JPH0526856Y2 - - Google Patents
Info
- Publication number
- JPH0526856Y2 JPH0526856Y2 JP1986159814U JP15981486U JPH0526856Y2 JP H0526856 Y2 JPH0526856 Y2 JP H0526856Y2 JP 1986159814 U JP1986159814 U JP 1986159814U JP 15981486 U JP15981486 U JP 15981486U JP H0526856 Y2 JPH0526856 Y2 JP H0526856Y2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- antenna
- frequency
- section
- television broadcast
- 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 - Lifetime
Links
- 230000005236 sound signal Effects 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000010355 oscillation Effects 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
【考案の詳細な説明】
〈産業上の利用分野〉
この考案は、テレビジヨン放送信号をFM放送
が行なわれている周波数帯の信号に変換して再送
信する装置に関する。[Detailed Description of the Invention] <Industrial Application Field> This invention relates to a device that converts a television broadcast signal into a signal in a frequency band in which FM broadcasting is performed and retransmits the signal.
〈従来技術〉
従来、テレビジヨン放送信号の音声信号を受信
するためのTV音声受信機が市販されている。<Prior Art> Conventionally, TV audio receivers for receiving audio signals of television broadcast signals are commercially available.
〈考案が解決しようとする問題点〉
ところで、テレビジヨン放送信号の音声信号
は、FM変調したものであるので、FM受信機が
テレビジヨン放送信号も受信可能に構成されてい
れば、１台のFM受信機でテレビジヨン放送信号
の音声信号とFM放送信号との双方を受信でき
る。ところが、FM受信機の中にはテレビジヨン
放送信号を受信することができないものがある。
例えば、車輌に取付けられたFM受信機、いわゆ
るカーラジオがそうである。従つて、車輌内には
カーラジオがあるにもかかわらず、TV音声受信
機を設置しなければ、車輌内でテレビジヨン放送
信号の音声信号とFM放送信号の双方を受信する
ことができないという問題点があつた。さらに、
このような場合、FM放送はカーラジオのスピー
カから聞こえ、テレビジヨン放送の音声は、カー
ラジオのスピーカとは異なる位置に設置されてい
るTV音声受信機のスピーカから聞こえるので、
聴覚上不自然さを伴なうことがあるという問題点
もあつた。<Problem to be solved by the invention> By the way, the audio signal of the television broadcast signal is FM modulated, so if the FM receiver is configured to be able to receive the television broadcast signal as well, one An FM receiver can receive both the audio signal of the television broadcast signal and the FM broadcast signal. However, some FM receivers cannot receive television broadcast signals.
An example of this is an FM receiver installed in a vehicle, a so-called car radio. Therefore, even though there is a car radio in the vehicle, there is a problem in that it is not possible to receive both the audio signal of the television broadcast signal and the FM broadcast signal in the vehicle unless a TV audio receiver is installed. The point was hot. moreover,
In such cases, FM broadcasts will be heard from the car radio's speakers, and television broadcast audio will be heard from the TV audio receiver's speakers, which are installed in a different location from the car radio's speakers.
There was also the problem that it sometimes sounded unnatural.
〈問題点を解決するための手段〉
上記の問題点を解決するため、この考案は、テ
レビジヨン放送が行なわれている周波数帯と、
FM放送が行なわれている周波数帯との電波を送
受信できる１台の共用アンテナと、この共用アン
テナで受けたテレビジヨン放送音声信号をFM放
送が行なわれている周波数帯の信号に変換して出
力する周波数変換部と、共用アンテナと周波数変
換部との間に介在し、テレビジヨン放送音声信号
を周波数変換部に供給すると共に、周波数変換部
の出力を共用アンテナに供給するアンテナ共用部
とを、具備するものである。<Means for solving the problem> In order to solve the above problem, this invention is based on the frequency band in which television broadcasting is carried out,
One common antenna that can transmit and receive radio waves in the frequency band where FM broadcasting is carried out, and the television broadcast audio signal received by this common antenna is converted to a signal in the frequency band where FM broadcasting is carried out and output. an antenna common section interposed between the shared antenna and the frequency conversion section, which supplies the television broadcast audio signal to the frequency conversion section and supplies the output of the frequency conversion section to the shared antenna; It is to be equipped.
