JPH10336336A - Television signal processing method and television signal processor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To receive a DTMF signal while a viewer is absent and also to reduce power consumption at the time of a standby mode by receiving a DTMF signal through a public telephone line even when there is no power source supply to a main television signal processing means. SOLUTION: When power source supply to a television signal processing means 1 and a displaying means 6 is stopped and only when the receiving and accumulation of a DTMF signal are performed, a remote control receiving means 7 instructs a power supply means 8 to perform power supply only through a power line A and stops the supply of a power line B. Then, even when power is not supplied to the means 1 and 6 where there is no viewing of television programs, a DTMF signal can be received. Also, because the means 1 and 6 occupy most of power consumption of a television signal processor, then, a standby mode considerably reduces power consumption and also a DTMF signal is received.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication technology using a public telephone line, and more particularly, to a DTMF (Dual).
A television signal processing method having an information display function capable of transmitting information at a high level by transmitting information such as message text or coordinate data from a conventional general telephone capable of emitting a signal (Tone Matorix Frequency); It concerns the device.

[0002]

2. Description of the Related Art In recent years, even in general telephones, DTM
F signal can be emitted, and DTM
Many communication methods using the F signal have been proposed. Some of these systems have already been put to practical use.
For example, in a facsimile apparatus as disclosed in JP-A-07-162663, a message registered in advance is specified using a DTMF signal, and the message can be displayed on the receiver side. FIG. 10 shows a system configuration diagram of this technology.

In FIG. 10, a receiving means 21 is a DTMF
Upon receiving the signal, the decoding means 22 extracts the identification number of the message from the DTMF signal,
3 retrieves a message from the message correspondence table 24 based on the identification number, and the output means 25 displays the retrieved message on a liquid crystal screen or the like. In the message correspondence table 24, the identification number identified by the DTMF signal is associated with the message text stored in advance. With such a device, for example, a message can be transmitted by a simple operation for a simple business that does not require a call to a receiver every time.

Recently, DTMF as described above has been used.
A television signal processing device having a built-in communication function using a signal has also been proposed. The difference between this television signal processing apparatus and the facsimile apparatus described above is the difference in the output means. The output means of the facsimile apparatus is a liquid crystal screen having a small display area for monitoring transmission / reception status, or a facsimile output sheet. The output means of the television signal processing device is a cathode ray tube for displaying television signals, a liquid crystal display, or the like.
Therefore, the television signal processing device can see the message on the same screen watching the television signal, and if it is a simple task that does not need to call the receiver to the telephone mouth while watching the television, There is an advantage that a message can be transmitted by a simple operation.

[0005]

However, the television signal processing apparatus described in the prior art cannot receive a DTMF signal when the television signal processing apparatus is not used, that is, when the power is off. . In addition, since a DTMF signal can be received only while watching a television program, it is sometimes impossible to read a message based on the DTMF signal and even confirm the arrival of the message when not watching a television program.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a television signal received and processed by a television signal processing means and a DTMF signal received through a public telephone line. A portion effective as information is extracted from the DTMF signal, the extracted information is stored in memory means, and the information is converted into numerical data or other information as necessary, and the signal is superimposed on the television signal or Remote control receiving means for controlling display on the display means in place of the television signal or in addition to the television signal; and supplying power to at least the television signal processing means and the display means in common. 1 power line and the DTM
Power supply means having a second power supply line for supplying power to the means for processing the F signal, wherein the remote control receiving means includes a power supply through the first power supply line and the second power supply line of the power supply means. The present invention relates to a television signal processing device characterized by performing control of a supply operation,
Since the DTMF signal can be received even when power is not supplied to the main television signal processing means,
The DTMF signal can be received even when the viewer is away.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first invention of the present invention is to receive a DTMF signal through a public telephone line and a television signal which has been received and processed by a television signal processing means. A part effective as information is extracted, the extracted information is stored in a memory means, and the information is converted into numerical data or other information as necessary, and a signal is superimposed on the television signal or the television signal. Or a remote control receiving means for controlling display on the display means in addition to the television signal, and a first power supply line for supplying power to at least the television signal processing means and the display means Power supply means having a second power supply line for supplying power to the means for processing the DTMF signal; A receiving means for controlling a power supply operation of the power supply means via the first power supply line and the second power supply line; The means may be configured to have a standby mode state in which power is supplied only to the first power supply line, and a full operation mode state in which power is supplied to the first power supply line and the second power supply line. .

