BIDIRECTIONAL TRANSPONDER WITH LOW ENERGY USE
The invention relates to a transponder (4.1) which has at least one wake-up unit and at least one data exchange unit for a bidirectional data communication with at least one reading device (4.5), in particular for detecting and/or controlling access authorization to rooms or objects, wherein the rea...
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Main Author | |
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Format | Patent |
Language | English |
Published |
21.03.2019
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a transponder (4.1) which has at least one wake-up unit and at least one data exchange unit for a bidirectional data communication with at least one reading device (4.5), in particular for detecting and/or controlling access authorization to rooms or objects, wherein the reading device automatically transmits signals at least during particular time periods. Because the wake-up unit is permanently ready to receive signals (4.11) for starting data communication between the transponder and the reading device, a device is provided in which a transponder can react to requests of a reading unit without a substantial loss of time in a permanent manner, i.e. not just in short time interval specified by the transponder, and thereby achieves a long service life. |
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Bibliography: | Application Number: US201716080349 |