〈作用，効果〉
この考案によれば、共用アンテナで受けたテレ
ビジヨン放送音声信号は、アンテナ共用部を介し
て周波数変換部に供給されて、FM放送が行なわ
れている周波数帯の信号に周波数変換され、周波
数変換部から出力される。この周波数変換部から
の出力は、アンテナ共用部を介して共用アンテナ
から放射される。従つて、例えば上述したような
カーラジオでFM放送とテレビジヨン放送の音声
とを聞くことができ、わざわざ車輌内にTV音声
受信機を設置する必要はない。しかも、カーラジ
オのスピーカからFM放送とテレビジヨン放送の
音声との双方を聞くことができるので、FM放送
を聞いたときと、テレビジヨン放送の音声を聞い
たときとで、聴覚上の不自然さは生じない。ま
た、このように再送信しているので、例えばカー
ラジオを備えた自動車が、テレビジヨン放送信号
の受信エリア外にいても、テレビジヨン放送音声
信号を受信可能となる。しかも、この再送信装置
では、異なる周波数でありながら、送受信共用の
１台のアンテナと、アンテナ共用部を設けている
ので、受信用と送信用とにそれぞれ別々のアンテ
ナを設ける必要がなく、回路構成を簡略化するこ
とができる上に、小型化することができる。<Operations and Effects> According to this invention, the television broadcast audio signal received by the common antenna is supplied to the frequency conversion section via the antenna common section, and the frequency is converted into a signal in the frequency band in which FM broadcasting is being performed. It is converted and output from the frequency conversion section. The output from this frequency conversion section is radiated from the common antenna via the antenna common section. Therefore, the audio of FM broadcasts and television broadcasts can be heard using, for example, the above-mentioned car radio, and there is no need to take the trouble to install a TV audio receiver in the vehicle. Moreover, since you can hear both FM broadcasts and TV broadcasts through the car radio speakers, there may be audible artifacts when listening to FM broadcasts or when listening to TV broadcasts. It doesn't happen. Moreover, since retransmission is performed in this manner, even if a car equipped with a car radio is outside the reception area of the television broadcast signal, it is possible to receive the television broadcast audio signal. Moreover, this retransmission device has one antenna for both transmitting and receiving, and a shared antenna part, even though the frequencies are different, so there is no need to provide separate antennas for receiving and transmitting, and the circuit The configuration can be simplified and the size can be reduced.
〈実施例〉
図において、２は受信アンテナで、UHF帯及
びVHF帯のテレビジヨン放送信号を送受信でき
ると共にFM放送信号を送受信できるように構成
されたアンテナで、アンテナ共用部４を介して周
波数変換部６の入力側に接続されている。このア
ンテナ共用部４は、アンテナ２で受けたUHF帯
及びVHF帯のテレビジヨン放送音声信号を、周
波数変換部６に供給するためのハイパスフイルタ
と、周波数変換部６から出力されるFM放送帯の
信号（この信号の周波数は、VHF帯及びUHF帯
のテレビジヨン放送信号より低い周波数である。）
を出力増幅器８で増幅したものを、アンテナ２に
供給するためのローパスフイルタとを有してい
る。<Example> In the figure, reference numeral 2 denotes a receiving antenna, which is configured to be able to transmit and receive television broadcast signals in the UHF band and VHF band, as well as to transmit and receive FM broadcast signals. It is connected to the input side of section 6. This antenna common unit 4 includes a high-pass filter for supplying the UHF band and VHF band television broadcast audio signals received by the antenna 2 to the frequency conversion unit 6, and a high-pass filter for supplying the FM broadcast band audio signals output from the frequency conversion unit 6. signal (the frequency of this signal is lower than the television broadcast signal in the VHF and UHF bands)
It has a low pass filter for supplying the amplified signal to the antenna 2 by the output amplifier 8.
