JPS60126937A - Broadcasting device - Google Patents

Abstract

PURPOSE:To receive a general broadcast in emergency when a normal television broadcast or chargeable television broadcast is watched at a terminal side and when neither one is received by sending out a control signal in emergency to a communitytelevision line and controlling the power source of each receiver. CONSTITUTION:A DC signal sent through a coaxial cable 5D is detected by a switch control detector 18 and signals f1...f12 from a general broadcasting part are coupled with the community television line 5A. On the other hand, a signal for controlling a reception control part 10 into an emergency state is led to an MODEM14 through the community television line 5, a branching device 6, two- way filter 8, amplifier 7, branching device 9, and branching filter 17, and demodulated and then inputted to a computer (CPU) 15 to outputs a signal for turning on the power source of the television receiver 13; when a broadcast of a voice, image, etc., is sent from the general broadcasting part, it is watched over all channels of the television receiver 13.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a broadcasting device that performs regular and paid television broadcasting, simultaneous broadcasting in emergencies, etc. using a television common channel.

Conventionally, television common listening lines were used. There are several examples of pay TV equipment and simultaneous broadcasting equipment.

However, it is possible to receive general TV broadcasts, pay TV broadcasts, and simultaneous broadcasts in emergencies such as fire outbreaks using the TV common listening line, and various controls such as these three reception selections can be performed by computer. There is no example yet of a comprehensive device designed to do this.

The present invention has been made in view of these points, and includes a broadcasting device that performs general television broadcasting, pay television broadcasting, and simultaneous broadcasting in times of emergencies, etc., using a common television line. Or, if you are watching pay TV broadcasts, or even if you are not watching anything, you can broadcast all at once in case of an emergency! The purpose is to provide broadcasting equipment.

The details of this invention will be explained below using examples. FIGS. 1 and 2 show an embodiment of the present invention. In Figure 1, 1 is an antenna for receiving normal television broadcasting, and 2 is an amplifier (4) for amplifying the television signal received by antenna 1 to the required voltage level.
, 3C is a switch S□ controlled by a computer (CPU) 53 to be described later, and the common terminal ■ is in contact with the contact ■ side to which the output of the amplifier (4) 2 is normally connected. This common terminal ■ is connected to the input terminal of switch (4) 4,
The purchasing point ■ is connected to the output terminal of an amplifier (c) sy, which will be described later. 5A and 5B are TV common lines, 6 is a branch (
BJ, 7 is an amplifier (B) for amplifying the downlink signal to the reception control unit 10, which will be described later. Amplify to voltage level. 8 is a bidirectional filter for transmitting control signals etc. from the receiver 10 to the TV common listening line 5; 9 is a branch (C);
The signal in the guest room is interrupted every minute.

Reference numeral 10 denotes a reception control section) which selects and receives a normal television broadcast or a desired pay television broadcast channel, sends a signal to a normal television receiver, and displays multiple images. Switches 11 and 12 are switch S2 controlled by a computer (CPU) (4) 16, which will be described later.
and s3, the common terminal O of S, is the transmission line 5B
The contact ■ is connected to the signal terminal of the converter 16, which will be described later.
The contacts ■ are connected to the contacts of the switch 5312, respectively. The common terminal ◎ of the switch 8312 is connected to the input terminal of the television receiver 13, and the contact ■ is connected to the converter 16.
is connected to the output terminal of Reference numeral 13 denotes a general television receiver, and 14 denotes a modem, or MODEM (A), which acts as an interface between the transmission signal from the television common line and the computer (CPU) 15.
, l5 receives the signal from the switch board 20 and the signal from the MODEM prisoner, and receives the switch S! The converter 16 outputs signals for controlling the #S @ and channel control signals for the converter 16 (α), and the converter 16 outputs pay TV broadcast signals (described later) to vacant channels on the TV receiver (for example, in the Tokyo area). is the second channel, and the Osaka area is the first channel). The switch panel 20 has a power supply 21 on/off, a switch 23 for selecting general broadcasting (ordinary television broadcasting) 22 or pay television broadcasting, a switch 24 for selecting a pay television broadcasting channel, and a channel indicator lamp ( i, gD) 25 (1a, 2a.

...6d) is a switch board.

