Cumputer accessory exhibiting a common input for two separate au

Details Cumputer accessory exhibiting a common input for two separate au Cumputer accessory exhibiting a common input for two separate au

1993-09-13

1995-09-19

Weldon, Ulysses

Computer graphics processing and selective visual display system

Display peripheral interface input device

Cursor mark position control device

345161, 345163, G09G 302

Patent

active

054519837

ABSTRACT:
A home computer system having a single input-output which is modified by a identifying circuit to identify a joystick or a mouse the identifying circuit utilizes potentiometers from the joystick which are connected to monostable circuits. The computer automatically recognizes that a joystick is present due to the triggering of the monostable circuits and the reading of the outputs from those monostable circuits.

REFERENCES:
patent: 4501424 (1985-02-01), Stone et al.
patent: 4588187 (1986-05-01), Dell
patent: 4594586 (1986-06-01), Hosogoo
patent: 4685678 (1987-08-01), Prederiksen
patent: 4779079 (1988-10-01), Hauck
patent: 4782335 (1988-11-01), Gussin
patent: 4816810 (1989-03-01), Moore
IBM Technical Disclosure Bulletin, vol. 24, No. 1A, Jun. 1981, pp. 188-189, New York, US; T. M. Paska: "Device Identification by Test-Signal Duration".

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