JP2007135168A - Sound receiving system using tv - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound receiving system using TV wherein the initial introduction facility cost is suppressed and free channels of existing TV are particularly utilized. <P>SOLUTION: A facility wherein a plurality of the television receivers are individually installed, includes decoders such as tuners and modulators for receiving satellite broadcast and wired broadcast programs, received signals are demodulated and demodulated signals are modulated into signals with TV bands, a H. E. (head end) mixes the TV signals and inputs the resulting TV signal to each of the TV, and users hear input sound via each TV. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an audio receiving system using an existing TV.

Conventionally, when a wired broadcast in which a single station simultaneously broadcasts a large number of music is distributed to a plurality of people and played as BGM, for example, the following devices are installed in a game hall.
Receiver that receives cable broadcasting and outputs multiple music audio signals, multiple transmission circuits that convert audio signals to transmission signals with different carrier frequencies, and transmission signals mixed to transmit as weak radio waves A transmission device comprising a mixing circuit that mixes the received signal and a receiving circuit, and frequency data for receiving a plurality of transmission signals, respectively, and the frequency data is set in the reception circuit and a plurality of transmission signals The receiver is configured to selectively receive the signal.

  Then, the broadcast signal of the cable broadcast is supplied to the receiver through the signal cable, and among the music that has been sent, a plurality of music is selectively and demodulated, and the audio signal is supplied to the transmission circuit to be equivalent to the broadcast signal. To FM signal. Then, the FM signal is supplied to the mixing circuit to be a mixed signal, which is supplied to the leakage cable through the amplifier and the coaxial cable, and any music can be listened to by the FM receiver.

In the case of satellite broadcasting, the configuration is as follows.
Signals transmitted from satellite broadcasting are converted from digital audio signals to analog signals through the decoder output signal from the tuner, and the frequency band of the satellite broadcasting signal is converted to the frequency band of an empty channel of a normal TV system. After that, the configuration is such that it is modulated by a TV modulator and sent to the transmission path of the TV system, and the audio signal sent to the transmission path can be received by the TV video device.

  However, when using conventional cable broadcasting and distributing it to a plurality of people at the same time and sending it as BGM, there is a problem in that it costs initial installation equipment costs in indoor wiring work such as a coaxial cable and a leakage cable.

  In addition, when distributing to a plurality of people using satellite broadcasting, it is necessary to individually install a plurality of devices such as a tuner and a decoder, and there is a problem in that the initial installation equipment cost is similarly required.

  An object of the present invention is to solve the conventional problems, and to suppress an initial installation equipment cost, and in particular to provide an audio reception system using a TV that uses an empty channel of an existing TV.

  The present invention is an audio receiving system using a TV, and in a facility where a plurality of TVs are individually installed, a signal such as a tuner that receives satellite broadcasts and a modulator and a modulator are provided to demodulate and demodulate the received signal. Is modulated to the TV band, or a regenerator such as the Internet is provided to modulate the reproduced signal to the TV band with the modulator, and the TV signal is mixed with H and E, and the input sound is input to each TV. It is characterized by listening through each TV.

  Further, the present invention is characterized in that a black burst signal generator is provided in the modulator, and the sound inputted in a state where the black burst signal is generated, modulated into the video portion and outputted to the screen is heard through each TV. And

Effect of the invention

  The present invention is a system that uses a plurality of individually installed TVs such as a hospital, a hotel, or a condominium.

First, a decoder and a modulator such as a tuner that receives satellite broadcasting and cable broadcasting (arbitrary multiple CHs) are installed in one place (community work) using the present invention. The signal received by a decoder such as a tuner is demodulated, and the signal demodulated by the modulator is modulated to a TV band (existing 1 TV free CH).
Then, the TV signals are mixed through H and E, input to the TVs in the individual rooms, and the input sound is heard through each TV.

  Note that the sound source is not limited to the reception of the satellite broadcast and the cable broadcast, but a regenerator and a modulator such as the Internet are installed, and a signal reproduced by the regenerator is modulated into a TV band, and H · E The TV signals are mixed via the TV and input to the TV in each private room, and the input sound is heard via each TV.

  By connecting a single black burst signal generator to the above multiple modulators, when listening to the sound via each TV, a black burst signal is generated, modulated into the video part, and output in synchronization with the screen. The input sound can be heard via each TV.

  The black burst signal generator is not limited to the configuration in which the black burst signal generator is connected separately from the modulator as described above, and can be configured integrally with the modulator.

The invention's effect

  According to the present invention, there is an advantage that the initial introduction equipment cost can be reduced as compared with a system in which a dedicated tuner or the like is individually installed.

  In particular, in order to use each of the current TVs, the installation work is only the hearing work, and a smooth system can be introduced.

  Furthermore, since a black burst signal can be generated and output to the video portion to listen to the sound via each TV, the sound can be heard in a mentally stable state.

  An embodiment of an audio receiving system using a TV according to the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic circuit diagram showing an embodiment of an audio receiving system using a TV of the present invention.

As a facility where a plurality of TVs 10 are individually installed, for example, a hospital is presented as an example. In hospitals, a TV 10 is installed for each bed in a hospital room so that patients can freely watch TV.
Each TV is connected to a TV terminal of a transmission line connected to the BS / CS antenna 11.