According to a second aspect of the present invention, in a television signal processing apparatus for receiving a DTMF signal from a public telephone line, a step of extracting and storing an effective portion as information from the DTMF signal received through the public telephone line, A step of detecting the state of the power supply operation of the power supply means, and a step of converting the information accumulated in the step into numerical data or other information as necessary according to the state of the power supply operation,
Superposing the converted information on a television signal, converting the converted information into a television signal, or displaying the converted information on a display means in addition to the television signal. Control whether the accumulated information is to be displayed on the display means in accordance with the state of.

According to a third aspect of the present invention, in a television signal processing apparatus for receiving a DTMF signal from a public telephone line, a step of extracting and storing an effective portion as information from the DTMF signal received through the public telephone line, A step of detecting the state of the power supply operation of the power supply means, and a step of converting the information accumulated in the step into numerical data or other information as necessary according to the state of the power supply operation,
A step of superimposing the converted information on the television signal, changing the information to the television signal, or displaying the converted information on the display means, and switching the power supply means from the standby mode state to the full operation mode state. Displaying the presence / absence of information accumulated at a point in time on a display means. Further, the television signal processing method may include a step of displaying the presence / absence of newly stored information on the display means instead of the presence / absence of stored information.

According to a fourth aspect of the present invention, a television signal received and processed by a television signal processing means and a DTMF signal through a public telephone line are received, and the received DTMF signal is used as information effective as information. The part is taken out, the taken out information is stored in the memory means, and the information is converted into numerical data or other information as necessary, and the signal is superimposed on the television signal or is changed into the television signal. Or a remote control receiving means for controlling display on a display means in addition to the television signal; a first power supply line for supplying power to at least the television signal processing means and the display means; Power supply means having a second power supply line for supplying power to the signal processing means; A remote control receiving means for controlling power supply operation of the power supply means via the first power supply line and the second power supply line; The means relates to a television signal processing device, which emits light in accordance with the state of power supply operation of the power supply means.

When the light emitting device is in the standby mode, the DTMF
It may blink when a signal is received.

According to a fifth aspect of the present invention, there is provided a television signal processing apparatus for receiving a DTMF signal from a public telephone line, wherein the step of detecting that the power supply is in the standby mode and causing the light emitting means to emit light includes the steps of: DTM from telephone line
In a television signal processing device that receives an F signal,
Extracting the effective portion as information from the DTMF signal received through the public telephone line and storing the information; detecting the state of the power supply operation of the power supply means; and storing the information in the step according to the state of the power supply operation. Converting the information into numerical data or other information as necessary, and displaying the converted information on a display means by superimposing the information on a television signal, changing the information into a television signal, or adding to the television signal. And a television signal processing method comprising the steps of: Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 9.

(Embodiment 1) In this embodiment, a television signal processing apparatus and a television signal processing method according to an embodiment of the first and second inventions will be described with reference to FIG.

In FIG. 1, television signal processing means 1
Performs an operation of selecting and receiving a television signal and reproducing it. The DTMF receiving means 2 functions to receive a DTMF signal through a public telephone line.
The information extracting means 3 has an operation of extracting a portion effective as information from the DTMF signal. The memory means 4 serves to accumulate the output of the information extracting means. The information conversion means 5 serves to convert the output of the memory means 4 into numerical data and other information as required. The display means 6 superimposes the output of the information conversion means 5 on the output of the television signal processing means 1, changes the output to the output of the television signal processing means 1, or displays the output of the television signal processing means 1. Perform the action.

The power supply means 8 supplies power via a power supply line A commonly connected to the DTFM receiving means 2, the information extracting means 3, the memory means 4, and the information converting means 5. The power supply unit 8 is supplied with power by a power supply line B that is commonly connected to the television signal processing unit 1 and the display unit 6. The power supply means 8 performs an operation of supplying power so that all means connected by the power supply line A and all means such as the television signal processing means 1 and the display means 6 connected by the power supply line B can operate. One having at least two types of operation modes, ie, an all operation mode to be performed, and a standby mode in which at least the DTMF receiving means 2, the information retrieving means 3, the memory means 4, and the information converting means 5 connected to the power supply line A can be operated It is.

