Method for transmitting audio data by using short-range wireless communication in wireless communication system, and apparatus for same
US-2024276354-A1 · Aug 15, 2024 · US
Stereophonic broadcast systems {(multiplex system in general H04J)}
Stereophonic broadcast systems {(multiplex system in general H04J)} · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04H20/88 |
| Official title | Stereophonic broadcast systems {(multiplex system in general H04J)} |
| Display label | Stereophonic broadcast systems {(multiplex system in general H04J)} |
| Total patents | 35 |
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 | 7 |
| 2016 | 10 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 4 |
| 2020 | 2 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Audio request interaction system
US-11656841-B2 · May 23, 2023 · US
Low complexity dense transient events detection and coding
US-11232804-B2 · Jan 25, 2022 · US
Audio request interaction system
US-10824393-B2 · Nov 3, 2020 · US
Low Complexity Dense Transient Events Detection and Coding
US-2020126572-A1 · Apr 23, 2020 · US
Audio request interaction system
US-2019243607-A1 · Aug 8, 2019 · US
Audio request interaction system
US-10303434-B2 · May 28, 2019 · US
Audio request interaction system
US-2019107997-A1 · Apr 11, 2019 · US
Audio request interaction system
US-10175939-B2 · Jan 8, 2019 · US
Internet radio stream generation
US-10009130-B1 · Jun 26, 2018 · US
Using single-channel/multi-channel transitions to output an alert indicating a functional state of a back-up audio-broadcast system
US-9942679-B2 · Apr 10, 2018 · US
System and method for blending multi-channel signals
US-9837061-B2 · Dec 5, 2017 · US
Tagging language for broadcast radio
US-2017302391-A9 · Oct 19, 2017 · US
Synchronization of multi-channel audio communicated over bluetooth low energy
US-9712266-B2 · Jul 18, 2017 · US
Method to geo-tag streaming music
US-9660746-B2 · May 23, 2017 · US
Fam transmitting apparatus and method for combining fm signal and digital modulated am signal
US-2017126341-A1 · May 4, 2017 · US
Method and apparatus for analog and digital audio blend for HD radio receivers
US-9596044-B2 · Mar 14, 2017 · US
Using Single-Channel/Multi-Channel Transitions to Output an Alert Indicating a Functional State of a Back-Up Audio-Broadcast System
US-2017064480-A1 · Mar 2, 2017 · US
Using single-channel/multi-channel transitions to output an alert indicating a functional state of a back-up audio-broadcast system
US-9531488-B2 · Dec 27, 2016 · US
Method and apparatus for generating a stereo signal from a down-mixed mono signal
US-9508353-B2 · Nov 29, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04H20/88?
- CPC H04H20/88 is the Cooperative Patent Classification code for “Stereophonic broadcast systems {(multiplex system in general H04J)}.”
- How many patents are filed under CPC H04H20/88 (Stereophonic broadcast systems {(multiplex system in general H04J)})?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC H04H20/88 growing?
- Publication counts under this code: 1 in 2023 vs 1 in 2024 (latest complete years).