Method and apparatus for adapting a data processing port to rece

Details Method and apparatus for adapting a data processing port to rece Method and apparatus for adapting a data processing port to rece

1974-01-18

1976-04-27

Zache, Raulfe B.

Communications: electrical

Digital comparator systems

G06F 304, G05B 108, G04F 308, G05B 1928

Patent

active

039538354

ABSTRACT:
A control unit controls a data processing system port to communicate with different peripheral devices. The control unit determines the type of peripheral device that is being serviced and whether the port apparatus is transmitting or receiving data, and accordingly, activates a program to load a particular count into a counter. Upon reaching a specified count, the counter activates the control unit to control the sampling time of the incoming signal and to determine the interval of time or frequency of the transmitted data information signals.

REFERENCES:
patent: 3577130 (1971-05-01), Rice et al.
patent: 3618037 (1971-11-01), Wollum et al.
patent: 3623010 (1971-11-01), Burkhalter
patent: 3639913 (1972-02-01), Watson
patent: 3676859 (1972-07-01), Hollaway et al.
patent: 3714635 (1973-01-01), Hamilton et al.
patent: 3750107 (1973-07-01), Pyne
patent: 3828325 (1974-08-01), Stafford et al.
patent: 3833888 (1974-09-01), Stafford et al.

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