Abstract: A portable device includes an active device (communication station) configuration for contactless communication with at least one external data carrier and a passive device (data carrier) configuration for contactless communication with at least one external communication station. A detection circuit is provided to detect the presence of an external data carrier and/or the presence of an external communication station in a communication zone of the internal active device configuration and/or the internal passive device configuration. An activation circuit is coupled to the detection circuit to enable one of the two configurations based on the detection result.

Abstract: A portable device (1) includes a communication station configuration (10) for contactless communication with at least one external data carrier (13) and a data carrier configuration (11) for contactless communication with at least one external communication station (14), wherein a detection circuit (32) is provided which is designed to detect the presence of an external data carrier (13) and the presence of an external communication station (14) in a communication zone of the internal communication station configuration (10) and the internal data carrier configuration (11) designed for contactless communication, and wherein an activation circuit (33) cooperating with the detection circuit (32) is provided, by means of which activation circuit (33) one of the two configurations (10, 11) can be activated as a function of the detection result (INFO1, INFO2, INFO3) supplied in each case by the detection circuit (32).

Abstract: When activating a desired communication mode of an ID communication partner device (2) from a group of possible communication modes, which group comprises at least a TTF mode and an RTF mode, the ID communication partner device (2) and at least one other ID communication partner device (4) are brought into a communication connection, wherein a carrier signal (CS) is output by the at least one other ID communication partner device (4), which carrier signal (CS) is received by the ID communication partner device (2), and wherein the carrier signal (CS) is repeatedly designated by at least one mode activation signal (AS) by means of the at least one other ID communication partner device (4), and wherein the presence of the mode activation signal (AS) is recognized by the ID communication partner device (2), TS giving a recognition result signal (RRS), and wherein, as a function of the recognition result signal (RRS), the desired communication mode of the ID communication partner device (2) is activated.

Abstract: In a communication partner device (2A) which belongs to a communication system (1) having at least two such communication partner devices (2A, 2B) and which is designed for contactless communication over a first communication channel (4), wherein one of the two communication partner devices (2A, 2B) contains a communication enable information item (CEIA, CEIB) which is used to enable communication between the one communication partner device (2A) and the other communication partner device (2B) over the first communication channel (4), a communication stage (5A) is provided which is designed for contactless communication with a communication stage (5B) of the other communication partner device (2B) over a second communication channel (7) and which, in the event of communication over the second communication channel (7), is designed to make available the communication enable information item (CEIA, CEIB), necessary for communication over the first communication channel (4), in the communication partner device (

Abstract: A portable device (1) comprises a communication station configuration (10) for contactless communication with at least one external data carrier (13) and a data carrier configuration (11) for contactless communication with at least one external communication station (14), wherein a detection circuit (32) is provided which is designed to detect the presence of an external data carrier (13) and the presence of an external communication station (14) in a communication zone of the internal communication station configuration (10) and the internal data carrier configuration (11) designed for contactless communication, and wherein an activation circuit (33) cooperating with the detection circuit (32) is provided, by means of which activation circuit (33) one of the two configurations (10, 11) can be activated as a function of the detection result (INFO1, INFO2, INFO3) supplied in each case by the detection circuit (32).

Abstract: In a method of releasing communication between at least two communication devices (4, 5, 6, 7, 8), a data carrier (36), that is able to be read from in a non-contacting manner and that contains an authorization code (AUC), is brought into the vicinity of communication devices (4, 5, 8) that are to be released, and the authorization code (AUC) is read out in a non-contacting manner by a reading device (21, 22, 25) contained in the relevant communication device (4, 5, 8) and is fed by the reading device (21, 22, 25) to a releasing device (40, 41, 44) that, after analyzing the authorization code (AUC), is responsible for releasing communication between the communication devices (4, 5, 8) to be released.

Abstract: A communication station (1) is suitable for contactless communication with transponders and with other communication stations and comprises a first signal-processing circuit (28) and a second signal-processing circuit (29), the first signal-processing circuit (28) being designed for processing signals using at least one transmission parameter in a communication between the communication station (1) and at least one transponder, and the second signal-processing circuit (29) being designed for processing other signals using at least one other transmission parameter in a communication between the communication station (1) and at least one other communication station, and the transmission parameters used in the two signal-processing circuits (28, 29) differing from each other.

Abstract: A communication station (1) is suitable for contactless communication with transponders and with further communication stations and has a first protocol-executing circuit (12) and a second protocol-executing circuit (13), the first protocol-executing circuit (12) being designed to effect communication between the communication station (1) and transponders under a station/transponder protocol and the second protocol-executing circuit (13) being designed to effect communication between the communication station (1) and further communication stations under a station/station protocol.

Abstract: In order to provide a method for locating moving objects that will allow high precision in position determination and thus largely eliminate sorting errors, and also to provide a device suitable for executing the method, it is envisaged that on at least one defined location within the reading range of an interrogator (16) arranged in a stationary position, an interference pulse, which influences a response signal transmitted by a transponder (20) carried by a moving object (12) in response to a signal transmitted by the interrogator (16), is exerted on the object (12), and a position of the object (12) is determined in dependence on a time when the influence of the response signal occurred.

Abstract: In order to provide a method for locating moving objects that will allow high precision in position determination and thus largely eliminate sorting errors, and also to provide a device suitable for executing the method, it is envisaged that on at least one defined location within the reading range of an interrogator (16) arranged in a stationary position, an interference pulse, which influences a response signal transmitted by a transponder (20) carried by a moving object (12) in response to a signal transmitted by the interrogator (16), is exerted on the object (12), and a position of the object (12) is determined in dependence on a time when the influence of the response signal occurred.