Invention Grant
US07825724B2 Method and apparatus for direct digital to radio frequency conversion
有权
用于直接数字到射频转换的方法和装置
- Patent Title: Method and apparatus for direct digital to radio frequency conversion
- Patent Title (中): 用于直接数字到射频转换的方法和装置
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Application No.: US11958978Application Date: 2007-12-18
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Publication No.: US07825724B2Publication Date: 2010-11-02
- Inventor: Lawrence F. Cygan , Curtis M. Williams , Andrew M. Khan
- Applicant: Lawrence F. Cygan , Curtis M. Williams , Andrew M. Khan
- Applicant Address: US IL Libertyville
- Assignee: Motorola Mobility, Inc.
- Current Assignee: Motorola Mobility, Inc.
- Current Assignee Address: US IL Libertyville
- Main IPC: H03F3/38
- IPC: H03F3/38
Abstract:
A method and apparatus for direct conversion of digital data to high power RF signals, known as DDRF. The method and apparatus receive a digital signal, create a digital modulated signal therefrom, and amplify the modulated signal with an H-bridge Power Amplifier for transmission. DDRF uses a multi-level H-bridge amplification circuit to establish a more power efficient digital transmitter.
Public/Granted literature
- US20090153242A1 METHOD AND APPARATUS FOR DIRECT DIGITAL TO RADIO FREQUENCY CONVERSION Public/Granted day:2009-06-18
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