JP2560134Y2 - Converter power supply for equipment with built-in BS tuner - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The invention relates to satellite broadcasting (B
S) The present invention relates to a power supply for a BS converter connected to an antenna.

[Related Art] When receiving satellite broadcasting, it is necessary to supply 15 V DC power to a BS converter provided in a BS antenna. Conventionally, power is supplied from the antenna input terminal of one device (built-in converter power supply) with a built-in BS tuner, and the power is supplied by a power supply device separately from the device with a built-in BS tuner. And are used.

[Problem to be solved by the present invention] However, in the above method, one BS antenna is connected to a BS antenna.
TV and video tape recorder with built-in tuner (VT
R) is connected via a distributor (or a branching device), the distributor is widely available on the market.
It is a directional type, and can only supply power to the antenna side (that is, the converter) only from the device connected to one side of the branch, and therefore, the power of the device on the power supply side is always Otherwise, the equipment connected to the other side of the branch cannot be used (that is, the BS broadcast cannot be received or recorded). That is, ON / OFF of the power switch of the equipment with built-in BS tuner of the power supply source
This limits the use period (time) of other built-in devices, which is inconvenient.

FIG. 5 shows an example of a panel section of a conventional BS tuner having a built-in converter power supply. The BS tuner 4 outputs the converter output 13 when the power switch 11 is turned on. However, when the switch 11 is turned off, the converter output 13 is not output.

As described above, even when the distribution is performed, if the all-terminal current-passing type (all terminals have a built-in backflow prevention diode to prevent an accident) is used as a distributor, However, such all-terminal current-pass distributors are not generally available on the market and are expensive.

Next, in the above method, even when distribution is performed,
Power is always supplied to the converter separately from each device with a built-in BS tuner. However, a separate power source is required, which increases the scale of the system and increases costs. Therefore, although it is used as a co-listening system, it is not generally used.

FIG. 6 shows an example of the above method. Converter power is supplied to the converter 2 of the BS antenna 1 from another power source such as a BS booster 7, and a BS tuner 4 and a television 5 (which may have a built-in tuner) are connected to the BS 2 via a distributor 3.
VTR6 with built-in tuner is connected.

The present invention solves the above-mentioned problems, and enables the converter power to be constantly output even when the power of the device with the built-in BS tuner having the converter power is turned off.
When distributing signals from a BS antenna to a plurality of devices using a normal one-way splitter, restricting the use of the other device regardless of the state of the power switch of the device that supplies power It is an object of the present invention to provide a converter power supply device for a device with no built-in BS tuner.

Means for Solving the Problems In order to achieve the above object, the present invention provides a device with a built-in BS tuner including a converter power supply for supplying power to a BS converter, even when a power switch of the device is turned off. A state in which converter power can be supplied is set.

[Operation] According to the above configuration, it is possible to always supply the converter power regardless of whether the power of the device with the built-in BS tuner is on or off. Therefore, a general distributor can be used for one converter. When a plurality of devices with a built-in BS tuner are connected in a branched manner, even if the power of the built-in device serving as the power supply source is turned off, there is no effect on BS broadcast reception by other built-in devices.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

1 and 2 show the configuration of a first embodiment of the present invention. In this example, the present invention is applied to a BS tuner 4a (or a television with a built-in BS tuner).

As for the overall configuration, the converter 2 of the BS antenna 1 is connected to a common end of a one-way current passing type distributor (or distributor) 3 by a coaxial cable. , BS tuner in which the present invention was implemented
4a and a television 5a (or a television with a built-in BS tuner) are connected, and a VTR 6a with a built-in BS tuner is connected to the other branch end.

As shown in FIG. 2, the BS tuner 4a has a panel power supply switch 12 in addition to the tuner power supply switch 11, as shown in FIG. In the setting 1, the converter (power) output 13 is set only when the power switch 11 is turned on.
In the setting 2, the converter output 13 is always OFF, and in the setting 3, the converter output 13 is always ON.

Therefore, by setting the converter power switch 12 to setting 3, the power switch 11 of the BS tuner 4a
Regardless of ON or OFF, the converter output 13 is turned ON. For this reason, power is always supplied to the converter 2 through the line of the converter output 13 along the path indicated by the arrow in FIG. The converter output 13 line is also used as the antenna coaxial cable. Needless to say, it is necessary to keep the power plug of the BS tuner 4a connected to the power source. Further, the distributor 3 has a current passing circuit in the direction of the solid line arrow.
It is propagated to both devices through both paths indicated by broken lines.

Since the operation is performed in this manner, the satellite broadcast can be arbitrarily received and recorded by the VTR 6a with the built-in BS tuner even when the power switch 11 of the BS tuner 4a is OFF (or includes the standby state).

3 and 4 show a second embodiment of the present invention. In the present embodiment, the present invention is applied to a VTR 6b with a built-in BS tuner.

That is, the VTR 6b with a built-in BS tuner is
In addition to the above, there is a converter power switch 22 that can perform three kinds of settings as described above.
The converter output 23 can be turned on regardless of the state of the FF. Converter output 2 of this VTR6b with built-in BS tuner
The line 3 (coaxial cable) is connected to the branch of the distributor 3 on the current passing side in one direction, and the converter power is supplied along the path indicated by the arrow in FIG. The BS tuner 4b and the television 5b are connected to the other branch of the distributor 3.

Even in this configuration, the BS tuner is built in
By setting the converter power switch 22 of the VTR 6b to setting 3, the converter output 23 is always turned on and power is supplied to the converter 2 regardless of the state of the power switch 21. Therefore, BS broadcast reception by the other BS tuner 4b and the television 5b is always possible.

In each of the above embodiments, an example is shown in which the converter power switches 12, 22 capable of setting three states are provided.
May be obtained.

In addition, a system that achieves the same effect by controlling any of these settings 1, 2, and 3 by using a microcomputer built in the device and enabling the setting with a front switch or a remote control of the device is also provided. Can be applied.

[Effects of the Invention] As described above, according to the present invention, even when the power switch of a device with a built-in BS tuner having a power supply for a converter is turned off,
Since the converter power can always be output, the built-in power supply source is used when multiple BS tuner built-in devices are connected to one BS antenna (converter) using a general one-way current passing type distributor. Even when the power switch of the device is turned off, there is no restriction on the use of other built-in devices, and there is no deficiency in distribution.

Therefore, it is also possible to simplify the configuration of the BS broadcast receiving system without requiring a separate power supply from the BS-UV mixer and a joint receiving system.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram of a BS broadcast receiving system provided with a converter power supply device according to a first embodiment of the present invention, FIG. 2 is a configuration diagram of a panel portion of the power supply device in the embodiment, FIG.
FIG. 4 is an overall configuration diagram of a second embodiment of the present invention, FIG. 4 is a configuration diagram of a panel portion of the power supply device in the embodiment, FIG. 5 is a configuration diagram showing an example of a conventional device, and FIG. 1 is an overall configuration diagram showing an example of a conventional system. 1 ... BS antenna, 2 ... Converter, 3 ... Distributor,
4a: BS tuner, 6b: VTR with built-in BS tuner, 11,
21 Power switch, 21, 22 Converter power switch, 13, 23 Converter output.

Claims (1)

(57) [Scope of request for utility model registration] 1. A converter power supply device for a device with a built-in BS tuner comprising a converter power supply for supplying power to a BS converter, wherein a state in which converter power can be supplied even when a power switch of the device is turned off is set. A converter power supply device for a device with a built-in BS tuner, comprising a converter power switch for connecting the BS converter to the device with a built-in BS tuner via a one-way current passing type distributor.