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:
Nov. 27, 2001
Filed:
Jul. 08, 1998
Intel Corporation, Santa Clara, CA (US);
Abstract
A method is presented that may reduce the number of I/O transactions needed to transfer data between a host device and peripheral device over a parallel port. According to one embodiment, only two I/O transactions are needed to transfer a byte of data as opposed to the eight I/O transactions need in the IEEE 1284-1994 standard. During the two I/O transactions (e.g., transferring data from the host device to the peripheral device), the host device places the data on the data signal lines of the parallel port and toggles a signal on one of the control signal lines. In response, the peripheral device reads the data from the parallel port. Additional bytes can be sent by placing the data onto the port and toggling the signal on the same control signal line. Using this method, a data rate of approximately 4 Mega bits per second may be achieved.