KR870001320U - 비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치 - Google Patents

비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치

Info

Publication number
KR870001320U
KR870001320U KR2019850006992U KR850006992U KR870001320U KR 870001320 U KR870001320 U KR 870001320U KR 2019850006992 U KR2019850006992 U KR 2019850006992U KR 850006992 U KR850006992 U KR 850006992U KR 870001320 U KR870001320 U KR 870001320U
Authority
KR
South Korea
Prior art keywords
sfsk
sine wave
frequency shift
shift keying
wave frequency
Prior art date
Application number
KR2019850006992U
Other languages
English (en)
Other versions
KR880000322Y1 (ko
Inventor
유민권
Original Assignee
주식회사금성사
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 주식회사금성사 filed Critical 주식회사금성사
Priority to KR2019850006992U priority Critical patent/KR880000322Y1/ko
Publication of KR870001320U publication Critical patent/KR870001320U/ko
Application granted granted Critical
Publication of KR880000322Y1 publication Critical patent/KR880000322Y1/ko

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)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
KR2019850006992U 1985-06-12 1985-06-12 비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치 KR880000322Y1 (ko)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850006992U KR880000322Y1 (ko) 1985-06-12 1985-06-12 비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850006992U KR880000322Y1 (ko) 1985-06-12 1985-06-12 비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치

Publications (2)

Publication Number Publication Date
KR870001320U true KR870001320U (ko) 1987-02-20
KR880000322Y1 KR880000322Y1 (ko) 1988-03-10

Family

ID=19242848

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850006992U KR880000322Y1 (ko) 1985-06-12 1985-06-12 비밀통신용 사인파형 주파수 변이키잉(sfsk) 변조기장치

Country Status (1)

Country Link
KR (1) KR880000322Y1 (ko)

Also Published As

Publication number Publication date
KR880000322Y1 (ko) 1988-03-10

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Legal Events

Date Code Title Description
A201 Request for examination
O032 Opposition [utility model]: request for opposition
U123 Submission of document of withdrawal after decision of registration