JPS63212223A - Radio receiver - Google Patents
Radio receiverInfo
- Publication number
- JPS63212223A JPS63212223A JP4633387A JP4633387A JPS63212223A JP S63212223 A JPS63212223 A JP S63212223A JP 4633387 A JP4633387 A JP 4633387A JP 4633387 A JP4633387 A JP 4633387A JP S63212223 A JPS63212223 A JP S63212223A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- reception
- band
- frequency
- automobile telephone
- 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
- 238000001514 detection method Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Circuits Of Receivers In General (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明はＦＭ／ＡＭラジオ受信機等の選局回路に関し、
特に、自動車用電話受信同調回路に自動切換え、同時に
録音出来るようにした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 a channel selection circuit for an FM/AM radio receiver, etc.
In particular, it relates to a receiver that is capable of automatic switching to a car telephone reception tuning circuit and recording at the same time.
本発明は、ラジオ受信機において、ラジオ受信中にアン
テナから自動車用電話周波数バンドの入力があったとき
、自動車用電話の受信希望周波数に自動的にアンテナか
ら自動車用電話受信同調回路を備えたことにより、複雑
な操作をすることなく、容易に自動車用電話の受信を行
なうものである。The present invention provides a radio receiver equipped with a car phone reception tuning circuit that automatically adjusts the reception desired frequency of the car phone from the antenna when a car phone frequency band is input from the antenna during radio reception. This allows you to easily receive calls from a car without any complicated operations.
近年、音声多重放送、自動車電話回線の実用化等多重無
線通信が増々発達する傾向にある。In recent years, multiplex wireless communications such as audio multiplex broadcasting and the practical use of car telephone lines have been increasingly developed.
このような場合、複数の受信機が必要となり、各受信機
毎に選局装置を備えると複数の選局装置を必要とし、経
済的に好ましくないことから、１台の受信機で複数の選
局回路を設けて複数の周波数のバンド例えばＦＭ及びＡ
Ｍバンド更にはＳＷバンド等の多ノメンド受信が可能と
なっているのが一般的である。このような数バンド受信
が可能な受信機においては、各バンド選択スイッチが設
けられ、′バンド選択スイッチの操作により１つの所望
バンドを選択した後、当該バンドに対応した選局スイッ
チの１つを操作して所望の同調周波数の選択を行なうよ
うになされている。In such a case, multiple receivers are required, and if each receiver is equipped with a channel selection device, multiple channel selection devices are required, which is not economically desirable. A station circuit is provided to handle multiple frequency bands such as FM and A.
Generally, it is possible to receive multiple signals such as the M band and even the SW band. In such a receiver capable of receiving several bands, each band selection switch is provided, and after selecting one desired band by operating the band selection switch, one of the tuning switches corresponding to the band is pressed. The desired tuning frequency is selected by operation.
このように従来の受信機においては、選局スイッチが受
信局数だけ必要となり、構造及び操作上の複雑さを伴っ
ていることから、更にこのような受信機に自動車電話用
周波数バンドの受信を可能とする為にはより一層の複雑
さを増すことになる。In this way, conventional receivers require as many channel selection switches as the number of receiving stations, and are complex in structure and operation. In order to make it possible, the complexity will increase even more.
本発明は、従来の多バンド受信機に自動車用電話受信同
調回路を設け、この自動車用電話受信周波数に自動的に
同調、解除するという第１の目的と、この自動車用電話
の受信内容を直ちに自動録音をする機能を設けるという
第２の目的をもった多バンドのラジオ受信機を提供する
ものである。The present invention has the first purpose of providing a conventional multi-band receiver with a car telephone reception tuning circuit, and automatically tuning to and canceling the reception frequency of the car phone, and immediately adjusting the received contents of the car phone. The present invention provides a multi-band radio receiver having a second purpose of providing an automatic recording function.
ラジオ受信機に、自動車用電話周波数バンドの入力があ
ったとき、自動的に自動車用電話の受信希望周波数にア
ンテナから自動車用電話受信同調回路を備えている。The radio receiver is equipped with a car phone reception tuning circuit which automatically adjusts the reception desired frequency of the car phone from the antenna when the car phone frequency band is input.