The remote control receiving means 7 receives information from the outside, and receives a television signal processing means 1, a DTMF receiving means 2, an information extracting means 3, a memory means 4, an information converting means 5, a display means 6, a power supply means. 8 for outputting or inputting a signal for controlling the operation of each means. The power supply means 8 performs an operation of switching between the full operation mode and the standby mode and controlling each means.

The operation of the television signal processing device configured as described above will be described.

The television signal processing means 1, the remote control receiving means 7, and the display means 6 perform almost the same operations as a general television receiver. For example, when watching terrestrial broadcasting,
A signal for selecting a desired channel is sent from the remote control receiving means 7 to the television signal processing means 1. The television signal processing means 1 receives a signal from the remote control receiving means,
Receives the desired channel, demodulates the NTSC signal,
After performing a dimensional YC separation process or the like, the image data is converted into R, G, and B signals and output. The display means 6 switches between the output of the television signal processing means 1 and the on-screen information from the remote control receiving means 7 and outputs the information to a CRT or a liquid crystal display.

DTMF receiving means 2 in a portion surrounded by a dotted line,
Information extracting means 3, memory means 4, information converting means 5,
FIG. 2 shows a hardware configuration of the remote control receiving means 7.

FIG. 2 is basically the same as a general-purpose computer system. The remote control receiving means 7 is different from a general-purpose computer system, but is a remote control input device 1.
The CPU 16 (central processing unit) having the CPU 5 will be described.

In FIG. 2, VRAM 11 has the function of storing display data. The main storage device 12 has a function of a nonvolatile memory for storing a program. The auxiliary storage device 13 has the function of a non-volatile memory for storing programs and data. The DTMF receiver 14 is a DTM
It has the function of receiving the F signal and outputting it to the auxiliary storage device 13. The input device 15 has an operation of transferring, for example, control information input from the outside to the CPU 16 by remote control. The CPU 16 has an operation of executing a program loaded from the main storage device 12 based on the control information input from the input device 15.

FIG. 3 shows a flowchart of the operation of the television signal processing apparatus of the present invention.

In step a1, the DTMF receiving means 2 waits for a line connection request (an incoming call) in the same manner as a normal telephone, and connects the line when there is a connection request. The procedure for connecting the line is the same as that of a general device connected to a conventional public telephone line such as an answering machine or a facsimile machine.

At step a2, the DTMF receiving means 2 outputs a message such as "Please send a message" from the television signal processing device by voice to the connected line. Such a voice response has already been used in general equipment connected to a conventional public telephone line, such as an answering machine or a facsimile machine.

In step a3, the DTMF receiving means 2 inputs the DTMF input on the transmitting side through the telephone line.
Detect signal. The method of detecting a DTMF signal has already been established, and is the same as a general device connected to a conventional public telephone line such as an answering machine or a facsimile machine. For example, if the sender presses "2" from a push-button telephone, a DTMF signal corresponding to this is transmitted, and the DTMF signal can be detected on the receiving side.

In step a4, it is determined whether or not the detected DTMF signal conforms to a predetermined procedure for inputting a message such as a symbol string in a predetermined range or an effective number of digits. If the DTMF is input according to the input procedure determined here, the process proceeds to step a6, where a response message indicating that the DTMF signal is valid is returned and the line is disconnected. If the DTMF signal is not valid, step a
Proceed to 5 to return a response message indicating that it is not valid, and disconnect the line.

In step a7, the information extracting means 3 extracts valid information from the DTMF signal. For example, when the DTMF signal “13 ##” is input, the last “##” is determined in advance to mean the end of the message input, and the remaining “13” is extracted as the input information.

At step a8, the information retrieved by the information retrieval means 3 is stored by the memory means 4.

At step a9, it is determined whether the power supply means 8 is in the full operation mode. When the operation mode is the full operation mode, the process proceeds to step a10. If it is in the standby mode, the process ends. In step a10, the information conversion means 5 converts the information stored in the memory means 4 into another information format. For example, information "13" is converted into a corresponding message based on a message conversion table in which frequently used message texts are assigned message numbers corresponding to one-to-one as shown in FIG. "I'll be late" and "3" will be converted to "I don't need to eat."

