TRANSPONDERS AND METHODS FOR OPERATING A TRANSPONDER
First Claim
Patent Images
1. A method for operating a transponder, comprising:
- receiving a signal from a transmitter with a transponder having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity;
said signal comprising an information about a reference sensitivity; and
adjusting said input sensitivity to said reference sensitivity.
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Accused Products
Abstract
In a method for operating a transponder (1, 41), the transponder (1, 4) receives a signal from a transmitter (2, 42). The signal comprises an information about a reference sensitivity and the transponder (1, 41) has an input sensitivity such that the transponder (1, 41) detects only signals above a certain power corresponding to the input sensitivity. In response to the received signal, the input sensitivity of the transponder (1, 41) is adjusted to the reference sensitivity.
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Citations
10 Claims
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1. A method for operating a transponder, comprising:
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receiving a signal from a transmitter with a transponder having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity;
said signal comprising an information about a reference sensitivity; andadjusting said input sensitivity to said reference sensitivity. - View Dependent Claims (2, 3)
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4. A method for operating a transponder, comprising:
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receiving a signal from a transmitter with a transponder having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity;
said signal comprising an information about a distance within which said transponder shall be able to detect signals sent by said transmitter; andadjusting said input sensitivity of said transponder so that said transponder detects only signals sent by said transmitter, if said transponder is within said distance to said transmitter. - View Dependent Claims (5)
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6. A transponder comprising a receiver to receive signals sent by a transmitter;
- said receiver having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity and said transponder being configured to adjust said input sensitivity to a reference sensitivity in response to a received signal sent by said transmitter;
said received signal comprising an information about said reference sensitivity. - View Dependent Claims (7, 8)
- said receiver having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity and said transponder being configured to adjust said input sensitivity to a reference sensitivity in response to a received signal sent by said transmitter;
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9. A transponder comprising a receiver to receive signals sent by a transmitter;
- said receiver having an input sensitivity such that said transponder detects only signals above a certain power corresponding to said input sensitivity and said transponder being configured to adjust said input sensitivity in response to a received signal sent by said transmitter and comprising an information about a distance so that said transponder detects only signals sent by said transmitter, if said transponder is within said distance to said transmitter.
- View Dependent Claims (10)
Specification