Browse Prior Art Database

Control of Distributed Audio by Personal Computer-Based Home Automation System

IP.com Disclosure Number: IPCOM000118620D
Original Publication Date: 1997-Apr-01
Included in the Prior Art Database: 2005-Apr-01
Document File: 2 page(s) / 66K

Publishing Venue

IBM

Related People

Paradise, JT: AUTHOR [+2]

Abstract

While there are means of sending audio over the power lines today, the means of controlling the distribution is limited to manual selection. This article describes a means to control the distribution of audio by a Personal Computer (PC) based Home Automation (HA) system. A PC-based HA system provides the ability to intelligently switch distribution paths, remotely select these paths, and schedule the selection to occur at specific times during the day.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 52% of the total text.

Control of Distributed Audio by Personal Computer-Based Home Automation
System

      While there are means of sending audio over the power lines
today, the means of controlling the distribution is limited to manual
selection.  This article describes a means to control the
distribution of audio by a Personal Computer (PC) based Home
Automation (HA) system.  A PC-based HA system provides the ability to
intelligently switch distribution paths, remotely select these paths,
and schedule the  selection to occur at specific times during the
day.

      While this article describes a method of controlling audio over
the house wiring, the concept is applicable for any transmission
medium such as Radio Frequency (R/F), Coaxial wire, InfraRed signals,
etc.

      The HA Audio Distribution System (ADS) connects to the speaker
terminals of the audio source and sends this signal over the
electrical power line to remote receivers located throughout the
house. Speakers  are attached to the remote receiver which removes
the audio signal from  the power line and directs it to the speakers.

      The means to accomplish this is included in the high function
HA modules described in this article.  The Audio Distribution System
consists of two devices, an Audio Module (AM) and a Speaker Module
(SM).  The modules are like all other HA modules in that they have a
unique address which must match the address being sent over the power
line before they are enabled.

      The Audio Module has a set of input connectors which accept a
stereo audio source and a set of connectors which supply audio to
local speakers.  The AM accepts a Home Automation command that
directs the incoming audio to either the local speaker connection, on
to the power  line, or both.  The local connection is the default.

     ...