JPH045733U - - Google Patents
Info
- Publication number
- JPH045733U JPH045733U JP1990046261U JP4626190U JPH045733U JP H045733 U JPH045733 U JP H045733U JP 1990046261 U JP1990046261 U JP 1990046261U JP 4626190 U JP4626190 U JP 4626190U JP H045733 U JPH045733 U JP H045733U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- tuning
- mixer
- circuit
- tuner device
- 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 4
- 230000010355 oscillation Effects 0.000 description 1
Landscapes
- Noise Elimination (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の一実施例のブロツク図、第２
図はその要部の具体的回路図を含むブロツク図、
第３図は従来の一例のブロツク図である。
１……アンテナ、４……ＲＦ同調回路、５……
ミキサ、６……局部発振回路、７……ＩＦ同調回
路、１０……トラツプ回路、Ｄ１〜Ｄ３……可変
容量ダイオード。
Figure 1 is a block diagram of one embodiment of the present invention;
The figure is a block diagram including a specific circuit diagram of the main parts,
FIG. 3 is a block diagram of a conventional example. 1...Antenna, 4...RF tuning circuit, 5...
Mixer, 6...local oscillation circuit, 7...IF tuning circuit, 10...trap circuit, D1 to D3 ...variable capacitance diodes.
Claims (1)
変換してＩＦ周波数を得るチユーナ装置において
、 上記ミキサの前段に、チユーニング電圧で同調
周波数を可変できるトラツプ回路を設け、 該トラツプ回路の同調周波数をイメージ周波数
に設定した構成としてなるチユーナ装置。[Claims for Utility Model Registration] In a tuner device that obtains an IF frequency by converting the frequency of a radio wave signal received by an antenna using a mixer, a trap circuit that can vary the tuning frequency with a tuning voltage is provided in the front stage of the mixer, and the trap circuit A tuner device configured in such a way that the tuning frequency of the circuit is set to the image frequency.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990046261U JPH045733U (en) | 1990-04-27 | 1990-04-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990046261U JPH045733U (en) | 1990-04-27 | 1990-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH045733U true JPH045733U (en) | 1992-01-20 |
Family
ID=31561187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990046261U Pending JPH045733U (en) | 1990-04-27 | 1990-04-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH045733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997038525A1 (en) * | 1996-04-04 | 1997-10-16 | Sony Corporation | Television receiver |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53120213A (en) * | 1977-03-30 | 1978-10-20 | Hitachi Ltd | Vhf tuner |
| JPH01160738A (en) * | 1987-12-17 | 1989-06-23 | Fujitsu Ten Ltd | Constant speed running control device |
-
1990
- 1990-04-27 JP JP1990046261U patent/JPH045733U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53120213A (en) * | 1977-03-30 | 1978-10-20 | Hitachi Ltd | Vhf tuner |
| JPH01160738A (en) * | 1987-12-17 | 1989-06-23 | Fujitsu Ten Ltd | Constant speed running control device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1997038525A1 (en) * | 1996-04-04 | 1997-10-16 | Sony Corporation | Television receiver |
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