Invention Grant
- Patent Title: Method and apparatus for bandpass digital-to-analog conversion
- Patent Title (中): 用于带通数字到模拟转换的方法和装置
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Application No.: US12688734Application Date: 2010-01-15
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Publication No.: US08013771B2Publication Date: 2011-09-06
- Inventor: Richard W. D. Booth , Gregoire Le Grand de Mercey
- Applicant: Richard W. D. Booth , Gregoire Le Grand de Mercey
- Applicant Address: JP Osaka
- Assignee: Panasonic Corporation
- Current Assignee: Panasonic Corporation
- Current Assignee Address: JP Osaka
- Main IPC: H03M1/66
- IPC: H03M1/66

Abstract:
The disclosed embodiments provide method and apparatus for digital to analog conversion of a signal that may be limited to a bandpass frequency. In an exemplary embodiment, a bandpass DAC is disclosed which includes a plurality of gates. Each gate receives a carrier signal and one of a plurality of input bits of a digital data. A combiner network is provided which includes a plurality of lossless elements corresponding to each of the plurality of gates. The combiner network receives the gate outputs and provides a digitally weighted signal. A resonating element connected to the combiner network resonates the combiner network and provides a filtered output signal which is linearly combined.
Public/Granted literature
- US20110175764A1 METHOD AND APPARATUS FOR BANDPASS DIGITAL-TO-ANALOG CONVERSION Public/Granted day:2011-07-21
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