1. A display device comprising:
a substrate;
a plurality of pixel electrodes arranged in a matrix in a plane parallel with said substrate;
a display functional layer that exhibits an image display function on a basis of an image signal supplied to said plurality of pixel electrodes;
a driving electrode opposed to said plurality of pixel electrodes; and
a plurality of detecting electrodes (a) arranged in a plane opposed to said driving electrode, (b) separated and arranged at a pitch of a natural number multiple of an arrangement pitch of said pixel electrodes in one direction in the arrangement plane, and (c) with each capacitively coupled to said driving electrode,
wherein,
floating electrodes are arranged between the detecting electrodes in an arrangement of the detecting electrodes and an arrangement pitch of the detecting electrodes,
an arrangement pitch of the floating electrodes and an arrangement pitch of the detecting electrodes and the floating electrodes are each a natural number multiple of the arrangement pitch of said pixel electrodes,
a color filter layer colored in a different color in each pixel is disposed between then plane of said plurality of driving electrodes and the plane of said plurality of detecting electrodes,
in said color filter layer, a plurality of color regions including three color regions for RGB display are regularly arranged,
said detecting electrodes and said floating electrodes are each arranged at a natural number multiple of an arrangement pitch of said color regions in at least said one direction,
the display device has inter-electrode separation regions between said detecting electrodes, between said floating electrodes, and between said detecting electrodes and said floating electrodes, and
said inter-electrode separation regions are arranged so as to be superimposed on color regions of an identical color of said color filter layer in a view of a display surface of the display device in at least one of another direction orthogonal to said one direction and said one direction.
2. A display device comprising:
a substrate;
a plurality of pixel electrodes arranged in a matrix in a plane parallel with said substrate;
a display functional layer that exhibits an image display function on a basis of an image signal supplied to said plurality of pixel electrodes;
a plurality of detecting electrodes (a) arranged in a plane opposed to said driving electrode, (b) separated and arranged at a pitch of a natural number multiple of an arrangement pitch of said pixel electrodes in one direction in the arrangement plane, and (c) with each capacitively coupled to said driving electrode;
a plurality of driving electrodes arranged in a plane opposed to said plurality of pixel electrodes and separated and arranged at a pitch of a natural number multiple of the arrangement pitch of said pixel electrodes in another direction orthogonal to said one direction; and
a driving circuit for supplying said plurality of driving electrodes with a voltage serving as a reference for a voltage applied to said display functional layer and a driving voltage for detecting that magnitude of capacitances coupled to said plurality of detecting electrodes changes at a part of the detecting electrodes by selectively applying the driving voltage to each unit of a predetermined number of said driving electrodes among said plurality of driving electrodes and shifting selected and driven objects of the driving electrodes in said other direction,
wherein
floating electrodes are arranged between the detecting electrodes in an arrangement of the detecting electrodes and an arrangement pitch of the detecting electrodes,
an arrangement pitch of the floating electrodes and an arrangement pitch of the detecting electrodes and the floating electrodes are each a natural number multiple of the arrangement pitch of said pixel electrodes,
a color filter layer colored in a different color in each pixel is disposed between the plane of said plurality of driving electrodes and the plane of said plurality of detecting electrodes,
in said color filter layer, a plurality of color regions including three color regions for RGB display are regularly arranged,
said detecting electrodes and said floating electrodes are each arranged at a natural number multiple of an arrangement pitch of said color regions in at least said one direction,
the display device has inter-electrode separation regions between said detecting electrodes, between said floating electrodes, and between said detecting electrodes and said floating electrodes, and
said inter-electrode separation regions are arranged so as to be superimposed on color regions of an identical color of said color filter layer in a view of a display surface of the display device in at least one of another direction orthogonal to said one direction and said one direction.
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 method of inter-channel bias (ICB) calibration in a global navigation system (GNSS) receiver, comprising:
receiving a plurality of GNSS radio-frequency (RF) signals;
converting the plurality of GNSS RF signals into a plurality of GNSS baseband signals utilizing an RF front-end processing unit;
generating a measurement result according to the plurality of GNSS baseband signals utilizing a baseband processing unit; and
calibrating the measurement result utilizing a plurality of pre-determined inter-channel biases.
