KR830007017A - Digital Pseudo Tone Detector - Google Patents

Digital Pseudo Tone Detector Download PDF

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Publication number
KR830007017A
KR830007017A KR1019810001699A KR810001699A KR830007017A KR 830007017 A KR830007017 A KR 830007017A KR 1019810001699 A KR1019810001699 A KR 1019810001699A KR 810001699 A KR810001699 A KR 810001699A KR 830007017 A KR830007017 A KR 830007017A
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KR
South Korea
Prior art keywords
sum
time intervals
total
phase
input signal
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Application number
KR1019810001699A
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Korean (ko)
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KR850001141B1 (en
Inventor
폴 라베츠 제럴드
Original Assignee
빈센트 죠셉 로너
모토로라 인코포레이티드
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Priority to KR1019810001699A priority Critical patent/KR850001141B1/en
Publication of KR830007017A publication Critical patent/KR830007017A/en
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Publication of KR850001141B1 publication Critical patent/KR850001141B1/en

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Abstract

내용 없음No content

Description

디지탈 의사연속 톤 검출기Digital Pseudo Tone Detector

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

제1도는 본 발명의 디지탈 의사연속 상호연관 톤검출기의 일 실시예를 도시한 일반화된 개요도.1 is a generalized schematic diagram illustrating one embodiment of a digital pseudo-continuous correlated tone detector of the present invention.

제2도는 본 발명에 따른 디지탈의 사연속 상호연관 톤 검출기의 상세한 개요도.2 is a detailed schematic diagram of a digital continuous correlated tone detector in accordance with the present invention.

제3도는 본 발명의 양호한 실시예인 마이크로컴퓨너를 도시한 개요도.Figure 3 is a schematic diagram showing a microcomputer that is a preferred embodiment of the present invention.

Claims (1)

본문에서 설명되고 도면에서 예시된 바와 같이 다수의 톤들중에서 적어도 한 개의 필요한 톤을 검출하도록 입력신호를 처리하는 방법에 있어서, 선정된 비율로 입력신호샘플들을 발생시키도록 입력신호를 계수화하는 단계와, 필요한 톤의 주파수를 갖는 기준파형의 위상부 영역에 제각기의 샘플을 할당하는 단계와 제각기의 시간간격동안 1개의 부영역 부합계를 얻도록 연속적인 시간간격들 동안 제각기의 위상부영역에 대하여 샘플값들을 합산하는 단계와, 국부기분파형의 대응하는 위상부영역의 크기에 의하여 증대된 제각기의 위상부영역의 부합계들의 몇개의 최종시간간격들에 걸쳐서 합계의 곱의 전체 합계인 전체 상호연관값을 제각기의 국부기준파형에 대해 얻기 위하여 제각기의 시간간격들의 끝에서 몇개의 최종시간간격들동안 적어도 한 개의 국부기준파형에 대하여 위상부영역 부합계들을 상호연관시키는 단계와, 전체 상호 연관값들의 절대값들의 합계를 얻도록 제각기의 시간간격 끝에서 전체상호 연관값들을 처리하는 단계와, 제각기의 시간간격의 끝에서 전체상호 연관값들의 절대닶들의 합계와 제1임계값을 초과하는 상기 합계에 응답하여 검출지시 신호를 발생시키는 제1임계값을 비교하는 단계를 포함하는 디지털 의사연속 톤 검출기.A method of processing an input signal to detect at least one required tone among a plurality of tones as described herein and illustrated in the figures, comprising: digitizing the input signal to generate input signal samples at a predetermined rate; Assigning each sample to a phase portion region of the reference waveform having the desired tone frequency, and for each phase portion region for successive time intervals to obtain one subregion matching system for each time interval. A summation of the values and a total correlation value that is the total sum of the product of the sum over several final time intervals of the matching systems of the respective phase subregions augmented by the size of the corresponding phase subregions of the local separation waveform. At least one of several final time intervals at the end of each of the time intervals to obtain for each local reference waveform. Correlating the phase subdomain matchers for the two local reference waveforms, processing the total cross-correlation values at the end of each time interval to obtain a sum of the absolute values of the total correlation values, and the respective time intervals. And comparing a sum of absolute sums of all cross-correlation values at the end of the first threshold value to generate a detection indication signal in response to the sum exceeding a first threshold value. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019810001699A 1981-05-16 1981-05-16 Digital pseudo continuous tone detector KR850001141B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019810001699A KR850001141B1 (en) 1981-05-16 1981-05-16 Digital pseudo continuous tone detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019810001699A KR850001141B1 (en) 1981-05-16 1981-05-16 Digital pseudo continuous tone detector

Publications (2)

Publication Number Publication Date
KR830007017A true KR830007017A (en) 1983-10-12
KR850001141B1 KR850001141B1 (en) 1985-08-09

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KR1019810001699A KR850001141B1 (en) 1981-05-16 1981-05-16 Digital pseudo continuous tone detector

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KR850001141B1 (en) 1985-08-09

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