KR960007951B1 - Broadcasting program discrimination signal giving method & reservation recording method by using that - Google Patents

Abstract

The method is for assigning a program ID in order to deduct from a program schedule table and for simplifying the process of reserving a program. The basic manner is based upon a time priority of the broadcasting programs and the names of the broadcasting companies on the program schedule. The method comprises: a reservation setting stage of inputting the program identification code on the program schedule as a reservation recording data; a detection stage of detecting the identification code multiplexed from the television signal; and a recording stage of recording the television signal during detecting the identification code inputted in the reservation setting stage.

Description

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

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

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

3 is a flowchart showing another embodiment of the reservation recording method according to the present invention.

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

5 is a diagram showing the signal form of a horizontal scan line multiplexed with KBPS myth.

The present invention relates to a method for assigning each unique number to programs broadcast in a broadcasting station and to a reserved 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 recording by the time setting is performed by using a timer built in the video recorder to lengthen the broadcast signal of the set channel from the set date and time by the set length. Since the time-controlled scheduled recording is controlled only by the set time and the set channel, there is no relation to what the contents of the recorded program are.

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 that 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 of providing a program identification symbol according to the present invention, which achieves the above object, is characterized in that it follows the name of a broadcasting station and a time generation order of each broadcast program on a program guide table to ensure transparency to a 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 an identification symbol of a program and a signal capable of controlling the recording mode of the video recorder when proper scheduled recording cannot be performed due to a delay, change or cancellation of a program at a predetermined time.

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 retrace 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 scan 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 70 IRE 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 conventional signal for adjusting byte sync as a framing code. 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 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, PS 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 Word5 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 zero, the content of the data block indicates the 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 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 to prevent a false record from occurring. In VPS, KBPS, VPV 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 in order to ensure 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 a method for creating a program identifier according to the generation order of a program according to the present invention.

In Fig. 1, broadcasting station names are arranged on the horizontal axis of the diagram. The arrangement order of broadcast station names may be determined by a general recognition order or a special agreement between broadcasting stations.

On the vertical axis, or time axis, on the diagram, programs broadcast for each broadcasting station are arranged in the order of occurrence of time. For example, a program broadcast at 7 pm has a higher priority than a program broadcast at 8 pm. Each program also has an order value corresponding to its temporal order of occurrence. In the time range allowed by the reservation set time, each program should have an identification symbol that does not overlap each other. As an efficient way to solve this problem, an order value indicating a day or date may be added to an order value indicating a daily occurrence order. In this invention, the order value by day of the week is proposed. The reason for this is that in the case of a VPV (Video Programmed Video-Recorder) system, a program guide table for a certain period is transmitted at a time, and when there is a large amount, technical difficulties exist. In addition, setting a reservation period of one week or more in reservation recording is inefficient in most cases. The days of the week are specified to have a certain code in that order. For example, Sunday is 0, Monday is 1, --- and Saturday is 6. According to the above method, the identification symbol for a program on the program guide table is obtained by combining the order value of the vertical axis and the broadcast station name on the horizontal axis.

The identification symbol of the program created by the above method will be a symbol that can be easily recognized, and can have transparency recognized as the same by everyone.

2A-2B are flowcharts showing a reservation recording method according to the present invention. In the reservation recording setting process according to FIG. 2A, it is first determined whether the reservation recording is set. If not in the scheduled recording setting mode, the program ends (step 210).

Referring to the program guide table, the station name and sequence value of the selected program are input as reserved recording data (step 220).

When inputting the identification symbol is completed, save it and exit the scheduled recording setup program. (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 symbol 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 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).

If it is checked whether the detected identification symbol matches the identification symbol of the program for which the reserved recording is set, the process branches to step 290 to set the video recorder to the recording mode and ends the scheduled recording performing program (step 310).

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 flowchart showing another embodiment of the reservation recording method according to the present invention. The flowchart shown in FIG. 3 corresponds to a device employing the VPV method.

The VPV (Video Programmed Video-Recorder) multiplexes a program guide table to a television signal using a teletext method and stores the program guide table in a memory using an appropriate decoder. In setting the reserved recording, the program guide is converted into an appropriate video signal and displayed on the screen. The user selects a program by operating the cursor using the cursor control keys on the panel attached to the unit or the cursor control keys attached to the remote controller. Information on the identifying symbol, start time, and length of the selected program is stored in the memory, and the reserved recording is terminated.