  The voice receiving system 1 using the TV of the present invention is installed at one place (cooperative work) of the hospital facility in order to use the existing TV. For this reason, the installation work is limited to the center portion, and it is not necessary to install a tuner in each hospital room, distribution from a TV terminal, installation of wiring and the like.

  The configuration of the audio reception system 1 using a TV includes a tuner 3 connected to an antenna 2 for receiving satellite broadcasting and cable broadcasting, and a demodulated and demodulated signal in a TV band (existing 1 TV free CH). Modulator 4 to be modulated, mixer 5 for mixing the modulated TV signal, and the TV signal mixed by the mixer 5 is mixed with an existing TV signal and sent to an existing TV transmission path. It consists of and. Note that the number of tuners 3 and modulators 4 is required according to an arbitrary channel to be received.

  The plurality of modulators 4 are provided with black burst signal generators 8 connected to each other via a splitter 7 for generating signals necessary for a TV monitor. The black burst signal is a black signal as a video signal, that is, a black signal that does not appear on the TV screen when an image is reproduced, and is generated as a burst wave for synchronous pulling. Various selections such as a cross line are possible.

As an example of using the voice receiving system 1 using the TV of the present invention, a hospital facility in which 100 TVs 10 are individually installed with 100 floors and 10CH is arbitrarily selected is presented.
Each TV 10 is connected to a TV terminal of a transmission path 12 connected to the BS / CS antenna 11.

The sound receiving system 1 using the TV of the present invention is provided on the transmission line 12 as a common event.
In other words, 10 modulators 4 and 10 tuners 3 are connected to a booster (amplifier) 9 and a mixer 5 to H · E 6 that mixes TV signals provided on the transmission line 12.
The ten modulators 4 are connected to four, four, and two via three splitters 7 (output signal distributors) connected to the black burst signal generator 8. The tuner 3 is connected to an antenna 2 that receives satellite broadcasting and cable broadcasting.

  In this way, since installation 1 can be installed only in the center as a hearing work, it is not necessary to install a tuner in each hospital room, distribution from a TV terminal, installation of wiring, etc. It can be reduced.

  Next, the patient who uses the bed can set the designated TVCH, and can select the desired CH from any received 10CH and listen to the audio anytime for 24 hours. In addition, since the TV screen generates a black signal that does not appear on the TV screen as a burst wave for synchronous pull-in, the patient can listen only to the voice without worrying about the TV screen.

  Note that the audio reception system 1 using the TV of the present invention cannot receive a modulated signal of an analog signal when the TV reception tuner is a digital reception type, and may be a TV reception tuner of both digital and analog signals. For example, terrestrial digital of 2012 TV signals can be supported.

  Further, in the audio receiving system 1 using the TV of the present invention, when listening, a black burst signal generator 8 is provided for generating a black burst signal, modulating it to a video portion and outputting it to the screen. It is not essential to provide the black burst signal generator 8 in FIG.

  In the above embodiment, as an example of using the audio receiving system 1 using a TV, a case where 100 TVs 10 are individually installed and 10CH is arbitrarily selected was presented. However, the TV of the present invention was used. In the use of the voice receiving system 1, the number of TVs 10 and the number of CHs are not limited to the above numbers, and the number can be arbitrarily set as long as it is a plurality of units and a plurality of CHs.

  Further, in the above embodiment, the voice receiving system 1 using the TV of the present invention is used in a hospital facility, but the voice reception using the TV of the present invention is also used in a hotel or apartment as a facility where the TV 10 is individually installed. System 1 can be used.

  In the above embodiment, the black burst signal generator 8 for generating the black burst signal is connected to the modulator 4. However, the modulator 4 includes the black burst signal generator 8 and is integrated with the modulator 4. By doing so, it is possible to simplify the entire system.

  Further, in the above embodiment, the tuner 3 connected to the antenna 2 for receiving satellite broadcasting and cable broadcasting as the sound source means, the modulator 4 for demodulating the received signal and modulating the demodulated signal to the TV band, and the modulation The TV 5 mixed by the mixer 5 and the H / E 6 that mixes the TV signal mixed by the mixer 5 with the existing TV signal and sends it to the existing TV transmission path. The means is not limited to this, for example, a regenerator such as the Internet, CD or MD is provided, the regenerated signal is modulated to the TV band by the modulator, and the TV signal is mixed by H · E, It can also be configured to input to each TV.

It is a schematic circuit diagram which shows one Example of the audio | voice reception system using TV of this invention.

Explanation of symbols

  1-TV audio reception system 1

Claims (2)

In a facility where multiple TVs are individually installed, a decoder such as a tuner that receives satellite broadcasts and a modulator is provided to demodulate the received signal and modulate the demodulated signal into a TV band, or playback over the Internet, etc. The TV is characterized in that the reproduced signal is modulated to the TV band by the modulator, the TV signal is mixed by H and E, and the input sound is input to each TV and the input sound is heard through each TV. Voice reception system using The TV according to claim 1, wherein a black burst signal generator is provided in the modulator, and a sound is input through each TV in a state where the black burst signal is generated, modulated into a video portion and output to a screen. Had a voice receiving system.

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