Controlling video devices

Details Controlling video devices Controlling video devices

1997-04-01

1999-10-12

Palys, Joseph E.

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

709200, 713400, G06F 1300

Patent

active

059648490

ABSTRACT:
Disclosed is an apparatus for controlling video devices by transmitting RS-422 command strings to the devices comprising, a controller for preparing each RS-422 command string in advance of an execution time at which the command is to be executed; a buffer for storing each RS-422 command string and a respective associated time of execution; and a buffer scanner operable to compare a current time with the execution times of each buffered command and to transmit to the respective video device any commands stored in the buffer for which the associated execution time is the same as or before the current time.

REFERENCES:
patent: 4698770 (1987-10-01), Rattan et al.
patent: 5077552 (1991-12-01), Abbate
patent: 5506932 (1996-04-01), Holmes et al.
patent: 5644355 (1997-07-01), Koz et al.
patent: 5668601 (1997-09-01), Okada et al.
patent: 5748842 (1998-05-01), Holmes et al.
patent: 5867692 (1999-02-01), Bhandari et al.

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