JPS592419A - Tuning system of radio communication equipment - Google Patents
Tuning system of radio communication equipmentInfo
- Publication number
- JPS592419A JPS592419A JP11130382A JP11130382A JPS592419A JP S592419 A JPS592419 A JP S592419A JP 11130382 A JP11130382 A JP 11130382A JP 11130382 A JP11130382 A JP 11130382A JP S592419 A JPS592419 A JP S592419A
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- circuit
- switching relay
- converter
- noise
- 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
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Abstract
Description
【発明の詳細な説明】
通信機における同調回路の同調方式に関するものである
。従来、無線通信機の同調方法は、同調用のツマミを廻
わしてＳメータの指針が最大となるように調節していた
が、Ｓメータの指針はたえず変動しているだめ適確迅速
に最大値に合わせることが雛かしく、操作者の感に頼ら
なければならなかった。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tuning method for a tuning circuit in a communication device. Conventionally, the tuning method for wireless communication equipment was to turn the tuning knob so that the S meter pointer was at its maximum, but since the S meter pointer was constantly changing, it could be adjusted accurately and quickly to the maximum point. It was difficult to match the values, and the operator had to rely on his or her intuition.
本発明は、かかる点に鑑みてこれを解消するため行なわ
れたもので、同調操作の際にはパネル面Ｋ 設置ｒｊだ
スイッチによって、アンテナとスピーツノとを受信機の
同調回路および受信回路から一先ず切９離しておいて、
同調回路にノイズゼネレータを接続すると共に、同調回
路に設けたｎ個のコンデンサ或だはインダクタンスコイ
ルｔ ｌ）レーの接点或いはダイオードスイソチで選択
的にオンオフして演算回路からのｎビットのバイナリ−
コードまたはＢＣＤコードに対応させて、受信回路から
のノイズ出力を最大となるように自動的に調節する無線
通信機の同調方式を捺供することを目的とするものであ
る。The present invention has been made in order to solve this problem, and when performing a tuning operation, the antenna and the speaker are first connected from the tuning circuit and the receiving circuit of the receiver by using a switch installed on the panel surface. Keep them separated.
A noise generator is connected to the tuned circuit, and n capacitors or inductance coils provided in the tuned circuit are selectively turned on and off using relay contacts or diode switches to generate n-bit binary data from the arithmetic circuit.
The object of the present invention is to provide a tuning method for a wireless communication device that automatically adjusts the noise output from a receiving circuit to the maximum in accordance with the code or BCD code.
以下本発明の一実施例を図面について詳細に説明する。An embodiment of the present invention will be described in detail below with reference to the drawings.
図において、アンテナ端子１にはアンテナ（図示せず）
を結ぶと共に切換リレー２の可動接点ａに結線し、固定
接点Ｃは同調回路３を形成する結合用のインダクタンス
トランスＭＬの一次側・＼結線し、２次側コ・イルの中
間タップと受信回路４の入力側と結線する。In the figure, antenna terminal 1 has an antenna (not shown).
and the movable contact a of the switching relay 2, and the fixed contact C is connected to the primary side of the coupling inductance transformer ML that forms the tuned circuit 3, and is connected to the intermediate tap of the secondary side coil and the receiving circuit. Connect to the input side of 4.
同調回路３は、上記の結合用インダクタンストランスＭ
Ｌの２次側コイルと並列にコンデンサＣ，ＩＣ２・・・
Ｃｎが結線されていて、コンデンサＣ，，Ｃ２・・・Ｃ
ｎの他端は夫々リレーの接点Ｓ１＋Ｓ２・・・Ｓｎに結
線する。The tuning circuit 3 includes the coupling inductance transformer M
Capacitor C, IC2... in parallel with the secondary coil of L.
Cn is connected, and capacitors C,, C2...C
The other ends of n are connected to the contacts S1+S2...Sn of the relays, respectively.
なお、コンデンサの容量は、バイナリ−コードの場合、
Ｃｎ＋１はＣｎの２倍にとる。In addition, the capacitance of the capacitor is, in the case of binary code,
Cn+1 is taken to be twice Cn.
この実施例ではリレースイッチを用いているが、リレー
スイッチの代わシにダイオードスイッチを用いてもよい
。Although a relay switch is used in this embodiment, a diode switch may be used instead of the relay switch.
