JPH0249237U - - Google Patents
Info
- Publication number
- JPH0249237U JPH0249237U JP12868288U JP12868288U JPH0249237U JP H0249237 U JPH0249237 U JP H0249237U JP 12868288 U JP12868288 U JP 12868288U JP 12868288 U JP12868288 U JP 12868288U JP H0249237 U JPH0249237 U JP H0249237U
- Authority
- JP
- Japan
- Prior art keywords
- reception state
- switching circuit
- receiving
- antenna
- state switching
- 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
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図はこの考案の一実施例を示す回路構成図
、第２図はこの考案の他の実施例を示す回路構成
図である。
ＦＥＤ……フロントエンド、Ｒ１〜Ｒ１０……
抵抗、Ｑ１〜Ｑ５……トランジスタ、Ｓ１，Ｓ２
……スイツチ、Ｑ……マイコン、ＲＡＭ……メモ
リ。
FIG. 1 is a circuit diagram showing one embodiment of this invention, and FIG. 2 is a circuit diagram showing another embodiment of this invention. FED...Front end, R1 to R10 ...
Resistance, Q1 to Q5 ...Transistor, S1 , S2
...Switch, Q...Microcomputer, RAM...Memory.
Claims (1)
する信号に同調したのち、ＩＦ信号を出力するフ
ロントエンドとを備える受信状態切換回路におい
て、前記アンテナおよびフロントエンドとの接続
点と接地間に接続し、受信状態に基づいて切り換
え駆動するアツテネータとからなる受信状態切換
回路。 (2) アンテナからの受信信号に同調し、局部発
振器の発振周波数とによりＩＦ周波数を生成する
フロントエンドと、このフロントエンドをコント
ロールし、予めメモリした複数の受信局のうち、
希望局を読み出して選局するメモリ選局手段とを
備える受信状態切換回路において、前記メモリ選
局手段に受信局の情報をメモリするときに、受信
局毎の受信状態に基づいて前記フロントエンドの
入力のアツテネート量をメモリし、メモリによる
選局に対応した状態で前記フロントエンドの入力
をアツテネートする手段とからなる受信状態切換
回路。[Claims for Utility Model Registration] (1) In a reception state switching circuit comprising an FM antenna and a front end that outputs an IF signal after tuning to a signal input to the antenna, A reception state switching circuit consisting of an attenuator connected between the connection point of the terminal and ground, and switched and driven based on the reception state. (2) A front end that tunes to the received signal from the antenna and generates an IF frequency based on the oscillation frequency of the local oscillator, and a plurality of receiving stations that control this front end and are stored in advance.
In a receiving state switching circuit comprising memory tuning means for reading out and selecting a desired station, when storing receiving station information in the memory tuning means, the reception state of the front end is changed based on the reception state of each receiving station. A receiving state switching circuit comprising means for storing an input attenuation amount and attenuating the input of the front end in a state corresponding to channel selection by the memory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12868288U JPH0249237U (en) | 1988-09-30 | 1988-09-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12868288U JPH0249237U (en) | 1988-09-30 | 1988-09-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0249237U true JPH0249237U (en) | 1990-04-05 |
Family
ID=31382250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12868288U Pending JPH0249237U (en) | 1988-09-30 | 1988-09-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0249237U (en) |
-
1988
- 1988-09-30 JP JP12868288U patent/JPH0249237U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0389012B1 (en) | Broadcast receiver for radio or television signals, including a memory for storing preset stations | |
| JPH0249237U (en) | ||
| US3761822A (en) | Multiple receiver selection system | |
| JP2529367B2 (en) | Electronic tuner | |
| JPS6112410B2 (en) | ||
| JPH036337U (en) | ||
| JPS60172446U (en) | Receiving machine | |
| JPS6127228Y2 (en) | ||
| JPH0623322U (en) | Radio receiver | |
| JPH0533069Y2 (en) | ||
| JPS5846589Y2 (en) | radio receiver | |
| JPH0422577Y2 (en) | ||
| JPS5864819A (en) | Radio receiver | |
| JPS5938750Y2 (en) | synthesizer receiver | |
| JPS6123870Y2 (en) | ||
| JPS6364121U (en) | ||
| JPH0446721U (en) | ||
| JPH063867B2 (en) | Preset type car radio receiver | |
| JPS6364122U (en) | ||
| JPS5933330U (en) | radio receiver | |
| JPS60233940A (en) | Traffic information reception system | |
| JPS62178618U (en) | ||
| JPH0351530U (en) | ||
| JPH0153934B2 (en) | ||
| JPH02141142U (en) |