上記により、自動的に自動車用電話に切換わるので、複
雑な操作を必要としないでよい。Since the above method automatically switches to a car phone, no complicated operations are required.
以下、本発明の一実施例を図面に基づいて詳細に説明す
る。第２図は、一般的なラジオ受信機の選局装置の構成
例を示す要部ブロック図である。Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. FIG. 2 is a block diagram of main parts showing a configuration example of a channel selection device of a general radio receiver.
第２図において、アンテナ１で誘起された信号は高周波
増幅回路２によって増幅され、一方チヤンネル選択器４
によって制御される選局希望の局部発振周波数を局部発
振回路５で合成し、局部発振出力と高周波増幅回路の出
力とを混合器３で混合し、中間周波信号に変換された後
、中間周波増幅回路６に与えられる。そしてこの出力信
号は検波回路７で復調され、出力回路８を経て、出力装
置９に出力される。In FIG. 2, a signal induced by an antenna 1 is amplified by a high frequency amplifier circuit 2, while a channel selector 4
A local oscillation circuit 5 synthesizes the desired local oscillation frequency for tuning, which is controlled by applied to circuit 6. This output signal is then demodulated by the detection circuit 7, passed through the output circuit 8, and is output to the output device 9.
上記の受信回路Ａで用いられているラジオバンドチャン
ネルの出力周辺回路を共用し、上記受信回路に自動車電
話用周波数バンドの選択回路を備え、各受信バンド周波
数切換え回路等を追加し、容易に自動車電話周波数を受
信可能にしたものが第１図である。By sharing the radio band channel output peripheral circuit used in the above receiving circuit A, providing the above receiving circuit with a frequency band selection circuit for car telephones, and adding a frequency switching circuit for each receiving band, it is possible to easily Fig. 1 shows a system that can receive telephone frequencies.
第１図は本発明の実施例の回路ブロック図を示す。第１
図において、例えばアンテナ１でラジオを受信中、予め
自動車用電話バンド受信回路Ｂの自動車電話周波数選択
回路１３によって選択された自動車電話バンド周波数が
到来すると自動車電話受信周波数検出回路１２が働き、
受信バンド切換回路１１によりラジオバンド周波数から
自動車電話バンド周波数に切換えられ、同時に出力切換
回路１４によって自動車電話周波数出力回路に切換える
。又、この自動車電話受信周波数検出回路１２の出力が
一定時間途絶えた時、受信バンド切換え回路１１と出力
切換回路１４が自動的に働き、元の受信バンドに切換え
られ、更に上記検出回路１２の出力信号によって録音装
置駆動回路１５が働き、受信内容を録音し必要があれば
再生回路１６を設は直ちに受信内容を再生出来るよう回
路を構成する。FIG. 1 shows a circuit block diagram of an embodiment of the invention. 1st
In the figure, for example, while receiving radio with antenna 1, when a car phone band frequency selected in advance by car phone frequency selection circuit 13 of car phone band reception circuit B arrives, car phone reception frequency detection circuit 12 is activated.
The reception band switching circuit 11 switches from the radio band frequency to the car phone band frequency, and at the same time, the output switching circuit 14 switches to the car phone frequency output circuit. Also, when the output of the car phone reception frequency detection circuit 12 is interrupted for a certain period of time, the reception band switching circuit 11 and the output switching circuit 14 automatically operate to switch to the original reception band, and furthermore, the output of the detection circuit 12 is switched to the original reception band. The recording device driving circuit 15 is activated by the signal to record the received contents, and if necessary, a reproducing circuit 16 is configured so that the received contents can be immediately reproduced.
尚、第１図では２台の受信機を示したが、２台以上の受
信機に対しても本発明を適用し得ることはいうまでもな
い。Although two receivers are shown in FIG. 1, it goes without saying that the present invention can be applied to two or more receivers.
さらに、本発明の受信機では、従来のラジオバンド受信
中に自動車電話回線からの信号を受信出来るため、車載
用ラジオは勿論のこと、携帯用ラジオ受信機に適用する
ことにより、自動車以外の移動中の特定者への連絡に特
に有効なものである。Furthermore, since the receiver of the present invention can receive signals from a car telephone line during conventional radio band reception, it can be applied not only to car radios but also to portable radio receivers. This is especially effective for contacting specific people.
