Browse Prior Art Database

Intelligent Home System

IP.com Disclosure Number: IPCOM000122466D
Original Publication Date: 1991-Dec-01
Included in the Prior Art Database: 2005-Apr-04
Document File: 2 page(s) / 82K

Publishing Venue

IBM

Related People

Castellano, G: AUTHOR [+4]

Abstract

This article describes a method of overcoming delay restrictions on the use of broadcast TV teletext facilities by inclusion of removable media DASD in the TV. Also described is a means of providing an intelligent home environment in which the telephone, TV and PC are interlinked.

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

Intelligent Home System

      This article describes a method of overcoming delay
restrictions on the use of broadcast TV teletext facilities by
inclusion of removable media DASD in the TV.  Also described is a
means of providing an intelligent home environment in which the
telephone, TV and PC are interlinked.

      The problem of teletext response time is inherent in the means
of its broadcast.  Data for each screen is transmitted between the
video frames, thus reducing the volume and speed of data
transmission.  The user experiences delays within screen searches and
loss of pages during a skip or hold command to the TV.  Storage
requirements to hold 1000 pages of 500 bytes for such data would be
of the order of 500 KB.  To improve service, the teletext data pages
could be held in local TV storage whereby update information is
written to the storage media.  A rewritable media, having low cost, a
capacity of >>500 KB, noiseless, and not requiring cooling is
required.  If such media is removable, then the data and/or video
could be subsequently manipulated in a PC spreadsheet/database
environment. Eraseable optical disk storage having a media diameter
of something like 2 inches would be suitable.

      Broadcast data would be written to the disk as it is
transmitted dictating an average response time for the DASD of <50
ms, and is updated when so transmitted - hence the re-writeability
requirement.  When accessed by the user, response time would now
appear minimal as the data is read from disk, rather than the current
TV signal.  If power is maintained to the TV and DASD, the update
process would continue uninterrupted even while the receiver is in
standby mode.  With improved, larger and faster service, the storage
capacity of the media...