Martin Paul Boliek

US Patent:

6510246, Jan 21, 2003

Filed:

Sep 29, 1997

Appl. No.:

08/942139

Inventors:

Martin Boliek - San Francisco CA
Michael J. Gormish - Redwood City CA
Edward L. Schwartz - Sunnyvale CA

Assignee:

Ricoh Company, LTD - Tokyo
Ricoh Corporation - West Caldwell NJ

International Classification:

G06K 936

US Classification:

382232, 382166

Abstract:

This provides for processing information by receiving downsampled pixel values, via, for instance, error diffusion, and upsampling each of the downsampled pixel values to construct a block of upsampled pixel values using statistics based on template pattern values of a predetermined number of downsampled pixel values or using replication.

US Patent:

6754394, Jun 22, 2004

Filed:

May 1, 2000

Appl. No.:

09/562648

Inventors:

Martin Boliek - San Francisco CA
Michael J. Gormish - Redwood City CA
Alexander F. Keith - Palo Alto CA
Edward L. Schwartz - Sunnyvale CA

Assignee:

Ricoh Company, Ltd. - Tokyo

International Classification:

G06K 936

US Classification:

382240, 382248, 382251, 382264, 382266

Abstract:

A method and apparatus for encoding and decoding data that includes generating transformed signals in response to input data. In one embodiment, the transformed signals are generated using a reversible wavelet transform. The present invention also includes a method and apparatus for compressing the transform signals into data representing a losslessly compressed version of the input data. In one embodiment, the present invention decomposes the input data using reversible wavelet transforms.

US Patent:

6757437, Jun 29, 2004

Filed:

Jan 30, 2001

Appl. No.:

09/773322

Inventors:

Alexander F. Keith - East Palo Alto CA
Edward L. Schwartz - Sunnyvale CA
Ahmad Zandi - Cupertino CA
Martin Boliek - San Francisco CA
Michael J. Gormish - Los Altos CA

Assignee:

Ricoh Co., Ltd. - Tokyo
Ricoh Corporation - Menlo Park CA

International Classification:

G06K 936

US Classification:

382240, 382166, 382233, 382248

Abstract:

A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient transform implemented with integer arithmetic that has exact reconstruction. The present invention uses the reversible wavelet filter in a lossless system (or lossy system) in which an embedded codestream is generated from the coefficients produced by the filter. An entropy coder performs entropy coding on the embedded codestream to produce the compressed data stream.

US Patent:

6873734, Mar 29, 2005

Filed:

Feb 7, 2000

Appl. No.:

09/499255

Inventors:

Ahmad Zandi - Cupertino CA, US
Edward L. Schwartz - Sunnyvale CA, US
Michael J. Gormish - Los Altos CA, US
Martin Boliek - San Francisco CA, US

Assignee:

Ricoh Company LTD - Tokyo
Ricoh Corporation - Menlo Park CA

International Classification:

G06K009/36
G06K009/46

US Classification:

382233, 382251, 382240

Abstract:

A compression and decompression system in which a reversible wavelet filter are used to generates coefficients from input data, such as image data. The reversible wavelet filter is an efficient transform implemented with integer arithmetic that has exact reconstruction. The present invention uses the reversible wavelet filter in a lossless system (or lossy system) in which an embedded codestream is generated from the coefficients produced by the filter. An entropy coder performs entropy coding on the embedded codestream to produce the compressed data stream.

US Patent:

6898323, May 24, 2005

Filed:

Feb 15, 2001

Appl. No.:

09/784928

Inventors:

Edward L. Schwartz - Sunnyvale CA, US
Michael J. Gormish - Redwood City CA, US
Martin Boliek - San Francisco CA, US
Kok Gi Wu - Daly City CA, US

Assignee:

Ricoh Company, Ltd. - Tokyo

International Classification:

G06K009/36

US Classification:

382240, 382305

Abstract:

A system comprising a memory and wavelet processing logic is described. The memory is sized to include lines to store a band of an image and additional lines. The wavelet processing logic comprises a wavelet transform and access logic. The wavelet transform generates coefficients when applied to data in the memory. The access logic reads data from the memory into the line buffers to supply data stored in the memory to the wavelet transform and to store coefficients in the memory, such that after data stored at a first pair of lines is read from memory into the buffers of the access logic. The access logic reuses the first pair of lines to store coefficients generated by the wavelet transform that are associated with a second pair of lines different from the first pair of lines.

US Patent:

6904178, Jun 7, 2005

Filed:

Mar 6, 2001

Appl. No.:

09/801218

Inventors:

Martin Boliek - San Francisco CA, US
Michael J. Gormish - Redwood City CA, US
Edward L. Schwartz - Sunnyvale CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G06K009/46

US Classification:

382251, 382240

Abstract:

A method and apparatus for eliminating flicker by quantizing values based on previous quantization is described. In one embodiment, the method comprises encoding a first coefficient value in a first frame of a motion sequence and subsequently setting a second coefficient in a second frame of the motion sequence and in the same position as the first coefficient to be within a predetermined closeness with the value of the first coefficient.

US Patent:

6925209, Aug 2, 2005

Filed:

Mar 6, 2001

Appl. No.:

09/800633

Inventors:

Martin Boliek - San Francisco CA, US
Michael J. Gormish - Redwood City CA, US
Edward L. Schwartz - Sunnyvale CA, US
Kok Gi Wu - Daly City CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G06K009/36

US Classification:

382239, 382240

Abstract:

A method and apparatus for outputting a codestream as multiple tile-part outputs with packets from tiles being output in each tile-part is described. In one embodiment, the method comprises coding of each tile of an input codestream, outputting packets of each tile as part of an output codestream as a first complete tile-part, storing remaining layers of each tile in a buffer, and outputting additional packets of each tile from the remaining layers as a second complete tile-part.

US Patent:

6973217, Dec 6, 2005

Filed:

Mar 6, 2001

Appl. No.:

09/800832

Inventors:

Martin Boliek - San Francisco CA, US
Kok Gi Wu - Daly City CA, US
Edward L. Schwartz - Sunnyvale CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G06K009/38

US Classification:

382251, 382233

Abstract:

A method and apparatus for sending additional sideband information in a codestream is described. In one embodiment, the method comprises receiving a JPEG 2000 codestream of compressed image data having sideband information hidden therein and decompressing the codestream based on the sideband information.