JPS5962279A - Sound multiplex receiver - Google Patents
Sound multiplex receiverInfo
- Publication number
- JPS5962279A JPS5962279A JP58158626A JP15862683A JPS5962279A JP S5962279 A JPS5962279 A JP S5962279A JP 58158626 A JP58158626 A JP 58158626A JP 15862683 A JP15862683 A JP 15862683A JP S5962279 A JPS5962279 A JP S5962279A
- Authority
- JP
- Japan
- Prior art keywords
- band
- demodulator
- output
- multiplex
- receiving
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/60—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals
- H04N5/607—Receiver circuitry for the reception of television signals according to analogue transmission standards for the sound signals for more than one sound signal, e.g. stereo, multilanguages
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Television Receiver Circuits (AREA)
- Stereo-Broadcasting Methods (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はＦＭ帯およびＴＶ帯を連続して受信できるフロ
ントエンドチューナを用いた音声多重受信機に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an audio multiplex receiver using a front-end tuner that can continuously receive FM band and TV band.
従来例の構成とその問題点
第１図に従来のこの種受信機の構成を示す。図中、１は
フロントエンドチューナで、ＦＭ帯８６〜９０ＭＨｚと
、ＴＶ帯の第１チヤンネルの音声周波数９５．７５ＭＨ
ｚとが近接し連続していることより、ＦＭ帯からＴＶ帯
を連続して受信できるように構成されている。２は周波
数制御回路で、チューナ１の周波数をＦＭ帯からＴＶ帯
まで連続して制御することができる。３は中間周波増幅
回路、４はＦＭ検波回路、６はＦＭステレオ復調器、６
はＴＶ多重復調器、７は音量調整用可変抵抗器、８は低
周波増幅器、９はスピーカ、また、Ｓｌ、Ｓ２はＦＭ帯
とＴＶ帯を切換えるスイッチで、一方のスイッチＳ１は
ＦＭ検波回路４の出力信号をＦＭステレオ復調器５とＴ
Ｖ多重復調器６とに切換えて供給するものであり、他方
のスイッチＳ２はそれぞれの復調器出力を切換えて可変
抵抗器７を介し低周波増幅器８に供給するものである。Conventional configuration and its problems FIG. 1 shows the configuration of a conventional receiver of this type. In the figure, 1 is a front end tuner, which has an audio frequency of 86 to 90 MHz in the FM band and 95.75 MHz in the first channel of the TV band.
z are close and continuous, so that the FM band to TV band can be continuously received. 2 is a frequency control circuit that can continuously control the frequency of the tuner 1 from the FM band to the TV band. 3 is an intermediate frequency amplification circuit, 4 is an FM detection circuit, 6 is an FM stereo demodulator, 6
is a TV multiplex demodulator, 7 is a variable resistor for volume adjustment, 8 is a low frequency amplifier, 9 is a speaker, and Sl and S2 are switches for switching between the FM band and TV band, and one switch S1 is the FM detection circuit 4. The output signal of FM stereo demodulator 5 and T
The other switch S2 switches and supplies the respective demodulator outputs to the low frequency amplifier 8 via the variable resistor 7.
しかるに上記従来の受信機でｉ−Ｊ：ＦＭ帯、ＴＶ帯の
切換機構が必要であり、操作が面倒であるという欠点が
あった。However, the above-mentioned conventional receiver requires a switching mechanism between the i-J:FM band and TV band, and has the drawback of being cumbersome to operate.
発明の目的
本発明はとの」；うな従来の欠点を除去するものであり
、ＦＭ帯、ＴＶ帯の切換操作をなくし、使用者の操作の
便をよくすることができる音声多重受信機を提供するこ
とを目的とする。OBJECTS OF THE INVENTION The present invention eliminates the disadvantages of the prior art and provides an audio multiplex receiver that eliminates the need to switch between the FM band and TV band, thereby improving the convenience of operation for the user. The purpose is to
発明の構成
本発明は、」二記の目的を達成するだめ、周波数制御部
からの出力を取り込みＦＭ帯かｒｖｌＢかの受信状態を
判別する手段を設けこの判別手段の出力信号によりＦＭ
ステレオ復調器、ＴＶ多重彷調器のいずれか一方を動作
状態に制御するように構成したことを特長とするもので
ある。Structure of the Invention In order to achieve the above objects, the present invention provides a means for taking in the output from the frequency control section and determining whether the reception state is FM band or rvlB.
The present invention is characterized in that it is configured to control either the stereo demodulator or the TV multiplexer into an operating state.
実施例の説明
第２図は本発明の一実施例を示しており、図中第１図と
同一機能を有するブロックには同一番号を伺す。DESCRIPTION OF THE EMBODIMENTS FIG. 2 shows an embodiment of the present invention, in which blocks having the same functions as those in FIG. 1 are designated by the same numbers.