以上のように本発明によれば、自動車用電話周波数バン
ドの入力に応じて、ラジオ受信機を切り換えて自動車用
電話の受信希望周波数に自動的に同調しているので、複
雑な操作を必要とせず１回路を共用することにより簡略
化することのできる有用な自動車用電話に対応したラジ
オ受信機を提供できる。As described above, according to the present invention, the radio receiver is switched and automatically tuned to the desired receiving frequency of the car phone in response to the input of the car phone frequency band, thereby eliminating the need for complicated operations. Therefore, it is possible to provide a useful radio receiver compatible with a car telephone, which can be simplified by sharing one circuit.
第１図は本発明の一実施例を示す受信機の回路構成を示
すブロック図、第２図は一般的なラジオ受信機を示すブ
ロック図である。
１：アンテナ、２：高周波増幅回路、３：混合器、４ニ
ラジオバンドチャンネル選択器、５：局部発振回路、６
：中間周波増幅回路、７：検波回路、８：出力回路、９
：出力装置、１１：受信バンド切換回路、１２：自動車
用電話受信周波数検出回路、１３：自動車用電話周波数
選択回路、１４：出力切換回路、１５：録音装置駆動回
路、１６：録音／再生スイッチ回路、Ａニラジオバンド
受信回路、Ｂ：自動車電話バンド受信回路。FIG. 1 is a block diagram showing the circuit configuration of a receiver showing an embodiment of the present invention, and FIG. 2 is a block diagram showing a general radio receiver. 1: Antenna, 2: High frequency amplifier circuit, 3: Mixer, 4 radio band channel selector, 5: Local oscillation circuit, 6
: intermediate frequency amplifier circuit, 7: detection circuit, 8: output circuit, 9
: Output device, 11: Receiving band switching circuit, 12: Automobile telephone receiving frequency detection circuit, 13: Automobile telephone frequency selection circuit, 14: Output switching circuit, 15: Recording device drive circuit, 16: Recording/playback switch circuit , A: Radio band receiving circuit, B: Car telephone band receiving circuit.
Claims (1)
ら自動車用電話周波数バンドの入力があったとき、自動
車用電話の受信希望周波数に自動的に同調する自動車用
電話受信同調回路を備えたことを特徴とするラジオ受信
機。 ２、前記自動車電話同調回路に自動車用電話受信の際、
受信信号検知後、直ちに録音テープに内容を録音する機
能を設けたことを特徴とする特許請求の範囲第１項記載
のラジオ受信機。[Claims] 1. In a radio receiver, when an automotive telephone frequency band is input from the antenna during radio reception, an automotive telephone reception tuning circuit that automatically tunes to the desired reception frequency of the automotive telephone. A radio receiver characterized by comprising: 2. When receiving a car phone in the car phone tuning circuit,
2. The radio receiver according to claim 1, further comprising a function of recording the content on a recording tape immediately after detecting the received signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4633387A JPS63212223A (en) | 1987-02-27 | 1987-02-27 | Radio receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4633387A JPS63212223A (en) | 1987-02-27 | 1987-02-27 | Radio receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63212223A true JPS63212223A (en) | 1988-09-05 |
Family
ID=12744213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4633387A Pending JPS63212223A (en) | 1987-02-27 | 1987-02-27 | Radio receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63212223A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5799040A (en) * | 1980-12-11 | 1982-06-19 | Sanyo Electric Co Ltd | Radio receiver |
| JPS6043042B2 (en) * | 1979-07-13 | 1985-09-26 | 日清製油株式会社 | Novel esterification products and cosmetics and external preparations containing them |
-
1987
- 1987-02-27 JP JP4633387A patent/JPS63212223A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6043042B2 (en) * | 1979-07-13 | 1985-09-26 | 日清製油株式会社 | Novel esterification products and cosmetics and external preparations containing them |
| JPS5799040A (en) * | 1980-12-11 | 1982-06-19 | Sanyo Electric Co Ltd | Radio receiver |
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