周波数変換部６は、アンテナ共用部４のハイパ
スフイルタを介して供給された様々なUHF帯及
びVHF帯のテレビジヨン放送信号のうち所定の
ものを選択する入力同調部１０を有している。入
力同調部１０で選択されたテレビジヨン放送音声
信号は、高周波増幅器１２で増幅されて混合部１
４に供給される。混合部１４には、局部発振部１
６からの局部発振信号も供給されており、高周波
増幅器１２からの出力信号と局部発振信号とを混
合して、高周波増幅器１２の出力信号を周波数変
換した出力信号を生成する。この出力信号が、
FM放送が行なわれている周波数帯内の予め定め
た周波数の信号となるように、局部発振部１６で
はその局部発振信号の周波数が選択される。この
選択は、入力同調部１０でのテレビジヨン放送音
声信号の選択と共に、選局部１８からの選局信号
によつて行なわれる。 The frequency conversion section 6 has an input tuning section 10 that selects a predetermined one from among various UHF band and VHF band television broadcast signals supplied via the high-pass filter of the antenna sharing section 4. The television broadcast audio signal selected by the input tuning section 10 is amplified by the high frequency amplifier 12 and sent to the mixing section 1.
4. The mixing section 14 includes a local oscillation section 1
A local oscillation signal from the high frequency amplifier 12 is also supplied, and the output signal from the high frequency amplifier 12 is mixed with the local oscillation signal to generate an output signal obtained by frequency converting the output signal of the high frequency amplifier 12. This output signal is
The local oscillation unit 16 selects the frequency of the local oscillation signal so that the signal has a predetermined frequency within the frequency band in which FM broadcasting is performed. This selection is performed by the selection of the television broadcast audio signal by the input tuning section 10 and by the channel selection signal from the channel selection section 18.
この混合部１４の周波数変換出力は、出力増幅
器８で増幅された後、アンテナ共用部４のローパ
スフイルタを介してアンテナ２に供給される。 The frequency-converted output of the mixing section 14 is amplified by the output amplifier 8 and then supplied to the antenna 2 via the low-pass filter of the antenna common section 4.
なお、図において２０はFM受信機で、例えば
車輌に設けられているカーラジオである。２２
は、FM受信機２０用のFM受信アンテナ、２４
は、FM受信機用のスピーカである。 In addition, in the figure, 20 is an FM receiver, for example, a car radio installed in a vehicle. 22
is the FM receiving antenna for the FM receiver 20, 24
is a speaker for an FM receiver.
この実施例では、アンテナ２で受けた各テレビ
ジヨン放送音声信号がアンテナ共用部４を介して
入力同調部１０に供給され、これらのうち選局部
１８の選局信号によつて選択されたものが、高周
波増幅器１２で増幅され、混合部１４に供給され
る。混合部１４には、選局部１８からの選局信号
によつて局部発振部１６が発生した局部発振信号
も供給されており、混合部１４は、高周波増幅器
１２の出力（入力同調部１０によつて選択された
テレビジヨン放送信号）をFM放送が行なわれて
いる周波数帯の特定の周波数に周波数変換する。
この変換出力は、出力増幅器８で増幅され、アン
テナ共用部４のローパスフイルタを介してアンテ
ナ２に供給され、送信される。 In this embodiment, each television broadcast audio signal received by the antenna 2 is supplied to the input tuning section 10 via the antenna common section 4, and the one selected by the channel selection signal of the channel selection section 18 is , and is amplified by the high frequency amplifier 12 and supplied to the mixing section 14. The mixing section 14 is also supplied with a local oscillation signal generated by the local oscillation section 16 in response to the tuning signal from the tuning section 18. (selected television broadcast signal) to a specific frequency in the frequency band in which FM broadcasting is performed.
