KR100194922B1 - 화면비 변환장치 - Google Patents
화면비 변환장치 Download PDFInfo
- Publication number
- KR100194922B1 KR100194922B1 KR1019960013480A KR19960013480A KR100194922B1 KR 100194922 B1 KR100194922 B1 KR 100194922B1 KR 1019960013480 A KR1019960013480 A KR 1019960013480A KR 19960013480 A KR19960013480 A KR 19960013480A KR 100194922 B1 KR100194922 B1 KR 100194922B1
- Authority
- KR
- South Korea
- Prior art keywords
- aspect ratio
- frequency
- read
- enable signal
- memory
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
- H04N7/0122—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal the input and the output signals having different aspect ratios
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F5/00—Methods or arrangements for data conversion without changing the order or content of the data handled
- G06F5/06—Methods or arrangements for data conversion without changing the order or content of the data handled for changing the speed of data flow, i.e. speed regularising or timing, e.g. delay lines, FIFO buffers; over- or underrun control therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
- H04N7/0105—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level using a storage device with different write and read speed
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computer Graphics (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Television Systems (AREA)
Abstract
Description
Claims (3)
- 제1화면비를 제2화면비로 변환하기 위한 화면비 변환장치에 있어서, 쓰기 및 읽기인에이블신호와 제1주파수의 쓰기클럭신호와 상기 제1주파수와 다른 제1주파수의 읽기클럭신호를 발생하는 제어회로와, 상기 쓰기인에이블신호에 응답하여 상기 제1주파수에 동기하는 비디오 데이터를 쓰고, 상기 읽기인에이블신호에 응답하여 상기 제2주파수에 동기하는 상기 쓰여진 비디오 데이터를 읽어내는 메모리를 가짐으로써 상기 메모리는 적어도 상기 제1주파수와 상기 제2주파수의 차에 대응하는 화소데이터를 저장할 수 있는 용량을 가짐을 특징으로 하는 화면비 변환장치.
- 제1항에 있어서, 상기 제1주파수가 상기 제2주파수보다 상대적으로 고주파인 것을 특징으로 하는 장치.
- 제1항에 있어서, 상기 제1주파수는 18MHz이고 상기 제2주파수는 13.5MHz임을 특징으로 하는 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013480A KR100194922B1 (ko) | 1996-04-29 | 1996-04-29 | 화면비 변환장치 |
US08/719,623 US5793434A (en) | 1996-04-29 | 1996-09-25 | Aspect ratio converter and method thereof |
CN96112423A CN1102317C (zh) | 1996-04-29 | 1996-10-15 | 宽高比转换器及其方法 |
JP8287087A JPH09307832A (ja) | 1996-04-29 | 1996-10-29 | 画面比変換装置及び方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019960013480A KR100194922B1 (ko) | 1996-04-29 | 1996-04-29 | 화면비 변환장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR970073090A KR970073090A (ko) | 1997-11-07 |
KR100194922B1 true KR100194922B1 (ko) | 1999-06-15 |
Family
ID=19457072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960013480A Expired - Fee Related KR100194922B1 (ko) | 1996-04-29 | 1996-04-29 | 화면비 변환장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US5793434A (ko) |
JP (1) | JPH09307832A (ko) |
KR (1) | KR100194922B1 (ko) |
CN (1) | CN1102317C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100662219B1 (ko) * | 1998-11-13 | 2007-01-02 | 소니 가부시끼 가이샤 | 클록 생성 회로, 화상 표시 장치 및 방법 |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6404458B1 (en) * | 1995-06-28 | 2002-06-11 | Lg Electronics Inc. | Apparatus for converting screen aspect ratio |
US6360018B1 (en) * | 1996-04-10 | 2002-03-19 | Canon Kabushiki Kaisha | Image processing apparatus and method |
JPH10341415A (ja) * | 1997-06-06 | 1998-12-22 | Pioneer Electron Corp | 画像処理装置 |
JP4345937B2 (ja) * | 1998-11-10 | 2009-10-14 | キヤノン株式会社 | 画像拡大処理回路 |
US6115072A (en) * | 1999-01-27 | 2000-09-05 | Motorola, Inc. | 16:9 aspect ratio conversion by letterbox method for an MPEG image |
KR100323678B1 (ko) * | 2000-02-28 | 2002-02-07 | 구자홍 | 화면비 변환 장치 |
JP4144193B2 (ja) * | 2000-10-25 | 2008-09-03 | ソニー株式会社 | 表示パネル、及びディスプレイ装置 |
KR100429874B1 (ko) * | 2001-07-20 | 2004-05-04 | 삼성전자주식회사 | 파노라마/워터글라스 기능 구현을 위한 영상 처리 장치 및그 방법 |
US7274382B2 (en) * | 2003-07-16 | 2007-09-25 | Plut William J | Customizable background sizes and controls for changing background size |
US7928994B2 (en) | 2003-07-16 | 2011-04-19 | Transpacific Image, Llc | Graphics items that extend outside a background perimeter |
US7570270B2 (en) * | 2004-05-21 | 2009-08-04 | Broadcom Corporation | Buffer for driving display with asynchronous display engine |
KR100618870B1 (ko) * | 2004-10-23 | 2006-08-31 | 삼성전자주식회사 | 데이터 트레이닝 방법 |
CN101742081B (zh) * | 2009-12-11 | 2012-11-21 | 华亚微电子(上海)有限公司 | 图像稳定器 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331346A (en) * | 1992-10-07 | 1994-07-19 | Panasonic Technologies, Inc. | Approximating sample rate conversion system |
JPH06217218A (ja) * | 1993-01-13 | 1994-08-05 | Sony Corp | テレテキスト信号処理回路 |
JPH0851600A (ja) * | 1994-08-04 | 1996-02-20 | Sanyo Electric Co Ltd | 映像信号変換装置 |
US5677737A (en) * | 1995-12-27 | 1997-10-14 | Rca Thomson Licensing Corporation | Video compression for wide screen television |
-
1996
- 1996-04-29 KR KR1019960013480A patent/KR100194922B1/ko not_active Expired - Fee Related
- 1996-09-25 US US08/719,623 patent/US5793434A/en not_active Expired - Lifetime
- 1996-10-15 CN CN96112423A patent/CN1102317C/zh not_active Expired - Fee Related
- 1996-10-29 JP JP8287087A patent/JPH09307832A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100662219B1 (ko) * | 1998-11-13 | 2007-01-02 | 소니 가부시끼 가이샤 | 클록 생성 회로, 화상 표시 장치 및 방법 |
Also Published As
Publication number | Publication date |
---|---|
JPH09307832A (ja) | 1997-11-28 |
CN1102317C (zh) | 2003-02-26 |
US5793434A (en) | 1998-08-11 |
KR970073090A (ko) | 1997-11-07 |
CN1164164A (zh) | 1997-11-05 |
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