US 6,192,400 B1 · Multilevel data communication system including local and host systems

Abstract

A computerized system for managing freight or the like which is picked up at various points and delivered to other various destinations, and more particularly to such a system which utilizes hand-held terminals, scanners and printers which are linked together by a micro link radio to each other and by a wide area network radio link to a main area station which can receive and transmit information to a plurality of sets of terminals, printers and the like for managing an overall freight system.

Claims13

Dependent claims

A data communication system comprising:

A plurality of remote data systems comprising a portable terminal, a code reader, and a printer, at least one of the portable terminal, code reader, or printer comprising a battery power source;
each of the portable terminal, code reader, and printer having a wireless transceiver for communication at a lower power transmission;
a local wireless transceiver;
a local computer system communicatively coupled to the local wireless transceiver and communication occurs between the host computer system and the one of the portable terminal, code reader, or printer of each of the plurality of remote data systems via higher power transmissions through the local wireless transceiver.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

09/148,962Filed 8 Sep 1998 · continuation

Priority

25 May 1990

Granted

20 Feb 2001

Term ends

Not estimatedThe source records don’t support an estimate.

Classification43 codes

H04L 1/0032
Characterised by the signalling: without explicit signalling
B60R 11/02
Arrangements for holding or mounting articles, not otherwise provided for: for radio sets, television sets, telephones, or the like; Arrangement…
B60R 11/0241
For radio sets, television sets, telephones, or the like; Arrangement of controls thereof: for telephones
G06F 1/1626
For portable computers: with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]

Family

Application07/529,353Parent of this continuation-in-part · filed 25 May 1990

Application07/558,895Parent of this continuation-in-part · filed 25 Jul 1990

Application07/854,115Parent of this continuation · filed 18 Mar 1992

Application07/876,629Parent of this continuation · filed 30 Apr 1992

Application08/448,237Parent of this continuation · filed 23 May 1995

US 5,805,807 AParent of this continuation · filed 8 Sep 1998

Application07/854,115Parent of this continuation-in-part

US 6,192,400 B1This patent

From the US filing history. Foreign family members aren’t listed.

Multilevel data communication system including local and host systems

Life of this patent

Multilevel data communication system including local and host systems

Life of this patent

Abstract

Claims13