Next, in FIG. 2, reference numeral 30 denotes a broadcast unit for simultaneously broadcasting to each receiving unit in the event of an emergency such as a fire outbreak. No. 3 is a microphone for use in voice broadcasting, and No. 32 is a television camera for video broadcasting that sends text and picture information to a television receiver.
33 receives the audio signal from microphone 31 at 4.57vl.
It is a combiner that combines the signal modulated to Hz and the lying image signal from the television camera 32 into one signal line.
In other words, modulators for 1 channel to 12 channels (
A divider 35 that divides signals 1) to 6) takes the signal (mixed signal of audio and video) divided by this divider 34 and divides it into frequencies (carrier waves) of each channel (channels 1 to 12) of general television broadcasting. ), and (1) to 0 correspond to each channel, and there are 12 modulators in total. 36 is a so-called high frequency synthesizer (4) for combining the signals of these 1 to 12 channels into one signal line, and 37 is an amplifier for amplifying the signal from this high frequency synthesizer (5) to a predetermined voltage level. ,
38 is a power source for the simultaneous broadcast section. 40 is the structure of the M-fee television broadcasting department, which broadcasts so-called pay-to-view television programs from here. 4 is video
Tape recorder (VTR), VTRj and VTR
J', VTR2 and VTR2” = VTRn and VTRn
Multiple sets of these are installed in sets of two, such as ', and pay TV broadcasts for multiple channels can be performed. The reason why there are two sets is to eliminate gaps in broadcasting when changing tapes, etc. 42 is a VTR controller 2 for alternately switching between the above-mentioned pair of VTRn and VTRn'; for example, when a tape on a VTRJ finishes playing, it automatically switches to VTRJ' where the next tape is set. It has become. 43 uses the audio and video signals of these VTRs to transmit frequencies between the low and high channels of general television broadcasting.
That is, it is a modulator for modulating a frequency (carrier wave) between 108 M)Iz and 170 MYiz, and a plurality of modulators (n units) are provided corresponding to each of a plurality of sets (n sets) of VTRs. 44 is an opening synthesizer for combining the pay TV broadcasting signals F1...Fn from these modulators into one signal line), and 45 is a signal from this high frequency synthesizer (B) for TV common listening. Send to track 5C, MO as described below
The signal from DEMω) 52 is sent to the TV common listening line 5, and the signal from MODEM prisoner 14 is sent to MODEMψ).
It is a bidirectional filter that works to transmit (to) 50 is a central control unit, - house number transmission switch 51, MODEM (
B) 52 is a computer (CPU) 03) ss and a display unit, MODEM (B) 52 is a computer (CPU) 03) modulating data from the computer (CPU) 53 to the reception control unit 10 and r- Perform evening demodulation,
A computer (CPU) (B) 53 performs polling for calling and scanning the reception control unit 10 and receives text from the terminal.
- Collect ps by polling in the evening. Reference numeral 60 is a host computer that processes r-evenings, tallies fees and audience ratings, and controls various types of pay TV broadcasting, such as disabling pay TV programs from being viewed by people in specific guest rooms. do.

Next, the operation of the broadcasting device having the above configuration will be explained. First, if you want to receive general TV broadcasts, do the following.

Normally, the switches J3r5211rS and 12 are all turned on (connected) to the contact ■ side. switch board 20
When power switch 2 is turned on, power is input to the television receiver 13. In the initial state, switch 2 for general broadcast reception is turned on.
Since antenna 2 is configured to automatically turn on, the general television broadcast signal received by antenna 1 is amplified to a predetermined voltage level by amplifier (4) 2.
The turnout (
B) Part of the signal is branched to 6. This branched signal passes through the bidirectional filter 8, is sent to the amplifier g1) 7, is amplified again, and is input to the television receiver 13 of the reception control section 10 through the splitter (C) 9 and the splitter 17, and is viewed. .

Next, the case of receiving pay television broadcasting will be explained. First, regarding pay TV broadcasting, depending on the control state of the computer (B) 530 of the second pay TV broadcasting section 40, the signal from the VTR 4J is sent to the VTR controller 42 and sent to one of the sets of VTRs (for example, VTRJ). VTR
I', etc.) is selected and output, but the video signal from this VTR is sent to a modulator 43 (for example, a modulator).
The above-mentioned carrier waves F1...Fn are modulated, and these are combined by a high frequency combiner (44). This composite signal passes through a bidirectional filter 45, is guided to the splitter body 4 shown in FIG.

