Thomas P Dillon

US Patent:

56821573, Oct 28, 1997

Filed:

Oct 19, 1992

Appl. No.:

7/962746

Inventors:

Daniel R. Asmussen - Kirkland WA
Michael D. Shride - Helena MT
James A. Sloate - Duvall WA
Thomas P. Dillon - Woodinville WA

Assignee:

Fasirand Corporation - Helena MT

International Classification:

H03M 504

US Classification:

341 68

Abstract:

Disclosed is a system for rapid, wireless communication of electrically-generated and detected, serial digital data signals via a plurality of infrared (or other compatible wireless medium) transceivers. Signals are communicated without electrical connection among computers, fax machines, computer peripheral equipment, or may be employed within self-contained communication, control data-acquisition, and/or display systems. The system operates at predetermined maximum data rates and sub-multiples thereof. The disclosed transceivers can be joined with additional circuits, to form an arrangement that operates as a wireless modem. In each arrangement, light is continuously modulated at either of two precise multiples of the predetermined maximum data rate, and is synchronized to transmitted-data transitions. Upon receipt of light-signals thus produced, the system's receiving transceiver synchronizes received-data electrical output signals to the received modulated light signals. Received light-modulation periods are measured and verified continuously within each data-state interval, minimizing data-delay times and transition-timing distortions in the system's electrical output signals.

US Patent:

60940298, Jul 25, 2000

Filed:

Oct 20, 1998

Appl. No.:

9/176045

Inventors:

Andrew E. Reynolds - Bothell WA
Brian Arthur - Marion MA
Kenneth L. Coffman - Mt. Vernon WA
Thomas P. Dillon - Burlington WA
Claudiu Bulai - Bellevue WA

Assignee:

Intermec IP Corporation - Beverly Hills CA

International Classification:

H02J 702

US Classification:

320111

Abstract:

A rechargeable power pack comprises a housing, an energy storage device received in the housing, and a set of contacts extending from the housing and electrically coupled to the energy storage device to provide an electrical input current to the energy storage device at a first time and an electrical output current from the energy storage device at a second time. The electrical contacts are preferably formed as a set of prongs sized and dimensioned to be received in a standard electrical outlet. The rechargeable power pack may contain a charging circuit, a discharging circuit, and a switch to selectively couple the charging circuit and the discharging circuit between the contacts and the energy storage device. Additional circuitry may be provided for decoupling the charging circuit when either a voltage, temperature, or time has exceeded some predefined value.