KR100198340B1 - Canal+ broadcasting auto-selecting method - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a Vial system capable of receiving Canal Plus broadcasts. In the related art, when a Canal Plus broadcast channel is set in a state in which a Canal Plus decoder is connected to a Vialal system, a user relies on the interactive OSD menu screen. It was inconvenient because the channel setting work was performed after prioritizing VSI and TV.

The present invention checks whether the system is in the canal plus memory mode (step 101), if the canal plus memory mode is the recording mode (step 102), and in the subsequent recording mode, auto search or the like. Check if the manual search mode is selected (step 103), and in these search modes, the canal plus memory is turned off (step 104), and when the search mode is not in the search mode, the canal channel signal is received for a certain second, and it is checked whether it is continuous ( Step 105), it provides a canal plus broadcast auto-selection method characterized by being processed by a canal auto-selection processing program 100 having a series of processing steps to turn the canal memory on (step 106).

Description

How to automatically select Canal Plus

The present invention relates to a Canal Plus Broadcast Channel Search (SERCH) means in Europe for Vialal, which particularly allows the CanalPlus broadcast channel to store unique CanalPlus broadcast channels, especially in VSIS systems receiving SECAM type television broadcasts. It is to ensure the ease of time.

Unlike normal broadcasting, CANAL + (C +) broadcasting in SECAM type television broadcasting transmits with different delays for each video signal, and the receiving side transmits with encryption signal to make normal signal. A decoder is used to decode the content, and a clear signal can be seen by obtaining a normal signal through such a canal decoder. In some cases, the signal may be delayed and transmitted as described above.

In general, the decoder has an encryption function, so that the broadcaster will inform the general viewers who have the decoder of the password every month. If the user does not know the password, the decoder will not be able to see the screen correctly.

Accordingly, a canal plus decoder is required to receive a canal plus broadcast signal and obtain a normal picture. In a conventional VSI system, a canal plus decoder is provided and a canal plus decoder is connected through the jack.

Afterwards, when the canal plus channel is tuned in the system, the demodulator output of the VSI system is connected to the input of the canal plus decoder, and the canal plus decoder restores and outputs the input canal plus signal normally and at the same time when the control signal output is normally restored. According to the logic 1 signal, the restored normal signal of the canal plus decoder is supplied to the video signal processing unit of the Vial system according to the logic 1 signal, and thus canal plus broadcasting can be received in the Vialal system mode.

Likewise, if the canal plus decoder of the above example is connected to the TV receiver set, canal plus broadcast reception is possible in the same manner.

However, since the TV set is normally connected to the VSI system and the Canal Plus decoder is connected to the VSI system again, the TV receiver mode records a broadcast with the VSI system and the Canal Plus broadcast is watched by the TV receiver. There was a flaw in not being able to watch normal screens.

Of course, it is possible to separate the Canal Plus decoder from the VSI system and connect it directly to the TV set, but the process of changing the connection was very cumbersome and very inconvenient to use.

On the other hand, such a system is shown as an example as shown in FIG.

In this case, the VSI set 42 to which the antenna 44 is connected, the TV set set 41 connected to the V set and the mutual jack, etc., and the canal plus connected to the V set 42 side. It consists of a configuration including a decoder (43) and the like, these sets are connected to each other via a scart jack (S) as shown in FIG.

At this time, the pins of the scart jack (S) are composed of the following signal relationship.

function Pin number function Pin number Audio output A 3 Green signal input / output 11 Audio output B One Green signal ground 9 Audio input A 6 Green signal input / output 7 Audio input B 2 Green signal ground 5 Audio ground 4 Blanking I / O 16 Video output 19 Blanking ground 18 Video input 20 Data line 1 12 Video grounding 17 Data line 2 10 TV / Vial Switching Signal 8 Data line ground 14 Red signal input / output 15 grounding 21 Signal ground 13

In this system, the data and control signals were exchanged by the above-described scart jack S, and the CANAL PLUS broadcast descrambles the scrambled signal through the CANAL PLUS decoder 43 and then the TV set set 41 By watching the broadcast or through the VSI set 42 is to perform a recording operation.

