JPH07298368A - Av control system - Google Patents

Abstract

PURPOSE:To control AV equipments and appreciate AV, which can be appreciated only in a living room, etc., where the AV equipments are installed before, from an optional place inside or outside a room by using a portable terminal. CONSTITUTION:Control commands controlling the AV equipments and their input and output video and audio signals are transmitted through the same bus, and all the AV equipments are connected to this bus. This bus has an optical I/F 101 which converts the lights of the bus into light signals. An optical communication is made between this optical I/F and the portable terminal. While all the AV equipments are controlled through the optical I/F 101 from the portable terminal 100, the AV equipments transfers video and audio information to the portable terminal 100 through the bus and optical I/F. The portable terminal 100 reproduces the video and audio signals and all the AV equipments are controlled at an optional position inside or outside the room by using the portable terminal, so that AV can be appreciated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an AV device control system for controlling home AV devices and transferring images,
In particular, the present invention relates to an AV device control system using a portable terminal that can be carried around at home.

[0002]

2. Description of the Related Art Current AV (Audio & Visual)
l) Control of equipment is controlled by TV (Television), V
TR (Video Tape Recorder), V
Devices such as DPs (Video Disc Players) have input and output terminals for image and audio signals, and are connected to an AV selector built in the TV or a separate AV selector. Further, there is an infrared remote controller corresponding to each AV device for controlling each AV device, and the user controls each AV device by using the remote controller. Therefore, each AV
In order to operate the device, it is necessary to select each remote controller separately and push the switch of the remote controller toward each AV device. Further, since the light receiving unit of the remote controller is installed on each AV device, the space range in which the remote controller can be used is limited.

In this regard, although not for AV equipment,
SUMMARY OF THE INVENTION An optical interface for communicating with a "handheld device (portable terminal)" is provided, for example, on a ceiling or the like, which is titled "Device for communication, information, maintenance, diagnosis, and training". A method has been proposed in which a plurality of devices are provided to communicate with a hand-held device. According to this, although the handheld device is limited to some extent, it can be used while being moved over a considerably wide range. However, the present invention relates to a production line of a factory and the like, and its configuration and purpose are different from the home AV network intended by the present invention.

[0004]

DISCLOSURE OF THE INVENTION The present invention is to improve the usability of remote control of AV equipment, and does not unilaterally transfer the control information of AV equipment from the remote control to each AV equipment. A mobile phone that sends out a control signal that controls all AV equipment in an integrated manner, and can also view images and sounds of a TV, VTR, etc. on a remote control (mobile terminal) using the same transfer route. Terminal and A
It is to provide a V equipment system.

[0005]

In order to realize the present system, each AV device transfers image, sound and control signals bidirectionally on the same line instead of the conventional unidirectional cable for video image and sound. Make the bus form possible. This bus carries out bidirectional information transmission to each device. Although the shape is a single line, the content may be serial or parallel. Further, this bus is subjected to appropriate modulation and error correction via an optical I / F and then converted into an optical communication signal such as infrared rays to communicate with a mobile terminal. The signals on the bus (wired and optical transmission) are a control signal for each AV device and a video image and audio signal transmitted from the AV device to the mobile terminal. An optical I / F that connects the mobile terminal to the bus is installed on, for example, the ceiling of each room, and the mobile terminal and the A
To be able to connect V equipment. Of course, the mobile terminal may be directly connected to the bus without going through the optical I / F.

