Wireless terminal

• US 5,930,725 A
• Filed: 01/29/1998
• Issued: 07/27/1999
• Est. Priority Date: 01/30/1997
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Kornby, Michael
• Primary Examiner(s): Chin, Wellington
• Assistant Examiner(s): Jama, Isaak R.
• Application Number:
  US09/015,329
• Time in Patent Office: 544 Days
• Field of Search: 455/436, 455/550, 455/552, 455/553, 455/557, 455/556, 455/558, 455/559, 375/316, 375/216, 330/51, 370/466, 370/467
• US Class Current: 455/552.1
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

In a wireless terminal adapted to operate according to more than one air interface protocol, processing circuits are provided to process signals received by the terminal or to be transmitted by the terminal according to the respective protocol. One of the processing circuits is chosen to be connected to user interface equipment of the terminal to communicate with that equipment also on behalf of the other processing circuits according to a user interface equipment signal format. The other processing circuits communicate with that one processing circuit via a bus according to a bus signal format. The one processing circuit converts the bus signal format to the user interface equipment signal format and vice versa when the terminal is operating according to the protocol of any of the other processing circuits (2-4).

Claims

1. A wireless terminal adapted to operate according to more than one air interface protocol, comprising user interface equipment common to the protocols, and processing circuits adapted to process signals received by the terminal or to be transmitted by the terminal according to one of the protocols,

wherein one of the processing circuits is connected to said user interface equipment and is adapted to communciate with that equipment according to a first signal format, therefore the other processing circuits are interconnected with said one processing circuit via a bus and are adapted to communicate with that one processing circuit according to a second signal format, and

said one processing circuit is adapted to convert said first signal format to the second signal format and vice versa when the terminal is operating according to the protocol of any of said other processing circuit, wherein the other processing circuits communicate with the user interface equipment via the one processing circuit.