JP4967315B2 - AV system - Google Patents

Description

The present invention includes a plurality of AV devices, about the connectable AV system to control devices having multiple connection terminals.

  Conventionally, in an AV system in which a plurality of AV devices can be connected to a control device having a large number of connection terminals such as a DTV and a set-top box, the user can grasp the diversified functions and use various functions. There was a problem that it was difficult. In addition, AV device switching operations are performed using the input switch button on the remote control, and in particular, operations of devices equipped with network connection terminals are performed on the menu screen based on pressing of the menu button. There was a problem that it was difficult to do.

Therefore, an AV device network system (see Patent Document 1) that displays a list of a plurality of AV devices connected to the control device classified according to type, manufacturer, or the like, and each connected AV device. An AV system (see Patent Document 2) has been developed in which the connection state of the video signal and / or audio signal flow is displayed on the screen, and the setting can be appropriately changed from the screen. In addition, an AV device network system in which a control device selects a specific AV device to perform a receiving operation, records an image signal of each broadcast program obtained from the AV device on a recording medium, and displays it on a multi-screen (Patent) Reference 3) has been developed.
Japanese Patent Laid-Open No. 2002-44096 Japanese Patent Laid-Open No. 9-1554077 JP 2002-44556 A

  However, in the AV system technology disclosed in Patent Documents 1 to 3, only the AV device connected to the network is displayed when the connection status of the AV device is detected. It is difficult to grasp the function, perform a desired operation, and further improve the use of the function in the AV system.

An object of the present invention, in the AV system, the user, knows the connection terminals and functions provided in the control equipment comprising a plurality of connection terminals for connecting the AV equipment, the improvement of the selection operation of the connection terminals and functions It is to plan.

In order to solve the above problems, the invention according to claim 1 is an AV system including a plurality of AV devices, and a control device including a plurality of connection terminals and a display unit for connecting the AV devices.
The control device is
A plurality of items indicating the purpose of using the control device, a target of operation corresponding to one of the plurality of items indicating the purpose of use, connection terminal information related to the connection terminal to be used corresponding to the target of the operation, and List display control means for displaying a list of function information related to the function of the control device on the display unit;
A selection means for selecting an arbitrary connection terminal or function from the connection terminal information and the function information displayed in a list on the display unit;
Switching means for switching to the connection terminal or function selected by the selection means;
Detecting means for detecting a connection terminal to which the AV device is connected;
Explanation display control means for displaying explanation information on the connection terminal or function selected by the selection means on the display unit displayed in the list ,
The list display control means is configured such that when one of the plurality of items indicating the purpose of use is selected by a user, an operation target corresponding to one of the plurality of items indicating the use purpose and the operation target The connection terminal information related to the connection terminal to be used and the function information related to the function of the control device are displayed on one display screen of the display unit, and the connection terminal to which the AV device detected by the detection means is connected Display the connection terminal information in a different manner from the connection terminal information of other connection terminals,
The description information includes arrangement position information related to an arrangement position of the connection terminal.

According to the invention described in claim 1, a plurality of AV devices, and a control device comprising a plurality of connection terminals and a display unit for connecting the AV devices in the AV system comprising, by list display control means, the control Functions related to a plurality of items indicating the purpose of using the device, an operation target corresponding to one of the items indicating the use purpose, connection terminal information related to the connection terminal to be used and a function of the control device corresponding to the operation target The information is displayed in a list on the display unit, and the selection means can select any connection terminal or function from the connection terminal information and function information displayed in the list, and the connection terminal selected by the selection means by the switching means. Or it can be switched to a function. Therefore, it is possible to provide an AV system in which the user can easily grasp the connection terminals and functions provided in the control device and can improve the selection operability of the connection terminals and functions.
Further, the list display control means displays the connection terminal information of the connection terminal to which the AV device detected by the detection means is connected in a manner different from the connection terminal information of the other connection terminals. The connected connection terminals can be easily recognized, and further, the explanation display control means displays the explanation information on the connection terminals or functions selected by the selection means on the list display section, so that the user can Information on the function of the connection terminal or the control device can be easily known. And since the said description information includes the arrangement position information regarding the arrangement position of the connection terminal, the user can easily recognize the arrangement position of the connection terminal.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In the present embodiment, a television receiver will be described as an example of a control device including a plurality of connection terminals and a display unit for connecting AV devices in the AV system, but the control device is not limited thereto. Alternatively, an STB (Set Top Box), HDD / DVD recorder, or the like may be used.

