Communications: electrical – Continuously variable indicating – With meter reading
Patent
1995-05-05
1998-08-11
Horabik, Michael
Communications: electrical
Continuously variable indicating
With meter reading
34082508, 3642408, 395289, 370451, G05B 2300
Patent
active
057933073
ABSTRACT:
An apparatus and method to implement a hybrid contention and polling protocol for a communications or computer network is disclosed. Various apparatus and method embodiments of the invention employ specific polls from a primary station for polling identified secondary stations of the network which may be in an active state; limited contention polls to an identified individual secondary station which may be in an idle state or to an identified subset of a plurality of secondary stations which may be in an idle state to initiate limited contention access to the network; limited contention polls for collision resolution in the event that a plurality of secondary stations in an idle state may have simultaneously contended for network access; general polls to any of a plurality of secondary stations of the network which may be in an unresponsive state to initiate contention access to the network; and general polls for collision resolution in the event that a plurality of secondary stations may simultaneously contend for network access. Various embodiments may also include frequency channel allocation for transmission and reception of data and other information within the network.
REFERENCES:
patent: 5132680 (1992-07-01), Tezuka et al.
patent: 5161151 (1992-11-01), Kimura et al.
patent: 5166675 (1992-11-01), Amemiya
patent: 5479406 (1995-12-01), Matsutani
Joshi Abhay
Kabatepe Mete
Lloyd Lawrence W.
Perreault John A.
Schroeder Stephen
Gamburd Nancy R.
Horabik Michael
Klayman Jeffrey T.
Motorola Inc.
Wilson Jr. William H.
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