KR960006447A - DTMF Signal Display - Google Patents
DTMF Signal Display Download PDFInfo
- Publication number
- KR960006447A KR960006447A KR1019940017010A KR19940017010A KR960006447A KR 960006447 A KR960006447 A KR 960006447A KR 1019940017010 A KR1019940017010 A KR 1019940017010A KR 19940017010 A KR19940017010 A KR 19940017010A KR 960006447 A KR960006447 A KR 960006447A
- Authority
- KR
- South Korea
- Prior art keywords
- signal
- dtmf
- unit
- fax
- signals
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/68—Circuit arrangements for preventing eavesdropping
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/247—Telephone sets including user guidance or feature selection means facilitating their use
- H04M1/2478—Telephone terminals specially adapted for non-voice services, e.g. email, internet access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/30—Devices which can set up and transmit only one digit at a time
- H04M1/50—Devices which can set up and transmit only one digit at a time by generating or selecting currents of predetermined frequencies or combinations of frequencies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2201/00—Electronic components, circuits, software, systems or apparatus used in telephone systems
- H04M2201/52—Telephonic communication in combination with fax communication
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Human Computer Interaction (AREA)
- Facsimiles In General (AREA)
- Telephonic Communication Services (AREA)
- Facsimile Transmission Control (AREA)
Abstract
본 발명은 비화통화를 가능하도록 한 디티엠에프(DTMF) 신호 표시장치에 관한 것이다. 종래 기술의 통화시 주변환경으로 인한 중요한 사항을 듣지 못하거나 누화등이 있는 문제점을 해결하기 위해서, 본 발명은 전화기의 DTMF 신호를 암호화하여 교환기(10)로 보내는 비화부(50c), 기계식 전화기도 연결시킬 수 있는 펄스/DTMF 변환부(50a), 그리고 키패드(40)에 의해서 사용자의 용도에 맞도록 DTMF 신호이외의 각종 신호를 발생시킬 수 있는 MF발생부(50b)로 구성된 송신부(50)와, 상기 교환기(11)로 수신되는 음성신호에서 DTMF 신호 및 MF 신호를 검출하는 DTMF 및 MF 신호검출부(60a), 상기 암호화된 신호를 원래신호로 복원해주는 복화부(60b), 이 결과를 숫자 및 문자로 나타내는 표시부(60d) 그리고 팩스신호를 검출하는 팩스 신호 검출부(60c)로 구성된 수신부(60)를 제공함으로써 중요한 전화번호나 메시지를 손쉽게 전달할 수 있고, 비화통과가 가능하며, 음성신호와 팩스신호를 구분하여 출력하므로 한 전화선에 전화기와 팩시밀리를 연결하여 사용할 수가 있다.The present invention relates to a DTMF signal display apparatus for enabling non-calling. In order to solve the problem of not hearing important matters due to the surrounding environment or crosstalk during the prior art call, the present invention encrypts the DTMF signal of the telephone and sends it to the switch 10, a sparking unit 50c, and a mechanical telephone. Transmitter 50 consisting of a pulse / DTMF conversion unit 50a that can be connected, and the MF generator 50b capable of generating various signals other than DTMF signals to suit the user's purpose by the keypad 40 and A DTMF and MF signal detection unit 60a for detecting DTMF signals and MF signals from the voice signal received by the exchange 11, a demodulator 60b for restoring the encrypted signal to the original signal, and the result of the number and By providing a receiving unit 60 composed of a display unit 60d represented by letters and a fax signal detection unit 60c that detects a fax signal, important telephone numbers or messages can be easily delivered, and non-calling is possible. On one phone line, so the output signal and the separation of St. fax signal can be used to connect a telephone and fax machine.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제2도는 본 발명에 따른 제1실시예의 회로망 결선도.2 is a network connection diagram of a first embodiment according to the present invention.
제3도는 본 발명에 따른 제2실시예의 회로망 결선도.3 is a network connection diagram of a second embodiment according to the present invention.
제4도는 본 발명에 따른 제1실시예에 대한 개략 구조도를 나타낸 것으로서 (A)는 평면도, (B)는 측면도, (C)는 정면도.Figure 4 shows a schematic structural diagram of a first embodiment according to the present invention, (A) is a plan view, (B) is a side view, (C) is a front view.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940017010A KR0165050B1 (en) | 1994-07-14 | 1994-07-14 | Dtmf signal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940017010A KR0165050B1 (en) | 1994-07-14 | 1994-07-14 | Dtmf signal display device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960006447A true KR960006447A (en) | 1996-02-23 |
KR0165050B1 KR0165050B1 (en) | 1999-02-01 |
Family
ID=19388010
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019940017010A KR0165050B1 (en) | 1994-07-14 | 1994-07-14 | Dtmf signal display device |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0165050B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8571188B2 (en) | 2006-12-15 | 2013-10-29 | Qualcomm Incorporated | Method and device for secure phone banking |
US8290162B2 (en) | 2006-12-15 | 2012-10-16 | Qualcomm Incorporated | Combinational combiner cryptographic method and apparatus |
-
1994
- 1994-07-14 KR KR1019940017010A patent/KR0165050B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0165050B1 (en) | 1999-02-01 |
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Legal Events
Date | Code | Title | Description |
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A201 | Request for examination | ||
E701 | Decision to grant or registration of patent right | ||
GRNT | Written decision to grant | ||
FPAY | Annual fee payment |
Payment date: 20010830 Year of fee payment: 4 |
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LAPS | Lapse due to unpaid annual fee |