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:
Aug. 22, 2000
Filed:
Jun. 02, 1998
Akihiro Yokoi, Nihonbashi Hamacho 3-chome, Chuo-ku, Tokyo, JP;
Other;
Abstract
It is an object to provide a game machine having communication terminals wherein an integrated circuit portion is reliably protected from static electricity or a surge voltage input through the communication terminals without using communication terminals in a special configuration or providing an openable cap while reducing the overall cost. There is provided an integrated circuit portion 3 which includes communication terminals TA1 and TA2 provided such that they are exposed at one side of a game machine main body 1 and which transmits and receives data to and from another game machine through the communication terminals when the communication terminals TA1 and TA2 are connected to the communication terminals of another game machine. A protection circuit is provided between the integrated circuit portion 3 and communication terminals TA1 and TA2. This protection circuit includes a first diode DD1 for bypassing a current produced by a positive surge voltage and a second diode DD2 for bypassing a current produced by a negative surge voltage. The first diode DD1 and the second diode DD2 are series-connected in the forward direction, and the connecting point is connected to the communication terminals.