CN1110859A - 离散余弦逆变换器 - Google Patents
离散余弦逆变换器 Download PDFInfo
- Publication number
- CN1110859A CN1110859A CN94115967A CN94115967A CN1110859A CN 1110859 A CN1110859 A CN 1110859A CN 94115967 A CN94115967 A CN 94115967A CN 94115967 A CN94115967 A CN 94115967A CN 1110859 A CN1110859 A CN 1110859A
- Authority
- CN
- China
- Prior art keywords
- signal
- code character
- group
- idct
- grand
- 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.)
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Data Mining & Analysis (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Pure & Applied Mathematics (AREA)
- Computational Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Discrete Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Databases & Information Systems (AREA)
- Algebra (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Image Processing (AREA)
- Complex Calculations (AREA)
Abstract
Description
Claims (5)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019930013512A KR960010199B1 (ko) | 1993-07-16 | 1993-07-16 | 디지탈 신호처리 칩 제어장치 |
KR93-13512 | 1993-07-16 | ||
KR9313512 | 1993-07-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1110859A true CN1110859A (zh) | 1995-10-25 |
CN1056028C CN1056028C (zh) | 2000-08-30 |
Family
ID=19359467
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN94115967A Expired - Lifetime CN1056028C (zh) | 1993-07-16 | 1994-07-15 | 离散余弦逆变换器 |
Country Status (6)
Country | Link |
---|---|
US (1) | US5519648A (zh) |
EP (1) | EP0634726B1 (zh) |
JP (1) | JPH07114533A (zh) |
KR (1) | KR960010199B1 (zh) |
CN (1) | CN1056028C (zh) |
DE (1) | DE69415229T2 (zh) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3339726A1 (de) * | 1983-11-03 | 1985-05-23 | Huppert, Reinhold, 3560 Biedenkopf | Kolbenmotor |
JP4035789B2 (ja) * | 1994-10-13 | 2008-01-23 | 富士通株式会社 | 逆離散コサイン変換装置 |
US6674536B2 (en) | 1997-04-30 | 2004-01-06 | Canon Kabushiki Kaisha | Multi-instruction stream processor |
US6272257B1 (en) * | 1997-04-30 | 2001-08-07 | Canon Kabushiki Kaisha | Decoder of variable length codes |
US8416857B2 (en) * | 2007-03-29 | 2013-04-09 | James Au | Parallel or pipelined macroblock processing |
US8798383B1 (en) * | 2011-03-28 | 2014-08-05 | UtopiaCompression Corp. | Method of adaptive structure-driven compression for image transmission over ultra-low bandwidth data links |
US20130021350A1 (en) * | 2011-07-19 | 2013-01-24 | Advanced Micro Devices, Inc. | Apparatus and method for decoding using coefficient compression |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5202847A (en) * | 1990-07-31 | 1993-04-13 | Inmos Limited | Digital signal processing |
US5349549A (en) * | 1991-09-30 | 1994-09-20 | Sony Corporation | Forward transform processing apparatus and inverse processing apparatus for modified discrete cosine transforms, and method of performing spectral and temporal analyses including simplified forward and inverse orthogonal transform processing |
JP2950682B2 (ja) * | 1992-08-04 | 1999-09-20 | シャープ株式会社 | 逆離散余弦変換演算装置 |
US5345408A (en) * | 1993-04-19 | 1994-09-06 | Gi Corporation | Inverse discrete cosine transform processor |
-
1993
- 1993-07-16 KR KR1019930013512A patent/KR960010199B1/ko not_active IP Right Cessation
-
1994
- 1994-07-15 CN CN94115967A patent/CN1056028C/zh not_active Expired - Lifetime
- 1994-07-18 JP JP16519394A patent/JPH07114533A/ja active Pending
- 1994-07-18 US US08/276,237 patent/US5519648A/en not_active Expired - Lifetime
- 1994-07-18 EP EP19940111173 patent/EP0634726B1/en not_active Expired - Lifetime
- 1994-07-18 DE DE1994615229 patent/DE69415229T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0634726A2 (en) | 1995-01-18 |
DE69415229D1 (de) | 1999-01-28 |
US5519648A (en) | 1996-05-21 |
CN1056028C (zh) | 2000-08-30 |
KR950005029A (ko) | 1995-02-18 |
JPH07114533A (ja) | 1995-05-02 |
KR960010199B1 (ko) | 1996-07-26 |
DE69415229T2 (de) | 1999-07-08 |
EP0634726A3 (en) | 1995-09-06 |
EP0634726B1 (en) | 1998-12-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20030509 Patentee after: Daewoo Electronics Co., Ltd. Patentee before: Daewoo Electronics Co., Ltd. |
|
ASS | Succession or assignment of patent right |
Owner name: FENGYE VISION TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: DAEWOO ELECTRONICS CO., LTD. Effective date: 20130428 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20130428 Address after: Ontario Patentee after: Fengye Vision Technology Co., Ltd. Address before: Seoul special city Patentee before: Daewoo Electronics Co., Ltd. |
|
C17 | Cessation of patent right | ||
CX01 | Expiry of patent term |
Expiration termination date: 20140715 Granted publication date: 20000830 |