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:
Sep. 17, 2019
Filed:
Nov. 22, 2016
Kabushiki Kaisha Toshiba, Minato-ku, Tokyo, JP;
Motoaki Ando, Ome Tokyo, JP;
TOSHIBA CLIENT SOLUTIONS CO., LTD, Tokyo, JP;
Abstract
In one embodiment, a port connection circuit includes a controller, an input contact, a switch, and a switch control circuit. The controller comprises a first port to selectively switch to an input or output state, a second port configured to output a switch control signal, and a third port configured to detect an event. The input contact is connected to an output contact of an external connector and the third port. The switch is connected between the input contact and the first port. The switch control circuit is configured to close or open the switch based on a voltage of the input contact. The switch control circuit includes a hysteresis circuit to which this voltage is input, and an OR gate that logically adds an output of the hysteresis circuit and a switch control signal from the second port and outputs the result to a control contact of the switch.