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Patent Searching and Data


Title:
DATA GATHERING SYSTEM
Document Type and Number:
WIPO Patent Application WO/2011/094606
Kind Code:
A3
Abstract:
A device for gathering data has first and second electrodes. The first electrode is coupled to a surface of interest, and the second electrode is coupled to "everything else" or "the air". The first electrode is shielded from the second, and from most sources of parasitic capacitance, by a shield that is driven by an active driver that drives the shield to track, and ideally to match, the instantaneous potential of the electrode. The second electrode is likewise shielded in a similar way from most sources of parasitic capacitance. These shields likewise help to limit the extent to which RFI from the device electronics couples with either of the electrodes. In this way the sensing device achieves a markedly better signal-to-noise ratio at frequency bands of interest.

Inventors:
ZDEBLICK, Mark (300 La Mesa Drive, Portola Valley, California, 94028, US)
HUTCHISON, James (4384 Silva Court, Palo Alto, California, 94306, US)
ARNE, Lawrence (250 Iris Way, Palo Alto, California, 94303, US)
Application Number:
US2011/023013
Publication Date:
October 20, 2011
Filing Date:
January 28, 2011
Export Citation:
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Assignee:
PROTEUS BIOMEDICAL, INC. (2600 Bridge Parkway, Suite 101Redwood City, California, 94065, US)
ZDEBLICK, Mark (300 La Mesa Drive, Portola Valley, California, 94028, US)
HUTCHISON, James (4384 Silva Court, Palo Alto, California, 94306, US)
ARNE, Lawrence (250 Iris Way, Palo Alto, California, 94303, US)
International Classes:
A61B5/04; A61B5/0408; G06F19/00; H04B13/00
Domestic Patent References:
WO2008152588A22008-12-18
Foreign References:
US20040254435A12004-12-16
JP2008525063A2008-07-17
JP2001061799A2001-03-13
Other References:
See also references of EP 2531099A4
Attorney, Agent or Firm:
FIELD, Bret (Bozicevic Field & Francis LLP, 1900 University Avenue Suite 20, East Palo Alto California, 94303, US)
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