최소 단어 이상 선택하여야 합니다.
최대 10 단어까지만 선택 가능합니다.
다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
NTIS 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
DataON 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Edison 바로가기다음과 같은 기능을 한번의 로그인으로 사용 할 수 있습니다.
Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
|
출원번호 | US-0919495 (2013-06-17) |
등록번호 | US-8608327 (2013-12-17) |
발명자 / 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 | 피인용 횟수 : 5 인용 특허 : 1446 |
An automatic compass system for a vehicle includes compass circuitry having a multi-axis compass sensor and associated circuitry. The multi-axis compass sensor includes first and second magnetoresponsive sensing elements. The magnetoresponsive sensing elements and at least a portion of the associate
An automatic compass system for a vehicle includes compass circuitry having a multi-axis compass sensor and associated circuitry. The multi-axis compass sensor includes first and second magnetoresponsive sensing elements. The magnetoresponsive sensing elements and at least a portion of the associated circuitry are established on a common silicon substrate using CMOS technology. The associated circuitry includes at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver. The compass circuitry (i) determines a directional heading of the equipped vehicle responsive to a sensing of a magnetic field by the magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field. Responsive to the compass circuitry, an information display of the equipped vehicle may display the directional heading of the equipped vehicle.
1. An automatic compass system for a vehicle, said automatic compass system comprising: compass circuitry, wherein said compass circuitry comprises a multi-axis compass sensor and associated circuitry;wherein said multi-axis compass sensor comprises magnetoresponsive sensing elements and wherein sai
1. An automatic compass system for a vehicle, said automatic compass system comprising: compass circuitry, wherein said compass circuitry comprises a multi-axis compass sensor and associated circuitry;wherein said multi-axis compass sensor comprises magnetoresponsive sensing elements and wherein said magnetoresponsive sensing elements comprise at least first and second magnetoresponsive sensing elements;wherein said first and second magnetoresponsive sensing elements and at least a portion of said associated circuitry are established on a common silicon substrate using CMOS technology;wherein said associated circuitry comprises at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver; andwherein said compass circuitry (i) determines a directional heading of a vehicle equipped with said automatic compass system responsive to a sensing of a magnetic field by said magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field. 2. The automatic compass system of claim 1, wherein said compass circuitry comprises an application specific integrated chip. 3. The automatic compass system of claim 1, wherein, responsive to said compass circuitry, an information display of the equipped vehicle displays the directional heading of the equipped vehicle. 4. The automatic compass system of claim 1, wherein said compass circuitry is incorporated into a self-contained compass module. 5. The automatic compass system of claim 1, wherein, responsive to an output of a temperature sensor of the equipped vehicle, said compass circuitry is operable to determine a temperature reading and to display the temperature reading on an information display of the equipped vehicle. 6. The automatic compass system of claim 1, wherein said compass circuitry further comprises a temperature sensor and wherein said temperature sensor is commonly established with said magnetoresponsive sensing elements and said at least a portion of said associated circuitry on said silicon substrate. 7. The automatic compass system of claim 1, wherein said compass circuitry is disposed at an interior rearview mirror assembly of the equipped vehicle. 8. The automatic compass system of claim 7, wherein said compass circuitry is disposed in a mirror casing of said interior rearview mirror assembly that is adjustable by a driver of the equipped vehicle, and wherein an algorithm processed by a processor of said compass circuitry discerns between a change in said sensing by said magnetoresponsive sensing elements that is indicative of an adjustment of said mirror casing by the driver of the equipped vehicle and a change in said sensing by said magnetoresponsive sensing elements that is indicative of a change in vehicle direction, and causes said automatic compass system to enter a rapid compensating mode when the change in said sensing by said magnetoresponsive sensing elements is indicative of an adjustment of said mirror casing by the driver of the equipped vehicle. 9. The automatic compass system of claim 7, wherein said interior rearview mirror assembly comprises a vehicle bus interface. 10. The automatic compass system of claim 1, wherein said multi-axis compass sensor comprises a three-axis compass sensor comprising first and second magnetoresponsive sensing elements disposed generally orthogonally to each other and a third magnetoresponsive sensing element disposed generally orthogonally to said first and second magnetoresponsive sensing elements. 11. The automatic compass system of claim 1, wherein said magnetoresponsive sensing elements comprise Hall effect magnetoresponsive sensing elements. 