Browse Prior Art Database

Simple Infrared Connection between Personal Computers and Set-top Boxes

IP.com Disclosure Number: IPCOM000114088D
Original Publication Date: 1994-Nov-01
Included in the Prior Art Database: 2005-Mar-27
Document File: 2 page(s) / 49K

Publishing Venue

IBM

Related People

Balasubramanian, PS: AUTHOR [+2]

Abstract

Set-top converter boxes today allow unidirectional infrared communication. That is, they can receive IR commands from a remote control unit or some other specialized piece of equipment. With the advent of an industry standard for IR communications (IRDA), it is possible to add an IR transmitter to the converter box to facilitate bidirectional communications.

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Simple Infrared Connection between Personal Computers and Set-top
Boxes

      Set-top converter boxes today allow unidirectional infrared
communication.  That is, they can receive IR commands from a remote
control unit or some other specialized piece of equipment.  With the
advent of an industry standard for IR communications (IRDA), it is
possible to add an IR transmitter to the converter box to facilitate
bidirectional communications.

      An IR-equipped computer can then communicate through the
converter box with the information network behind it, functioning as
both an intelligent remote control, aiding the consumer in navigating
the variety of information sources available through this channel,
and as an ordinary personal computer, performing local data
processing tasks such as the storage, manipulation, retrieval, and
presentation of data.

      IRDA standards are emerging that give clear guidelines as to
the physical and logical implementation of an IR subsystem.  IBM has
designed and built an integrated circuit that embodies the proper
implementation, along with a small transceiver unit.  These can be
designed into portable computers, both integrated on the planar board
and as retrofit units.  It is necessary to replace the existing IR
subsystem on a converter box with this IBM set and modify the
converter box to facilitate outgoing data transmission through the IR
subsystem as well as the standard video port.

      This invention will incre...