JPS6244538U - - Google Patents
Info
- Publication number
- JPS6244538U JPS6244538U JP1985135904U JP13590485U JPS6244538U JP S6244538 U JPS6244538 U JP S6244538U JP 1985135904 U JP1985135904 U JP 1985135904U JP 13590485 U JP13590485 U JP 13590485U JP S6244538 U JPS6244538 U JP S6244538U
- Authority
- JP
- Japan
- Prior art keywords
- turned
- tuner
- switching element
- antenna circuit
- power supply
- 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
- 238000010586 diagram Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Landscapes
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案にかかるアンテナ回路の一実施
例を示す回路図。第２図は従来のアンテナ回路の
一実施例を示す回路図である。
１……延長コイル、２……アンテナ、３……チ
ユーナ、４……スイツチングダイオード、５，６
……電流制限用抵抗、７，８……逆流防止用ダイ
オード、９……チユーナのＶＨ駆動用電源端子、
１０……チユーナのＵＨＦ駆動用電源端子、１１
……チユーナのバンド切り換えスイツチ、１２…
…電源供給端子、１３……チユーナのＶＬ駆動用
電源端子、１４……直流阻止用コンデンサ。
FIG. 1 is a circuit diagram showing an embodiment of an antenna circuit according to the present invention. FIG. 2 is a circuit diagram showing an embodiment of a conventional antenna circuit. 1... Extension coil, 2... Antenna, 3... Tuner, 4... Switching diode, 5, 6
... Current limiting resistor, 7, 8... Diode for backflow prevention, 9... Tuner VH drive power supply terminal,
10...Tuner UHF drive power supply terminal, 11
...Chuyuna band change switch, 12...
...Power supply terminal, 13...Tuner VL drive power supply terminal, 14...DC blocking capacitor.
Claims (1)
ユーナ間に延長コイルを接続したアンテナ回路に
おいて、 (b) 前記チユーナの駆動用電源電圧によりＯＮ
・ＯＦＦするスイツチング素子を前記延長コイル
に並列に接続し、 (c) ＶＨＦハイチヤンネルまたはＵＨＦ受信時
には、前記チユーナのＶＨＦハイチヤンネルまた
はＵＨＦ駆動用電源電圧により、前記スイツチン
グ素子をＯＮさせ、 (d) ＶＨＦローチヤンネル受信時には、前記ス
イツチング素子をＯＦＦさせることを特徴とする
アンテナ回路。[Claims for Utility Model Registration] (a) In an antenna circuit in which an extension coil is connected between the antenna of a portable television receiver and a tuner, (b) an antenna circuit that is turned on by a power supply voltage for driving the tuner;
- A switching element to be turned off is connected in parallel to the extension coil, (c) when receiving a VHF high channel or UHF, the switching element is turned on by the VHF high channel or UHF drive power supply voltage of the tuner, (d) An antenna circuit characterized in that the switching element is turned off when receiving a VHF low channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985135904U JPS6244538U (en) | 1985-09-05 | 1985-09-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985135904U JPS6244538U (en) | 1985-09-05 | 1985-09-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6244538U true JPS6244538U (en) | 1987-03-18 |
Family
ID=31038531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985135904U Pending JPS6244538U (en) | 1985-09-05 | 1985-09-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6244538U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011035505A (en) * | 2009-07-30 | 2011-02-17 | Sony Ericsson Mobile Communications Ab | Antenna device, broadcast receiving device, and compound wireless device |
-
1985
- 1985-09-05 JP JP1985135904U patent/JPS6244538U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011035505A (en) * | 2009-07-30 | 2011-02-17 | Sony Ericsson Mobile Communications Ab | Antenna device, broadcast receiving device, and compound wireless device |
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