JPS59106266U - television receiver - Google Patents
television receiverInfo
- Publication number
- JPS59106266U JPS59106266U JP57083U JP57083U JPS59106266U JP S59106266 U JPS59106266 U JP S59106266U JP 57083 U JP57083 U JP 57083U JP 57083 U JP57083 U JP 57083U JP S59106266 U JPS59106266 U JP S59106266U
- Authority
- JP
- Japan
- Prior art keywords
- frequency
- intermediate frequency
- audio
- television receiving
- video
- 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) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来のテレビジョン受信装置を示すブロック
図、第２図は、第１図の装置におけるＳＡＷフィルタ３
の周波数特性を示すグラフ、第３図は、本考案の一実施
例を示す回路ブロック図、第４図は、第３図の装置にお
ける逆ナイキストフィルタ９の周波数特性を示すグラフ
、第５図は、他の実施例の一部を示す回路図である。
主要部分の符号の説明、１・・・・・・アンテナ、２・
・・・・・チューナ回路、３・・・・・・ＳＡＷフィル
タ、４・・・・・・映像中間周波増幅回路、５・・・・
・・映像検波回路、６・・・・・・音声インターキャリ
ヤ検波回路、７・・・・・・音声中間周波増幅回路、８
・・・・・・ＦＭ検波回路、９・・・・・・逆ナイキス
トフィルタ。FIG. 1 is a block diagram showing a conventional television receiving device, and FIG. 2 is a SAW filter 3 in the device shown in FIG.
3 is a circuit block diagram showing an embodiment of the present invention, FIG. 4 is a graph showing the frequency characteristics of the inverse Nyquist filter 9 in the device of FIG. 3, and FIG. FIG. 2 is a circuit diagram showing a part of another embodiment. Explanation of symbols of main parts, 1... Antenna, 2.
... Tuner circuit, 3 ... SAW filter, 4 ... Video intermediate frequency amplification circuit, 5 ...
...Video detection circuit, 6...Audio intercarrier detection circuit, 7...Audio intermediate frequency amplification circuit, 8
...FM detection circuit, 9...Inverse Nyquist filter.
Claims (1)
利得が所定の傾きをもって増大するような周波数特性を
有する中間周波増幅手段によって増幅された映像中間周
波信号及び音声中間周波信号を混合して映像搬送波と音
声搬送波の周波数差の中間周波信号を発生する周波数混
合手段の出力をＦＭ検波することによって音声検波出力
信号を得るテレビジョン受信装置であって、前記中間周
波増幅手段の周波数特性と逆の周波数特性を有しかつ前
記周波数混合手段の前段に設けられたフィルタ手段を含
むことを特徴とするテレビジョン受信装置。A video intermediate frequency signal and an audio intermediate frequency signal amplified by an intermediate frequency amplifying means having frequency characteristics such that the gain increases with a predetermined slope as the frequency increases in the vicinity of the video intermediate frequency are mixed to produce a video carrier wave and an audio carrier wave. A television receiving device that obtains an audio detection output signal by performing FM detection on the output of a frequency mixing means that generates an intermediate frequency signal with a frequency difference of A television receiving apparatus characterized in that the television receiving apparatus further includes a filter means provided upstream of the frequency mixing means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57083U JPS59106266U (en) | 1983-01-07 | 1983-01-07 | television receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57083U JPS59106266U (en) | 1983-01-07 | 1983-01-07 | television receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59106266U true JPS59106266U (en) | 1984-07-17 |
Family
ID=30132322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57083U Pending JPS59106266U (en) | 1983-01-07 | 1983-01-07 | television receiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59106266U (en) |
-
1983
- 1983-01-07 JP JP57083U patent/JPS59106266U/en active Pending
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