KR980011194A - Schedule recording method in video cassette recorder - Google Patents

Abstract

The present invention relates to a video cassette recorder for automatically detecting a VPS and a PDC in which broadcast program information is inserted at different positions in a mutually exclusive data format within a vertical blanking period of an image signal in a video cassette recorder, The present invention relates to a method and apparatus for recording a schedule in a video cassette recorder, and more particularly, to a method and apparatus for recording reservation information in a video cassette recorder. Determining a reservation broadcasting system corresponding to a reservation channel from among the reservation information; (VPS or PdC) that can be received by the video cassette recorder is automatically detected and detected by the reservation broadcasting system set to the determined reservation broadcasting system and performing reservation recording with the reservation information The reservation broadcasting system can be stored, and a single videocassette recorder can accommodate both VPS and PDC in a country where both the VPS and the PDC are receivable, and can provide a reservation-recording capability.

Description

Schedule recording method in video cassette recorder

1 is a schematic block diagram of a video cassette recorder

2 is a flow chart schematically illustrating a reservation recording process according to the present invention.

DESCRIPTION OF THE REFERENCE NUMERALS

10: key input unit 20:

30: tuner and modulator 40: signal processor

50: VPS / PDC detection unit 60: Deck unit

More particularly, the present invention relates to a video cassette recorder that automatically determines a VPS (Video Proramming System) and a PDC (Program Delivery Control) in a video cassette recorder, The present invention relates to a video recording method for a video cassette recorder.

In general, the reservation broadcasting system inserts broadcast program information into an arbitrary horizontal line during a vertical blanking interval (VBI) of a video signal and transmits the resultant information to demodulate the inserted information based on vertical decoding And can perform functions such as scheduled recording of a broadcast program and automatic time setting.

In the meantime, the reservation broadcasting system includes KBPS (Korea Broadcasting Program System) in Korea, VPS (Video Programming System) in Germany, PDC (Program Delivery Control) Respectively. In addition, the data transmitted to the reservation broadcasting system includes standard time information of the broadcasting station, daily program information, and the like. When viewing the main functions of the data, it is possible to execute accurate reservation recording, Setting function, provision of program detailed guidance information, classification of broadcast program, confirmation of scheduled recording, and the like.

On the other hand, in Europe, the above-mentioned reservation broadcasting system can be divided into VPS region and PDC region depending on the country. VPS regions include Germany, Switzerland and Austria. PDC regions include United Kingdom, Italy, Belgium, have.

However, since these countries are locally adjacent to each other, they rarely share and watch broadcasts, and thus share the PDC with the VPS, which is a reservation broadcasting system. However, in the conventional video cassette recorder, when a country is selected as a menu screen for selecting a country to select a VPS or a PDC, it is automatically set as one reserved broadcasting system (VPS or PDC) corresponding to a country, Even if all broadcasting signals are received, only one set reservation broadcasting system can be used, and the other has to give up.

Accordingly, it is an object of the present invention to automatically detect whether a broadcast signal applied to a predetermined channel is a VPS or a PDC, in order to accommodate both the VPS and the PDC, which are reserved broadcasting systems, The PDC is judged and set to the reserved broadcasting system so that the reserved recording can be performed.

The reserved recording method in the video cassette legor according to the present invention is a method of automatically recording a VPS and a PDC in which a program cassette recorder inserts broadcast program information at different locations in a unique data format within a vertical blanking period of a video signal, And receiving and storing reservation information of a broadcast program to be scheduled to be recorded on the basis of a key operation of a user; Determining a reservation broadcasting system corresponding to a reservation channel from among the reservation information; And performing reservation recording with the reservation information set by setting the determined reservation broadcasting system.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a schematic block diagram of a video cassette recorder for explaining the present invention and includes a key input unit 10, a microcomputer 20, a tutor and a modulation unit 30, a signal processing unit 40, a deck unit 50, And a VPS / PDC detection unit 60.

