Causing a device to join a synchrony group
US-9778900-B2 · Oct 3, 2017 · US
digital audio broadcasting [DAB]
digital audio broadcasting [DAB] · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04H2201/20 |
| Official title | digital audio broadcasting [DAB] |
| Display label | digital audio broadcasting [DAB] |
| Total patents | 167 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 20 |
| 2017 | 15 |
| 2018 | 16 |
| 2019 | 36 |
| 2020 | 18 |
| 2021 | 13 |
| 2022 | 8 |
| 2023 | 5 |
| 2024 | 4 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Ceasing playback among a plurality of playback devices
US-9778897-B2 · Oct 3, 2017 · US
Resynchronization of playback devices
US-9778898-B2 · Oct 3, 2017 · US
Obtaining content from multiple remote sources for playback
US-9740453-B2 · Aug 22, 2017 · US
Obtaining content from local and remote sources for playback
US-9733891-B2 · Aug 15, 2017 · US
Obtaining content based on control by multiple controllers
US-9733892-B2 · Aug 15, 2017 · US
Obtaining content from direct source and other source
US-9727304-B2 · Aug 8, 2017 · US
Resuming synchronous playback of content
US-9727303-B2 · Aug 8, 2017 · US
Obtaining content from remote source for playback
US-9727302-B2 · Aug 8, 2017 · US
Method and Device for Receiving a Broadcast Service Comprising Switching Between Digital Audio Broadcasting (DAB) Transmissions and Enhanced Multimedia Broadcast/Multicast Transmissions (EMBMS)
US-2017163362-A1 · Jun 8, 2017 · US
Resuming synchronous playback of content
US-9658820-B2 · May 23, 2017 · US
Apparatus and method for receiving digital radio broadcasting
US-2017134823-A1 · May 11, 2017 · US
Dmb terminal for enabling simultaneous dmb viewing and phone call and method therefor
US-2017054841-A1 · Feb 23, 2017 · US
Method and apparatus for implementing signal quality metrics and antenna diversity switching control
US-9544039-B2 · Jan 10, 2017 · US
Playback Device Synchrony Group States
US-2016357499-A1 · Dec 8, 2016 · US
Playback Device Operating States
US-2016342385-A1 · Nov 24, 2016 · US
DMB terminal for enabling simultaneous DMB viewing and phone call and method therefor
US-9490925-B2 · Nov 8, 2016 · US
Systems and Methods for Detection of Signal Quality in Digital Radio Broadcast Signals
US-2016302093-A1 · Oct 13, 2016 · US
Resuming Synchronous Playback of Content
US-2016259620-A1 · Sep 8, 2016 · US
Obtaining Content from Direct Source and Other Source
US-2016261692-A1 · Sep 8, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04H2201/20?
- CPC H04H2201/20 is the Cooperative Patent Classification code for “digital audio broadcasting [DAB].”
- How many patents are filed under CPC H04H2201/20 (digital audio broadcasting [DAB])?
- Our database includes 167 publications tagged with this CPC code.
- Is patent activity under CPC H04H2201/20 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).