Daniel James Hamilton

US Patent:

8566286, Oct 22, 2013

Filed:

Feb 5, 2010

Appl. No.:

12/700799

Inventors:

Brett Derek Hawton - Alamo CA, US
Barry John Searle - Randburg, ZA
Daniel Aaron Hamilton - Pearland TX, US

Assignee:

Idera, Inc. - Houston TX

International Classification:

G06F 17/30

US Classification:

707654

Abstract:

A system and method for backing up a database, where the system has read threads running simultaneously, write threads, and data buffers. Each read thread repeats the following operations until all the data is backed up: read a block of data from the database, compress the data using a dynamic compression ratio which is initialized and adjusted after every compression, write the data to an available data buffer until the data buffer is full, write to the next available data buffer once the data buffer is full, and determine a new compression ratio. A controller determines the new compression ratio using either a method that monitors the timing of system components and/or a method that monitors CPU consumption.

US Patent:

20200030615, Jan 30, 2020

Filed:

Oct 8, 2019

Appl. No.:

16/595846

Inventors:

- San Francisco CA, US
Manfred Franke - Redwood City CA, US
Daniel N. Hamilton - Napa CA, US
Anand Doraiswamy - San Francisco CA, US
Douglas Michael Ackermann - San Francisco CA, US

International Classification:

A61N 1/378
A61N 1/375
A61N 1/36
B29D 11/00

Abstract:

Described here are devices, systems, and methods for increasing tear production by stimulating the cornea, conjunctiva, and/or subconjunctiva. In some variations, the devices may be in the form of a contact lens. The contact lens may comprise a lens body and a stimulator chip, where the stimulator chip is embedded in the lens body. An external power source wirelessly transmits energy to the stimulator chip, where the stimulator chip may convert the energy to an electric waveform to stimulate the cornea, conjunctiva, and/or subconjunctiva. Stimulation may activate the lacrimal reflex to increase tear production. The devices and systems for increasing tear production may be used in methods of treating dry eye, reducing the symptoms of tired eye, increasing comfort for contact lens wearers, and extending the number of years a contact lens user can wear contacts. Also described are methods of manufacturing a contact lens.

US Patent:

20160114172, Apr 28, 2016

Filed:

Oct 22, 2015

Appl. No.:

14/920847

Inventors:

- South San Francisco CA, US
Manfred FRANKE - Redwood City CA, US
Daniel N. HAMILTON - Napa CA, US
Anand DORAISWAMY - San Francisco CA, US
Douglas Michael ACKERMANN - San Francisco CA, US

International Classification:

A61N 1/378
A61N 1/36

Abstract:

Described here are devices, systems, and methods for increasing tear production by stimulating the cornea, conjunctiva, and/or subconjunctiva. In some variations, the devices may be in the form of a contact lens. The contact lens may comprise a lens body and a stimulator chip, where the stimulator chip is embedded in the lens body. An external power source wirelessly transmits energy to the stimulator chip, where the stimulator chip may convert the energy to an electric waveform to stimulate the cornea, conjunctiva, and/or subconjunctiva. Stimulation may activate the lacrimal reflex to increase tear production. The devices and systems for increasing tear production may be used in methods of treating dry eye, reducing the symptoms of tired eye, increasing comfort for contact lens wearers, and extending the number of years a contact lens user can wear contacts. Also described are methods of manufacturing a contact lens.