Invention Grant
- Patent Title: In-home inventory and location system
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Application No.: US16582314Application Date: 2019-09-25
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Publication No.: US10852414B2Publication Date: 2020-12-01
- Inventor: Karthikeyan Sundaresan , Eugene Chai , Sampath Rangarajan
- Applicant: NEC Laboratories America, Inc.
- Assignee: NEC CORPORATION
- Current Assignee: NEC CORPORATION
- Agent Joseph Kolodka
- Main IPC: G08B21/00
- IPC: G08B21/00 ; G01S13/76 ; H01Q1/22 ; G06K19/07 ; G01S13/75 ; G08B13/24

Abstract:
An in-home inventory and location system is provided. At least one RF backscatter transmitter, hosted on a device, is configured to emit a RF signal on a frequency. A set of passive RF backscatter tags, each associated with a respective one of a plurality of products in a given area, is configured to reflect and frequency shift the RF signal to a different frequency. At least one RF backscatter receiver, hosted on another device, is configured to read the products on the different frequency by detecting a distributed ambient backscatter signal generated by a reflection and frequency shifting of the RF signal by the passive RF backscatter tag. At least one of the device hosting the at least one RF backscatter transmitter and the other device hosting the at least one RF backscatter receiver is configured to maintain an inventory and location of the products in the given area.
Public/Granted literature
- US20200018845A1 IN-HOME INVENTORY AND LOCATION SYSTEM Public/Granted day:2020-01-16
Information query