The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 1986
Filed:
Jun. 27, 1984
George H Dell, Morton Grove, IL (US);
Wico Corporation, Niles, IL (US);
Abstract
A game port expander for a video game input port includes a plurality of first multi-pin ports respectively connectable to four different game controllers, and a second multi-pin port connectable to the input port of a video game. Each game controller has a 'fire control' switch which is connected to a selected pin of the corresponding first port for applying a signal to that port when the switch is actuated. That signal is converted by a decimal-to-binary converter to a binary representation of that first port which is applied to the inputs of a two-bit IC latch. The switch signal is also applied through an OR gate to an RC timing circuit which activates the latch after the signal is present for a predetermined time, to actuate an IC switching circuit which provides an interconnection between predetermined terminals of the second port and the corresponding terminals of the selected one first port.