KR20000033636A - Method for listing extended data service information of vcr - Google Patents

Abstract

PURPOSE: A method for listing extended data service information of VCR is provided to simplify the acknowledgement of information on recorded programs by way of displaying the information in a recorded order on the screen. CONSTITUTION: A method for listing extended data service information of VCR includes first thru sixth steps. The VCR includes an EDS decoder(21) decoding an EDS information transmitted with a broadcasting signal. At the first step(S103), the EDS information is read when a record mode of the VCR is selected. At the second step(S104), a message "EDS information exists" is displayed on an OSD screen. At the third step, the EDS information is recorded in the recorded order. At the forth step(S111), after the third step(S106),if the EDS information exists on an arbitrary variable k is determined. At the fifth step(S113), the EDS information list is displayed according to the value of the variable k when it is determined that the EDS information exists on the variable k.

Description

How to catalog EDCS information

The present invention relates to a method of cataloging EDS information of a VCR. In particular, the EDS information of a broadcast program transmitted from a broadcasting station in a recording mode is recorded and stored in a system memory by a user's selection, and then the program information recorded by the user is checked. If you press the EDS information list confirmation key on the remote control, you can display the EDS information list of the broadcasting programs in the order of the recording through the OSD screen. A method for listing EDS information of VCR.

In general, the VCR system is an electronic device having a recording / reproducing function that is commonly used with a TV receiver, and a circuit block diagram of such a VCR system is shown in FIG. 1.

The circuit block diagram includes a tuner 11 for receiving a regular broadcast signal from the antenna 10 and performing channel tuning, and a phase locked loop (PLL) control of the tuning signal provided from the tuner 11. The lock loop circuit 12, the microcomputer 13 for controlling the VCR system, the OSD processing unit 14 for generating the OSD screen, the system memory 15 for storing and storing predetermined information, and recording / reproducing. A deck unit 16 for performing an operation, a timer unit 17 for performing a clock, a channel reservation function, etc., an RF converter 18 for converting a video signal into an RF signal, and a video signal processing for processing a video signal. The circuit 19 includes an external TV receiver 20 and the like.

If you want to make a scheduled recording in the VCR as above, you can open the OS screen by operating the remote control key, and start the start time, end time, and recording speed of one channel and broadcast program that you want to make reservation recording on the OS screen. By setting it, the microcomputer 13 counts the time while the microcomputer 13 stores the reserved channel and the recording start time and end time, and when the time count result reaches the scheduled recording start time, the reserved channel previously stored in the currently set channel is stored. It is configured to record the broadcasting program for the desired time by switching to and end the recording when the end time is reached.

In addition, the microcomputer 13 outputs the function menu screen to the OS screen according to the user's selection. At this time, the user presets a channel stored in the system memory by using a remote controller to store the required channel in the region while using the remote control. In addition, you can adjust the time to adjust the time and schedule recording with Video Plus.

The reservation recording function is widely used in VPS (Video Program System) and PDC (Program Delivery Control) in Europe, KBPS in Korea and EDS in USA.

In particular, in the case of the United States, according to the EIA standard, broadcasting stations in the United States and the like transmit EDS (Extended Data Service) information in a vertical blanking interval of each broadcast program.

The EDS information includes additional information such as a description of a broadcast program, a program rate, and a local time.

Therefore, when the broadcasting program containing the above EDS information is recorded by the VCR system, the corresponding EDS information may be utilized for each broadcasting program.

For example, when the automatic clock set (ACS) function is applied to the EDS information, when a broadcast signal is received from a broadcasting station, the current date and time are automatically set by the control of the microcomputer 13.

However, in the related art, when reproducing a recording tape for recording a plurality of broadcast programs, there was no method of confirming the recorded program information in advance, so that there was a problem of continuously watching the broadcast program.

In other words, the conventional VCR has only a function of recording and playing back the recording tape, so that a method for checking recorded program information has been demanded.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems. In the recording mode, the EDS information of a broadcast program transmitted from a broadcasting station is recorded and stored in the system memory by the user's selection. When the EDS information list confirmation key on the remote control is pressed, EDS information list of the VCR is displayed to conveniently check the program information recorded so far by displaying the EDS information list of the broadcasting programs in the order of recording through the OSD screen. The purpose is to provide a method.

As a technical idea for achieving the object of the present invention, in a VCR having an EDS decoder for decoding EDS information transmitted from a broadcast station together with a broadcast signal, if the recording mode of the VCR is selected, the broadcast signal is checked for EDS information. After the process of reading the EDS information and the process of reading the EDS information in the above process, displaying a message indicating that the EDS information exists on the OSD screen, checking whether the EDS information list storage key provided in the remote controller is input, Recording and storing information in the order of recording; and checking whether EDS information exists in a random K value when the EDS information list confirmation key provided in the remote controller is input after the recording mode is terminated. When it is confirmed that EDS information exists in the random K value, the process of displaying the list of EDS information by K value through the OSD screen. The present invention is carried out.

1 is a block diagram showing a general VCR system,

2 is a block diagram of a VCR system for implementing the present invention;

3 is a flowchart illustrating a method of cataloging EDS information according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10: antenna 11: tuner

12: phase lock loop circuit 13: microcomputer

14: OSD processing unit 15: system memory

16: deck portion 17: timer portion

18: RF converter 19: Video signal processing circuit

20: TV receiver 21: EDS decoder

Hereinafter, with reference to the accompanying drawings, the configuration and operation of the embodiment for achieving the above object will be described.

