KR840007335A - 비화신호 송신시스템 - Google Patents

비화신호 송신시스템 Download PDF

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Publication number
KR840007335A
KR840007335A KR1019830006112A KR830006112A KR840007335A KR 840007335 A KR840007335 A KR 840007335A KR 1019830006112 A KR1019830006112 A KR 1019830006112A KR 830006112 A KR830006112 A KR 830006112A KR 840007335 A KR840007335 A KR 840007335A
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KR
South Korea
Prior art keywords
signal
digital
transmitting
secret
modulating
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KR1019830006112A
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English (en)
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KR860002153B1 (ko
Inventor
고오조 카게
Original Assignee
세끼모토 타다히로
닛본덴기 가부시기가이샤
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Application filed by 세끼모토 타다히로, 닛본덴기 가부시기가이샤 filed Critical 세끼모토 타다히로
Publication of KR840007335A publication Critical patent/KR840007335A/ko
Application granted granted Critical
Publication of KR860002153B1 publication Critical patent/KR860002153B1/ko

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B14/00—Transmission systems not characterised by the medium used for transmission
    • H04B14/02—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation
    • H04B14/04—Transmission systems not characterised by the medium used for transmission characterised by the use of pulse modulation using pulse code modulation
    • H04B14/046—Systems or methods for reducing noise or bandwidth
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K1/00—Secret communication

Abstract

내용 없음

Description

비화신호 송신시스템
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 따른 비화신호 송신시스템의 블록도.
제2A도부터 2E도까지는 제1도의 시스템의 동작을 나타내 준 파형도들.
제3도는 본 발명의 다른 실시예에 따른 비화신호 송신시스템의 블록도이다.

Claims (6)

  1. 제1 아날로그신호를 제1 디지탈신호로 변환하기 위한 디지탈 펄스복조기수단, 제1 디지탈신호를 디지탈 비화신호로 변환하는 비화수단, 제1 디지탈신호의 아날로그 변환에 의해 제공되는 제2 아날로그신호와 제1 아날로그 신호사이의 차를 나타내주는 제1 에러신호를 추출하기 위한 추출수단, 제1에러신호와 제1디지탈 비화신호를 전송해 주기위한 전송수단으로 구성되는 송신기와, 제1 에러신호와 제1 디지털 비화신호를 수신하여 각각 제2 에러신호와 제2 디지털 비화신호를 발생하는 수단, 제2 디지털 비화신호를 제2 디지털신호로 변환하는 비화해독수단, 제2 디지털신호를 제3 아날로그 신호로 변환하는 디지털 펄스 복조수단, 에러신호를 제3 아날로그신호에 가산함으로써 제1 아날로그신호를 재생하기 위한 재생수단으로 구성된 수신기를 포함하는 비화신호송신시스템.
  2. 제1항에 있어서, 디지털 펄스 변조기수단은ΔM 변조기를 포함한 것을 특징으로 한 비화신호 송신시스템.
  3. 제1항에 있어서, 상기 전송수단이 제1 디지털 비화신호를 반송하는 반송파를 주파수 변조시키는 주파수변조수단과, 제1 에러신호와 함께 주파수 변조수단의 출력을 진폭변조시키는 진폭 변조수단과, 진폭변조수단의 출력을 전송하기 위한 수단으로 구성되는 것을 특징으로 한 비화신호 송신시스템.
  4. 제1항에 있어서, 상기 전송수단이 제1에러신호와 함께 제1 디지털 비화신호를 진폭변조시키는 진폭변조수단과, 과진폭변조수단의 출력을 가진 반송파를 주파수 변조시키는 주파수 변조수단과, 주파수변조수단의 출력을 전송하기 위한 수단으로 구성되는 것을 특징으로한 비화신호 송신시스템.
  5. 제1항에 있어서, 상기 전송수단이 에러신호와 함께 제1디지탈 비화신호를 위상변조시키고, 위상변조된 신호와함께 반송파를 주파수 변조시키고, 그와 같이 주파수 변조된 신호를 전송하는 수단을 포함한 것을 특징으로 한 비화신호 송신시스템.
  6. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019830006112A 1982-12-22 1983-12-22 비화신호 송신시스템 KR860002153B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP223892 1982-12-22
JP57223892A JPS59115640A (ja) 1982-12-22 1982-12-22 秘話信号伝送方式

Publications (2)

Publication Number Publication Date
KR840007335A true KR840007335A (ko) 1984-12-06
KR860002153B1 KR860002153B1 (ko) 1986-12-11

Family

ID=16805338

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019830006112A KR860002153B1 (ko) 1982-12-22 1983-12-22 비화신호 송신시스템

Country Status (9)

Country Link
US (1) US4841571A (ko)
EP (1) EP0111937B1 (ko)
JP (1) JPS59115640A (ko)
KR (1) KR860002153B1 (ko)
AU (1) AU582532B2 (ko)
CA (1) CA1204188A (ko)
DE (1) DE3379627D1 (ko)
HK (1) HK26891A (ko)
SG (1) SG8391G (ko)

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US5255269A (en) * 1992-03-30 1993-10-19 Spacecom Systems, Inc. Transmission of data by frequency modulation using gray code
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US6678311B2 (en) 1996-05-28 2004-01-13 Qualcomm Incorporated High data CDMA wireless communication system using variable sized channel codes
US5926500A (en) 1996-05-28 1999-07-20 Qualcomm Incorporated Reduced peak-to-average transmit power high data rate CDMA wireless communication system
WO1998052318A1 (en) * 1997-03-14 1998-11-19 Mobile Broadcasting Corporation System and method of data transmission in the am frequency spectrum
JPH11295439A (ja) * 1998-04-07 1999-10-29 Ishida Co Ltd 異物検出機および異物検出システム
JP2008177632A (ja) * 2007-01-16 2008-07-31 Oki Electric Ind Co Ltd 無線音声通信回路
US9520920B2 (en) * 2014-10-27 2016-12-13 Avago Technologies General Ip (Singapore) Pte. Ltd. Transmitting and receiving digital and analog signals across an isolator using amplitude modulation
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Also Published As

Publication number Publication date
DE3379627D1 (en) 1989-05-18
JPH0245856B2 (ko) 1990-10-12
EP0111937A2 (en) 1984-06-27
EP0111937B1 (en) 1989-04-12
AU582532B2 (en) 1989-04-06
AU2255483A (en) 1984-06-28
JPS59115640A (ja) 1984-07-04
KR860002153B1 (ko) 1986-12-11
HK26891A (en) 1991-04-19
US4841571A (en) 1989-06-20
EP0111937A3 (en) 1987-01-21
CA1204188A (en) 1986-05-06
SG8391G (en) 1991-04-05

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