JPH0181073U - - Google Patents
Info
- Publication number
- JPH0181073U JPH0181073U JP1987175952U JP17595287U JPH0181073U JP H0181073 U JPH0181073 U JP H0181073U JP 1987175952 U JP1987175952 U JP 1987175952U JP 17595287 U JP17595287 U JP 17595287U JP H0181073 U JPH0181073 U JP H0181073U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- approximately
- range
- intermediate frequency
- khz
- 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 2
- 238000010897 surface acoustic wave method Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例に使用するＳＡＷ・
ＩＦフイルタの周波数特性を示す特性図、第２図
はテレビジヨン受像機の中間周波段及び映像検波
段を示すブロツク図、第３図は従来のＳＡＷ．Ｉ
Ｆフイルタの周波数特性を示す特性図である。
１：弾性表面波中間周波数フイルタ。
Figure 1 shows the SAW used in one embodiment of the present invention.
A characteristic diagram showing the frequency characteristics of an IF filter, FIG. 2 is a block diagram showing an intermediate frequency stage and a video detection stage of a television receiver, and FIG. 3 shows a conventional SAW. I
It is a characteristic diagram which shows the frequency characteristic of an F filter. 1: Surface acoustic wave intermediate frequency filter.
Claims (1)
間周波数フイルタを介して映像検波回路に入力さ
れるテレビジヨン受信装置に於いて、前記フイル
タの周波数特性が映像キヤリア周波数ｆｐの上下
略１００ＫＨｚの範囲に亘つて略平担で且つｆｐ
から±（略１００〜７５０）ＫＨｚの範囲内でｆ
ｐを中心として点対称になるように設定したこと
を特徴とするテレビジヨン受信装置。 In a television receiver in which an intermediate frequency signal from a tuner is input to a video detection circuit via a surface acoustic wave intermediate frequency filter, the frequency characteristic of the filter is over a range of approximately 100 KHz above and below the video carrier frequency fp. Almost flat and fp
f within the range of ± (approximately 100 to 750) KHz
A television receiving device characterized in that it is set to be point symmetrical with respect to p.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175952U JPH0181073U (en) | 1987-11-18 | 1987-11-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987175952U JPH0181073U (en) | 1987-11-18 | 1987-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0181073U true JPH0181073U (en) | 1989-05-31 |
Family
ID=31467725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987175952U Pending JPH0181073U (en) | 1987-11-18 | 1987-11-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0181073U (en) |
-
1987
- 1987-11-18 JP JP1987175952U patent/JPH0181073U/ja active Pending
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