Patent US3072147A successfully refreshed from Google Patents.
Patent US3524940A successfully refreshed from Google Patents.
Patent EP0089145A2 successfully refreshed from Google Patents.
Patent US5576845A successfully refreshed from Google Patents.
US5576845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Encoding apparatus and method for processing color data in blocks
Assignee: Ricoh Co Ltd
•
Filing: 1994-05-19
•
Granted: 1996-11-19
•
Expires: 2014-05-19
Abstract
Abstract The image encoding apparatus and encoding method thereof according to the present invention which encodes a multi-valued (color) image by dividing multi-valued (color) image data to blocks and constituting code data for each block, including the CPU which switches composition of the code data according to the remainder obtained by dividing a typical value in a block which is a portion of said code data by an integral number.
Inventors
- 👤 Manabu Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:34
CPC Classifications
G; G06; G06T; G06T9/00; G06T9/005; H; H04; H04N; H04N19/00; H04N19/10; H04N19/102; H04N19/13; H04N19/60; H04N19/90; H04N19/91
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
An image encoding apparatus encodes multi-valued image data by dividing the image data into blocks and generating code data for each of the blocks, said image encoding apparatus comprising: a controller for extracting data having pixel values in each of said blocks, means for changing composition of said code data according to said data in each block, and means for switching composition of said code data according to the remainder obtained when a value in a block, which is a portion of said code data, is divided by an integral number.
Claim 2
Dependent Claim
91 words
An image encoding apparatus encodes multi-valued image data by dividing the image data into blocks and generating code data for each of the blocks, said image encoding apparatus comprising: a controller for extracting data having pixel values in each of said blocks, means for changing composition of said code data according to said data in each block, and means for switching composition of said code data according to the remainder obtained when a value in a block, which is a portion of said code data, is divided by an integral number.
Claim 3
Dependent Claim
52 words
An image encoding apparatus according to claim 1, wherein said controller checks whether pixel values in first and second blocks are identical or not, and when all pixel values in a block are identical, said controller encodes image data by identifying the number of blocks each composed of the same pixel values.
Claim 4
Dependent Claim
55 words
An image encoding apparatus according to claim 1, wherein, when a block is composed of two types of pixel values, said controller encodes pixel value data according to a code number indicating an intra-block quantized value composition pattern in a plurality of blocks for encoding said pixel value data and a value in said block.
Claim 5
Dependent Claim
84 words
An image encoding method for encoding multi-valued image data by dividing the image data into blocks and generating code data for each of the blocks, said method comprising the steps of: extracting data comprising pixel values in each of said blocks; changing composition of said code data according to said data block; and switching composition of said code data according to the remainder obtained when a value in a block, which is a portion of said code data, is divided by a integral number.
Claim 6
Dependent Claim
84 words
An image encoding method for encoding multi-valued image data by dividing the image data into blocks and generating code data for each of the blocks, said method comprising the steps of: extracting data comprising pixel values in each of said blocks; changing composition of said code data according to said data block; and switching composition of said code data according to the remainder obtained when a value in a block, which is a portion of said code data, is divided by a integral number.
References Cited (Backward Citations)
US4680647A
Cited
US5267333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-11-19 | 2000-05-20 | 2000-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-19 | 2004-05-20 | 2004-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-19 | 2008-05-20 | 2008-11-19 | $7700.00 | Window Closed / Lapsed |