Computation-conserving traffic data transmission method and appa

Details Computation-conserving traffic data transmission method and appa Computation-conserving traffic data transmission method and appa

1989-12-07

1993-01-19

Beausoliel, Robert W.

Excavating

455228, 455345, G06F 1110

Patent

active

051812088

ABSTRACT:
In the evaluation of traffic announcements received in digitally encoded form in a data packet, the data packet is decoded continuously, and the traffic announcements are stored in memory after the decoding and evaluation. A computer in the receiver must evaluate the incoming data stream continuously. Since evaluation is difficult, particularly under unfavorable broadcasting conditions in which error corrections may be necessary, the computer would have to have a very complex program structure and configuration. To make it possible to use a simpler computer configuration and program structure, one complete cycle of traffic announcements is first decoded, optionally error corrected and stored in memory. Next, an updating bit present in the data packet and altered upon any change in the traffic announcements, is identified and evaluated. As a fuction of this evaluation, a further complete cycle of traffic announcements is decoded and stored in memory only if the updating bit has altered.

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