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:
Mar. 16, 2010
Filed:
Feb. 27, 2004
Ehassan Taghizadeh, Minneapolis, MN (US);
Grant B. Edwards, Minneapolis, MN (US);
Kurt Robideau, Zimmerman, MN (US);
Stephen P. Erler, Arden Hills, MA (US);
Ehassan Taghizadeh, Minneapolis, MN (US);
Grant B. Edwards, Minneapolis, MN (US);
Kurt Robideau, Zimmerman, MN (US);
Stephen P. Erler, Arden Hills, MA (US);
Comtrol Corporation, Maple Grove, MN (US);
Abstract
A low latency peripheral device sharing system has a host computer with an operating system, a kernel memory buffer, applications, device specific drivers, and a peripheral server driver. The server driver intercepts function calls invoking the local serial ports, and passes standard serial data from the application to a local area network. A device server on the local area network reads the data using a hybrid read block (semi-blocking read), and writes the data to the FIFO registers of the serial device and the remaining data to a queue for the serial device. Finally, the device server times the serial data and returns an intercharacter interval timer flag to the host computer to terminate a read operation.