US6445338B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detecting apparatus of vehicle speed
Assignee: Sony Corp
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Filing: 2001-09-07
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Granted: 2002-09-03
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Expires: 2021-09-07
Abstract
Abstract A detecting apparatus of vehicle speed including detecting means for emitting an electromagnetic wave or an ultrasonic wave to a road surface and detecting traveling speed of a vehicle from the Doppler effect produced in a reflected wave thereof, a transmitting circuit for sending information about the traveling speed detected by the detecting means by radio, a power generation mechanism for generating power by vibration produced in the vehicle, and a charging circuit for charging a charging type battery by an output voltage of the power generation mechanism.
Inventors
- 👤 Masashi Ohkubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:06
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T7/16; G; G01; G01S; G01S13/00; G01S13/02; G01S13/50; G01S13/58; G01S13/60; G01S15/00; G01S15/02; G01S15/50; G01S15/58; G01S15/60; G01S7/00; G01S7/003
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
88 words
A detecting apparatus of vehicle speed comprising: detecting means for emitting an electromagnetic wave or an ultrasonic wave to a road surface and detecting traveling speed of a vehicle from the Doppler effect produced in a reflected wave thereof; a transmitting circuit for sending information about the traveling speed detected by the detecting means by radio; a power generation mechanism for generating power by vibration produced in said vehicle; and a charging circuit for charging a charging type battery by an output voltage of the power generation mechanism.
Claim 2
Dependent Claim
88 words
A detecting apparatus of vehicle speed comprising: detecting means for emitting an electromagnetic wave or an ultrasonic wave to a road surface and detecting traveling speed of a vehicle from the Doppler effect produced in a reflected wave thereof; a transmitting circuit for sending information about the traveling speed detected by the detecting means by radio; a power generation mechanism for generating power by vibration produced in said vehicle; and a charging circuit for charging a charging type battery by an output voltage of the power generation mechanism.
Claim 3
Dependent Claim
32 words
The detecting apparatus of vehicle speed according to claim 1 , wherein voltage of said charging type battery is supplied to said detecting means and said transmitting circuit as operating voltage thereof.
Claim 4
Dependent Claim
103 words
The detecting apparatus of vehicle speed according to claim 2 , further comprising: a switching circuit; and a detecting circuit for detecting a magnitude of the output voltage of said power generation mechanism, wherein said switching circuit is connected in series with the charging type battery and a voltage line between said detecting means and said transmitting circuit, an output of said detecting circuit is supplied to said switching circuit as a control signal thereof, and when the magnitude of the output voltage of said power generation mechanism is equal to or lower than a predetermined value, said switching circuit is turned off.
Claim 5
Dependent Claim
23 words
The detecting apparatus of vehicle speed according to claim 3 , wherein a hysteresis characteristic is provided to on/off of said switching circuit.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-09-02 | 2006-03-04 | 2006-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-09-02 | 2010-03-04 | 2010-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-09-02 | 2014-03-04 | 2014-09-03 | $7700.00 | Window Closed / Lapsed |