Siemens Aktiengesellschaft

Siemens Ag Austria

Peter-Ernst Veith

Martin Schiefer

Janos Gila

Wolfgang Konrad

Karl Asperger

Olaf Albert

Nikolaus Dellantoni

Gunther Hraby

A method and system for transferring data between at least one read/write device (RWD) and at least one mobile data memory (MDM). The mobile data memory (MDM) is preferably attached to an object for recording object-related status and/or process data, e.g. in a dispatch, transport and/or manufacturing system for the individual objects. According to the method, a difference in transfer time between the received data signals of a mobile data memory (MDM) and transmitted data signals of the read/write device (RWD) is determined in the read/write device (RWD) and the received data signals of the mobile data memory (MDM) are processed further in said read/write device (RWD) only if the difference in transfer time which has been determined lies within a predefined transfer time limit.

Method and system for data communication between a read/write device and a mobile memory device based on transfer-time measurement

A method and circuit for transmitting a data-modulated high-frequency data signal ffrom a transmitter to a receiver, for transmitting data between a read-write device (RWD) and at least one mobile data memory (MDM) in an identification system that has a number of mobile data memories (MDM) which are placed on objects and which are provided for detecting object-specific status data and/or process data. Such an identification system is particularly useful, e.g., in a shipping, transport and/or manufacturing system of the individual objects. In addition to the transmitted high frequency data signal f, a further high-frequency data signal fis transmitted, which serves to convert the frequency and/or to modulate the carrier code of the high-frequency data signal f.

Method and circuit for transmitting a data-modulated high-frequency data signal from a transmitter to a receiver having a simplified receiver architecture

An antenna includes antenna elements for transmitting and receiving signals. The antenna elements have a helical shape and are disposed parallel to one another. The antenna elements are individually connected in parallel to a common conductor surface and are capacitively coupled to a radio-frequency counterpoise via the common conductor surface.

Antenna having a wide bandwidth

A data medium for identifying objects, in particular gas cylinders, includes a data source and an energy source. Each data medium contains at least one RF signal reflector having a characteristic frequency which can be controlled by the data source. The waveform of the characteristic frequency containing the individual identification of the data medium is in coded form. A scanning device for interrogation of the data medium and a process for controlling the data medium are also provided.

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Vienna, Austria

Peter-Ernst Veith