| US 7,562,459 B2 | ||
| Method for entering commands and/or characters for a portable communication device equipped with a tilt sensor | ||
| Xavier Fourquin, Sevres (France); and Nicolas Balley, Paris (France) | ||
| Assigned to TCL Communication Technology Holdings, Ltd., Hong Kong (China) | ||
| Filed on Jan. 05, 2007, as Appl. No. 11/649,885. | ||
| Claims priority of application No. 06100130 (EP), filed on Jan. 06, 2006. | ||
| Prior Publication US 2007/0180718 A1, Aug. 09, 2007 | ||
| Int. Cl. G01C 9/06 (2006.01) | ||
| U.S. Cl. 33—366.11 [702/85; 702/150] | 4 Claims |
| 1. A method for entering commands and/or characters for a portable communication device equipped with an input device comprising
a tilt sensor, said method comprising the steps of:
determining a motion of said portable communication device through measurements of said tilt sensor calculated in reference
to a neutral position of said tilt sensor;
deducing from said motion an associated command and/or character,
said method being characterized in that it further comprises a preliminary calibration step triggered by a user of said portable
communication device, consisting in defining said neutral position as being the current position of the sensor at the time
of triggering said calibration step.
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