Inventor
FEINER ALEXANDER
10 patents
⚠️ This page may combine multiple inventors who share the name “FEINER ALEXANDER”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BELL TELEPHONE LABOR INC
6 patentsUS4190747AFeb 26, 1980
Signal corrected optocoupled device
BELL TELEPHONE LABOR INC23 citations80
US4228323AOct 14, 1980
Variable loop length compensated barrier circuit
BELL TELEPHONE LABOR INC16 citations72
US4219701AAug 26, 1980
Tone generating hold impedance circuit for key telephone line circuits
BELL TELEPHONE LABOR INC7 citations72
US3978293AAug 31, 1976
Ringing control circuitry with shared ringing loop current detector
BELL TELEPHONE LABOR INC10 citations72
US3951248AApr 20, 1976
Telephone line visual status indication circuit
BELL TELEPHONE LABOR INC18 citations69
US4149042AApr 10, 1979
Modulated RF carrier distributing arrangement for key telephone line circuits
BELL TELEPHONE LABOR INC5 citations59