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. 06, 2003
Filed:
May. 28, 1999
Ari Vaisanen, Ruutana, FI;
Pekko Orava, Tampere, FI;
Nokia Corporation, Espoo, FI;
Abstract
Antenna switching circuitry in a multi-transceiver mobile terminal , which features a first switching unit (SW ) which controllably couples a first transceiver port (P ) to either a first antenna port (P ) or a second antenna port (P ); and a second switching unit (SW ) which controllably couples the second antenna port (P ) to either the first transceiver port (P ), through the first switching unit (SW ), or to an input/output port (P ) of a second transceiver ( ). According to this scheme, the second antenna port is coupled to the input/output port of the second transceiver ( ) in a mode in which the second transceiver ( ) is operational, the first transceiver port (P ) being decoupled from the second antenna port at this time, wherein the first transceiver port is coupled to the first antenna port and the input/output port of the second transceiver ( ) is decoupled from the second antenna port, when the first transceiver is in a transmit mode, and wherein the first transceiver port is coupled to either of the first and second antenna ports, when the first transceiver ( ) is in a receiving mode and the input/output port of the second transceiver ( ) is decoupled from the second antenna port.