Circuit arrangement and method for increasing the functional range of a transponder
First Claim
1. A circuit arrangement for increasing a transmission or response range of a device which receives its operating energy from a source, said circuit arrangement comprising an input for receiving said operating energy for providing an operating voltage (VDD), a voltage converter (3) for converting said operating voltage (VDD) into a function voltage (VPP) for performing a function sequence, said circuit arrangement further comprising a voltage processing circuit (4) including a determination circuit section (4.7) connected to an output of said voltage converter (3), for determining at least one characteristic of said function voltage (VPP) to provide an output value (xVPP) representing said at least one characteristic, and a valuation circuit section (4.8) connected to said determination circuit section (4.7) for evaluating and thereby confirming or rejecting a result of said performing of said function sequence in response to said at least one characteristic of said function voltage (VPP).
18 Assignments
0 Petitions
Accused Products
Abstract
A transponder receives its operating energy from an external source such as a radio signal or a battery. Such transponders are used for example in a vehicle or in a remote sensor. The response range of the transponder is increased by converting the received energy into an operating voltage which in turn is used to generate a function voltage required for performing a current function sequence. The generated function voltage is checked to determine at least one characteristic of the generated function voltage. The determined function voltage characteristic, for example a voltage value directly representing the function voltage, is then used to acknowledge or reject a result of performing the function sequence. Thus, the time duration for performing any current function sequence is flexibly adapted to the current requirements of that function sequence, whereby the power consumption of the transponder is optimally reduced and the response range respectively increased.
35 Citations
25 Claims
- 1. A circuit arrangement for increasing a transmission or response range of a device which receives its operating energy from a source, said circuit arrangement comprising an input for receiving said operating energy for providing an operating voltage (VDD), a voltage converter (3) for converting said operating voltage (VDD) into a function voltage (VPP) for performing a function sequence, said circuit arrangement further comprising a voltage processing circuit (4) including a determination circuit section (4.7) connected to an output of said voltage converter (3), for determining at least one characteristic of said function voltage (VPP) to provide an output value (xVPP) representing said at least one characteristic, and a valuation circuit section (4.8) connected to said determination circuit section (4.7) for evaluating and thereby confirming or rejecting a result of said performing of said function sequence in response to said at least one characteristic of said function voltage (VPP).
-
17. A method for increasing a transmission range of a device which receives its operating energy from a source, said method comprising the following steps:
-
a) generating a function voltage out of said operating energy for enabling said device to perform a function sequence;
b) determining at least one characteristic value of said function voltage to provide a voltage characteristic value, and c) evaluating said voltage characteristic value for performing, in response to said voltage characteristic value, any one of a confirming step and a rejecting step regarding a performance of said function sequence. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
-
Specification