Obstruction detecting apparatus
US6128576A · kind A · utility
294Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1998 |
| Grant date | Oct 3, 2000 |
| Priority date | — |
| Expiry date | Dec 11, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2015/938
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In the obstruction detection apparatus incorporated in a vehicle (11), ultrasonic wave transmitter/receiver (16 to 19 171) for changing a combination of transmitting of ultrasonic waves and of receiving of reflected ultrasonic waves, a CPU (20) calculates a distance between the vehicle (11) and an obstruction and stores data corresponding to the calculated distance into the distance table (23), and the LC display device (27) displays the obstruction on display bars of a lattice shape corresponding to the data stored in the distance table (23), and a buzzer (26) sounds an alarm for a driver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.