JPH0520032B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a system control device (hereinafter referred to as a system control method) comprising a television receiver and equipment connected thereto.

BACKGROUND ART Conventionally, as a method for controlling a system consisting of a television receiver and each device connected to the television receiver, the television receiver has a character pattern for controlling each device.
There are devices in which a character pattern to be controlled is selected by moving a cursor or using a touch panel, etc., and a control code corresponding to the selected character pattern is used to control the corresponding device via a bus line.

First, the conventional system will be explained with reference to FIGS. 4, 5, 6, and 7.

In Figure 4, 1 is an antenna, 2 is a television receiver, 2-1 is a distributor, and RF from antenna 1 is
The input signal is sent to the tuner 2-2 on one side and to the television receiver 2 via the output terminal 2-16 on the other side.
Each message is transmitted to other devices connected to the device.

Further, 2-3 is a video intermediate frequency amplifier (ViF) which converts the RF signal from the tuner 2-2 into a composite video signal. The composite video signal is sent to the signal processing section 2 via the video signal switching section 2-9.
-5, the signal is demodulated and signal-processed, and then superimposed with the character pattern signal from the character generation unit 2-13 in the switching unit 2-6 to the cathode ray tube (CRT) 2-5.
7 is output. Further, 2-4 is a tuning section for controlling the tuner 2-2, and 3 is a remote control transmitter. FIG. 5 shows a detailed front view of this remote control transmitter 3.

In FIG. 5, 5-1 is a key for controlling the power on and off of the television receiver 2, 5-2, 5-
6, 5-3, and 5-5 are keys for moving the cursor (6-7 in Figure 6) displayed on the screen of the CRT 2-7 vertically and horizontally, and 5-4 is an input command key. Input to operate the function corresponding to the character pattern that matches the cursor. 5-7 is a key for turning on or off the menu display.

The coded remote control signal transmitted from the remote control transmitter 3 in FIG.
10, the waveform shaping section 2-11 converts it into a pulse waveform, and the code decoding section 2-12 sends it to the remote control transmitter 3.
The code is determined according to which key of the
-13, character patterns as shown in FIGS. 6, 7, and 8 are generated.

First, operate the menu display key 5-7 to
Display the character pattern screen of the device menu shown at 6 in the figure, and operate the cursor movement keys (5-2, 5-6, 5-3, 5-5) of the remote control transmitter 3 in Figure 4 to perform the operations. Move the cursor 6-7 onto the character pattern of the desired device. In the example of FIG. 6, the cursor 6-7 is placed on a character pattern 6-2 indicating a television receiver. When the input command key 5-4 in FIG. 5 is operated in this state, the CRT screen changes to the television character pattern screen shown at 7 in FIG. Similarly, move the cursor 6-7 onto the character pattern you wish to operate and input the input command key 5-4. In the example of FIG. 7, the cursor 6-7 is located on the character pattern 7-4 of channel 2, so when the input command key 5-4 is operated, channel 2 is selected. At the same time, this character pattern 7-
The color of the number 4 is changed to the color of the other character patterns (indicated by diagonal lines in FIG. 7), indicating that channel 2 is currently being received.

In Fig. 6, 6-1 indicates the character pattern of the TV and AVCS equipment connected to the TV, 6-2 indicates the TV, 6-3 indicates the VTR, and 6-
4 is VHD player, 6-5 is BS tuner, 6-
6 is each character pattern of the character multiplex adapter.

In FIG. 7, 7-1 indicates a character pattern indicating the operation contents of the television, 7-2 indicates the power on/off, 7-3 to 7-14 are channel numbers, 7-15, 7- 21 is the volume up, down,
7-16 and 7-22 are brightness up and down, 7-17 and 7-23 are color up and down, 7-18 and 7-24 are taint up and down, and 7-20 is Miyuto up and down. On and off, 7-26 is a character pattern that means on and off of the off timer.

Further, 7-27 is a pattern indicating termination, and when this is selected, the character pattern screen 7 indicating the operation contents of the television disappears and the screen returns to the device menu pattern screen 6 shown in FIG.

Figure 8 shows the VTR character pattern 6-3 in Figure 6.
A character pattern screen showing the operation details of the VTR is shown when the cursor 6-5 is aligned with the cursor 6-5 to select the VTR. In Figure 8, 8-1 is a character pattern indicating the operation contents of the VTR;
-2 is power on and off, 8-4 to 8-15 are channel numbers, 8-16 is playback, 8-17 is stop, 8-18 is recording, 8-19 is pause, 8-
Reference numeral 20 is a character pattern representing the operation contents of a frame-by-frame VTR. Furthermore, the character pattern 8-3 for "End" is a character pattern to be selected when this character pattern screen 8 is no longer needed.Move the cursor 6-5 to this character pattern and press the input command key 5- in FIG. If an input command is given in step 4, the screen returns to the character pattern screen 6 of the equipment menu shown in FIG.

Also, returning to FIG. 4, 4 indicates a VTR.

from the distributor 2-1 of the television receiver 2.
The RF signal is input to the distributor 4-1 from the input terminal 4-18 of the VTR 4 via the output terminal 2-16. Then, it is converted into an IF signal by tuner 4-2,
It is converted into a composite video signal by the ViF 4-3, demodulated and signal processed by the signal processing section 4-4,
Furthermore, a recording process is performed in a recording processing section 4-5, and the video is recorded on a tape of a VTR via a recording head 4-6.

Information from the tape is extracted by the playback head 4-11, passed through the playback processing section 4-10, further through the signal switch 4-9, and then through the output terminal 4-20 to the input terminal of the television receiver. 2-19, the signal is inputted to the signal processing section 2-5 via the signal switching section 2-9, and displayed on the CRT 2-7 as described above.