[0006]

With the above means, the AV equipment can be connected by a single (bidirectional transmission; serial or parallel content may be used) line without connecting a plurality of lines back and forth as in the prior art. As a result, the connection of AV equipment is extremely simplified. Further, by connecting the mobile terminals on the same line through the optical I / F, the control command can be freely sent from the mobile terminal to each AV device. Further, the video image and sound on the same line can be received by the mobile terminal, and the control signal can be transmitted to the AV device without directing the remote controller to the AV device. Similarly, it is possible to watch video images and sounds using a mobile terminal at any place and in any posture.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a connection relationship between an AV device and a portable terminal according to the present invention. AV equipment T
V103, VTR1 (104), VTR2 (105),
The VDP 106, the BS tuner 107, and the CS tuner 108 are connected by a bus 102, and the bus 102 can be used to transfer video and audio signals from an arbitrary AV device to another AV device. For example, while watching the reproduced image of the VTR2 (105) on the TV 103, the received image of the BS tuner 107 is VTR1.
It is also possible to record at (104). The bus is bidirectionally connected to the mobile terminal 100 using the optical I / F 101. From the mobile terminal 100 to each AV device, power ON / OFF control, connection control commands, etc.
The signals can be multiplexed and sent to the bus 102 via the optical I / F 101. Further, the mobile terminal 100 has an image and audio output function, and it is possible to view the received image of the CS tuner 108 on the mobile terminal 100 by multiplexing the transmission of the above two images and audio signals. is there. A specific example of signals inside the bus 102 will be described later with reference to FIG.

FIG. 2 is a detailed block diagram in which the internal functions of the AV device are divided and connected centering on the bus 200. For example, the tuner built in the TV 201 is a tuner # 1 (208) and a BS # 1 (211).
In addition, the tuner built in VTR1 (202)
The tuner # 2 (209) and the BS # 2 (212) are connected as boxes having separate functions. As described with reference to FIG. 1, since the bus 200 can multiplex some image and audio signals and a control command signal, for example, the tuner # 3 (21) built in the VTR 2 (203).
It is also possible to record the received signal of 0) on the VTR1 (202). Further, the above-mentioned signal flowing inside the bus 200 is connected to the mobile terminal 216 after being subjected to appropriate error correction and modulation through the optical I / Fs 207 and 214, and the image and sound received by the tuner # 1 are transmitted. The signal is transmitted to the mobile terminal 216, and the mobile terminal 21
It is also possible to watch on 6. The bus 200 is provided with a plurality of optical I / Fs in addition to the above-mentioned AV equipment. These can be equipped with an optical I / F in another room of the home, such as a living room and a kitchen, to watch videos while preparing meals in the kitchen, or to watch news. A bath temperature control unit 205 and a telephone 206 (which includes a modem (not shown) and is appropriately modulated, encoded, and decoded) are connected to the same bus 200. The portable terminal 216, By using a dedicated mobile terminal (not shown) connected to a public telephone or the like when going out, it is possible to perform not only video timer reservation but also boiling of water to a designated temperature in the bath and control of an air conditioner (not shown).

FIG. 3 is an external view of the portable terminal 300.
13 shows how the display 311 is displayed.
FIG. 3A shows a display mode of a menu screen for controlling AV equipment, and the menu screen display and FIG.
Each time the switch 310 is pressed, the switching method of the monitor screen display of the video and audio reproduction shown in (3) is switched alternately.
The power switch of the mobile terminal itself is 309. On the menu screen, icons 301 to 3 indicating the presence of each AV device are displayed.
08 is displayed, and if the display 311 also serves as a touch panel, each AV device can be selected and controlled with a finger or a pen (not shown). For example, if the icon 302 of VTR2 is hit, V (not shown)
Control panel for controlling TR2 (PLAY, STOP, R
(Displaying EW, FF, POWER, etc.) appears, and VTR2 can be controlled on the control panel.
Also, for example, when watching a reproduced image of the VTR1 on a TV, the VTR1 icon 301 is pinched with a finger or a pen and overlapped on the TV icon 305, or the VT is displayed.
The connection relationship can be determined by an operation such as connecting a line between the R1 icon 301 and the TV icon 305. When the above-mentioned operation does not have a built-in touch panel, it is possible to perform the same operation using an externally connected cursor moving device such as a mouse (not shown). FIG. 3B shows a display state of the display 311 while watching the video image and the sound using the mobile terminal 300. At the same time that the video image is displayed on the display 311, the tuner channel display icon 312 and the volume control icon 313 are displayed on the OSD (On).
It is displayed by being combined with a video image by Screen Display). Although not described in detail here, the display circuit of the mobile terminal 300 is originally a composite signal of a video signal, and is decoded into three primary color signals of R, G, and B on the mobile terminal and then, for example, a color liquid crystal or the like is used. It drives the configured display 311. Comparing the composite signal and RGB signal, R
It is obvious that the GB signal can increase the resolution, and the characters 312 and 313 by the OSD output by the mobile terminal itself are R.
It is a GB signal. Of course, this may occur as a composite signal and be combined with the video image.

