Chea, Jr.; Ramon C. W.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Chea, Jr.; Ramon C. W..The latest application filed is for "smart cable for design of high density metallic cross connect systems".

Company Profile

0.23.0

Chea, Jr.; Ramon C. W. - San Jose CA
Chea, Jr.; Ramon C. W. - Monroe CT

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Smart cable for design of high density metallic cross connect systems Grant 6,937,157 - Chea, Jr. , et al. August 30, 2	2005-08-30
Physical architecture for design of high density metallic cross connect systems Grant 6,903,939 - Chea, Jr. , et al. June 7, 2	2005-06-07
Protection of double end exposed systems Grant 6,870,724 - Chea, Jr. March 22, 2	2005-03-22
Method and apparatus for generating an audible tone in DSL environment Grant 6,741,675 - Chea, Jr. , et al. May 25, 2	2004-05-25
Protection of double end exposed systems Grant 6,700,770 - Chea, Jr. March 2, 2	2004-03-02
Circuit topology for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices Grant 6,683,768 - Chea, Jr. January 27, 2	2004-01-27
Systems and methods for protecting vulnerable micro electro-mechanical system (MEMS) and electronic relay devices Grant 6,671,149 - Chea, Jr. , et al. December 30, 2	2003-12-30
Voice over DSL method and system for supporting a lifeline Grant 6,574,313 - Chea, Jr. , et al. June 3, 2	2003-06-03
Remotely actuated splittler bypass system and method Grant 6,574,309 - Chea, Jr. , et al. June 3, 2	2003-06-03
Enabling and powering of remotely actuated bypass splitters Grant 6,553,105 - Chea, Jr. , et al. April 22, 2	2003-04-22
Structure and circuit topology for a remotely actuated bypass splitter Grant 6,480,575 - Chea, Jr. , et al. November 12, 2	2002-11-12
Method and apparatus for detecting and locating a fault in a telecommunications environment Grant 6,453,016 - Chea, Jr. September 17, 2	2002-09-17
Battery injection and loop supervision for DSL environment Grant 6,292,540 - Chea, Jr. , et al. September 18, 2	2001-09-18
Wide-band high voltage amplifier for telephone exchange subscriber line interface utilizing low voltage control circuitry Grant 4,674,119 - Chea, Jr. June 16, 1	1987-06-16
Programmable ring signal generator Grant 4,656,659 - Chea, Jr. April 7, 1	1987-04-07
Dual voltage source feed circuit configuration for a telephone line circuit Grant 4,602,130 - Chea, Jr. July 22, 1	1986-07-22
Telephone line circuit and system Grant 4,456,991 - Chea, Jr. , et al. June 26, 1	1984-06-26
Analog subscriber/trunk module with shared ringing source and ring-trip Grant 4,435,803 - Das , et al. March 6, 1	1984-03-06
Subscriber line interface circuit with impedance synthesizer Grant 4,387,273 - Chea, Jr. June 7, 1	1983-06-07
Programmable ring signal generator Grant 4,349,703 - Chea, Jr. September 14, 1	1982-09-14
Subscriber line interface circuit utilizing impedance synthesizer and shared voltage source for loop current regulation control Grant 4,317,963 - Chea, Jr. March 2, 1	1982-03-02
Apparatus for regulating current supplied to a telephone line signal of the type employed in digital telephone systems Grant 4,315,106 - Chea, Jr. February 9, 1	1982-02-09
Signal coding for compressed pulse code modulation system Grant 4,150,368 - Chea, Jr. April 17, 1	1979-04-17

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