First, the overall configuration of the AV system 100 will be described with reference to FIG.
The AV system 100 of this embodiment includes a plurality of AV devices 20, a plurality of connection terminals 21 (see FIG. 2) for connecting the AV devices 20, and a display screen 18a (see FIG. 2) as a display unit. A television receiver 10 as a control device and a remote control device (hereinafter referred to as a remote controller) 30 for a user to input various instructions to the television receiver 10 by remote operation are configured.

For example, as shown in FIG. 2, the remote controller 30 includes an on / off key 30 a for turning on / off the power of the television receiver 10, a video signal input from the AV device 20 via the connection terminal 21, and And / or an input switching key 30b for selecting and switching to an audio signal, a menu key 30c for displaying various menu screens on the display screen 18a, and a cursor key 30d for selecting a desired item on the menu screen or the like And a confirmation key 30e for confirming an item selected on the menu screen. Further, although not shown, a channel key for selecting a channel of a predetermined frequency, a channel up / down key for changing the channel, a volume up / down key for adjusting the volume, and the like, etc. When each key is pressed, an input operation signal such as an infrared ray corresponding to the pressed key is output from an infrared light emitting diode (not shown), and the input operation signal is a remote control signal. The light is output to the control unit 3 via the light receiving unit 31.
The remote controller 30 uses a cursor key 30d, a confirmation key 30e, or the like to select an arbitrary connection terminal or function from the connection terminal information or function information displayed on the display screen 18a in a display control program 35b and a switching program 35c described later. By selecting, it functions as a selection means.

The television receiver 10 includes, for example, a television unit 1 having a function of the television receiver 10 in the receiver body 10a, an interface unit 2 for connecting the AV device 20 to the television receiver 10, and a television receiver. It is configured to include three units of the control unit 3 that performs overall control of the machine 10.
Hereinafter, each unit will be described in detail.

  The television unit 1 includes, for example, an antenna 11 that receives a broadcast signal, a tuner unit 12 that is connected to the antenna 11 and receives a broadcast signal of a predetermined frequency from the antenna 11, and a broadcast signal input by the tuner unit 12. A demodulator 13 that demodulates, a decoder 14 that decodes the broadcast signal demodulated by the demodulator 13, a video processor 15 that performs predetermined processing on video data output from the decoder 14 and the AV device 20, and a decoder 14 and an audio processing unit 16 that performs predetermined processing on audio data output from the AV device 20, and a GUI screen superimposing unit that superimposes a GUI (Graphical User Interface) screen on the video signal processed by the video processing unit 15. 17, a video output unit 18 that outputs the video signal output from the video processing unit 15, and an audio signal output from the audio processing unit 16. Consisting comprise, an audio output unit 19 for outputting.

  The antenna 11 is arranged outdoors in a predetermined direction, and receives a radio frequency (RF) RF signal transmitted from a television broadcasting station (not shown).

  Although not shown, the tuner unit 12 includes a UHF / VHF tuner, a BS tuner, and a CS newer. Each tuner includes a high-frequency amplifier circuit, a frequency converter circuit including a local oscillation circuit, and a mixing circuit. It is prepared for. The tuner unit 12 mixes the RF signal received by the antenna 11 and the local oscillation signal output from the local oscillation circuit by a mixing circuit, selects the frequency of the RF signal, and tunes to the channel to receive the image. In response to a control signal from the control unit 3, a digital / analog RF signal in a specific frequency band corresponding to the tuned channel is received. Then, the received digital / analog RF signal is converted into an intermediate frequency signal (IF signal) having a predetermined intermediate frequency and output to the demodulator 13.