In the figure, the key input unit 10 is an input means for performing an operation of the video cassette recorder, and is provided with a plurality of keys including a reserved recording setting key for operating the video cassette recorder, And outputs a corresponding key signal, typically using a remote controller capable of inputting from a remote location, and detecting and outputting a key signal on an infrared carrier received from the remote controller. The microcomputer 20 selectively controls each component to be described later, in particular, the VPS / PDC detection unit 60, as a means for performing overall operation control of the video cassette recorder in response to a key signal from the key input unit 10. [ (VPS, PDC) on the basis of the detection data from the key input unit 10, stores the detected data in a memory (not shown), and transmits the reservation setting key signal (For example, a reservation channel, a reservation start time, a reservation end time, and a reservation date) in a memory (not shown), judges a reservation broadcasting system corresponding to a reservation channel, And controls the reservation recording.

On the other hand, the tuner and the modulator 30 output the broadcast signals tuned and received under the control of the microcomputer 20, modulate the applied video and audio signals to a predetermined channel, and output the modulated signals to the RF output terminal. The signal processing unit 40 selectively outputs the video and audio signals from the tuner 30 and the line input and the video and audio signals from the deck unit 50 to be described later on the basis of the control of the microcomputer 20. [ To the tuner and modulation unit 30, the line output terminal, or the deck unit 50. The video signal and the audio signal are converted into a video signal and an audio signal, The on-screen display (OSD) block in the signal processing unit 40 reads out a predetermined character (font) signal under the control of the microcomputer 20, and outputs the synthesized image signal to a blue-back signal .

The deck unit 50 records the video and audio signals from the signal processing unit 40 on the video tape under the control of the microcomputer 20 and reproduces the video and audio signals recorded on the video tape, (40).

On the other hand, the VPS / PDC detecting section 60 detects the vertical blanking period of the broadcast signal from the tuner 30 under the control of the microcomputer 20 and determines whether the VPS data is inserted into the 16 horizontal lines within the vertical blanking period Detects whether or not the PDC data is inserted in the horizontal lines from the 7 horizontal lines to the 22 horizontal lines, and applies the detected data to the microcomputer 20.

Next, a detailed description will be given with reference to a schematic flow chart of FIG. 2, which is a schedule recording process according to a preferred embodiment of the present invention in a video cassette recorder having the above-described components.

First, the microcomputer 20 must have VPS or PDC data in order to perform scheduled recording using VPS or PDC data, which is a reservation broadcasting system. In the past, the preset broadcasting system data (VPS or PDC data) Were detected and stored. However, in order to allow the two video-cassette recorders to share the above two types of reservation broadcasting systems, the VPS / PDC detection unit 60 detects the VPS / PDC signal in the vertical blanking period of the broadcasting signal applied from the tuner 30, It is detected whether the VPS or PDC data is inserted in the corresponding horizontal line as shown in FIG. 5B. If inserted, the detected data is applied to the microcomputer 20. Then, the microcomputer 20 stores the detected data from the VPS / PDC detecting unit 60 in a memory (not shown) and uses the data as reservation information. In order to detect VPS / PDC data from a plurality of channels, Detects VPS / PDC data inserted into a channel of the VPS / PDC and confirms which reservation broadcasting system (VPS / PDC) can be accommodated for each channel and stores the VPS / PDC data.

The microcomputer 20 uses the OSD screen to display reservation information (for example, a reservation channel, a reservation start time, a reservation end time, a reservation date, and a reservation date) based on a predetermined reservation recording setting key operation of the user's key input unit 10 (Step 200).

Next, the microcomputer 20 reads out the reservation broadcasting system (VPS or PDC) corresponding to the reservation channel from the stored reservation information in the memory (not shown) (step 202).

Then, it is automatically set to the determined reservation broadcasting system (VPS or PDC) and scheduled recording is performed with the stored reservation information.

As described above, according to the present invention, a reservation broadcasting system that automatically detects and detects a reservation broadcasting system (VPS or PDC) that can be received by a channel that can be received by a video cassette recorder is stored, It is possible to provide convenience in that the VPS and the PDC can be accommodated in one video cassette recorder in the country and the reserved recording can be performed.

Claims (1)

A video cassette recorder automatically detects a VPS and a PDC in which broadcast program information is inserted at different positions in a mutually exclusive data format within a vertical blanking period of a video signal, Receiving and storing reservation information of a broadcast program to be scheduled to be recorded on the basis of a key operation of a user; Determining a reservation broadcasting system corresponding to a reservation channel from among the reservation information; Setting a reservation broadcast system as the determined reservation system and performing reservation recording with the reservation information. ※ Note: It is disclosed by the contents of the first application.