JPH0288340U - - Google Patents
Info
- Publication number
- JPH0288340U JPH0288340U JP16632688U JP16632688U JPH0288340U JP H0288340 U JPH0288340 U JP H0288340U JP 16632688 U JP16632688 U JP 16632688U JP 16632688 U JP16632688 U JP 16632688U JP H0288340 U JPH0288340 U JP H0288340U
- Authority
- JP
- Japan
- Prior art keywords
- receiving
- tuning display
- broadcast audio
- bandwidth
- audio signal
- 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
- 230000005236 sound signal Effects 0.000 claims 6
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Circuits Of Receivers In General (AREA)
Description
第１図はこの考案の一実施例の構成を示すブロ
ツク図。第２図は従来例の構成を示すブロツク図
。第３図ａは従来例における同調表示の帯域幅を
示す線図。第３図ｂはこの考案の一実施例におけ
る同調表示の帯域幅を示す線図。
１……中間周波増幅器、２……ＦＭ検波器、３
……直流増幅器、４……駆動回路、５……発光ダ
イオード、Ｒ０およびＲ２……抵抗、Ｑ……ＦＥ
Ｔ。
FIG. 1 is a block diagram showing the configuration of an embodiment of this invention. FIG. 2 is a block diagram showing the configuration of a conventional example. FIG. 3a is a diagram showing the bandwidth of tuning display in a conventional example. FIG. 3b is a diagram showing the bandwidth of tuning display in one embodiment of the invention. 1...Intermediate frequency amplifier, 2...FM detector, 3
...DC amplifier, 4...Drive circuit, 5...Light emitting diode, R0 and R2 ...Resistance, Q...FE
T.
Claims (1)
信とＴＶ放送音声信号受信とを切替えて受信可能
なＦＭ／ＴＶチユーナのＦＭ検波出力ひおけるＳ
字特性を利用して同調表示を行なう同調表示回路
において、ＦＭ放送音声信号受信の場合とＴＶ放
送音声信号受信の場合とで同調表示がなされる帯
域幅を切替える同調表示帯域幅変更手段を備え、
ＴＶ放送音声信号受信の場合ＦＭ放送音声信号受
信の場合における同調表示帯域幅より広い所定の
同調表示帯域幅に変更するようにしたことを特徴
とする同調表示回路。 An FM detection output S of an FM/TV tuner that has a common FM detector and can switch between receiving FM broadcast audio signals and receiving TV broadcast audio signals.
A tuning display circuit that performs a tuning display using a character characteristic, comprising a tuning display bandwidth changing means for switching a bandwidth in which a tuning display is performed when receiving an FM broadcast audio signal and when receiving a TV broadcast audio signal,
A tuning display circuit characterized in that when receiving a TV broadcast audio signal, the tuning display bandwidth is changed to a predetermined tuning display bandwidth that is wider than the tuning display bandwidth when receiving an FM broadcast audio signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16632688U JPH0288340U (en) | 1988-12-24 | 1988-12-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16632688U JPH0288340U (en) | 1988-12-24 | 1988-12-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0288340U true JPH0288340U (en) | 1990-07-12 |
Family
ID=31453607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16632688U Pending JPH0288340U (en) | 1988-12-24 | 1988-12-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0288340U (en) |
-
1988
- 1988-12-24 JP JP16632688U patent/JPH0288340U/ja active Pending