JPH1065995A - Power supply setting device to be converter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set optimizingle power supply setting to a BS converter even when a user does not designate a supply method. SOLUTION: A BS converter power supply changeover judging means 7 selects a power supply to a BS converter 2, a channel selection control means 6 selects all BS channels and a synchronizing signal presence judging means 5 to judge a presence of a synchronizing signal of a selected channel. Then a BS converter power supply setting storage section 8 stores it as an optimum power supply setting to be a power supply state when a judging result indicates presence of the synchronizing signal and to be no power supply when the presence of the synchronizing signal cannot detected in any power supply state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for setting power supply to a BS converter used in a television receiver.

[0002]

2. Description of the Related Art When viewing satellite broadcasts, it is necessary to install a BS antenna and supply power to a BS converter. As means for supplying power to the BS converter, there are means for supplying power from a television receiver having a built-in BS tuner and means for supplying power from other devices.

[0003] Conventionally, when setting power supply to a BS converter in a television receiver with a built-in BS tuner, a user determines whether or not to supply power from the connection state.

[0004]

In the above prior art, B
When setting power supply to the BS converter in a television receiver with a built-in S tuner, the user determines whether to supply power from a television receiver with a built-in BS tuner or from another device. It had to be set by the power supply setting device. In addition, satellite broadcasting cannot be received with the wrong setting,
Alternatively, there is a problem that unnecessary power is supplied.

SUMMARY OF THE INVENTION In view of the above problems, the present invention makes it possible to set the power supply to the BS converter to an optimum setting.
A power supply setting device for an S converter is provided.

[0006]

In order to solve the above-mentioned problems, a power supply setting device for a BS converter according to the present invention provides a BS converter power switching request based on BS channel selection and information on the presence / absence of a synchronization signal of each BS channel. Tuning control means to perform and B from the BS converter
A BS tuner for tuning the BS channel selected by the tuning control means from the S-IF signal;
A video signal processing means for extracting a synchronization signal portion from a baseband signal of a video from the tuner; a synchronization signal presence / absence determination means for determining the presence / absence of a synchronization signal extracted by the video signal processing means; BS converter power switch determining means for determining BS converter power switch when there is a switching request of
The BS converter has a configuration including BS converter power control means for setting the power state determined by the BS converter power switch determination means and BS converter power setting storage means for storing the power state determined by the BS converter power switch determination means. is there.

[0007] This makes it possible to set the power supply to the BS converter to an optimal setting.

[0008]

According to the first aspect of the present invention, the power supply to the BS converter is set based on the determination of the presence or absence of a synchronization signal. It has the effect of making settings as simple as possible.

According to a second aspect of the present invention, when power is supplied to the BS converter and a synchronization signal is present in the BS channel, power is supplied to the BS converter. And B
It is possible to determine that satellite broadcasting can be received by supplying power to the S converter, and it is possible to set to supply power to the BS converter.

According to a third aspect of the present invention, a setting is made to supply power to the BS converter when a power supply to the BS converter is not supplied and a synchronization signal is present in the BS channel. And B
It is possible to determine that power is being supplied to the S converter from another device, and it is possible to set so that power supply to the BS converter is not performed.

According to the invention described in claim 4 of the present invention, the setting is made such that the power supply to the BS converter is not performed when there is no synchronization signal in all the BS channels regardless of the power supply to the BS converter. It is like that,
It is possible to determine that satellite broadcasting cannot be received regardless of the BS converter power supply setting, and it is possible to set so that power supply to the BS converter is not performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG.

(Embodiment 1) FIG. 1 is a block diagram showing an apparatus for setting power supply to a BS converter according to an embodiment of the present invention. In FIG. 1, reference numeral 1 denotes a BS antenna that receives a radio wave from a broadcasting satellite, 2 denotes a BS converter that converts a radio wave received by the BS antenna 1 into a BS-IF signal,
Reference numeral 3 denotes a BS tuner for extracting a video and audio baseband signal of a channel to be selected from the BS-IF signal. Reference numeral 4 denotes a video signal processing means for detecting a synchronization signal from the extracted video baseband signal. A synchronization signal presence / absence determining means 6 for determining the presence / absence of the synchronization signal, which controls the BS tuner to switch the BS channel at regular intervals, and from the synchronization signal presence / absence information of the determination result of the synchronization signal presence / absence determination means. Channel selection control means for performing a power supply switching request of the BS converter; BS converter power supply determination means for determining the power supply state of stopping or starting the power supply of the BS converter based on the BS converter power supply request from the channel selection control means; Reference numeral 8 denotes a BS for storing the setting state of the BS converter.
The converter power setting storage section 9 is a BS converter power control means for setting the power state determined by the BS converter power switching determining means, and 10 is a B power converter when the start of setting is detected.
This is a setting state initializing means for setting the power of the S converter and initializing the BS channel. Hereinafter, the operation will be described.

