JPH0186736U - - Google Patents
Info
- Publication number
- JPH0186736U JPH0186736U JP18261987U JP18261987U JPH0186736U JP H0186736 U JPH0186736 U JP H0186736U JP 18261987 U JP18261987 U JP 18261987U JP 18261987 U JP18261987 U JP 18261987U JP H0186736 U JPH0186736 U JP H0186736U
- Authority
- JP
- Japan
- Prior art keywords
- reception condition
- determines whether
- good
- switching device
- antenna
- 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 2
Description
第１図はこの考案の一実施例に係る車載用スペ
ースダイバーシテイ方式ＦＭステレオ受信機のブ
ロツク図、第２図は従来のスペースダイバーシテ
イ方式ＦＭステレオ受信機のブロツクである。
１０，１２：アンテナ、１４：アンテナ切換回
路、１８：フロントエンド、２２：受信状況判別
／ＰＩＮダイオード駆動回路、３０：ステレオ復
調回路、３２：ミキシング回路。
FIG. 1 is a block diagram of an in-vehicle space diversity type FM stereo receiver according to an embodiment of this invention, and FIG. 2 is a block diagram of a conventional space diversity type FM stereo receiver. 10, 12: Antenna, 14: Antenna switching circuit, 18: Front end, 22: Reception status determination/PIN diode drive circuit, 30: Stereo demodulation circuit, 32: Mixing circuit.
Claims (1)
み成分より受信状況の良否を判別し、受信状況が
悪くなつたとき使用アンテナの切り換えを行うア
ンテナ切り換え装置と、を有するＦＭ受信機にお
いて、 前記アンテナ切り換え装置は、ＦＭステレオ復
調回路の出力信号に含まれる雑音成分や歪み成分
に基づき受信状況の良否判別を行うようにしたこ
と、 を特徴とするＦＭ受信機。[Claim for Utility Model Registration] A plurality of antennas and an antenna switching device that determines whether the reception condition is good or bad based on noise components and distortion components in the received signal, and switches the antenna to be used when the reception condition deteriorates. An FM receiver comprising: The antenna switching device determines whether the reception condition is good or bad based on noise components and distortion components contained in the output signal of the FM stereo demodulation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18261987U JPH0186736U (en) | 1987-11-30 | 1987-11-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18261987U JPH0186736U (en) | 1987-11-30 | 1987-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0186736U true JPH0186736U (en) | 1989-06-08 |
Family
ID=31474066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18261987U Pending JPH0186736U (en) | 1987-11-30 | 1987-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0186736U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57125542A (en) * | 1981-01-29 | 1982-08-04 | Nissan Motor Co Ltd | Multi-path distortion detector for fm radio receiver |
| JPS62159926A (en) * | 1986-01-08 | 1987-07-15 | Fujitsu Ten Ltd | Diversity receiver |
-
1987
- 1987-11-30 JP JP18261987U patent/JPH0186736U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57125542A (en) * | 1981-01-29 | 1982-08-04 | Nissan Motor Co Ltd | Multi-path distortion detector for fm radio receiver |
| JPS62159926A (en) * | 1986-01-08 | 1987-07-15 | Fujitsu Ten Ltd | Diversity receiver |
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