JP3760685B2 - AV system - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention relates to the AV system.
[0002]
[Prior art]
Conventionally, in an AV system such as a karaoke box, a so-called centralized management type in which karaoke equipment installed in a central management room in a store is shared with each room (hereinafter referred to as a box) in the store via a network line. Karaoke system is known.
In general, this kind of karaoke system has a predetermined number of LD (laser disc) playback devices and LD changers installed in a central control room, while each box has only a reservation machine and AV output equipment (sound system, display, etc.). In the central management room, the music is played in response to a request from each box, and the AV (audio / video) signal is supplied to each box.
In such a centralized karaoke system, there is no need to install a karaoke facility for each box, so there is no need to provide a space for installing a karaoke facility in the box, and the space in the store can be used efficiently. There is an advantage.
[0003]
[Problems to be solved by the invention]
By the way, in the centralized management karaoke system described above, when an attempt is made to expand the system by adding a karaoke device such as an LD playback device, it is necessary to match the interface with the AV output device in the box with the existing device. As a result, the number of devices that can be expanded is often limited to the same model as the existing one.
On the other hand, the progress of karaoke equipment in recent years is rapid, and new products are being provided one after another by each manufacturer. We would like to introduce this if it is a product with higher functionality regardless of the manufacturer and model while keeping the existing equipment. Many users think that.
However, the conventional centralized karaoke system, as mentioned above, is extremely limited in the number of models that can be added from the viewpoint of compatibility with existing facilities. There was a problem that this could not be introduced.
[0004]
The present invention has been made under such a background, and in a centralized management system configuration, it is possible to mix different types of AV devices without making the operator aware of the difference between the models, thereby expanding the system. The purpose is to provide an AV system with excellent performance.
[0006]
[Means for Solving the Problems]
In order to solve the above-described problem, an invention according to claim 1 is an AV system comprising a control device, a plurality of AV signal generation devices, and a plurality of terminal devices connected to these devices via a network line. each terminal device includes a reservation unit, and an AV output unit, reservation means transmitting, when the common code specifying a song is input, and the common code, the control unit the identification number of the terminal device and, AV output section, move the reception frequency corresponding to the channel number received from the control device, and play demodulates audio and video signals are received from the a V signal generating device, the control device When receiving the common code and the identification number from the terminal device is not being reproduced, the common code to select one of the AV signal generation apparatus corresponding, AV signal generation instrumentation selected common code received Transmits a channel number corresponding to the AV signal generation apparatus selected and transmitted to the terminal device, A V signal generator receives the common code from the control device, specific common codes received objective model It converted into machine-dependent code, such code system, wherein the benzalkonium be transmitted the machine-dependent code to play Ruoto sound and video signals to corresponding modulated to.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
A: Configuration of Embodiment FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In the figure, reference numeral 1 denotes a control device installed in a central management room in the karaoke box store. The control device 1 is composed of a personal computer, a hard disk, and the like, and controls each part of the system in a centralized management room to be described later. The control device 1 is connected to a host computer (not shown) and can receive karaoke song data from the host computer. The received song data is supplied to a sound source type karaoke apparatus, which will be described later, and stored in the apparatus.
[0016]
In the central management room, there are three types of karaoke equipment groups of different models. That is, the first karaoke device group includes three sound source type karaoke devices 21 to 23 of the same model, the second karaoke device group includes two LD type karaoke devices 31 and 32 of the same model, The karaoke apparatus group includes two LD karaoke apparatuses 41 and 42 of the same model different from the apparatuses 31 and 32 described above. These karaoke device groups are connected to the control device 1 via a common bidirectional bus BUS1.
[0017]
On the other hand, each box BX1, BX2,... In the store is provided with a karaoke terminal KT connected to the control device 1 of the central control room and the karaoke device group via the network line N in the store. The karaoke terminal KT is configured to receive sound and sound based on an AV (audio / video) signal supplied from a reservation machine (remote controller) 11 for an operator to input a song number and input various performance controls and a karaoke apparatus in a central control room. It comprises an AV output device (comprising a sound system, a display, etc.) 12 that outputs background video, and an RF interface 13 that inputs and outputs signals to and from the network line N.
[0018]
In this way, each box BX1, BX2,... In the store is equipped with only equipment for reserving songs and outputting AV, and all other karaoke equipment is installed in the central control room. System configuration.
[0019]
In addition, since each karaoke apparatus group has a different model, a song number is designated based on a different code system, and a corresponding song is reproduced. Therefore, in order to convert the song number designated under the common code system as seen from the karaoke terminal KT side into the song number based on the code system peculiar to the model of each karaoke apparatus group, The following code conversion mechanism is inserted between the bus BUS1.