  For example, although not shown, the demodulator 13 includes a digital signal demodulator and an analog signal demodulator. The digital signal demodulator 13 receives the digital signal input from the tuner unit 12 in accordance with the control signal from the control unit 3. The IF signal is amplified, demodulated, error-corrected, etc., and a transport stream (TS) is generated. The transport stream is further converted into a video stream and audio under the MPEG2 (Moving Picture Experts Group 2) standard. The video stream and the audio stream are supplied to the decoder 14 and the data included in the PSI / SI is supplied to the control unit 3 while being separated into a stream and PSI / SI (Program Specific Information / Service Information). The analog signal demodulator performs processing such as amplification and demodulation on the analog IF signal input from the tuner unit 12 to generate video data and audio data.

The decoder 14 includes a video decoder and an audio decoder (not shown). The video decoder decodes the video stream input from the demodulator 13, performs inverse DCT conversion, motion compensation control, and the like to generate video data. On the other hand, the audio decoder decodes the audio stream input from the demodulator 13 to generate audio data.
The video / audio data generated by the demodulator 13 and the decoder 14 is output to the video processing unit 15 or the audio processing unit 16.

The video processing unit 15 performs various processes such as D / A conversion on the video data input from the decoder 14 to generate a video signal, and outputs the generated video signal to the video output unit 18.
The audio processing unit 16 performs various processes such as D / A conversion on the audio data input by the decoder 14, generates an audio signal, and outputs the generated audio signal to the audio output unit 19.

  The GUI screen superimposing unit 17 performs processing for combining GUI screen data (not shown) with the video signal processed by the video processing unit 15 in accordance with a control signal from the control unit 3.

The video output unit 18 includes a display screen 18a such as a CRT (Cathode Ray Tube), an LCD (Liquid Crystal Display), etc., and displays video based on the video signal input from the video processing unit 15 on the display screen 18a. Let
The audio output unit 19 includes, for example, a speaker 19a, and causes the speaker 19a to output audio based on the audio signal input from the audio processing unit 16.

For example, as illustrated in FIG. 3, the interface unit 2 connects any one of the connection terminals 21 based on a plurality of connection terminals 21 and an input switching control signal input from the control unit 3. Connected to the selector 22 as a switching means for performing a switching process for receiving a video / audio signal from the AV device 20 connected to the connection terminal 21, and a signal input from each connection terminal 21 is detected. Thus, a connection detection unit 23 is provided as detection means for detecting the presence / absence of connection of the AV device 20 for each connection terminal 21.
Specifically, when the input switch key 30 b of the remote controller 30 is pressed by the user, an input operation signal for switching to the video / audio signal output from the AV device 20 is output to the selector 22 via the control unit 3. In response to the input operation signal, the selector 22 sequentially switches the connection terminal 21 to be connected every time the input switch key 30b is pressed. When the connection terminal 21 provided in the television receiver 10 displayed on the display screen 18a is selected by executing a display control program 35b described later, an input operation signal for switching to the selected connection terminal 21 is controlled. The signal is output to the selector 22 via the unit 3, and the selector 22 switches the connection to the selected connection terminal 21 in accordance with the input operation signal.

  FIG. 4 is a diagram illustrating the connection terminals 21 provided on the rear surface (FIG. 4A) and the front surface (FIG. 4B) of the receiver body 10a. For example, as shown in FIGS. 3 and 4, the receiver body 10a includes a video input terminal (S terminal / video terminal / audio terminal) 21a, a component input terminal (D terminal / audio terminal) 21b, an HDMI terminal 21c, A connection terminal 21 such as a PC input terminal 21d, a LAN terminal 21e, an IEEE 1394 terminal 21f, and a memory card slot 21g is provided, and a predetermined AV device 20 is connected to each of them. A card type information storage device (not shown) is inserted.

  For example, the connection detection unit 23 detects whether or not the AV device 20 is connected to each connection terminal 21 by detecting the presence / absence of a signal (for example, a synchronization signal) from the connection terminal 21 and the detection result. Is output to the control unit 3. For example, the connection detection unit 23 outputs a detection signal “H” to the control unit 3 when there is a synchronization signal from the connection terminal 21, and outputs a detection signal “L” to the control unit 3 when there is no synchronization signal. .