This converted output is amplified by the output amplifier 8, supplied to the antenna 2 via the low-pass filter of the antenna common section 4, and transmitted.
この送信された送信出力は、FM受信アンテナ
２２で受信され、FM受信機２０で復調され、ス
ピーカ２４から放音される。FM受信機２０は、
当然にFM放送を受信して、スピーカ２４から放
音できるので、FM受信機２０によつてFM放送
とテレビジヨン放送の音声とを共にスピーカ２４
から聞くことができる。また、選局部１８からの
選局信号を変更すると、同様に他のテレビジヨン
放送信号の音声をFM受信機２０で受信すること
ができる。 This transmitted transmission output is received by the FM receiving antenna 22, demodulated by the FM receiver 20, and emitted from the speaker 24. The FM receiver 20 is
Naturally, the FM broadcast can be received and the sound can be emitted from the speaker 24, so the FM receiver 20 can transmit both the FM broadcast and the television broadcast sound to the speaker 24.
You can listen to it from Furthermore, by changing the channel selection signal from the channel selection section 18, the FM receiver 20 can similarly receive the audio of other television broadcast signals.
上記の実施例では、高周波増幅器１２や出力増
幅器８を設けたが、場合によつては不要である。
また、FM受信機２０は必らずしもカーラジオに
限る必要はない。 Although the high frequency amplifier 12 and the output amplifier 8 are provided in the above embodiment, they may not be necessary in some cases.
Furthermore, the FM receiver 20 is not necessarily limited to a car radio.
図はこの考案によるテレビジヨン放送信号再送
信装置の１実施例の回路図である。
２……アンテナ、４……アンテナ共用部、６…
…周波数変換部。
The figure is a circuit diagram of one embodiment of the television broadcast signal retransmission device according to this invention. 2...Antenna, 4...Antenna common area, 6...
...Frequency conversion section.
Claims (1)
FM放送が行われている周波数帯との電波を送受
信できる１台の共用アンテナと、この共用アンテ
ナで受けたテレビジヨン放送音声信号を上記FM
放送が行われている周波数帯の信号に周波数変換
して出力する周波数変換部と、上記共用アンテナ
と上記周波数変換部との間に介在し上記テレビジ
ヨン放送音声信号を上記周波数変換部に供給する
と共に上記周波数変換部の出力を上記共用アンテ
ナに供給するアンテナ共用部とを、具備するテレ
ビジヨン放送信号再送信装置。 Frequency band where television broadcasting is carried out
There is one shared antenna that can send and receive radio waves from the frequency band where FM broadcasting is performed, and the TV broadcast audio signal received by this shared antenna is transmitted to the above FM.
A frequency converter that converts the frequency of a signal into a signal in a frequency band in which broadcasting is performed and outputs the signal; and a frequency converter that is interposed between the shared antenna and the frequency converter and supplies the television broadcast audio signal to the frequency converter. and an antenna common unit that supplies the output of the frequency conversion unit to the common antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986159814U JPH0526856Y2 (en) | 1986-10-17 | 1986-10-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986159814U JPH0526856Y2 (en) | 1986-10-17 | 1986-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6368258U JPS6368258U (en) | 1988-05-09 |
| JPH0526856Y2 true JPH0526856Y2 (en) | 1993-07-07 |
Family
ID=31084602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986159814U Expired - Lifetime JPH0526856Y2 (en) | 1986-10-17 | 1986-10-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0526856Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631264A (en) * | 1986-06-20 | 1988-01-06 | Seiko Epson Corp | Television receiver |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57202261U (en) * | 1981-06-19 | 1982-12-23 |
-
1986
- 1986-10-17 JP JP1986159814U patent/JPH0526856Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS631264A (en) * | 1986-06-20 | 1988-01-06 | Seiko Epson Corp | Television receiver |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6368258U (en) | 1988-05-09 |
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