A touch-sensitive sensor and a method for detecting a position where a user touches a wire or cable are described.
대표청구항▼
1. A method for detecting a position where a user touches a first and a second wire, the first and the second wires being arranged at least partially adjacently, the first wire having a first sonic propagation velocity and the second wire having a second sonic propagation velocity different from the
1. A method for detecting a position where a user touches a first and a second wire, the first and the second wires being arranged at least partially adjacently, the first wire having a first sonic propagation velocity and the second wire having a second sonic propagation velocity different from the first sonic propagation velocity, wherein the method comprises: receiving a first acoustic sound signal at the first wire, the first acoustic sound signal being generated by the user touching the first wire,receiving a second acoustic sound signal at the second wire, the second acoustic sound signal being generated by the user touching the second wire,determining the positions where the user touches the first and second wires based on the first acoustic sound signal and the second acoustic sound signal, respectively. 2. The method according to claim 1, wherein the first acoustic sound signal is received at an end of the first wire, andthe second acoustic sound signal is received at an end of the second wire. 3. The method according to claim 1, wherein determining the positions where the user touches the wires comprises determining a time difference between receiving the first acoustic sound signal and the second acoustic sound signal. 4. The method according to claim 1, wherein determining the positions where the user touches the wires comprises determining a phase difference between the first acoustic sound signal and the second acoustic sound signal. 5. The method according to claim 1, wherein determining the positions where the user touches the wires comprises correlating the first acoustic sound signal and the second acoustic sound signal. 6. The method according to claim 1, wherein at least one of the first and second wires is made of plastic. 7. The method according to claim 1, wherein at least one of the first and second wires is made of metal. 8. The method according to claim 1, wherein the first wire is made of plastic and the second wire is made of metal. 9. A method for detecting a position where a user touches a wire, wherein the method comprises: receiving a first acoustic sound signal at a first predetermined position of the wire, the first acoustic sound signal being generated by the user touching the wire,receiving a second acoustic sound signal at a second predetermined position of the wire, the second acoustic sound signal being generated by the user touching the wire,determining the first and second predetermined positions where the user touches the wire based on the first acoustic sound signal and the second acoustic sound signal, respectively. 10. The method according to claim 9, wherein determining the positions where the user touches the wire comprises determining a time difference between receiving the first acoustic sound signal and the second acoustic sound signal. 11. The method according to claim 9, wherein determining the positions where the user touches the wire comprises determining a phase difference between the first acoustic sound signal and the second acoustic sound signal. 12. The method according to claim 9, wherein determining the positions where the user touches the wire comprises correlating the first acoustic sound signal and the second acoustic sound signal. 13. The method according to claim 9, wherein the wire is made of plastic. 14. The method according to claim 9, wherein the wire is made of metal. 15. A touch-sensitive sensor, comprising: a first wire having a first sonic propagation velocity,a second wire having a second sonic propagation velocity different from the first sonic propagation velocity, wherein the first wire and the second wire are arranged at least partially adjacently,a first acoustic sensor coupled to the first wire and adapted to receive a first acoustic sound signal from the first wire, wherein the first acoustic sound signal is generated by a user touching the first wire,a second acoustic sensor coupled to the second wire and adapted to receive a second acoustic sound signal from the second wire, wherein the second acoustic sound signal is generated by the user touching the second wire, anda processing unit coupled to the first acoustic sensor and the second acoustic sensor and adapted to determine positions where the user touches both the first wire and the second wire from the first and second acoustic sound signals, respectively. 16. The touch-sensitive sensor according to claim 15, wherein at least one of the first and second acoustic sensors comprises a piezoelectric sensor. 17. The touch-sensitive sensor according to claim 16, wherein the piezoelectric receiver comprises at least one of a piezoelectric ceramic or a piezoelectric plastic. 18. The touch-sensitive sensor according to claim 15, wherein the wires are arranged in parallel in an accessory cable for connecting a mobile device to an accessory. 19. The touch-sensitive sensor according to claim 18, wherein the accessory comprises at least one of a microphone, a headphone or a charger. 20. The touch-sensitive sensor according to claim 18, wherein the mobile device comprises a device selected from the group consisting of a mobile phone, a personal digital assistant, a mobile navigation system, a mobile media player, and a mobile computer. 21. The touch-sensitive sensor according to claim 18, wherein at least one protrusion is arranged on at least one of the first and second wires. 22. A touch-sensitive sensor comprising: a wire,a first acoustic sensor coupled to a first predetermined position of the wire and adapted to receive a first acoustic sound signal from the wire, wherein the first acoustic sound signal is generated by a user touching the wire,a second acoustic sensor coupled to a second predetermined position of the wire and adapted to receive a second acoustic sound signal from the wire, wherein the second acoustic sound signal is generated by the user touching the wire, anda processing unit coupled to the first acoustic sensor and the second acoustic sensor and adapted to determine positions where the user touches the wire from the first and second acoustic sound signals, respectively. 23. The touch-sensitive sensor according to claim 22, wherein the wire is arranged in an accessory cable for connecting a mobile device to an accessory. 24. The touch-sensitive sensor according to claim 23, wherein the accessory comprises at least one of a microphone, a headphone or a charger. 25. The touch-sensitive sensor according to claim 23, wherein the mobile device comprises a device selected from the group consisting of a mobile phone, a personal digital assistant, a mobile navigation system, a mobile media player, and a mobile computer.
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이 특허에 인용된 특허 (3)
Kent, Joel C.; Gomes, Paulo I.; Adler, Robert, Acoustic touch sensor.
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