JITTER CORRECTING APPARATUS CAPABLE OF ENSURING SYNCHRONISM BETWEEN TRANSMITTER APPARATUS AND RECEIVER APPARATUS

摘要

When a beacon (n-1) transmitted from a Piconet coordinator (PNC) is detected both in a MAC layer of the PNC and in a MAC layer of a device (DEV), a detection signal is immediately conveyed to a LINK layer. In the LINK layer, the counting is performed from the detection of the beacon until a predetermined timing to produce a cycle timer. The PNC adds the PNC cycle timer to the next beacon (n) and transmits it to the DEV. The LINK layer of the DEV compares the DEV cycle timer of the produced beacon (n-1) with the PNC cycle timer received from the PNC, and uses the difference value therebetween to correct the DEV cycle timer such that it meets the PNC cycle timer.