KR960036503A - Improved Tone Detection Circuit and Method of Voice Mail System - Google Patents
Improved Tone Detection Circuit and Method of Voice Mail System Download PDFInfo
- Publication number
- KR960036503A KR960036503A KR1019950007511A KR19950007511A KR960036503A KR 960036503 A KR960036503 A KR 960036503A KR 1019950007511 A KR1019950007511 A KR 1019950007511A KR 19950007511 A KR19950007511 A KR 19950007511A KR 960036503 A KR960036503 A KR 960036503A
- Authority
- KR
- South Korea
- Prior art keywords
- tone
- period
- outputting
- frequency
- detection
- Prior art date
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/42—Systems providing special services or facilities to subscribers
- H04M3/50—Centralised arrangements for answering calls; Centralised arrangements for recording messages for absent or busy subscribers ; Centralised arrangements for recording messages
- H04M3/53—Centralised arrangements for recording incoming messages, i.e. mailbox systems
- H04M3/533—Voice mail systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M3/00—Automatic or semi-automatic exchanges
- H04M3/02—Calling substations, e.g. by ringing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q1/00—Details of selecting apparatus or arrangements
- H04Q1/18—Electrical details
- H04Q1/30—Signalling arrangements; Manipulation of signalling currents
- H04Q1/44—Signalling arrangements; Manipulation of signalling currents using alternate current
- H04Q1/444—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies
- H04Q1/45—Signalling arrangements; Manipulation of signalling currents using alternate current with voice-band signalling frequencies using multi-frequency signalling
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Telephonic Communication Services (AREA)
Abstract
1. 청구범위에 기재된 발명이 속한 기술분야; 교환시스템과 연동되는 시스템의 톤 검출을 위한 기능에 관련된 기술이다.1. the technical field to which the invention described in the claims belongs; A technology related to a function for detecting a tone of a system interworking with an exchange system.
2. 발명이 해결하려고 하는 기술적 과제; 보다 정확하고 신뢰성 있는 톤의 검출을 할 수 있는 회로 및 방법을 제공한다.2. The technical problem to be solved by the invention; The present invention provides a circuit and a method for detecting a more accurate and reliable tone.
3. 발명의 해결방법의 요지; 개선된 톤 검출방법은 교환 시스템의 라인을 통해 입력되는 톤에 대한 주기 및 주파수 성분을 분석하는 단계와; 상기 분석된 톤의 주파수 성분과 주기의 값이 서로 동일하는 단계와; 상기 비교의 수행 결과가 일치할 경우에 미리 설정된 톤 판독코드영역에서 톤 판독코드를 리드하는 단계와; 상기 리드된 코드에 대응되는 동일값이 존재하는 가를 검사하여 다수의 톤 종류중 하나를 상기 입력 톤으로서 결정하는 단계를 가짐을 특징으로 한다.3. Summary of the Solution of the Invention; An improved tone detection method includes analyzing period and frequency components for tones input through a line of an exchange system; The frequency component of the analyzed tone and the value of the period are equal to each other; Reading a tone read code in a preset tone read code area when the result of the comparison coincides; And checking whether there is the same value corresponding to the read code and determining one of a plurality of tone types as the input tone.
4. 발명의 중요한 용도; 톤의 식별을 필요로 하는 분야에 유용하게 사용된다.4. Significant use of the invention; This is useful for fields requiring tonal identification.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 본 발명에 적용되는 음성 우편 시스템의 블록도, 제2도는 본 발명에 따르는 톤 검출의 제어흐름도, 제3도는 본 발명의 실시예에 적용되는 입력된 톤의 주파수 검출에 대한 타이밍 관계도이다.1 is a block diagram of a voice mail system applied to the present invention, FIG. 2 is a control flowchart of tone detection according to the present invention, and FIG. 3 is a timing relationship diagram for frequency detection of an input tone applied to an embodiment of the present invention. to be.
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007511A KR0138176B1 (en) | 1995-03-31 | 1995-03-31 | Method of circuit of tone detection |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950007511A KR0138176B1 (en) | 1995-03-31 | 1995-03-31 | Method of circuit of tone detection |
Publications (2)
Publication Number | Publication Date |
---|---|
KR960036503A true KR960036503A (en) | 1996-10-28 |
KR0138176B1 KR0138176B1 (en) | 1998-07-01 |
Family
ID=19411289
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950007511A KR0138176B1 (en) | 1995-03-31 | 1995-03-31 | Method of circuit of tone detection |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR0138176B1 (en) |
-
1995
- 1995-03-31 KR KR1019950007511A patent/KR0138176B1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR0138176B1 (en) | 1998-07-01 |
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