发明授权
- 专利标题: Method and system for flexible FM tuning
- 专利标题(中): 柔性FM调谐的方法和系统
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申请号: US11287120申请日: 2005-11-22
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公开(公告)号: US07515935B2公开(公告)日: 2009-04-07
- 发明人: Brima Ibrahim , Bojko Marholev , Lijun Zhang
- 申请人: Brima Ibrahim , Bojko Marholev , Lijun Zhang
- 申请人地址: US CA Irvine
- 专利权人: Broadcom Corporation
- 当前专利权人: Broadcom Corporation
- 当前专利权人地址: US CA Irvine
- 代理机构: McAndrews, Held & Malloy, Ltd.
- 主分类号: H04Q7/32
- IPC分类号: H04Q7/32
摘要:
A method and system for flexible FM tuning are provided and may include tuning to a particular frequency within a range of FM channels based on an IF frequency that includes an integer multiple of the channel spacing between neighboring allocated FM channels within the range of FM channels, offset by at most one-half the channel spacing. The method may further include determining whether the particular frequency comprises an on frequency channel, utilizing a frequency error that is based on the IF frequency. A local oscillator frequency may be selected for the tuning based on the frequency offset. An intermediate frequency (IF) channel may be generated utilizing the particular frequency and the selected local oscillator frequency. The generated IF channel may be between neighboring channels selected from the range of FM channels. The frequency error may be determined for the particular frequency within the range of FM channels.
公开/授权文献
- US20060270337A1 Method and system for flexible FM tuning 公开/授权日:2006-11-30
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