JPS60136558U - Multipath detection circuit - Google Patents

Multipath detection circuit

Info

Publication number
JPS60136558U
JPS60136558U JP2302684U JP2302684U JPS60136558U JP S60136558 U JPS60136558 U JP S60136558U JP 2302684 U JP2302684 U JP 2302684U JP 2302684 U JP2302684 U JP 2302684U JP S60136558 U JPS60136558 U JP S60136558U
Authority
JP
Japan
Prior art keywords
pilot signal
detection circuit
intermediate frequency
multipath detection
extraction 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
Application number
JP2302684U
Other languages
Japanese (ja)
Inventor
英樹 奈良
Original Assignee
パイオニア株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP2302684U priority Critical patent/JPS60136558U/en
Publication of JPS60136558U publication Critical patent/JPS60136558U/en
Pending legal-status Critical Current

Links

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

【図面の簡単な説明】[Brief explanation of the drawing]

第１図・・・従来知られているマルチパス検出回路′の
ブロック図、第２図・・・そのＩＦフィルター特性によ
る影響を示す動作説明図、第３図・・・この考案の実施
例のブロック図。 １・・・フロントエンド、２・・・中間周波増幅部、３
・・・ＦＭ検波器、４・・・マルチプレックスデコーダ
、５・・・ＡＭ検波器、６・・・パイロット信号抽出回
路、７・・・掛算器。Fig. 1: A block diagram of a conventionally known multipath detection circuit, Fig. 2: An explanatory diagram of its operation showing the influence of its IF filter characteristics, Fig. 3: An example of an embodiment of this invention. Block Diagram. 1...Front end, 2...Intermediate frequency amplification section, 3
...FM detector, 4...Multiplex decoder, 5...AM detector, 6...Pilot signal extraction circuit, 7...Multiplier.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ＦＭ受信器の中間周波増幅部に接続され中間周波数（７
）ＡＭ成分を検出するＡＶ＠、波器と、ＡＭ検波器に接
続され中間周波数のＮ成分中からパイロット信号を抽出
するパイロット信号抽出回路と、パイロット信号抽出回
路の出力信号と正しい位相のパイロット信号とのベクト
ル積を求める掛算器とを備え、位相のずれたパイロット
信号を検出してマルチパスの有無を検出することを特徴
とするマルチパス検出回路。It is connected to the intermediate frequency amplification section of the FM receiver and the intermediate frequency (7
) An AV@ wave detector that detects the AM component, a pilot signal extraction circuit that is connected to the AM detector and extracts a pilot signal from among the N components of the intermediate frequency, and a pilot signal that has the correct phase with the output signal of the pilot signal extraction circuit. 1. A multipath detection circuit, comprising: a multiplier for calculating a vector product of .
JP2302684U 1984-02-22 1984-02-22 Multipath detection circuit Pending JPS60136558U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2302684U JPS60136558U (en) 1984-02-22 1984-02-22 Multipath detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2302684U JPS60136558U (en) 1984-02-22 1984-02-22 Multipath detection circuit

Publications (1)

Publication Number Publication Date
JPS60136558U true JPS60136558U (en) 1985-09-10

Family

ID=30515877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2302684U Pending JPS60136558U (en) 1984-02-22 1984-02-22 Multipath detection circuit

Country Status (1)

Country Link
JP (1) JPS60136558U (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115901A (en) * 1974-02-22 1975-09-10
JPS5175314A (en) * 1974-12-25 1976-06-29 Sony Corp MARUCHI PASUKY ANSERUKAIRO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50115901A (en) * 1974-02-22 1975-09-10
JPS5175314A (en) * 1974-12-25 1976-06-29 Sony Corp MARUCHI PASUKY ANSERUKAIRO

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