Inventor
Norman C. Chan
Inventor
Louisville, CO, US
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Lprimary
H04LTransmission of digital information, e.g. telegraphic communication25%
H04MTelephonic communication25%
H04QSelecting21%
H04JMultiplex communication7%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%
G06FElectric digital data processing4%
G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes4%
H04BTransmission4%
LOC214%
PatentTitleYear
10,607,245Recommending virtual reward offers and awarding virtual rewards2020D0815212Chess board design20187,362,702'Router with routing processors and methods for virtualization'20087,292,567'Router and methods for distributed virtualization'20077,200,144'Router and methods using network addresses for virtualization'20077,130,793'System and method for minimizing overrun and underrun errors in packetized voice transmission'20067,106,856'Method and apparatus for performing echo cancellation within a communication network'20066,925,166'Method and apparatus for generating automatic greetings in a call center'20056,870,807'Method and apparatus for suppressing music on hold'20056,697,456'Speech analysis based answer detection for IP based telephones'20046,470,077'Apparatus and method for storage and accelerated playback of voice samples in a call center'20026,424,651'Arrangement for performing automatic build out in a communications system that supports multiple constant-bit-rate connections'20025,897,613'Efficient transmission of voice silence intervals'19995,781,615'Fully distributed message storage facilities in a distributed switching system'19985,659,541'Reducing delay in packetized voice'19975,136,707'Reliable database administration arrangement'19924,959,856'Automatic administration of a telecommunication system'19904,653,085'Telephone switching system adjunct call processing arrangement'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987Patents assigned to AT & T CO (1)· patent assignee history
1987–2006Based in Louisville, CO, US· patent location history
1990–1992Patents assigned to AT & T BELL LAB (2)· patent assignee history
1997–1999Patents assigned to LUCENT TECHNOLOGIES INC (3)· patent assignee history
2002–2006Patents assigned to AVAYA TECHNOLOGY CORP (7)· patent assignee history
2007–2008Patents assigned to QLOGIC CORP (3)· patent assignee history
2007–2008Based in Diamond Bar, CA, US· patent location history
2018Based in New York, NY, US· patent location history
2020Based in Belmont, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| AVAYA TECHNOLOGY CORP | 7 | 2002–2006 |
| LUCENT TECHNOLOGIES INC | 3 | 1997–1999 |
| QLOGIC CORP | 3 | 2007–2008 |
| AT & T BELL LAB | 2 | 1990–1992 |
| AT & T CO | 1 | 1987 |
Locations
| Location | Patents | Span |
|---|---|---|
| Louisville, CO, US | 13 | 1987–2006 |
| Diamond Bar, California, US | 3 | 2007–2008 |
| Belmont, California, US | 1 | 2020 |
| New York, New York, US | 1 | 2018 |