2. The method of claim 1, wherein converting the plurality of GNSS RF signals into the plurality of GNSS baseband signals utilizing an RF front-end processing unit comprises:
converting the plurality of GNSS RF signals into a plurality of digital GNSS IF signals utilizing an analog front-end circuit; and
converting the plurality of digital GNSS IF signals into the plurality of GNSS baseband signals utilizing a digital front-end circuit.
3. The method of claim 2, wherein converting the plurality of GNSS RF signals into a plurality of digital GNSS IF signals utilizing an analog front-end circuit comprises:
amplifying the plurality of GNSS RF signals utilizing a low-noise amplifier;
converting the plurality of GNSS RF signals into a plurality of analog GNSS IF signals utilizing a first frequency-down converter;
filtering the plurality of analog GNSS IF signals utilizing a wideband complex band-pass filter; and
converting the plurality of analog GNSS IF signals into the plurality of digital GNSS IF signals utilizing an analog-to-digital signal converter.
4. The method of claim 2, wherein converting the plurality of digital GNSS IF signals into the plurality of GNSS baseband signals utilizing a digital front-end circuit comprises:
converting the plurality of digital GNSS IF signals into the plurality of GNSS baseband signals utilizing a plurality of second frequency-down converters; and
filtering the plurality of GNSS baseband signals utilizing a plurality of narrowband complex low-pass filters.
5. The method of claim 1, wherein the plurality of pre-determined inter-channel biases is obtained according to a plurality of theoretical or simulated inter-channel biases.
6. The method of claim 1, wherein the plurality of pre-determined inter-channel biases is obtained according to a result from at least a GNSS RF-signal receiving simulation.
7. The method of claim 1, wherein the plurality of pre-determined inter-channel biases is obtained according to the following steps:
generating a plurality of reference GNSS codes utilizing a reference GNSS code generator;
generating a plurality of reference GNSS RF signals utilizing a radio processing unit according to the plurality of reference GNSS codes;
emitting the plurality of reference GNSS RF signals;
receiving the plurality of reference GNSS RF signals via air transmission;
generating a reference measurement result via the RF front-end processing unit and the baseband processing unit according to the plurality of reference GNSS RF signals; and
comparing a difference in transmission latencies between the reference measurement result and the reference GNSS RF signals utilizing a pre-determined ICB generator.
8. The method of claim 1, wherein the plurality of pre-determined inter-channel biases is obtained by configuring a calibration channel from the RF front-end processing unit and comparing a difference in transmission latencies between the plurality of GNSS RF signals through the calibration channel and the plurality of GNSS RF signals through a normal channel of the RF front-end processing unit.
9. The method of claim 1, wherein the plurality of pre-determined inter-channel biases corresponds to at least a temperature value.
10. The method of claim 9, wherein the at least a temperature value is obtained utilizing a thermal sensor.
11. The method of claim 1, wherein the plurality of pre-determined inter-channel biases is stored in a pre-determined ICB table, wherein the pre-determined ICB calibration table is stored in a non-volatile memory.
12. The method of claim 1, wherein the plurality of GNSS RF signals comprises a plurality of global positioning system (GPS) RF signals.
13. The method of claim 1, wherein the plurality of GNSS RF signals comprises a plurality of European satellite navigation system (GALILEO) RF signals.
14. The method of claim 1, wherein the plurality of GNSS RF signals comprises a plurality of Global Orbiting Navigation Satellite System (GLONASS) RF signals.
15. The method of claim 1, wherein the plurality of GNSS RF signals comprises a plurality of Beidou navigation satellite system (COMPASS) RF signals.
16. A global navigation satellite system (GNSS) receiver, comprising:
a GNSS antenna, for receiving a plurality of GNSS RF signals;
an RF front-end processing unit, coupled to the GNSS antenna, for converting the plurality of GNSS RF signals into a plurality of GNSS baseband signals;
a baseband processing unit, coupled to the baseband processing unit, for generating a measurement result according to the plurality of GNSS baseband signals; and
an inter-channel bias (ICB) calibration unit, coupled to the baseband processing unit, for calibrating the measurement result utilizing a plurality of pre-determined inter-channel biases.
