07978064 is referenced by 40 patents and cites 708 patents.

The system of the present invention includes a conductive element, an electronic component, and a partial power source in the form of dissimilar materials. Upon contact with a conducting fluid, a voltage potential is created and the power source is completed, which activates the system. The electronic component controls the conductance between the dissimilar materials to produce a unique current signature. The system can be used in a variety of different applications, including as components of ingestible identifiers, such as may be found in ingestible event markers, e.g., pharma-informatics enabled pharmaceutical compositions.

Title
Communication system with partial power source
Application Number
12/564017
Publication Number
7978064 (B2)
Application Date
September 21, 2009
Publication Date
July 12, 2011
Inventor
Hooman Hafezi
Redwood City
CA, US
Aleksandr Pikelny
Los Angeles
CA, US
Timothy Robertson
Belmont
CA, US
Mark Zdeblick
Portola Valley
CA, US
Agent
Bret E Field
Bozicevic Field & Francis
Assignee
Proteus Biomedical
CA, US
IPC
G08B 1/08
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