In this case, one canal plus decoder 43 is provided in the system, and one tuner is provided on the VSI set 42 side and the TV receiver set 41 side. Each user has a canal plus broadcast TV receiver. While viewing the OS menu screen on the set 41 side or VSI set 42 side, the user manually selected and viewed or performed a recording operation.

In addition, Figure 2 shows the prior art disclosed in Korean Utility Code No. 91-4789, where canal can be received in the TV mode through the Canal Plus decoder 3 connected to the VSI system (1) side. It is made up of a system.

That is, the TV receiver 2 side system configuration thereof is connected to the TV input terminal of the video signal processing unit 24 via the antenna 10-RF terminal-tuner 22 and the demodulator 23. The video input terminal of the video signal processing unit 24 is connected to the video input terminal of the VSI system 1.

In addition, the video output terminal of the VSI system 1 is connected to the VSI input terminal of the video signal processing unit 24, and the TV input terminal and the VSI system input terminal of the video signal processing unit 24 are connected to the VSI system 1. A switching switch 25 in which Vs / Vs are switched in accordance with the mode switching signal is connected to the control signal output terminal of the Vsial system 1.

In the VSI system 1, an antenna 10 or a modulator 18 is connected to an RF output terminal via a VSI / TV switch 17, and an antenna 10 is connected to the tuner 12. The tuner 12 is again connected to the demodulator 13-the second switch 6 of the tuner input end side of the video signal processor 14-the output end of the canal plus decoder 3, and the input end of the canal plus decoder 3; The demodulator 13 or the TV receiver 2 side demodulator 23 is connected via the first switch 5.

The VSI system input terminal of the TV-side video signal processor 24 is connected to an output terminal of the video signal processor 14 or the canal plus detector 3 via a third switch 7, and the switch controller 4 is connected. The control signal output terminal of the canal plus detector 3, the VSI / TV mode switching signal output terminal VTR / TV and the canal plus channel designation signal output terminal C + P of the microcomputer 16 are connected, respectively. In combination with the first, second, and third switches (5), (6), (7), and V / T switch (17), (24), and antenna switch (19), respectively. It is connected so that a 4th control signal may be supplied.

In such a system, the canal plus decoder 3 outputs a logic 1 signal to the control signal output terminal only when the canal plus broadcast signal is input and restored to a normal signal.

The canal plus channel designation signal of the microcomputer 16 becomes a logical one when a specific channel is designated as a canal plus channel in advance and the receiving channel becomes a designated canal plus channel.

In addition, the VSI / TI switch is set to logic 1 in the VRS system mode and logic 0 in the TV mode.

In this system, the broadcast viewing and recording environment of VSI and TV is summarized as follows.

1. General broadcast viewing through TV receiver set at power off of VSI system

2. Watch Canal Plus broadcast through TV receiver set during VSI system power off

3. General broadcast recording through VSI system and general broadcast viewing through TV set

4. Canal Plus broadcast recording through VSI system and regular broadcast viewing through TV set

5. Canal Plus broadcasting through TV receiver set at the same time as general broadcasting recording through VSI system

6. Watch and record Canal Plus broadcast through VSI system

7. Watch and record general broadcasting through VSI system

8. Watch and record Canal Plus broadcasts through your TV set

9. Watch and record general broadcasting through TV set

And so on.

As described above, in the conventional system, the priority of VSI tuner and TV tuner is determined by user selection, and thus, the canal plus channel can be memorized, thereby avoiding the inconvenience of memorizing the canal broadcast channel of such system. It was difficult.

An object of the present invention is to allow the system to automatically store the canal plus broadcast channel in the canal memory in order to improve the above problems can be made easy to set up the canal channel.

In particular, the present invention checks whether the canal plus memory mode is in the system so that the recording mode can be recorded in the canal plus memory mode, and in the case of the recording mode, the auto search or the manual search mode is checked. Canal Plus, which is performed by a canal auto-selection processing program that has a series of processing steps to turn off canal plus memory in search mode, and to receive canal channel signals for a random second when not in search mode, and to turn on canal memory if it is continuous. It is characterized by the automatic broadcast selection method.

Hereinafter, more specific features of the present invention will be understood by describing the same in detail with the accompanying drawings.

