 5 inputs an image signal including a KBPS signal from the RF demodulator 2, extracts the KBPS signal, and outputs the KBPS signal to the microcomputer 3.

The microcomputer 3 writes / reads the identification symbol of the selected program input thereto through the input means 8 into the memory 6 by means of a program embedded therein, and analyzes the data packet input from the KBPS decoder 5 The identification symbol of the program is extracted and compared with the contents of the memory 6, and the video recorder 4, the tuner 1 and the timer 7 are controlled according to the comparison result.

The recorder 8 or the barcode reader 9 inputs an identifier of a program selected for reserved recording among various programs described in the program table 10 or specifies other additional information (recording mode, driving mode, etc.). To be used.

The reservation recording operation by the configuration of FIG. 3 will be described in detail with reference to the flowchart of FIG.

The program table 10 has information about various programs. The identification symbol for a program for which reservation recording is required is stored as a target value in the memory 6 via the microcomputer 3 by an input device such as a key matrix 9 or a recocon 8 including a keypad. Scheduled recording setup process)

In the setting process of the reserved recording, the microcomputer 3 will control the necessary input and output. For example, the display apparatus (not shown) attached to the remote controller 8 will display the necessary information for checking the inputted identification symbol and for inputting the normal / repeat mode and the SP / LP / SLP mode.

Next, recording is performed by determining whether a broadcast program is a program for which reserved recording is set. The tuner 1 supplies an RF demodulated video / audio signal corresponding to the channel selection signal to the video recorder 4 and the KBPS decoder 5.

The KBPS decoder 5 decodes the program information from the KBPS signal multiplexed on the video signal and transmits the program information to the microcomputer 3. The microcomputer 3 separates the identification symbol of the program from the program information in the KBPS decoder 5 and compares it with the identification symbol for the selected program suited to the memory 6. If the two identification symbols match, the video recorder 4 is controlled to record the video / audio signal.

If commercials, temporary news, etc. are inserted during the reservation recording, the program information detected through the KBPS decoder 5 will have a special status value of pause / cancel. In this case, the microcomputer 3 switches the video recorder 4 to the pause mode and waits until the original program is broadcast.

As described above, the present invention provides a broadcast station name and a category that can be recognized in the program guide without inputting all information (channel, date, start time, length) about the program as in the time-controlled method. Using as an identification symbol has the advantage of simplifying the setting of the scheduled recording.

In addition, the present invention has the effect of preventing the mis-recording due to the change or cancellation of the program by performing the scheduled recording in synchronization with the time when the program is actually broadcast.

Claims (7)

Determining a classification code corresponding to the category of the program in the broadcast signal source; And combining the classification code with the position information indicating the position on the program guide table of the broadcast signal source. The method of claim 1, wherein the location information includes channel information, date information, and time information. The method of claim 2, wherein the date information comprises (month + day). In a reserved recording method of a KBPS system in which a television signal is multiplexed and transmitted with position information indicating a position of a program on a program guide table and an identification symbol of a program having category information according to the type of the program, the program-specific table shown in the program guide table or the like A reservation setting step of inputting the identifying symbol of as reservation recording data; Detecting the multiplexed identification symbol from the input television signal; And a recording step of recording the television signal while the identification symbol input in the reservation setting process is detected on the input television signal. 5. The method of claim 4, wherein the location information includes channel information, date information, and time information of a program. 6. The scheduled recording method according to claim 5, wherein the date information comprises (month + day). 5. The reserved recording method according to claim 4, wherein the category information is a classification symbol representing the content of a program.