JP2596484Y2 - Satellite broadcast receiver - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite broadcast receiving apparatus.

[0002]

2. Description of the Related Art In a satellite broadcasting system called Astra used in Europe, the transmission plane of a satellite broadcasting transmission wave is transmitted while being alternately changed for each channel. Therefore, the receiving side that receives such a broadcast needs to switch the polarization plane of the satellite broadcast receiving antenna according to the channel to be received.

On the other hand, if a television (TV) receiver or a video tape recorder (VTR) capable of receiving satellite broadcasts is to be simultaneously received using the above-described one antenna, the polarization plane of the signal to be received is changed. Since reception is not possible if the TV and the VTR are different, it is necessary to output a control signal to the antenna so that one of the antennas can receive two different polarizations. That is, even if an antenna is set in the TV receiver so that desired reception can be performed, if the setting selects a polarization plane that cannot receive a channel selected by the VTR, the user can use the antenna. Even if the VTR is set to the recording mode without knowing that, no recording occurs.

[0004]

[Problems to be solved by the invention] For this reason, the conventional TV
Whether the receiver and the VTR are receiving signals of different polarization planes at the same time must be determined by the manner in which the TV receiver monitors the state of reflection, and it is necessary to switch the polarization plane of the antenna so that a desired program can be recorded. .

Therefore, the present invention is to solve such a drawback.

[0006]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a satellite broadcast receiving apparatus for receiving a satellite signal transmitted by changing the polarization plane of a transmission radio wave for each channel, comprising: a satellite broadcast receiving antenna; a TV receiver; , VTR and the TV
A first satellite broadcast receiver provided in a receiver, and the VT
R, a second satellite broadcast receiver provided at R, a distributor for supplying a signal from the antenna to the first and second satellite broadcast receivers, and a distributor for the first and second satellite broadcast receivers. Monitoring means for monitoring the channel selection status; reception polarization plane switching means for switching the reception polarization plane of the satellite broadcast receiving antenna; and the first receiver and the second receiver T is different from the receiver of
A warning means for giving a warning by displaying the fact on a display circuit provided in the V receiver is provided.

[0007]

According to the above means, when the first and second satellite broadcast receivers receive simultaneously, it is warned that the polarization planes of the radio waves received by the first and second satellite broadcast receivers are different.

[0008]

FIG. 1 shows a satellite broadcast receiving apparatus according to an embodiment of the present invention, which can receive satellite broadcast transmission radio waves in a system called Astra implemented in Europe. The satellite broadcast transmission radio wave in the system called Astra is transmitted with the polarization plane of the transmission radio wave changed for each channel.

The satellite broadcast transmission radio wave caught by the satellite broadcast receiving antenna 1 having the polarization plane switching device 2 is supplied to the satellite broadcast receiving (BS) tuner 5 of the TV receiver 4 and the BS tuner 11 of the VTR 10 by the distributor 3. Is done.

Now, the polarization plane of the received radio wave of the channel selected by the TV receiver 4 by the tuning circuit 6 and the polarization plane of the received radio wave of the channel selected by the VTR 10 by the tuning circuit 12 are different. In this case, it is necessary to control the polarization plane switching device 2 of the antenna 1 so that the desired polarization can be received. In the present invention, this is performed in the following manner.

That is, a tuning signal from the tuning circuit 12 of the VTR 10 is applied to the control circuit 13, where it is converted into a control signal and supplied to the comparison circuit 8 of the TV receiver 4. The comparison circuit 8 compares the tuning signal from the tuning circuit 6 of the TV receiver 4 with the control signal from the control circuit 7, and as a result, transmits the radio waves having different polarization planes to the TV receiver and the VT.
When the channel is selected simultaneously by R, a warning is issued to the user by the display circuit 9 displaying that effect.

Therefore, if the user views the antenna 1 and wants to view a desired satellite program on the TV receiver 4, for example, the reception polarization plane switching device 2 provided on the antenna 1 in accordance with the user desires. Control.

FIG. 2 shows a case where the distributor 3 is built in the TV receiver 4, and the other configuration is completely the same as that of FIG.

[0014]

As described above, according to the present invention, if the polarization plane of the signal to be received is different between the TV and the VTR, a warning is issued to notify the user that the recording plane of the VTR is wrong or the receiver is out of order. The inconvenience of misunderstanding is eliminated.

[Brief description of the drawings]

FIG. 1 is a diagram showing one embodiment of a satellite broadcast receiving device of the present invention.

FIG. 2 is a diagram illustrating another embodiment of the satellite broadcast receiving apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Satellite broadcast receiving antenna 2 Polarization switching device 3 Divider 4 TV receiver 5 Tuner 6 Tuning circuit 8 Comparison circuit 9 Display circuit 10 VTR 11 Tuner 12 Tuning circuit

Claims (1)

(57) [Scope of request for utility model registration] 1. A satellite broadcast receiving apparatus for receiving a satellite signal transmitted by changing the polarization plane of a transmission radio wave for each channel, comprising: a satellite broadcast receiving antenna 1, a TV receiver 4, a VTR 1
0, a first satellite broadcast receiver 5 provided in the TV receiver, a second satellite broadcast receiver 11 provided in the VTR, and a signal from the antenna to the first and second satellite broadcast receivers.
, A monitoring means for monitoring the channel selection status of the first and second satellite broadcast receivers, and a reception polarization plane switch for switching a reception polarization plane of the satellite broadcast reception antenna Means and a display circuit provided in the TV receiver when the polarization plane of the broadcast radio wave currently being received by the monitoring means is different between the first receiver and the second receiver.
And a warning means for giving a warning by displaying the fact.