05797089 is referenced by 255 patents and cites 11 patents.

A personal communications terminal (PCT) in a case having a first half hingedly connected to a second half. The PCT operates in an open and a closed position and comprises a mobile telephone unit and a personal digital assistant (PDA) unit electronically connected to the mobile telephone unit. The PDA unit is a fully functional personal computer. The PDA unit comprises a memory for application software programs, a memory for data, a processor for performing operations with the data and the application programs, a modem for passing data between the PDA unit and the mobile telephone unit, and a mobile data interface for passing data between the PDA unit and the mobile telephone unit without utilizing the modem. When the PCT is in the open position, it forms two interior faces which include a PDA display screen on one face and a full alpha-numeric keyboard on the other face. The PCT may be operated as a standard wireless telephone, as a personal computer, or in an integrated mode for FAX, wireless data transfer, or sending and receiving short message service (SMS) messages.

Title
Personal communications terminal having switches which independently energize a mobile telephone and a personal digital assistant
Application Number
8/524867
Publication Number
5797089
Application Date
September 7, 1995
Publication Date
August 18, 1998
Inventor
Nam D Nguyen
Quebec
CA
Agent
Smith & Catlett P C
Assignee
Telefonaktiebolaget LM Ericsson
SE
IPC
H04M 11/00
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