# US 10,310,661 B2 · Hover controlling device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,310,661 B2 - Document ID: US10310661B2 - Status: Granted - Kind: B2 - Application number: 14/979,490 - Filed: 2015-12-27 - Published: 2016-06-30 - Granted: 2019-06-04 - Earliest claimed: 2014-12-31 - Assignees: Tsinghua University; Hon Hai Precision Industry Co., Ltd. - Applicants: Tsinghua University; Hon Hai Precision Industry Co., Ltd. - Inventors: Xin-He Wang; Dong-Qi Li; Jiang-Tao Wang; Wen-Yun Wu; Yu-Jun He; Peng Liu; Qing-Yu Zhao; Kai-Li Jiang; Shou-Shan Fan - Web page: https://patentgrep.com/patent/US10310661B2 ## CPC - G06F 3/0416: {Control or interface arrangements specially adapted for digitisers} - G06F 3/047: using sets of wires, e.g. crossed wires - G06F 2203/04101: 2.5D-digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface and also measures the distance of the input means within a short range in the Z direction, possibly with a separate measurement setup - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A hover controlling device includes a sensing unit and a hover control unit. The sensing unit includes a plurality of first electrostatic sensing elements, a plurality of first electrodes, a plurality of second electrostatic sensing elements, and a plurality of third electrodes located on a substrate. Each first electrostatic sensing element and each second electrostatic sensing element include a single walled carbon nanotube or a few-walled carbon nanotube. The resistances of the plurality of first electrostatic sensing elements and the plurality of second electrostatic sensing elements are changed in process of a sensed object with electrostatic near, but does not touch the plurality of first electrostatic sensing elements and the plurality of second electrostatic sensing elements. The hover control unit is electrically connected to the plurality of first electrostatic sensing elements and the plurality of second electrostatic sensing elements. ## Claims ### Claim 1 A hover controlling device, comprising: a sensing unit comprising: a plurality of first electrostatic sensing elements spaced from each other along a same direction, wherein each of the plurality of first electrostatic sensing elements comprises a single walled carbon nanotube or a few-walled carbon nanotube used for sensing static electricity, and a resistance of the single walled carbon nanotube or the few-walled carbon nanotube is variable; and a plurality of first electrodes being metal electrodes, wherein each of the plurality of first electrostatic sensing elements has a first end and a second end opposite to the first end, one of the plurality of first electrodes is in direct contact with the first end, and another one of the plurality of first electrodes is in direct contact with the second end; and a hover control unit coupled to the plurality of first electrostatic sensing elements. ### Claim 2 (depends on 1) The hover controlling device of claim 1, wherein the number of walls of the few-walled carbon nanotube ranges from two to six. ### Claim 3 (depends on 1) The hover controlling device of claim 1, wherein a distance between two adjacent first electrostatic sensing elements is in a range from about 2 millimeters to about 2 centimeters. ### Claim 4 (depends on 1) The hover controlling device of claim 1, wherein the hover control unit determines a position coordinate of a sensed object by sensing a distribution of current values of the plurality of first electrostatic sensing elements. ### Claim 5 (depends on 1) The hover controlling device of claim 1, wherein the single walled carbon nanotube or the few-walled carbon nanotube has a diameter of less than 5 nanometers, and a length of greater than 1 centimeter. ### Claim 6 (depends on 1) The hover controlling device of claim 1, wherein the plurality of first electrostatic sensing elements is parallel to each other. ### Claim 7 (depends on 1) The hover controlling device of claim 1, wherein a distance between a sensed object and the hover controlling device is in a range from about 0.5 centimeters to about 1 centimeter. ### Claim 8 (depends on 1) The hover controlling device of claim 1, wherein a diameter of the single walled carbon nanotube or the few-walled carbon nanotube is in a range from about 2 nanometers to about 5 nanometers. ### Claim 9 (depends on 1) The hover controlling device of claim 1, wherein the hover control unit comprises a circuit control element and a current detect element. ### Claim 10 (depends on 9) The hover controlling device of claim 9, wherein a direct voltage is applied to the plurality of first electrostatic sensing elements by the circuit control element, and the current detect element detect currents of the plurality of first electrostatic sensing elements. ### Claim 11 (depends on 1) The hover controlling device of claim 1, wherein the resistance of the single walled carbon nanotube or the resistance of the few-walled carbon nanotube changes when a sensed object with static electricity is close to but does not touch the hover controlling device. ### Claim 12 A hover controlling device, comprising: a sensing unit comprising: a plurality of first electrostatic sensing elements spaced from each other along a same direction, wherein each of the plurality of first electrostatic sensing elements comprises a single walled carbon nanotube or a few-walled carbon nanotube used for sensing static electricity, and a resistance of the single walled carbon nanotube or the few-walled carbon nanotube is variable; a plurality of first electrodes, wherein each of the plurality of first electrostatic sensing elements has a first end and a second end opposite to the first end, one of the plurality of first electrodes is in direct contact with the first end, and another one of the plurality of first electrodes is in direct contact with the second end; and a hover control unit comprising a circuit control element and a current detect element coupled to the plurality of first electrostatic sensing elements. ### Claim 13 (depends on 12) The hover controlling device of claim 12, wherein the number of walls of the few-walled carbon nanotube ranges from two to six. ### Claim 14 (depends on 12) The hover controlling device of claim 12, wherein a distance between two adjacent first electrostatic sensing elements is in a range from about 2 millimeters to about 2 centimeters. ### Claim 15 (depends on 12) The hover controlling device of claim 12, wherein the plurality of first electrostatic sensing elements is parallel to each other. ### Claim 16 (depends on 12) The hover controlling device of claim 12, wherein a distance between a sensed object and the hover controlling device is in a range from about 0.5 centimeters to about 1 centimeter. ### Claim 17 (depends on 12) The hover controlling device of claim 12, wherein a diameter of the single walled carbon nanotube or the few-walled carbon nanotube is in a range from about 2 nanometers to about 5 nanometers. ### Claim 18 (depends on 12) The hover controlling device of claim 12, wherein the resistance of the single walled carbon nanotube or the resistance of the few-walled carbon nanotube changes when a sensed object with static electricity is close to but does not touch the hover controlling device.