1. A system comprising:
a sensor including a sensing capacitor;
sensing circuitry configured to receive signals from the sensor;
at least one bond wire and at least one switch coupled to the sensor and the sensing circuitry; and
at least one control signal coupled to the at least one switch and configured to control the at least one switch to separate parasitic bond capacitance of the at least one bond wire from sensing capacitance of the sensor.
2. The system of claim 1, wherein the capacitive sensor includes a first capacitor and a second capacitor coupled in series.
3. The system of claim 2, wherein the at least one switch includes a first set of switches and a second set of switches.
4. The system of claim 3, wherein the first set of switches includes a first switch coupled to a first bond wire and a first conductor of the first capacitor and a second switch coupled to a second bond wire and a second conductor of the second capacitor.
5. The system of claim 4, wherein the second set of switches includes a third switch coupled to the second bond wire and the first conductor of the first capacitor and a fourth switch coupled to the first bond wire and the second conductor of the second capacitor.
6. The system of claim 1, wherein the sensing circuitry comprises first circuitry and second circuitry, wherein the first circuitry is coupled to the at least one bond wire and the second circuitry.
7. The system of claim 6, wherein the first set of switches includes a fifth switch and a sixth switch, wherein the fifth switch is coupled to a first output of the first circuitry and a first input of the second circuitry, wherein the sixth switch is coupled to a second output of the first circuitry and a second input of the second circuitry.
8. The system of claim 7, wherein the second set of switches includes a seventh switch and an eighth switch, wherein the seventh switch is coupled to the first output of the first circuitry and the second input of the second circuitry, wherein the eighth switch is coupled to the second output of the first circuitry and the first input of the second circuitry.
9. The system of claim 1, wherein the at least one control signal includes a first control signal coupled to the first set of switches and a second control signal coupled to the second set of switches.
10. The system of claim 9, wherein the first control signal is configured to control the first set of switches to a first state and the second control signal is configured to control the second set of switches to a second state, wherein the first state is opposite the second state.
11. The system of claim 9, wherein a phase relationship between the first control signal and the second control signal eliminates one or more of an offset voltage between the sensor and the sensing circuitry and the parasitic bond capacitance.
12. The system of claim 1, wherein the at least one switch comprises at least one transistor.
13. The system of claim 1, wherein the at least one switch comprises a relay including a movable beam positioned between a plurality of fixed electrodes.
14. The system of claim 1, comprising a first die including the sensor.
15. The system of claim 14, comprising a second die including the sensing circuitry.
16. The system of claim 1, wherein separating the parasitic bond capacitance from the sensing capacitance is a frequency domain separation.
17. A system comprising:
a first circuit coupled to at least one switch;
a bond wire coupled to the at least one switch;
a second circuit coupled to the bond wire; and
at least one control signal coupled to the at least one switch, the at least one control signal configured to control coupling of the first circuit to the second circuit via the switch to cancel a variable offset introduced by the bond wire in an output of the first circuit.
18. The system of claim 17, wherein the variable offset includes one or more of parasitic capacitance and offset voltage.
19. The system of claim 17, wherein canceling the variable offset includes separating parasitic bond capacitance of the bond wire from capacitance of the first circuit.
20. The system of claim 17, comprising a third circuit coupled to second circuit via the at least one switch.
21. A system comprising:
a first die including a first circuit;
at least one switch coupled to the first circuit;
a second die including a second circuit;
a bond wire coupled to the at least one switch and the second circuit; and
control signals coupled to the at least one switch, the control signals configured to control a connection of the first circuit to the second circuit via the switch to eliminate offsets introduced in an output of the first circuit by the coupling.
22. The system of claim 21, wherein a phase relationship between different ones of the control signals eliminates the offsets including one or more of a parasitic capacitance and an offset voltage.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
I claim:
1. A spinning top comprising,
a single element having a cross-section,
said single element having a first portion, a second portion and a third portion, said first portion and said third portion are comprised of a linear element of equal length,
said second portion is comprised of a curved body, said curved body having a center,
said curved body having a central point, said first portion and said third portion located equidistant from said central point and said first portion and said third portion oriented generally radially from said center, whereby said top is spun when a user applies a rotational force to at least one of either said first portion or said third portion, and said top spins on a surface about said central point.
2. A spinning top as claimed in claim 1 wherein said cross-section is circular.
3. A spinning top as claimed in claim 1 wherein said cross-section is triangular.
4. A spinning top as claimed in claim 1 wherein said cross-section is diamond shaped.
5. A spinning top as claimed in claim 1 wherein said cross-section takes the appearance of a plus sign ().
6. A spinning top as claimed in claim 1 when spun, gives the appearance of a three-dimensional object.
7. A spinning top with a first handle and a second handle for spinning said top, said top comprising:
a single element having an unitary cross-section,
said single element having a partial circular element centrally located thereon,
said partial circular element having a right side and a left side,
said right side adapted to have said first handle depending therefrom,
said left side adapted to have said second handle depending therefrom,
said first handle and said second handle being in a non-parallel relation,
and said first handle and said second handle further being outside said partial circular element, whereby
when a user applies a rotational force to either said first handle or said second handle said top will spin.
8. A spinning top as claimed in claim 7 wherein said cross-section is circular.
9. A spinning top as claimed in claim 7 wherein said cross-section is triangular.
10. A spinning top as claimed in claim 7 wherein said cross-section is diamond shaped.
11. A spinning top as claimed in claim 7 wherein said cross-section takes the appearance of a plus sign ().
12. A spinning top as claimed in claim 7, when spun, gives the appearance of a three-dimensional object.
13. A spinning top as claimed in claim 1 wherein said second portion holds an object within its boundaries.
14. A spinning top as claimed in claim 7 wherein said partial circular element holds an object within its boundaries.