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Portable communications unit

  • US 20040067734A1
  • Filed: 08/13/2002
  • Published: 04/08/2004
  • Est. Priority Date: 11/29/1999
  • Status: Active Grant
First Claim
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1. (amended) a portable communications unit for reading and/or writing of data from and into electronic identification devices with the aid of microwaves in the 2.45 GHz band, wherein the communications unit irradiates the identification device with microwaves, and wherein the identification device reflects information to the communications unit by modulation of the incident microwave signal and without supplying further energy to the communications unit, said communications unit comprising:

  • a mobile telephone that includes a radio unit that operates with 2.45 GHz bluetooth technology and that includes a bluetooth channel, a baseband mixer between the radio unit of the bluetooth channel and an antenna, wherein the communications unit receives identification messages from said identification device.

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