Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Methods for communicating with a telecommunications device for the deaf

Methods for communicating with a telecommunications device for the deaf

US Patent 5670957 · Granted Sep 23, 1997

Estimated economic value: $473,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Automated announcement system1996
Automated telephone system with TDD capability1996
Detection of TDD signals in an automated telephone system1996
Telecommunications system for transferring calls without a private branch exchan1995
Automated telephone system using multiple languages1995
Automated telephone system using multiple languages1995
Software switch for digitized audio signals1992
Software switch for digitized audio signals1992
Restaurant video display system1983