JPS60103946U - AM receiver - Google Patents
AM receiverInfo
- Publication number
- JPS60103946U JPS60103946U JP19632483U JP19632483U JPS60103946U JP S60103946 U JPS60103946 U JP S60103946U JP 19632483 U JP19632483 U JP 19632483U JP 19632483 U JP19632483 U JP 19632483U JP S60103946 U JPS60103946 U JP S60103946U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- intermediate frequency
- output
- frequency amplifier
- detection circuit
- 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
Links
- 238000001514 detection method Methods 0.000 claims description 5
- 239000000919 ceramic Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
- Noise Elimination (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
一第１図は従来のＰＬＬ電子同調方式のＡＭ受信機のブ
ロック図、第２図は本考案によるＰ圧電子同調方式のＡ
Ｍ受信機のブロック図、第３図は中間周波フィルタが１
段のときの周波数特性図、第４図は中間周波フィルタが
２段のときの周波数特性図である。
１・・・アンテナ、２・・・高周波増幅器、３・・・ミ
キサ、４・・・第１の中間周波フィルタ、５・・・中間
周波増幅器、６・・・検波回路、７・・・オーディオ出
力、８・・・局部発振器、９・・・発振器バッファ回路
、１０・・・ＰＬＬ回路、１１・・・オートチューニン
グ釦、１２・・・コントロールＩＣ，１３・・・第２の
中間周波フィルタ、１４・・・ＳＤ回路、１５・・・ミ
ューティング信号出力、１６・・・オートチューニング
中の信号径路を示す矢印、１７・・・受信信号の信号径
路を示す矢印、１８・・・ＳＷ１制御釦、１９・・・Ｓ
Ｗ２制御部、２０・・・レベル検知器、２１・・・比較
回路、ＳＷ□、ＳＷ２・・・スイッチ。Figure 1 is a block diagram of an AM receiver using a conventional PLL electronic tuning system, and Figure 2 is a block diagram of an AM receiver using a PLL electronic tuning system according to the present invention.
The block diagram of the M receiver, Figure 3, has one intermediate frequency filter.
FIG. 4 is a frequency characteristic diagram when the intermediate frequency filter has two stages. DESCRIPTION OF SYMBOLS 1... Antenna, 2... High frequency amplifier, 3... Mixer, 4... First intermediate frequency filter, 5... Intermediate frequency amplifier, 6... Detection circuit, 7... Audio Output, 8... Local oscillator, 9... Oscillator buffer circuit, 10... PLL circuit, 11... Auto tuning button, 12... Control IC, 13... Second intermediate frequency filter, 14... SD circuit, 15... Muting signal output, 16... Arrow showing signal path during auto-tuning, 17... Arrow showing signal path of received signal, 18... SW1 control button , 19...S
W2 control unit, 20...level detector, 21...comparison circuit, SW□, SW2...switch.
Claims (1)
回路によってオン−オフ制御される第１のスイッチ、上
記中間周波増幅器の出力側に接続されたセラミック・フ
ィルタ、入力を上記セラミック・フィルタの出力、第１
の出力を上記検波回路の入力、第２の出力をストップ使
信号を発生するＳＤ回路の入力に接続され、第２の制御
回路によって制御される第２のスイッチ、中間周波増幅
器の中間周波信号を検波し、その■成分レベルを検知す
るレベル検知回路、該レベル検知回路の出力を予め定め
られた電圧と比較する比較回路を具備し、上記第１およ
び第２のスイッチがそれぞれ第１および第２の制御回路
を通じてコントロールＩＣからミューティング信号によ
っても上記比較回路の出力によっても制御されるオート
チューニング回路を備えることを特徴とす６ＡＭ受信機
。a first switch connected between the intermediate frequency amplifier and the detection circuit and controlled on-off by a first control circuit; a ceramic filter connected to the output side of the intermediate frequency amplifier; and a ceramic filter connected to the output side of the intermediate frequency amplifier; The output of the first
A second switch is connected to the input of the detection circuit, the second output is connected to the input of the SD circuit that generates the stop signal, and is controlled by the second control circuit, which outputs the intermediate frequency signal of the intermediate frequency amplifier. a level detection circuit for detecting the level of the component; and a comparison circuit for comparing the output of the level detection circuit with a predetermined voltage; A 6AM receiver comprising an auto-tuning circuit that is controlled both by a muting signal from a control IC through a control circuit and by the output of the comparison circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19632483U JPS60103946U (en) | 1983-12-22 | 1983-12-22 | AM receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19632483U JPS60103946U (en) | 1983-12-22 | 1983-12-22 | AM receiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60103946U true JPS60103946U (en) | 1985-07-16 |
| JPH0132432Y2 JPH0132432Y2 (en) | 1989-10-04 |
Family
ID=30421272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19632483U Granted JPS60103946U (en) | 1983-12-22 | 1983-12-22 | AM receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60103946U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8858588B2 (en) | 2010-10-11 | 2014-10-14 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US8939997B2 (en) | 2010-10-11 | 2015-01-27 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US8979891B2 (en) | 2010-12-15 | 2015-03-17 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US9339270B2 (en) | 2010-10-11 | 2016-05-17 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US9375219B2 (en) | 2009-12-22 | 2016-06-28 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
-
1983
- 1983-12-22 JP JP19632483U patent/JPS60103946U/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9375219B2 (en) | 2009-12-22 | 2016-06-28 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US8858588B2 (en) | 2010-10-11 | 2014-10-14 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US8939997B2 (en) | 2010-10-11 | 2015-01-27 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US9339270B2 (en) | 2010-10-11 | 2016-05-17 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
| US8979891B2 (en) | 2010-12-15 | 2015-03-17 | Cook Medical Technologies Llc | Medical devices with detachable pivotable jaws |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0132432Y2 (en) | 1989-10-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS60103946U (en) | AM receiver | |
| US4627100A (en) | Wide band radio receiver | |
| JPS60103945U (en) | AM receiver | |
| JPS6223162Y2 (en) | ||
| JPS6238354Y2 (en) | ||
| JPS6218982Y2 (en) | ||
| JPS6017952Y2 (en) | FM tuner | |
| JPS6246354Y2 (en) | ||
| JPS6324671Y2 (en) | ||
| JPS60180148U (en) | radio receiver | |
| JPS6129587B2 (en) | ||
| JPS60180150U (en) | radio receiver | |
| JP2572471Y2 (en) | FM stereo receiver | |
| JPS58119244U (en) | radio receiver | |
| JPS60184342U (en) | AFC device for FM television broadcasting | |
| JPS5967048U (en) | Tuning operation circuit in radio receiver | |
| JPS58119245U (en) | radio receiver | |
| JPS59189332U (en) | PLL receiver | |
| JPS6329446B2 (en) | ||
| JPS62260417A (en) | Receiver | |
| JPS60160639U (en) | Radio receiver switching circuit | |
| JPS6137621U (en) | Receiver AGC circuit | |
| JPS58186232A (en) | Signal detecting circuit of superheterodyne receiver | |
| JPS60180149U (en) | radio receiver | |
| JPS6098707A (en) | Fm detection circuit |