In order to receive this pay TV broadcast, the switch 23 for pay TV reception on the switch panel 20 shown in FIG. 1 is turned on. As a result, the pay TV selection signal that will be generated from now on is input to the computer (CPU) (A) J5, and from this computer (CPU) (A) 15, f S,
71 o! and the signals controlling converter 1 and s, 12 and converter 1
A signal controlling 6 is output. These signals are
The common terminals ◎ of the switches 5211 and S, 12 are both connected to the contact ■ side. That is, the converter 16
is connected to the receiving line. Then, the converter 16 enters the operating state (the power of the converter 16 is turned on) by the control signal from the CPU 7 (CPU) (AHs). If you want to watch the channel, you can do so by pressing the channel selection switch 24.
Each time you press the button, you can change the channel in sequence. For example, initially 16 channels, i.e. Fl
In this case, the display rung 1d of the display run f25, which is opposite to Fl, lights up when receiving at the frequency F, but when this switch 24 is pressed again, it becomes possible to receive the two channels corresponding to the frequency F. ing. At this time, 2d of the display rung 25 lights up. Thereafter, the channel changes sequentially (each time you press it) and the corresponding lamp lights up. At the same time, these signals from the switch board 20 are input to the computer (CPU) (A) 15. And from this computer
A signal is issued to control the switch/controller.
The local oscillation frequency of the s''l-tar 16 is set to a predetermined value to receive a so-called desired channel of South Korean TV broadcasting. That is, the pay TV broadcasting frequency (carrier wave) F,
-Fn to all vacant channels of the TV receiver 13 on this computer 16 (for example, in the Tokyo area, select 12-1
In the Osaka area, it converts to the frequency of channel 1) and receives it.

Next, a case of simultaneous broadcasting in the event of an emergency situation such as a fire outbreak will be explained. First, the central control section 50 in FIG.
When you turn on the simultaneous broadcast switch 51 provided in
This signal is input to a computer (cptr) (B) 53, which outputs a control signal for controlling the -transmission section 30, the switch S13, and the reception control section 10. First, a signal for controlling the -transmission part 30 and the switches S and J is led to the -house number transmission part power supply 38, and this power supply is turned on. Then, the DC control signal superimposed on the coaxial cable 5D via the amplifier (C) sy reaches the switch S, 3. This DC signal is detected by the switch control detector 18, and the common terminal of the switch S, 3 is detected. Acts to connect ■ to the contact ■ side. As a result, the signals f1, . On the other hand, the signal for controlling the reception control section 10 to an emergency state is modulated by -MODEM (B) 52, guided to the branch (4) 4 via a bidirectional filter 45, and input to the television common listening line 5. , and further a turnout (B) 6
, bidirectional filter 8, amplifier) 7, splitter (C) 9,
The signal is guided through a demultiplexer 17 to MODEM) 14, demodulated, and then input to a computer (CPU) (A)J5. This input signal causes the computer (CPU) to switch S, 11. It outputs a signal to control the signals S and 12 and a signal 4g to turn on the image on the television receiver 13. In response to these signals, if you are receiving pay TV broadcasting, switch the switches S, 11, S, and 12 from contact ■ to contact ■, and when the TV receiver 13 is not receiving anything. If there is, it acts so that the t source of the television receiver 13 is turned on. That is, the state is the same as when the power switch 21 of the switch board 20 is turned on. In the above-mentioned state, when audio, video, etc. are broadcast from the door number sending section 30, the television receiver 1
They are viewed on all three channels.

That is, on the other hand, the audio, video, etc. 1d from the microphone 31S of the dispersion unit 30, the television sword 32, etc., is sent to the synthesizer 33.
After being synthesized by
Each of the signals is modulated by a modulator 35 and becomes the same frequency as the frequency of each channel of general television broadcasting, respectively. These signals f□...fsg are combined by a high frequency synthesizer 36 and amplified by an amplifier 37 to a predetermined voltage level. The output of the amplifier (Q37) is led to the branch (A) 4 via the switch 513 (as described above, the common terminal ◎ is connected to the contact ■ side) and is coupled to the television common listening line ll6sh. Thereafter, this signal is received by the television receiver 13 via the same route as when receiving general television broadcasting.

On the other hand, the central control unit 50 receives a data signal (signal modulated by MODEM (A) 74) from the reception control unit 10 indicating whether or not a pay TV program is being viewed and the channel number.
After receiving the data, it is demodulated by the MODEM (B) 52, and then inputted to the host computer 60 via the computer (CPU) ω), where it undergoes various data processing and is displayed on the display of the host Concutaro 0. That is, the reception status (audience rating, etc.), fees, etc. of pay television broadcasting are displayed. The host computer 60 also issues billing slips to the users of each reception control section 10.

