发明授权
- 专利标题: Tuner for cable, satellite and broadcast applications
- 专利标题(中): 电缆,卫星和广播应用的调谐器
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申请号: US12184652申请日: 2008-08-01
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公开(公告)号: US08373804B2公开(公告)日: 2013-02-12
- 发明人: Curtis Ling , Patrick Tierney , Ramakrishna Akella
- 申请人: Curtis Ling , Patrick Tierney , Ramakrishna Akella
- 申请人地址: US CA Carlsbad
- 专利权人: Maxlinear, Inc.
- 当前专利权人: Maxlinear, Inc.
- 当前专利权人地址: US CA Carlsbad
- 代理机构: Kilpatrick Townsend & Stockton LLP
- 代理商 Ardeshir Tabibi
- 主分类号: H04N5/455
- IPC分类号: H04N5/455 ; H04N5/50
摘要:
A tuner includes, in part, one or mixers, one or more filters, one or more variable gain stages, one or more analog to digital converters, and a baseband processor. Each filter is responsive to an associated mixer's output signal. Each variable gain stage is responsive to an associated filter's output. Each analog-to-digital converter is adapted to convert the output signal of an associated variable gain stage to a digital signal. The baseband processor is responsive to the digital signal supplied by the analog-to-digital converter(s). The baseband processor is further configured to supply a signal to be demodulated by a processing unit external to the integrated circuit. The baseband processor performs no or a fraction of the required demodulation functions. The processing unit may be a central processing unit or a graphical processing unit.
公开/授权文献
- US20090040391A1 TUNER FOR CABLE, SATELLITE AND BROADCAST APPLICATIONS 公开/授权日:2009-02-12
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