Patent · US Active

Area tracking systems and methods of tracking electronic devices

US8867996B2 · kind B2 · utility

0Cited by
3References
25Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 14, 2011
Grant dateOct 21, 2014
Priority date
Expiry dateAug 23, 2033

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04W4/20
  • WIPO fieldDigital communication
  • WIPO sectorElectrical engineering

Abstract

Area tracking systems including a plurality of short range sensors that are communicatively connected to a server and methods of tracking electronic devices. The electronic devices are tracked by polling for the electronic devices, the polling including transmission of electronic addresses corresponding to the electronic devices and determining whether a reply to the poling is received. The electronic addresses are each stored on one of a plurality of lists. Each of the lists may be polled at a different frequency and may include a different number of electronic device addresses.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.