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Acoustic Coupler With Automatic Answering and Dialing Feature

IP.com Disclosure Number: IPCOM000043346D
Original Publication Date: 1984-Aug-01
Included in the Prior Art Database: 2005-Feb-04
Document File: 2 page(s) / 26K

Publishing Venue

IBM

Related People

Brewer, JA: AUTHOR [+2]

Abstract

A modem is shown in the figure which is acoustically coupled and has an automatic answering and automatic dialing feature. Acoustic couplers are low speed modem devices used to attach a computer to the public telephone lines. Using an acoustic coupler is generally a manual operation. The telephone must be manually dialed and manually answered and the heads must be manually placed on the acoustic cups of the coupler before the link can be established. It would be preferable to have an acoustic coupler which can automatically answer and dial rather than require the manual intervention of an operator. The acoustic coupler shown in the figure contains a speaker, a microphone, a pickup coil and a solenoid. The telephone sits on top of the coupler as shown.

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Acoustic Coupler With Automatic Answering and Dialing Feature

A modem is shown in the figure which is acoustically coupled and has an automatic answering and automatic dialing feature. Acoustic couplers are low speed modem devices used to attach a computer to the public telephone lines. Using an acoustic coupler is generally a manual operation. The telephone must be manually dialed and manually answered and the heads must be manually placed on the acoustic cups of the coupler before the link can be established. It would be preferable to have an acoustic coupler which can automatically answer and dial rather than require the manual intervention of an operator. The acoustic coupler shown in the figure contains a speaker, a microphone, a pickup coil and a solenoid. The telephone sits on top of the coupler as shown. Located in the base of the coupler is a coil of wire which is the pickup coil. When the telephone rings, the telephone ringer will generate a magnetic field which may be detected by the pickup coil. When the telephone is placed on top of the coupler and the handset is placed on the acoustic cups, the support arm is aligned over the switch hook such that the solenoid can be operated to activate or deactivate the switch hook button. Normally the solenoid causes the switch hook button to be depressed. However, when the phone rings and the signal is detected by the pickup coil, the solenoid is energized and the telephone is automatically answered. The acousti...