In step a11, the display means 6 displays information. In other words, "I don't need to eat late" is displayed. FIG. 5 shows a display example of the display means 6. In the display example of FIG. 5, the message “I don't need to eat late” is received at the latest time 12:07, and “I arrived safely”.
The previous message "I'm going home now" is also displayed. The time display can also be set to display the date. At this time, the display means 6 displays a message "I don't need to eat late", superimposing, changing, or adding to the signal output from the television signal processing means 1. For example, the term “overlap” means that a message is displayed in a part below the display area while displaying the output of the television signal processing means. The term "change" means that the image display of the small screen is stopped by a television signal processing device having a two-screen display function or the like, and a message is displayed instead. Further, "addition" means that the output signal of the television signal processing means 1 is superimposed and a message is displayed.

Next, the operation of the remote control receiving means 7 and the power supply means 8 will be described. First, the remote control receiving unit 7 transfers, for example, channel selection information, image quality correction setting, and data such as volume to the television signal processing unit 1.
The MF receiver 2 is set to wait for reception or not to receive, and the power supply 8 is set to various settings for each unit, such as switching between an entire operation mode and a standby mode for the television signal processor. Do. The power supply to the television signal processing means 1 and the display means 6 is stopped, and the DTM
When only receiving and storing the F signal, the remote control receiving means 7 sends data to the power supply means 8 so as to supply power only to the power supply line A. That is, the standby mode is set. The power supply means 8 stops the power supply to the power supply line B, and
Only supply power.

The control operation of the power supply means 8 described above is shown in FIG.
Are controlled by the program of the main storage device 12 indicated by.

With the above configuration and control method, power is not supplied to the television signal processing means 1 and the display means 6 which are the main processing means as the television receiver when the television program is not viewed. Even D
TMF signals can be received, and DTMF signals can be received even when a television program is not being viewed. Further, the power consumption of the television signal processing device is mostly occupied by the television signal processing means 1 and the display means 6. Therefore, the DTMF signal can be received while the power consumption is significantly reduced by the standby mode as described above.

(Embodiment 2) As an example of the operation of the third invention of the present invention, a television signal processing method according to an embodiment of the third invention of FIG. 6 will be described. Here, a description will be given with reference to a flowchart. Note that the system configuration and the hardware configuration of the second embodiment of the present invention are the same as those of the first embodiment described in the first invention, and thus the description thereof will be omitted.

FIG. 6 is a flowchart showing the operation of the television signal processing apparatus according to the embodiment of the present invention.

Here, steps b1 to b8
Is the same as the operation from step a1 to step a8 shown in FIG.

At step b9, it is determined whether or not the power supply means 8 is in the full operation mode. If the operation mode is the full operation mode, the process proceeds to step b10. If the operation mode is the standby mode instead of the full operation mode, the process is terminated.

In step a10, the information conversion means 5 converts the information stored in the memory means 4 into another information. For example, information "13" is converted into a corresponding message based on a message conversion table in which frequently used message texts are assigned message numbers corresponding to one-to-one as shown in FIG. "I'll be late" and "3" will be converted to "I don't need to eat."

In step b11, when the state of the power supply means 8 is a step for the first time after a series of processing is switched from the standby mode to the full operation mode, the process proceeds to step b12, and otherwise, the process proceeds to step b13. In step b12, only whether or not the stored information is present is output as a message. At this time, step b13
Displays, for example, a telop such as "there is a message" superimposed or changed on or added to the signal output by the television signal processing means 1.

Except when the series of processing is not the first time after switching from the standby mode to the full operation mode, the output of the information converting means 5 is superimposed on or changed by the signal output by the television signal processing means 1, or In addition, display.

That is, the standby mode has been set for a while, and only the presence or absence of a message is first transmitted to the television viewer when the mode is first switched from the standby mode to the full operation mode. Next, if the television viewer wants to see the contents of the message in detail, the remote control receiving means 7
And the output of the information conversion means 5 is displayed on the display means 6.
The signal is superimposed, changed, or added to the signal output from the television signal processing means 1.

