Browse Prior Art Database

Inexpensive Personal Digital Assistant

IP.com Disclosure Number: IPCOM000115386D
Original Publication Date: 1995-Apr-01
Included in the Prior Art Database: 2005-Mar-30
Document File: 2 page(s) / 63K

Publishing Venue

IBM

Related People

Sergeant, RP: AUTHOR

Abstract

A Personal Digital Assistant (PDA) ideally provides a single handheld portable device to allow users to access all types of messages and data (including E-mail, voice mail and personal phone calls). The problem with most of today's products is that their design is data orientated and communications are thus based on the use of data or FAX modems. Typically they do not support voice calls and certainly do not support simultaneous voice and data in ONE call, e.g., "Access an Interactive Voice Response (IVR) Unit, look at E-mail on the screen and reply with a voice mail message", all in one simple call.

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Inexpensive Personal Digital Assistant

      A Personal Digital Assistant (PDA) ideally provides a single
handheld portable device to allow users to access all types of
messages and data (including E-mail, voice mail and personal phone
calls).  The problem with most of today's products is that their
design is data orientated and communications are thus based on the
use of data or FAX modems.  Typically they do not support voice calls
and certainly do not support simultaneous voice and data in ONE call,
e.g., "Access an Interactive Voice Response (IVR) Unit, look at
E-mail on the screen and reply with a voice mail message", all in one
simple call.

      Current low-cost analog telephones equipped with displays and
alpha-numeric keyboards allow text data to be displayed or input
using an interface such as the Analog Display Services Interface
(ADSI).  An important attribute is that during a call the voice
transmission path can be momentarily broken and a burst of data
transmitted for display on the screen of the telephone device.

      The user thus has a line that supports both voice and data
transmission in ONE call.  An ADSI device can be used on any existing
telephone line and used to make normal voice only calls.

      The concept of such an interface may be used in both the wired
analog and mobile wireless environments as the basis for a low cost
Personal Digital Assistant.  For example, a cellular phone equipped
with ADSI technology, a display screen and simple alpha-numeric
keypad would be a low cost Voice enabled PDA.

      PDAs currently on the market are much more expensive than
cellular ph...