JPH0759057B2 - Television receiver - Google Patents

Television receiver

Info

Publication number
JPH0759057B2
JPH0759057B2 JP2252559A JP25255990A JPH0759057B2 JP H0759057 B2 JPH0759057 B2 JP H0759057B2 JP 2252559 A JP2252559 A JP 2252559A JP 25255990 A JP25255990 A JP 25255990A JP H0759057 B2 JPH0759057 B2 JP H0759057B2
Authority
JP
Japan
Prior art keywords
satellite broadcast
input
signal
satellite
intermediate frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2252559A
Other languages
Japanese (ja)
Other versions
JPH04129483A (en
Inventor
喜久雄 相良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2252559A priority Critical patent/JPH0759057B2/en
Publication of JPH04129483A publication Critical patent/JPH04129483A/en
Publication of JPH0759057B2 publication Critical patent/JPH0759057B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Description

【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、衛星放送チューナ装置を備えたテレビジョ
ン受信機に関する。
The present invention relates to a television receiver equipped with a satellite broadcast tuner device.

〔従来の技術〕[Conventional technology]

第2図は従来の衛星放送チューナ装置付テレビジョン受
信機の一例を示すブロック回路図である。図において、
(1)は地上波放送チューナ装置、(2)は入力端子、
(3)は、地上波放送アンテナである。(4)衛星放送
コンバータで、ケーブル(5)によって入力端子(6)
に接続される。(7)は直流電圧重畳装置、(8)は衛
星放送チューナ装置で、入力端子(6)に入力された中
間周波数の衛星放送信号は直流電圧重畳装置(7)を介
して、衛星放送チューナ装置(8)に入力される。
(9)は衛星放送コンバータ(4)の直流電流で、スイ
ッチ(10)を介して直流電圧重畳装置(7)に接続さ
れ、スイッチ(10)がオンのとき衛星放送コンバータ
(4)に駆動電圧を供給する。
FIG. 2 is a block circuit diagram showing an example of a conventional television receiver with a satellite broadcast tuner device. In the figure,
(1) is a terrestrial broadcasting tuner device, (2) is an input terminal,
(3) is a terrestrial broadcasting antenna. (4) Satellite broadcasting converter, input terminal (6) via cable (5)
Connected to. (7) is a DC voltage superimposing device, (8) is a satellite broadcasting tuner device, and an intermediate frequency satellite broadcasting signal input to the input terminal (6) is sent to the satellite broadcasting tuner device via the DC voltage superimposing device (7). Input to (8).
(9) is a DC current of the satellite broadcast converter (4), which is connected to the DC voltage superimposing device (7) through the switch (10), and drives the satellite broadcast converter (4) when the switch (10) is ON. To supply.

次に動作について説明する。地上波放送チューナ装置
(1)は、地上波放送アンテナ(3)で受けた地上波放
送を選局受信する。
Next, the operation will be described. The terrestrial broadcast tuner device (1) selects and receives the terrestrial broadcast received by the terrestrial broadcast antenna (3).

衛星放送コンバータ(4)はスイッチ(10)がオンされ
ているとき直流電源(9)から直流電圧重畳装置(7)
およびケーブル(5)を介して給電されて作動し、受信
した衛星放送をケーブル(5)および直流電圧重畳装置
(7)を介して衛星放送チューナ装置(8)に入力し、
衛星放送チューナ装置(8)は衛星放送を選局受信す
る。
The satellite broadcast converter (4) is connected to the DC voltage superimposing device (7) from the DC power supply (9) when the switch (10) is turned on.
And is operated by being supplied with power via the cable (5), and inputs the received satellite broadcast to the satellite broadcast tuner device (8) via the cable (5) and the DC voltage superimposing device (7),
The satellite broadcast tuner device (8) selects and receives satellite broadcasts.

〔発明が解決しようとする課題〕[Problems to be Solved by the Invention]

従来の衛星放送チューナ装置付きテレビジョン受信機は
以上のように構成されているので、共聴システム等で地
上波放送波と衛星放送中間周波信号とが混合されて各部
屋に送出されている場合、テレビジョン受信機の外部に
分波器を接続することが必要であり、接続が非常に複雑
であるなどの問題点があった。
Since the conventional television receiver with satellite tuner device is configured as described above, when the terrestrial broadcast wave and the satellite broadcast intermediate frequency signal are mixed and transmitted to each room in the co-listening system, etc. However, there is a problem that it is necessary to connect a demultiplexer to the outside of the television receiver, and the connection is very complicated.

