JPH10257399A - Television receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a television receiver by which outside temperature is displayed on a television screen. SOLUTION: Temperature information of a temperature sensor which is installed outdoor is converted into frequency by a V/F converter 3 and mixed with a television radio wave by a mixer 4, and the mixed radio wave is sent indoors. A low-pass filter 6 in the indoor television receiver separates the temperature information of the temperature sensor 2 and an F/V converter 8 converts the frequency temperature information into a voltage, then the voltage is converted into character information, and a display device 16 displays the character information, together with video information in the television radio wave.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a television apparatus for displaying image information of a received television wave on a display device.

[0002]

2. Description of the Related Art Conventionally, when knowing the outside air temperature, it is necessary to take out a thermometer outdoors or install the thermometer outdoors beforehand and check the temperature with a thermometer after a certain period of time. Therefore, the outside air temperature cannot be easily known indoors.

On the other hand, when the outside air temperature is to be known indoors by using a temperature sensor that electrically senses the temperature, the temperature sensor is installed outdoors and the cable of the temperature sensor is connected to an outer wall hole for an air conditioner or a television. It is conceivable to introduce the antenna into a room through an outer wall hole for an antenna, wire the antenna for a certain distance, convert the voltage output of the temperature sensor into temperature information by a voltage processing circuit, and display the temperature information.

However, the voltage of the temperature sensor is 100
When the cable is introduced into a room, the length of the cable is limited to several meters depending on the type of the cable in order to accurately bring the temperature information into the room. Therefore, a method of introducing a temperature sensor cable into a room through an outer wall hole for an air conditioner or a television antenna cannot be actually adopted. That is, it is necessary to provide the outer wall hole for the cable of the temperature sensor separately from the outer wall hole for the air conditioner or the television antenna.

In addition, even if the information of the temperature sensor is brought into a room, a dedicated display for displaying the temperature is required to convert the information into temperature information and display the temperature information. For example, when a temperature is displayed on a television device without providing a dedicated display for temperature display, it is necessary to convert the temperature information into character information, and when displaying the temperature on a television screen, It is necessary to synchronize with deflection scanning.
For this purpose, a synchronization processing circuit and a character generation circuit are separately required in the television device. Therefore, after purchasing the television set, it is almost impossible for a general user to display the outside air temperature on the television screen. Further, there is no television device capable of displaying the outside air temperature on a television screen.

[0006] The present invention has been made in view of the above points, and has as its object to provide a television apparatus capable of displaying the outside air temperature on a television screen.

[0007]

SUMMARY OF THE INVENTION In order to solve the above problems, the present invention relates to a television apparatus for displaying image information of a received television wave on a display device, wherein the temperature of a temperature sensor installed outdoors is detected. A television comprising: transmitting information together with a television signal to a room; converting temperature information of the temperature sensor into character information in the room; and displaying the character information together with image information of the television signal on a display device. Provide equipment.

The present invention also relates to a television apparatus for displaying video information of a received television wave on a display device, comprising: a temperature sensor; a voltage / frequency converting means for converting voltage information of the temperature sensor into a frequency; And an outdoor unit including means for mixing the voltage information converted to the frequency with the television wave, means for separating the voltage information converted to the mixed frequency and the television wave, and the voltage information converted to the frequency. Frequency / voltage conversion means for converting to voltage,
An indoor unit including means for converting the converted voltage to temperature information and converting the temperature information to text information, and means for displaying the text information on a display device together with video information of a television wave. Provided is a television device characterized by the following.

With these configurations, the outside air temperature can be easily known on an indoor television screen. Also, there is no need for special construction such as making a hole in the outer wall to know the outside air temperature.

In the present invention, the frequency for converting the voltage information is preferably equal to or less than half the frequency of the television wave. By setting in this manner, the voltage information converted into the frequency and the television wave can be reliably separated in the indoor unit. Therefore, it is possible to prevent noise caused by mixing the voltage information from being included in the television wave. Therefore, it is possible to reproduce the video information of the television wave without noise. At the same time, it is possible to prevent the television wave from affecting voltage information as temperature information.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic diagram showing one embodiment of a television device of the present invention. 1 in the figure
Indicates a television antenna installed on the roof of the house. A coaxial cable 2 is connected to the television antenna 1, and the coaxial cable 2 is connected to a television set 3 in the room via an outer wall hole for the television antenna. Also, outdoors, an outdoor unit 4 is connected to the coaxial cable 2.

