Systems and methods for backscatter communication
US10498569B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Jun 23, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B17/318
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
Systems and methods for wireless communication are provided. The systems and methods employ a backscatter tag that is configured to shift an incident carrier signal received by the tag to a different frequency band and then transmitting the frequency-shifted carrier signal to a receiver. The frequency band to which the carrier signal is shifted is a band in which interference is minimal or non-existent. Further, the backscatter tag is able to operate in an ultra-low power manner, thereby allowing the tag to be incorporated into components like on-body sensors so that the tag can embed additional information into the carrier signal for transmission and processing by the receiver. Exemplary electronic circuits and systems that utilize a frequency-shifted Backscatter, as well as methods for implementing a frequency-shifted Backscatter, are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.