Patent · US Active

System, apparatus, and method for proximity detection

US10021241B2 · kind B2 · utility

0Cited by

4References

28Claims

0Family size

Assignee

QUALCOMM Incorporated · US

Inventors

Vadim Winebrand · San Diego, US
Michael Leviant · Haifa, IL
Meir Agassy · Ramat Gan, IL
Gilad Bornstein · Haifa, IL

Key dates

Filing date	Feb 3, 2016
Grant date	Jul 10, 2018
Priority date	—
Expiry date	Apr 4, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH04M1/72454
WIPO fieldTelecommunications
WIPO sectorElectrical engineering

Abstract

A mobile communication device equipped for proximity detection may include a transmitter that emits a periodic ultrasound signal, a receiver that detects the periodic ultrasound signal, an intra-frame filter that filters the detected periodic ultrasound signal based on a frame length of the detected periodic ultrasound signal, and a detector that determines a power level of the filtered periodic ultrasound signal to detect if the receiver is located in an undesirable location.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.