2 is a system block diagram showing the main configuration of a VCR for implementing the EDS information cataloging method according to the present invention.

That is, the system block diagram illustrates a phase lock loop (PLL) control of a tuner 11 for receiving a regular broadcast signal from the antenna 10 and performing channel tuning, and a tuning signal provided from the tuner 11. A phase lock loop circuit 12, a microcomputer 13 for controlling a VCR system, an OSD processor 14 for generating an OSD screen, a system memory 15 for storing and storing predetermined information, and a recording. Deck unit 16 for performing / playback operation, timer unit 17 for performing clock, channel reservation function, etc., RF converter 18 for converting video signal to RF signal, and video processing video signal. And a signal processing circuit 19, an external TV receiver 20, and an EDS decoder 21 for receiving and decoding EDS (Extended Data Service) information provided in a vertical blanking section together with a broadcast program from a broadcasting station. do.

The process of the present invention implemented by the system configured as described above will be described with reference to the flowchart of FIG. 3.

The broadcast program signal transmitted from the broadcasting station carries Extended Data Service (EDS) information on line 21 of the vertical blanking interval. The EDS information includes program information, program rating, program description, Local time information is displayed.

Therefore, whenever the broadcast program signal is received by the tuner 11 of the VCR through the antenna 10, Extended Data Service (EDS) information is also received in the tuner 11 of the VCR in a vertical blanking period. The information is decoded using the EDS decoder 21.

On the other hand, when the user presses the recording key of the remote control to record a predetermined broadcast program desired by the user, the microcomputer 13 checks whether the recording key is input while the initial recording sequence is set to K = 1, and then continues with the EDS decoder ( 21, it is determined whether the EDS information is input by receiving a predetermined signal (S100, S101, S102).

As a result of the determination, if it is determined that the EDS information is input, the microcomputer 13 temporarily reads and stores the EDS information in RAM, which is one of the system memories 15, and then controls the signal to the OSD processor 14. Send a message to the CRT unit 20 to display a message such as " EDS information " (S103, S104).

At this time, when the user presses the EDS information list storage key provided in the remote controller, the microcomputer 13 checks this and records and stores the EDS information in the EEPROM, which is one of the system memories 15 (S105 and S106). ).

When the recording and storing process of the EDS information is completed, the microcomputer 13 sets the recording sequence number to K = K + 1, and then sends a control signal to the deck unit 16 to execute recording (S107 and S108).

If the user presses the recording stop key of the remote control during the recording, the microcomputer 13 checks this and sends a control signal to the deck unit 16 to stop the recording (S109).

At this time, when the user presses the EDS information list confirmation key provided on the remote controller, the microcomputer 13 checks again and reads the EDS information stored in the EEPROM of the system memory 15 and recorded the recorded data. It is determined whether the EDS information exists according to the broadcast program order, that is, the K value (S110 and S111).

At this time, if it is determined by the microcomputer 13 that the EDS information exists for each K value, the EDS information is read for each broadcast program sequence, that is, for each K value, recorded from an EEPROM of the system memory 15 ( S112).

For reference, as described above, the EDS information may be decoded through the EDS decoder 21 and then stored in the system memory 15 and read.

That is, there is a method of recording EDS information in a control track of a video tape when recording a broadcast program and then reading the EDS information in the control track when playing back in a playback mode. When EDS information is recorded in the control track, signals are distinguished from each other by 3: 7 instead of 6: 4, which is a pulse width ratio of a general control signal.

When the reading of the EDS information is completed, the microcomputer 13 sends a control signal to the OSD processing unit 14 to display the EDS information read in the reading process on the OSD screen of the CRT unit 20 (S113). ).

Accordingly, the EDS information is displayed in the CRT unit by recorded broadcast program order, that is, K value.

On the other hand, if it is determined by the microcomputer 13 that there is no EDS information for each K value, it sends a control signal to the OSD processing unit 14 and displays a message such as "no list contents" on the OSD screen of the CRT unit 20. It is made (S114).

As can be seen from the above description, the present invention checks whether there is EDS information in a selected broadcast signal when recording using a VCR having an EDS decoder 21 for decoding EDS information transmitted together with a broadcast signal from a broadcasting station. After the process of reading the EDS information and the process of reading the EDS information in the above process, displaying a message indicating that the EDS information exists on the OSD screen, checking whether the EDS information list storage key provided in the remote controller is inputted Recording and storing information in the order of recording; and checking whether EDS information exists in a random K value when the EDS information list confirmation key provided in the remote controller is input after the recording mode is terminated. If EDS information exists in the random K value, you can display the list of EDS information by K value through OSD screen. By an effect that allows you to conveniently view the recorded program information up to date.

Claims (1)

A VCR having an EDS decoder for decoding EDS information transmitted together with a broadcast signal from a broadcast station, (a) when the recording mode of the VCR is selected, checking whether there is EDS information in a broadcast signal and reading the EDS information; (b) displaying a message indicating that the EDS information exists on the OSD screen when the reading of the EDS information is completed in step (a); (c) confirming that the EDS information list storage key is entered and recording and storing the EDS information in recording order; (d) when the EDS information list confirmation key is input after the step (c) is completed, checking whether EDS information exists in a random K value; (e) In step (d), if it is confirmed that EDS information exists in any variable K value, the EDS information list of the VCR comprising the step of displaying the EDS information list for each K value through the OSD screen. Way.