Method and apparatus for level control in blending an audio signal in an in-band on-channel radio system
US-RE49210-E · Sep 13, 2022 · US
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specially adapted for stereophonic broadcast systems
specially adapted for stereophonic broadcast systems · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04H20/47 |
| Official title | specially adapted for stereophonic broadcast systems |
| Display label | specially adapted for stereophonic broadcast systems |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 1 |
| 2022 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Broadcast receiving apparatus and broadcast receiving method
US-10171191-B2 · Jan 1, 2019 · US
Stereo-phonic frequency modulation receiver and method for separating dual sound channels
US-10026409-B2 · Jul 17, 2018 · US
Broadcast receiving apparatus and broadcast receiving method
US-2018109340-A1 · Apr 19, 2018 · US
Synchronization of signals for multiple data sinks
US-9877130-B2 · Jan 23, 2018 · US
Stereo-phonic frequency modulation receiver and method for separating dual sound channels
US-2018018976-A1 · Jan 18, 2018 · US
Tagging language for broadcast radio
US-2017302391-A9 · Oct 19, 2017 · US
Method and apparatus for level control in blending an audio signal in an in-band on-channel radio system
US-9755598-B2 · Sep 5, 2017 · US
Method and apparatus for level control in blending an audio signal in an in-band on-channel radio system
US-2017179899-A1 · Jun 22, 2017 · US
Audio broadcast sources switching by geographic location
US-9438359-B2 · Sep 6, 2016 · US
Tagging language for broadcast radio
US-2016105249-A1 · Apr 14, 2016 · US
Circuits and methods to reduce pin count of a single channel device with a multi-channel serial interface
US-9064062-B2 · Jun 23, 2015 · US
Audio broacast sources switching by geographic location
US-2015124971-A1 · May 7, 2015 · US