发明授权
- 专利标题: Symbol tracking for AM in-band on-channel radio receivers
- 专利标题(中): AM带内在线无线电接收机的符号跟踪
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申请号: US11273099申请日: 2005-11-14
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公开(公告)号: US07733983B2公开(公告)日: 2010-06-08
- 发明人: Brian William Kroeger , Kun Wang
- 申请人: Brian William Kroeger , Kun Wang
- 申请人地址: US MD Columbia
- 专利权人: iBiquity Digital Corporation
- 当前专利权人: iBiquity Digital Corporation
- 当前专利权人地址: US MD Columbia
- 代理机构: Pietragallo Gordon Alfano Bosick & Raspanti, LLP
- 代理商 Robert P. Lenart, Esq.
- 主分类号: H03D1/24
- IPC分类号: H03D1/24 ; H04L7/00
摘要:
A method for symbol tracking in AM in-band on-channel radio receivers comprises the steps of: receiving a stream of time domain samples; assembling a set of the time domain samples equal to a symbol time plus a half symbol delay in response to a symbol timing adjustment value for each symbol period; interpolating the time domain samples; partitioning the interpolated time domain samples into a first group of samples representing half-off symbols and a second group of samples representing on-time symbols; processing the first and second groups of samples to produce the symbol timing adjustment value; and outputting the second group of samples representing on-time symbols at a symbol rate. An apparatus that performs the method is also included.
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