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KR890015184A - Call signal generator - Google Patents

Call signal generator Download PDF

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Publication number
KR890015184A
KR890015184A KR1019880002953A KR880002953A KR890015184A KR 890015184 A KR890015184 A KR 890015184A KR 1019880002953 A KR1019880002953 A KR 1019880002953A KR 880002953 A KR880002953 A KR 880002953A KR 890015184 A KR890015184 A KR 890015184A
Authority
KR
South Korea
Prior art keywords
signal
rom
input
call signal
circuit
Prior art date
Application number
KR1019880002953A
Other languages
Korean (ko)
Other versions
KR910007397B1 (en
Inventor
윤형석
Original Assignee
윤형석
한국통신개발 주식회사
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 윤형석, 한국통신개발 주식회사 filed Critical 윤형석
Priority to KR1019880002953A priority Critical patent/KR910007397B1/en
Publication of KR890015184A publication Critical patent/KR890015184A/en
Application granted granted Critical
Publication of KR910007397B1 publication Critical patent/KR910007397B1/en

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/222—Personal calling arrangements or devices, i.e. paging systems
    • G08B5/223—Personal calling arrangements or devices, i.e. paging systems using wireless transmission
    • G08B5/224—Paging receivers with visible signalling details
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Electronic Switches (AREA)
  • Devices For Supply Of Signal Current (AREA)

Abstract

내용 없음No content

Description

호출신호 발생장치Call signal generator

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1 도는 본 발명을 설명키 위한 장치의 정면도, 제 2 도는 본 발명을 설명키 위한 블럭도, 제 3 도는 본 발명 실시예의 회로도.1 is a front view of an apparatus for explaining the present invention, FIG. 2 is a block diagram for explaining the present invention, and FIG. 3 is a circuit diagram of an embodiment of the present invention.

Claims (3)

신호대역(A, B, C)의 신호를 세렉터 스위칭 회로(IC9, IC12)를 커쳐 출력되는 로직신호를 각기 ROM(IC17, IC18)에 입력시켜 출력되는 프로그램 로직 신호를 카운트(IC20, IC 21, IC22, IC23)하는 것과, 카운트된 신호와 별도의 발진신호와 함께 D플립플롭(IC25)과 분주회로(IC25)로 파형을 정형하여 신호대역별로 L.C공진회로를 거쳐 싸인파 발진시켜 아나로그 스위칭 회로(IC26)에서 선택하여 비교회로(IC27)로 조정하여 트랜스(1)에 정합시켜 출력을 얻도록 하는 것을 특징으로 하는 호출신호 발생장치.Signals in the signal bands A, B, and C are cut through the selector switching circuits IC9 and IC12 to input the logic signals to the ROM IC17 and IC18, respectively, to count the output logic signals. , IC22, IC23), and the waveform is formed by the D flip-flop (IC25) and the division circuit (IC25) together with the counted signal and the separate oscillation signal, and then oscillates the sine wave through the LC resonance circuit for each signal band. Selecting circuit (IC26) to adjust the comparison circuit (IC27) to match the transformer (1) to obtain the output signal device, characterized in that. 청구의 범위 제 1 항에 있어서 게이트(IC5)로 구성되는 조합에 의해 신호 대역의 3개의 파형이 순차 선택되어 ROM(IC17, IC18)에 입력되도록 되는 것을 특징으로 하는 호출신호 발생장치.3. The call signal generating apparatus according to claim 1, wherein three waveforms of a signal band are sequentially selected and input to a ROM (IC17, IC18) by a combination consisting of a gate (IC5). 청구의 범위 제 1 항에 있어서 OR게이트의 논리에 따라 고정신호를 ROM(IC17, IC18)에 입력되도록 되는 호출신호 발생장치.2. The call signal generator according to claim 1, wherein a fixed signal is input to the ROM (IC17, IC18) in accordance with the logic of the OR gate. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880002953A 1988-03-19 1988-03-19 Device which generates calling signal KR910007397B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880002953A KR910007397B1 (en) 1988-03-19 1988-03-19 Device which generates calling signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880002953A KR910007397B1 (en) 1988-03-19 1988-03-19 Device which generates calling signal

Publications (2)

Publication Number Publication Date
KR890015184A true KR890015184A (en) 1989-10-28
KR910007397B1 KR910007397B1 (en) 1991-09-25

Family

ID=19272941

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880002953A KR910007397B1 (en) 1988-03-19 1988-03-19 Device which generates calling signal

Country Status (1)

Country Link
KR (1) KR910007397B1 (en)

Also Published As

Publication number Publication date
KR910007397B1 (en) 1991-09-25

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