Further, 4-7 is a tuning section for controlling the tuner 4-2.

When the reproduction character pattern 8-16 is selected by the remote control transmitter 3 on the VTR character pattern screen 8 in FIG.
0, code decoding unit 2 via waveform shaping unit 2-11
-12, the signal is decoded by the control signal generator 2-8 through the terminal 2-18, and then from the terminal 4-21 via the one-way bus line to the control signal generator 4- in the VTR 4.
Sent to 12. Based on the sent control data, the control signal generator 4-12 switches the signal switch 4-9 to the lower side to perform playback processing and output the signal on the CRT 2-7.
Displays the playback image from VTR4.

Here, terminals 2-17 and 2-18 of the television 2 are through-in/through-out terminals for connecting to other equipment, and 4-21 and 4-22 of the VTR are also similar terminals. Further, the control signal generating section 4-12
It controls each function of the VTR 4 and also processes input data of signals to the data bus. The control signal generating section 2-8 of the television receiver 2 also controls each section of the television and processes output data of signals to the data bus.

Further, 2-14 is a memory for storing character patterns, and the output signal YS of the character generating section 2-13 of the television receiver 2 is a switching signal for superimposing the character pattern signal on the video signal. It is.

Note that a description of control using character patterns and unidirectional bus lines for the BS tuner and character multiplex adapter will be omitted.

Problems to be Solved by the Invention However, with this type of control method, even if only a VTR is connected to the television receiver,
Character patterns from devices that are not connected, such as VHD players, BS tuners, and text multiplex adapters, may be displayed, leading to erroneous operations.

The present invention solves this problem and proposes a system control method that can eliminate unnecessary displays on the devices that make up the system.

Means for Solving the Problem The system control method of the present invention connects a television receiver and devices connected to the television receiver with a bidirectional bus line, and the connection state of each device is established when the television receiver is powered on. The device detects and displays only the character pattern of the connected device.

Function The system control method of the present invention detects connected devices and displays only the character patterns of the connected devices, thereby eliminating unnecessary displays as a system and improving operability. It becomes possible to do so.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a system diagram of the present invention.

Since the operation of each part in FIG. 1 has already been explained in the conventional example using FIG. 4, only the parts different from the conventional example will be explained. In FIG. 1, the control signal generating section 2-8 of the television receiver and the control signal generating section 4- of the VTR are shown.
12 are connected by a bidirectional bus line, and the control signals from the TV receiver and the VTR are transmitted.
The status of the VTR can be viewed from the TV receiver side.

FIG. 2 shows a processing flow for detecting whether a device to be connected to a television receiver is actually connected.

When the TV is turned on and starts up, it outputs a control signal to turn on the VTR via the bidirectional bus line and waits for a response signal from the VTR for a certain period of time. If the response signal is received by the TV receiver within a certain period of time, it is determined as "connection", and if the response signal is not received after a certain period of time, it is determined as "unconnected".
It is stored in the storage means of the control signal generating section 2-8 shown in FIG.

Subsequently, similar control is performed on the VHD player, BS tuner, and text multiplex adapter, and the connection status of each is stored in the storage means.

Next, the information stored in the storage means is sequentially read out, and only the character patterns of the devices stored as connections are displayed on the screen of the television receiver.

FIG. 3 shows an example of a display when only a VTR is connected to a television receiver.

Effects of the Invention As described above, in the system control method of the present invention,
Only the character pattern of the device connected to the TV receiver is displayed, and the character pattern of the device that is not connected is not displayed, so unnecessary information is not presented to the user and operability is improved. It becomes possible to improve.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a system control method according to an embodiment of the present invention, Fig. 2 is a flowchart of a process for detecting a connection state, and Fig. 3 is a front view of an example of a display of a device menu as a result of detecting a connection state. Fig. 4 is a block diagram showing the configuration of a conventional system control method, Fig. 5 is a detailed front view of the remote control transmitter shown in Figs. 1 and 4, and Fig. 6 is a device menu in the conventional example. FIG. 7 is a front view of the function menu character pattern screen of the television, and FIG. 8 is a front view of the function menu character pattern screen of the VTR. 2...Television receiver, 2-1...Distributor, 2-2...Tuner, 2-3...ViF, 2-
4...Tuning selection section, 2-5...Signal processing section, 2-6...
...Switching section, 2-7...Cathode ray tube, 2-8...Control signal generation section, 2-9...Signal switching section, 2-10...
...Remote control amplifier, 2-11...Waveform shaping, 2-
12...Code decoding section, 2-13...Character generation section, 2-14...Memory, 3...Remote control transmitting section, 4...Video tape recorder, 4-1...Distributor, 4-2... Chiyuna, 4-3...ViF, 4
-4... Signal processing unit, 4-5... Recording processing unit, 4
-6... Recording head, 4-7... Tuning section, 4-8
...Synthesizer, 4-9...Signal switching section, 4-10...
...Reproduction processing section, 4-11...Reproduction head, 4-1
2...Control signal generation section.

Claims (1)

[Claims] 1. In a system control device consisting of a television receiver and equipment connected to the television receiver, generating a character pattern signal to the television receiver indicating the operation content necessary for the system component equipment. A character pattern generating section and a synthesizing means for synthesizing the character pattern signal with a display video signal are provided, and the output signal of the synthesizing means is displayed on the cathode ray tube screen of the television receiver. means for selecting a character pattern, and a bidirectional bus line for controlling each device using the selected character pattern, and turning on the power to the device when the television receiver is turned on. A system control device comprising: means for checking the connection state of each device via the bidirectional bus line; and means for displaying character patterns of only connected devices on the cathode ray tube screen.