Browse Prior Art Database

REMOVABLE KEYPAD FROM TELEPHONY DEVICE

IP.com Disclosure Number: IPCOM000008995D
Original Publication Date: 1999-Jan-01
Included in the Prior Art Database: 2002-Jul-30
Document File: 3 page(s) / 77K

Publishing Venue

Motorola

Related People

Alan Robinson: AUTHOR

Abstract

Often DTMF responses are needed while on- line with a handheld telephony device (cellular or cordless phone). In order to enter these responses the device must be removed from the ear, moved within the line of sight and DTMF keypad digits pressed. Due to the movement and rapid response of the device connected at the far end, the next selection on the menu is often missed. To avoid this, a handheld phone could provide a removable keypad to allow the user to keep the earpiece and microphone stationary while entering DTMF key- pad responses.

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MOTOROLLI Technical Developments

REMOVABLE KEYPAD FROM TELEPHONY DEVICE

by Alan Robinson

  Often DTMF responses are needed while on- line with a handheld telephony device (cellular or cordless phone). In order to enter these responses the device must be removed from the ear, moved within the line of sight and DTMF keypad digits pressed. Due to the movement and rapid response of the device connected at the far end, the next selection on the menu is often missed. To avoid this, a handheld phone could provide a removable keypad to allow the user to keep the earpiece and microphone stationary while entering DTMF key- pad responses.

keypad portion would remove (at the user's discre- tion) and rest in the palm of the user's hand, thus making DTMF entry simile.

  The keypad could be;,configured to remove via a button that triggers a release mechanism or a tab that locks the pad in place until pressed. The data that streams from the keypad to the handset would be very small and unidirectional. The data could be transmitted via wires contained in a retractable cord, low power, low range RF or IR. Figures 1 through 3 depict the keypad connectivity to the handset.

The physical configuration of such a device would be identical to the devices today. But, the

-Ear Piece

T Keypad

D ++Mic

Today

144 January 1999

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Technical Developments

i

open cavity

(left by keypad)

Fig. 1 Wired Interface

,

IR Recetda...