Inventor

CHEA JR RAMON C W

US25 patents

⚠️ This page may combine multiple inventors who share the name “CHEA JR RAMON C W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CHEA JR RAMON C W

TURNSTONE SYSTEMS INC

Voice over DSL method and system for supporting a lifeline

Remotely actuated splittler bypass system and method

Method and system for supporting a lifeline associated with voice over DSL

Physical architecture for design of high density metallic cross connect systems

Enabling and powering of remotely actuated bypass splitters

Structure and circuit topology for a remotely actuated bypass splitter

Method and apparatus for detecting and locating a fault in a telecommunications environment

Remotely addressable maintenance unit

Systems and methods for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices

Protection of double end exposed systems

Battery injection and loop supervision for DSL environment

Method and apparatus for generating an audible tone in DSL environment

Protection of double end exposed systems

Smart cable for design of high density metallic cross connect systems

Circuit topology for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices

ITT

Programmable ring signal generator

Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems

Solid state telephone line interface circuit with ringing capability

Programmable ring signal generator

Telephone line circuit and system

Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry

Interface circuit for a subscriber line circuit

Analog subscriber/trunk module with shared ringing source and ring-trip

Dual voltage source feed circuit configuration for a telephone line circuit

Signal coding for compressed pulse code modulation system