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. 20, 2008
Filed:
Apr. 30, 2003
John Deryk Waters, Bath, GB;
James Thomas Edward Mcdonnell, Malmesbury, GB;
Ian Robert Johnson, Bristol, GB;
Simon Haydn Baynham, Cardiff, GB;
John Deryk Waters, Bath, GB;
James Thomas Edward McDonnell, Malmesbury, GB;
Ian Robert Johnson, Bristol, GB;
Simon Haydn Baynham, Cardiff, GB;
Hewlett-Packard Development Company, L.P., Houston, TX (US);
Abstract
Access to a wireless data network to nodes located in a defined operational area is limited by transmitting a network signal within the defined operational area while transmitting a wave that can cause destructive interference with the network signal into a prohibited area adjacent to the defined operational area. The wave that can cause destructive interference is produced by phase and/or amplitude modulating the network signal. The modulation of the network signal includes sweeping the phase and/or amplitude.