Card reader-data link processor

Details Card reader-data link processor Card reader-data link processor

1980-09-09

1983-07-05

Chan, Eddie P.

Boots, shoes, and leggings

G06F 304

Patent

active

043922074

ABSTRACT:
A peripheral-controller for a card reader is designated as a Card Reader-Data Link Processor and is used for controlling and reading data from a card reader for later transmittal to a main host computer. The peripheral controller is made of a slide-in Common Front End card (CFE) and a Peripheral Dependent Board (PDB) card. A PROM control store in the Common Front End provides micro-code operators for the Peripheral Dependent Board circuitry to execute. A memory buffer in the CFE receives and stores both raw data from the card reader and also translated data processed by circuitry in the PDB which can provide selected data formats as ordered by the main host system.

REFERENCES:
patent: 3725871 (1973-04-01), Heuttner et al.
patent: 4124888 (1978-11-01), Washburn
patent: 4162520 (1979-07-01), Cook et al.
patent: 4189769 (1980-02-01), Cook et al.
patent: 4200930 (1980-04-01), Rawlings et al.
patent: 4261033 (1981-04-01), Lemay et al.
patent: 4290106 (1981-09-01), Catiller et al.
patent: 4313162 (1982-01-01), Baun et al.
patent: 4322792 (1982-03-01), Baun

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