Unidirectional USB interface circuit

Details Unidirectional USB interface circuit Unidirectional USB interface circuit

2008-07-07

2010-11-23

Phan, Raymond N (Department: 2111)

Electrical computers and digital data processing systems: input/

Intrasystem connection

Bus interface architecture

C710S313000, C710S031000

Reexamination Certificate

active

07840742

ABSTRACT:
A circuit interfaced between a first USB host and a second USB host for providing unidirectional transmission of data signals from the first USB host to the second USB host is provided. A first converter circuit is operable to receive data signals from the first USB host and convert them from a USB protocol to a second communications protocol. A second converter circuit is operable to receive the converted data signals from the first converter circuit and convert them from the second communications protocol to the USB protocol for transmission to the second USB host. The first and second converter circuits are electrically connected to each other in such a manner as to provide a transmission path from the first USB host to the second USB host and to disable a transmission path from the second USB host to the first USB host.

REFERENCES:
patent: 6710701 (2004-03-01), Leatherman
patent: 6973581 (2005-12-01), Chung
patent: 7077314 (2006-07-01), Johnson
patent: 7080779 (2006-07-01), Cummings
patent: 7162566 (2007-01-01), Lin
patent: 7344071 (2008-03-01), Cummings
patent: 7464874 (2008-12-01), Donner
patent: 7523243 (2009-04-01), Bohm et al.
patent: 7566006 (2009-07-01), Cummings
patent: 7627708 (2009-12-01), Bohm et al.
patent: 2001/0034640 (2001-10-01), Chaum
patent: 2004/0000587 (2004-01-01), Shibota
patent: 2004/0236890 (2004-11-01), Engler
patent: 2005/0047436 (2005-03-01), Ohata
patent: 2005/0154799 (2005-07-01), Feng et al.
patent: 2005/0269406 (2005-12-01), Neff
patent: 2006/0059293 (2006-03-01), Wurzburg et al.
patent: 2006/0265540 (2006-11-01), Mass et al.
patent: 2007/0162666 (2007-07-01), Ise
patent: 2007/0204093 (2007-08-01), Wang
patent: 2008/0201501 (2008-08-01), Partani et al.
patent: 2009/0240852 (2009-09-01), Gou
United States Election Assistance Commission, “2005 Voluntary Voting System Guidelines: vol. I: Version 1.0” [online], Dec. 2005, pp. 1-228, [retrieved on Nov. 7, 2008] Retrieved from the Internet: <URL: http://www.eac.gov/voting%20systems/docs/vvsgvolumei.pdf/attachment—download/file>.
United States Election Assistance Commission, “2005 Voluntary Voting System Guidelines: vol. II: Version 1.0” [online], Dec. 2005, pp. 1-146, [retrieved on Nov. 7, 2008] Retrieved from the Internet: <URL: http://www.eac.gov/voting%20systems/docs/vvsgvolume—ii.pdf/attachment—download/file>.
United States Election Assistance Commission, “2005 Voluntary Voting System Guidelines: vol. I: Version 1.0” [online], Dec. 2005, [retrieved on Nov. 7, 2008] Retrieved from the Internet: <URL: http://www.eac.gov/voting%20systems/docs/vvsgvolumei.pdf/attachment—download/file>, Section 3.1.6 on p. 52, Section 7.4.1 on pp. 118, Section 7.4.6 on pp. 123-124, and Section C.4 on pp. C-12 and C-13.
United States Election Assistance Commission, “2005 Voluntary Voting System Guidelines: vol. I: Version 1.0” [online], Dec. 2005, [retrieved on Nov. 7, 2008] Retrieved from the Internet: <URL: http://www.eac.gov/voting%20systems/docs/vvsgvolumei.pdf/attachment—download/file>, Section 7.4.6.(3) on p. 124.
Future Technology Devices International Ltd., “FT232R USB UART IC Datasheet Version 2.01”, Document No. FT—000053, pp. 1-40, copyright 2008.
Lakeview Research, Jan Axelson, “USB Complete. Second Edition. Everything You Need to Develop Custom USB Peripherals”, Entire book, 2001, Madison, WI.
Lakeview Research, Jan Axelson, “USB Complete. Second Edition. Everything You Need to Develop Custom USB Peripherals”, pp. 21-38 (Chapter 2); pp. 39-69 (Chapter 3) and pp. 473-496 (Chapter 21), 2001, Madison, WI.
USB 2.0 Specification, USB Implementers Forum, Inc., Retrieved from the Internet: <URL: http://www.usb.org/developers/docs>.

Affiliated with

Also associated with

Rating

Unidirectional USB interface circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Unidirectional USB interface circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Unidirectional USB interface circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4242249