Inventor · disambiguated record
Heping Ding
Also filed as: DING HEPING
14 granted patents·413 citations·filing 1996–2021
93Inventor score
Files withNAT RES COUNCIL CANADA4NORTEL NETWORKS LTD4CA NAT RESEARCH COUNCIL2NORTEL NETWORKS CORP2NORTHERN TELECOM LTD2
Top patents by PatentIndex Score
14 records- 0193US6687723B1Tri-mode adaptive filter and methodNORTEL NETWORKS LTD·Filed 2000·Granted Feb 3, 2004·67 cites·33 claims
- 0290US6754340B1Stable adaptive filter and methodNORTEL NETWORKS LTD·Filed 1998·Granted Jun 22, 2004·56 cites·36 claims
- 0389US6226380B1Method of distinguishing between echo path change and double talk conditions in an echo cancellerNORTEL NETWORKS LTD·Filed 1998·Granted May 1, 2001·125 cites·11 claims
- 0488US7330812B2Method and apparatus for transmitting an audio stream having additional payload in a hidden sub-channelCA NAT RESEARCH COUNCIL·Filed 2003·Granted Feb 12, 2008·64 cites·22 claims
- 0562US6788785B1Stable adaptive filter and methodNORTEL NETWORKS LTD·Filed 1999·Granted Sep 7, 2004·15 cites·80 claims
- 0655US6049606ACircuit and method of double talk detection for use in handsfree telephony terminalsNORTEL NETWORKS CORP·Filed 1997·Granted Apr 11, 2000·26 cites·21 claims
- 0751US6178162B1Method and apparatus for inhibiting echo in a channel of a communication systemNORTEL NETWORKS CORP·Filed 1997·Granted Jan 23, 2001·22 cites·24 claims
- 0850US12348149B2Synchronous rectification to improve efficiency of electricity conversion for harvesting energy from low voltage sourcesNAT RES COUNCIL CANADA·Filed 2021·Granted Jul 1, 2025·0 cites·19 claims
- 0950US10644044B2Methods of manufacturing printable photodetector array panelsNAT RES COUNCIL CANADA·Filed 2018·Granted May 5, 2020·0 cites·12 claims
- 1050US5838787AMethod and system for controlling echo return loss using a complementary variolosses in transmit pathNORTHERN TELECOM LTD·Filed 1996·Granted Nov 17, 1998·21 cites·6 claims
- 1147US5796818ADynamic optimization of handsfree microphone gainNORTHERN TELECOM LTD·Filed 1996·Granted Aug 18, 1998·17 cites·11 claims
- 1244US10476367B2Voltage and current triggered switch, and step-down DC-DC converters containing such a switchNAT RES COUNCIL CANADA·Filed 2018·Granted Nov 12, 2019·0 cites·22 claims
- 1342US10778104B2Efficient electricity conversion for harvesting energy from low voltage sourcesNAT RES COUNCIL CANADA·Filed 2018·Granted Sep 15, 2020·0 cites·23 claims
- 1436US7436880B2Adaptive filtering using fast affine projection adaptationCA NAT RESEARCH COUNCIL·Filed 2004·Granted Oct 14, 2008·0 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →