Invention Grant
US07684763B2 Transceiver circuit and method for providing local oscillator signals in a transceiver circuit
有权
收发器电路和用于在收发器电路中提供本地振荡器信号的方法
- Patent Title: Transceiver circuit and method for providing local oscillator signals in a transceiver circuit
- Patent Title (中): 收发器电路和用于在收发器电路中提供本地振荡器信号的方法
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Application No.: US11101946Application Date: 2005-04-08
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Publication No.: US07684763B2Publication Date: 2010-03-23
- Inventor: Zdravko Boos
- Applicant: Zdravko Boos
- Applicant Address: DE Munich
- Assignee: Infineon Technologies AG
- Current Assignee: Infineon Technologies AG
- Current Assignee Address: DE Munich
- Agency: Eschweiler & Associates, LLC
- Priority: DE102004017527 20040408
- Main IPC: H04B1/38
- IPC: H04B1/38

Abstract:
A transceiver circuit includes a transmission path and also at least two reception paths, which in each case contain a frequency conversion device with a local oscillator input. A first, a second and a third oscillator circuit, and also a programmable frequency divider circuit are furthermore provided. The outputs of the oscillator circuits are connected to a respective input of the programmable frequency divider circuit. The frequency divider circuit contains three outputs connected in each case to a local oscillator input of the transmission path and the two transmission paths. According to one example of the invention, the frequency divider circuit is designed for frequency division of a signal present at an input and for outputting the frequency-divided signal to one of the three outputs. With the programmable frequency divider circuit, signals at the three inputs of the frequency divider circuit can thus be divided arbitrarily in terms of their frequency and be output at the outputs in a manner dependent on the desired operating mode of the transceiver circuit.
Public/Granted literature
- US20050239417A1 Transceiver circuit and method for providing local oscillator signals in a transceiver circuit Public/Granted day:2005-10-27
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