Data communication device
AssigneeSymbol Technologies, Inc.
InventorsFrederic Heiman, Joseph Katz, Robert Beach, Andrew R. Werback
Life of this patent
Estimating the term…
Abstract
Simplified data message terminals and data communicating voice terminals are described for providing additional functionality in a facility using a wireless data communication system. The simplified data message terminals provide message and paging communication to employees or customers in a simplified terminal configuration using the existing data communication system. By performing voice to data and data to voice conversions, the same system provides voice communication without interruption of data communication services.
Claims28
A mobile scanning-unit, comprising:
- a scanner for scanning optical codes;
- a programmed controller for controlling the scanner and receiving scanned data therefrom;
- a radio module for data scanning;
- a display, the display having a first screen having a first resolution and a second screen having a second resolution, and wherein the second resolution is higher than the first resolution;
- an annunciator;
- an antenna;
- a plurality of user-depressable buttons;
- wherein the radio module is programmed to receive alphanumeric paging messages, to provide the alphanumeric paging messages to the display, and to engage the annunciator to signal receipt of a paging message;
- wherein said controller is arranged to receive a first data message, to display the first data message on the first screen, to receive a second data message, to display said second data message on the second screen, and to signal a user to refer to the second screen.
A system for scanning, comprising:
- (1) at least one mobile scanning unit, each comprising:
- (a) a scanner for scanning optical codes;
- (b) a radio module;
- (c) a display, the display having a first screen having a first resolution and a second screen having a second resolution, and wherein the second resolution is higher than the first resolution;
- (d) an annunciator;
- (e) a power source and a power manager;
- (f) a plurality of memory elements;
- and
- (g) a plurality of user-depressable buttons;
- (2) a wired network;
- and
- (3) at least one access point;
- wherein the at least one access point is capable of transmitting transmission data from the wired network to the at least one mobile scanning unit via a wireless medium and receiving reception data from the at least one mobile scanning unit to the wired network via a wireless medium;
- wherein the at least one access point forms a transmission area, the transmission area including the space where association to the at least one access point is possible by the at least one mobile scanning unit;
- and
- wherein the at least one access points broadcasts a periodic beacon via a wireless medium;
- wherein each of the at least one mobile scanning unit attempts to associate with the at least one access points by broadcasting a poll via a wireless medium on a first periodic basis unless otherwise instructed by the power manager within the specific mobile scanning unit;
- and
- wherein at least one of the at least one mobile scanning unit is arranged to receive a first data message, to display the first data message on the first screen of the mobile scanning unit, to receive a second data message, to display the second data messages on the second screen of the mobile scanning unit, and to signal a user to refer to the second screen.
Dependencies are inferred from the claim text.