System and method for object position estimation based on ultrasonic reflected signals
US9810784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2011 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Mar 11, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for small space positioning comprises a transmitting element at a fixed and known location, which transmitting a modulated continuous wave, for example an ultrasonic wave, having a continuous carrier signal part and a base-band signal modulated thereon. The transmitting element transmits the modulated continuous wave over a range in which an object to be positioned may appear. A receiving element receives signals transmitted by the transmitting device and reflected by the object, and a position detection element determines a position of the object from analysis of both the carrier signal part and the base-band signal received from the reflected signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.