DAVID GEOFFREY STORK
Pilots at Cres Ave, Menlo Park, CA

6212296, Apr 3, 2001

Dec 23, 1997

8/996537

David G. Stork - Portola Valley CA
Michael Angelo - Redwood City CA
Gregory J. Wolff - Mountain View CA

Ricoh Company, Ltd. - Tokyo

G06K 900, G09G 500

382188

A method and apparatus to precisely track the position of the writing instrument, specifically the writing end, such as the tip, of a pen. One embodiment of the invention described herein includes a writing instrument containing acceleration sensors and angular velocity sensors. Data from these sensors are processed via an Euler transform to determine the strokes made with the writing instrument. Corrections may be made to improve upon the output of the Euler transform. The data describing the strokes may include graphical representations of the strokes actually made with the writing instrument. Data describing the strokes may be stored or processed to accomplish a variety of tasks such as recording information, faxing a message, recording an appointment, or other such tasks.

2008028, Nov 20, 2008

Jul 31, 2008

12/184171

M. Dirk Robinson - Menlo Park CA, US
David G. Stork - Portola Valley CA, US

RICOH CO., LTD. - Tokyo

H04N 5/225

348335, 348E05024

Adjustments to the optical subsystem of an electro-optic imaging system take into account different subsystems within the overall electro-optic imaging system. In one implementation, end-to-end imaging performance is predicted based on determining propagation of a source through the optical subsystem, the detector subsystem and the digital image processing subsystem. The optical subsystem is then adjusted after taking into account these other subsystems. For example, the compensators for the optical subsystem and the digital image processing subsystem may be jointly adjusted based on a post-processing performance metric that takes into account the effects of the image processing. Unlike in conventional approaches, the intermediate optical image produced by the optical subsystem is not required to be high image quality since, for example, the image may be subsequently improved by other adjustments in the digital image processing subsystem.

2013017, Jul 4, 2013

Dec 30, 2011

13/341638

Christopher J. Clifton - West Lafayette IN, US
John Ross Wallrabenstein - West Lafayette IN, US
David Stork - Portola Valley CA, US

G06F 21/24, G06F 17/30

713167

A method and apparatus is disclosed herein for secure search and retrieval. In one embodiment, the method comprises receiving an encrypted, permuted search tree with nodes that have been permuted and encrypted, the encrypted permuted search tree having been encrypted with a first private encryption key; receiving, at a server, a query from a client, the query comprising a set of keywords, wherein each query term is encrypted with the first private encryption key; performing a search using the query, including performing an oblivious matching keyword test in which an evaluation occurs at each node of the tree to determine if one or more matches exist; and returning results based on a match of keywords for each document, the results including one or more encrypted leaf nodes of the tree, the encrypted leaf nodes encrypted with the first private encryption key.

8248511, Aug 21, 2012

Sep 30, 2009

12/571019

M. Dirk Robinson - Menlo Park CA, US
David G. Stork - Portola Valley CA, US

Ricoh Co., Ltd. - Tokyo

H04N 5/225

348335, 348273

A digital-optical imaging system can be operated in two modes, which shall be referred to as broadband mode and grayscale mode. In broadband mode, different color images are captured and then image processed together. The optics are intentionally aberrated to increase the depth of field, with the image processing compensating for the aberrations. In grayscale mode, the different color images are captured and then image processed separately. The color images are assumed to be correlated so that it is not necessary to have clear images of all color channels. Accordingly, the optics are designed so that the different color images focus at different locations, thus increasing the overall depth of field where at least one color image is in focus.

7120699, Oct 10, 2006

Sep 20, 2001

09/958000

David G. Stork - Portola Valley CA, US
Robert van Glabbeek - Portola Valley CA, US

Ricoh Company, Ltd. - Tokyo

G06F 15/173, G06F 9/44

709239, 717104

The document controlled workflow techniques are provided that can be represented by refinable Petri nets. A document may contain a control code that indicates to the document controlled workflow system to implement specified operations (i. e. , functions) at a refinable place. The operations implemented at the refinable place are determined by the control code in the document. An author of the document can customize a document controlled workflow system of the present invention by entering a control code into a document that triggers the implementation of operations customized to that particular document at a refinable place in the document workflow system. The operations specified by a control code in a document can be represented by a refinement network.

8248684, Aug 21, 2012

Aug 26, 2008

12/198765

M. Dirk Robinson - Menlo Park CA, US
David G. Stork - Portola Valley CA, US

Ricoh Co., Ltd. - Tokyo

G02B 26/00, G02B 26/08

359290

Adaptive optics (AO) elements in imaging system allow dynamic and precise control over the optical wavefront to reduce uncontrolled wavefront errors in imaging systems. Traditional control of such devices is based on inverting the wavefront function to minimize the RMS wavefront error. However, this approach is not always optimal, particularly when the wavefront error is near or exceeds the limit of the AO element's correction capability. In the current approach, the AO element is instead controlled based on a performance metric that takes into account image processing, and not just RMS wavefront error.

7124093, Oct 17, 2006

Sep 7, 2004

10/936782

Jamey Graham - San Jose CA, US
David G. Stork - Portola Valley CA, US
Chuck Lam - San Francisco CA, US

Ricoh Company, Ltd. - Tokyo

G06F 17/60, G06Q 30/00

705 14

An internet target marketing system, method, and computer program for distributing online advertising to viewers based upon the viewers' interests is provided. Specific embodiments according to the present invention can use an n-way matching of user's concepts of interest, advertiser's concepts and a currently viewed document to target advertising to the view of the current document. Some embodiments can generate a contextually sensitive advertisement for each page viewed in a browser, thereby associating an advertisement with every page in a document. Specific embodiments can associate advertising with documents that are substantially free of embedded advertisements, for example. Alternative embodiments can include embedded advertising.

7292728, Nov 6, 2007

Jun 20, 2000

09/597861

Maya Rani Gupta - Seattle WA, US
Michael J. Gormish - Redwood City CA, US
Kathrin Berkner - Palo Alto CA, US
David G. Stork - Portola Valley CA, US

Ricoh Co., Ltd. - Tokyo

G06K 9/36, G06K 9/46

382232, 382266, 382272, 358539

A method and apparatus for block quantization for color halftoning is described. In one embodiment, the method comprises dividing an input image and an output image into blocks, wherein each block in the output image corresponds to one block in the input image. The method also includes dividing each block into subblocks if an edge exists in said each block, calculating a color average of each input block, and calculating a set of output colors for each block in the output image to match the color average of its corresponding block in the input image.

6201903, Mar 13, 2001

Sep 30, 1997

8/940832

Gregory J. Wolff - Mountain View CA
David G. Stork - Portola Valley CA
Michael Angelo - Redwood City CA

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

G06K 920, G06K 922

382317

A method and apparatus for sending a facsimile of a message is disclosed. The present invention provides for recording pen strokes that set forth a message and sending the recorded pen strokes as part of a facsimile.

2014001, Jan 16, 2014

Sep 9, 2013

14/022074

Sapna A. Shroff - Menlo Park CA, US
Kathrin Berkner - Los Altos CA, US
David G. Stork - Portola Valley CA, US

RICOH CO., LTD. - Tokyo

G06F 17/50

703 1

Metrics for characterizing the focusing of a plenoptic imaging system. In one aspect, the metric is based on the high frequency content and/or the blurring of the plenoptic image.