JP2697777B2 - Broadcast receiver - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION This invention, by automatically searching another broadcasting wave when reduced received signal strength of the satellite, to a broadcast receiving apparatus for diagnosing the cause of decrease of the received signal .

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a conventional broadcast receiving apparatus for satellite broadcasting or the like. In the figure, 1 is a receiving antenna, 2 is a receiving device for receiving a signal from the antenna 1,
19 is a receiver, 18 is a speaker, 20 is a signal strength detector of the received radio wave, 21 is a signal strength display device, and 22 is a tuning button.

[0003] Since the conventional broadcast receiving apparatus is configured as described above, if the signal strength is reduced at the time of receiving a broadcast signal, the user can manually operate the tuning button 22 to receive another broadcast wave. After confirming this with the receiver 19, the speaker 18, the signal strength display device 21, or the like, it is determined whether the cause of the decrease in signal strength is on the specific broadcast station side or the receiver side.

[0004]

In the conventional broadcast receiving apparatus, since the channel selection button 22 is operated by the user's hand as described above, it takes time and hassle to diagnose a decrease in signal strength. . In addition, these operations and the receiver 19, the speaker 18, or the signal strength display 21
It was difficult for ordinary users to make a diagnosis.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and automatically checks a signal strength of another broadcast wave by automatically performing a tuning operation. It is an object of the present invention to obtain a broadcast receiving apparatus capable of diagnosing whether a broadcast is located on a specific broadcast station side, on a receiving apparatus side, or by satellite eclipse .

[0006]

A broadcast receiving apparatus according to the present invention comprises: a receiving apparatus for receiving a broadcast wave;
Therefore, signal strength detection to detect the signal strength of the received radio wave
Device, signal strength detected by this signal strength detection device
Receiving state determining means for determining the receiving state by
When the reception status is judged to be poor by the
Tuning device and other broadcasting stations to tune to the receiving device
The time of satellite eclipse when the reception condition of
Satellite eclipse time zone judging means for judging, the above-mentioned reception state judging means
Reception is not possible based on the judgment result of the satellite eclipse time zone judgment means.
Reception diagnostic means for diagnosing a good cause, and
It is provided with a display device for displaying a diagnosis result .

[0007]

According to the present invention, the receiving condition is determined based on the detection signal of the signal strength detecting device, and when it is determined that the receiving condition is not good, another broadcasting station is automatically selected.
Similarly, determine the reception status, and when the result is not good
Determines whether it is during the time of satellite eclipse and based on these results.
You have to diagnose the cause of the poor reception to.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of a broadcast receiving apparatus according to the present invention. In FIG. 1, 1 is a receiving antenna, 2 is a receiving device that processes a signal received from the antenna 1, 3 is a signal strength detecting device that detects the strength of the received signal, and 4 is a receiving state judging device based on the signal strength. Receiving state determining means,
Reference numeral 5 denotes a channel selection device for selecting another broadcast station, 6 denotes a reception diagnosis means for diagnosing the cause of the reception failure based on the reception state of each broadcast station, and 7 denotes a display means for notifying the user of the diagnosis result.

Next, the operation of the satellite broadcasting receiver will be described with reference to FIG.

First, a broadcast wave is received by a receiving antenna 1 and signal processing is performed by a receiving device 2. The signal strength is detected by the signal strength detection device 3 and the reception state determination means 4 determines whether the signal level is good or not. As a result, if the reception condition is good, the signal strength detection and the reception condition determination are repeated.
Select another broadcast station. Then, the signal strength is similarly detected by the signal strength detection device 3 and the reception state determination means 4 determines whether the reception state is good.

Here, if the reception is good, the reception diagnosis means 6 diagnoses that the cause is on the side of the broadcasting station which has been judged as the reception failure. If the reception conditions of all the broadcasting stations are not good, it is diagnosed that the cause of the poor reception condition is satellite broadcasting, weather condition, antenna, or satellite eclipse. These diagnostic results are displayed by the display means 7.

FIG. 3 is a flowchart of a program used for reception diagnosis. The program flow will be described with reference to FIG.

First, the signal strength of the signal-processed broadcast radio wave is detected in step 8, and the reception state is determined in step 9 to determine whether or not the signal level is good. As a result, if the reception state is bad, the loop consisting of steps 8 and 9 is repeated.
At 0, another broadcasting station is selected. Then, it is determined in step 11 whether or not the reception status of the other broadcast station is good. If the result is that the radio waves of the other broadcast station can be received well, the cause is determined by the broadcast station which has just been determined to be poorly received. A diagnostic result indicating that there is is displayed in step 13.

If the reception conditions of all the broadcasting stations are not good, it is determined in step 14 whether or not it is a time zone for satellite eclipse.
If it is not during the time of satellite eclipse , it is diagnosed that the cause of poor reception is due to satellite broadcasting, weather conditions, and antenna.
The result of the disconnection is displayed in step 16 and the
In step 15 , a diagnostic result indicating that the cause of the poor reception condition is caused by satellite eclipse is displayed in step 15 . These diagnostic results can be displayed by sound or vibration using a speaker or the like, or displayed by characters or symbols on a fluorescent tube, liquid crystal panel, or receiver screen.

[0015] In addition, satellite diet time zone judgment to determine whether the satellite diet, or to store the satellite diet time in memory, or to calculate the satellite food from orbit calculation of astronomical time, the user satellite diet it is possible by a method such as storing the time
Than it is.

[0016]

As described above, according to the present invention, there is provided a signal strength detecting device for automatically selecting another broadcast station when the signal strength of the broadcast receiving device decreases and determining the goodness of the signal strength.
If the judgment is not good, it is judged whether it is the time zone for satellite eclipse.
It is configured to diagnose the cause of the decrease in signal strength based on these results , so that the operation can be performed without complicating the operation, avoiding the error of the diagnosis by the user, and automatically performing the appropriate diagnosis. .

[Brief description of the drawings]

FIG. 1 is a block diagram of an embodiment of a broadcast receiving apparatus according to the present invention.

FIG. 2 is a block diagram of a conventional broadcast receiving device.

FIG. 3 is a flowchart showing the operation of one embodiment of the broadcast receiving apparatus according to the present invention .

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Receiving antenna 2 Receiving device 3 Signal strength detecting device 4 Receiving state judging means 5 Tuning device 6 Receiving diagnostic means 7 Display means

Claims (1)

(57) [Claims] 1. A receiving apparatus for receiving a broadcast wave, a signal strength detecting apparatus for detecting a signal strength of a radio wave received by the receiving apparatus, and a receiving state for determining a receiving state based on the signal strength detected by the signal strength detecting apparatus. Judgment means,
At the time of the reception failure judgment by the reception state judgment means , the other
A tuning device that tunes the transmitting station and causes the receiving device to receive it,
Is the time of satellite eclipse when the reception condition of the received radio wave of the broadcasting station is poor
Satellite eclipse time zone determining means for determining whether or not
On the basis of the judgment results of the setting means and the satellite eclipse time zone judgment means
Reception diagnosing means for diagnosing the cause of reception failure and the reception diagnosis
A broadcast receiving device comprising a display device for displaying a diagnosis result of the means .