JPS5920767U - AFT voltage selection circuit - Google Patents
AFT voltage selection circuitInfo
- Publication number
- JPS5920767U JPS5920767U JP11487982U JP11487982U JPS5920767U JP S5920767 U JPS5920767 U JP S5920767U JP 11487982 U JP11487982 U JP 11487982U JP 11487982 U JP11487982 U JP 11487982U JP S5920767 U JPS5920767 U JP S5920767U
- Authority
- JP
- Japan
- Prior art keywords
- sideband
- frequency band
- television
- aft voltage
- 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.)
- Pending
Links
Landscapes
- Television Receiver Circuits (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
第１図はＡＦＴ回路を備えた、従来のテレビジョン受像
機の要部回路図、第２図は本考案の一実施例に係るＡＦ
Ｔ電圧選択回路を備えたテレビジョン受像機の要部回路
図、第３図は上側波帯を一部残す残留側波帯方式のテレ
ビジョン信号に対応したＡＦＴ電圧の特性図、第４図は
下側波帯を１部残す残留側波帯方式のテレビジョン信号
に対応したＡＦＴ電圧の特性図である。
１４・・・・・・ＡＦＴ回路、ＳＷ２□、 ５Ｗ２２・
・・・・・５Ｗ２８・・・・・・周波数帯切換スイッチ
、ＴＲ１，ＴＲ２，ＴＲ３・・・・・・スイッチ回路、
Ｓ□、Ｓ２・・・・・・ＡＦＴ電圧。Fig. 1 is a circuit diagram of a main part of a conventional television receiver equipped with an AFT circuit, and Fig. 2 is an AF according to an embodiment of the present invention.
Figure 3 is a circuit diagram of the main part of a television receiver equipped with a T voltage selection circuit. Figure 3 is a characteristic diagram of the AFT voltage corresponding to a vestigial sideband television signal that leaves a portion of the upper sideband. FIG. 3 is a characteristic diagram of an AFT voltage corresponding to a television signal using a vestigial sideband method that leaves part of the lower sideband. 14...AFT circuit, SW2□, 5W22・
...5W28...Frequency band selection switch, TR1, TR2, TR3...Switch circuit,
S□, S2...AFT voltage.
Claims (1)
波帯方式のテレビジョン信号と、上側波帯をそのまま用
い下側波帯を一部残す第２の残留側波帯方式のテレビジ
ョン信号とを選択的に受信するテレビジョン受像機にお
いて、 前記第１、第２の残留側波帯方式のテレビジョン信号の
それぞれに対応した特性を持つＡＦＴ電圧を出力するＡ
ＦＴ回路と、 周波数帯切換スイッチで予め選択された受信チャンネル
の周波数帯に対応し、チューナに印加する周波数帯切換
電圧を選局操作により発生させる、各周波数帯毎のいず
れかの制御信号に基づいて、前記第１、第２の残留側波
帯方式のテレビジョン信号に対応した特性のＡＦＴ電圧
を選択するスイッチ回路とを備えたことを特徴とするＡ
ＦＴ電圧選択回路。[Claims for Utility Model Registration] A first vestigial sideband television signal that uses the upper sideband and the lower sideband as is, and a second television signal that uses the upper sideband as is and leaves a portion of the lower sideband. In a television receiver that selectively receives a vestigial sideband television signal, an AFT voltage having characteristics corresponding to each of the first and second vestigial sideband television signals is provided. A to output
Based on the FT circuit and one of the control signals for each frequency band, which corresponds to the frequency band of the reception channel selected in advance with the frequency band selection switch, and generates the frequency band switching voltage applied to the tuner by the channel selection operation. and a switch circuit for selecting an AFT voltage having characteristics corresponding to the first and second vestigial sideband type television signals.
FT voltage selection circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11487982U JPS5920767U (en) | 1982-07-30 | 1982-07-30 | AFT voltage selection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11487982U JPS5920767U (en) | 1982-07-30 | 1982-07-30 | AFT voltage selection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5920767U true JPS5920767U (en) | 1984-02-08 |
Family
ID=30265383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11487982U Pending JPS5920767U (en) | 1982-07-30 | 1982-07-30 | AFT voltage selection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5920767U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563186A (en) * | 1978-11-01 | 1980-05-13 | Sanyo Electric Co Ltd | Television picture receiver |
-
1982
- 1982-07-30 JP JP11487982U patent/JPS5920767U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5563186A (en) * | 1978-11-01 | 1980-05-13 | Sanyo Electric Co Ltd | Television picture receiver |
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