Invention Grant
- Patent Title: Receiver circuit, in particular for a mobile radio
- Patent Title (中): 接收机电路,特别是用于移动无线电
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Application No.: US10384996Application Date: 2003-03-10
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Publication No.: US07336717B2Publication Date: 2008-02-26
- Inventor: Markus Hammes , Stefan Heinen , Stefan Van Waasen , Andre Hanke , Sönke Mehrgardt , Elmar Wagner
- Applicant: Markus Hammes , Stefan Heinen , Stefan Van Waasen , Andre Hanke , Sönke Mehrgardt , Elmar Wagner
- Applicant Address: DE Munich
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Munich
- Agent Laurence A. Greenberg; Werner H. Stemer; Ralph E. Locher
- Priority: DE10044449 20000908
- Main IPC: H04L5/12
- IPC: H04L5/12 ; H04L23/02

Abstract:
A radio receiver with a low intermediate frequency has a first mixer stage that can be fed with a modulated input signal and at whose output a complex intermediate frequency signal can be derived. Connected downstream of the first mixer stage is a limiting amplifier at whose output the intermediate frequency signal is present in a discrete-value and continuous-time fashion. A sampling device, for sampling the intermediate frequency signal, and a digital demodulator unit are connected to the output of this limiter. The demodulated input signal can be derived at the output of this digital demodulator unit. The present radio receiver requires a low chip area in conjunction with low power consumption, but offers a high sensitivity and accuracy based on the digitally implemented demodulation.
Public/Granted literature
- US20030156669A1 Receiver circuit, in particular for a mobile radio Public/Granted day:2003-08-21
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