ROBERT PAUL ROBIDEAU
Pilots at Joylene Dr, Webster, NY
License number
New York A4209164
Issued Date
Jun 2016
Expiration Date
Jun 2018
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
934 Joylene Dr, Webster, NY 14580
Professional information
Error Diffusion Method And Hardware Architecture
US Patent:
7627188, Dec 1, 2009
Filed:
Nov 20, 2008
Appl. No.:
12/274842
Inventors:
David Jon Metcalfe - Marion NY, US
Zhenhuan Wen - Rochester NY, US
Robert Paul Robideau - Webster NY, US
Zhenhuan Wen - Rochester NY, US
Robert Paul Robideau - Webster NY, US
Assignee:
Xerox Corporation - Norwalk CT
International Classification:
G06K 9/36
US Classification:
382252
Abstract:
A system and method for performing threshold stamping are disclosed. First and second threshold values corresponding to first and second pixels may be retrieved from a threshold memory. A plurality of upscaled threshold values may optionally be computed based on the first threshold value and the second threshold value. An (upscaled) threshold value may be updated at each of one or more first register blocks. A binary pixel value may be computed based at least in part on the first updated threshold value. The first updated threshold value may be updated at each of one or more second register blocks. A downscaled threshold value may optionally be computed based on a plurality of second updated threshold values. The downscaled threshold value or second updated threshold value may be damped in a damping circuit, and the damped threshold value may be stored in the threshold memory.
Error Diffusion Method And Hardware Architecture
US Patent:
7460727, Dec 2, 2008
Filed:
Jun 30, 2005
Appl. No.:
11/172151
Inventors:
David Jon Metcalfe - Marion NY, US
Zhenhuan Wen - Rochester NY, US
Robert Paul Robideau - Webster NY, US
Zhenhuan Wen - Rochester NY, US
Robert Paul Robideau - Webster NY, US
Assignee:
Xerox Corporation - Norwalk CT
International Classification:
G06K 9/36
US Classification:
382252
Abstract:
A system and method for performing threshold stamping are disclosed. First and second threshold values corresponding to first and second pixels may be retrieved from a threshold memory. A plurality of upscaled threshold values may optionally be computed based on the first threshold value and the second threshold value. An (upscaled) threshold value may be updated at each of one or more first register blocks. A binary pixel value may be computed based at least in part on the first updated threshold value. The first updated threshold value may be updated at each of one or more second register blocks. A downscaled threshold value may optionally be computed based on a plurality of second updated threshold values. The downscaled threshold value or second updated threshold value may be damped in a damping circuit, and the damped threshold value may be stored in the threshold memory.
Scanner With Document And Copy Sheet Registration Means
US Patent:
5077614, Dec 31, 1991
Filed:
Jul 2, 1990
Appl. No.:
7/547272
Inventors:
Denis J. Stemmle - Webster NY
Robert Robideau - Webster NY
Robert Robideau - Webster NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
H04N 1028, H04N 1034, H04N 110, B65H 906
US Classification:
358296
Abstract:
A combined input scanner and output scanner has a frame assembly, a document transport to transport a document through the scanner in a path in a first direction and, a copy sheet transport to transport a copy sheet through the scanner a document registration means and a copy sheet registration means, the document registration gate including a cover pivotally mounted on the machine for movement between an open and closed position over the document transport path, said cover having at least one document registration gate adjacent its downstream end which extends into the document transport path to register the lead edge of a document when the cover is in the open position, the copy sheet registration means including at least one copy sheet registration gate in the copy sheet transport path to register the lead edge of a copy sheet when said cover is in the open position. The cover has a tab for removing the at least one copy sheet registration gate from the copy sheet transport when the cover is in the closed position over the document transport path.
Compact Read/Write Scanner
US Patent:
5162916, Nov 10, 1992
Filed:
Jul 2, 1990
Appl. No.:
7/547264
Inventors:
Denis J. Stemmle - Webster NY
Robert Robideau - Webster NY
Robert Robideau - Webster NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
H04N 1028, H04N 1032, H04N 110, H04N 123
US Classification:
358296
Abstract:
Combined input scanner and output scanner has a scanning carriage adapted for scanning movement having a reading head secured thereto for scanning a document to produce a digital image and a printing head secured thereto for relative movement with respect to a copy sheet and electrically connected to the reading head for printing a digital image on a copy sheet. The reading head includes a solid state device with input reading elements and the printing head includes a solid state device with output printing elements which are securely comounted in the same plane to the same planar substrate.
Method And System For Error Compensation
US Patent:
2007000, Jan 4, 2007
Filed:
Jun 30, 2005
Appl. No.:
11/171936
Inventors:
David Metcalfe - Marion NY, US
Zhenhuan Wen - Rochester NY, US
Robert Robideau - Webster NY, US
Zhenhuan Wen - Rochester NY, US
Robert Robideau - Webster NY, US
International Classification:
H04N 1/40
US Classification:
358003030
Abstract:
A method and system for performing error diffusion is disclosed. An error value for a pixel may be received and used to determine one or more error diffusion values. The error diffusion values may be determined by performing bit shifting of the error value. Truncation of the error diffusion values may result in a difference between the error value and a sum of the error diffusion values. This difference may be compensated for by adding error compensation values to the error diffusion values to yield compensated error diffusion values. The compensated error diffusion values may then be diffused to appropriate destination pixels.
Vertical Line Width Control Ionographic System
US Patent:
5081475, Jan 14, 1992
Filed:
Jul 30, 1990
Appl. No.:
7/560535
Inventors:
John A. Frank - Webster NY
Brendan C. Casey - Webster NY
Robert P. Robideau - Webster NY
Brendan C. Casey - Webster NY
Robert P. Robideau - Webster NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
G01D 1506
US Classification:
346159
Abstract:
A device for the adjustment of the digital data stream that drives the modulators in an ionographic printing device. In particular, the device stretches strings of black image pixels to produce wider vertical lines and other fine details that may have been adversely affected due to modulator crosstalk. Moreover, the present invention is implemented in such a manner, so as to enable the end user to selectively define the magnitude of stretching to be applied to the strings of black pixels.
Scan Image Processing
US Patent:
5282053, Jan 25, 1994
Filed:
Oct 23, 1991
Appl. No.:
7/782200
Inventors:
Robert P. Robideau - Webster NY
Assignee:
Xerox Corporation - Stamford CT
International Classification:
H04H 100, H04N 514
US Classification:
358406
Abstract:
The method of scanning a document by providing a test patch to be scanned, initially scanning the test patch and storing the signal response of each reading element to the test patch in a pixel threshold table, providing a document to be scanned, scanning the document and comparing the signal response of each reading element with the corresponding signal response in the pixel threshold table, and printing a mark or not printing a mark in response to the comparison for each reading element. The method includes an extended threshold table to cover halftone cells.