JPS58148541A - 秘話回路 - Google Patents

秘話回路

Info

Publication number
JPS58148541A
JPS58148541A JP3210682A JP3210682A JPS58148541A JP S58148541 A JPS58148541 A JP S58148541A JP 3210682 A JP3210682 A JP 3210682A JP 3210682 A JP3210682 A JP 3210682A JP S58148541 A JPS58148541 A JP S58148541A
Authority
JP
Japan
Prior art keywords
switched capacitor
capacitor filter
terminal
stage switched
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.)
Granted
Application number
JP3210682A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6222294B2 (enrdf_load_stackoverflow
Inventor
Atsushi Tajima
淳 田島
Katsumi Kobayashi
勝美 小林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP3210682A priority Critical patent/JPS58148541A/ja
Publication of JPS58148541A publication Critical patent/JPS58148541A/ja
Publication of JPS6222294B2 publication Critical patent/JPS6222294B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication
    • H04K1/04—Secret communication by frequency scrambling, i.e. by transposing or inverting parts of the frequency band or by inverting the whole band

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
JP3210682A 1982-03-01 1982-03-01 秘話回路 Granted JPS58148541A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3210682A JPS58148541A (ja) 1982-03-01 1982-03-01 秘話回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3210682A JPS58148541A (ja) 1982-03-01 1982-03-01 秘話回路

Publications (2)

Publication Number Publication Date
JPS58148541A true JPS58148541A (ja) 1983-09-03
JPS6222294B2 JPS6222294B2 (enrdf_load_stackoverflow) 1987-05-18

Family

ID=12349639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3210682A Granted JPS58148541A (ja) 1982-03-01 1982-03-01 秘話回路

Country Status (1)

Country Link
JP (1) JPS58148541A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127059U (ja) * 1984-01-31 1985-08-27 ソニー株式会社 送受信装置における秘話回路
JPH01233935A (ja) * 1988-03-15 1989-09-19 Sony Corp スイッチトキャパシタフィルタを用いたスペクトル反転秘話装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS=1981 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60127059U (ja) * 1984-01-31 1985-08-27 ソニー株式会社 送受信装置における秘話回路
JPH01233935A (ja) * 1988-03-15 1989-09-19 Sony Corp スイッチトキャパシタフィルタを用いたスペクトル反転秘話装置

Also Published As

Publication number Publication date
JPS6222294B2 (enrdf_load_stackoverflow) 1987-05-18

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