Inventor · disambiguated record
David H. A. Black
Also filed as: BLACK DAVID H A
6 granted patents·95 citations·filing 1980–1991
84Inventor score
Top patents by PatentIndex Score
6 records- 0168US4347620AMethod of and apparatus for regenerating a signal frequency in a digital signal transmission systemNORTHERN TELECOM LTD·Filed 1980·Granted Aug 31, 1982·23 cites·8 claims
- 0260US5351239ADigital data transmission systemNEWBRIDGE NETWORKS CORP·Filed 1991·Granted Sep 27, 1994·34 cites·15 claims
- 0357US4363122AMitigation of noise signal contrast in a digital speech interpolation transmission systemNORTHERN TELECOM LTD·Filed 1980·Granted Dec 7, 1982·14 cites·14 claims
- 0447US4408324ANoise signal level control in a TASI systemBLACK DAVID H A·Filed 1980·Granted Oct 4, 1983·11 cites·7 claims
- 0541US4382296ABuffering speech signals in a TASI systemNORTHERN TELECOM LTD·Filed 1980·Granted May 3, 1983·8 cites·17 claims
- 0640US4627049ATASI system including an order wireNORTHERN TELECOM LTD·Filed 1980·Granted Dec 2, 1986·5 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →