David C Hart

US Patent:

6801767, Oct 5, 2004

Filed:

Jan 26, 2001

Appl. No.:

09/771320

Inventors:

Adam L. Schwartz - Campbell CA
David Hart - Sunnyvale CA
John Eisenberg - Los Altos CA
Peter Forth - San Jose CA

Assignee:

LGC Wireless, Inc. - San Jose CA

International Classification:

H04Q 720

US Classification:

4554262, 398115, 455131

Abstract:

This invention provides a method and system for distributing multiband wireless communications signals. Downlink RF signals in a plurality of downlink frequency bands are received and then combined into a combined downlink RF signal at the main unit. The combined downlink RF signal is subsequently split into multiple downlink RF-parts, which are converted to multiple downlink optical signals and optically transmitted to the remote units. At each remote unit, a delivered downlink optical signal is first converted back to a downlink RF-part which is subsequently separated into a plurality of downlink RF-groups by frequency band. Each downlink RF-group is individually conditioned (e. g. , filtered and amplified). The individual-conditioned downlink RF-groups are then combined and transmitted to a dedicated downlink antenna.

US Patent:

7348973, Mar 25, 2008

Filed:

May 17, 2004

Appl. No.:

10/848241

Inventors:

Jonathan D. Gibbs - San Carlos CA, US
David A. Hart - San Francisco CA, US

Assignee:

Pacific Data Images LLC - Redwood City CA

International Classification:

G06T 15/00

US Classification:

345419

Abstract:

The present invention models hairs by generating hairs by interpolation and then further modifying the interpolated hairs to form clumps. The modified hairs can be iteratively reprocessed to generate more hairs and thereby produce a greater level of detail in the resulting hairstyle. The invention can be used to model any tubular structures protruding from a surface, such as strands of fur protruding from an animal's skin and blades of grass or stems of plants protruding from the ground.

US Patent:

7609261, Oct 27, 2009

Filed:

Mar 25, 2008

Appl. No.:

12/055279

Inventors:

Jonathan D. Gibbs - San Carlos CA, US
David A. Hart - San Francisco CA, US

Assignee:

Pacific Data Images LLC - Redwood City CA

International Classification:

G06T 15/00

US Classification:

345419, 345473, 345474

Abstract:

The present invention models hairs by generating hairs by interpolation and then further modifying the interpolated hairs to form clumps. The modified hairs can be iteratively reprocessed to generate more hairs and thereby produce a greater level of detail in the resulting hairstyle. The invention can be used to model any tubular structures protruding from a surface, such as strands of fur protruding from an animal's skin and blades of grass or stems of plants protruding from the ground.

US Patent:

7853566, Dec 14, 2010

Filed:

Aug 4, 2006

Appl. No.:

11/499879

Inventors:

Pavel Cisler - Los Gatos CA, US
Gene Zyrl Ragan - Santa Clara CA, US
Mike Matas - Palo Alto CA, US
Gregory N. Christie - San Jose CA, US
Kevin Tiene - Cupertino CA, US
David Hart - San Francisco CA, US
Loic Vandereyken - Palo Alto CA, US
Robert M Chinn - Redwood City CA, US
Marcel M W A van Os - San Francisco CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G06F 17/30

US Classification:

707654, 715229

Abstract:

Systems and methods for navigating within snapshots are provided. In one implementation a method is provided. The method includes receiving, while a current view is displayed in a user interface, a first user input requesting that a history view associated with the current view be displayed. The history view is displayed in response to the first user input, the history view including at least a first visual representation of an earlier version of the current view, the earlier version including a hierarchical structure wherein a first element of the earlier version includes a second element. There is received, while the history view is displayed, a second user input requesting that the current view be modified according to the second element. The method includes modifying, in response to the second user input, the current view according to the second element.

