KR930002774B1 - Two-directional broadcasting signal monitering system - Google Patents

Abstract

The apparatus is for quick communication and measurement to maintain the quality of multichannel broadcasting cable. It includes a switching box (1) for selecting one receiving wire among multiple wires, another switching box (2) for selecting one transmitting wire, a control logic (4) for controlling the switching box (2), and a uni/bidirection changing switch (18) for selecting the path for communication.

Description

Bidirectional Broadcast Switching Device

1 is a block diagram of a bidirectional broadcast switching device of the present invention.

2 is a, b is a block diagram of the front and rear panel of the present invention device.

* Explanation of symbols for main parts of the drawings

1,2: switching box 3,4: control logic

5, 5 ': Direction change relay (Ry) contact point 6: Receive signal level indicator

7: Signal level indicator 8: Signal receiver jack

9: Measurement jack for transmitting signal 10: Headphone set

11: microphone amplifier 12: direction switch

13: microphone and headphone jack 14, 15: variable resistor

16: CUE indicator 17: Ground terminal

18: single direction and two way switch

19: External tally connector for lower switch latch

20: Receive Audio Multijack 21: U-Link

22: external release jack for the upper switch latch 23: power switch

24: Fuse R1-R24: Receive channel switch

S1-S24: Transmit side channel switch U1-U6: Amplifier

The present invention relates to a bidirectional broadcast switching device.

In addition, the present invention maintains a high-quality broadcasting network for commentary distribution broadcasting lines composed of a number of stadiums, studios in broadcasting centers and broadcasting centers of various countries, such as large-scale broadcasting and international Olympic broadcasting, and operates the opening and characteristic tests of the broadcasting system. Announcer for maximizing the number of times, and commentator broadcast system (Commentary System) relates to a device that allows measurement.

Therefore, in the present invention, in the distribution of narration signals, three places between the broadcast field relay seat announcer and the narrator, the studio in the broadcasting center, and each broadcasting company's home country can use simultaneous communication, and by measuring the two-way audio characteristics quickly and accurately, In order to reduce the speed, it is possible to accurately detect the progress instruction during the broadcast and establish the reference point of the complex two-way broadcasting network system, so that the three-way broadcasting call can be used for the management of the rotating network and maintaining the control and the quality control of the channel. And to make measurements.

In addition, the present invention is advantageous in space utilization by compactizing large performance equipment or consoles, reducing the manpower of operation as well as easy to operate as a small assistive device, by detecting the level of the broadcast in relative decibels and switching of broadcast programs and TV and radio In the main control room, it is possible to safely detect the transmission progress, such as a number of studio outputs and links with the transmitting station, without dangerous patching.

In order to achieve the object of the present invention as described above, the line measurement and frequency characteristics, the signal-to-noise ratio, the distortion ratio, linearity, etc., and to separate the switch string to the upper and lower ends to be used as a stereo switch, and also used as an auxiliary console Tally function connected to the main console is used to prevent accidents during operation, and the original function is restored to prevent errors in progress, and the sound quality and configuration errors at the same time with the three media stations It was to check and take action promptly, and to be able to monitor the voice level and explain the function by direction.

Therefore, in the bidirectional (transmit or receive) function, one signal selected in the switching group is distributed to three amplifiers with high impedance while simultaneously detecting and measuring the level with the light emitting diodes. By reducing the frequency of use of the measuring equipment, and by switching in both directions in the state of switching, it is possible to quickly check and measure the quality and configuration of sound at the same time as the 3-station. It checks whether the level is set to both parties, adjusts the volume (level) transmitted from the other station by switching the bidirectional configuration, and sets the relative decibel to monitor the operating level.

Characterized in the present invention as described above is separated into the upper switch string and the lower switch string, the internal transmission amplifier portion to have the same function as the receiving amplifier portion, the upper and lower switch strings each 24 functions as 48 channel switches In addition, the use of the upper and lower switch strings are used as an auxiliary console when using, but it is not possible to select the ongoing broadcast line, TALLY is characterized in that to reset the source at any time in one or two directions.

