Patent · US Expired

System and apparatus for performing broadcast and localcast communications

US7577457B2 · kind B2 · utility

9Cited by
67References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 13, 2003
Grant dateAug 18, 2009
Priority date
Expiry dateJan 30, 2024

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02D30/70
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

Described is a communication system including mobile communication devices. In the described system, the mobile devices may be wrist-worn watches such as are in common use today, except that the watches are specially configured to receive data in a “broadcast” mode and transmit and/or receive data in a “localcast” mode. The localcast mode includes the ability to transmit and receive data in a peer-to-peer fashion, allowing mobile devices to communicate directly with each other. The ability to combine two of these communication modes in a small, integrated and hence inexpensive and low-power package provides many advantages over existing personal communication device solutions.

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