1. A method for assisting a user performing karaoke, comprising:
receiving the user’s voice signals;
comparing the user’s voice signals with expected voice signals;
determining whether the user is singing on keypitch based on the comparison; and
providing real-time feedback to the user while the user is still performing karaoke.
2. The method defined in claim 1, wherein comparing comprises:
calculating the difference in pitch between the user’s voice signals and the expected voice signals.
3. The method defined in claim 2, wherein the user’s voice signals are based on melodyharmony information from vocals received from the user.
4. The method defined in claim 2, wherein the expected voice signals are based on melodyharmony information from as-recorded music.
5. The method defined in claim 2, wherein the expected voice signals are based on melodyharmony information from vocals of an artist.
6. The method defined in claim 1, wherein providing comprises:
playing audible feedback signals to the user.
7. The method defined in claim 1, wherein providing comprises:
playing positive feedback audible signals when the user is on keypitch; and
playing negative feedback audible signals when the user is off keypitch.
8. A system for assisting a user performing karaoke, comprising control circuitry, an output device and a microphone, wherein the control circuitry comprises processing circuitry and at least one storage device, the control circuitry configured to:
direct the microphone to receive the user’s voice signals;
compare the user’s voice signals with expected voice signals stored in the at least one storage device;
determine whether the user is singing on keypitch based on the comparison; and
direct the output device to provide real-time feedback to the user while user is still performing karaoke.
9. The system defined in claim 8, wherein the control circuitry is further configured to:
calculate the pitch difference between the user’s voice signals and the expected voice signals.
10. The system defined in claim 9, wherein the user’s voice signals are based on melodyharmony information from vocals received from the user.
11. The system defined in claim 9, wherein the expected voice signals are based on melodyharmony information extracted from as-recorded music.
12. The system defined in claim 9, wherein the expected voice signals are based on melodyharmony information from vocals of an artist.
13. The system defined in claim 8, wherein the output device comprises an audio output device, and wherein the control circuitry is further configured to:
direct the audio output device to play audible feedback signals to the user.
14. The system defined in claim 8, wherein the output device comprises an audio output device, and wherein the control circuitry is further configured to:
direct the audio output device to play positive feedback audible signals when the user is on keypitch; and
direct the audio output device to play negative feedback audible signals when the user is off keypitch.
15. A system for assisting a user performing karaoke, comprising a user device and a host device remote to the user device, the host device comprising control circuitry and communications circuitry, wherein the control circuitry comprises processing circuitry and at least one storage device, the control circuitry configured to:
direct the communications circuitry to receive the user’s voice signals from the user device; and
compare the user’s voice signals with expected voice signals stored in the at least one storage device;
determine whether the user is singing on keypitch based on the comparison; and
direct the communications circuitry to transmit real-time feedback to the user device while the user is still performing karaoke.
16. The system defined in claim 15, wherein the control circuitry is further configured to:
calculate the difference in pitch between the user’s voice signals and the expected voice signals.
17. The system defined in claim 16, wherein the user’s voice signals are based on melodyharmony information from vocals received from the user.
18. The system defined in claim 16, wherein the expected voice signals are based on melodyharmony information from as-recorded music.
19. The system defined in claim 16, wherein the expected voice signals are based on melodyharmony information from vocals of an artist.
20. The system defined in claim 15, wherein the control circuitry is further configured to:
direct the communications circuitry to transmit positive feedback audible signals to the user device when the user is on keypitch; and
direct the communications circuitry to transmit negative feedback audible signals to the user device when the user is off keypitch.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A resonator for measuring a complex dielectric constant which measures the complex dielectric constant of a dielectric layer, said resonator for measuring a complex dielectric constant comprising:
first and second conductor layers disposed parallel to each other so as to sandwich said dielectric layer in between;
first and second opening parts that face each other and are formed in said first and second conductor layers, respectively;
a plurality of first vias which is disposed with gaps left in between around said first and second opening parts, and which connect said first and second conductor layers to each other; and
second vias formed without being in contact with said first and second conductor layers in said first and second opening parts and in regions of said dielectric layer that match these opening parts.
2. The resonator for measuring a complex dielectric constant according to claim 1, further comprising one or more conductor layers which are disposed parallel to each other between said first and second conductor layers so as to sandwich said dielectric layer in between, which have opening parts formed in positions matching said first and second opening parts, and which are connected to said first vias.
3. The resonator for measuring a complex dielectric constant according to claim 1, wherein the region surrounded by said first vias has a rectangular shape as seen in a plan view.
4. The resonator for measuring a complex dielectric constant according to claim 3, wherein the length of one side of said rectangular region is (\u03bb\u221a2) or greater, where \u03bb is the measurement wavelength of the complex dielectric constant.
5. The resonator for measuring a complex dielectric constant according to claim 1, wherein the distance between adjacent first vias is (\u03bb20) or less, where \u03bb is the measurement wavelength of the complex dielectric constant.
6. A printed board in which a plurality of conductor layers is insulated from each other by dielectric layers, said printed board comprising the resonator according to claim 1.
7. A method for measuring the complex dielectric constant of a dielectric layer, said method for measuring a complex dielectric constant comprising the steps of:
applying a high-frequency electric power to the second vias of a resonator, said resonator having first and second conductor layers disposed parallel to each other so as to sandwich said dielectric layer in between, first and second opening parts that face each other and are formed in said first and second conductor layers, respectively, a plurality of first vias which is disposed with gaps left in between around said first and second opening parts, and which connect said first and second conductor layers to each other, and second vias formed without being in contact with said first and second conductor layers in said first and second opening parts and in regions of said dielectric layer that match these opening parts; and
measuring the power loss between said second vias and said first and second conductor layers by the S parameter method.
8. The method for measuring a complex dielectric constant according to claim 7, wherein the measurement of the power loss is accomplished by a process in which external conductors on second end parts of a pair of coaxial cables whose first end parts are connected to a network analyzer are respectively connected to said first and second conductor layers, the central conductors of the second end parts of the pair of coaxial cables are respectively inserted from both end parts of said second vias and connected to said second vias, and S11 and S21 are measured by said network analyzer.
9. The method for measuring a complex dielectric constant according to claim 7, wherein said resonator further has one or more conductor layers which are disposed parallel to said first and second conductor layers so as to sandwich said dielectric layer between said first and second conductor layers, which have opening parts formed in positions matching said first and second opening parts, and which are connected to said first vias.
10. The method for measuring a complex dielectric constant according to claim 7, wherein the region surrounded by said first vias of said resonator has a rectangular shape as seen in a plan view.
11. The method for measuring a complex dielectric constant according to claim 10, wherein the length of one side of said rectangular region is (\u03bb\u221a2) or greater, where \u03bb is the measurement wavelength of the complex dielectric constant.
12. The method for measuring a complex dielectric constant according to claim 7, wherein the distance between adjacent first vias of said resonator is (\u03bb20) or less, where \u03bb is the measurement wavelength of the complex dielectric constant.
13. The method for measuring a complex dielectric constant according to claim 7, wherein said resonator is formed inside a printed board, and is used to measure the complex dielectric constant of said printed board.