BEST MODE Hereinafter, the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a block diagram for explaining the present invention. The receiver REC and SEND are respectively provided at an input of a switching box 1, 2 of an audio contact latch of 1: 1. The four channel inputs are connected by switches described below, and the control logic (3) and (4) signals of the 24 channel inputs are connected to the switching boxes (1) and (2) of the audio contact latches. The switching box 1 of the audio contact latch of the receiver is controlled according to a channel connected to the amplifier, and the amplifier for displaying the received signal level display unit 6 through the contact unit 5 of the direction switching relay Ry. (U2) and amplifier (U1) for connecting to the signal receiver jack (8) and the left and right (L, R) headphones of the headset 10 through the amplifier (U3, U4) for the outgoing signal Connected to the microphone and headphone jack 113 to monitor incoming signals The output signal jack for input and the microphone input signal jack for sending a message are accommodated in one DIN-JACK.

The output signal of the microphone Mic is transmitted through the microphone amplifier 11 so that its output is matched with the control logic 4 signal according to the channel connected to the switching box 2 of the audio contact latch of the transmitter. The output of the microphone amplifier 11 is sent to the transmission level display section 7 by the amplifier U6, and the output of the amplifier 11 is output to the amplifier U5 to measure the message output transmission side signal. It is connected to the jack 9 for the measurement and the output side of the amplifier 11 transmits a 880 Hz sine wave by switching the TONE signal generation by the oscillator OSC to check whether there is an abnormality.

In the drawing, reference numeral 12 denotes a direction switch, and 14 denotes a volume for adjusting the headphone output level when the audio signal of the received channel is monitored by the headphones.

The circuit having the above function is installed in the apparatus shown in FIG. That is, FIG. 2A shows the front of the apparatus, and on the channel panel, the channel switches R1-R24 of the receiving audio contact latch 1 are located on the upper left side and the channel latch of the contact latch 2 of the audio transmitting side. (S1-S24) are disposed at the lower end thereof, and on the right side, the signal level display section 6, which is a reception level meter, the transmission level display section 7, which is a transmission level meter, the direction switch 12, the reception volume 14, and the transmission volume. 15 and the send and receive CUE indicator 16 are arranged.

In addition, as shown in FIG. 2B, a rear terminal of the present invention has a ground terminal 17, a unidirectional and bidirectional switching switch 18, an external tally connector 19 for a lower switch latch, and a receiving audio multijack 20. And the U-link 21, the external tally jack 22 for the upper switch latch, the power switch 23, and the fuse 24 are arranged.

Therefore, in this embodiment, when the channel to be monitored is selected among the reception channel selection switches R1-R24, it is operated by one touch, and the channel to which a message is to be transmitted is selected and transmitted from the transmission channel selection switches S1-S24. In this case, it can be operated by one touch, so that the selected channel of switching box (1) or (2) of the audio contact latch can be transmitted or received by matching the control logic (3) or (4). It appears on the indicator 6 which is a meter, and a level appears on the indicator 7 which is a transmission level meter during transmission.

The reset switch resets the already selected channel, and the receiver channel reset is located at the top and the transmission channel reset is positioned at the bottom.

In addition, the transmission and reception CUE indicator 16 is turned on by the transmission tally (TALLY) of FIG. 2 b. In the lighting state, the switch channel is not selected so that crosstalk is prevented, and the direction switch 12 transmits and receives. When the switch 12 is turned on with the switch to switch on, the relay (Ry) operates to switch the contact point, and when the switch (12) is pressed during reception, the switch is switched to transmission. You will notice that the transmit amplification parts are interchanged.

In addition, when the oscillator (OSC) switch is turned ON, a 880 Hz sine wave can be oscillated to detect the normal transmission of the device.

On the other hand, the relative decibel (dB) value can be read by fixing Cal reception and transmission level and the deviation between the indicators (6) and (7), and the receiving volume 14 receives the audio signal of the received channel through the headphone ( 10) You can adjust the headphone output level when monitoring.

In addition, the transmission volume 15 adjusts the level of the microphone (Mic) when transmitting a message, and can be measured by connecting a measuring device to the receiving signal measuring jack 8 and the transmitting signal measuring jack 9, respectively.

Single-way and bi-directional switch 18 is prepared to be used as an auxiliary device, a multi-channel, a monitoring device for the production of stereo-program, so that the transmission function is stopped and only the reception function is prepared in dual. The external tally jack 19 is a terminal that is restrained by a micro switch or a signal, and when the CUE signal is received, the selected switch sequence does not switch to another source.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, in which the present invention is provided between the announcer and the commentator who are the on-site relay seats and the studio in the broadcast center.

