Radio frequency active filter
US-10389395-B1 · Aug 20, 2019 · US
Device communication over television white space
US2023403567A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2023403567-A1 |
| Application number | US-202318457317-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 28, 2023 |
| Priority date | May 15, 2020 |
| Publication date | Dec 14, 2023 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elements is configured to filter out second harmonics in a defined frequency range. The disclosure determines a TVWS channel for the communication and switches to a filter element of the plurality of filter elements corresponding to the determined TVWS channel. Data is transmitted and/or received over the TVWS channel using the filter element, thereby allowing narrowband communication over the TVWS channel.
First claim
Opening claim text (preview).
What is claimed is: 1 . A device for television white space (TVWS) communication, the device comprising: a multiband transmitter and a multiband receiver; an antenna, the multiband transmitter and the multiband receiver connected to the antenna and configured to transmit and receive at a plurality of TVWS frequencies; and a log periodic filter connected between the multiband transmitter and the antenna, the log periodic filter comprising a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor.
Assignees
Inventors
Classifications
- H04W16/14Primary
Spectrum sharing arrangements {between different networks} · CPC title
- H04B15/02Primary
Reducing interference from electric apparatus by means located at or near the interfering apparatus · CPC title
using diplexing or multiplexing filters for selecting the desired band · CPC title
- H04B1/40Primary
Circuits · CPC title
Discovering, processing access restriction or access information · CPC title
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Frequently asked questions
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- What does patent US2023403567A1 cover?
- The disclosure described herein configures a multi-narrowband transceiver for communication within the television white space (TVWS) frequency spectrum using a log periodic filter, wherein the log periodic filter comprises a plurality of filter elements each having a filter frequency increasing periodically in a same frequency increasing factor (K). Each filter of the plurality of filter elemen…
- Who is the assignee on this patent?
- Microsoft Technology Licensing Llc
- What technology area does this patent fall under?
- Primary CPC classification H04W16/14. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Dec 14 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).