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1. US20190050058 - Mobile communications device with adaptive friction of the housing

Office
United States of America
Application Number 16165078
Application Date 19.10.2018
Publication Number 20190050058
Publication Date 14.02.2019
Grant Number 10705615
Grant Date 07.07.2020
Publication Kind B2
IPC
G08B 21/00
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
21Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
G06F 3/01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
H04M 1/725
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
72Substation extension arrangements; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selecting
725Cordless telephones
G06F 3/041
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
H04M 1/02
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
02Constructional features of telephone sets
CPC
G06F 3/0414
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
03Arrangements for converting the position or the displacement of a member into a coded form
041Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
0414using force sensing means to determine a position
G06F 3/016
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
3Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
01Input arrangements or combined input and output arrangements for interaction between user and computer
016Input arrangements with force or tactile feedback as computer generated output to the user
H04M 1/0249
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
02Constructional features of telephone sets
0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
0249Details of the mechanical connection between the housing parts or relating to the method of assembly
H04M 1/72569
H04M 1/026
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
MTELEPHONIC COMMUNICATION
1Substation equipment, e.g. for use by subscribers
02Constructional features of telephone sets
0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
026Details of the structure or mounting of specific components
Applicants TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
Inventors Matthew John Lawrenson
Julian Charles Nolan
Agents Rothwell, Figg, Ernst & Manbeck, P.C.
Title
(EN) Mobile communications device with adaptive friction of the housing
Abstract
(EN)

A mobile communications device adjusts a level of friction between a surface of the device and one or more other objects that may be in contact with the device, such as receipts, credit cards, keys, money, the user's hand or fingers, and the like. To adjust the friction, the device first determines its current environmental context, such as whether it is inside the user's pocket or lying on a table surface, for example. Then, based on that context, the device varies a coefficient of friction to increase or decrease the friction between the surface of the device and the surfaces of the other objects. Varying the friction allows a user to grip the device easier and/or reduce the chance that the other objects in contact with the device are also inadvertently removed from the storage location with the device.