As shown in FIG. 2, the outdoor unit 4 has a temperature sensor 5 installed so as to expose a temperature detecting section, and a voltage / frequency (V) for converting a voltage from the temperature sensor 5 into a frequency.
/ F) It is mainly composed of a converter 6 and a mixer 7 connected to the coaxial cable 2 and mixing a television signal passing through the coaxial cable 2 and a frequency signal obtained by converting a voltage from the temperature sensor 5. .

FIG. 3 is a detailed circuit diagram of the television device shown in FIG. In the figure, reference numeral 8 denotes a power supply for supplying a voltage. The power supply 8 is connected to the coaxial cable 2 and
It is connected to the duplexer 9. The splitter 9 has a frequency / voltage (F / V) converter 11 via a low-pass filter 10.
Is connected. The F / V converter 11 is connected to a control device (microcomputer) 12 that calculates a temperature from a voltage including temperature information and converts the temperature into character information.

On the other hand, a tuner 13 is connected to the duplexer 9, and a VIF / detector 14 is connected to the tuner 13. The VIF / detector 14 is connected to a sync separation circuit 15 and a video amplification circuit 16. The synchronization separation circuit 15 is connected to the deflection circuit 17. The video amplification circuit 16 is connected to the control device 12 and to the CRT 18, and the deflection circuit 17 is connected to the control device 12 and to a deflection yoke 19.

Next, the operation of the television apparatus of the present invention having the above configuration will be described. First, a voltage is supplied from the power supply 8 in the television set 3 to the coaxial cable 2 through the inductor L having a high impedance in high frequency. Here, although the power source impedance is originally low, the impedance is relatively high for television waves, so that there is no effect on television waves and power can be superimposed on the coaxial cable 2.

This power is supplied to each circuit (temperature sensor 5, V / F converter 6, mixer 7, etc.) of the outdoor unit 4 through the inductor L immediately before the mixer 7 of the outdoor unit 4. Also here, since the inductor L has a high impedance for television waves, there is no effect on television waves, and power can be taken out.

The temperature sensor 5 of the outdoor unit 4 is an element whose voltage changes in accordance with the outside air temperature. A voltage signal including temperature information detected by the temperature sensor 5 is output by the V / F converter 6 to, for example, about 50 kHz. Is converted to By setting the frequency to be converted to half or less of the frequency of the television wave, the television set (indoor unit) 3 can reliably separate the frequency signal containing the temperature information from the television wave. The frequency signal thus converted is mixed by the mixer 7 with a television wave transmitted by a coaxial cable.

The mixed frequency signal passes through the coaxial cable 2 together with the television wave, and is taken out by the duplexer 9 of the television set 3 in the room. The extracted frequency signal and television signal are separated by the low-pass filter 10 into a frequency signal and a television signal. That is, the television wave is eliminated by the low-pass filter 10 and only the frequency signal including the temperature information is output. The frequency signal including the temperature information is converted by the F / V converter 11 into a DC voltage signal. This DC voltage signal is input to control device 12.

The memory of the control device 12 stores data corresponding to the voltage of the temperature sensor 5 and the temperature in advance, and the DC voltage signal including the temperature information input to the control device 12 is converted into the temperature information. . Further, the control device 12 converts the temperature information into character information.

On the other hand, after the television wave is taken out by the splitter 9, the tuner 13 and the VIF / detection circuit 14
Is input to the synchronization separation circuit 15 via the. Synchronization separation is performed in the synchronization separation circuit 15, and the separated signal is input to the deflection circuit 17. The deflection circuit 17 controls a deflection yoke 19 for driving a CRT 18 based on the signals separated in synchronization.

The synchronization signal from the deflection circuit 17 is transmitted to the controller 12
The character information generated by the controller 12 is synchronized with the control of the deflection yoke 19 by the deflection circuit 17, that is, the deflection scanning. Then, the character information is sent from the control device 12 to the video amplification circuit 16 and the CRT 1
8 and the temperature information is displayed on the CRT 18. By doing so, the outside air temperature can be easily known on the indoor television screen.

