KR960005925B1 - Bs receiver using broadcasting system control apparatus - Google Patents

Abstract

The broadcasting system control unit comprises an audio set(20) for receiving a signal from a satellite receiver or a VCR(60), a selecting unit for producing outputs from the VCR input signals when the satellite receiver is off and producing a VCR output signal selectively according to the control signal in a multiplexer(80), a TV(40) for displaying output signals from the selecting unit, and a transistor for transforming a signal from the satellite receiver to a control signal.

Description

Broadcasting system controller using satellite receiver

1 is a circuit diagram showing a conventional broadcasting system control apparatus.

2 is a circuit diagram showing an embodiment of a broadcasting system control apparatus using a satellite receiver according to the present invention.

* Explanation of symbols for main parts of the drawings

2: Audio left signal input terminal 4: Audio light signal input terminal

6: Video signal input terminal 8: Control signal input terminal

20: Audio Set 40: TV

60: video caster recorder 80: multiplexer

B +: voltage R1, R2: resistance

Q1: transistor

The present invention relates to a broadcasting system control apparatus using a satellite receiver, and more particularly, a satellite receiver capable of controlling signals output to audio and television by controlling the power of a multiplexer using a signal output from a satellite receiver. It relates to a broadcast system control method used.

In general, when a television, a video cassette recorder (hereinafter referred to as a VCR), an audio and a satellite receiver are used as a set, a scart for connection between them in accordance with a certain communication protocol is used in Europe. In the VCR, a constant voltage B ⁺ is generated when the power is turned on.

1 is a circuit diagram showing a conventional broadcasting system control apparatus.

Here, the audio left signal (hereinafter referred to as 'AL'), the audio right signal (hereinafter referred to as 'AR'), and the video signal (hereinafter referred to as 'V') from the satellite receiver. AL input terminal (2), AR input terminal (4) and V input terminal (6) and the multiplexer (80) and audio set are inputted to the multiplexer (80), audio set (20) and VCR (60). It is connected to the input of the VCR 60.

Also, AL, AR, and V output from the multiplexer 80 are connected to be input to the AL input terminal, the AR input terminal, and the V input terminal of the television.

In addition, a return audio left signal (referred to as "RAL"), a return audio right signal (referred to as "RAL") and a return video signal (return) output from the VCR 60 are returned. Vedio Signal: hereinafter referred to as 'RV') and a power source B + is connected to the multiplexer 80.

The connection between the apparatuses comprised above used the scart.

Referring to the operation according to the configuration described above, the signal received from the satellite receiver is the audio set 20 and the multiplexer 80 from the AL input terminal (2) and AR input terminal (4), V input terminal (6) And VCR 60. The signal output from the satellite receiver is input to the multiplexer 80 for output to the television 40. However, since the multiplexer 80 changes the signal path by a predetermined voltage as a signal conversion switch, a signal controlled and output by the power B + output from the VCR 60 is determined. That is, since the Cartesian distribution is controlled by the VCR 60, when the VCR 60 is on, the output of the television 40 becomes the output of the VCR 80.

TABLE 1

Conventional Broadcast System Control Operation

As shown in Table 1, the control operation of the broadcasting system is performed in the circuit shown in FIG. 1. The above operation is described separately for each mode according to on or off of the satellite receiver and the VCR 60. The first mode is when both the satellite receiver and the VCR 60 are on, the second mode is when only the satellite receiver is on, and the third mode is when only the VCR 60 is on.

First mode:

In the audio 20, the signal received from the satellite receiver is output, and the output signal of the VCR 60 is output to the television 40. At this time, the signal of the satellite receiver input to the television 40 is blocked by the multiplexer 80, AR, Al, V output from the satellite receiver is input to the VCR (60) and can be recorded in the VCR (60).

Second mode:

Both the audio set 20 and the television 40 output signals received from the satellite receiver.

Third mode:

At this time, since the satellite receiver is in a standby state, that is, the signal is not received from the satellite receiver, no signal is provided to the audio 20, and the signal of the VCR 60 is input from the television 40.

As described above, in the conventional broadcasting system control apparatus, the main function is the VCR 60, and the control of the system is controlled by the VCR 60, and there is a problem in that the control of the system is not performed smoothly.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to construct a broadcasting system in which a satellite receiver becomes a main function and can control a system.

