Transformerless demodulation of synchro-resolver
US-2026056035-A1 · Feb 26, 2026 · US
for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence)
for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence) · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H03M1/645 |
| Official title | {for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence)} |
| Display label | for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence) |
| 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 | 6 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 6 |
| 2019 | 3 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Timer-based resolver integral demodulation
US-12388461-B2 · Aug 12, 2025 · US
Timer-based resolver integral demodulation
US-2024313798-A1 · Sep 19, 2024 · US
Interconnected inverter and method of manufacturing interconnected inverter
US-11984909-B2 · May 14, 2024 · US
Resolver converter and motor control device
US-11881806-B2 · Jan 23, 2024 · US
Resolver converter and motor control device
US-2022302858-A1 · Sep 22, 2022 · US
Interconnected inverter and method of manufacturing interconnected inverter
US-2022294464-A1 · Sep 15, 2022 · US
Motor control system and semiconductor device
US-11214297-B2 · Jan 4, 2022 · US
Resolver signal processing
US-11177987-B1 · Nov 16, 2021 · US
Resolver signal processing circuit
US-2021041508-A1 · Feb 11, 2021 · US
A/D conversion circuit with shifted encode values
US-10840938-B2 · Nov 17, 2020 · US
Method for processing a measured-value signal determined in an analog manner, a resolver system for implementing the method and a method for determining an output current of a converter
US-10735022-B2 · Aug 4, 2020 · US
A/d conversion circuit
US-2020204189-A1 · Jun 25, 2020 · US
Method for processing a measured-value signal determined in an analog manner, a resolver system for implementing the method and a method for determining an output current of a converter
US-2020044662-A1 · Feb 6, 2020 · US
Semiconductor device
US-10530383-B2 · Jan 7, 2020 · US
Method for processing a measured-value signal determined in an analog manner, a resolver system for implementing the method and a method for determining an output current of a converter
US-10454494-B2 · Oct 22, 2019 · US
Motor control system and method for detecting abnormality in resolver/digital converter
US-10374541-B2 · Aug 6, 2019 · US
Analog converter for motor angle sensor
US-10218378-B1 · Feb 26, 2019 · US
Motor control system and method for detecting abnormality in resolver/digital converter
US-2018342972-A1 · Nov 29, 2018 · US
Motor control system and semiconductor device
US-2018339724-A1 · Nov 29, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H03M1/645?
- CPC H03M1/645 is the Cooperative Patent Classification code for “for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence).”
- How many patents are filed under CPC H03M1/645 (for position encoding, e.g. using resolvers or synchros (H03M1/485 takes precedence))?
- Our database includes 35 publications tagged with this CPC code.
- Is patent activity under CPC H03M1/645 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).