Portable communications unit
First Claim
1. 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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Accused Products
Abstract
A system that includes a mobile communications unit, wherein an identification module is added between a radio part and an antenna in a mobile telephone that includes a Bluetooth function. The identification module includes a mixer for transposing identification messages from identification devices in a 2.45 GHz RFID system of the backscatter type, to a baseband for further processing in the computer part of the unit and optionally communication with a superordinate system by a standard call channel or a Bluetooth channel. The unit can also send information to identification devices for alerting and/or transmitting data. Modulation and encoding can be effected in accordance with the Bluetooth standard, thereby enabling the mixer to be included as an integral part of a standard Bluetooth radio.
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Citations
12 Claims
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1. 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.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
Specification