# US 5,708,680 A · Network utilizing a controller and base transceivers to route voice packets

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- Number: US 5,708,680 A
- Document ID: US5708680A
- Status: Granted
- Kind: A
- Application number: 08/486,017
- Filed: 1995-06-07
- Granted: 1998-01-13
- Earliest claimed: 1991-05-14
- Assignees: Norand Corporation
- Inventors: Charles D. Gollnick; Ronald E. Luse; John G. Pavek; Marvin L. Sojka; James D. Cnossen; Robert G. Geers; Arvin D. Danielson; Mary L. Detweiler; Gary N. Spiess; Guy J. West; Amos D. Young; Keith K. Cargin, Jr.; Richard C. Arensdorf; Ronald L. Mahany
- Web page: https://patentgrep.com/patent/US5708680A

## CPC

- G08C 17/02: using a radio link
- H04L 1/0003: {by switching between different modulation schemes}
- H04L 1/0025: {Transmission of mode-switching indication}
- H04L 1/0032: {Without explicit signalling}
- H04W 52/343: {taking into account loading or congestion level}
- H04W 52/346: {distributing total power among users or channels}
- G08C 2201/20: Binding and programming of remote control devices
- H04B 17/0085: {using test signal generators}
- H04L 12/403: with centralised control, e.g. polling
- H04L 69/18: Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
- H04W 52/029: {reducing the clock frequency of the controller}
- Y02D 30/70: in wireless communication networks
- G08C: TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS (fluid pressure transmitting systems F15B; mechanical means for transferring the output of a sensing member into a different variable G01D5/00; mechanical control systems G05G)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

Improved apparatus for a radio communication system having a multiplicity of mobile transceiver units selectively in communication with a plurality of base transceiver units which communicate with one or two host computers for storage and manipulation of data collected by bar code scanners or other collection means associated with the mobile transceiver units. A network controller provides selective interface means to be employed between the host computers and the base transceivers whereby low data rate base transceivers may be utilized with the network controller while spread spectrum or high data rate networked base transceivers may be also utilized. The network controller may allow selection of interface means for three of its ports from its front panel with use of three input keys. The network controller is entirely external to the host computer or computers, and can couple to a variety of commonly encountered host ports. Most preferable one- or two-network controller ports can each be software configured to match any needed host port, so that the host computer(s) need not be adapted to a radio network protocol accommodating the multiple base transceiver units.

## Claims

### Claim 1

In a communication system supporting communication within a premises, a method of communicating voice messages among a plurality of mobile transceiver units utilizing a plurality of base transceiver units and a network controller, said plurality of base transceiver units, said plurality of mobile transceiver units and said network controller being located within said premises, said method comprising:
digitizing by one of said plurality of mobile transceiver units a signal indicative of a voice message;
segmenting by said one of said plurality of mobile transceiver units said digitized signal;
linking at least two of said plurality of base transceiver units with said network controller via a plurality of communication ports on said network controller;
configuring by said network controller said plurality of communication ports to be communicatively compatible with said linked at least two of said plurality of base transceiver units;
managing by said network controller communication of said digitized and segmented signal among selected ones of said linked at least two of said plurality of base transceiver units and selected others of said plurality of mobile transceiver units; and
after receipt and after assembly of all of the segments of the digitized voice message, synthesizing by the second of the plurality of mobile transceiver units the assembled digitized voice messages.

### Claim 2 (depends on 1)

The method of claim 1 further comprising:
assembling by another of said plurality of mobile transceiver units said digitized and segmented signal; and
synthesizing by said another of said plurality of mobile transceiver units said assembled signal.

### Claim 3 (depends on 1)

The method of claim 1 wherein the at least two of the plurality of base transceiver units linked with the network controller via the plurality of communication ports on the network controller are linked by a plurality of different electrical interfaces.

### Claim 4 (depends on 1)

The method of claim 1 wherein the plurality of communication ports configured to be communicatively compatible with the linked at least two of said plurality of base transceiver units are configured to communicate with the linked at least two of the plurality of base transceiver units according to a plurality of different communication protocols.

### Claim 5

In a communication system supporting communication within a premises, a method of communicating voice messages and data messages among a plurality of mobile transceiver units utilizing plurality of base transceiver units, the plurality of base transceiver units and the plurality of mobile transceiver units being located within the premises, each of the plurality of base transceiver units supporting communication with each of the plurality of mobile transceiver units, the method comprising:
digitizing by a first of the plurality of mobile transceiver units voice messages; segmenting by the first of the plurality of mobile transceiver units data messages and the digitized voice messages;
routing within the premises the data message segments and the voice messagesegments wherein each of the voice message segments and the data message segments compete equally for available bandwidth via the first of the plurality of mobile transceiver units to at least one of the plurality of base transceiver units
receiving by the second of the plurality of mobile transceiver units the segments of digitized voice messages;
assembling by the second of the plurality of mobile transceiver units the segments of digitized voice messages; and
synthesizing by the second of the plurality of mobile transceiver units the assembled digitized voice messages.

### Claim 6 (depends on 5)

The method of claim 5 wherein the second of the plurality of mobile transceiver units only performing the synthesizing after all of the segments of a digitized voice message has been received and assembled.

### Claim 7

In a communication system supporting communication within a premises, a method of communicating a voice message among a plurality of mobile transceiver units utilizing a plurality of base transceiver units, the plurality of base transceiver units and the plurality of mobile transceiver units being located within the premises, the method comprising:
digitizing by a first of the plurality of mobile transceiver units a voice message;
segmenting by the one of the plurality of mobile transceiver units the digitized voice message;
routing within the premises the segments of the voice message via at least one of the plurality of base transceiver units to a second of the plurality of mobile transceiver units;
receiving by the second of the plurality of mobile transceiver units the segments of the digitized voice message;
assembling by the second of the plurality of mobile transceiver units the segments of the digitized voice message; and
after receipt and after assembly of all of the segments of the digitized voice message, synthesizing by the second of the plurality of mobile units the assembled digitized voice message.

### Claim 8 (depends on 7)

The method of claim 7 further comprising segmenting by the one of the plurality of mobile transceiver units a data message, and wherein the segments of the data message are routed via the at least one of the plurality of base transceiver units.
