Daniel M. Joffe
69Patents
9h-index
37Co-inventors
78Inventor score
Filing activity: Apr 28, 1982 → Feb 2, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5856758A | Low distortion driver employing positive feedback for reducing power loss in output impedance that effectively matches the impedance of driven line | Electricity | 115 | Expired |
| US8601289B1 | Optical network unit with redundant reverse powering from customer premises equipment | Electricity | 26 | Active |
| US7593494B1 | System and method for canceling impulse noise | Electricity | 12 | Active |
| US4454477A | Loop current detector with threshold setting impedance | Electricity | 12 | Expired |
| US7809076B1 | Adaptive interference canceling system and method | Electricity | 11 | Active |
| US5014307A | Method and apparatus for echo canceler disablement | Electricity | 11 | Expired |
| US6437574B1 | Auxiliary battery test and alarm system for telecommunication equipment | Physics | 10 | Expired |
| US4995076A | Call progress capability for a switched channel data service unit | Electricity | 10 | Expired |
| US6359505B1 | Complementary pair-configured telecommunication line driver having synthesized output impedance | Electricity | 9 | Expired |
| US8606117B1 | Systems and methods for unobtrusively testing optical fibers | Electricity | 9 | Active |
| US6975706B1 | Capacitance measurement-based mechanism for locating open telecommunication line fault | Electricity | 8 | Expired |
| US6580327B1 | Electronically controllable slope equalizer | Electricity | 7 | Expired |
| US9503185B2 | Systems and methods for communications across drop connections | Electricity | 6 | Active |
| US9362959B2 | Data processing in a digital subscriber line environment | Electricity | 6 | Active |
| US8400220B1 | Quiescent current control for class AB output stages | Electricity | 6 | Active |
| US9380152B2 | Systems and methods for providing back power to a service unit | Electricity | 6 | Active |
| US9354690B1 | Systems and methods for adjusting core voltage to optimize power savings | Emerging Cross-Sectional Technologies | 6 | Active |
| US7478029B1 | Cable simulation device and method | Electricity | 6 | Expired |
| US8901475B1 | Avalanche photodiode biasing system including a current mirror, voltage-to-current converter circuit, and a feedback path sensing an avalanche photodiode voltage | Electricity | 6 | Active |
| US7773744B1 | System and method for terminating sealing current | Electricity | 5 | Active |
| US6542604B1 | Scaled impedance replica for echo attenuation in digital transmission systems | Electricity | 5 | Expired |
| US6757383B1 | Compact cable balance network for echo-cancelling, and method for optimizing transhybrid loss and method and apparatus for circuit simulation | Electricity | 4 | Expired |
| US6937095B2 | Efficient, switched linear signal driver | Electricity | 4 | Expired |
| US5457690A | DTMF Signaling on four-wire switched 56 Kbps Lines | Electricity | 4 | Expired |
| US9614976B2 | Systems and methods for powering network access devices from customer premises equipment | Emerging Cross-Sectional Technologies | 3 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.