Mobile terminal
First Claim
1. A mobile terminal comprising:
- a main body comprising a wireless communication module;
a wireless keypad configured to operate in a tactile manner in order to input information via the main body; and
a driving unit configured to control the wireless keypad using power of the main body,wherein the driving unit comprises;
a first electrode located in the main body and a second electrode located in the wireless keypad;
an electric field formation unit located in the main body and configured to apply voltage to the first electrode to generate an electric field between the first and second electrodes; and
a controller located in the main body and configured to detect information related to a touch applied to the wireless keypad based on a change in the electric field between the first and second electrodes generated by the touch,wherein the wireless keypad comprises a touch pad having a plurality of conductive patterns connected to the second electrode for detecting the touch, andwherein each of the plurality of conductive patterns is connected to one of a plurality of resistors each having a different length such that each of the plurality of conductive patterns has a different impedance value.
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Accused Products
Abstract
A mobile terminal includes: a terminal main body having a wireless communication module; a wireless keypad configured to input information to the terminal main body and operating in a tactile manner; and a driving unit configured to operate the wireless keypad by using power of the terminal main body, wherein the driving unit includes: first and second electrodes mounted in the terminal main body and the wireless keypad; an electric field formation unit provided in the terminal body and applying voltage to the first electrode to form an electric field between the first and second electrodes; and a controller mounted in the terminal body and detecting information regarding a touch applied to the wireless keypad based on a change in the electric field generated by a touch applied to the wireless keypad.
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Citations
24 Claims
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1. A mobile terminal comprising:
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a main body comprising a wireless communication module; a wireless keypad configured to operate in a tactile manner in order to input information via the main body; and a driving unit configured to control the wireless keypad using power of the main body, wherein the driving unit comprises; a first electrode located in the main body and a second electrode located in the wireless keypad; an electric field formation unit located in the main body and configured to apply voltage to the first electrode to generate an electric field between the first and second electrodes; and a controller located in the main body and configured to detect information related to a touch applied to the wireless keypad based on a change in the electric field between the first and second electrodes generated by the touch, wherein the wireless keypad comprises a touch pad having a plurality of conductive patterns connected to the second electrode for detecting the touch, and wherein each of the plurality of conductive patterns is connected to one of a plurality of resistors each having a different length such that each of the plurality of conductive patterns has a different impedance value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16)
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15. A mobile terminal comprising:
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a first body comprising a wireless communication module; a second body connected to the first body and configured to be movable relative to the first body; a touch input unit located on the second body and configured to operate in a tactile manner; and a driving unit configured to control the touch input unit by using power of the first body, wherein the driving unit comprises; a first electrode located in the first body and a second electrode located in second body; an electric field formation unit located in the first body and configured to apply voltage to the first electrode to form an electric field between the first and second electrodes; and a controller mounted in the first body and configured to detect information related to a touch applied to the touch input unit based on a change in the electric field between the first and second electrodes generated by the touch, wherein the touch input unit comprises a touch pad having a plurality of conductive patterns connected to the second electrode for detecting the touch, and wherein each of the plurality of conductive patterns is connected to one of a plurality of resistors each having a different length such that each of the plurality of conductive patterns has a different impedance value. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
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Specification