Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Tone generating apparatus for a cellular telephone to simulate tones normally sensed by a user of a land-line telephone

Tone generating apparatus for a cellular telephone to simulate tones normally sensed by a user of a land-line telephone

US Patent 5960363 · Granted Sep 28, 1999

Estimated economic value: $856,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Security key generation for simultaneous multiple cell connections for mobile de2020
Preventing attacks from false base stations2019
Verification of cell authenticity in a wireless network using a system query2019
Verification of cell authenticity in a wireless network through traffic monitori2019
Preventing collision of mobile session identifiers in neutral host network2019
Generation of mobile session identifier for neutral host network2019
Validating cell access mode2018
Method for interworking among wireless technologies2017
Method of providing fresh keys for message authentication2017
Using cookies to identify security contexts for connectionless service2017
Generation of multiple shared keys by user equipment and base station using key 2017
Manipulation and restoration of authentication challenge parameters in network a2017