Joseph J Kubler, Michael D Morris: Hierarchical data collection network supporting packetized voice communications among wireless terminals and telephones. Norand Corporation, Stanford & Bennett, March 10, 1998: US05726984 (620 worldwide citation)

A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. The network ...

Steven E Koenck, Phillip Miller, Arvin D Danielson, Ronald L Mahany, Dennis A Durbin, Keith K Cargin, George E Hanson, Darald R Schultz, Robert G Geers, Darrell L Boatwright, William T Gibbs, Stephen J Kelly: Hand-held data capture system with interchangable modules. Norand, R Lew Gable, McAndrews Held, April 25, 1995: US05410141 (531 worldwide citation)

The disclosure relates to battery powered hand-held data entry terminals wherein a peripheral module may contain an automatically operating full image reader and a wireless communication unit. The reader reads at least one full line of indicia and may comprise a laser bar code scanner or a flash typ ...

Robert C Meier, Marvin L Sojka, Ronald E Luse: Radio frequency local area network. Norand Corporation, McAndrews Held & Malloy, March 15, 1994: US05295154 (375 worldwide citation)

An apparatus and a method for routing data in a radio data communication system having one or more host computers, one or more intermediate base stations, and one or more RF terminals organizes the intermediate base stations into an optimal spanning-tree network to control the routing of data to and ...

Steven E Koenck, David C Hacker: Battery powered system. Norand Corporation, Neuman Williams Anderson & Olson, November 24, 1987: US04709202 (375 worldwide citation)

In an exemplary embodiment, a battery conditioning system monitors battery conditioning and includes a memory for storing data based thereon; for example, data may be stored representative of available battery capacity as measured during a deep discharge cycle. With a microprocessor monitoring batte ...

Charles D Gollnick, Ronald E Luse, John G Pavek, Marvin L Sojka, James D Cnossen, Arvin D Danielson, Ronald L Mahany, Mary L Detweiler, Gary N Spiess, Guy J West, Amos D Young, Robert C Meier, Keith K Cargin Jr, Richard C Arensdorf, Robert G Geers: Network supporting roaming, sleeping terminals. Norand Corporation, Akin Gump Strauss Hauer & Feld L, August 17, 1999: US05940771 (358 worldwide citation)

A data collection network supports roaming terminals which may enter and exit a sleep mode to conserve power. A plurality of base stations each periodically transmit pending message indications to those roaming data collection terminals in range. Instead of requiring the transceiver within each term ...

Ronald L Mahany: Hierarchical communications system using microlink, data rate switching, frequency hopping and vehicular local area networking. Norand Corporation, Stanford & Bennett L, December 9, 1997: US05696903 (358 worldwide citation)

A hierarchical communication system is described in which two wireless local area networks exhibiting substantially different characteristics are employed to link inherently portable or mobile computer devices. A series of radio base stations make up a infrastructure network. The infrastructure netw ...

Arvin D Danielson, Dennis A Durbin: Hand-held instant bar code reader system with automated focus based on distance measurements. Norand Corporation, Neuman Williams Anderson & Olson, October 31, 1989: US04877949 (344 worldwide citation)

In the instant reading of bar codes by flash illumination, the disclosed system automatically adapts to bar code configurations of greater extent and/or curvature, for example by measuring distance to one or more points on the bar code and adjusting a lens barrel, and/or by selecting from multiple i ...

Arvin D Danielson, Dennis A Durbin: Core computer processor module, and peripheral shell module assembled to form a pocket size data capture unit. Norand Corporation, McAndrews Held & Malloy, July 13, 1993: US05227614 (328 worldwide citation)

A hand-held processing system wherein a peripheral module may receive therein a computer processor basic module of standardized construction, with a user-immune real-time multi-tasking operating system. Advantageously the peripheral module or computer processor module may include a touch screen or o ...

Steven E Koenck: Hand-held optically readable character set reader having automatic focus control for operation over a range of distances. Norand Technology Corporation, Suiter & Associates PC, November 24, 1998: US05841121 (310 worldwide citation)

A hand-held optically readable information set reader having one or more photosensor arrays, at least one information set illuminator, and an information set image transfer system for projecting a readable image of an information set onto the one or more photosensor arrays.

Steven E Koenck: Hand-held optical character reader with means for instantaneously reading information from a predetermined area at an optical sensing area. Norand Corporation, Neuman Williams Anderson & Olson, May 28, 1991: US05019699 (266 worldwide citation)

In a preferred arrangement, a lens system having circular symmetry in the hand-held reader focuses the entire width of area information onto an area photosensor array with a single flash of a ring-type xenon flash tube which surrounds the lens system and is symmetrically disposed relative to the axi ...