Christopher D Butler

7738152, Jun 15, 2010

Dec 6, 2005

11/295732

Christopher J. Butler - Arlington MA, US
David A. Waldman - Concord MA, US

STX Aprilis, Inc. - Maynard MA

G03H 1/00
G03H 1/22
G03H 1/16

359 30, 359 32, 359 29

An apparatus for recording or reading high areal density holographically stored information with high signal-to-noise ratio. The apparatus comprises a holographic imaging system for recording or reconstructing a holographic image, having a first numerical aperture and a first focal length and an additional optical system for filtering the signal beam, having a second numerical aperture and a second focal length, wherein the numerical aperture of the additional optical system is less than the numerical aperture of the holographic imaging system and/or the focal length of the additional optical system is greater than the optical length of the holographic imaging system.

7742378, Jun 22, 2010

Jan 20, 2004

10/761142

David A. Waldman - Concord MA, US
Christopher J. Butler - Arlington MA, US
Daniel H. Raguin - Acton MA, US

STX Aprilis, Inc. - Maynard MA

G11B 7/00

369103, 36911229

A method and an apparatus for recording at least two multiplexed holograms. Either an object beam or a reference beam is reflected from an aspherical reflecting surface. Either the reference beam impinging on a recording media at the selected storage location or the object beam impinging on the recording media at the selected storage location is rotated through a selected azimuthal angle about an axis that passes through a plane defined by the intersection of the object beam and the reference beam in the recording media, wherein an angle between the object beam and the reference beam impinging on the recording media is preserved.

20050081235, Apr 14, 2005

Oct 14, 2004

10/965570

Daniel Raguin - Acton MA, US
David Kent - Framingham MA, US
Christopher Butler - Arlington MA, US
David Kindler - Concord MA, US

G11B023/03

720741000, 720736000

A data storage system is provided which utilizes cartridges having data storage media. The system has a housing having an optical data storage system, such as a holographic data storage system. Each cartridge has a window through which the media may be partially or fully removed when located in the housing, a slot through which the data storage drive can engage the media upon a positioning mechanism, and a shutter mechanism which closes the window and slot. When the cartridge is inserted in the housing, its shutter mechanism is engaged to open the window and slot of the cartridge, and the media is coupled through the slot to the positioning mechanism, which partially or fully removes the media from the cartridge through the window for presentation to the optical data storage system. Once operation on the media is completed by the optical data storage system, the positioning mechanism moves the media back into the cartridge and is decoupled from the media. The shutter mechanism is engaged to close the window and slot prior to ejecting the cartridge from the housing. When media is sensitive to external light, the cartridges prevent external light from reaching media contained therein when the window and slot are closed.

20080008076, Jan 10, 2008

Apr 15, 2005

11/578709

Daniel Raguin - Acton MA, US
Christopher Butler - Medford MA, US

G11B 7/00

369103000, 359012000, 359035000

Calibration of holographic data storage systems (HDSS) is provided by utilizing holographic media () having calibration features which can be read, written, or read and written by a HDSS (). Calibration features may represent for example, surface-relief gratings, holographic recordings, amplitude varying regions, or magnetic regions, or a combination thereof, at locations on or within the media. One or more of the calibration features along media region () are media calibration features with media and format information, and other calibration features along region () are system calibration features for optically and mechanically aligning HDSS optics. The media () may have performance calibration features along region () which can be recorded by a HDSS and then read back to determine characteristics of the media. Different HDSS systems can read the calibration features of the media () when installed in each HDSS to obtain information about the media, and to optically and mechanically align the media for optimal operation with the media.

20080037397, Feb 14, 2008

Dec 10, 2004

10/582264

David A. Waldman - Concord MA, US
Christopher J. Butler - Arlington MA, US
Daniel H. Raguin - Acton MA, US

DCE APRILIS, INC. - Maynard MA

G11B 7/00

369103

Holographic data storage systems are fixed after exposure during which data in the form of holograms are stored at locations in the medium (). Sufficient fixing energy in the form of light or other electromagnetic and thermal radiation is applied to the media () either by flooding the media, or to specific locations where the medium has been written. The energy is sufficient to expose the recorded medium () to prevent recording in the unused dynamic range thereof. Such recording can be a spurious recording made during readout or from spurious sources of light incident on the media. In one embodiment, the reference beam () produced in the course of holographic recording is redirected to locations on the media () which have already been recorded. The redirected beam post exposes the media to fix these locations against spurious recording. The integrity of the holographic data storage systems and the robustness thereof is improved by fixing methods and apparatus incorporating the invention.

20080256567, Oct 16, 2008

Apr 11, 2008

12/101567

Christopher Butler - Wayland MA, US

H04N 7/173

725 2

The present invention relates to providing packaged programming for use on electronic media players. In particular the present invention relates to providing entertainment programming packaged together with advertising, in downloadable form, for use on electronic media players. The service may be supported by subscription fees, by advertising fees, are a combination thereof. The service provider, in turn, uses a portion of the moneys generated for operating expenses and profit, as well as to pay pre-negotiated royalty fees to the copyright owners of the aforementioned programming.

20100014138, Jan 21, 2010

Sep 28, 2009

12/568214

Christopher J. Butler - Arlington MA, US
David A. Waldman - Concord MA, US

STX Aprilis, Inc. - Maynard MA

G03H 1/26
G03H 1/22
G03H 1/02

359 22, 359 32, 359 30

An apparatus for recording or reading high areal density holographically stored information with high signal-to-noise ratio. The apparatus comprises a holographic imaging system for recording or reconstructing a holographic image, having a first numerical aperture and a first focal length and an additional optical system for filtering the signal beam, having a second numerical aperture and a second focal length, wherein the numerical aperture of the additional optical system is less than the numerical aperture of the holographic imaging system and/or the focal length of the additional optical system is greater than the optical length of the holographic imaging system.

20130053373, Feb 28, 2013

Aug 28, 2012

13/596208

Michael Aaron BRODNEY - Newton MA, US
Christopher Ryan BUTLER - Canton MA, US
Christopher John HELAL - Mystic CT, US
Brian Thomas O'NEILL - Haddam CT, US

C07D 513/04
A61P 25/28
A61K 31/542

5142242, 544 48

Compounds and pharmaceutically acceptable salts of the compounds are disclosed, wherein the compounds have the structure of Formula I,as defined in the specification. Corresponding pharmaceutical compositions, methods of treatment, methods of synthesis, and intermediates are also disclosed.