公开(公告)号：US3571799A

公开(公告)日：1971-03-23

申请号：US3571799D

申请日：1969-08-21

Applicant: IBM

Inventor： COKER CHARLES W JR ,  JOHNSON HARRY W ,  PETERSON ROBERT A ,  STALLARD JOHN N

IPC: G06F3/023 ,  G06F3/048 ,  G07F7/12 ,  H04L5/06 ,  G11B5/00 ,  H04M11/00

CPC classification number: H04L5/06 ,  G06F3/0489 ,  G07F7/08

Abstract: A credit authorization terminal for sensing identification data from a magnetic credit card and transmitting the same to a central processor over telephone lines. Also, a keyboard for transmitting variable transaction data. Magnetic data is recorded on the credit card in two modes, only one of said modes being intelligible to the terminal read head. Also, a terminal identification magnetic card. Credit verification or authorization is by voice answerback.

公开(公告)号：CA912453A

公开(公告)日：1972-10-17

申请号：CA912453D

Applicant: IBM

Inventor： PETERSON ROBERT A ,  STALLARD JOHN N ,  JOHNSON HARRY W ,  COKER CHARLES W JR

IPC: G06F3/023 ,  G07F7/08 ,  G11B5/00 ,  H04L5/06 ,  H04M11/00