JPH05129971A - Broadcast receiver - Google Patents

Abstract

(57) [Abstract] [Purpose] When the received signal strength at the broadcast receiver decreases,
It automatically diagnoses whether the cause is on the side of a specific broadcasting station or on the side of the receiving device. [Structure] Based on the signal from the signal strength detection device 3, the reception state determination means 4 determines the reception state. As a result, when it is determined that the channel is not good, another channel is automatically selected by the channel selection device 5 and the reception state is determined by the reception diagnosis means 6. If the reception status of all broadcasting stations is not good, it is diagnosed that the cause of poor reception is satellite broadcasting, weather conditions, antennas, or satellite eclipse, and if not, it is the broadcasting station side. .. [Effect] It is possible to avoid an error in the diagnosis by the user, shorten the diagnosis time, and perform an appropriate diagnosis without complicating the operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention diagnoses whether the cause of the decrease in the received signal is due to the broadcasting station or the receiving device by automatically searching for another broadcast wave when the strength of the received signal is decreased. The present invention relates to a broadcast receiving device that does.

[0002]

2. Description of the Related Art FIG. 2 is a block diagram showing a conventional broadcast receiving apparatus such as satellite broadcasting. In the figure, 1 is a receiving antenna, 2 is a receiving device for receiving a signal from the antenna 1,
Reference numeral 19 is a receiver, 18 is a speaker, 20 is a signal strength detector for received radio waves, 21 is a signal strength display device, and 22 is a channel selection button.

Since the conventional broadcast receiving apparatus is configured as described above, when the signal strength is lowered during reception of the broadcast signal, the user can manually operate the channel selection button 22 to receive another broadcast wave. After confirming whether it is the receiver 19, the speaker 18, the signal strength display device 21, or the like, it is determined whether the cause of the signal strength reduction is on the side of a specific broadcasting station or the side of the receiving device.

[0004]

Since the conventional broadcast receiving apparatus operates the channel selection button 22 by the user's hand as described above, it takes a lot of time and trouble to diagnose a decrease in signal strength. .. In addition, these operations and receiver 19, speaker 18 or signal strength display device 21
It has been difficult for general users to diagnose from.

The present invention has been made in order to solve such a problem, and after confirming the signal strength of other broadcast radio waves by automatically performing a channel selection operation, the cause of the signal strength decrease It is an object of the present invention to obtain a broadcast receiving device capable of diagnosing whether is on a specific broadcasting station side or on a receiving device side.

[0006]

A broadcast receiving apparatus according to the present invention is a receiving apparatus for receiving broadcast radio waves, a signal strength detecting apparatus for the received radio waves, a reception state judging means based on the signal strength, and a broadcasting station radio wave tuning. It is provided with a tuning device that operates, a reception diagnosis means based on the reception state memory, and a display means of the reception diagnosis result.

[0007]

In the present invention, the receiving condition is judged based on the detection signal of the signal strength detecting device, and when it is judged that the receiving condition is not good, another broadcasting station is automatically selected.
Similarly, it is possible to judge the reception state and diagnose the cause of the reception failure based on the result.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An 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 received signal from the antenna 1, 3 is a signal strength detecting device that detects the strength of the receiving signal, and 4 is a receiving state based on this signal strength. Reception status determining means,
Reference numeral 5 is a channel selection device for selecting another broadcast station, 6 is a reception diagnosis means for diagnosing the cause of reception failure based on the reception state of each broadcast station, and 7 is a display means for notifying the user of the diagnosis result.

Next, the operation of the satellite broadcast receiving apparatus will be described with reference to FIG.

First, broadcast radio waves are received by the receiving antenna 1 and processed by the receiving device 2. The signal strength is detected by the signal strength detecting device 3, and the reception state judging means 4 judges whether or not the signal level is good. If the reception state is good as a result, this signal strength detection and reception state determination are repeated, and if it is not good, the tuning device 5
Select another broadcasting station. Then, the signal strength detection device 3 similarly detects the signal strength, and the reception status determination means 4 determines whether or not the reception status is good.

If good reception is possible here, the reception diagnosis means 6 diagnoses that the cause is on the side of the broadcasting station that has previously determined that the reception is poor. If the reception condition of all broadcasting stations is not good, it is diagnosed that the cause of the poor reception condition is satellite broadcasting, weather conditions, antennas, or satellite eclipse. These diagnostic results are displayed by the display means 7.

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

First, in step 8, the signal strength of the signal-processed broadcast radio wave is detected, and in step 9, it is determined whether or not the signal level is good. If there is a reception state as a result, the loop consisting of steps 8 and 9 is repeated, and if it is not good, another broadcasting station is selected in the next step 10. Then, in step 11, it is determined whether or not the reception status of the other broadcasting station is good, and if the result is that the radio waves of the other broadcasting station can be received satisfactorily, the cause is caused by the broadcasting station side that has previously determined that the reception is poor. The display of the diagnosis result indicating that there is is performed in step 13.

If the reception conditions of all the broadcasting stations are not good, the diagnostic result display that the cause of the poor reception condition is satellite broadcasting, weather conditions, antennas, or satellite eclipse is displayed in step 12. Display of these diagnostic results includes a method of notifying by sound or vibration through a speaker or the like, a method of displaying by letters or symbols on a fluorescent tube, a liquid crystal panel, a screen of a receiver, or the like.

It should be noted that, by adding the step 14 of satellite eclipse time zone determination for determining whether or not satellite eclipse to the above-mentioned flowchart as shown in FIG. Step 13,
It can be changed so that the step 16 for displaying the diagnostic result indicating that the satellite broadcasting, the weather condition, and the antenna are present, and the step 15 for displaying the diagnostic result indicating that the satellite eclipse is present. This can be done by a method such as storing the satellite eclipse time in a memory, calculating the satellite eclipse time from the start-up calculation of the celestial body, or storing the satellite eclipse time by the user.

[0016]

As described above, according to the present invention, a signal strength detecting device is provided which automatically selects another broadcasting station when the signal strength of the broadcast receiving device is lowered and judges the goodness of the signal strength,
Since the cause of the signal strength decrease is diagnosed based on the determination, it is possible to automatically perform an appropriate diagnosis without complicating the operation and avoiding a user's erroneous diagnosis.

[Brief description of 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 apparatus.

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

FIG. 4 is a flowchart showing the operation of an 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 channel selecting device 6 receiving diagnostic means 7 display means

Claims (1)

[Claims] 1. A receiving device for receiving broadcast radio waves, a signal strength detection device for the received radio waves, a reception state judging means based on the signal strength, a channel selection device for performing a radio wave selection operation of the broadcasting station, and a reception state memory. A broadcast receiving apparatus comprising a reception diagnosis means and a display means for displaying a reception diagnosis result.