JPS63140728U - - Google Patents
Info
- Publication number
- JPS63140728U JPS63140728U JP3199087U JP3199087U JPS63140728U JP S63140728 U JPS63140728 U JP S63140728U JP 3199087 U JP3199087 U JP 3199087U JP 3199087 U JP3199087 U JP 3199087U JP S63140728 U JPS63140728 U JP S63140728U
- Authority
- JP
- Japan
- Prior art keywords
- automatic
- tuning
- sweeping
- sweep
- reception
- 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 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 238000010408 sweeping Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Channel Selection Circuits, Automatic Tuning Circuits (AREA)
Description
第１図は自動選局式受信機の全体回路図、第２
図はチユーニング制御部５の具体的回路図、第３
図は飛び越し選局等におけるオートチユーニング
処理のフローチヤートの図、第４図はオートチユ
ーニング時の最良受信点を示す図である。
２……アツプキー、３……ダウンキー、４……
数値キー、５……チユーニング制御部、８……Ｐ
ＷＭ信号変換回路、９……同調電圧発生回路、１
０……局部発振回路、１１……混合回路、１４…
…中間周波増幅回路、１５……検波回路、１８…
…同調検出回路、２１……制御回路、２２……同
調カウンタ、２３……立上りバツフア、２４……
立下りバツフア、２５……演算回路、２６……飛
び越しバツフア、２７……一致回路、２８……Ｓ
Ｄカウンタ。
Figure 1 is the overall circuit diagram of the automatic tuning receiver, Figure 2
The figure is a specific circuit diagram of the tuning control section 5.
The figure is a flowchart of auto-tuning processing in interleaved channel selection, etc., and FIG. 4 is a diagram showing the best reception point during auto-tuning. 2...Up key, 3...Down key, 4...
Numerical keys, 5...Tuning control section, 8...P
WM signal conversion circuit, 9... Tuning voltage generation circuit, 1
0...Local oscillation circuit, 11...Mixing circuit, 14...
...Intermediate frequency amplification circuit, 15...Detection circuit, 18...
... Tuning detection circuit, 21... Control circuit, 22... Tuning counter, 23... Rising buffer, 24...
Falling buffer, 25...Arithmetic circuit, 26...Jump buffer, 27...Coincidence circuit, 28...S
D counter.
Claims (1)
信を行う同調受信手段と、 上記局部発振回路からの発振信号の出力周波数
を自動的に掃引する自動掃引手段と、 上記同調受信手段が特定の放送電波に同調した
ことを検出する同調検出手段と、 この同調検出手段の検出結果に応じて、上記自
動掃引手段の自動掃引を停止させる第１の掃引停
止手段とを有する自動選局式受信機において、 所望する局が現在の同調受信手段の受信周波数
位置より何番目の局かを指定する指定手段と、 上記自動掃引手段による自動掃引の間に、上記
同調検出手段の検出回数を計数する計数手段と、 この計数手段の計数値が上記指定手段の指定値
に一致したか否かを判別する判別手段と、 この判別手段の判別結果に基づいて、上記自動
掃引手段の自動掃引を停止させる第２の掃引停止
手段と を有することを特徴とする自動選局式受信機。[Scope of Claim for Utility Model Registration] Tuned reception means for performing tuned reception based on an oscillation signal from the local oscillation circuit; automatic sweeping means for automatically sweeping the output frequency of the oscillation signal from the local oscillation circuit; It has a tuning detecting means for detecting that the tuning receiving means is tuned to a specific broadcast radio wave, and a first sweep stopping means for stopping the automatic sweeping of the automatic sweeping means according to the detection result of the tuning detecting means. In the automatic tuning type receiver, the tuning detection means includes a designation means for specifying the number of the desired station from the reception frequency position of the current tuning reception means, and an automatic sweep by the automatic sweeping means. a counting means for counting the number of detections; a determining means for determining whether the counted value of the counting means matches a value specified by the specifying means; and based on the determination result of the determining means, the automatic sweeping means 1. An automatic channel selection type receiver comprising: second sweep stop means for stopping automatic sweep.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199087U JPS63140728U (en) | 1987-03-06 | 1987-03-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3199087U JPS63140728U (en) | 1987-03-06 | 1987-03-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63140728U true JPS63140728U (en) | 1988-09-16 |
Family
ID=30838240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3199087U Pending JPS63140728U (en) | 1987-03-06 | 1987-03-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63140728U (en) |
-
1987
- 1987-03-06 JP JP3199087U patent/JPS63140728U/ja active Pending
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