Invention Grant
US07742545B2 Method and apparatus for generating corrected quadrature phase signal pairs in a communication device
有权
用于在通信设备中产生校正的正交相位信号对的方法和装置
- Patent Title: Method and apparatus for generating corrected quadrature phase signal pairs in a communication device
- Patent Title (中): 用于在通信设备中产生校正的正交相位信号对的方法和装置
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Application No.: US11755540Application Date: 2007-05-30
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Publication No.: US07742545B2Publication Date: 2010-06-22
- Inventor: Raul Salvi , Pedro J. Landin
- Applicant: Raul Salvi , Pedro J. Landin
- Applicant Address: US IL Schaumburg
- Assignee: Motorola, Inc.
- Current Assignee: Motorola, Inc.
- Current Assignee Address: US IL Schaumburg
- Agent Barbara R. Doutre
- Main IPC: H03K9/06
- IPC: H03K9/06 ; H04L27/12

Abstract:
A method and an apparatus (300) for generating corrected quadrature phase signal pairs in a communication device are provided. The apparatus (300) includes a quadrature phase generator (310), programmable delay elements (320, 330) and a control circuit (360). The programmable delay elements (320, 330) receive a quadrature phase signal pair (signals I 312 and Q 314) from the quadrature phase generator (310). The control circuit (360) generates a control signal (362) based on outputs (325, 335) of the programmable delay elements (320, 330). The control signal (362) configures the programmable delay elements (320, 330). The programmable delay elements (320, 330) are configured to adjust delay between the signals I (312) and Q (314). The programmable delay elements (320, 330) are also used to adjust duty cycle for the quadrature phase signal pair to provide the corrected quadrature phase signal pair.
Public/Granted literature
- US20080298495A1 METHOD AND APPARATUS FOR GENERATING CORRECTED QUADRATURE PHASE SIGNAL PAIRS IN A COMMUNICATION DEVICE Public/Granted day:2008-12-04
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