KR930011602A - The resolution and linear density converter of the image data of the facsimile system - Google Patents
The resolution and linear density converter of the image data of the facsimile system Download PDFInfo
- Publication number
- KR930011602A KR930011602A KR1019910021240A KR910021240A KR930011602A KR 930011602 A KR930011602 A KR 930011602A KR 1019910021240 A KR1019910021240 A KR 1019910021240A KR 910021240 A KR910021240 A KR 910021240A KR 930011602 A KR930011602 A KR 930011602A
- Authority
- KR
- South Korea
- Prior art keywords
- resolution
- clock
- image data
- output
- outputting
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
- Facsimile Transmission Control (AREA)
Abstract
화상 데이터를 송수신하는 팩시밀리 시스템에서의 해상도 변환장치에 관한 것으로, 특히 팩시밀리 시스템의 화상 데이터를 소망하는 해상도로 축소/확대하는 변환장치에 관한 것이다.The present invention relates to a resolution converting device in a facsimile system for transmitting and receiving image data, and more particularly, to a converting device for reducing / enlarging image data of a facsimile system to a desired resolution.
상기 해상도 변환장치는 시스템을 제어하는 MPU(14)로부터의 해상도 변환 정보 및 변환개시 신호를 입력하는 해상도변환에 따른 어드레스발생 제어신호와 클럭제어신호를 출력하여 MPU 인터페이스부(34)와, SIF(18)로부터 출력되는 스캔 화상 데이터를 입력 버퍼링하며, 내부 저장영역에 데이터가 있을 때 인에이블신호를 출력하는버퍼(36)와, 상기 버퍼(36)로부터 출력되는 1라인분의 화상 데이터를 저장하여 출력하는 라인메모리(38)와, 소정 주기의 클럭을 발생하는 클럭발생기(40)와, 상기 MPU 인터페이스부(34)로부터 출력되는 변환개시 신호에 의해 동작되며 해상도변환 정보에 따른 메모리의 어드레스를 발생하여 상기 메모리(24)에 입력시키는 어드레스발생부(52)와, 상기 라인 메모리(38)로부터 소정의 주기로 출력되는 화상 데이터를 해상도변환 클럭 속도에 따라 래치 출력하는 래치(44)와, 상기 버퍼(36)로부터 출력되는 인에이블신호에 동작되며, 상기 MPU 인터페이스부(34)로부터 출력되는 해상도변환 정보에 따라 상기 클럭발생기(40)의 클럭을 가변하여 상기 래치(44)의 클럭으로 제공하는 클럭제어부(46)와, 상기 클럭제어부(46)로부터 출력되는 해상도변환 클럭을 카운트하여 해상도 및 선밀도가 변환된 화상 데이더의 라인수를 상기 MPU 인터페이스부(34)에 입력시키는 라인검출 카운터(48)로 구성된다.The resolution converting device outputs an address generation control signal and a clock control signal according to the resolution conversion inputting the resolution conversion information and the conversion start signal from the MPU 14 controlling the system, and outputs the MPU interface unit 34 and the SIF ( 18) buffers the scanned image data outputted from 18), stores a buffer 36 for outputting an enable signal when there is data in the internal storage area, and stores image data for one line outputted from the buffer 36 It is operated by a line memory 38 to output, a clock generator 40 generating a clock of a predetermined period, and a conversion start signal output from the MPU interface unit 34, and generates an address of a memory according to the resolution conversion information. A resolution converting clock speed to the address generator 52 and the image data outputted from the line memory 38 at predetermined intervals to be input to the memory 24 In response to the latch 44 outputting the latch and the enable signal output from the buffer 36, the clock of the clock generator 40 is varied according to the resolution conversion information output from the MPU interface unit 34. The MPU interface unit by counting the number of lines of the image data whose resolution and line density are converted by counting a clock control unit 46 which provides the clock of the latch 44 and a resolution conversion clock output from the clock control unit 46. And a line detection counter 48 for inputting to 34.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제1도는 종래의 팩시밀리 시스템의 블럭도,1 is a block diagram of a conventional facsimile system,
제2도는 본 발명에 따른 팩시밀리 시스템의 블럭도,2 is a block diagram of a facsimile system according to the present invention;
제3도는 본발명에 따른 해상도 변환장치의 회로도.3 is a circuit diagram of a resolution converter according to the present invention.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910021240A KR940002976B1 (en) | 1991-11-26 | 1991-11-26 | Picture data changing device for fax system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019910021240A KR940002976B1 (en) | 1991-11-26 | 1991-11-26 | Picture data changing device for fax system |
Publications (2)
Publication Number | Publication Date |
---|---|
KR930011602A true KR930011602A (en) | 1993-06-24 |
KR940002976B1 KR940002976B1 (en) | 1994-04-09 |
Family
ID=19323511
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019910021240A KR940002976B1 (en) | 1991-11-26 | 1991-11-26 | Picture data changing device for fax system |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940002976B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100235197B1 (en) * | 1996-12-24 | 1999-12-15 | 유기범 | Resolution conversion apparatus in facsimile |
-
1991
- 1991-11-26 KR KR1019910021240A patent/KR940002976B1/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100235197B1 (en) * | 1996-12-24 | 1999-12-15 | 유기범 | Resolution conversion apparatus in facsimile |
Also Published As
Publication number | Publication date |
---|---|
KR940002976B1 (en) | 1994-04-09 |
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