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Device and method for operating a read/write device

A technology for writers and devices, applied in the field of communications, which can solve problems such as electrical failures, insufficient charge states, etc.

Inactive Publication Date: 2009-09-02
LEGIC IDENTSYSTEMS AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] On the contrary, the following fact is not taken into account: not only the supply unit of the instrument can have a low or insufficient state of charge - in short, can have a state of charge: battery flat - but also there can be electrical charges in the supply unit. (electrical) failure

Method used

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  • Device and method for operating a read/write device
  • Device and method for operating a read/write device
  • Device and method for operating a read/write device

Examples

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Embodiment Construction

[0024] Figure 1 shows a block diagram of an inventive device for operating a reader / writer 1 comprising a read / write unit 17, an antenna 18, a reader / writer supply 3 , the connection 18 between the read / write unit 17 and the read / write supply 3, and the switching device 9 with the "open" switch position 11 and the "closed" position 12. The switching device 9 is interposed between the read / write unit 17 and the read / writer supply 3 . The antenna 2 is connected to the read / write unit 17 .

[0025] In addition, an identification medium 5 and an external power source 6 are shown. The identification medium 5 has a possibly contactless communication link 4 with the reader / writer 1 , said link operating at a communication frequency f1 , 13 . The external power supply 6 exhibits a contactless interconnection 7 with a supply frequency f2, 14 .

[0026] Fig. 2 shows a block diagram of an optional device for operating the reader / writer 1 according to the invention. This variant diffe...

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PUM

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Abstract

The invention relates to a device for operating a read / write device (1), comprising an antenna (2) and a read / write unit (17) for communication with an identification medium (5) via a communications connection (4). The invention is characterized in that a disconnectible connection (18) is arranged between the read / write device supply (3) and the read / write device (1). The connection (18) between the read / write device supply (3) and the read / write device (1) is open in the event of a contactless active connection (7) between an external supply (6) and the read / write device (1) and the read / write device (1) can be operated with the identification medium (5).

Description

technical field [0001] The invention relates to the field of communications; to a device for operating a reader / writer comprising an antenna and a read / write unit for communicating with an identification medium via a communication link. The invention also relates to a method for operating the device. Background technique [0002] WO2004 / 105157A2 discloses a method and a device for contactless powering of an energy storage device by means of radio frequency (RF). The device consists of three units: a base station, a receiving station with an antenna and an energy storage instrument, which is connected to the base station. According to the method disclosed herein, the receiving station is contactlessly powered by the base station, the RF power received via the antenna is converted to a DC voltage and charges the energy storage instrument. [0003] WO 2006 / 007418 A1 describes a first device with a first antenna and a first supply and a second device with a second antenna and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K7/00G07C9/00H04B5/48
CPCG06K7/0008G06K19/00H04B5/48
Inventor 彼特·豪斯曼马塞·普拉斯彼特·普拉斯
Owner LEGIC IDENTSYSTEMS AG