Telecommunications – Radiotelephone system – Emergency or alarm communication
Reexamination Certificate
2008-12-28
2009-12-29
Yun, Eugene (Department: 2618)
Telecommunications
Radiotelephone system
Emergency or alarm communication
C455S404200, C455S521000, C455S414100, C455S127100
Reexamination Certificate
active
07640003
ABSTRACT:
A mobile computing and communication device for an emergency occasion is disclosed. The device, for example, is useful for a trapped person under a mound of debris created by a fallen building during an earthquake or a terrorist attack. The invention is based upon a conventional mobile communication device with an additional communication unit. The additional unit is based upon a short-range and ad hoc communication network. The invention is characterized by that a power management unit is used to monitor the remaining power of a battery system for the mobile device. If the power is below a preset threshold value, the main function of the mobile device as a mobile phone is switched off and the reserved power is used to supply energy for the second communication unit, which typically consumes much less power and lasts for very long time. An authorized signal delivered by a nearby mobile rescue station will switch on the mobile device to provide the information with regard to trapped person's identity, location and status. A sensory unit such as an accelerometer and/or a gyroscope may detect a signal if the person touches and/or moves the device after receiving a triggering signal.
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Pan Yang
Yun Eugene
LandOfFree
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