Dismiss
InnovationQ will be updated on Sunday, Oct. 22, from 10am ET - noon. You may experience brief service interruptions during that time.
Browse Prior Art Database

Low Cost Telephone Scanner

IP.com Disclosure Number: IPCOM000084536D
Original Publication Date: 1975-Nov-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 34K

Publishing Venue

IBM

Related People

Coker, CW: AUTHOR [+3]

Abstract

This is a system for transmitting to utilization device 12, data stored in magnetic card 1 over local telephone system 6.

This text was extracted from a PDF file.
At least one non-text object (such as an image or picture) has been suppressed.
This is the abbreviated version, containing approximately 100% of the total text.

Page 1 of 2

Low Cost Telephone Scanner

This is a system for transmitting to utilization device 12, data stored in magnetic card 1 over local telephone system 6.

Hand-held scanner 4 comprises magnetoresistive head 2 and battery powered low-power amplifier 3. As card 1 is scanned, double-frequency encoded data from the card is sensed, amplified, and applied to a data access arrangement or acoustic coupler 5 on the handset transmitter of an in-house telephone system. At receiving location 8, the analog signals from telephone line 6 are amplified at bandpass amplifier 9 and clipped by peak detector 10 to restore the double-frequency signal. This may then be decoded by F/2F-to-BCD demodulator 11, and the output signal applied to device 12.

Response from the receiving station 8 may be generated at automatic answering system 7, which may be a voice answer back arrangement, for transmission to handset speaker 13.

Such a scanner is portable, and easily attached to any local telephone set for use as a data-entry device. Applications include scanning inventory and process cards for manufacturing production control; scanning magnetic documents for controlling document location and work load status; inputting customer orders by salesmen; and interacting with computer data bases without, or in addition to, operating a keyboard.

1

Page 2 of 2

2

[This page contains 2 pictures or other non-text objects]