Inventor

HALL CLIFFORD L

US12 patents

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

CISCO TECH IND

5 patents

US6014431AJan 11, 2000

Communication server apparatus having four-wire switching interface and method

CISCO TECH IND116 citations97

US5905781AMay 18, 1999

Communication server apparatus and method

CISCO TECH IND225 citations97

US5898761AApr 27, 1999

Communication server apparatus using digital signal switching and method

CISCO TECH IND137 citations97

US6169788B1Jan 2, 2001

Communication server apparatus having distributed switching and method

CISCO TECH IND30 citations92

US6282273B1Aug 28, 2001

Communication server apparatus using frequency multiplexing and method

CISCO TECH IND10 citations73

ADTRAN CORP

2 patents

US5327433AJul 5, 1994

Digital tandem channel unit interface for telecommunications network

ADTRAN CORP57 citations95

US5337306AAug 9, 1994

Digital tandem channel unit interface for telecommunications network

ADTRAN CORP30 citations91

ADTRAN INC

2 patents

US5661778AAug 26, 1997

Performance monitoring of DSO channel via D4 channel bank

ADTRAN INC37 citations90

US5822398AOct 13, 1998

Control of operating states of channel unit installed in performance monitoring capable D4 channel bank

ADTRAN INC10 citations72

CISCO SYSTEMS INC

1 patent

US5852655ADec 22, 1998

Communication server apparatus having distributed switching and method

CISCO SYSTEMS INC140 citations98

NETSPEED INC

1 patent

US5781617AJul 14, 1998

Communication server apparatus using frequency multiplexing and method

NETSPEED INC163 citations97

ADTRAN

1 patent

US5473665ADec 5, 1995

Performance monitoring of DS0 channel via D4 channel bank

ADTRAN26 citations90