Sergey Y Chemishkian

US Patent:

8072284, Dec 6, 2011

Filed:

Mar 30, 2009

Appl. No.:

12/414448

Inventors:

Stephen Savitzky - San Jose CA, US
Sergey Chemishkian - Cupertino CA, US
Bradley Rhodes - Alameda CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

H03C 3/00

US Classification:

332117, 455 23, 455 24, 455 411, 455 412, 455 42, 455289, 455318, 455334, 455223, 307104, 343850

Abstract:

A split delay-line oscillator for secure data transmission is disclosed. In one embodiment, an apparatus for a split delay-line oscillator for secure data transmission includes a first modulator/demodulator block in a first device, the first modulator/demodulator block operable to insert a first variable delay to modulate a frequency of a shared carrier signal passing through the first modulator/demodulator block, and a second modulator/demodulator block in a second device, the second modulator/demodulator block operable to insert a second variable delay to modulate the frequency of the shared carrier signal passing through the second modulator/demodulator block, wherein the first and second devices create a shared secret by contributing data on the frequency-modulated shared carrier signal.

US Patent:

8089405, Jan 3, 2012

Filed:

Jun 3, 2008

Appl. No.:

12/132507

Inventors:

Kurt W. Piersol - Campbell CA, US
John W. Barrus - Menlo Park CA, US
Stephen R. Savitzky - San Jose CA, US
Sergey Chemishkian - Cupertino CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G01S 1/08

US Classification:

342386

Abstract:

Applications and uses for geographic coded of network access points includes a method for generating a geographic code and an associated graphical user-interface; a method for rejecting or filtering out geographic codes of inaccurately labeled access points; a method for using geographic codes as part of network service discovery; a method for using geographic codes as part of resource discovery and display; a method for using geographic codes for asset tracking; a method for using geographic codes for file transfer and an associated user interface; a method for using geographic codes for location tracking; a method for using geographic codes as part of a domain name registry; and a method for sending geographic codes automatically.

US Patent:

8155121, Apr 10, 2012

Filed:

Mar 27, 2007

Appl. No.:

11/691620

Inventors:

Kenneth F. Gudan - Sunnyvale CA, US
John W. Barrus - Menlo Park CA, US
Kurt W. Piersol - Campbell CA, US
Sergey Chemishkian - Cupertino CA, US

Assignee:

Ricoh Co. Ltd. - Tokyo

International Classification:

H04L 12/28
H04L 12/56

US Classification:

370392, 370401, 370912, 345156, 726 26, 726 27, 709238

Abstract:

A system for using accelerometer-based detection of physical movement for document sharing provides easy and intuitive ways to securely share documents, even without passwords, between computing devices. The system of the present invention includes: at least two computing devices that each have a motion detection device capable of detecting sudden movements and generating a unique signature. The unique signature can then be used to generate signatures or shared secrets for controlling the transfer of data between devices. The motion detection device is capable of detecting sudden movement such as the tapping of the two computing devices together, tapping a stack of computing devices, tossing a computing device in the air. The system may optionally include an intermediary device such as a server for transferring the documents or files between computing devices such that only a small decryption key and file pointer is needed to share records between computing devices. The present invention also includes a novel method for accelerometer-based detection of movement for transferring data between computing devices.

US Patent:

8171117, May 1, 2012

Filed:

Jun 9, 2008

Appl. No.:

12/135725

Inventors:

Bradley J. Rhodes - Alameda CA, US
Sergey Chemishkian - Cupertino CA, US
Edward Schwartz - Sunnyvale CA, US
Max E. McFarland - Sunnyvale CA, US
Daja Phillips - Palo Alto CA, US
Andrea Mariotti - San Carlos CA, US
Haixia Yu - Santa Clara CA, US
Michael G. E. Griffin - Redwood City CA, US
Stephen R. Savitzky - San Jose CA, US
Gregory J. Wolff - Palo Alto CA, US
Patty Case - Saratoga CA, US

Assignee:

Ricoh Co. Ltd. - Tokyo

International Classification:

G06F 15/177

US Classification:

709220, 709201, 709223, 709227

Abstract:

A workflow manager handles the communication between a workflow-enabled provider and a workflow-enabled client. The workflow manager maintains a directory of clients, translates a transaction from a provider into multiple transactions suitable for the client, and handles security. In one embodiment, the workflow manager connects with the workflow-enabled client by registration and with the workflow-enabled provider by advertising and activation. Subsequent communications between the workflow manager and the workflow-enabled provider and the workflow-enabled client are with a request/response protocol. The workflow manager also comprises data storage for storing data for transmission to the workflow-enabled client or the workflow-enabled provider, and workflow storage for storing information related to registered clients. The present invention also includes a number of novel methods including a method for a method for registering a client and a method for activating a provider.

