Time Domain Corporation

Lucent Technologies Inc.

Donald David Mondul

Jerome S Gabig, Jr

Larry W Fullerton

Mark D Roberts

James Lee Richards

Ivan A Cowie

Vernon R Brethour

Mark Andrew Barnes

Jack Thomas Matheney

Loveday Haachitaba Mweene

Linda M Lee

A system for managing luggage handling includes: (a) a central information management appliance; (b) a plurality of portable impulse radio communication devices; and (c) at least one impulse radio transceiving instrument. The at least one impulse radio transceiving instrument, the plurality of communication devices and the central information management appliance are in communication. Selected portable impulse radio communication devices of the plurality of portable impulse radio communication devices are coded communication devices. Respective coded communication devices are attached with respective luggage items and communicate indication of at least one item relating to the respective luggage item.

Apparatus and method for managing luggage handling

A method for mitigating interference in impulse radio communication conveying a message from a transmitting station to a receiving station. The method comprises the steps of: (a) conveying the message in packets; (b) repeating conveyance of selected packets to make up a repeat package; and (c) conveying the repeat package a plurality of times at a repeat period greater than twice the occurrence period of the interference. The communication may convey a message from a proximate transmitter to a distal receiver, and receive a message by a proximate receiver from a distal transmitter. In such a system, the method comprises the steps of: (a) providing interference indications by the distal receiver to the proximate transmitter; (b) using the interference indications to determine predicted noise periods; and (c) operating the proximate transmitter to convey the message according to at least one of the following: (1) avoiding conveying the message during noise periods; (2) conveying the message at a higher power during noise periods; (3) varying error detection coding in the message during noise periods; (4) retransmitting the message following noise periods; (5) avoiding conveying the message when interference is greater than a first strength; (6) conveying the message at a higher power when the interference is greater than a second strength; (7) varying error detection coding in the message when the interference is greater than a third strength; and (8) retransmitting a portion of the message after interference has subsided to less than a predetermined strength.

Method for mitigating effects of interference in impulse radio communication

A system for locating of objects in a three-dimensional space comprises: (a) an impulse radio network including at least three reference impulse radio units and at least one mobile position indicating apparatus; position information relating the impulse radio units is recorded by at least one indicating impulse radio unit; the impulse radio units are in communication; and (b) an affixing structure for affixing a respective mobile position indicating apparatus with a respective object. A respective mobile position indicating apparatus transmits an impulse radio identifying signal that is received by a receiving impulse radio unit. An indicating impulse radio unit cooperates with the receiving impulse radio unit in using the identifying signal for developing coordinate information for locating the respective mobile position indicating apparatus. The method comprises the steps of: (a) providing an impulse radio network including at least three reference impulse radio units and at least one mobile position indicating apparatus; position information relating the impulse radio units is recorded by at least one indicating impulse radio unit; the impulse radio units are in communication; (b) providing an affixing structure for affixing a respective mobile position indicating apparatus with a respective object; (c) transmitting an impulse radio identifying signal from a respective mobile position indicating apparatus; (d) Receiving the identifying signal by a receiving impulse radio unit; and (e) operating an indicating impulse radio unit in cooperation with the receiving impulse radio unit to determine the location of the mobile position indicating apparatus.

Apparatus and method for locating objects in a three-dimensional space

An apparatus for establishing an operating parameter for a power supply device having an output includes: (a) a first signal source; (b) a second signal source; (c) a third signal source; and (d) a state device. The first signal source is controllable for generating a programming signal. The second signal source generates a load indicating signal and is connected with the power supply. The third signal source generates an offset signal. The state device has a first input and a second input and changes state when the first input has a predetermined relationship with the second input. The first input is determined by relative values of the programming signal and the offset signal. The second input is related with the output. The power supply device shuts down when the state device changes state. The method includes the steps of: (a) providing, in no particular order, the following signals: (1) a programming signal appropriate for the shutdown circumstance; and (2) an offset signal; (b) applying a signal representative of the output to a first input of a state device; (c) substantially simultaneously with step (b), applying one of the following signals to a second input of the state device: (1) the programming signal; or (2) a combination of the programming signal and the offset signal; and (d) changing state of the state device when the first input has a predetermined relationship with the second input. The shutdown circumstance is effected when the state changes.

Apparatus and method for establishing an operating parameter for a power supply device

Growing community of inventors

Dallas, TX, United States of America

Donald David Mondul