Patent ID: 6900828

Claim:
A method for improving the reception of a transmitted signal comprising the steps of: producing a main set and a supplemental set of high priority data from a first source in a transmitter; delaying said main set of high priority data in time with respect to said supplemental set of high priority data; producing a main set and a supplemental set of low priority data from a second source; delaying said main set of low priority data in time with respect to said supplemental set of low priority data; transmitting a signal carrying said main and delayed supplemental sets of both said high priority and low priority data for reception by a receiver; applying said main set of high priority data received in said receiver to normal high priority data reception channels of said receiver; storing said supplemental set of high priority data received in said receiver in a buffer for high priority data in said receiver; applying said main set of low priority data received in said receiver to normal low priority data reception channels in said receiver; storing said supplemental set of low priority data received in said receiver in a buffer for low priority data in said receiver; detecting an undesired change in said transmitted signal; substituting corresponding portions of said supplemental high priority signal stored in said buffer for any undesirably changed portions of said main high priority signal; and substituting corresponding portions of said supplemental low priority signal stored in said buffer for any undesirably changed portions of said main low priority signal.