US5546086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ranging sensor system for vehicle
Assignee: Honda Motor Co Ltd
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Filing: 1994-05-04
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Granted: 1996-08-13
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Expires: 2014-05-04
Abstract
Abstract In a ranging sensor system for a vehicle for calculating a physical data between a subject vehicle and an object on the basis of the time between the transmission of a signal toward the object and the reception of a signal reflected from the object, a first obtained detection data is set as an offset value in an offset value setting circuit. The offset value is subtracted from the detection data in a subtractor, and an output from the subtractor is filtered in a filter circuit. The offset value is added to an output from the filter circuit in an adder to provide a physical data after the filtering. Thus, it is possible to eliminate an error included in detection data, while insuring a responsiveness and a stability.
Inventors
- 👤 Kenji Akuzawa
- 👤 Hiroki Matsui
- 👤 Yasuhiko Fujita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:53
CPC Classifications
G; G01; G01S; G01S17/00; G01S17/88; G01S17/93; G01S17/931; B; B60; B60T; B60T7/00; B60T7/12; B60T7/22
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
129 words
A ranging sensor system for a vehicle for calculating a physical data between a subject vehicle and an object on the basis of the time between the transmission of a signal toward the object and the reception of a signal reflected from the object, comprising: detection means for detecting data representing a physical relationship between the subject vehicle and the object; offset value setting means for setting an initial value of detection data output from the detection means as an offset value; subtracting means for subtracting the offset value from a non-initial value of detection data; filter means for filtering an output from said subtracting means; and adding means for adding the offset value to an output from said filter means to provide a filtered value of physical data.
Claim 2
Dependent Claim
129 words
A ranging sensor system for a vehicle for calculating a physical data between a subject vehicle and an object on the basis of the time between the transmission of a signal toward the object and the reception of a signal reflected from the object, comprising: detection means for detecting data representing a physical relationship between the subject vehicle and the object; offset value setting means for setting an initial value of detection data output from the detection means as an offset value; subtracting means for subtracting the offset value from a non-initial value of detection data; filter means for filtering an output from said subtracting means; and adding means for adding the offset value to an output from said filter means to provide a filtered value of physical data.
Claim 3
Dependent Claim
81 words
A radar sensor system for a vehicle according to claim 1, further comprising memory means for storing a plurality of values of detection data obtained over a predetermined period of time, and determining means for determining, when all values of detection data obtained for less than the predetermined period of time are zero, and when a new value of detection data obtained after said predetermined period of time is not zero, said new value as said initial value of detection data.
References Cited (Backward Citations)
DE3222263A1
Cited
GB2139445A
Cited
DE3616930A1
Cited
US4757450A
Cited
DE4140716A1
Cited
US5227784A
Cited
DE4104315A1
Cited
US5321407A
Cited
US5293162A
Cited
US5341344A
Cited
US5314037A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-13 | 2000-02-12 | 2000-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-13 | 2004-02-12 | 2004-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-13 | 2008-02-12 | 2008-08-13 | $7700.00 | Window Closed / Lapsed |