FIG. 5 shows a display example of the display means 6. In the display example of FIG. 5, the message “I don't need to eat late” is received at the latest time 12:07, and the previous messages “I have arrived safely” and “I will return now” are also displayed at the same time.

As described above, the operation described above is controlled by the program of the main storage device 12 shown in FIG.

[0044] Thereby, the DTMF signal can be received even when the user is not watching the television, and the DTMF signal can be received even when the user is away.
MF signals can be received. Further, when shifting from the standby mode to the all operation mode, the presence or absence of a message can be quickly confirmed.

(Embodiment 3) Next, referring to FIG.
An example of a television signal processing method according to an embodiment of the present invention will be described. In this embodiment, a flowchart of the operation is shown. Since the system configuration and the hardware configuration of the third invention are the same as the configuration of the embodiment described in the first invention, the description is omitted here.

FIG. 7 shows a flowchart of the operation of the television signal processing device of the present invention.

Steps c1 to c7 are the same as the operations of steps a1 to a7 shown in FIG. 3 and will not be described.

At step c8, the information retrieved by the information retrieval means 3 and the retrieval time are stored in the memory means 4.
To accumulate. In step c9, it is determined whether the operation mode is the full operation mode. Step c10 for all operation modes
Proceed to. If it is in the standby mode, the process ends.

At step c10, the information conversion means 5 converts the information stored in the memory means 4 into another information. For example, information "13" is converted into a corresponding message based on a message conversion table in which frequently used message texts are assigned message numbers corresponding to one-to-one as shown in FIG. "I'll be late" and "3" will be converted to "I don't need to eat."

In step c11, when the power supply means 8 switches the series of processing from the standby mode to the full operation mode for the first time, the process proceeds to step c12, otherwise proceeds to step c13. In step c12, the time of the information stored in the memory means 4 is compared with the time at which the operation mode is switched from the standby mode to the full operation mode, and only whether or not there is information stored in the standby mode is output as a message. At this time, in step c13, a telop such as "there is a new message" is superimposed, changed, or added to the signal output from the television signal processing means 1. Except when the series of processing is not the first time after switching from the standby mode to the full operation mode, the output of the information conversion means 5 is superimposed on, changed, or added to the signal output by the television signal processing means 1. I do.

That is, the standby mode has been set for a while, and when the mode is first switched from the standby mode to the full operation mode, only the presence or absence of a new message is first transmitted to the television viewer. For example, if the standby mode is set at 11:00 and the entire operation mode is set at 13:00, and if the information as shown in FIG. 5 is received, a message “I don't want to eat late” is sent at time 1.
Since the message was received at 2:07, a message “There is a new message.” Is displayed. Next, if the television viewer wants to view the contents of the message in detail, the request is made by the remote control receiving means 7, and the output of the information conversion means 5 is converted to the signal output by the television signal processing means 1 by the display means 6. Overlap, change, or add.
At this time, the new message and the previous message "I'm safe now" and "I'm going back now" are also displayed.

In the display, the background of the message, the color of the characters, and the like may be changed so that the new message can be recognized. Also, the previous message need not be displayed.

The operation described above is controlled by the program of the main memory 12 shown in FIG.

Thus, DTMF can be received even when the user is not watching television, and DTMF can be received even when the user is away.
Can be received. Further, when shifting from the standby mode to the all operation mode, the presence or absence of a new message can be quickly confirmed.

(Embodiment 4) A television signal processing method and a television signal processing apparatus according to a fifth embodiment of the present invention will be described. The configuration of the present embodiment will be described as a block diagram in FIG.

In FIG. 8, the television signal processing means 1
Performs an operation of selecting and receiving a television signal and reproducing it. The DTMF receiving means 2 functions to receive a DTMF signal through a public telephone line.
The information extracting means 3 has an operation of extracting a portion effective as information from the DTMF signal. The memory means 4 serves to accumulate the output of the information extracting means. The information conversion means 5 serves to convert the output of the memory means 4 into numerical data and other information as required. The display means 6 superimposes the output of the information conversion means 5 on the output of the television signal processing means 1, changes the output to the output of the television signal processing means 1, or displays the output of the television signal processing means 1. Perform the action. The power supply means 8 includes all operation modes for supplying power capable of operating all means, and at least DTM.
It has a standby mode in which the F receiving means 2, the information extracting means 3, the memory means 4, and the information converting means 5 can operate. The above configuration is the same as the configuration described in the first embodiment of the present invention, and the operation of each is also the same.