Features of the broadcast system control apparatus using the satellite receiver according to the present invention for achieving the above object is a multiplexer to receive a signal from a satellite receiver and a video cassette recorder, an audio set and a video cassette to receive a signal from the satellite receiver A broadcasting system control apparatus using a satellite receiver comprising a recorder and a television to which signals are input from the multiplexer, and output selection is performed by a control signal provided from a satellite receiver; An audio set to which signals are input from the satellite receiver and the video tape recorder; Selecting means for selectively outputting a signal input from a satellite receiver and a video cassette recorder by a control signal; A television for outputting a signal output by said selecting means; It consists of a control means for modifying the signal provided from the satellite receiver to output a control signal.

Hereinafter, a preferred embodiment of a broadcast system control apparatus using a satellite receiver according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a circuit diagram showing an embodiment of a broadcasting system control apparatus using a satellite receiver according to the present invention.

Here, the reference numerals of the same parts as those of the first circuit, which is a conventional circuit diagram, will not be described, and only differently described, the AR input terminal of the audio set 20 is connected to the RAR output terminal of the VCR 60, and the audio set 20 ) AL input terminal is connected to the RAL output terminal of the VCR (60). The power supply terminal of the VCR 60 is grounded, and the power input from the microcomputer configured in the satellite receiver for controlling the multiplexer 80 is inputted by inverting the signal input through the control signal input terminal 8.

In the circuit for inverting the control signal, the control signal input terminal 8 is connected to the base of the transistor Q1 through the resistor R2, the emitter of the transistor Q1 is grounded, and The collector is connected to the power supply B + input terminal through a resistor R1 and connected to the voltage input terminal of the multiplexer 80.

In the operation of the circuit for inverting the control signal configured as described above, when a high signal is applied through the control signal input terminal 8, the transistor Q1 is turned on, and the voltage B + is discharged through the ground so that the multiplexer ( The low signal is applied to the voltage input terminal of 80). On the contrary, when the low signal is applied through the control signal input terminal 8, the transistor Q2 is turned off, and therefore the high signal is applied to the voltage input terminal of the multiplexer 80.

The connection between the apparatuses comprised above used the scart.

In order to describe the operation of the present invention configured as described above in more detail with reference to [Table 2], it will be described separately for each mode according to the on or off of the satellite receiver.

The first mode is when the satellite receiver is on, the second mode is when the satellite receiver is off, and the VCR 60 is always on in the first and second modes.

First mode:

The audio set 20 outputs the signal of the VCR 60, and the multiplexer 80 outputs the signal of the satellite receiver to the television 40 according to the control signal. When the satellite receiver is turned on, the signal of the satellite receiver is input to the audio set 20 and the signal of the VCR is cut off.

Second mode:

Since the satellite receiver is off, the audio set 20 outputs the signal output from the VCR 60, and the multiplexer 80 selects the output signal of the VCR 60 according to the control signal and outputs it to the television 40. Therefore, the television 40 outputs the signal of the VCR 60.

As described above, according to the broadcasting system control apparatus using the satellite receiver according to the present invention, when the television, the VCR, and the satellite receiver are configured, the system can be controlled by using the satellite receiver as a main function, so that the control of the broadcasting system is accurate. It can be done smoothly and smoothly, so it can be operated effectively.

Claims (1)

A multiplexer for receiving signals from a satellite receiver and a video cassette recorder, an audio set and video cassette recorder for receiving signals from a satellite receiver, and a television for receiving signals from the multiplexer and outputting the control signals provided from the satellite receiver. A broadcasting system control apparatus using a satellite receiver in which a selection is made; An audio set to which signals are input from the satellite receiver and the video tape recorder; Selecting means for outputting a signal input from the video cassette recorder when the satellite receiver is in an off state, and selectively outputting an output signal of the VCR 60 in response to a control signal in the multiplexer 80; A television for outputting a signal output by said selecting means; Transistors provided from the satellite receiver and output as a control signal, a first resistor to which the control signal is applied, an emitter to ground, a collector to a voltage, and a base to which the first resistor is applied. Broadcasting system control apparatus using a satellite receiver comprising a control means consisting of.