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. 12, 2009
Filed:
Apr. 09, 2005
Thomas Newman, Discovery Bay, CA (US);
Thomas Newman, Discovery Bay, CA (US);
Socket Mobile, Inc., Newark, CA (US);
Abstract
High-speed reliable parallel data transmission between a computer and a parallel peripheral is provided by a peripheral controller by way of a virtual parallel UART (VPU). The VPU provides a novel parallel interface for higher speed parallel interface operation. The VPU is included in the peripheral controller along with a conventional RS-232 UART. The peripheral-side interface of the peripheral controller provides full bidirectional handshaking with the parallel peripheral. The host-side interface of the peripheral controller provides a legacy serial port compatible interface. Mode information selectively configures operation in either a VPU (parallel) or a UART (serial) mode. Both modes appear identical to software executing on the computer, enabling the use of standard serial I/O drivers without modification, and providing transparent legacy mode compatibility even when the hardware is configured for VPU mode.