Patent · US Expired

Local communications device

US6754468B1 · kind B1 · utility

113Cited by
8References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 1999
Grant dateJun 22, 2004
Priority date
Expiry dateApr 30, 2019

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04M1/72412
  • WIPO fieldTelecommunications
  • WIPO sectorElectrical engineering

Abstract

A Portable communications device (1), particularly as an additional functional unit in a radiotelephone (100), comprising an input, output radio interface (2) for local data exchange between two adjacent communications devices (1; 100) or between a communications device (1; 100) and a data processing device (12) adapted to the,local data exchange, or a data-reproducing device (13), or an adapted data source (50). The range (r) of the input/output radio interface (2) is short compared with the range of a conventional radio interface for data :transfer, and corresponds essentially to a talking distance. The communications device (1, 100) further includes a memory device (6) and a data processing device (5). Different data sequences are identified and selectively retrievable in the memory device (6). The activation of the input/output radio interface (2) can be initiated manually.

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