この発明は上記のような問題点を解消するためになされ
たもので、外部に分波器を接続する必要がなく、更に地
上波放送と衛星放送中間周波信号がそれぞれ個別のケー
ブルにて各部屋に引き込まれている場合にも対応できる
テレビジョン受信機を得ることも目的とする。
The present invention has been made to solve the above problems, it is not necessary to connect a demultiplexer to the outside, and the terrestrial broadcasting and satellite broadcasting intermediate frequency signals are supplied to each room by separate cables. It is also an object to obtain a television receiver that can be used even when it is pulled into.

〔課題を解決するための手段〕[Means for Solving the Problems]

この発明に係るテレビジョン受信機は、地上波放送受信
信号と衛星放送受信中間周波信号の混合信号が入力され
る入力端子と、この混合信号を分波する分波器と、この
分波された衛星放送受信中間周波信号と衛星放送コンバ
ータから入力される衛星放送受信中間周波信号のどちら
かを選択して衛星放送チューナ装置に入力するスイッチ
とを備えたものである。
A television receiver according to the present invention includes an input terminal to which a mixed signal of a terrestrial broadcast reception signal and a satellite broadcast reception intermediate frequency signal is input, a demultiplexer that demultiplexes the mixed signal, and the demultiplexed signal. A switch for selecting either the satellite broadcast reception intermediate frequency signal or the satellite broadcast reception intermediate frequency signal input from the satellite broadcast converter and inputting it to the satellite broadcast tuner device is provided.

〔作用〕[Action]

スイッチは、衛星放送コンバータから中間周波信号が入
力されているときには衛星放送コンバータ側に切り換え
られ、分波器に混合信号が入力されているときには分波
器側に切り換えられる。
The switch is switched to the satellite broadcast converter side when the intermediate frequency signal is input from the satellite broadcast converter, and to the duplexer side when the mixed signal is input to the duplexer.

このため、混合信号と衛星放送コンバータの双方に対応
できるとともに、混合信号が入力される場合でも、テレ
ビジョン受信機の外に分波器を配置してケーブルで分配
接続を行う必要がない。
For this reason, it is possible to handle both mixed signals and satellite broadcast converters, and even when mixed signals are input, it is not necessary to arrange a demultiplexer outside the television receiver and perform distribution connection with cables.

〔実施例〕〔Example〕

以下、この発明の一実施例を図について説明する。第1
図において、(11)は混合信号の信号入力端子、(12)
は分波器で、入力された地上波放送受信信号と衛星放送
受信中間周波信号とを分波する。(13)はスイッチで、
分波器(12)から入力される衛星放送受信中間周波信号
と、衛星放送コンバータ(4)から直流電圧重量装置
(7)を介して入力される衛星放送受信中間周波信号の
どちらかを選択して衛星放送チューナ装置(8)に入力
する。
An embodiment of the present invention will be described below with reference to the drawings. First
In the figure, (11) is a signal input terminal for mixed signals, (12)
The demultiplexer demultiplexes the input terrestrial broadcast reception signal and the satellite broadcast reception intermediate frequency signal. (13) is a switch
Either the satellite broadcast reception intermediate frequency signal input from the duplexer (12) or the satellite broadcast reception intermediate frequency signal input from the satellite broadcast converter (4) via the DC voltage weight device (7) is selected. Input to the satellite broadcast tuner device (8).

次に動作について説明する。Next, the operation will be described.

入力端子(11)に混合信号が入力されている場合は、分
波器(12)から出力される地上波放送受信信号は地上波
放送チューナ装置(1)に入力され、選局受信される。
When the mixed signal is input to the input terminal (11), the terrestrial broadcast reception signal output from the demultiplexer (12) is input to the terrestrial broadcast tuner device (1) and channel-selected.

また、分波器(12)から出力される衛星放送受信中間周
波信号は、スイッチ(13)で選択されて衛星放送チュー
ナ装置(8)に入力され、選局受信される。
The satellite broadcast reception intermediate frequency signal output from the demultiplexer (12) is selected by the switch (13), input to the satellite broadcast tuner device (8), and selected and received.

他方、入力端子(11)に地上放送受信信号のみが入力さ
れ、入力端子(6)に衛星放送コンバータ(4)から衛
星放送受信中間周波信号が入力されている場合は、スイ
ッチ(13)は衛星放送コンバータ(4)に切り換えられ
る。
On the other hand, when only the terrestrial broadcast reception signal is input to the input terminal (11) and the satellite broadcast reception intermediate frequency signal is input to the input terminal (6) from the satellite broadcast converter (4), the switch (13) is set to the satellite. It is switched to the broadcast converter (4).

なお、上記実施例では、スイッチ(10)とスイッチ(1
3)とを連動させてもよい。
In the above embodiment, the switch (10) and the switch (1
3) and may be linked.