[0020]
That is, the code conversion processing units 121 to 123 are provided between the first karaoke device groups 21 to 23 and the bus BUS1, and the code conversion processing unit 131 is provided between the second karaoke device groups 31 and 32 and the bus BUS1. , 132 are inserted between the third karaoke device groups 41, 42 and the bus BUS1, respectively, with code conversion processing units 141, 142 interposed therebetween. Each of these code conversion processing unit, and the stored conversion table for conversion to the specific coding scheme to the model of each common code system.
[0021]
Here, the song number input based on the common code system in the karaoke terminal KT is in a format such as “xxxx-yy”, for example, and the range of the song number to be reproduced by each karaoke device group is determined by assignment. It has been. In other words, the first karaoke device group 21 to 23 reproduces a song corresponding to the song number of “0000-00 to 1000-00”, and the second karaoke device group 31 and 32 receives “1000-01 to 8000”. The song corresponding to the song number “-00” is reproduced, and the third karaoke device groups 41 and 42 reproduce the song corresponding to the song number “8000-01 to 9999-99”. In the code conversion processing unit corresponding to each karaoke device group, information on the range of song numbers assigned to each karaoke device group is stored together with the conversion table.
[0022]
In addition, in order to modulate the AV output of each karaoke device group with a carrier having a frequency specified by the control device 1, RF modulators 221 to 223 are connected to the second karaoke devices at the output ends of the first karaoke device groups 21 to 23. RF modulators 231 and 232 are connected to output terminals of the device groups 31 and 32, and RF modulators 241 and 242 are connected to output terminals of the third karaoke device groups 41 and 42, respectively. The output signals of these RF modulators are sent to the network line N via a common AV output bus BUS2.
[0023]
Further, an RF modulator 51 and an RF demodulator 52 are inserted between the control device 1 and the network line N. The RF modulator 51 transmits a downlink signal output from the control device 1 with a carrier having a predetermined frequency. The RF demodulator 52 demodulates an uplink signal having a predetermined frequency input from the network line N and outputs it to the control device 1.
[0024]
Here, as shown in FIG. 2, the network line N is divided into a plurality of channels depending on the frequency band, and is a channel for uplink signals transmitted from the karaoke terminal KT to the control device 1, and from the control device 1 to the karaoke terminal. A downlink signal channel transmitted to the KT and a plurality of channels for AV output of each karaoke device group are set.
[0025]
B: Operation of Embodiment Next, the operation of the embodiment having the above configuration will be described.
(1) Playback by the first karaoke device group First, for example, when a song number “0900-11” is input from the reservation machine 11 of the box BX2, a request signal in which the node number NODE # of the box BX2 is added to this song number. Req # is sent to the network line N via the RF interface 13. This request signal Req # is taken into the control device 1 via the RF demodulator 52 in the central management room. Thereby, the control device 1 sends the music number “0900-11” included in the request signal Req # to the bus BUS1.
[0026]
Here, the song number “0900-11” is a number that designates a song to be played back by the first karaoke device group 21 to 23, and thus is not in use in any of the first karaoke device group (that is, It is taken into the code conversion processing unit corresponding to the karaoke device (not playing a song related to another request). For example, assuming that the karaoke device 21 is not in use, the song number “0900-11” is input to the code conversion processing unit 121 and converted into a song number corresponding to the code system specific to the model of the first karaoke device group. Is done. At this time, the code conversion processing unit 21 returns a reception confirmation signal ACK including the device number indicating the first karaoke device group and the identification number indicating the karaoke device 21 therein to the control device 1.
[0027]
Then, the converted music number is input to the karaoke device 21, and performance information (including lyrics information) and background video information corresponding to the number are sequentially read from a storage medium such as a hard disk (not shown). As a result, an audio signal corresponding to the performance information is synthesized by a sound source (not shown), and a video signal corresponding to the background video information and the lyrics information is synthesized by an image synthesizing unit (not shown). It is output to the RF modulator 221.
[0028]
On the other hand, based on the reception confirmation signal ACK, the control device 1 identifies the karaoke device 21 that is playing the song, and designates the output channel (ie, modulation frequency) of the AV signal to the corresponding RF modulator 221. At the same time, the channel number CH # indicating this channel is added to the node number NODE # of the box BX2 and transmitted to the network line N.
[0029]
Thus, the RF modulator 221 modulates the AV signal with the frequency of the channel designated by the control device 1 and sends it to the network line N via the bus BUS2, while the RF interface 13 of the box BX2 The reception frequency is adjusted to the frequency corresponding to the channel number CH # to be transmitted, and the AV signal transmitted from the RF modulator 221 is received / demodulated. By Rukoto The AV signal is supplied to the AV output device 12, it is playing songs that correspond to the requested song number "0900-11", the background image is displayed.