FIG. 4 shows an example of a specific signal format of the bus. Here, an example in which the bus is a serial signal is shown, but this may be, for example, a parallel signal divided into 8 bits. FIG. 4A shows a basic signal format, in which either the mobile terminal or the AV device generates the synchronization signal 401 at an interval of 1 frame of video = 1/30 seconds. This signal is, for example, a signal first generated when the power of the AV device and the mobile terminal which are all off is turned on. Therefore, the device that is first turned on first generates this synchronization signal, and thereafter, the device, the mobile terminal, or the device that is obliged to generate the synchronization signal in advance generates this synchronization signal 401 thereafter. In FIG. 4B, the communication signal 40 of the VTR 1
Shows the state that 2 has entered. Here, VTR1 asserts to the bus that it has become a standby, and at the same time, indicates that it reserves a place for exchanging signals regarding itself in the record at 1/30 second intervals. The content of the communication 402 may simply be a code indicating that the VTR 1 has entered the standby state, or may be a signal for transmitting the control protocol of the VTR 1 to the mobile terminal. Figure 4 (c)
Indicates that a communication signal 403 indicating that the VTR 2 is in standby next comes in. Since the communication 402 of VTR1 already exists, the communication 403 of VTR2 is
Reserve a place to exchange signals about yourself at the position after that. FIG. 4D shows a state in which the TV and the CS accidentally generate the communication 404 indicating that the TV and CS simultaneously stand by. This communication 404 is located after the communication of VTR1 and VTR2 has already reserved the location. However, as shown in FIG. 4 (h), each communication 408 has an error detection bit 4 such as a parity check for indicating that the communication content is not defective.
If a plurality of AV devices have communication with each other at the same time, the error detection bit is not normal, so that it can be recognized by all AV devices that this communication 404 is invalid. Then, in FIG. 4 (e), the TV sends a communication 405 prior to the CS to reserve its own communication location, and in FIG. 4 (f), the CS generates a communication 406 and reserves its own communication location. To do. These actions are
Since the time is at least 1/30 second × the number of AV devices, the user who turns on the power does not have to wait for these operation times. Then, in FIG. 4G, a transmission area for image data (digital) is secured after the communication area reserved by each AV device. Although only one is written in this figure, a plurality of image data actually pass through the bus at the same time, so a plurality of image data areas are reserved.

