KR930011547A - DTMF Signal Generator Using Memory - Google Patents

DTMF Signal Generator Using Memory Download PDF

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Publication number
KR930011547A
KR930011547A KR1019910021277A KR910021277A KR930011547A KR 930011547 A KR930011547 A KR 930011547A KR 1019910021277 A KR1019910021277 A KR 1019910021277A KR 910021277 A KR910021277 A KR 910021277A KR 930011547 A KR930011547 A KR 930011547A
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KR
South Korea
Prior art keywords
address
signal
memory
channel
digital code
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Application number
KR1019910021277A
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Korean (ko)
Inventor
한철희
Original Assignee
정용문
삼성전자 주식회사
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Publication date
Application filed by 정용문, 삼성전자 주식회사 filed Critical 정용문
Priority to KR1019910021277A priority Critical patent/KR930011547A/en
Publication of KR930011547A publication Critical patent/KR930011547A/en

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Abstract

교환기에서 DTMF신호를 발생할 시 메모리를 이용하여 DTMF신호를 발생하고, 이 DTMF신호를 하이웨이상에 출력한다. 이를 위하여 메모리에는 DTMF신호에 각각 대응하는 디지탈 코드 데이타를 특정 어드레스 위치에 저장시키며, 수신되는 어드레스에 의해 해당위치의 디지탈 코드 데이타를 출력한다. 그리고 어드레스 발생부는 제어부로부터 채널 어드레스를 수신하며, 해당 채널 어드레스 발생부는 제어부로부터 채널 어드레스를 수신하며, 해당 채널 어드레스에 대응하는 디지탈 코드 데이타를 순차적으로 억세스하기 위한 어드레스 신호를 발생하여 상기 메모리로 출력한다. 이후 인터페이스부는 상기 메모리의 출력 디지탈 코드 데이타를 병렬 로드하여 지정되는 각각의 채널위치에서 로드한 디지탈 코드데이타를 직렬 변환하여 하이웨이상으로 출력한다.When the exchange generates the DTMF signal, the memory is used to generate the DTMF signal, and the DTMF signal is output on the highway. To this end, the memory stores the digital code data corresponding to the DTMF signals at specific address positions, and outputs the digital code data of the corresponding positions according to the received addresses. The address generator receives a channel address from the controller, and the channel address generator receives a channel address from the controller, and generates and outputs an address signal for sequentially accessing digital code data corresponding to the channel address. . Thereafter, the interface unit serially loads the output digital code data of the memory and serially converts the digital code data loaded at each designated channel position and outputs it on the highway.

Description

메모리를 이용한 DTMF신호 발생기DTMF Signal Generator Using Memory

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

제3도는 본 발명에 따른 DTMF발생기의 블럭구성도.3 is a block diagram of a DTMF generator according to the present invention.

제4도는 제3도의 구체적 실시예도.4 is a specific embodiment of FIG.

Claims (3)