12. The automatic compass system of claim 1, wherein said automatic compass system enters an initial rapid compensating mode in response to an ignition cycle of the equipped vehicle to achieve at least an approximate compensation for a deviating magnetic field of the equipped vehicle, and wherein said automatic compass system automatically exits said rapid compensating mode and enters a less aggressive calibration mode that distinguishes the Earth's magnetic field from magnetic anomalies and non-abrupt changes in the vehicle magnetic signature, and wherein said automatic compass system automatically exits said rapid compensating mode after a predetermined period of time has elapsed since the ignition cycle. 13. The automatic compass system of claim 1, wherein said automatic compass system operates in an automatic compensation mode to achieve at least an approximate compensation for a deviating magnetic field of the equipped vehicle and wherein the automatic compensation does not require the equipped vehicle to turn through a 360 degree circle to compensate for a deviating magnetic field of the equipped vehicle. 14. An automatic compass system for a vehicle, said automatic compass system comprising: a self-contained compass module comprising compass circuitry;wherein said compass circuitry comprises a multi-axis compass sensor and associated circuitry;wherein said multi-axis compass sensor comprises magnetoresponsive sensing elements and wherein said magnetoresponsive sensing elements comprise at least first and second magnetoresponsive sensing elements;wherein said first and second magnetoresponsive sensing elements and at least a portion of said associated circuitry are established on a silicon substrate using CMOS technology;wherein said associated circuitry comprises at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver;wherein said compass circuitry (i) determines a directional heading of a vehicle equipped with said automatic compass system responsive to a sensing of a magnetic field by said magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field; andwherein, responsive to said compass circuitry, an information display of the equipped vehicle displays the directional heading of the equipped vehicle. 15. The automatic compass system of claim 14, wherein said magnetoresponsive sensing elements comprise Hall effect magnetoresponsive sensing elements. 16. The automatic compass system of claim 14, wherein said compass circuitry further comprises a temperature sensor and wherein said temperature sensor is commonly established with said magnetoresponsive sensing elements and said at least a portion of said associated circuitry on said silicon substrate. 17. The automatic compass system of claim 14, wherein said compass circuitry is disposed at an interior rearview mirror assembly of the equipped vehicle, and wherein said compass circuitry is disposed in a mirror casing of said interior rearview mirror assembly that is adjustable by a driver of the equipped vehicle, and wherein an algorithm processed by a processor of said compass circuitry discerns between a change in said sensing by said magnetoresponsive sensing elements that is indicative of an adjustment of said mirror casing by the driver of the equipped vehicle and a change in said sensing by said magnetoresponsive sensing elements that is indicative of a change in vehicle direction, and causes said automatic compass system to enter a rapid compensating mode when the change in said sensing by said magnetoresponsive sensing elements is indicative of an adjustment of said mirror casing by the driver of the equipped vehicle. 18. The automatic compass system of claim 14, wherein said multi-axis compass sensor comprises a three-axis compass sensor comprising first and second magnetoresponsive sensing elements disposed generally orthogonally to each other and a third magnetoresponsive sensing element disposed generally orthogonally to said first and second magnetoresponsive sensing elements. 19. An automatic compass system for a vehicle, said automatic compass system comprising: a self-contained compass module comprising compass circuitry;wherein said compass circuitry comprises a multi-axis compass sensor and associated circuitry;wherein said multi-axis compass sensor comprises a three-axis compass sensor comprising magnetoresponsive sensing elements and wherein said magnetoresponsive sensing elements comprise first and second magnetoresponsive sensing elements disposed generally orthogonally to each other and a third magnetoresponsive sensing element disposed generally orthogonally to said first and second magnetoresponsive sensing elements;wherein said first, second and third magnetoresponsive sensing elements and at least a portion of said associated circuitry are established on said silicon substrate using CMOS technology;wherein a temperature sensor is commonly established on said silicon substrate with said magnetoresponsive sensing elements and said at least a portion of said associated circuitry;wherein said associated circuitry comprises at least one of (i) an A/D converter, (ii) a D/A converter, (iii) signal processing circuitry, (iv) memory, (v) signal filtering circuitry, (vi) a display driver;wherein said compass circuitry (i) determines a directional heading of a vehicle equipped with said automatic compass system responsive to a sensing of a magnetic field by said magnetoresponsive sensing elements and (ii) automatically compensates for a deviating magnetic field; andwherein, responsive to said compass circuitry, an information display of the equipped vehicle displays the directional heading of the equipped vehicle. 20. The automatic compass system of claim 19, wherein said compass circuitry, responsive to an output of said temperature sensor, is operable to determine a temperature reading and to display the temperature reading on said information display.
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