Method and device for theft protection of electronic apparatus connected to a bus system
First Claim
1. A method of theft protection of electronic apparatuses connected to a bus system, said method comprising the steps of:
- triggering a signal when an apparatus is separated from the bus system, wherein the separation is recognized by the separated apparatus and/or by at least another apparatus in the bus system, comparing the current configuration of the bus system after recognition of the separation and the configuration of that bus system to which the separated apparatus is reconnected after its separation with the previous configuration of the bus system prior to the separation, and triggering a theft reaction when a significant difference is found between said configurations.
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Accused Products
Abstract
Theft protection of electronic apparatuses connected to a bus system is implemented in a manner particularly suitable for use in a digital home network based on the IEEE 1394 standard. At least one of the apparatuses in the network is equipped with a monitoring unit switchable between an activated and a de-activated state. In the activated state, the monitoring unit monitors the occurrence of a bus reset which is generated particularly upon removal of an apparatus from the network. After occurrence of such a reset, the monitoring unit compares the list of all apparatuses on the bus with a list generated and stored before the reset. When determining differences, an alarm is triggered which can be reproduced particularly by means of the apparatuses which are present, such as, for example, televisions and hi-fi equipment.
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Citations
10 Claims
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1. A method of theft protection of electronic apparatuses connected to a bus system, said method comprising the steps of:
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triggering a signal when an apparatus is separated from the bus system, wherein the separation is recognized by the separated apparatus and/or by at least another apparatus in the bus system, comparing the current configuration of the bus system after recognition of the separation and the configuration of that bus system to which the separated apparatus is reconnected after its separation with the previous configuration of the bus system prior to the separation, and triggering a theft reaction when a significant difference is found between said configurations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for theft protection of electronic apparatuses connected to a bus system, comprising:
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a monitoring unit coupled to the bus, the monitoring unit is connected to art alarm device and/or an apparatus control the monitoring unit comprising;
means for triggering a signal when an apparatus is separated from the bus system, wherein the separation is recognized by the separated apparatus and/or by at least another apparatus in the bus system, means for comparing the current configuration of the bus system after recognition of the separation and the configuration of that bus system to which the separated apparatus is reconnected after its separation with the previous configuration of the bus system prior to the separation, and means for triggering a theft reaction when a significant difference is found between said configurations.
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Specification