第２図の特徴とする点は従来におけるスイッチＳ１．Ｓ
２を廃止スル一方、ＦＭ、ＴＶ判別装置１゜を設け、周
波数制御回路２の出力を入力して、現在ＦＭ帯を受信し
ているのか、ＴＶ帯を受信して判別信号をＦＭステレオ
復調器５およびＴＶ多重復調器６に加えて、ＥＭ帯受信
のときはＦＭステレオ復調器５を動作状態にする一方、
ＴＶ多重復調器６を非動作状態にする。逆にＴＶ帯受信
のときはＦＭ、ＴＶ判別装置１０の出力にてＴＶ多重復
調器６を動作状態にする一方、ＦＭステレオ復調器５を
非動作状態とするものである。The feature of FIG. 2 is that the conventional switch S1. S
On the other hand, an FM/TV discriminator 1 is provided, which inputs the output of the frequency control circuit 2, and determines whether the FM band is currently being received or receives the TV band and sends the discrimination signal to the FM stereo demodulator. 5 and the TV multiplex demodulator 6, the FM stereo demodulator 5 is activated when receiving the EM band, while
The TV multiplex demodulator 6 is made inactive. Conversely, when receiving a TV band, the TV multiplex demodulator 6 is activated by the output of the FM/TV discriminator 10, while the FM stereo demodulator 5 is inactivated.
これにより、いずれかの出力が可変抵抗器７、低周波増
幅器８を介してスピーカ９より出力される。As a result, one of the outputs is output from the speaker 9 via the variable resistor 7 and the low frequency amplifier 8.
発明の効果
以上述−＼だように本発明によれば、ＦＭ帯を受信して
いるか、’ｒ ｖ帯を受信しているかを自動的に判別し
、その判別出力信号によりＦＭステレオ復調器、ＴＶ多
重復調器を制卸しているため、従来の切換操作が不要と
なり、周波数を調整するたけでＦＭ帯・ＴＶ帯を連続し
て自動的に受信することができる。しだがって、使用者
はＴＶ帯、ＦＭ帯の切換操作が不要となり、周波数８Ｉ
４整のみの簡便な操作でＦＭ帯、ＴＶ帯のいずれも受信
できる。Effects of the Invention As described above, according to the present invention, it is automatically determined whether the FM band or the 'RV band is being received, and the FM stereo demodulator, Since the TV multiplex demodulator is controlled, there is no need for conventional switching operations, and the FM band and TV band can be automatically received continuously by simply adjusting the frequency. Therefore, the user does not need to switch between the TV band and FM band, and the frequency 8I
You can receive both FM band and TV band with simple operation of 4 settings.
第１図は従来の音声多重受信機のブロック図、第２図は
本発明の一実施例における音声多重受信（幾のブロック
図である。
１・・・・フロントエンドチューナ、２・・・周波数制
御回路、５・・・・ＦＭステレオ復調器、６・・・・・
ＴＶ多重復Ｍｕｄ器、８・・・・・・低周波増幅器。FIG. 1 is a block diagram of a conventional audio multiplex receiver, and FIG. 2 is a block diagram of an audio multiplex receiver according to an embodiment of the present invention. 1... Front-end tuner, 2... Frequency Control circuit, 5...FM stereo demodulator, 6...
TV multiplex/demultiplexer, 8...Low frequency amplifier.
Claims (1)
このチューナの周波数制御部と、上記ＦＭ帯におけるＦ
Ｍステレオ復調器および上記ＴＶ帯におけるＴＶ多重復
調器を備えてなり、前記周波数制御部からの出力により
ＦＭ帯を受信しているかＴＶ帯を受信しているかを判別
する手段を設け、この判別手段の判別出力信号により前
記ＦＭステレオ復調器、ＴＶ多重復調器のいずれか一方
を動作状態に制御する」：うに構成したことを特徴とす
る音声多重受信機。A tuner that can continuously receive FM and TV bands,
The frequency control section of this tuner and the F in the above FM band.
an M stereo demodulator and a TV multiplex demodulator for the TV band, and means for determining whether the FM band or the TV band is being received based on the output from the frequency control section; An audio multiplex receiver characterized in that it is configured to: control either the FM stereo demodulator or the TV multiplex demodulator to an operating state based on the discrimination output signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58158626A JPS5962279A (en) | 1983-08-30 | 1983-08-30 | Sound multiplex receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58158626A JPS5962279A (en) | 1983-08-30 | 1983-08-30 | Sound multiplex receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5962279A true JPS5962279A (en) | 1984-04-09 |
Family
ID=15675816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58158626A Pending JPS5962279A (en) | 1983-08-30 | 1983-08-30 | Sound multiplex receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5962279A (en) |
-
1983
- 1983-08-30 JP JP58158626A patent/JPS5962279A/en active Pending
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