FIG. 5 shows an optical I / I connecting a bus and a portable terminal.
It is an example showing a specific circuit configuration of F. Figure 5
(A) is an example of a circuit for transmitting / receiving an optical transmission signal by performing modulation such as FM modulation. The signal on the bus 515 is subjected to appropriate encoding such as addition of a parity bit and coding by an error correction 504, and then the modulation 50
5. For example, F is set to a predetermined frequency.
The signal is M-modulated, and the signal causes the switching transistor 51.
The B (base) terminal 516 of No. 5 is driven in an analog manner.
An LED is connected to the E (emitter) terminal 517 of the switching transistor 515, and a resistor R1 (509) described later and a power supply voltage 502 closely related to the maximum current of the LED 500 are applied to the LED. That is, for example, the relationship of power supply voltage = maximum LED current × resistance R is established. The switching transistor 515 is driven by the signal on the bus 515.
When the base 516 of H is turned to H (ON), there is no resistance in the direction from the emitter 517 to the collector 518 of the switching transistor, and the designated maximum current flows through the LED. Here, when the signal generated by the modulation 505 has a large DC component of H, the resistance R509 is set so that the rated current ahead of the specifications of the LED 500 becomes the maximum current.
Then, the power supply voltage 502 is set, but this may be a pulsed signal depending on the modulation method. Specifically, when an LED with a rated current of 50 mA is used, the resistance R and the power supply voltage are determined so that the maximum current is about 50 mA when the base voltage is DC in the H state. However, for example, when the base voltage has a duty of 1% and becomes L in most of the region, specifically when the time when it becomes H is about several microseconds, the maximum rated current of the LED is far exceeded, and several A is exceeded. The resistance R and the power supply voltage may be determined so that the current of (1) flows. In this case, the optical signal 514 can be flown far away, but in the unlikely event that the base remains at H due to a failure, or the switching transistor 515 is damaged, the current continues to flow without resistance. If so, the LED may be damaged. The current capacity of the switching transistor also needs to be selected according to the amount of current actually flowing. LED5
An optical signal 514 that encodes the bus signal 515 generated by the signal 14 enters the photodiode 501 of the circuit of the mobile terminal on the receiving side. At this time, a counter electromotive force is generated in the photodiode 501 and is output as a voltage by the inverting amplifier configured by the operational amplifier 508. Here, the power supply voltage 503 installed upstream of the photodiode 501 is called a reverse bias and is set so that the good portion of the characteristic graph of the photodiode is used. Also, a resistor R512 and a capacitor C connected to the operational amplifier 508.
513 determines the gain and frequency characteristic of the amplifier, respectively. Photodiode 50 by operational amplifier 508
The current of 1 is converted into a voltage, passes through the demodulation circuit 506, and
The signal is demodulated from the M signal, and the error correction circuit 507 deletes and decodes parity bits and the like,
The same signal as the bus 515 on the transmission side is obtained.

FIG. 5 (b) is basically the same as FIG. 5 (a), but is characterized by the absence of a modulation circuit / demodulation circuit. Since the basic operation is the same as that in FIG. 5A, detailed description will be omitted. In this case, the optical signal flying through the space is
It is a signal that directly transfers a bit string that has not been modulated but only error correction (this is called direct transfer). In a general LAN, the same signal runs on the network line, that is, the signal on the bus 200 shown in FIG. 2 and the optical signal 215 basically transfer the same signal. In this case, if the modulation is FM, for example, it is necessary to double the frequency band with respect to the frequency required for the bit transfer rate, but since the modulation is not performed in this figure, higher speed data transfer is possible. .

FIG. 6 is a system block diagram when transmitting not only commands of AV equipment but also image data using the optical I / F. The left side is a block diagram of the mobile terminal, which basically operates under the control of the CPU 600. By touching the touch screen 603 overlapped with the monitor 610 with a finger or a pen, the user can give an instruction to the mobile terminal. Information that the touch screen is touched is sent to the CPU 600 through the I / O 604,
It is processed. The operating program and work area of the CPU are
This is performed by the memory 601 composed of ROM and RAM. C
The PU 600 analyzes the information touched by the user on the touch screen 603, converts the information into a necessary instruction code, and then executes I / O.
LED 605 is turned on via O604. Transfer to the optical I / F on the AV device side. At this time, although not shown, the error correction, modulation / demodulation shown in FIG. 5 may be performed. The controller on the AV device side that receives the optical signal from the mobile terminal,
The CPU 614, the memory 615, and the I / O as in the mobile terminal
613 is mainly configured. The optical signal transmitted by the mobile terminal is received by the sensor 611, passes through the receiving circuit described in FIG. 5 and FIG.
14 is input. The CPU 614 analyzes the input command from the mobile terminal and sends the command to each AV device 617 through a route (not shown). In the procedure for sending the image data from the AV device to the mobile terminal, the CPU 614 first sets the I / O 61.
An image and audio output command is transmitted to the designated AV device 617 via a route not shown in FIG. The image and audio data output from the AV device 617 is compressed by the encoder 616 using a predetermined protocol,
It is transmitted to the I / O 613. Here, the image and sound signals may be originally digital signals, and if they are originally analog signals, they are converted into digital signals sampled at appropriate timing by an A / D converter (not shown). I / O 613 is L according to this signal
Blink ED612. The optical signal emitted from the LED 612 is received by the sensor 606 of the mobile terminal, and this signal is transmitted to the I / O 604. The transmitted image and audio signals are decoded by a predetermined procedure through the decoder 607 and transferred to the digital memory 608. The image data in the digital memory 608 is D
It is converted into an analog signal through / A609 and can be viewed on the monitor 610 like a mobile terminal. Monitor 61
0 is the channel (CH) shown in FIG. 3 (b).
312 and a voice volume (VOL) 313 are displayed. This is when the I / O 604 is turned off by a command from the CPU 600.
The SD (On Screen Display) 602 issues a command to generate a specified character at a specified position, and the OSD 602 accordingly transmits information about the character at an appropriate timing and superimposes it on the output of the digital memory 608. Then, by collectively converting into an analog signal by the D / A 609, the combined image of the image and the character can be viewed on the monitor 610. Although not shown, the voice information is also output as analog voice from a speaker or a headphone terminal incorporated in a mobile terminal (not shown) in a similar procedure.

FIG. 6B is a diagram in which, in addition to FIG. 6A, an error correction function is added to image and audio data to be transmitted. Since the basic operation is exactly the same as that of FIG. 6A, detailed description will be omitted. Here, an error correction process is performed on the image and audio data output from the AV device. That is, the image and audio data output from the AV equipment 617 is added with necessary error correction bits, and then subjected to compression and other processing by the encoder 616 and transmitted to the mobile terminal through the I / O 613 and the LED 612. Here, the image and audio signals output from the AV equipment 617 may be originally digital signals as in the case of FIG. 6A, and if they are originally analog signals, an A / D converter (not shown) may be used. It is converted into a digital signal sampled at an appropriate timing. The mobile terminal, after decoding the received signal with the decoder 607, uses the error correction 618 to detect a data transmission failure from the error correction bit, repairs the error, and then loads the digital memory 608. Finally, the restored image is viewed on the monitor 610. Here, the sending side performs error correction after encoding, and the receiving side performs error correction after passing through the decoder. However, this may be reversed depending on the usage situation. That is, when there are many error occurrence factors in the transmission system, image and audio data are first compressed by an encoder, and then error correction bits are added and transmitted. The receiver may first detect the transfer error and recover the data by using the error correction bit, and may request the retransmission in some cases. And only after decoding the error, decode it,
To be able to load and watch digital memory.

FIG. 7 is a block diagram showing a configuration for viewing images and sounds output by AV equipment on a portable terminal as in FIG. Here, for command transfer between the mobile terminal and the AV device control, the CPU 700, 7
This is an example of a method of utilizing I / O 704 and 714 attached to 16 and directly transmitting data of image and sound to a digital memory without passing through I / O. In the figure, the left side is the mobile terminal and the right side is the AV controller as in FIG. 6, and the command transmission method from the CPU to the CPU is also the same as in FIG. 6, and therefore the description thereof is omitted here. In the embodiment of FIG. 7, the AV controller on the right side is
The switch 715 switches the original signal for turning on the LED between an instruction from the CPU and an image and audio data output from the encoder. Similarly, on the portable terminal side, the switch 705 switches between the case of an instruction from the sensor to the CPU and the case of transmitting an image and sound from the sensor to the decoder. Switching of the switches 705 and 715 is performed by the respective CPUs 700 and 716 via the I / O 704 and 714. That is, in the timing chart shown in FIG. 4G, the synchronization signal 401, the VTR1 signal 402, V
Up to TR2 signal 403, TV signal 405, and CS signal 406, the switch is tilted in the direction of I / O 704 and 714, and the LED and the sensor are connected to I / O. Then, in the portion of the image data 407 of FIG. 4G, the switch is tilted toward the encoder 718 and the decoder 708, and the image data is directly passed through the optical I / F without passing through the I / O and the digital memory 709 of the mobile terminal. Transfer to. In this method, the transmission speed of image and audio data is
In addition, high-speed data transmission is possible without being affected by the I / O capacity limit. Here, as in the case of FIG.
The encoder 71 transmits the image and audio signals from the device 719.
Optical transmission through 8 and the mobile terminal also receives the received optical communication,
Although it is transmitted to the digital memory 709 through the decoder 708, error correction may be added as shown in FIG. 6 (b), or error correction may be performed after encoding as shown in FIG. 6 (b). , May be installed before decoding.
The image and audio signals output from the AV equipment may be digital signals as in the case of FIG. 6, and if they are analog signals, they are converted to digital signals by an A / D converter (not shown). Transmitted in.

FIG. 8 is an example of a block diagram showing the configuration of the entire system of a home AV network according to the present invention. The room of a certain house is roughly divided into three rooms, and an AV device 806 is installed in a living room 809. A network line 801 is wired from here to another room (kitchen 808, bathroom 810), and an optical I / F 802 is installed in the kitchen and an optical I / F 80 is installed in the living room.
5 are installed. The mobile terminals 804 and 805 can operate wirelessly in the kitchen and the living room. Particularly, from the kitchen 808, the AV equipment installed in the living room 809 is controlled by using the mobile terminal. Image and audio output devices (VTR, VDP, CS
Image) can be viewed on the portable terminal 804 of the kitchen 808. In the bathroom 810, an installation terminal is fixed to a wall or the like, and the network line 801 is directly connected to the installation terminal. This is because there is a possibility that the optical I / F will be obstructed by steam or the like in the bathroom, and there is no place to put it on a mobile terminal, and it is more convenient to attach it to a wall or the like. Similarly to the mobile terminal placed in the kitchen 808, the installation terminal 807 in the bathroom 810 controls the AV equipment installed in the living room 809 and outputs each image and sound output device (VTR, VDP,
An image from CS or the like) can be viewed on the installation terminal 807 of the bathroom 810.

FIG. 9 shows an example of the shape of a mobile terminal. In this figure, the shape of the mobile terminal is an elongated trapezoidal shape, and a lying shape 901 as shown in FIG.
You can choose from two types of placement, as shown in. At this time, in FIG. 9A, the portable terminal 900
The shape will be seen from the thin side. This facilitates input on the touch panel on the mobile terminal. At this time, the image displayed on the display 901 is displayed so that the wider side of the mobile terminal 900 is at the top. Also in FIG.
In (b), the portable terminal 900 is installed upright with the wide side facing down. In this case, the main purpose is to view the screen, and the display direction of the image is displayed on the display 902 such that the narrower side of the portable terminal 900 is the upper side. Although not shown, these switching are automatically determined by a built-in gravity sensor (a configuration of a metal ball and a switch, a beam and a strain gauge, or the like may be used).
Further, in the case of FIG. 9A, there is a possibility that the user is in a wider width of the mobile terminal 900, especially when operating the mobile terminal facing another person. It is also possible to invert the top and bottom of.

FIG. 10 shows an example of constructing a portable terminal capable of artificially viewing images and sounds by using current AV equipment without using a dedicated bus for connecting AV equipment. Current TV 1001, VTR1 (1002), VT
R2 (1003) and VDP (1004) are TV 100
1 are connected to the AV selectors built-in, and the video and audio cables 1010, 1011, and 10 are connected, respectively.
Connected at 12. In the conventional remote controller, the commands 1006, 1007, 100 by the light are unilaterally used.
8 and 1009 to control each AV device.
Of course, by the instruction 1006 to the TV 1001, the TV 10
It was also possible to switch the AV selector of 01 to specify which AV device to watch. In the present invention,
A monitor output signal from the TV 1001 (a signal output from a terminal for outputting the image and sound currently displayed by the TV 1001 as it is) is transmitted to the video transmitter 1014, and the video transmitter uses optical or radio waves to output the image and the sound. The data 1005 is stored in the mobile terminal 100.
0, the mobile terminal 1000 can decode the received image and audio data and watch it on the monitor.

In the above-described embodiments, light is used for communication between the portable terminal and the bus. However, not only light but also weak radio waves may be used within a range not covered by the Radio Law. However, it is also possible to use high-frequency sound that is inaudible to the human ear.

[0021]

According to the present invention described above, a portable terminal for controlling AV equipment can be freely carried within a range of a home (for example, within a radius of 10 meters from an optical I / F). It is also possible to watch the image and sound of the program output by the AV device on the mobile terminal, and when watching the TV, it is possible to move freely beyond the limitation that the TV must be installed in the living room. You can watch images and sounds in any posture. In addition, even in a room completely different from the living room where the AV equipment is installed, by installing the optical I / F in a different room by wire using a network, the AV equipment can be installed from another room using a mobile terminal. You can control and watch images and sounds.

[Brief description of drawings]

FIG. 1 is a block diagram showing a connection relationship between an AV device and a mobile terminal according to the present invention.

FIG. 2 is a detailed block diagram in which internal functions of AV equipment are divided and connected centering on a bus.

FIG. 3 is an external view of a mobile terminal, showing how the display is displayed.

FIG. 4 is a diagram showing an example of a specific signal format of a bus.

FIG. 5 is a specific circuit configuration diagram of an optical I / F connecting a bus and a mobile terminal.

FIG. 6 is a system block diagram when transmitting not only commands of AV equipment but also image data using an optical I / F.

FIG. 7 is a block diagram showing a configuration for viewing images and sounds output by AV equipment on a mobile terminal.

FIG. 8 is a configuration diagram of the entire system of an AV network in a home.

FIG. 9 is a diagram showing an example of the shape of a mobile terminal.

FIG. 10 is a diagram showing an example of configuring a mobile terminal capable of pseudo viewing of images and sounds by using current AV equipment without using a dedicated bus connecting AV equipment.

[Explanation of symbols]

100, 300, 804, 805, 900, 1000 ...
Mobile terminals, 101 ... Optical I / F, 102, 200 ... Bus, 311 ... Display, 500, 605, 611 ... LED, 501, 606, 611 ... Sensor, 1014 ... Video transmitter.

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical indication H04N 5/00 A

Claims (24)

[Claims] 1. In an AV equipment system composed of audio & visual equipment such as a television, a video recording device, a video disc player, a satellite broadcast tuner, etc., each equipment outputs information input or output to each equipment. An AV control system characterized by being connected to each other by a shared bus. 2. The AV control system according to claim 1, further comprising a wireless interface for converting a signal of the bus into a wireless signal by a wireless signal transmitting means such as light, radio waves, or sound waves. system. 3. The AV control system according to claim 2, wherein image and audio information is transmitted on the bus and as a radio signal. 4. The AV control system according to claim 3, wherein the image and audio information transmitted on the bus is transmitted using an error correction protocol. 5. The AV control system according to claim 3, wherein the image and audio information transmitted on the bus is compressed by using an appropriate data compression method. 6. The AV control system according to claim 2, wherein when the image and audio information on the bus signal is converted into a wireless signal by the wireless interface, the wireless signal is transmitted using an error correction protocol. An AV control system characterized in that 7. The AV control system according to claim 3, wherein when the image and audio information on the bus signal is converted into a wireless signal by the wireless interface, a compression operation is performed by using an appropriate data compression method. An AV control system characterized by performing. 8. The AV control system according to claim 2, wherein a wireless interface for converting the signal of the bus into a wireless signal by a wireless signal transmission means such as light, radio wave or sound wave, the signal of the bus is a wireless signal. An AV control system characterized in that conversion is performed using an error correction protocol in the conversion step. 9. The AV control system according to claim 1, wherein not only AV equipment but also equipment other than AV equipment such as a bath water heating monitoring device and a telephone line can be connected to the bus. An AV control system characterized in that 10. The AV control system according to claim 3, wherein the image and audio information can be transmitted to a portable terminal device connected to the bus via an optical interface. Control system. 11. The AV control system according to claim 4 or 6, wherein the transmitted image and audio information is transmitted to an error correction protocol to a portable terminal device connected to the bus via an optical interface. An AV control system characterized by being restored by using. 12. The AV control system according to claim 5 or 7, wherein the mobile terminal device connected to the bus via an optical interface transmits the image compressed by the appropriate method. And an AV control system which is restored by using an algorithm for restoring audio information. 13. The AV control system according to claim 10, 11 or 12, wherein said portable terminal device has means for outputting an image and a sound, and transmits said transmitted image and sound information. An AV control system characterized by being reproduced by the portable terminal device. 14. The AV control system according to claim 2 or 9, wherein the mobile terminal device outputs a control signal of each AV device or each home electric appliance by the wireless signal. AV control system. 15. In an AV equipment system composed of audio and visual equipment such as a television, a video recording device, a video disc player, a satellite broadcast tuner, etc., image and audio information inputted or outputted to each equipment, An AV control system having a wireless interface for converting into a wireless signal by wireless signal transmission means such as light, radio waves or sound waves. 16. The AV control system according to claim 15, further comprising a mobile terminal device for receiving the wireless signal, wherein the mobile terminal device wirelessly controls light or radio waves, sound waves or the like for controlling each AV device. An AV control system having a function of outputting a signal and a means of outputting an image and a sound, wherein the transmitted image and sound signals are reproduced by the portable terminal device. 17. The AV control system according to claim 15, wherein the image and audio information is converted into a wireless signal by using an error correction protocol. 18. The AV control system according to claim 17, further comprising a mobile terminal device that receives and restores the wireless signal using an error correction protocol, and the mobile terminal device controls each AV device. An AV control having a function of outputting a wireless signal such as light, radio waves or sound waves, and means for outputting an image and a sound, and reproducing the transmitted image and sound signals by the portable terminal device. system. 19. The AV control system according to claim 15, wherein the image and audio information is compressed using an appropriate compression method and converted into a radio signal. 20. The AV control system according to claim 17, further comprising a mobile terminal device for receiving / restoring using an algorithm for restoring a radio signal compressed by the appropriate compression method, the mobile terminal device. Has a function of outputting a radio signal such as light or radio waves or sound waves for controlling each AV device, and means for outputting an image and a sound, and the portable terminal device reproduces the transmitted image and sound signal. An AV control system characterized by: 21. The AV control system according to claim 2, further comprising a mobile terminal for transmitting and receiving the wireless communication. 22. The AV control system according to claim 8, wherein the portable terminal which transmits and receives the error-corrected wireless communication performs error correction processing on the received data and outputs the transmitted original data. An AV control system characterized by restoration. 23. The AV control system according to claim 1, wherein at the same time when the power of the AV control system is turned on, the portable terminal scans all the AV equipment, and the signal on the bus is a synchronization signal at a fixed time interval. It is characterized in that the command area of each AV device is reserved in the order in which the AV device starts up, and after the reservation of all devices is completed, the remaining area is reserved as a transmission part of image and audio information. AV control system. 24. The AV control system according to claim 1, wherein at the same time when the power of the AV control system is turned on, the mobile terminal scans all the AV equipment, and the signal on the bus is a synchronization signal at a fixed time interval. An AV control system characterized in that among them, first, it is reserved as a transmission part of image and audio information, and the remaining part is reserved in the command area of each AV device in the order in which the AV device is started up.