Browse Prior Art Database

PAGER BASED TIME SYNCHRONIZATION OF HOUSEHOLD APPLIANCES

IP.com Disclosure Number: IPCOM000009138D
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-09

Publishing Venue

Motorola

Related People

Authors:
Edward Robinson

Abstract

This paper describes a method for maintaining accurate time-of-day information for household appliances by using a pager to communicate with the appliances via the home's standard electrical wiring. A pager that can extract GPS-accurate time information from the paging channel (e.g. PLEX/RePLEX), introduces a signal containing the time information onto the circuit. Any appliance that is plugged in (microwave oven, VCR, clock, etc.) can decode this signal to extract accurate time. Obvious benefits include accurate time, recovery from power failure, automatic compensation for daylight savings time and consistency of time between devices.