In other words, the announcer and the narrator (significant seat) are used as signal sources, and the apparatus of the present invention is used to measure audio characteristics, detect instructions in progress, and make calls between the studio and the attendant seat.

First, as a prerequisite, the present invention occupies two lines of four lines for the transmission / reception in the present invention between the relay seat and the studio in a correspondence relationship of one seat: one studio.

That is, one channel for reception, one channel for transmission, and two channels in total are assigned to one relay seat. Thus, in the present invention, the switching box (1) 2 that selects 24 channels has 12 relays × 2 channels. With 24 channels, you can select one of the twelve basestones (announcer + narrator) and monitor (via headphones) the signal transmitted from the selected basestone to the studio, display and measure its level, and also It also sends a message to the selected barite through the.

Or exchange messages with the studio.

1. Monitoring, level display and measurement of signals transmitted from the studio to the stand.

Turn on the channel selector switch (eg R1, R2) that selects the middle stone to monitor among the reception channel selector switches (R1-R24) that select the receiving channel. In conjunction with this selection switch, the control logic 3 switches and controls the switching box 1, where the switching box 1 turns on only the channel which is the first relay seat communication line of the 24 receiving channels. Therefore, the channel signal of the selected barite stone is supplied to the reception signal level indicator 6 through the switching box 1-link (U-LINE), the relay contact section 5, and the amplifier U2, and the reception level is displayed. It is also supplied to the receiving side signal measuring jack 8 through the amplifier U1, and the measurement equipment is connected to the jack 8 so that the overall measurement of the received signal can be made. In addition, the signal of the selected channel is transferred to the headset 10 through a switching box 1, a link U-LINE, a relay contact 5 5 '5', an amplifier U3, a microphone and a headphone jack 13. Is monitored (monitored).

2. Indication and measurement of message transmission and transmission level from switching device to relay seat:

Turn on the channel selection switches (e.g., S1 and S2) for selecting the relay seat to communicate with among the transmission channel selection switches S1-S24 for selecting the transmission side channel. In conjunction with this selection switch, the control logic 4 switches and controls the switching box 2, where the switching box 2 turns on only the channel which is the communication line of the first middle seat among the 24 transmission channels. When the direction switch 12 is turned on, the relay Ry operates to switch the switch to a state in which the normally closed contact of the contact parts 5 and 5 'is opened and the open contact is closed. Switch to "Send".

That is, the voice message input through the microphone (MIC) of the headset 10, the microphone and headphone jack 13, the amplifier 11, the unidirectional and two-way switch 18, the amplifier (U5), the relay contact portion 5 ', uni-directional and bi-directional switch 18', link (U-LINE), switching box 2 is transmitted to the relay seat side. In addition, the transmission message is also supplied to the signal measuring jack 9 of the transmission side through the same path as described above, that is, the amplifier 11 unidirectional and bidirectional switching switch 18, and by connecting the measuring equipment to the jack 9, the transmission signal is transmitted. Various measurements can be made for.

The transmission message is also supplied to the transmission signal level indicator 7 via the amplifier U6 via the path as described above, that is, from the amplifier 11 via the relax contact 5 ', and thus the transmission level. Is displayed.

On the other hand, when the tone signal switch SW1 is turned on together with the transmission message, the 880 Hz sine wave generated from the tone signal generating oscillator (OSC) is intervened and transmitted in the same path as above, so that the signal source of the selected channel is in the (source). You can also send a test-tone to confirm the level setting for both.

3. Single direction (receive) operation

When the unidirectional and bidirectional switching switch 18 is turned on, the closed contact is opened, and the open contact is closed, and the switch is made. In this case, the transmission function is stopped and only the reception function is dual (left / right channel ( Stereo)) to be used as auxiliary equipment for stereo program production or as multi-channel monitoring equipment.

That is, even in this case, the channel to be monitored is selected in the same operation as above to secure the receiving line. In this case, since only the reception is performed, all 24 channels are corresponded to the signal sources as 1: 1 so that the 24 channels Stereo monitoring, signal measurement and level indication can be made.