[0030]
(2) Playback by the second karaoke device group Also, for example, when the song number “1800-21” is input from the reservation machine 11 of the box BX2, this song number “1800-21” is the second karaoke device group. Since 31 and 32 are numbers for designating music to be reproduced, they are taken into the code conversion processing unit corresponding to any one of the second karaoke apparatuses. For example, if the karaoke device 31 is not in use, the song number “1800-21” is input to the code conversion processing unit 131 and converted into a song number corresponding to the code system specific to the model of the second karaoke device group. Is done.
[0031]
When the converted song number is input to the karaoke device 31, the LD changer selects the LD storing the song corresponding to the song number, and the LD playback device reproduces the AV signal of the song. .
[0032]
On the other hand, similarly to the above, the control device 1 identifies the karaoke device 31 that is reproducing the song based on the reception confirmation signal ACK supplied from the code conversion processing unit 31, and sends it to the corresponding RF modulator 231. The output channel of the AV signal is designated, and the channel number CH # is added to the node number NODE # of the box BX2 and transmitted to the network line N.
[0033]
Thus, the RF modulator 231 sends the AV signal to the channel (frequency) of the network line N designated by the control device 1, while the RF interface 13 of the box BX2 adjusts the reception frequency to the designated channel and outputs the AV signal. Receive. Thereby, in the box BX2, the song corresponding to the requested song number “1800-21” is played, and the background video is displayed.
[0034]
(3) Playback by the third karaoke device group Further, for example, when a song number (for example, “8100-31”) corresponding to the third karaoke device group 41, 42 is input, the third karaoke device group 41 , 42, the music is played back by any one of the karaoke apparatuses. Other operations are the same as in the case of the second karaoke device group described above, and thus description thereof is omitted.
[0035]
C: Summary of Embodiment As described above, according to the present embodiment, the song number input based on the common code system independent of the model of the karaoke apparatus is a group of different karaoke apparatuses installed in the central control room. Before being supplied to the CD, it is converted into a song number corresponding to the code system specific to each model in the code conversion processing section, so that different types of karaoke devices can be mixed without making the operator aware of the difference in the model. System can be constructed. That is, when the system is expanded, it is possible to easily add a different type of karaoke apparatus from an existing one only by providing a code conversion processing unit corresponding to the code system of the newly added karaoke apparatus.
[0036]
D: Modifications Note that the present invention is not limited to the above-described embodiment, and the following modifications are possible, for example.
(1) The number of each karaoke device group installed in the centralized management room is not limited to the above embodiment, and is arbitrary.
(2) In the above embodiment, three types of karaoke device groups are used. However, the present invention is not limited to this, and other types of karaoke devices are added, and a system is configured by more types of karaoke device groups. May be.
(3) Moreover, in the said embodiment, although the code conversion process part was provided for every karaoke apparatus, since each karaoke apparatus group is the same model, one code conversion process part about one karaoke apparatus group May be shared.
(4) Furthermore, the input format of the music number is not limited to the above embodiment, and is arbitrary.
[0037]
【The invention's effect】
As described above, according to the present invention, in the centralized AV system, only the code conversion processing unit corresponding to the code system specific to the model of the AV apparatus to be newly added is provided, which is different from the existing one. It is possible to easily increase the number of AV devices. Therefore, it is possible to construct a system in which different types of AV devices are mixed without making the operator aware of the difference between the models, and the system expandability can be improved.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.
FIG. 2 is a conceptual diagram for explaining channel division of a network line according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Control apparatus, 21-23, 31, 32, 41, 42 ... Karaoke apparatus, 11 ... Reservation machine, 12 ... AV output device, 13 ... RF interface, 121-123, 131, 132, 141, 142 ... Code conversion Processing unit, 221 to 223, 231, 232, 241, 242 ... RF modulator, 51 ... RF modulator, 52 ... RF demodulator, BUS1, BUS2 ... bus, N ... network line.

Claims (1)

In an AV system comprising a control device, a plurality of AV signal generation devices, and a plurality of terminal devices connected to these devices via a network line,
Each terminal device includes reservation means and AV output means,
Reservation means, the common code specifying a song is input, transmits the said common code, the identification number of the terminal device to the control device,
AV output unit, move the reception frequency corresponding to the channel number received from the control device, and play demodulates audio and video signals are received from the A V signal generating device,
The control device receives the common code and the identification number from the terminal device is not being reproduced, and selects one of the AV signal generation apparatus corresponding to the common code, the AV signal generation apparatus selected common code received And a channel number corresponding to the selected AV signal generation device is transmitted to the terminal device ,
A V signal generating apparatus, control receives the common code from control unit, is converted into machine-dependent code specific encoding schemes common codes received own model, Ruoto sound signal and a video to correspond to the model-dependent code that sends to play the signal modulation to
A V system.

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