受信回路４の出力側は切換リレー２の同定接点ｄへ結線
し、可動接点ｅはスピーカ５へ結線する。The output side of the receiving circuit 4 is connected to the identification contact d of the switching relay 2, and the movable contact e is connected to the speaker 5.
受信回線４の他の出力側はＡ／Ｄ変換器６に結線し、φ
変換器６は演算回路７を介して上記リレースイッチＳ１
＋Ｓ２・・・Ｓｎのコイルへ結線すると共に、演算回路
７へは切換リレー２のコイルおよび押釦スイッチ９を結
線する。また、切換リレー２の可動接点すへはノイズゼ
ネレータ８を結線する。The other output side of the receiving line 4 is connected to the A/D converter 6, and φ
The converter 6 is connected to the relay switch S1 via the arithmetic circuit 7.
+S2...Sn are connected to the coils, and the switching relay 2 coil and push button switch 9 are connected to the arithmetic circuit 7. Further, a noise generator 8 is connected to the movable contact of the switching relay 2.
本発明の無線通信機は上記のように構成しであるので、
切換リレー２を上側へ倒すと、到来した信号電波はアン
テナ（図示せず）で受信されてアンテナ端子１より切換
リレー２の可動接点ａと固定接点Ｃを経て、同調回路３
と受信回路４および切換リレー２の固定接点ｄと可動接
点ｅをノΦりて、スピーカ５を鳴動させる。次に、同調
を最大にとるために押ボタンスイッチ９を押して、演算
回路７を介して切換リレー２を下側へ倒すと、ノイズゼ
ネレータ８から発生した特性の比較的平担なホワイトノ
イズは、切換リレー２の可動接点すと固定接点Ｃを通っ
て同調回路３に加えられ、更に受信回路４に供給されて
信号強度に相応する直流電圧をψ変換器６へ送出する。Since the wireless communication device of the present invention is configured as described above,
When the switching relay 2 is tilted upward, the incoming signal radio wave is received by an antenna (not shown), passes through the movable contact a and the fixed contact C of the switching relay 2 from the antenna terminal 1, and is sent to the tuning circuit 3.
The receiving circuit 4 and the fixed contact d and the movable contact e of the switching relay 2 are connected to make the speaker 5 sound. Next, in order to maximize the tuning, pushbutton switch 9 is pressed and switching relay 2 is pushed downward via arithmetic circuit 7, and the white noise, which has a relatively flat characteristic, is generated from noise generator 8. The signal is applied to the tuning circuit 3 through the movable contact and the fixed contact C of the switching relay 2, and further supplied to the receiving circuit 4, which sends a DC voltage corresponding to the signal strength to the ψ converter 6.
送出された直流電圧は、Ａ／Ｔ）変圧器６においてデジ
タル数値に変換して演算回路７に供給し、演錯１回路７
では０本のバイナリ−コードまたはＢＣＤコードとして
リレーＳ１＋Ｓ２・・・Ｓｎを選択的に閉成する。従っ
て、すＬ’Ｓ１＋Ｓ２ ・Ｓｏに結線されているコン
デンサＣＩ＋ Ｃ２・・・Ｃｎのうち選択的に閉成され
たコンデンサが結合用インダクタンストランスＭＬと並
列に接続されて、同調回路３が形成されることとなる。The sent DC voltage is converted into a digital value by an A/T transformer 6 and supplied to an arithmetic circuit 7.
Then, relays S1+S2...Sn are selectively closed as 0 binary code or BCD code. Therefore, the selectively closed capacitors among the capacitors CI+ C2...Cn connected to L'S1+S2 and So are connected in parallel with the coupling inductance transformer ML, forming a tuned circuit 3. It happens.
言い換えれば、演算回路７ｄ：ノイズゼネレータ９から
のホワイトノイズが最も強く受信できるように、ｎ木の
バイナリ−コードまだはＢＣＤコードを変化して、同調
回路３の静電容量を調節する。In other words, the arithmetic circuit 7d adjusts the capacitance of the tuning circuit 3 by changing the n-tree binary code or BCD code so that the white noise from the noise generator 9 can be received most strongly.
最大値に到達しだら、自動的に同ＭＩＭの動作は終了し
、切換リレー２の固定接点Ｃおよびｄは用動接点ａおよ
びｅに夫々つながって、最良の同調状態で受信ができる
。When the maximum value is reached, the operation of the MIM automatically ends, and the fixed contacts C and d of the switching relay 2 are connected to the working contacts a and e, respectively, so that reception can be performed in the best tuned state.
