JPS6340027U - - Google Patents

Info

Publication number
JPS6340027U
JPS6340027U JP13441686U JP13441686U JPS6340027U JP S6340027 U JPS6340027 U JP S6340027U JP 13441686 U JP13441686 U JP 13441686U JP 13441686 U JP13441686 U JP 13441686U JP S6340027 U JPS6340027 U JP S6340027U
Authority
JP
Japan
Prior art keywords
frequency
switching
phase comparison
comparison circuit
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
JP13441686U
Other languages
English (en)
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 filed Critical
Priority to JP13441686U priority Critical patent/JPS6340027U/ja
Publication of JPS6340027U publication Critical patent/JPS6340027U/ja
Pending legal-status Critical Current

Links

Description

【図面の簡単な説明】
第１図はこの考案の一実施例を示すブロツク図
、第２図は第１図の各信号の波形を示す波形図、
第３図は従来の回路の一例を示すブロツク図、第
４図は第３図の各信号の波形を示す波形図。 １は位相比較回路、２は切換回路、３はＣＰＵ
、ｆ１は第１の周波数、ｆ２は第２の周波数、ｓ
１は切換え指示信号、ｓ２は切換え制御信号。尚
、各図中同一符号は同一又は相当部分を示す。

Claims (1)

  1. 【実用新案登録請求の範囲】 複数の周波数のうちから一つの周波数を選択使
    用するシステムが、現在使用中の第１の周波数か
    らこの第１の周波数とは異なる第２の周波数に切
    換えるための周波数切換回路において、 上記第１の周波数と上記第２の周波数との位相
    同期時点を検出する位相比較回路、 切換え指令信号を入力した後上記位相比較回路
    から位相同期時点検出信号が出力された時点にお
    いて上記第１の周波数を上記第２の周波数に切換
    えるスイツチ回路、 を備えたことを特徴とする周波数切換回路。
JP13441686U 1986-09-02 1986-09-02 Pending JPS6340027U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13441686U JPS6340027U (ja) 1986-09-02 1986-09-02

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13441686U JPS6340027U (ja) 1986-09-02 1986-09-02

Publications (1)

Publication Number Publication Date
JPS6340027U true JPS6340027U (ja) 1988-03-15

Family

ID=31035641

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13441686U Pending JPS6340027U (ja) 1986-09-02 1986-09-02

Country Status (1)

Country Link
JP (1) JPS6340027U (ja)

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