The light emitting means 9 has a function of emitting light when the DTMF signal can be received and blinking when a DTMF signal is received in the standby mode. The remote control receiving means 7 performs an operation of switching between the full operation mode and the standby mode and controlling each means.

The operation of the television signal processing device configured as described above will be described.

The television signal processing means 1, the remote control receiving means 7, and the display means 6 perform almost the same operations as a general television receiver. For example, when watching terrestrial broadcasting,
A signal for selecting a desired channel is sent from the remote control receiving means 7 to the television signal processing means 1. The television signal processing means 1 receives a signal from the remote control receiving means,
Receives the desired channel, demodulates the NTSC signal,
After performing a dimensional YC separation process or the like, the image data is converted into R, G, B signals and output. The display means 6 switches between the output of the television signal processing means 1 and the on-screen information from the remote control receiving means 7 and outputs the information to a CRT or a liquid crystal display.

The DTMF receiving means 2 in a portion surrounded by a dotted line,
Information extracting means 3, memory means 4, information converting means 5,
FIG. 2 shows a hardware configuration of the remote control receiving means 7.

FIG. 2 is basically the same as a general-purpose computer system. The remote control receiving means 7 is different from a general-purpose computer system, but is a remote control input device 1.
The CPU 16 (central processing unit) having the CPU 5 will be described.

In FIG. 2, the VRAM 11 has the function of storing display data. The main storage device 12 has a function of a nonvolatile memory for storing a program. The auxiliary storage device 13 has the function of a non-volatile memory for storing programs and data. The modem 14 has a function of receiving the DTMF signal and outputting it to the auxiliary storage device 13. The input device 15 receives, for example, the inputted control information by remote control.
It has the function of transferring to the PU16. The CPU 16 controls the main storage device 12 based on the control information input from the input device 15.
This has the effect of executing the program loaded from the.

FIG. 9 shows a flowchart of the operation of the television signal processing device of the present invention.

At step d1, first, when the remote control receiving means 7 is set to be able to receive the DTMF signal,
At step d2, the light emitting means 9 is turned on. For those who are blind, a voice message "Message standby mode" may be output when the standby mode is set.

In step d3, the DTMF receiving means 2 waits for a line connection request (a call is received) in the same manner as a normal telephone, and connects the line when there is a connection request. The procedure for connecting the line is the same as that of a general device connected to a conventional public telephone line such as an answering machine or a facsimile machine.

At step d4, the DTMF receiving means 2 outputs a message such as "Please send a message" from the television signal processing device by voice to the connected line. Such a voice response has already been used in general equipment connected to a conventional public telephone line, such as an answering machine or a facsimile machine.

At step d5, the DTMF receiving means 2 inputs the DTMF input on the transmitting side through the telephone line.
Detect signal. The method of detecting a DTMF signal has already been established, and is the same as a general device connected to a conventional public telephone line such as an answering machine or a facsimile machine. For example, if the sender presses "2" from a push-button telephone, a DTMF signal corresponding to this is transmitted, and the DTMF signal can be detected on the receiving side.

At step d6, it is determined whether or not the detected DTMF signal conforms to a predetermined procedure for message input such as a symbol string in a predetermined range or an effective number of digits. If the DTMF has been input according to the input procedure determined here, the process proceeds to step d6, where a response message indicating that the DTMF signal is valid is returned and the line is disconnected. If the DTMF signal is not valid, step d
Proceed to 7 to return a response message indicating that it is not valid, and disconnect the line.

In step d9, when a newly arrived DTMF signal is received during the standby mode, the light emitting means 9 is turned on and off. This makes it possible to visually determine whether new information has arrived even in the standby mode. In addition,
For the blind, a voice message stating "Message arrived" may be output.

In step d10, the information extracting means 3
To extract valid information from the DTMF signal. For example, when the DTMF signal “13 ##” is input, the last “##” is determined in advance to mean the end of the message input, and the remaining “13” is extracted as the input information.