In this invention, since it is constructed as described above, various effects as described below can be obtained.

■ Emergency home delivery and pay television broadcasting can be configured in one transmission system.

■ You can freely select and watch regular broadcasts and paid broadcasts using a switch installed in the reception area.

■ Even if the TV receiver is off or you are watching general or pay TV broadcasts, you can interrupt and broadcast all at once.

■ Pay TV viewing channel data can be processed by the central control unit computer and host computer installed at the center via a single transmission system to calculate audience ratings and fees, issue slips, etc.

■ Two VT units corresponding to one channel are connected via a VTR controller by a computer installed at the center.
By alternately operating R, the non-broadcast time during tape loading can be completely eliminated.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention. FIG. 1 is a system diagram showing a two-way transmission system including general television broadcasting and a reception control section provided on the terminal side, and FIG. 2 is a system diagram showing a simultaneous broadcasting section, FIG. 2 is a system diagram showing a pay television broadcasting section, a central control section, and a host computer section. DESCRIPTION OF SYMBOLS 1... Antenna, 3... Switch J, IO... Reception control unit, 11... Switch S, 12°゛° switch 53s13... Television receiver, 20... Switch board, 25 ...Indication lamp, 30...-House number feeder, 3
ノ...Microphone, 32...TV camera, 40
...Pay television broadcasting department, 50...Central control section, 60
...Host computer.

Claims (1)

[Claims] A synthesizer that synthesizes a signal obtained by modulating an audio signal and a video signal, a distributor that distributes the output signal of this synthesizer into a number of television broadcast waves, a modulator that modulates each of the distributed signals to the frequency of the broadcast wave, A broadcasting section consisting of a synthesizer that synthesizes these modulated signals, an amplifier that amplifies the output signal of this synthesizer, and a power supply, two VTRs installed for each of the multiple pay channels, and these two VTRs are operated alternately. V to control operation
A TR controller, a plurality of modulators that modulate the signal from the VTR to a frequency for each pay channel different from that of general television broadcast waves, a synthesizer that synthesizes the output signals of these modulators, and selects the output signal of this synthesizer. A computer (B) that sequentially controls a pay television broadcasting section consisting of a filter that controls a plurality of reception control sections installed on the terminal side, and further processes various data from the reception control section; A modulator/demodulator (MODEM (B)) that modulates signals to the terminal side and demodulates various modulated data signals from the terminal side and sends them to the computer (B), a display section, and the computer (B). - a central control unit consisting of a simultaneous broadcast unit that controls the simultaneous broadcast unit;
a host computer that is connected to the central control unit, processes various data from the terminals, and instructs the computer (B) to control; a switch (S□) that switches between normal broadcasting and signals from the simultaneous broadcasting unit; , the computer (B) detects a signal with direct current superimposed on the output signal of the amplifier (C) via the broadcasting power source, and switches the switch (Sl). a switch control detector for switching control; a branching device (4) for coupling the signal from the switch (S) and the signal from the pay television broadcasting section to the television common listening line; A brancher (B) that branches to the reception control section, an amplifier that compensates for the signal level reduction caused by the brancher (B) and losses in the transmission system, and a multi-signal ( A bidirectional filter that separates the (i) signal from the terminal to the center and the lower multi-signal (signal from the TV common line to the terminal side), and a branch that connects to the output of this filter and couples the signal to each terminal. device C), two switches S, S3 for switching between pay TV broadcasting and regular TV broadcasting, a converter for converting the frequency of pay TV broadcast waves, a TV receiver, and a signal for wheel tree control from the central control unit is separated. A modulator/demodulator (MODEM) modulates the signal sent from the computer (A) to the central control unit.
(A) ), a switch board for turning on and off the power of the television receiver, selecting normal TV broadcasting or pay TV broadcasting, and tuning pay TV broadcasting; a switch S that receives an operation status signal from this switch board; ,,8. and controlling the converter, sending a signal of the operating state to the central control unit via the MODEM (4), and receiving a control signal from the central control unit via the MODEM (4), the switch S8°S, l converter;
A broadcasting device using a television common listening line, which is composed of a reception control section consisting of a computer (4) that controls a television receiver.