〔発明の効果〕〔The invention's effect〕

以上のように、この発明によれば混合信号の入力端子
と、この入力された混合信号を地上波放送受信信号と衛
星放送受信中間周波信号とに分波する分波器と、この分
波された衛星放送受信中間周波信号と、衛星放送コンバ
ータの出力信号とを選択して衛星放送チューナ装置に入
力するスイッチとを備えたものであるから、混合信号と
衛星放送コンバータの双方に対応できるとともに、混合
信号の場合でもテレビジョン受信機の外に分波器を配置
してケーブルで分配接続する必要のないテレビジョン受
信機が得られる効果がある。
As described above, according to the present invention, the mixed signal input terminal, the demultiplexer for demultiplexing the input mixed signal into the terrestrial broadcast reception signal and the satellite broadcast reception intermediate frequency signal, and the demultiplexer Since it is equipped with a switch for selecting the satellite broadcast reception intermediate frequency signal and the output signal of the satellite broadcast converter and inputting it to the satellite broadcast tuner device, it is possible to support both the mixed signal and the satellite broadcast converter. Even in the case of mixed signals, it is possible to obtain a television receiver in which it is not necessary to dispose the demultiplexer outside the television receiver and to distribute and connect with a cable.

【図面の簡単な説明】[Brief description of drawings]

第1図は、この発明の一実施例のブロック回路図、第2
図は従来の衛星放送チューナ装置を備えたテレビジョン
受信機のブロック回路図である。 (1)……地上波放送チューナ装置、(4)……衛星放
送コンバータ、(5)……衛星放送コンバータ出力信号
の入力端子、(7)……直流電圧重畳装置、(8)……
衛星放送チューナ装置、(9)……電流電源、(10),
(13)……スイッチ、(11)……混合信号の入力端子、
(12)……分波器。 なお、各図中、同一符号はそれぞれ同一、または相当部
分を示す。
FIG. 1 is a block circuit diagram of an embodiment of the present invention, and FIG.
FIG. 1 is a block circuit diagram of a television receiver including a conventional satellite broadcast tuner device. (1) …… Terrestrial broadcast tuner device, (4) …… Satellite broadcast converter, (5) …… Satellite broadcast converter output signal input terminal, (7) …… DC voltage superimposing device, (8) ……
Satellite broadcasting tuner device, (9) ... Current power supply, (10),
(13) …… Switch, (11) …… Mixed signal input terminal,
(12) …… Splitter. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】地上波放送受信信号またはこの受信信号と
衛星放送受信中間周波信号の混合信号が入力される入力
端子と、この混合信号を上記二つの受信信号に分波する
分波器と、この分波された地上波放送受信信号が入力さ
れる地上波放送チューナ装置と、衛星放送コンバータか
ら出力された衛星放送受信中間波信号が入力される入力
端子と、この入力された衛星放送受信中間周波信号と上
記分波器から出力される衛星放送受信中間周波信号のう
ちいずれか一方を選択するスイッチと、このスイッチで
選択された中間周波信号が入力される衛星放送チューナ
装置とを備えたテレビジョン受信機。
1. A terminal for receiving a terrestrial broadcast reception signal or a mixed signal of this reception signal and a satellite broadcasting reception intermediate frequency signal, and a demultiplexer for demultiplexing the mixed signal into the two reception signals. The terrestrial broadcast tuner device to which the demultiplexed terrestrial broadcast reception signal is input, the input terminal to which the satellite broadcast reception intermediate wave signal output from the satellite broadcast converter is input, and the input satellite broadcast reception intermediate A television including a switch for selecting one of a frequency signal and a satellite broadcast reception intermediate frequency signal output from the demultiplexer, and a satellite broadcast tuner device to which the intermediate frequency signal selected by the switch is input. John receiver.
JP2252559A 1990-09-20 1990-09-20 Television receiver Expired - Fee Related JPH0759057B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2252559A JPH0759057B2 (en) 1990-09-20 1990-09-20 Television receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2252559A JPH0759057B2 (en) 1990-09-20 1990-09-20 Television receiver

Publications (2)

Publication Number Publication Date
JPH04129483A JPH04129483A (en) 1992-04-30
JPH0759057B2 true JPH0759057B2 (en) 1995-06-21

Family

ID=17239058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2252559A Expired - Fee Related JPH0759057B2 (en) 1990-09-20 1990-09-20 Television receiver

Country Status (1)

Country Link
JP (1) JPH0759057B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6670446B2 (en) 2016-06-15 2020-03-25 株式会社オートネットワーク技術研究所 connector

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0744480B2 (en) * 1987-10-20 1995-05-15 株式会社富士通ゼネラル Tuner circuit of satellite TV receiver
JP2703929B2 (en) * 1988-06-25 1998-01-26 株式会社東芝 Input circuit for BS tuner

Also Published As

Publication number Publication date
JPH04129483A (en) 1992-04-30

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