At step d11, the information extracting means 3
The information fetched by the above is stored by the memory means 4.

At step d12, it is determined whether or not the operation mode is the full operation mode. When the operation mode is the full operation mode, the process proceeds to step d13. If it is in the standby mode, the process ends.

At step d13, the information conversion means 5 converts the information stored in the memory means 4 into another information. For example, information "13" is converted into a corresponding message based on a message conversion table in which frequently used message texts are assigned message numbers corresponding to one-to-one as shown in FIG. "I'll be late" and "3" will be converted to "I don't need to eat."

In step d14, the process proceeds to step d15 when the series of processes is switched from the standby mode to the full operation mode for the first time, and otherwise, the process proceeds to step d1.
Proceed to 6. In step d15, the time of the information stored in the memory means 4 is compared with the time at which the operation mode is switched from the standby mode to the full operation mode, and only whether or not there is information stored in the standby mode is output as a message. At this time, in step d16, for example, a telop such as "there is a new message" is displayed so as to overlap, change, or add to the signal output from the television signal processing means 1. Except when the series of processing is not the first time after switching from the standby mode to the full operation mode, the output of the information conversion means 5 is superimposed on, changed, or added to the signal output by the television signal processing means 1. I do.

That is, the standby mode has been set for a while, and at the time when the operation mode is first switched from the standby mode to the full operation mode, only the presence or absence of a new message is first transmitted to the television viewer. For example, if the standby mode is set at 11:00 and the entire operation mode is set at 13:00, and if the information as shown in FIG. 5 is received, a message “I don't want to eat late” is sent at time 1.
Since the message was received at 2:07, a message “There is a new message.” Is displayed.

Next, if the television viewer wants to see the contents of the message in detail, he or she makes a request with the remote control receiving means 7,
The display means 6 superimposes, changes, or displays the output of the information conversion means 5 on the signal output by the television signal processing means 1. At this time, the new message and the previous message "I'm safe now" and "I'm going back now" are also displayed.

In displaying the message, the background of the message or the color of the character may be changed so that the new message can be recognized. Also, the previous message need not be displayed.

The operation described above is controlled by the program of the main storage device 12 shown in FIG.

Here, the operations of the remote control receiving means 7 and the power supply means 8 are the same as those of the first invention, and the description is omitted.

With the above-described arrangement, DTMF can be received even when the user is not watching television, and DTMF can be received even when the user is away. Further, when shifting from the standby mode to the all operation mode, the presence or absence of a new message can be quickly confirmed. Further, even in the standby mode, the presence or absence of a new message can be confirmed.

[0081]

As described above, according to the first aspect of the present invention, even when the television is not being watched, that is, even when the power is not supplied to the main television signal processing means, the D signal can be obtained.
Since the TMF signal can be received, the DTMF signal can be received even when the viewer is away.

Further, since the power consumption of the television signal processing apparatus is mostly occupied by the television signal processing means and the display means, the power consumption of the DTMF signal is significantly reduced in the above-mentioned standby mode. Reception is possible.

According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to quickly confirm the presence or absence of a message when shifting from the standby mode to the full operation mode.

According to the third aspect of the present invention, in addition to the effects of the first and second aspects of the present invention, it is possible to quickly confirm the presence or absence of a new message when shifting from the standby mode to the full operation mode. become.

According to the fourth aspect of the present invention, the first and second
In addition to the effects of the third aspect of the present invention, the presence or absence of a new message can be confirmed even in the standby mode.

[Brief description of the drawings]

FIG. 1 is a block diagram of a television signal processing device according to a first embodiment of the present invention.

FIG. 2 is a hardware configuration diagram of a dotted line part in FIG. 1;

FIG. 3 is a flowchart of an operation according to the first embodiment of the present invention;

FIG. 4 is a diagram showing a message conversion table used in the first embodiment of the present invention;

FIG. 5 is a view showing a screen display example according to the first embodiment of the present invention;

FIG. 6 is a flowchart of an operation according to the second embodiment of the present invention.

FIG. 7 is a flowchart of the operation of the third embodiment of the present invention.

FIG. 8 is a block diagram of a television signal processing device according to a fourth embodiment of the present invention.