上記同調動作の間は、切換リレー２の固定接点ｄと可動
接点ｅとは切り離されているので、スピーカ５からはホ
ワイトノイズによる不快音は発生しない。During the tuning operation, the fixed contact d and the movable contact e of the switching relay 2 are disconnected, so that the speaker 5 does not generate any unpleasant sound due to white noise.
なお、押釦スイッチ９を押すことによって、次の同調動
作が開始される。Note that by pressing the push button switch 9, the next tuning operation is started.
以上に詳述したように、本発明の同調方式は、押ボタン
スイッチを押す極めて簡単な操作によって自動的に正確
迅速に同調をとることができるし、この間スピーカから
はノイズによる不快音を発生させない無線通信機の同調
方式を提供することができる。As detailed above, the tuning method of the present invention allows automatic, accurate and quick tuning by simply pressing a pushbutton switch, and during this time, the speaker does not generate unpleasant noise due to noise. A tuning method for a wireless communication device can be provided.
図は、本発明の一実施例を示した無線通信機の同調方式
のブロック図である。
１・・・アンテナ端子、２・・・切換リレー、３・・同
調回路、４・・・受信回路、５・・・スピーカ、６・・
Ａ／Ｄ変換器、７・・演算回路、８・・・ノイズゼネレ
ータ、９・・・押釦スイッチ、ＭＬ・・・給合用インダ
ククンストランス、ＣＩ、Ｃ２，・・・ｃｏ・同調用コ
ンデンサ、Ｓｌ 、 Ｓ２＋・・・Ｓｎ ・・同調用コ
ンデンサ選択リレースイッチ。
特許出願人 八重洲無線株式会社The figure is a block diagram of a tuning system for a wireless communication device showing an embodiment of the present invention. 1... Antenna terminal, 2... Switching relay, 3... Tuning circuit, 4... Receiving circuit, 5... Speaker, 6...
A/D converter, 7... Arithmetic circuit, 8... Noise generator, 9... Push button switch, ML... Supply inductance transformer, CI, C2,... co/Tuning capacitor, Sl , S2+...Sn... Tuning capacitor selection relay switch. Patent applicant Yaesu Musen Co., Ltd.
Claims (1)
ピーカからの音声を断とすると共に、受信機のアンテナ
入力をアンテナから切り離してノイズゼネレータに接続
し、受信回路からのノイズ出力が最大となるように、Ａ
／１）変換器、演算回路よりなる制御回路のバイナリ−
コードまだはＢＣＤコードに対応したコンデンサ或いは
インダクタンスコイルを選択的に同調回路に接続して、
自動的に調節することを特徴とする無線通信機の同調方
式。By operating a switch on the panel, the sound from the receiver's speaker is cut off, and the receiver's antenna input is disconnected from the antenna and connected to the noise generator, so that the noise output from the receiving circuit is maximized. In, A
/1) Binary control circuit consisting of converter and arithmetic circuit
Selectively connect a capacitor or inductance coil corresponding to the BCD code to the tuned circuit,
A tuning method for wireless communication equipment that is characterized by automatic adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11130382A JPS592419A (en) | 1982-06-28 | 1982-06-28 | Tuning system of radio communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11130382A JPS592419A (en) | 1982-06-28 | 1982-06-28 | Tuning system of radio communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS592419A true JPS592419A (en) | 1984-01-09 |
Family
ID=14557797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11130382A Pending JPS592419A (en) | 1982-06-28 | 1982-06-28 | Tuning system of radio communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS592419A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471515A (en) * | 1977-10-26 | 1979-06-08 | Philips Nv | Receiver having frequency synthesizer |
| JPS5661839A (en) * | 1979-10-24 | 1981-05-27 | Sharp Corp | Automatic tuning system for synthesizer tuner |
-
1982
- 1982-06-28 JP JP11130382A patent/JPS592419A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5471515A (en) * | 1977-10-26 | 1979-06-08 | Philips Nv | Receiver having frequency synthesizer |
| JPS5661839A (en) * | 1979-10-24 | 1981-05-27 | Sharp Corp | Automatic tuning system for synthesizer tuner |
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