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:
Jun. 18, 2013
Filed:
Feb. 21, 2005
Applicant:
Mikael Willgert, Spånga, SE;
Inventor:
Mikael Willgert, Spånga, SE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/00 (2006.01); G06F 7/00 (2006.01); G08B 29/00 (2006.01); H04B 1/00 (2006.01); H04Q 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for granting access to restricted areas such as computers, doors, vehicles, or other areas to which access by a user is controlled. An access code is transmitted from a central computer via radio waves to a user's radio terminal, such as a mobile telephone. The radio terminal transmits the access code over a short-range radio link to a communication device at the restricted area. The communication device transmits the access code to the central computer, which compares the received code with the code that the computer transmitted to the radio terminal to determine whether access should be granted.