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

公开(公告)号：CA1024654A

公开(公告)日：1978-01-17

申请号：CA203406

申请日：1974-06-25

Applicant: IBM

Inventor： ALLMON DWIGHT G ,  LEE PEDRO ,  COKER CHARLES W JR

IPC: H03M5/12 ,  G06K7/016 ,  G06K7/10 ,  G11B20/14 ,  H04L25/49 ,  G11B5/09

Abstract: The advantages of Retrospective Pulse Modulation (RPM) decoding circuitry obtain as well for decoding information recorded in accordance with Pulse Rate Modulation (PRM) with this translating logical circuitry. Strobe pulse converting subcircuitry is arranged for detecting RPM impulses coinciding with PRM strobe impulses and inhibiting all other RPM Decoded (RPMD) strobe impulses. Other subcircuitry is arranged for translating RPMD data resulting from RPM scanning coding into (true) decoded PRM data. The subcircuits are integrated to take advantage of the inherent characteristics of the two codes for achieving the simplest circuit arrangements. A few conventional latching and gating circuits suffice for many applications. Further subcircuitry is arranged for automatically switching the translating logical circuitry for selectively decoding PRM and RPM coding without requiring the operator's attention.

公开(公告)号：CA1052905A

公开(公告)日：1979-04-17

申请号：CA211527

申请日：1974-10-16

Applicant: IBM

Inventor： COKER CHARLES W JR ,  HICKOX THOMAS A ,  LYNOTT JOHN J ,  O'ROURKE THOMAS F

IPC: G06K1/12 ,  G06K7/016 ,  G11B15/18

Abstract: MANUAL DRIVE TRANSDUCING CONTROL SYSTEM Apparatus for recording information on a manually actuated card wherein the recording of data on a designated portion of the card is synchronized with the card movement by timing signal generation equipment which moves in relationship to the card and provides the recording control pulses.