JPS60129761U - Antenna switching signal generator - Google Patents

Antenna switching signal generator

Info

Publication number
JPS60129761U
JPS60129761U JP1672084U JP1672084U JPS60129761U JP S60129761 U JPS60129761 U JP S60129761U JP 1672084 U JP1672084 U JP 1672084U JP 1672084 U JP1672084 U JP 1672084U JP S60129761 U JPS60129761 U JP S60129761U
Authority
JP
Japan
Prior art keywords
level
signal generator
switching signal
output
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
Application number
JP1672084U
Other languages
Japanese (ja)
Inventor
横川　朋尚
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 JP1672084U priority Critical patent/JPS60129761U/en
Publication of JPS60129761U publication Critical patent/JPS60129761U/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図は従来のアンテナ切換信号発生装置を用いた受信
システムの構成を示すブロック図、第２図は本考案の一
実施例の構成を示すブロック図である。 、　１および２・・・アンテナ、３・・・アンテナ切換
スイッチ回路、５・・・広帯域のフィルタ、８・・・狭
帯域のフィルタ、１０および１２・・・レベル検波器、
１１ａ・・・切換信号発生器、１３・・・ウィンドコン
パレータ。FIG. 1 is a block diagram showing the configuration of a receiving system using a conventional antenna switching signal generator, and FIG. 2 is a block diagram showing the configuration of an embodiment of the present invention. , 1 and 2... antenna, 3... antenna changeover switch circuit, 5... wideband filter, 8... narrowband filter, 10 and 12... level detector,
11a...Switching signal generator, 13...Window comparator.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 広帯域フィルタからの信号をレベル検波する第１のレベ
ル検波器と、第１のレベル検波器の出力をレベル比較し
て、かつレベル比較出力でアンテナを切換える切換信号
発生器とを備えたアンテナ−切換信号発生装置において
、広帯域フィルタより後段に設けられた狭帯域フィルタ
からの信号をレベル検波する第２のレベル検波器と、第
１および第２のレベル検波器の出力を入力として妨害信
号成分の存否を検出し、かつ妨害信号成分の存在を−検
出した出力で切換信号発生器の出力を遮断する妨害信号
成分検出手段とを備えてなることを特徴とするアンテナ
切換信号発生装置。Antenna switching comprising: a first level detector that detects the level of a signal from a wideband filter; and a switching signal generator that compares the levels of the output of the first level detector and switches the antenna based on the level comparison output. In the signal generation device, a second level detector detects the level of the signal from the narrowband filter provided after the wideband filter, and the outputs of the first and second level detectors are used as inputs to detect the presence or absence of an interfering signal component. and interference signal component detection means for detecting the presence of the interference signal component and blocking the output of the switching signal generator at the detected output.
JP1672084U 1984-02-10 1984-02-10 Antenna switching signal generator Pending JPS60129761U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1672084U JPS60129761U (en) 1984-02-10 1984-02-10 Antenna switching signal generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1672084U JPS60129761U (en) 1984-02-10 1984-02-10 Antenna switching signal generator

Publications (1)

Publication Number Publication Date
JPS60129761U true JPS60129761U (en) 1985-08-30

Family

ID=30503757

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1672084U Pending JPS60129761U (en) 1984-02-10 1984-02-10 Antenna switching signal generator

Country Status (1)

Country Link
JP (1) JPS60129761U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009278525A (en) * 2008-05-16 2009-11-26 Nec Electronics Corp Antenna diversity receiver and antenna switching control method therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009278525A (en) * 2008-05-16 2009-11-26 Nec Electronics Corp Antenna diversity receiver and antenna switching control method therefor

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