For example, when a specific channel is selected by operating the reception channel switches R1-R24, the broadcast signal of the channel selected by the switching box 1 is controlled by the control logic 3 corresponding to the relay contact section 5 ( 5 '), the unidirectional and bidirectional switching switch 18, and the amplifier (U3) (U4) through the broadcast signal of the left and right stereo channels are supplied to the microphone and headphone jack 13 to stereo to the headset (10) Monitoring of the program takes place.

Of course, even in this case, it is possible to transmit the message through the same transmission path, and to display the transmission / reception signal and measure its level. In this case, the measurement jacks 8 and 9 measure the reception levels of the stereo left and right channels, respectively, and the level indicators 6 and 7 display the reception levels of the stereo left and right channels, respectively.

4. Level adjustment at transmission / reception

Adjusting the variable resistors VR1 and VR4 controls the gain of the amplifiers U2 and U6 so that the level of the received signal and the level of the transmitted signal displayed by the level indicators 6 and 7 are adjusted. Adjusting the variable resistors VR2 and VR3 controls the gain of the amplifiers U1 and U5 so that the level of the signal to be measured is measured through the measuring jacks 8 and 9. Adjusting the variable resistors 14 and 15 controls the gain of the amplifiers U4 and U3 so that the signal level, ie, the volume, monitored by the headset 10 through the jack 13 is adjusted. When the variable resistor VR5 is adjusted, the gain of the amplifier 11 is controlled, so that the signal level of the transmission message is adjusted.

Therefore, according to the present invention, the broadcast field broadcaster and the commentator, the studio in the broadcasting center, and the three stations between the home countries of each broadcasting station can simultaneously communicate, and the bidirectional (transmit and receive) audio characteristics can be measured quickly and accurately. It not only shortens the time, but also detects and passes the instructions in progress during the broadcast, and establishes the reference point of the complex two-way broadcasting system to maintain the network network and maintain the control. Measurement is possible.

Claims (6)

A switching box 1 for selecting a reception line of a signal transmitted from any one of a plurality of broadcast signal sources each occupying a plurality of communication lines (channels), and controlling the switching box 1 A control box 3 for selecting a new line and a switching box 2 for selecting a transmission line of a voice message transmitted to any one of a plurality of broadcast signal sources each occupying a plurality of communication lines (channels) And a control logic 4 for controlling the switching box 2 to select one transmission line, and a relay for selecting the transmission path through the switching box 2 or the reception through the switching box 1. Ry), its contact portion 5 (5 ') and direction switch 12, a microphone and headphone jack 13 for monitoring output of a received signal and input of a transmission message, and the microphone and headphone jack 13 ) To monitor and negative A single direction for selecting a bi-directional or a reception-only path that parallelizes the transmission / reception on the headphone set 10 which performs message input, and the signal input path to the microphone and the headphone jack 13 and the signal output path therefrom; A bidirectional broadcast switching device comprising a bidirectional changeover switch (18). The reception signal level indicator (6) according to claim 1, wherein the reception signal level is displayed in bidirectional transmission, the stereo left channel level in unidirectional reception, and the transmission signal level in bidirectional transmission. And a transmission signal level indicator (7) in which the level of the stereo right channel is displayed during unidirectional reception. 3. The receiving signal measuring jack 8 for measuring the level of a received signal in bidirectional transmission and a signal for measuring the level of a stereo left channel in unidirectional reception and a transmission signal in bidirectional transmission. And a transmission side signal measuring jack (9) for outputting a signal for measuring the level of the stereo right channel when measuring the level of the signal and in the unidirectional reception. The apparatus of claim 1, further comprising an oscillator (OSC) and a switch (SW1) for transmitting a test tone to a broadcast signal source through the voice message transmission path through the microphone and the headphone jack. . 4. The amplifier according to claim 3, wherein the amplifiers U2 and U6 amplify the signals supplied to the level indicators 6 and 7, and the amplifiers amplifying the signals supplied to the signal measuring jacks 8 and 9. U1), U5, an amplifier U3 and U4 for amplifying signals supplied to the microphone and headphone jack 13, and an amplifier for amplifying a voice message signal input to the microphone and headphone jack 13; Bidirectional broadcast switching device comprising 11). The variable resistor of claim 5, wherein the gains of the amplifiers U2, U6, U1, U5, U3, U4, and 11 are adjusted to adjust the display level. A bidirectional broadcast switching device including VR1, VR4, VR2, VR3, 15, 14, and VR5.

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