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. 05, 2007
Filed:
Apr. 02, 2002
Erik Carlson, Nesuddtangen, NO;
Svein Johannesson, Oslo, NO;
Jan Endresen, Asker, NO;
Ralph Sjöberg, Västerås, SE;
Erik Carlson, Nesuddtangen, NO;
Svein Johannesson, Oslo, NO;
Jan Endresen, Asker, NO;
Ralph Sjöberg, Västerås, SE;
ABB AB, Västerås, SE;
Abstract
A communication system for safe wireless control of an maneuverable object. A control unit includes an operator for operating the object and a receiver for receiving wireless information. A portable operating unit has a transmitter for transmitting wireless information. The information is divided in time slots, each including a data package. The receiver includes a detector for detecting in a time part of a time slot the presence of the data package and a calculator for calculating upon a reception failure the number of time parts having no presence of the data package following a time slot with presence of the data package. The control unit exercises a control command when a data package with a correct information has been received within a number of time parts just exceeding a full time slot.