Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Methods and systems for intelligibility measurement of audio announcement systems

Methods and systems for intelligibility measurement of audio announcement systems

US Patent 7433821 · Granted Oct 7, 2008

Estimated economic value: $9,843,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Operating a fire system network2023
Operating a fire system network2022
Wi-Fi mesh fire detection system2020
Portable encoded information reading terminal configured to locate groups of RFI2019
Reading RFID tags in defined spatial locations2019
Portable encoded information reading terminal configured to adjust transmit powe2018
Bidirectional redundant mesh networks2018
Synchronization of wirelessly controlled notification devices using wireless com2018
System and method for calibration and mapping of real-time location data2018
Systems and methods to increase battery life in and identify misuse of a wireles2018
Initial point establishment using an image of a portion of an object2018
System and method of self-monitoring notification appliances2018