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:
Feb. 24, 2015
Filed:
Jul. 09, 2010
Kumi Nishimura, Nagano-ken, JP;
Masatoshi Nakazawa, Nagano-ken, JP;
Kumi Nishimura, Nagano-ken, JP;
Masatoshi Nakazawa, Nagano-ken, JP;
Seiko Epson Corporation, Tokyo, JP;
Abstract
In a communication environment in which multiple virtual port drivers use a single communication port, a communication control method enables a first virtual port driver and a second virtual port driver that is occupying the communication port to communicate through the same communication port. The communication control method includes executing a communication process in which the first virtual port driver emulates a specific communication port in communication with a first device driver to which the first virtual port driver corresponds. At least when the second virtual port driver occupies the communication port, the communication control method executes a communication process in which the first virtual port driver emulates, for the second virtual port driver, the second device driver to which the second virtual port driver corresponds.