Serial communication interface circuit performing external loopback test and electrical device including the same
US-2018359060-A1 · Dec 13, 2018 · US
test sequence generators
test sequence generators · Cooperative Patent Classification (CPC)
Electric circuits, power, telecommunications, and semiconductors.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | H04L1/244 |
| Official title | {test sequence generators} |
| Display label | test sequence generators |
| Total patents | 128 |
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 | 19 |
| 2016 | 13 |
| 2017 | 15 |
| 2018 | 18 |
| 2019 | 11 |
| 2020 | 14 |
| 2021 | 12 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 4 |
| 2025 | 3 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Bias Removal in PRBS Based Channel Estimation
US-2018351667-A1 · Dec 6, 2018 · US
Network link monitoring and testing
US-10103851-B2 · Oct 16, 2018 · US
Error measurement method using a time-variant stopband test signal
US-2018278344-A1 · Sep 27, 2018 · US
Vehicle communication module and diagnostic device and method for testing thereof
US-2018279141-A1 · Sep 27, 2018 · US
Bias removal in PRBS based channel estimation
US-10075250-B2 · Sep 11, 2018 · US
Communications link performance analyzer that accommodates forward error correction
US-10063305-B2 · Aug 28, 2018 · US
Method and System For An Optoelectronic Built-In Self-Test System For Silicon Photonics Optical Transceivers
US-2018241517-A1 · Aug 23, 2018 · US
Joint estimation of coefficients for skew, gain imbalance and channel response for signal sources
US-10057020-B2 · Aug 21, 2018 · US
Method and system for an optoelectronic built-in self-test system for silicon photonics optical transceivers
US-9960888-B2 · May 1, 2018 · US
Forward error correction with optical and electrical transponder
US-2018076925-A1 · Mar 15, 2018 · US
Method for monitoring communication between a transmitter and a receiver
US-9906970-B2 · Feb 27, 2018 · US
Method and device for synchronizng input/output signals by radio frequency unit in wireless communication system
US-2018013542-A1 · Jan 11, 2018 · US
Asynchronous feedback training
US-2017373788-A1 · Dec 28, 2017 · US
Transmitter noise in system budget
US-9825736-B2 · Nov 21, 2017 · US
Measuring amplitude and phase response of measurement instrument with binary phase shift keying test signal
US-2017317792-A1 · Nov 2, 2017 · US
Network link monitoring and testing
US-2017310432-A1 · Oct 26, 2017 · US
Generating and checking a quaternary pseudo random binary sequence
US-9755792-B1 · Sep 5, 2017 · US
Method for wireless communications testing using downlink and uplink transmissions between an access point and mobile terminals
US-9749097-B2 · Aug 29, 2017 · US
Apparatus, portable apparatus and method for detecting passive intermodulation
US-2017230129-A1 · Aug 10, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC H04L1/244?
- CPC H04L1/244 is the Cooperative Patent Classification code for “test sequence generators.”
- How many patents are filed under CPC H04L1/244 (test sequence generators)?
- Our database includes 128 publications tagged with this CPC code.
- Is patent activity under CPC H04L1/244 growing?
- Publication counts under this code: 4 in 2024 vs 3 in 2025 (latest complete years).