Symbol tracking for AM in-band on-channel radio receivers
US7733983B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Jun 8, 2010 |
| Priority date | — |
| Expiry date | Sep 15, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04H20/36
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.