System for optimizing data transmissions associated with address

Details System for optimizing data transmissions associated with address System for optimizing data transmissions associated with address

1989-11-22

1992-05-12

Dixon, Joseph L.

Boots, shoes, and leggings

341173, G06K 1500, H04L 1100

Patent

active

051133547

ABSTRACT:
A method and associated computer program operate to optimize signals being exchanged between a host unit and an addressable-buffer peripheral device. The program optimizes an outgoing signal from the host unit by (1) creating an updated-state map representing the state of the peripheral device buffer expected to exist after processing by the peripheral device of the outgoing signal, (2) performing an exclusive-or (XOR) operation using the updated-state map and a present-state map representing the existing state of the buffer, and (3) constructing and transmitting a substitute outgoing signal which represents changes to the buffer, and in which all premodified field flags are turned off. Position-dependent characters, such as attribute bytes, are translated into nondata characters prior to incorporation into a map, and are retranslated into their original form for use in the substitute signal.

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patent: 4750137 (1988-06-01), Harper et al.
patent: 4757460 (1988-07-01), Bione et al.
IBM System Productivity Facility Dialog Management Services manual, Order No. SC34-2036-1, File No. S370/4300-39, second edition, Mar. 1981.
Ovsyannikov et al., "A method of avoiding duplication of documentary information," Soviet Instr. & Ctl. J. No. 4, Apr. 1971, pp. 6-8.
Wallace et al., "Data driven operating concepts for real-time simulation systems", IEEE 1985 Nat'l Aerospace & Electr. Conf., pp. 156-163.
Interactive System Productivity Facility SPF Version 2 Release 3 Dialog Management Guide, MSV pp. 101-113. (1987).
"Catching the Whispers from Uranus," Aerospace America, May 1986, p. 44 (Lexis Printout pp. 4-8).

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