Title: Digital joystick control interface system for video games and the like

Abstract: A digital joystock is interfaced to a video game by utilizing diodes for isolation and providing means for strobing the digital joystick. In this manner, the number of conductors required in the cable coupling the digital joystick to the video game circuitry is significantly reduced. In one embodiment, a matrix-type keyboard is included in the remote control unit without adding a significant number of additional conductors. Furthermore, the multiplexer ordinarily required to couple the conductors from the digital joystick and the matrix keyboard is eliminated by this technique.

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Inventors: Burson, David C. (Garland, TX, US)

Application Number: 785145
Filing Date: 1977-04-06
Publication_date: 1979-02-27
Assignee: Texas Instruments Incorporated (Dallas, TX)
Primary Class(es): 345/161 463/38
Other Classes:
US Patent Ref:

3389404	Jun, 1968	Koster	364/200.
3453384	Jul, 1969	Donner et al.	340/324.
3541541	Nov, 1970	Engelbart	340/324.
3562415	Feb, 1971	Michels et al.	340/324.
3772597	Nov, 1973	Stover	340/365.
3886528	May, 1975	Irani et al.	364/900.
3982236	Sep, 1976	Kafafian	340/365.

Other Refs:
Primary Examiner: Curtis, Marshall
Assistant Examiner:
Attorney: Sadacca; Stephen S., Grossman; Rene