David C Trowbridge

US Patent:

6786170, Sep 7, 2004

Filed:

Apr 16, 2003

Appl. No.:

10/417385

Inventors:

David L. Trowbridge - Mountain View CA 94040

International Classification:

B63B 3540

US Classification:

114259

Abstract:

In accordance with the present invention there is provided a lifting device for a boat, the lifting device including a first platform and a plurality of linkage members, the plurality of linkage members configured to form at least two four-bar linkage assemblies, each having a first end pivotally attached to the platform and a second end pivotally attached to a boat. The lifting device further including at least one hydraulic cylinder, the cylinder having a first end and second end, the first end being pivotally affixed to the structure of a boat and the second end pivotally attached to at least one linkage member, and a fluid device in communication with the hydraulic cylinder. A load sharing member connects the two four-bar linkage assemblies and prevents uneven or tilted motion of the platform.

US Patent:

20120110514, May 3, 2012

Filed:

Nov 1, 2010

Appl. No.:

12/917216

Inventors:

David Stephen TROWBRIDGE - Los Altos Hills CA, US

Assignee:

VMware, Inc. - Palo Alto CA

International Classification:

G06F 3/048

US Classification:

715853, 715764

Abstract:

A graphical user interface (GUI) for managing virtual machines (VMs) that are running in one or more hosts provides a search interface that is intuitive and presents search results in a tree structure that lists or marks items that meet user-designated search criteria. User-designated search criteria include favorite VMs, powered-on VMs, VMs running in a specified host, and text-based search criteria. Both VMs that are running locally in a local host and VMs that are running remotely in a remote host are listed so long as they meet the user-designated search criteria and thus can be managed using the GUI.

US Patent:

20130247006, Sep 19, 2013

Filed:

Mar 16, 2012

Appl. No.:

13/422083

Inventors:

David TROWBRIDGE - Los Altos Hills CA, US

Assignee:

VMWARE, INC. - Palo Alto CA

International Classification:

G06F 9/44

US Classification:

717126, 717124

Abstract:

A framework for developing and testing a software wizard formalizes, through constraint functions, relationships between different pages of the software wizard. A sequence of user interface (UI) pages of a software wizard is generated in accordance with this framework by carrying out the steps of displaying a first UI page that includes a first UI element for causing a transition to a next UI page of the software wizard, wherein the first UI page is associated with one or more constraint functions, detecting an input event that triggers the one or more constraint functions of the first UI page to produce an output that identifies the next UI page in the sequence of UI pages of the software wizard, and transitioning to the next UI page based on the output.

US Patent:

40558100, Oct 25, 1977

Filed:

Jul 26, 1976

Appl. No.:

5/708796

Inventors:

James C. Administrator of the National Aeronautics and Space Fletcher
David L. Trowbridge - Sunland CA

International Classification:

H01S 102

US Classification:

330 4

Abstract:

An X-band traveling wave maser of the folded-comb type is provided with two figure-eight coils for gain and bandwidth control. One figure-eight coil covers the full length of the comb structure for bandwidth adjustment of an external magnetic field. The other figure-eight coil covers a central half of the comb structure for independent gain adjustment of the external magnetic field. The half of each figure-eight coil at the turn around end of the comb structure is oriented to aid the external magnetic field, and the half of each figure-eight coil at the input-output end of the comb structure is oriented to buck the external magnetic field. The maser is pumped in the push-push mode with two different frequencies.

US Patent:

40841324, Apr 11, 1978

Filed:

Nov 24, 1976

Appl. No.:

5/744477

Inventors:

James C. Administrator of the National Aeronautics and Space Fletcher
David L. Trowbridge - Sunland CA

International Classification:

G01R 2700

US Classification:

324 57DE

Abstract:

A method and apparatus for recording directly group delay measurement of a system under temperature and stress tests employing a modulated carrier frequency swept over an S or X-band of interest and applied through a reference path and a test path to separate detectors for group delay measurement using a power divider, e. g. , a directional coupler or a hybrid-T junction. A phase comparator is initially balanced, and then the modulated carrier is swept in frequency over the band of interest for different conditions of temperature and/or mechanical stress to obtain a family of characteristic group-delay curves for the system under test.

US Patent:

20180129540, May 10, 2018

Filed:

Jan 10, 2018

Appl. No.:

15/866997

Inventors:

- Palo Alto CA, US
David Stephen Trowbridge - Los Altos Hills CA, US

International Classification:

G06F 9/50
G06F 9/48

Abstract:

Described are embodiments for management of virtual machines that are executed in one or more hosts. In one example, virtual machines are identified using a search criteria. A graphical user interface is generated with the virtual machines. Each of the plurality of virtual machines is listed in association with an indication of hardware utilized by the virtual machines. An input event is detected that specifies a selected virtual machine. The graphical user interface is updated to show and enable interaction with an operating system executed within the selected virtual machine.