1 is a schematic diagram showing a connection state between a VCR (Video Cassette Recorder) system and a Canal Plus (CA +) detector connected to a general TV receiver.

2 is an exemplary diagram illustrating the system of FIG. 1 in more detail.

3 is a pin arrangement of a typical skajack

4 is a system circuit block diagram related to the present invention.

5 is a reference diagram showing a canal automatic selection processing program;

Explanation of symbols on the main parts of the drawings

51: microcomputer 52: video / audio circuits 53: PIF circuit

54: TV set 55: External jack 56: Canal Plus decoder

57: canal jack 58: switch control

S1 to S5: first to fifth switches

100: Canal automatic selection processing program

4 illustrates a system circuit block related to the present invention.

Here, a canal jack 57 and a canal decoder 56 connected to the canal jack 57 are connected through a third switch S3 in a PIF circuit 53 connected to an antenna; A fifth switch connected between the TV receiver 54 and the video / audio circuit 52 and the video / audio circuit 52 and the external jack 55 connected from the antenna via the fourth switch S4. (S5), the first and second switches (S1, S2) connected between the audio / video circuit 52 and the PI F circuit 53, and a switch control unit for controlling these switches (S1 to S5). 58) and a system microcomputer 51 or the like.

On the other hand, the system is equipped with a canal automatic selection processing program 100 as shown in FIG.

In this case, the system checks whether it is in canal plus memory mode (step 101), if it is in canal plus memory mode or not (step 102), and in the subsequent recording mode, it is checked whether it is in auto search or manual search mode (step 103). In these search modes, the CANAL PLUS memory is turned off (step 104), and when the search mode is not in the search mode, the CANAL channel signal is received for a certain second, and the channel is continuously checked (step 105). (Step 105) It has a series of processing steps.

The present invention having such a configuration will be described below with reference to the operation state with respect to the system circuit of FIG.

mode TV / VSI TV / Line REC C + memory C + S5 S4 S3 S2 S1 Power off * * * * U One 0 One 0 0 radish 0 One One 0 0 play Vsial * * * * One One 0 0 0 TV * * * U One 0 One 0 0 radish 0 One One 0 0 EE mode Vsial TV * * U One One 0 One 0 radish One One 0 0 0 * * U One One One One 0 line radish One One One 0 One TV TV REC MEM U 0 One 0 One 0 radish 0 One 0 0 0 NOMEM U One 0 One 0 0 radish 0 One One 0 0 NOREC * U One 0 One 0 0 radish 0 One One 0 0 line * * U One 0 One One 0 radish 0 One One 0 One

1 is logic H and 0 is logic L.

In other words, as shown above, the presence or absence of canal plus memory exists only in the REC mode in this mode, and when the user's auto search or manual search is performed, the canal is turned off in the canal plus memory. In this case, it is determined whether or not the channel signal is a canal plus channel for about 1 second, and in the case of a canal plus channel, the canal plus MEM is continuously turned on.

The channel will then remain on with Canal Plus MEM set to on.

This operation is performed by the microcomputer 51 together with the canal auto-selection processing program 100 as shown in FIG. 5, which checks whether the system has the canal plus memory mode (step 101), and if the canal plus memory mode is the recording mode. Check the authorization (step 102), and then in the recording mode, check whether it is auto search or manual search mode (step 103). In these search modes, canal plus memory is turned off (step 104). A canal channel signal is received for a certain second, and it is continuously checked (step 105), and if it is continuous, the canal memory is turned on (step 105).

The present invention can secure the convenience of using such a system because V / TI having a canal plus reception function can be automatically set even if the user does not set the channel setting of the canal plus broadcast while watching the menu screen. will be.

Claims (1)

In a Vialal system capable of receiving canal plus broadcasts including a canal plus decoder, a system microcomputer, etc., the system checks whether the canal plus memory mode is selected (step 101), and if the canal plus memory mode is the recording mode (step 101). 102) In the subsequent recording mode, it is checked whether it is in the auto search or manual search mode (step 103). In these search modes, the canal plus memory is turned off (step 104). Canal plus broadcast, characterized in that it is processed by a canal auto-selection processing program 100 having a series of processing steps to receive and continuously check it (step 105), and if so, turn on the canal memory (step 105). Auto selection method