When a setting start operation input is detected by the setting state initializing means 10, the BS converter power switching determining means 7 initializes the BS converter power setting processing.
The power supply to the converter is stopped, and BS-1 is selected by the tuning control means 6. If the BS converter power switching determining means 7 determines that the power supply is stopped,
Converter power control means 9 converts DC-15V to B
The supply to the S converter 2 is stopped. By the initialization of the setting state initializing means 10, BS-1 is selected by the tuning control means 6.
Is selected, BS-1 is selected by the BS tuner 3 from the BS-IF signal from the BS antenna 1, and the video and audio baseband signals are extracted. The synchronizing signal is detected by the video signal processing means 4 from the extracted baseband signal of the video, and the presence or absence of the synchronizing signal is judged by the synchronizing signal existence judging means 5. This process is performed for all BS channels from BS-1 to BS-15. BS-1 to BS
If there is a channel determined to have a synchronization signal by the synchronization signal presence / absence detection means 5 in any one of the channels up to -15, the channel selection control means 6 determines that power is not supplied to the BS converter, It is stored in the setting storage unit.

The tuning control means 6 controls the BS-1.
If all the channels from BS to BS-15 are determined to have no synchronization signal by the synchronization signal presence / absence detection means 5, the BS
The converter power supply switching determination means 7 determines that power supply has started. When the start of power supply is judged by the BS converter power switching judgment means 7, the supply of DC-15V to the BS converter 2 is started by the BS converter power control means 9. In this power supply state of the BS converter, channel selection designated by the channel selection control means 6 again from the BS-IF signal from the BS antenna 1 for all BS channels from BS-1 to BS-15 by the channel selection control means 6 again. The channel is selected by the BS tuner 3, video and audio baseband signals are extracted, a synchronization signal is detected by the video signal processing unit 4 from the extracted video baseband signal, and the presence or absence of the synchronization signal is determined by the synchronization signal presence / absence determination unit 5. Make a judgment.

If any of the channels from BS-1 to BS-15 has a channel determined to have a synchronization signal by the synchronization signal presence / absence detection means 5, power is supplied to the BS converter by the channel selection control means 6. And judge
It is stored in the BS converter power setting storage unit.

When all the channels from BS-1 to BS-15 are judged by the synchronizing signal presence / absence detecting means 5 to have no synchronizing signal, the tuning control means 6 sets the BS.
It is determined that power is not supplied to the converter and stored in the BS converter power setting storage unit.

[0018]

As described above, according to the present invention, it is not necessary for the user to be conscious of which device should supply power to the BS converter, and the power supply to the BS converter can be set to an optimum setting. The advantageous effect that it becomes possible is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of a power supply setting device for a BS converter according to an embodiment of the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 BS antenna 2 BS converter 3 BS tuner 4 Video signal processing means 5 Synchronization signal presence / absence determination means 6 Channel selection control means 7 BS converter power switching determination means 8 BS converter power setting storage unit 9 BS converter power control means 10 Setting state initialization means

Claims (4)

[Claims] 1. An apparatus for setting power supply to a BS converter, wherein power supply to the BS converter is set based on the determination of the presence or absence of a synchronization signal. 2. When the start of power supply is determined by the BS converter power switching determining means, all BS channels are selected by the tuning control means, and the presence / absence of a synchronization signal is determined by the synchronization signal presence / absence determining means. A power supply setting device for a BS converter, wherein when there is a channel with a synchronization signal, a setting for supplying power to the BS converter is stored in a BS converter power setting storage unit. 3. When the power supply is determined to be stopped by the BS converter power switching determining means, all BS channels are selected by the tuning control means, and the presence / absence of a synchronization signal is determined by the synchronization signal presence / absence determining means. A power supply setting device for a BS converter, wherein a setting for not supplying power to the BS converter when a channel having a synchronization signal is present is stored in a BS converter power setting storage unit. 4. When the start of power supply is judged by the BS converter power switch judging means, all the BS channels are tuned by the tuning control means, and the presence / absence of a synchronizing signal is judged by the synchronizing signal existence judging means. If all the channels have no synchronizing signal and the BS converter power switching judging means judges the stop of the power supply, all the BS channels are selected by the tuning control means and the synchronizing signal is judged by the synchronizing signal existence judging means. It is determined whether or not there is no synchronizing signal in all the channels, and a setting for not supplying power to the BS converter is stored in a BS converter power setting storage unit. Supply setting device.