| US 7,526,262 B2 | ||
| Converter circuit for a limiter receiver structure and method for converting a signal in a limiter receiver structure | ||
| Michael Speth, Krefeld (Germany); Britta Felbecker, München (Germany); and Markus Hammes, Dinslaken (Germany) | ||
| Assigned to Infineon Technologies AG, Munich (Germany) | ||
| Filed on Jul. 12, 2005, as Appl. No. 11/179,449. | ||
| Application 11/179449 is a continuation of application No. PCT/DE03/04278, filed on Dec. 23, 2003. | ||
| Claims priority of application No. 103 00 938 (DE), filed on Jan. 13, 2003. | ||
| Prior Publication US 2006/0046675 A1, Mar. 02, 2006 | ||
| Int. Cl. G06F 3/033 (2006.01) | ||
| U.S. Cl. 455—130 [455/205; 455/337] | 14 Claims |
| 1. A converter circuit for processing an analog reception signal for a limiter receiver structure, comprising:
a limiter configured to convert the analog reception signal into a time-continuous, value-discrete limiter signal characterized
by a sequence of rectangular pulses;
an evaluation circuit coupled to the limiter, wherein the evaluation circuit detects the temporal distances between two successive
zero crossings of the limiter signal and outputs a zero crossing distance signal in response to the detection of the temporal
distances; and
a signal synthesis circuit receiving the zero crossing distance signal and generating a value- and time-discrete processing
signal, wherein the zero crossings of the processing signal correspond to the zero crossings of the limiter signal and the
pulse shape used for the signal synthesis has a smaller spectral width than a rectangular pulse of corresponding width.
|