US Patent:

8447989, May 21, 2013

Filed:

Oct 2, 2008

Appl. No.:

12/244714

Inventors:

John Barrus - Menlo Park CA, US
Michael Gormish - Redwood City CA, US
Sergey Chemishkian - Cupertino CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G06F 21/00

US Classification:

713181

Abstract:

A method and apparatus for maintaining a tamper proof device log are described. In one embodiment, the method comprises maintaining an embedded log in the device, the embedded log being a chain of log entries. In one embodiment, the method may also comprise publishing at least one log entry to a location external to the device.

US Patent:

8484176, Jul 9, 2013

Filed:

Sep 8, 2009

Appl. No.:

12/555686

Inventors:

Kurt W. Piersol - Campbell CA, US
Michael J. Gormish - Redwood City CA, US
John W. Barrus - Menlo Park CA, US
Edward L. Schwartz - Sunnyvale CA, US
Kenneth F. Gudan - Sunnyvale CA, US
Richard D. Kosoglow - Redwood City CA, US
Stephen R. Savitzky - San Jose CA, US
Sergey Chemishkian - Cupertino CA, US

Assignee:

Ricoh Co., Ltd. - Tokyo

International Classification:

G06F 17/30
G06F 7/00

US Classification:

707705, 707769, 707779, 706 45, 706 46, 706 47

Abstract:

A multi-provider forms processing system with retry upon failure comprises: a plurality of portable computing devices, a plurality of service providers and a paper-like forms server coupled by a network. The paper-like forms server performs the scheduling, routing, logging, verification and billing for the paper-like processing of compound documents. The paper-like forms server comprises a central schedule, a retry module and a billing module. The multi-provider forms processing system is advantageous because it monitors for failure of transactions, automatically issues a retry or replacement transactions and adjusts the billing for the failed transaction. In particular, the central scheduler tracks and determines when transaction failures occur, and based on these failures revises the billing to users and credits to service providers. The central scheduler also monitors the logs for completion as well as restarts, attempts, failure, reworked and re-performed transaction steps and modifies the bills accordingly.

US Patent:

8572695, Oct 29, 2013

Filed:

Sep 8, 2009

Appl. No.:

12/555689

Inventors:

Timothee Bailloeul - Sunnyvale CA, US
Kenneth F. Gudan - Sunnyvale CA, US
Xu Liu - Cupertino CA, US
Kurt W. Piersol - Campbell CA, US
Michael J. Gormish - Redwood City CA, US
John W. Barrus - Menlo Park CA, US
Edward L. Schwartz - Sunnyvale CA, US
Richard D. Kosoglow - Redwood City CA, US
Stephen R. Savitzky - San Jose CA, US
Sergey Chemishkian - Cupertino CA, US

Assignee:

Ricoh Co., Ltd - Tokyo

International Classification:

G06F 21/24

US Classification:

726 4, 726 21

Abstract:

A system and method for applying a pre-existing physical seal authorization to documents provides for authentication of electronic documents using physical seals and without interrupting the electronic workflow. The system of the present invention includes a seal capture device coupled to a computer, and the computer coupled by a network to a paper-like document server. The seal capture device detects depression of a seal thereon and outputs the image of the seal and other metadata to the computer. The computer stores the metadata in its local log using a logging module. The computer also adds the image of the seal and other metadata to the electronic document being displayed. Finally, the computer sends the metadata for storage in the global log of the paper-like document server, and the authorized document to the next step in the electronic workflow. The paper-like document server stores the metadata in other servers or entangles the global log with the logs of other servers for additional security.

US Patent:

20080232788, Sep 25, 2008

Filed:

Mar 19, 2007

Appl. No.:

11/688217

Inventors:

Kurt W. Piersol - Campbell CA, US
Peter E. Hart - Menlo Park CA, US
Sergey Chemishkian - Cupertino CA, US

International Classification:

G03B 17/00

US Classification:

396 50, 396431

Abstract:

A tilt-sensitive viewfinder indicates the area of an object plane within view of the camera using a visible signal projected from the camera. A direction sensor determines the camera orientation and modifies the visible signal as the camera orientation changes. Changes in appearance of the visible signal reflect changes in the camera field of view. Data from the direction sensor describing camera orientation may be stored in a data storage device and may be associated with data describing the captured image. The stored camera orientation data improves processing of captured images by providing information about angular components of the captured images.