H - Electricity – 03 – K
Patent
H - Electricity
03
K
340/205, 328/87,
H03K 5/00 (2006.01) G11B 20/12 (2006.01) G11B 20/18 (2006.01) G11B 27/30 (2006.01)
Patent
CA 1179750
ABSTRACT: " DIGITAL SYNCHRONISING SYSTEM" A synchronising system for the control of the transmission of digital information which is composed of blocks separated by gaps and for which synchronisation requires the production of a reference pulse. Each field of information includes a series of spaced coded synchronising control words each of which is a coded representation of the separation between the word and the position required for the synchronising signal. The synchroniser (Figure 3) includes a decoder composed of read-only memories (IC2, IC3) which can set a counter (IC4, IC5 and IC6) in accordance with the separation. The decoded synchronising control signal is compared by comparator IC8 and a read-only memory IC7 with the instantaneous contents of the counter and the counter is adjusted only if parity is not detected. If parity is detected and continues to be detected for each synchronising control word, the counter counts towards a datum whereupon the synchronising signal is produced. The occasions of parity are counted by another counter which causes the production of an inhibiting signal for the output synchronising signal unless a predetermined number of occasions of parity are counted. ARGH/BMS/BA1600
367955
Griffiths Frank A.
Hankinson Joseph R.
Fetherstonhaugh & Co.
Polygram G.m.b.h.
LandOfFree
Digital synchronising system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Digital synchronising system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Digital synchronising system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1301522