Patent ID: 7991100

Claim:
A method of synchronizing a radio receiver suitable for receiving coded symbols in the form of radio pulses, each transmitted in a predetermined time slot within a respective frame, said slot being determined by a value selected from a set of ordered values forming a code stored in the receiver, the method comprising the following steps, performed within the receiver: a—detecting received pulses; b—storing moments of reception of said pulses; c—associating a first value selected from the code with a first received pulse; d—selecting a second value from the code; e—estimating at least one moment of reception by combining the moment of reception stored for said first received pulse with said first and second selected code values; f—if the estimated moment matches the moment of reception stored for a second received pulse, validating the associations of said first and second code values with said first and second received pulses, otherwise repeating steps c to f by varying at least one of said first and second selected code values; and g—deducing, from at least one of the values of the code whose selection has been validated, a moment of transmission start for a symbol, wherein, in step f, the moment of reception estimated for a second received pulse matches the moment of reception stored for said second received pulse if an absolute value of a difference between the estimated and stored moments of reception for the second received pulse is less than a predetermined fraction of the duration of a time slot.