Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Off-hook signal and dial pulse generating circuit and a method for driving the same circuit

Off-hook signal and dial pulse generating circuit and a method for driving the same circuit

US Patent 5937030 · Granted Aug 10, 1999

Estimated economic value: $11,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Tire wear measuring device and power generating device2025
Wear measurement device and wear measurement method for tire2024
Magnetic sensor2017
Rotation detector2016
Shift lever device using magnetism detection switch2016
Motor controller2016
Amplifier circuit2011
Zero crossing detection circuit2005
Telemetering apparatus2002
Telemetering apparatus2002
Telemetering apparatus2002
Telemetering apparatus2000