교환기의 DTMF신호 발생회로에 있어서, DTMF신호에 각각 대응되는 디지탈코드데이타를 특정 어드레스위치에 저장하고 있으며, 수신되는 어드레스에 의해 출력하는 메모리와, 제어부로부터 채널 어드레스를 수신하며, 상기 채널 어드레스에 의해 대응되는 디지탈 코드 데이타를 순차적으로 억세스하기 위한 어드레스 신호를 발생하여 상기 메모리로 출력하는 어드레스 발생부와, 상기 메모리의 출력 디지탈 코드데이타를 로드하여 지정되는 각각의 채널 위치에서 직렬 변환하여 하이웨이상으로 출력하는 인터페이스부로 구성된 것을 특징으로 하는 교환기의 DTMF신호 발생회로.In the DTMF signal generating circuit of the exchange, the digital code data corresponding to the DTMF signal is stored in a specific address position, and the memory outputs by the received address, and the channel address is received from the control unit. An address generator for generating address signals for sequentially accessing corresponding digital code data and outputting them to the memory, and loading the output digital code data of the memory and serially converting each of them at designated channel positions to output them on a highway; DTMF signal generating circuit of the exchanger, characterized in that the interface portion. 제1항에 있어서, 어드레스 발생부가 제어부로부터 수신되는 디지탈 데이타를 분석하여 출력 채널 지정을 위한 어드레스 신호를 발생하는 수단과, 소정 클럭을 계수하며, 상기 계수신호와 상기 채널 지정 어드레스 신호를 상기 메모리의 어드레스를 공급하는 수단으로 구성된 것을 특징으로 하는 교환기의 DTMF신호 발생회로.2. The apparatus of claim 1, wherein the address generator analyzes digital data received from the controller to generate an address signal for output channel assignment, counts a predetermined clock, and counts the count signal and the channel assignment address signal in the memory. A DTMF signal generating circuit of an exchange comprising a means for supplying an address. 제1항 또는 제2항에 있어서, 인터페이스부가 프레임 동기 신호에 의해 동기되어 소정 클럭을 계수하는 수단과, 상기 계수 수단의 출력과 채널 지정 신호를 논리 조합하여 로드 신호를 발생하는 수단과, 상기 로드 신호에 의해 상기 메모리 출력데이타를 병렬 로드하여 직렬 변환하며, 해당 채널에서 PCM하이웨이상으로 출력하는 수단으로 구성된 것을 특징으로 하는 교환기의 DTMF신호 발생회로.3. The apparatus of claim 1 or 2, further comprising: means for counting a predetermined clock synchronized with a frame synchronizing signal, means for generating a load signal by logically combining the output of the counting means and a channel designating signal, and the load And a means for parallel-loading and serially converting the memory output data by a signal, and outputting the data on a PCM highway in a corresponding channel. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910021277A 1991-11-26 1991-11-26 DTMF Signal Generator Using Memory KR930011547A (en)

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Application Number Priority Date Filing Date Title
KR1019910021277A KR930011547A (en) 1991-11-26 1991-11-26 DTMF Signal Generator Using Memory

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Application Number Priority Date Filing Date Title
KR1019910021277A KR930011547A (en) 1991-11-26 1991-11-26 DTMF Signal Generator Using Memory

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KR930011547A true KR930011547A (en) 1993-06-24

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100428675B1 (en) * 1999-11-24 2004-04-30 엘지전자 주식회사 Apparatus for transmitting tone by using frequency processing option in electronic switch board
KR100459313B1 (en) * 1997-07-31 2005-01-17 홍성용 Electromagnetic wave absorber composition comprising fe2o3, nio, zno, cuo, water, dispersant, plasticizer and lubricant, its preparation method, paint composition for absorbing electromagnetic wave containing the composition, its preparation method, its coating method, and device using the paint composition
KR100449884B1 (en) * 1997-12-29 2005-03-08 주식회사 팬택앤큐리텔 Exchange interface device for a wireless local loop, especially with regards to configuring a pcm(pulse code modulated) dtmf memory, while supplying a pcm dtmf input signal
KR100548737B1 (en) * 2003-08-13 2006-02-02 주식회사 이엠에프 세이프티 Manufacturing method of electromagnetic wave absorptive material composed of ferrite composite material
US9109614B1 (en) 2011-03-04 2015-08-18 Lightsail Energy, Inc. Compressed gas energy storage system
US9243585B2 (en) 2011-10-18 2016-01-26 Lightsail Energy, Inc. Compressed gas energy storage system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100459313B1 (en) * 1997-07-31 2005-01-17 홍성용 Electromagnetic wave absorber composition comprising fe2o3, nio, zno, cuo, water, dispersant, plasticizer and lubricant, its preparation method, paint composition for absorbing electromagnetic wave containing the composition, its preparation method, its coating method, and device using the paint composition
KR100449884B1 (en) * 1997-12-29 2005-03-08 주식회사 팬택앤큐리텔 Exchange interface device for a wireless local loop, especially with regards to configuring a pcm(pulse code modulated) dtmf memory, while supplying a pcm dtmf input signal
KR100428675B1 (en) * 1999-11-24 2004-04-30 엘지전자 주식회사 Apparatus for transmitting tone by using frequency processing option in electronic switch board
KR100548737B1 (en) * 2003-08-13 2006-02-02 주식회사 이엠에프 세이프티 Manufacturing method of electromagnetic wave absorptive material composed of ferrite composite material
US9109614B1 (en) 2011-03-04 2015-08-18 Lightsail Energy, Inc. Compressed gas energy storage system
US9243585B2 (en) 2011-10-18 2016-01-26 Lightsail Energy, Inc. Compressed gas energy storage system

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