Browse Prior Art Database

TIME-STAMPING MESSAGES IN A InFLEXion ANALOG VOICE SYSTEM

IP.com Disclosure Number: IPCOM000008369D
Original Publication Date: 1997-Dec-01
Included in the Prior Art Database: 2002-Jun-11
Document File: 3 page(s) / 129K

Publishing Venue

Motorola

Related People

Terry Sumner: AUTHOR [+2]

Abstract

xIn InFLEXion'" analog voice systems, no current mechanism exists to record the time a message was deposited at the WMG paging terminal, nor is there a mechanism to indicate when a message was trans- mitted, nor is there a message to record when a message was received in an InFLEXionTM pager. The WMG records when the message was deposited, bot does not convey this information along to the subscriber device (pager). Several ways to timestamp a message are described below. In brief, these are: the WMG paging terminal can translate the deposit timestamp into voice and attach it to the message, the over-air protocol can convey this time- stamp or time of transmission, and/or the pager can stamp incoming messages as they are received. Conveying an analog voice timestamp has a peculiar problem associated with it that conveying the time- stamp information digitally does not have.

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MOTOROLA Technical Developments

TIME-STAMPING MESSAGES IN A lnFLEXionTM ANALOG VOICE SYSTEM

by Terry Sumner and Naima Sumner

  xIn InFLEXion'" analog voice systems, no current mechanism exists to record the time a message was deposited at the WMG paging terminal, nor is there a mechanism to indicate when a message was trans- mitted, nor is there a message to record when a message was received in an InFLEXionTM pager. The WMG records when the message was deposited, bot does not convey this information along to the subscriber device (pager). Several ways to timestamp a message are described below. In brief, these are: the WMG paging terminal can translate the deposit timestamp into voice and attach it to the message, the over-air protocol can convey this time- stamp or time of transmission, and/or the pager can stamp incoming messages as they are received. Conveying an analog voice timestamp has a peculiar problem associated with it that conveying the time- stamp information digitally does not have.

'THREE PROCESSES FOR RECORDING AND CONVEYING TIMESTAMPS

  When the voice message is deposited, the date and time are recorded by the terminal (WMG). Occasionally, the message may be marked for future delivery, in which case the time of transmission from

the terminal is the important time. This information can be:

A. Translated into speech by a text-speech processor and appended to the message in audio form.

B. Packaged in the network protocol packet and sent along to the subscriber device in data form.

C. Determined to some extent by the subscriber device in conjunction with the over-air protocol.

I. The synthesized-voice audio form takes more bandwidth on the network and over the air, but is simple and user-friendly.

2. The data form takes much less bandwidth, but requires changes to both the network protocol and the over-air protocol.

3. An alternative for time of receipt stamping is to have the pager take a date and time reading off the air from commonly broadcast information and timestamp the incoming message with a synthesized voice.

Voice Messaae +limstam

A Proposed Time-Stamping Method

I. Mo,"r"ls. 1°C. 1997 16 December1997

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MOTOROLA Technical Developments

  In the preceding figure a text-to-speech convert- er turns the local clock-calendar where the message is deposited at the terminal into analog voice. The peculiar problem associated with InFLEXion'" voice is that only a single segment size is permitted in a message. This segment size is twice the dura- tion of a pitch period, where the pitch period is the inverse of the average pitch frequency of the caller. With the InFLEXionT"' protocol, the voic...