Providing information about a target object in a formatted output signal
In one aspect, an integrated circuit (IC) includes a sensor. The sensor includes a processor configured to provide speed and/or direction of a target object based on the speed of the target object; monitor for a diagnostic fault; provide information if the diagnostic fault is detected; monitor for critical faults; and provide information if a critical fault is detected and the sensor recovers from the critical fault.
1. An integrated circuit (IC) comprising:
a sensor comprising a processor configured to:
provide speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
provide the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitor for a diagnostic fault;
provide a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitor for a critical fault; and
provide the information bits in response to the critical fault being detected and in response to the sensor recovering from the critical fault,
wherein the processor configured to provide the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises the processor configured to finish providing the speed information before providing the diagnostic flag and the information bits in response to the diagnostic fault occurring during transmission of the speed information.
2. The IC of claim 1 , wherein the processor configured to provide the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed comprises the processor configured to provide the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed and less than a second predetermined speed.
3. The IC of claim 2 , wherein the first predetermined speed is 1 kHz and the second predetermined speed is 10 kHz.
4. The IC of claim 1 , wherein the information bits comprise diagnostic bits, system integrity bits and a parity bit.
5. The IC of claim 1 , wherein the information bits comprise at least one of a diagnostic bit, a system integrity bit or a parity bit.
6. The IC of claim 1 , wherein the processor configured to provide the speed information of the target object in response to the speed of the target object being greater than the first predetermined value comprises providing the speed information without providing the direction information.
7. The IC of claim 1 , wherein the processor comprises a magnetic field sensing element.
8. The IC of claim 7 , wherein the magnetic field sensing element comprises a Hall effect element, a magnetoresistance element or a magnetotransistor.
9. The IC of claim 8 , wherein the magnetoresistance element comprises a giant magnetoresistance (GMR) element, an anisotropic magnetoresistance element (AMR), a tunneling magnetoresistance (TMR) element or a magnetic tunnel junction (MTJ).
10. An integrated circuit (IC) comprising:
a sensor comprising a processor configured to:
provide speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
provide the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitor for a diagnostic fault;
provide a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitor for a critical fault; and
provide the information bits in response to the critical fault being detected and in response to the sensor recovering from the critical fault,
wherein the processor configured to provide the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises
the processor configured to finish providing the speed information and the direction information before providing the diagnostic flag and the information bits in response to the diagnostic fault occurring during transmission of speed information and the direction information.
11. The IC of claim 10 , wherein the processor configured to provide the speed information of the target object in response to the speed of the target object being greater than the first predetermined value comprises providing the speed information without providing the direction information.
12. The IC of claim 10 , wherein the processor configured to provide the speed information of the target object in response to the speed of the target being greater than the first predetermined speed comprises the processor configured to provide the speed information of the target in response to the speed of the target object being greater than the first predetermined speed and less than a second predetermined speed.
13. The IC of claim 12 , wherein the first predetermined speed is 1 kHz and the second predetermined speed is 10 kHz.
14. The IC of claim 10 , wherein the information bits comprise diagnostic bits, system integrity bits and a parity bit.
15. The IC of claim 10 , wherein the information bits comprise at least one of a diagnostic bit, a system integrity bit or a parity bit.
16. The IC of claim 10 , wherein the processor comprises a magnetic field sensing element.
17. The IC of claim 16 , wherein the magnetic field sensing element comprises a Hall effect element, a magnetoresistance element or a magnetotransistor.
18. The IC of claim 17 , wherein the magnetoresistance element comprises a giant magnetoresistance (GMR) element, an anisotropic magnetoresistance element (AMR), a tunneling magnetoresistance (TMR) element or a magnetic tunnel junction (MTJ).
19. A method comprising:
providing speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
providing the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitoring for a diagnostic fault;
providing a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitoring for a critical fault; and
providing a critical flag and the information bits in response to the critical fault being detected and in response to a sensor recovering from the critical fault,
wherein providing the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises finishing providing the speed information before providing the diagnostic flag and the information bits in response to the diagnostic occurring during transmission of speed information.
20. The method of claim 19 , wherein providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed comprises providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed and less than a second predetermined speed.
21. The method of claim 20 , wherein the first predetermined speed is 1 kHz and the second predetermined speed is 10 kHz.
22. The method of claim 19 , wherein the information bits comprise diagnostic bits, system integrity bits and a parity bit.
23. The method of claim 19 , wherein the information bits comprise at least one of a diagnostic bit, a system integrity bit or a parity bit.
24. The method of claim 19 , providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined value comprises providing the speed information without providing the direction information.
25. A method comprising:
providing speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
providing the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitoring for a diagnostic fault;
providing a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitoring for a critical fault; and
providing a critical flag and the information bits in response to the critical fault being detected and in response to a sensor recovering from the critical fault,
wherein providing the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises
finishing providing the speed information and the direction information before providing the diagnostic flag and the information bits in response to if the diagnostic fault occurring during transmission of speed information and the direction information.
26. The method of claim 25 , providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined value comprises providing the speed information without providing the direction information.
27. The method of claim 25 , wherein providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed comprises providing the speed information of the target object in response to the speed of the target object being greater than the first predetermined speed and less than a second predetermined speed.
28. The method of claim 27 , wherein the first predetermined speed is 1 kHz and the second predetermined speed is 10 kHz.
29. The method of claim 25 , wherein the information bits comprise diagnostic bits, system integrity bits and a parity bit.
30. An integrated circuit (IC) comprising:
a sensor comprising a means to:
provide speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
provide the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitor for a diagnostic fault;
provide a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitor for a critical fault; and
provide the information bits in response to the critical fault being detected and in response to the sensor recovering from the critical fault,
wherein the means to provide the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises the means to finish providing the speed information before providing the diagnostic flag and the information bits in response to the diagnostic fault occurring during transmission of the speed information.
31. The IC of claim 30 , wherein the sensor comprises a giant magnetoresistance (GMR) element, an anisotropic magnetoresistance element (AMR), a tunneling magnetoresistance (TMR) element, a magnetic tunnel junction (MTJ) or a Hall effect element.
32. An integrated circuit (IC) comprising:
a sensor comprising a means to:
provide speed information of a target object in response to a speed of the target object being greater than a first predetermined value;
provide the speed information and direction information of the target object in response to the speed being below the first predetermined value;
monitor for a diagnostic fault;
provide a diagnostic flag and information bits in response to the diagnostic fault being detected;
monitor for a critical fault; and
provide the information bits in response to the critical fault being detected and in response to the sensor recovering from the critical fault,
wherein providing the diagnostic flag and the information bits in response to the diagnostic fault being detected comprises finishing providing the speed information and the direction information before providing the diagnostic flag and the information bits in response to the diagnostic fault occurring during transmission of speed information and the direction information.
33. The IC of claim 32 , wherein the sensor comprises a giant magnetoresistance (GMR) element, an anisotropic magnetoresistance element (AMR), a tunneling magnetoresistance (TMR) element, a magnetic tunnel junction (MTJ) or a Hall effect element.