US Patent:

8010900, Aug 30, 2011

Filed:

Jun 8, 2007

Appl. No.:

11/760708

Inventors:

David Hart - San Francisco CA, US
Mike Matas - Palo Alto CA, US
Pavel Cisler - Los Gatos CA, US
Kevin Tiene - Cupertino CA, US

Assignee:

Apple Inc. - Cupertino CA

International Classification:

G06F 3/00

US Classification:

715747, 715769, 715770, 715778

Abstract:

Systems and methods are provided for storing and restoring digital data. A method includes receiving, a first user input requesting that a backup interface be displayed, displaying the backup interface, the backup interface including a display area for presenting at least a first visual representation of an earlier version of a current view and a visual representation of the current view, the earlier version including a first element, receiving, while the backup interface is displayed, a second user input requesting that the current view be modified according to the earlier version, at least with regard to the first element, animating the modification of the first element as moving from the visual representation of the earlier version to the visual representation of the current view, and modifying, in response to the second user input, the current view according to the earlier version, at least with regard to the first element.

US Patent:

8428510, Apr 23, 2013

Filed:

Mar 25, 2010

Appl. No.:

12/731740

Inventors:

Scott Stratford - Campbell CA, US
David Hart - Sunnyvale CA, US
David Hansen - Sunnyvale CA, US

Assignee:

ADC Telecommunications, Inc. - Shakopee MN

International Classification:

H04B 3/36
H04B 7/14

US Classification:

455 7

Abstract:

One embodiment is directed to a distributed antenna system in which a setting for automatic gain control functionality in at least one unit included in the system (for example, in a hub unit or a remote unit) is determined by interpolating between two detected levels measured at that unit while the automatic gain control functionality is operating in two respective predetermined configurations and by interpolating between two target levels that are associated with the two respective predetermined configurations. In one example, the intersection of the two resulting interpolations is used to determine the setting for the automatic gain control functionality.

US Patent:

8462683, Jun 11, 2013

Filed:

Jan 12, 2011

Appl. No.:

13/004998

Inventors:

Lance K. Uyehara - San Jose CA, US
David Hart - Sunnyvale CA, US
Dean Zavadsky - Shakopee MN, US
Larry G. Fischer - Waseca MN, US

Assignee:

ADC Telecommunications, Inc. - Shakopee MN

International Classification:

H04B 7/00

US Classification:

370310, 370345, 370252, 370464

Abstract:

A hybrid expansion unit includes at least one digital communication interface adapted to communicate first and second sets of N-bit words of digitized spectrum with an upstream device. The hybrid expansion unit further includes at least one analog communication interface adapted to communicate first and second sets of bands of analog spectrum with a downstream device. The hybrid expansion unit is adapted to convert between the first set of N-bit words of digitized spectrum and the first set of bands of analog spectrum. The hybrid expansion unit is further adapted to convert between the second set of N-bit words of digitized spectrum and the second set of bands of analog spectrum. The first set of bands of analog spectrum occupy a first frequency range and the second set of bands of analog spectrum occupy a second frequency range. The first frequency range and the second frequency range do not overlap.

US Patent:

8472579, Jun 25, 2013

Filed:

Jul 28, 2010

Appl. No.:

12/845060

Inventors:

Lance K. Uyehara - San Jose CA, US
Larry G. Fischer - Waseca MN, US
David Hart - Sunnyvale CA, US
Dean Zavadsky - Shakopee MN, US

Assignee:

ADC Telecommunications, Inc. - Shakopee MN

International Classification:

H04L 7/00

US Classification:

375356, 375376

Abstract:

A communication system includes master host unit, hybrid expansion unit, and remote antenna unit. Master host unit communicates analog signals with service provider interfaces. Master host unit and hybrid expansion unit communicate N-bit words of digitized spectrum over communication link. Hybrid expansion unit converts between N-bit words and analog spectrum. Hybrid expansion unit and remote antenna unit communicate analog spectrum over analog communication medium. Remote antenna unit transmits and receives wireless signals over air interfaces. Master host unit includes master clock distribution unit that generates digital master reference clock signal. Master host unit communicates digital master reference clock signal over communication link. Hybrid expansion unit receives digital master reference clock signal from master host unit over communication link and generates analog reference clock signal based on digital master reference clock signal. Hybrid expansion unit sends, and remote antenna unit receives, analog reference clock signal across analog communication medium.