Randy R Jones

US Patent:

6786563, Sep 7, 2004

Filed:

Apr 18, 2002

Appl. No.:

10/125681

Inventors:

Randy Q. Jones - Sunnyvale CA

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

B41J 201

US Classification:

347 2, 347101, 347107

Abstract:

Methods and apparatus for interleaved printing of individual ink objects at target print sectors disbursed around an annular surface on a circular spinning media such as on a CD, dynamically during the radial printing process, are described. Mechanisms for interleaving printing during the radial printing process, enabling the use of commercially available ink jet pens for radial printing directly on CD devices at greater than 2Ã rotation speeds, and thus reducing pen limitations in firing frequency and recovery time, are disclosed.

US Patent:

6910750, Jun 28, 2005

Filed:

May 30, 2002

Appl. No.:

10/159729

Inventors:

Randy Q. Jones - Sunnyvale CA, US
Jan E. Unter - Granite Bay CA, US
George L. Bradshaw - Palo Alto CA, US

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

B41J003/00

US Classification:

347 2, 347 4, 347 86

Abstract:

Disclosed are embodiments of an ink cartridge that includes therein a print head for dispensing ink onto a media, a movement mechanism for enabling movement of the print head, and/or an ink service station. In one embodiment, the cartridge is designed to be inserted into a receptacle so that the cartridge and receptacle form a radial printing system. The receptacle may also include a motion actuator for engaging with the movement mechanism of the cartridge to thereby move the print head of the cartridge. The movement mechanism of the cartridge works in conjunction with the actuator of the receptacle to thereby move the print head with respect to the cartridge, e. g. , moving into and out of the cartridge, and with respect to a rotating media to enable ink to be dispensed by the print head along a radius of a rotating circular media. In a specific implementation, the cartridge remains fixed with respect to the media. In an example application, the radial print system may be used to print a label on the top surface of a recordable circular media, such as a recordable compact disc (CD-R).

US Patent:

7085017, Aug 1, 2006

Filed:

Jul 26, 2002

Appl. No.:

10/207662

Inventors:

Randy Q. Jones - Sunnyvale CA, US
Jan E. Unter - Danville CA, US

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

H04N 1/405
G06K 15/00

US Classification:

358 32, 358 306, 358 311, 358 33

Abstract:

Disclosed are apparatus and methods for implementing polar halftone techniques that substantially reduce or eliminate interference patterns while printing on rotating circular media with a radial print system. In one embodiment, Cartesian image pixels are selected such that screen pixels or “dots” are arranged fan-shaped along radii (or “spokes”) and in annular ring segments (or “arcs”). Halftone sampling frequency may be varied along spokes and arcs or along a polynomial curve relative to the center of spinning media, in order to reduce distortion and artifacts.

US Patent:

7284804, Oct 23, 2007

Filed:

Sep 7, 2004

Appl. No.:

10/935805

Inventors:

Randy Q. Jones - Sunnyvale CA, US
Michael R. Thompson - Los Gatos CA, US
Carl E. Youngberg - Mapleton UT, US

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

B41J 3/00
B41J 29/38

US Classification:

347 2, 347 9, 347 14

Abstract:

Methods and apparatus for interleaved printing of individual ink objects at target print sectors disbursed around an annular surface on a circular spinning media such as on a CD, dynamically during the radial printing process, are described. Mechanisms for interleaving printing during the radial printing process, enabling the use of commercially available ink jet pens for radial printing directly on CD devices at greater than 2× rotation speeds, and thus reducing pen limitations in firing frequency and recovery time, are disclosed.

US Patent:

7748807, Jul 6, 2010

Filed:

Feb 21, 2006

Appl. No.:

11/359193

Inventors:

Randy Quinn Jones - Sunnyvale CA, US
Carl Eric Youngberg - Mapleton UT, US
Clayton Grant Gardner - Alamo CA, US
Robert Steven Struk - Sunnyvale CA, US
Thomas John Lugaresi - Los Gatos CA, US
Michael Ralph Thompson - Los Gatos CA, US
George Lynn Bradshaw - Palo Alto CA, US
James Charles Brick - Sunnyvale CA, US
Jan Eugene Unter - Alamo CA, US

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

B41J 3/00
B41J 29/38
B41J 2/01

US Classification:

347 2, 347 9, 347 14, 347 16, 347101

Abstract:

Method and apparatus for printing onto a rotating media is described. According to one embodiment, the printing system includes a print head that is laterally displaced from a radial printing radius, a rotating mechanism to rotate the media, and a controller to print onto an annular print area. The annular print area is defined by an inner hub circumference, two lines substantially parallel to the radial printing radius and tangential to the inner hub circumference, and an outer edge of the media. The print head moves about the annular print area by one or more motion mechanism and prints images onto the media.

US Patent:

20010035886, Nov 1, 2001

Filed:

Jun 1, 2001

Appl. No.:

09/873010

Inventors:

George Bradshaw - Palo Alto CA, US
Markus Covert - Palo Alto CA, US
Randy Jones - Sunnyvale CA, US
Michael Sorensen - San Jose CA, US
Jan Unter - San Jose CA, US

International Classification:

B41J003/00

US Classification:

347/002000

Abstract:

Method and apparatus for receiving an image source representative of an image to be printed on an outer surface of a rotating media is described. The image source has a plurality of image points. A radial printing system is described that includes an imaging system configured to convert the plurality of image points into a polar-based representation of the image and a head assembly coupled to the imaging system for outputting the polar-based representation of the image onto the rotating media. The rotating media may represent a compact disk, wherein an inner surface of the compact disk is configured to store digital data

US Patent:

20060238813, Oct 26, 2006

Filed:

Jun 23, 2006

Appl. No.:

11/473824

Inventors:

Randy Jones - Sunnyvale CA, US
Jan Unter - Danville CA, US

International Classification:

H04N 1/405

US Classification:

358003060

Abstract:

Disclosed are apparatus and methods for implementing polar halftone techniques that substantially reduce or eliminate interference patterns while printing on rotating circular media with a radial print system. In one embodiment, Cartesian image pixels are selected such that screen pixels or “dots” are arranged fan-shaped along radii (or “spokes”) and in annular ring segments (or “arcs”). Halftone sampling frequency may be varied along spokes and arcs or along a polynomial curve relative to the center of spinning media, in order to reduce distortion and artifacts.

US Patent:

62642952, Jul 24, 2001

Filed:

Apr 17, 1998

Appl. No.:

9/062300

Inventors:

George Lynn Bradshaw - Palo Alto CA
Markus Willard Covert - Palo Alto CA
Randy Quinn Jones - Sunnyvale CA
Michael Keith Sorensen - San Jose CA
Jan Eugene Unter - San Jose CA

Assignee:

Elesys, Inc. - Sunnyvale CA

International Classification:

B41J 201
B41J 215

US Classification:

347 2

Abstract:

Method and apparatus for receiving an image source representative of an image to be printed on an outer surface of a rotating media is described. The image source has a plurality of image points. A radial printing system is described that includes an imaging system configured to convert the plurality of image points into a polar-based representation of the image and a head assembly coupled to the imaging system for outputting the polar-based representation of the image onto the rotating media. The rotating media may represent a compact disk, wherein an inner surface of the compact disk is configured to store digital data. Printing distortion is controlled by selecting a higher proportion of the polar points corresponding to a first radius is selected than of polar the points corresponding to a second radius.