FIG. 4 is a schematic view showing another embodiment of the television apparatus of the present invention. The case shown in FIG. 4 is a so-called CATV case. In the case of CATV, a coaxial cable (CATV cable) is wired directly into the room,
In the case of the present invention, a configuration is adopted in which the CATV cable 20 passes through the outdoor unit 4 having the temperature sensor 5, the V / F converter 6, and the mixer 7 immediately before entering the room. That is, as shown in FIG. 5, a configuration is adopted in which the CATV cable 20 is wired to the mixer 7 and the coaxial cable 21 is wired from the mixer 7 to the television set 3 in the room. The configurations of the outdoor unit 4 and the television set 3 are the same as those described above.

Next, the operation of the television apparatus of the present invention having the above-described configuration will be described. Also in this case, power is supplied to each circuit (the temperature sensor 5, the V / F converter 6, the mixer 7, etc.) of the outdoor unit 4 through the inductor L immediately before the mixer 7 of the outdoor unit 4. Also here, since the inductor L has a high impedance for television waves, there is no effect on television waves, and power can be taken out.

The voltage signal containing the temperature information detected by the temperature sensor 5 of the outdoor unit 4 is converted into a frequency by the V / F converter 6. The frequency signal thus converted is supplied to the mixer 7
Is mixed with the CATV electric wave transmitted by the CATV cable 20.

The mixed frequency signal passes through the coaxial cable 21 together with the CATV radio wave and passes through the TV set 3 in the room.
Are extracted by the duplexer 9. The operation until the extracted frequency signal is displayed on the television screen as character information of the temperature is the same as described above. Thereby, similarly to the above, even in the case of CATV, the outside air temperature can be easily known on the indoor television screen.

In the above embodiment, since the outdoor unit 4 is disposed near the television antenna, the outdoor unit 4 is easily exposed to direct sunlight. Therefore, it is preferable to take measures to protect the outdoor unit 4 from direct sunlight in order to operate the temperature sensor stably and sense the outside air temperature relatively averagely.

In the above embodiment, the case where the outside air temperature is displayed on the television screen has been described.
According to the present invention, the outside air temperature can be displayed on a TV door phone or a computer display.

[0028]

As described above, according to the television apparatus of the present invention, the outside air temperature can be displayed on the television screen without special construction for the outside air temperature, and the outside air temperature can be displayed indoors. Can be easily known.

[Brief description of the drawings]

FIG. 1 is a schematic diagram showing one embodiment of a television device of the present invention.

FIG. 2 is a schematic diagram showing an outdoor unit of the television device shown in FIG.

FIG. 3 is a circuit diagram illustrating details of the television device illustrated in FIG. 1;

FIG. 4 is a schematic diagram showing another embodiment of the television device of the present invention.

5 is a circuit diagram showing an outdoor unit of the television device shown in FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... TV antenna, 2, 21 ... Coaxial cable, 3 ... Television set, 4 ... Outdoor equipment, 5 ... Temperature sensor, 6 ...
V / F converter, 7: mixer, 8: power supply, 9: duplexer, 1
0: low-pass filter, 11: F / V converter, 12: control device, 13: tuner, 14: VIF / detector, 15
... Synchronization separation circuit, 16 ... Video amplification circuit, 17 ... Deflection circuit, 18 ... CRT, 19 ... Deflection yoke, 20 ... CAT
V.

Claims (3)

[Claims] 1. A television apparatus for displaying image information of a received television wave on a display device, comprising: transmitting temperature information of a temperature sensor installed outdoors to a room together with the television wave; A television apparatus, comprising: converting temperature information into character information; and displaying the character information together with video information of the television radio wave on a display device. 2. A television apparatus for displaying video information of a received television wave on a display device, comprising: a temperature sensor; voltage / frequency conversion means for converting voltage information of the temperature sensor into a frequency; An outdoor unit including means for mixing the converted voltage information with a television signal, means for separating the voltage information converted to a mixed frequency and the television signal, and converting the voltage information converted to the frequency to a voltage An indoor unit including frequency / voltage conversion means, means for converting the converted voltage into temperature information and converting the temperature information into text information, and means for displaying the text information on a display device together with video information of a television wave And a television device. 3. The television device according to claim 2, wherein a frequency at which the voltage information is converted is half or less of a frequency of the television wave.