Here, the plurality of AV devices 20 connected to the television receiver 10 include, for example, a DVD (Digital Versatile Disc) recorder 20a, a D-VHS (Data Video Home System) video deck 20b, a personal computer (Personal Computer) 20c, A game machine 20 d or the like, which is connected to the television receiver 10 by a connection terminal 21 provided in the interface unit 2.
Specifically, the DVD recorder 20a is connected to the television receiver 10 through a video input terminal 21a, for example, reads out data recorded on a DVD, and connects to the television receiver 10 through the video input terminal 21a. While outputting, the data input from the television receiver 10 via the video input terminal 21a is recorded on DVD. The D-VHS video deck 20b is connected to the television receiver 10 via, for example, an IEEE 1394 terminal 21f, reads out data recorded on the tape, and outputs the data to the television receiver 10 via the IEEE 1394 terminal 21f. At the same time, data input from the television receiver 10 via the IEEE 1394 terminal 21f is recorded on the tape. The personal computer 20c is connected to the television receiver 10 by, for example, a PC input terminal 21d, reads out data from the personal computer 20c, and outputs it to the television receiver 10 through the PC input terminal 21d. For example, the game machine 20d is connected to the television receiver 10 via a component input terminal 21b, reads data recorded in the game software, and outputs the data to the television receiver 10 via the component input terminal 21b.

  The control unit 3 includes a remote control signal light receiving unit 31, an I / O port 32, a CPU (Central Processing Unit) 33, a RAM (Random Access Memory) 34, a ROM (Read Only Memory) 35, and the like. It is configured.

  The remote control signal light receiving unit 31 receives an input operation signal output by pressing various keys provided in the remote control 30, performs processing such as amplification, detection, and error correction, and outputs the input operation signal to the CPU 33.

  The CPU 33 is input via the remote control signal light receiving unit 31 and the I / O port 32 by pressing the input signals input from the respective units of the receiver body 10 a via the I / O port 32 and various keys of the remote control 30. Various programs stored in the ROM 35 are executed in accordance with input operation signals and the like, and a control signal is output to each unit via the I / O port 32 to control the overall operation of the receiver body 10a.

  The RAM 34 stores processing results generated when various programs are executed by the CPU 33, input data, and the like.

  The ROM 35 includes various programs such as a detection program 35a, a display control program 35b, and a switching program 35c.

The detection program 35a is, for example, a program that causes the CPU 33 to realize a function of detecting the connection terminal 21 to which the AV device 20 is connected.
Specifically, for example, the CPU 33 causes the connection detection unit 23 to detect an input signal (for example, a synchronization signal) every predetermined time (for example, every 3 seconds) and controls the detection result. Let the part 3 output. Based on the detection result, the CPU 33 records the detection result of the presence / absence of an input signal from each connection terminal 21 in the RAM 34 as flag information for each connection terminal 21. The flag information indicating the presence / absence of an input signal from the connection terminal 21 recorded in the RAM 34 is recorded as “1” when there is an input of a signal from the connection terminal 21, for example. 20 is determined to be connected. Further, when there is no signal input from the connection terminal 21, it is recorded as “0”, and it is determined that the AV device 20 is not connected to the connection terminal 21. The flag information is appropriately referred to by the CPU 33 in the execution of the display control program 35b described later.
The CPU 33 functions as a detection unit together with the connection detection unit 23 by executing the detection program 35a.

  The display control program 35b is a program that, for example, causes the CPU 33 to realize a function of displaying a list of connection terminal information regarding the connection terminal 21 to be used and function information regarding the function of the television receiver 10 on the display screen 18a for each purpose. . Further, in the connection terminal information displayed as a list on the display screen 18a, the connection terminal information of the connection terminal 21 to which the AV device 20 detected by the execution of the detection program 35a is connected is the connection terminal to which the AV device 20 is not connected. It is displayed in a mode different from the 21 connection terminal information. Furthermore, for example, when the connection terminal 21 or a function is selected by the user from the connection terminal information and the function information displayed on the display screen 18a in the CPU 33, the display control program 35b selects the selected connection terminal 21. Or the function to display the explanatory information regarding the function of the television receiver 10 on the display screen 18a is implement | achieved.

Specifically, when the menu key 30c of the remote controller 30 is pressed by the user and an input operation signal based on the pressing is input, the CPU 33 connects the connection terminal information and the television regarding the connection terminal 21 provided in the television receiver 10. A control signal for superimposing a menu screen for displaying function information related to functions provided in the receiver 10 on a video signal basis is output to the GUI screen superimposing unit 17. The GUI screen superimposing unit 17 superimposes the GUI screen on the video signal output from the video processing unit 15 in accordance with the control signal, and a menu screen on which the connection terminals 21 and functions are listed according to purpose is displayed on the display screen 18a. It will be.
Further, in the menu screen in which the connection terminals 21 and functions are displayed in a list according to purpose, the CPU 33 indicates the detection result of the presence or absence of the input signal for each connection terminal 21 detected by the detection program 35a, and flag information recorded in the RAM 34. , It is detected that the AV device 20 is connected, the connection terminal information of the connection terminal 21 in which the flag information is recorded as “1”, and the AV device 20 is not connected. The connection terminal information of the connection terminal 21 in which the flag information is recorded as “0” is displayed so as to be distinguished based on, for example, display density.
In addition, the CPU 33 displays a menu screen in which the connection terminals 21 and functions are listed according to purpose on the display screen 18a, and the user performs a selection operation (for example, cursor position 30d) of the remote controller 30 on the menu screen. When the connection terminal 21 or function is selected by the movement operation), a control signal for superimposing a description on the selected connection terminal 21 or function on the video signal is output to the GUI screen superimposing unit 17. The GUI screen superimposing unit 17 superimposes the GUI screen on the video signal output from the video processing unit 15 in accordance with the control signal, and the explanatory information regarding the selected connection terminal 21 or function is displayed on the display screen 18a. . Further, the explanation information includes arrangement position information indicating the arrangement position of the connection terminal 21 in the receiver body 10a.
The CPU 33 functions as a list display control unit and an explanation display control unit by executing the display control program 35b.

The switching program 35c is a program that, for example, causes the CPU 33 to realize a function of switching to the selected connection terminal 21 or function when the connection terminal information and function information displayed on the display screen 18a are selected by the user.
Specifically, by executing the display control program 35b, the CPU 33 performs a cursor key 30d, a confirmation key 30e, etc. of the remote controller 30 by the user on a menu screen on the display screen 18a in which the connection terminals 21 and functions are listed according to purpose. When the connection terminal 21 or the function is selected by the selection operation according to, the process is switched to the process corresponding to the selected connection terminal 21 or the function.
The CPU 33 functions as a switching unit by executing the switching program 35c.

Hereinafter, the display control program 35b and the switching program 35c described above will be described more specifically with reference to FIG.
FIG. 5 is a diagram illustrating a menu screen displayed on the display screen 18 a by the execution of the display control program 35 b by the CPU 33.

  First, when the user presses the menu key 30c of the remote control 30, an input operation signal for displaying the menu screen on the display screen 18a is output to the CPU 33 via the remote control signal light receiving unit 31, and the CPU 33 Based on the input operation signal, the GUI screen superimposing unit 17 displays a predetermined menu screen on the display screen 18a. The menu screen displays items indicating the purpose of using the television receiver 10 such as “view”, “save (recording)”, and “game”. The user can select the menu screen according to the purpose of using the television receiver 10. The desired item is selected using the cursor key 30d and the enter key 30e of the remote control 30.

On the menu screen, for example, when a user selects a target item “view” by operating the remote controller 30 and an input operation signal based on the selection operation is output to the CPU 33, the CPU 33 displays FIG. As shown, for each operation target such as “watch TV broadcast”, “view from connected device”, “view from network-connected device”, “view from memory card” by the GUI screen superimposing unit 17 based on the input operation signal. The function information and connection terminal information of the television receiver 10 are displayed in a list.
Specifically, for example, as shown in FIG. 5 (a), “terrestrial digital broadcast”, “terrestrial analog broadcast”, “BS digital broadcast”, “110 degrees”, corresponding to the item “watch TV broadcast”. A list of function information relating to functions of the television receiver 10 such as “CS digital broadcasting” is displayed. Corresponding to the item “view from connected device”, “video input terminal (S terminal / video terminal / audio terminal)” “component input terminal (D terminal / audio terminal)” “HDMI terminal” “PC input terminal” The connection terminal information regarding the connection terminal 21 provided in the television receiver 10 is displayed in a list. Corresponding to the item “view from network connection terminal”, connection terminal information related to the connection terminal 21 provided in the television receiver 10 such as “LAN terminal” and “IEEE1394 terminal” is displayed in a list. Further, in correspondence with the item “view from the memory card”, connection terminal information regarding the connection terminals 21 provided in the television receiver 10 such as “memory card slot” is displayed in a list.

Further, in the list display of the connection terminal information, it is detected that the AV device 20 is connected, and the connection terminal information of the connection terminal 21 in which the flag information is recorded as “1” is darkly highlighted, and the AV device 20 is displayed. Is detected as not connected, and the connection terminal information of the connection terminal 21 in which the flag information is recorded as “0” is displayed lightly, thereby distinguishing the presence or absence of connection of the AV device 20 for each connection terminal 21. Can do.
For example, in the interface unit 2, a DVD recorder 20a is connected to the video input terminal 21a, a D-VHS video deck 20b is connected to the IEEE 1394 terminal 21f, a personal computer 20c is connected to the PC input terminal 21d, and a component input terminal 21b. When the game machine 20d is connected, as shown in FIG. 5 (a), in the connection terminal information list display, the video input terminal 21a, the IEEE 1394 terminal 21f, the PC input terminal 21d, and the component input terminal 21b are displayed. The connection terminal information of the connection terminal 21 to which the AV device 20 is connected is highlighted in dark, and the other connection terminal information is displayed lightly.

  Further, in FIG. 5A, when the cursor is moved to each item by the user's operation of the cursor key 30d of the remote controller 30, etc., the CPU 33 displays the description function related to the function to which the cursor has moved or the connection terminal 21. .

  For example, in FIG. 5A, when the function “BS digital broadcasting” is selected by the user, as shown in FIG. 5B, the CPU 33 provides explanation information about the function BS digital broadcasting (for example, “broadcasting”). TV broadcasts using satellite-based digital signals.You can enjoy high-quality video, high-quality sound, multi-channel programs, and data broadcasting.

  Further, in FIG. 5B, when the user selects desired function information using the cursor key 30d and the enter key 30e of the remote controller 30, an input operation signal based on the selection operation is output to the CPU 33, and the CPU 33 Based on the input operation signal, the processing is switched to the processing of the selected function. For example, when the function “BS digital broadcasting” is selected by the user, the CPU 33 starts processing the BS digital broadcasting broadcast signal by the tuner unit 12 or the like.

  On the other hand, for example, in FIG. 5A, when the connection terminal 21 “LAN terminal” is selected by the user, as shown in FIG. 5C, the CPU 33 explains the explanation information about the LAN terminal 21e (for example, “ Connect to a device equipped with a LAN terminal (HDD / DVD recorder, network player, etc. View the content of the device connected to the home LAN, or record the content on the device "). In addition, in the explanation information, the arrangement position of the selected connection terminal 21 is also displayed (for example, “located on the back of the main body”).

  Further, in FIG. 5C, when the user selects a desired connection terminal 21 using the cursor key 30d and the confirmation key 30e of the remote controller 30, an input operation signal based on the selection operation is output to the CPU 33, and the CPU 33 Switches to processing of the selected connection terminal 21 based on the input operation signal. For example, when “LAN terminal” is selected by the user, the CPU 33 outputs a control signal for switching the connection to the LAN terminal 21 e to the selector 22 of the interface unit 2, and the video processing unit 15, audio processing unit 16 or the like, processing of a signal input from the LAN terminal 21e is started.