FIG. 9 is a flowchart of an operation according to the fourth embodiment of the present invention.

FIG. 10 is a system configuration diagram of a conventional example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Television signal processing means 2 DTMF receiving means 3 Information extraction means 4 Memory 5 Information conversion means 6 Display means 7 Remote control receiving means 8 Power supply means

Claims (8)

[Claims] 1. A television signal which is received and processed by a television signal processing means and a DTMF signal through a public telephone line, and an effective portion is extracted from the received DTMF signal as information, and the extracted information is extracted. Is stored in a memory means, and a signal obtained by converting the information into numerical data or other information as necessary is superimposed on the television signal, changed to the television signal, or added to the television signal. Remote control receiving means for controlling display on the display means, a first power supply line for supplying power to at least the television signal processing means and the display means,
Power supply means having a second power supply line for supplying power to the means for processing the MF signal, wherein the remote control receiving means includes a power supply via the first power supply line and the second power supply line of the power supply means A television signal processing device for controlling a supply operation. 2. The power supply means has a standby mode in which power is supplied only to a first power supply line, and a full operation mode in which power is supplied to the first power supply line and the second power supply line. The television signal processing device according to claim 1. 3. A television signal processing apparatus for receiving a DTMF signal from a public telephone line, a process of extracting and storing information effective portions from the DTMF signal received through the public telephone line, and a power supply operation of the power supply means. A step of detecting a state, a step of converting information accumulated in the step according to the state of the power supply operation into numerical data or other information as necessary, and superimposing the converted information on a television signal. Or a process of displaying on a display means instead of or in addition to the television signal. 4. A television signal processing apparatus for receiving a DTMF signal from a public telephone line, a step of extracting and storing an effective part as information from the DTMF signal received through the public telephone line, and a step of power supply operation of the power supply means. A step of detecting a state, a step of converting information accumulated in the step according to the state of the power supply operation into numerical data or other information as necessary, and superimposing the converted information on a television signal. Or the process of displaying on the display means instead of or in addition to the television signal, and the presence or absence of the information accumulated at the time when the power supply means is switched from the standby mode state to the full operation mode state. And displaying the television signal. 5. A television signal processing apparatus for receiving a DTMF signal from a public telephone line, a step of extracting and storing information effective portions from the DTMF signal received through the public telephone line, and a step of power supply operation of the power supply means. A step of detecting a state, a step of converting information accumulated in the step according to the state of the power supply operation into numerical data or other information as necessary, and superimposing the converted information on a television signal. Or a process of displaying on the display means instead of or in addition to the television signal, and displaying the presence or absence of newly stored information when the power supply means switches from the standby mode state to the full operation mode state. A television signal processing method comprising the steps of: 6. A television signal which is received and processed by a television signal processing means and a DTMF signal through a public telephone line, and an effective portion is extracted from the received DTMF signal as information, and the extracted information is extracted. Is stored in a memory means, and a signal obtained by converting the information into numerical data or other information as necessary is superimposed on the television signal, changed to the television signal, or added to the television signal. Remote control receiving means for controlling display on the display means, a first power supply line for supplying power to at least the television signal processing means and the display means,
Power supply means having a second power supply line for supplying power to the means for processing the MF signal; and light-emitting means connected to the power supply means and the remote control reception means, wherein the remote control reception means comprises A television for controlling the operation of power supply via a first power supply line and the second power supply line, wherein the light emitting means emits light in accordance with the state of the power supply operation of the power supply means; John signal processor. 7. The light emitting device according to claim 1, wherein said light emitting device is in a standby mode.
7. The television signal processing device according to claim 6, wherein the television signal blinks when an F signal is received. 8. A television signal processing apparatus for receiving a DTMF signal from a public telephone line, a step of detecting that the power supply unit is in a standby mode and causing the light emitting unit to emit light, and receiving the DTMF signal from the public telephone line. In a television signal processing apparatus, a process of extracting and storing valid portions as information from a DTMF signal received through a public telephone line, a process of detecting a power supply operation state of a power supply unit, and a power supply operation state A step of converting the information accumulated in the step into numerical data or other information as necessary, and superimposing the converted information on a television signal, or converting it into a television signal, or A television signal processing method comprising the steps of: