Ericsson Gmbh

Sony Ericsson Mobile Communications Ab

Fred P Nading, Jr

John W Northcutt

Brian David Miller

Tina M Lee

Thomas J Ambrose

Stanley G Disbrow, Jr

Brett S Delong

Patrick D Hartzell

A link performance analysis (LPA) system is provided for multi-path radio frequency (RF) testing. The LPA system includes a shielded chamber and an antenna positioned in the chamber. A rotating turntable is positioned in the chamber and spaced apart from the antenna. A rotating screen is positioned in the chamber between the antenna and the rotating turntable. A plurality of stationary screens are spaced apart from and surrounding the rotating turntable. Related methods and computer program products are also provided.

Systems, methods, and computer program products for determining performance of portable electronic devices

The present invention entails a battery identification system to be utilized by cellular telephones, battery chargers, and other electrical devices for identification of the battery types employed within such devices. The battery identification system comprises a battery type identification circuit that includes one or more input switches that are coupled to a voltage divider network that is made up of a series of voltage divider segments. Each voltage divider segment is designed to produce a signal that is indicative of the on/off state of a particular input switch. To actuate the input switches, the employed battery is provided with one or more switch actuators, where the position and spacing of the switch actuators on the battery in effect uniquely identifies the battery type. Various switching and actuating configurations are contemplated, including mechanical, galvanic, magnetic, and optical systems.

Battery identification system

Growing community of inventors

Cary, NC, United States of America

Fred P Nading, Jr