Multiplex communications – Wide area network – Packet switching
Patent
1989-09-14
1990-11-27
Olms, Douglas W.
Multiplex communications
Wide area network
Packet switching
H04J 306
Patent
active
049742256
ABSTRACT:
A data receiver interface circuit is provided with a circuit for accepting correctly framed data. The plurality of data bits sandwiched between a pair of frame pulses is temporarily stored while the number of clock cycles occurring between the frame pulses is determined to be a valid number. The data is accepted by the receiver if the number of clock cycles occurring between the pair of successive frame pulses is a valid number.
REFERENCES:
patent: 3928727 (1975-12-01), Roche
patent: 4282600 (1981-08-01), Zemanek
patent: 4323790 (1982-04-01), Dunning et al.
patent: 4353129 (1982-10-01), Nishiwaki
patent: 4596026 (1986-06-01), Cease et al.
Chenier Marcel
Wale Brian
Hsu Alpus H.
Northern Telecom Limited
Olms Douglas W.
Turpin F. P.
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