EP 1405298 A4 20090429 - SYSTEM FOR DISPOSING A PROXIMITY SENSITIVE TOUCHPAD BEHIND A MOBILE PHONE KEYMAT
Title (en)
SYSTEM FOR DISPOSING A PROXIMITY SENSITIVE TOUCHPAD BEHIND A MOBILE PHONE KEYMAT
Title (de)
SYSTEM ZUM ANORDNEN EINES NÄHEEMPFINDLICHEN BERÜHRUNGSFELDES HINTER DER TASTENMATTE EINES MOBILTELEFONS
Title (fr)
SYSTEME PERMETTANT DE PLACER UN PAVE TACTILE A DETECTION DE PROXIMITE EN DESSOUS DU CLAVIER NUMERIQUE D'UN TELEPHONE MOBILE
Publication
Application
Priority
- US 0218055 W 20020606
- US 29641401 P 20010606
Abstract (en)
[origin: WO02100074A2] A proximity-based mutually capacitance-sensitive touchpad that is disposed directly beneath a keypad keymat of a mobile telephone, wherein posts associated with each key pass through a mutually capacitance-sensitive sensor electrode grid of the touchpad such that the keypad posts do not interfere with touchpad detection and tracking of a pointing object that moves along the keypad surface, to thereby enable touchpad data entry, cursor control, and scroll bar control on a display of the mobile telephone, wherein the keypad posts actuate mechanical switches underneath the touchpad.
[origin: WO02100074A2] A proximity-based mutually capacitance-sensitive touchpad (26) that is disposed directly beneath a keypad keymat (22) of a mobile telephone (10), wherein posts (24) associated with each key (20) pass through a mutually capacitance-sensitive sensor electrode grid of the touchpad such that the keypad posts (24) do not interface with touchpad detection and tracking of pointing object that moves along the keypad surface, to thereby enable touchpad data entry, cursor control, and scroll bar control on a display of the mobile telephone, wherein the keypad posts actuate mechanical switches (32) underneath the touchpad.
IPC 1-7
IPC 8 full level
G06F 3/02 (2006.01); G06F 1/16 (2006.01); G06F 3/0354 (2013.01); G06F 3/044 (2006.01); H04B 1/38 (2015.01); H04B 1/3822 (2015.01); H04B 1/3827 (2015.01); H04M 1/02 (2006.01); H04M 1/23 (2006.01); H04M 1/247 (2006.01)
CPC (source: EP KR US)
G06F 1/1616 (2013.01 - EP US); G06F 1/1626 (2013.01 - EP); G06F 1/1647 (2013.01 - EP); G06F 1/1662 (2013.01 - EP); G06F 3/03547 (2013.01 - EP); G06F 3/0445 (2019.05 - EP US); G06F 3/0446 (2019.05 - EP US); H04M 1/23 (2013.01 - EP KR); G06F 2203/04106 (2013.01 - EP); G06F 2203/04112 (2013.01 - EP); H04M 2250/22 (2013.01 - EP)
Citation (search report)
- [PX] EP 1197835 A2 20020417 - NOKIA CORP [FI]
- [X] WO 9805025 A1 19980205 - AIRPOINT CORP [US], et al
- [X] US 5270710 A 19931214 - GAULTIER PHILIPPE [FR], et al
- [A] BURK A: "MOMENTARY SWITCHING ALTERNATIVES FOR KEY PAD AND FRONT PANEL APPLICATIONS", ELECTRO INTERNATIONAL CONFERENCE RECORD, WESTERN PERIODICALS CO, VENTURA, CA, US, vol. 18, 1 January 1993 (1993-01-01), pages 282 - 291, XP000381927
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 02100074 A2 20021212; WO 02100074 A3 20030327; AU 2002316194 A1 20021216; CA 2449447 A1 20021212; CA 2449447 C 20110517; CN 1524257 A 20040825; CN 1524257 B 20100428; EP 1405298 A2 20040407; EP 1405298 A4 20090429; JP 2004535712 A 20041125; JP 4017595 B2 20071205; KR 100647375 B1 20061117; KR 20040018262 A 20040302
DOCDB simple family (application)
US 0218055 W 20020606; AU 2002316194 A 20020606; CA 2449447 A 20020606; CN 02813662 A 20020606; EP 02746474 A 20020606; JP 2003501921 A 20020606; KR 20037015962 A 20031205