In the above VPV method, the setting of the reservation recording is performed only by the cursor operation. Therefore, the VPV method cannot be used unless there is a cursor operation key on the operation panel or the remote controller attached to the device.

The present invention proposes a method for enabling reservation recording by the VPV method even in a device without a cursor operation key.

In the reservation recording setting process according to FIG. 3A, it is first determined whether the reservation recording is set. If not in the scheduled recording setting mode, the program ends (step 310).

Referring to the program guide table, the broadcasting station name and the sequence value of the selected program are input (step 320).

The program guide table is converted into information (start time, length, etc.) related to the program corresponding to the input identification symbol (step 330).

Save the converted program information and end the reserved recording setting program (step 340).

4 is a block diagram showing an embodiment of a reservation recording apparatus suitable for the reservation 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 bathing 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 including the KBPS signal from the RF demodulator 2, decodes the program information, and provides it to the microcomputer 3.

The VPV decoder 100 inputs a video signal including the VPV signal from the RF demodulator 2, decodes the program information, and provides the decoded program information to the microcomputer 3.

The microcomputer 3 records / reads the identification symbol of the selected program inputted through the input means 8 by the program embedded therein into the memory 6, interprets the input program information, and extracts the identification symbol of the program. This is 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 remote controller 8 or the black barcode reader 9 inputs an identification symbol of a program selected for scheduled 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. 4 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 remote controller 8 including a keypad. 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 device (not shown) attached to the remote controller 8 will be displayed to confirm the inputted identification symbol and to input 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 the RF demodulated video / audio signal corresponding to the channel selection signal to the video recorder 4, the KBPS decoder 5 and the VPV decoder 100.

The KBPS decoder 5 decodes the program information having the identification symbol of the program multiplexed on the video signal and transmits it 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 stored in the memory 6. If the two identification symbols match, the video recorder 4 is controlled to record the signal input thereto.

If a commercial, temporary news or the like is inserted during the reservation recording, the KBPS signal 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.

The reservation recording operation in the case of the VPV system shown in FIG. 3 will be described.

The VPV decoder 100 separates the identification symbol of the VPV signal multiplexed on the video signal and transmits it to the microcomputer 3.

The microcomputer 3 separates the program guide table from the program information in the VPV decoder 100 and stores it in the memory 6. The program information (identification symbol, start time, length, channel, etc.) corresponding to the identification symbol of the selected program is extracted and stored as a target value.

As described above, the present invention provides a method for processing broadcast station names and sequence values that can be recognized in the program guide table without inputting all information (channel, date, start time, length) about the program as in the time-controlled method. It is advantageous to simplify setting of scheduled recording by using it as an identification symbol of gram.

In addition, the present invention has the effect that it is possible to prevent the misrecording caused by the change or cancellation of the program by performing the scheduled recording in synchronization with the time when the program is actually broadcast.

Claims (6)

Determining an order value corresponding to a temporal order of occurrence for the program in the broadcast signal source; And a step of combining the name representing the broadcast signal source and the sequence value. The identification of a broadcast program according to claim 1, wherein the order value comprises a first order value indicating a day of the week to be broadcast and a second order value indicating a broadcast order on the day of the week corresponding to the first order value. How to give a symbol. A reservation recording method of a KBPS system for multiplexing and transmitting a television signal on a program guide table with a station name on a program guide table and an identification symbol of a program having an order value according to a time sequence of a program broadcasted by each broadcast station, the program recording table being provided in a program guide table. A reservation setting step of inputting a program unique non-unique identifier as reserved recording data; Detecting multiplexed identification symbols from the input television signal; And a recording process of recording the television signal while the identification symbol input in the reservation setting process is detected on the input television signal. 5. The reserved recording method according to claim 4, wherein the order value comprises a first order value indicating a day of the week to be broadcast and a second order value indicating a sequential broadcast order on the day of the week corresponding to the first order value. . In a reserved recording method of a broadcasting system that digitally encodes information (starting time, channel, length, etc.) related to a program presented in a program guide and multiplexes it to a television signal, and transmits the broadcast, the broadcast station name in the program guide and the broadcast on each station. An input process of inputting an order value according to a temporal order of occurrence of the program; A conversion process of obtaining information (start time, channel, length, etc.) about a program corresponding to the broadcast station name and an order value with reference to the received program guide table; And recording the broadcast signal of the channel by the length at the start time. 7. The reserved recording method according to claim 6, wherein the order value comprises a first order value indicating a day of the week to be broadcast and a second order value indicating a sequential broadcast order on the day of the week corresponding to the first order value. .