17. The GNSS receiver of claim 16, wherein the RF front-end processing unit comprises:
an analog front-end circuit, for converting the plurality of GNSS RF signals into a plurality of digital GNSS IF signals; and
a digital front-end circuit, coupled to the analog front-end circuit, for converting the plurality of digital GNSS IF signals into the plurality of GNSS baseband signals.
18. The GNSS receiver of claim 17, wherein the analog front-end circuit comprises:
a low-noise amplifier, for amplifying the plurality of GNSS RF signals;
a first frequency-down converter, coupled to the low-noise amplifier, for converting the plurality of GNSS RF signals into a plurality of analog GNSS IF signals;
a wideband complex band-pass filter, coupled to the first frequency down-converter, for filtering the plurality of analog GNSS IF signals; and
an analog-to-digital signal converter, coupled to the wideband complex band-pass filter, for converting the plurality of analog GNSS IF signals into the plurality of digital GNSS IF signals.
19. The GNSS receiver of claim 17, wherein the digital front-end circuit comprises:
a plurality of second frequency-down converters, for converting the plurality of digital GNSS IF signals into the plurality of GNSS baseband signals; and
a plurality of narrowband complex low-pass filters, each coupled to one of the plurality of second frequency-down converters, for filtering the plurality of GNSS baseband signals.
20. The GNSS receiver of claim 16, wherein the plurality of pre-determined inter-channel biases is obtained according to a plurality of theoretical or simulated inter-channel biases.
21. The GNSS receiver of claim 16, wherein the plurality of pre-determined inter-channel biases is obtained according to a result from at least a GNSS RF-signal receiving simulation.
22. The GNSS receiver of claim 16, further comprising:
a reference GNSS RF signals generator, comprising:
a reference GNSS code generator, for generating a plurality of reference GNSS codes;
a radio processing unit, coupled to the reference GNSS code generator, for generating a plurality of reference GNSS RF signals according to the plurality of GNSS codes; and
a radio antenna, coupled to the radio processing unit, for emitting the plurality of reference GNSS RF signals; and
a pre-determined ICB generator, coupled to the baseband processing unit, for comparing a difference in transmission latencies between a reference measurement result and the plurality of reference GNSS RF signals, and obtaining the plurality of pre-determined inter-channel biases accordingly;
wherein the reference measurement result is generated according to the plurality of reference GNSS RF signals received by the GNSS antenna via air transmission and converted by the RF front-end processing unit and the baseband processing unit.
23. The GNSS receiver of claim 16, wherein the plurality of pre-determined inter-channel biases is obtained by configuring a calibration channel from the RF front-end processing unit and comparing a difference in transmission latencies between the plurality of GNSS RF signals through the calibration channel and the plurality of GNSS RF signals through a normal channel of the RF front-end processing unit.
24. The GNSS receiver of claim 16, wherein the plurality of pre-determined inter-channel biases corresponds to at least a temperature value.
25. The GNSS receiver of claim 24, further comprising:
a thermal sensor, coupled to the ICB calibration unit, for obtaining the at lease a temperature value.
26. The GNSS receiver of claim 16, further comprising:
a pre-determined ICB calibration table, for storing the pre-determined inter-channel biases; and
a non-volatile memory, for storing the pre-determined ICB calibration table.
27. The GNSS receiver of claim 16, wherein the plurality of GNSS RF signals comprises a plurality of global positioning system (GPS) RF signals.
28. The GNSS receiver of claim 16, wherein the plurality of GNSS RF signals comprises a plurality of European satellite navigation system (GALILEO) RF signals.
29. The GNSS receiver of claim 16, wherein the plurality of GNSS RF signals comprises a plurality of Global Orbiting Navigation Satellite System (GLONASS) RF signals.
30. The GNSS receiver of claim 16, wherein the plurality of GNSS RF signals comprises a plurality of Beidou navigation satellite system (COMPASS) RF signals.