JPS5911542U - receiving device - Google Patents

receiving device

Info

Publication number
JPS5911542U
JPS5911542U JP10730382U JP10730382U JPS5911542U JP S5911542 U JPS5911542 U JP S5911542U JP 10730382 U JP10730382 U JP 10730382U JP 10730382 U JP10730382 U JP 10730382U JP S5911542 U JPS5911542 U JP S5911542U
Authority
JP
Japan
Prior art keywords
local oscillation
receiving device
band
oscillation frequency
variable capacitors
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.)
Granted
Application number
JP10730382U
Other languages
Japanese (ja)
Other versions
JPS636905Y2 (en
Inventor
洋一 根岸
勝己 石田
森園　彰
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP10730382U priority Critical patent/JPS5911542U/en
Publication of JPS5911542U publication Critical patent/JPS5911542U/en
Application granted granted Critical
Publication of JPS636905Y2 publication Critical patent/JPS636905Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Channel Selection Circuits, Automatic Tuning Circuits (AREA)
  • Superheterodyne Receivers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図乃至第３図はそれぞれ従来の受信装置を説明する
ために用いた図、第４図はこの考案に係る受信装置の一
実施例の要部を示す回路図、第５図は第４図の回路の動
作を説明するために用いた図である。 １１・・・ＦＭフロントエンド、１２・・・ラジオユニ
ット、１３１，１３２，１３３・・・アンチ丸部、１４
１．１４２，１４３・・・局部発振信号生成部、Ｓｌ乃
至Ｓ４・・・ＡＭ用バンド切換スイッチ、ＶＣｌ乃至Ｖ
Ｃ２・・・バリコン、ｃｏ・・・補償コンデンサ、Ｃ□
・・・結合容量、Ｌｏ・・・コイル。。1 to 3 are diagrams used to explain conventional receiving devices, FIG. 4 is a circuit diagram showing the main parts of an embodiment of the receiving device according to this invention, and FIG. FIG. 3 is a diagram used to explain the operation of the circuit shown in the figure. 11... FM front end, 12... Radio unit, 131, 132, 133... Anti-round part, 14
1.142,143... Local oscillation signal generation section, Sl to S4... AM band changeover switch, VCl to V
C2... Variable capacitor, co... Compensation capacitor, C□
...Coupling capacitance, Lo...Coil. .

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＦＭおよびＡＭ受信バンド毎にそれぞれ対応的に設けら
れる局部発振周波数可変用の第１および第２の可変容量
コンデンサと、この第２の可変容量コンデンサがＡＭ用
バンド切換スイッチを介して選択的に接続されることに
より各ＡＭ受信バンドに対応する局部発振周波信号生成
用の複数の局部発振信号生成部とを有する受信装置にお
いて、前記第２の可変容量コンデンサと前記ＡＭ用バン
ド切換スイッチとの間に、前記第１および第２の可変容
量コンデンサの結合容量により前記ＡＭ用バンド切換ス
イッチで選択される前記複数の局部発振信号生成部の容
量成分が前記第１の可変容量コンデンサに付加されるこ
とを阻止するインダクタンス素子を介在させ、ＦＭ受信
用の局部発振周波数の変化を防止するようにしたことを
特徴とする受信装置。First and second variable capacitors for varying the local oscillation frequency, which are provided correspondingly for each FM and AM reception band, and the second variable capacitors are selectively connected via an AM band selection switch. In the receiving device having a plurality of local oscillation signal generation units for generating local oscillation frequency signals corresponding to each AM reception band, there is a , the capacitance components of the plurality of local oscillation signal generation units selected by the AM band changeover switch are added to the first variable capacitor due to the coupling capacitance of the first and second variable capacitors. A receiving device characterized in that a blocking inductance element is interposed to prevent a change in a local oscillation frequency for FM reception.
JP10730382U 1982-07-15 1982-07-15 receiving device Granted JPS5911542U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10730382U JPS5911542U (en) 1982-07-15 1982-07-15 receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10730382U JPS5911542U (en) 1982-07-15 1982-07-15 receiving device

Publications (2)

Publication Number Publication Date
JPS5911542U true JPS5911542U (en) 1984-01-24
JPS636905Y2 JPS636905Y2 (en) 1988-02-27

Family

ID=30250766

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10730382U Granted JPS5911542U (en) 1982-07-15 1982-07-15 receiving device

Country Status (1)

Country Link
JP (1) JPS5911542U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0420558U (en) * 1990-06-13 1992-02-20

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0420558U (en) * 1990-06-13 1992-02-20

Also Published As

Publication number Publication date
JPS636905Y2 (en) 1988-02-27

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