According to the AV system 100 according to the present invention described above, by the execution of the display control program 35b by the CPU 33, the connection terminal information regarding the connection terminal 21 to be used and the function information regarding the function of the television receiver 10 are displayed for each purpose. An arbitrary connection terminal 21 or a function can be selected from the connection terminal information and the function information displayed on the screen 18a as a list, and displayed on the list by the operation of the remote controller 30, and the CPU 33 executes the switching program 35c to execute the switching program 35c. The connection terminal 21 or the function selected by the operation is switched. Therefore, in an AV system 100 that includes a plurality of AV devices 20 and a television receiver 10 that includes a plurality of connection terminals 21 and a display screen 18 a for connecting the AV devices 20, a user connects to the television receiver 10. It is possible to provide the AV system 100 in which the connection terminal 21 and the function provided can be easily grasped and the selection operability of the connection terminal 21 and the function can be improved.
Further, when the display control program 35b is executed by the CPU 33, the connection terminal information of the connection terminal 21 to which the AV device 20 detected by the execution of the detection program 35a is connected is different from the connection terminal information of the other connection terminals 21. Thus, the user can easily recognize the connection terminal 21 to which the AV device 20 is connected, and further, explanatory information regarding the function of the connection terminal 21 or the television receiver 10 selected by operating the remote controller 30. Is displayed, the user can easily know information on the function of the connection terminal 21 or the television receiver 10. And since the said description information includes the arrangement position information regarding the arrangement position of the connection terminal 21, the user can easily recognize the arrangement position of the connection terminal 21.

The present invention is not limited to the above embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.
For example, the display control program 35b is designed to display the connection terminal information related to the connection terminal 21 and the function information related to the function of the television receiver 10 on the display unit, but the information displayed by the display control program 35b is included in these displays. Without being limited thereto, information related to the function of the remote controller 30 may be displayed.
In addition, the design is such that the connection terminal 21 to which the AV device 20 is connected is detected by the detection program 35a, but the design may be such that usable functions are detected by the detection program 35a.
In addition, the GUI screen superimposing unit 17 is designed to display the GUI screen on the display screen 18a by executing the display control program 35b. However, the design may be such that the OSD display is performed on the display screen 18a by the OSD additional circuit. .

It is the figure which illustrated the structure of the AV system concerning this invention. It is the block diagram which illustrated the principal part composition of the AV system concerning the present invention. It is the block diagram which illustrated the principal part composition of the interface part. It is the figure which illustrated the connection terminal with which a receiver main body is equipped. It is the figure which illustrated the menu screen displayed on a display screen by execution of a display control program.

Explanation of symbols

100 AV system 10 Television receiver (control device)
21 Connection terminal 21a Video input terminal (connection terminal)
21b Component input terminal (connection terminal)
21c HDMI terminal (connection terminal)
21d PC input terminal (connection terminal)
21e LAN terminal (connection terminal)
21f IEEE1394 terminal (connection terminal)
21g Memory card slot (connection terminal)
23 Connection detection unit (detection means)
33 CPU (detection means, list display control means, explanation display control means, switching means)
35a Detection program (detection means)
35b Display control program (list display control means, explanation display control means)
35c switching program (switching means)
20 AV equipment 20a DVD recorder (AV equipment)
20b D-VHS video deck (AV equipment)
20c PC (AV equipment)
20d Game console (AV equipment)
30 Remote control (selection means)

Claims (1)

In an AV system comprising a plurality of AV devices and a control device comprising a plurality of connection terminals and a display unit for connecting the AV devices,
The control device is
A plurality of items indicating the purpose of using the control device, a target of operation corresponding to one of the plurality of items indicating the purpose of use, connection terminal information related to the connection terminal to be used corresponding to the target of the operation, and List display control means for displaying a list of function information related to the function of the control device on the display unit;
A selection means for selecting an arbitrary connection terminal or function from the connection terminal information and the function information displayed in a list on the display unit;
Switching means for switching to the connection terminal or function selected by the selection means;
Detecting means for detecting a connection terminal to which the AV device is connected;
Explanation display control means for displaying explanation information on the connection terminal or function selected by the selection means on the display unit displayed in the list ,
The list display control means is configured such that when one of the plurality of items indicating the purpose of use is selected by a user, an operation target corresponding to one of the plurality of items indicating the use purpose and the operation target The connection terminal information related to the connection terminal to be used and the function information related to the function of the control device are displayed on one display screen of the display unit, and the connection terminal to which the AV device detected by the detection means is connected Display the connection terminal information in a different manner from the connection terminal information of other connection terminals,
The AV system according to claim 1, wherein the explanation information includes arrangement position information related to an arrangement position of the connection terminal.

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