Browse Prior Art Database

DIGITAL BROADCAST SYSTEM

IP.com Disclosure Number: IPCOM000008723D
Original Publication Date: 1998-Jun-01
Included in the Prior Art Database: 2002-Jul-05
Document File: 8 page(s) / 405K

Publishing Venue

Motorola

Related People

Richard Comroe: AUTHOR [+4]

Abstract

This paper describes a one-way digital broad- cast system. It is essentially a system which provides for the transport and delivery of future information based applications. It can be thought of as a wireless service roughly comparable to the World Wide Web. The highlights of the system are that it is applicable to existing FM sub-band broad- cast technology, user devices are application independent, and is applicable to a broad range of public consumer as well as private uses. User devices offers unlimited opportunity for future undefined application, Finally, it is well within today's technology for product realization.

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MOTOROLA Technical Developments

DIGITAL BROADCAST SYSTEM

by Richard Comroe, Robert Furtaw, James Nickel and Timothy Burke

OVERVIEW

  This paper describes a one-way digital broad- cast system. It is essentially a system which provides for the transport and delivery of future

information based applications. It can be thought of as a wireless service roughly comparable to the World Wide Web. The highlights of the system are that it is applicable to existing FM sub-band broad- cast technology, user devices are application independent, and is applicable to a broad range of public consumer as well as private uses. User devices offers unlimited opportunity for future undefined application, Finally, it is well within today's technology for product realization,

BACKGROUND

  Broadcast information services are already well known. Broadcast information services today include AM Broadcast, FM Broadcast, TV, and Cable. Digital broadcast services have been experi- mented with such as in TeleText systems in Europe. There are other related forms of broadcast services such as Paging, which is a wireless form of broad- cast on demand where the demand requests are entered via wired telecommunications. There is also the World Wide Web, which is not a true broadcast service in that the information is transmitted indi- vidually upon user request, and the information transmission and the user requests share the same network __. that being the InterNet.

  A potential intersection of one-way transmis- sion such as traditional TV and broadcast radio and the World Wide Web is a currently unexploited service which is the topic of this paper.

PRIOR ART

Commercial broadcast radio services are well known. Commercial broadcast radio services exist

in FM and AM broadcast bands. FM and AM receivers are employed by listeners to receive broadcast programming.

  In many places paging channels are used for information broadcast. Motorola paging systems can be employed to carry anything from stock quotes to sports scores. Seiko is also experimenting with similar information broadcast through FM sub- band paging systems, including such information services as traffic reports.

WHAT IS MISSING IN PRIOR ART

  What is present in all on-line information services (such as Prodigy, America OnLine, CompuServe, or the World Wide Web) is the linking of information. Currently all wireless digital systems lack any linking of informanon. While an on-line Information system permits the user to navi- gate through a large amount of information, all wireless prior art provides only a collection of individual, unconnected messages which are compatible with the typical concept of email, or compatible with today's display pagers.

  A key attribute of on-line services is the dimen- sion of a 2-way channel where the user may input his navigation selection, and the attribute of a substantial bandwidth whereby the selected information can be quickly received.

WIRELESS OPPORTUNITY

  Paging has developed a 2-w...