Inventor
David Koo
Inventor
Briarcliff Manor, NY, 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 communication34%
H04NPictorial communication, e.g. television34%
G06FElectric digital data processing14%
H03HImpedance networks, e.g. resonant circuits6%
G08BSignalling systems, e.g. personal calling systems3%
G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data3%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications3%
Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use3%
PatentTitleYear
9,377,842'Method and apparatus for realizing CPU power conservation'20169,335,904'Context dependent application/event activation for people with various cognitive ability levels'20167,010,269'Pre-equalizer structure based on PN511 sequence for terrestrial DTV reception'20066,952,238'Method and apparatus for echo cancellation in digital ATV systems using an echo cancellation reference signal'20056,898,614'Round-off algorithm without bias for 2\'s complement data'20056,806,915'Method and apparatus for echo cancellation in digital communications using an echo cancellation reference signal'20046,687,317'Method for correlation directed echo cancellation and channel equalization for the digital transmission link in vestigial side band amplitude modulation'20046,133,963'System for echo cancellation comprising an improved ghost cancellation reference signal'20005,568,202'System for echo cancellation comprising an improved ghost cancellation reference signal'19965,283,650'System for ghost cancellation comprising an improved GCR signal sequence'19945,179,444'System for echo cancellation comprising an improved ghost cancellation reference signal'19935,172,232'Method and apparatus for communication channel identification and signal restoration'19925,121,211'System for echo cancellation comprising an improved ghost cancellation reference signal'19925,111,298'Method and apparatus for communication channel identification and signal restoration'19925,047,859'Method and apparatus for communication channel identification and signal restoration'19914,791,597'Multiplierless FIR digital filter with two to the Nth power coefficients'19884,782,458'Architecture for power of two coefficient FIR filter'19884,665,438'Picture-in-picture color television receiver'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–1996Patents assigned to PHILIPS CORP (10)· patent assignee history
1987–1996Based in Briarcliff Manor, NY, US· patent location history
2000Patents assigned to PHILIPS ELECTRONICS NA (1)· patent assignee history
2000–2006Based in Carmel, NY, US· patent location history
2004–2006Patents assigned to KONINKL PHILIPS ELECTRONICS NV (5)· patent assignee history
2016Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history
2016Patents assigned to PANASONIC CORP NORTH AMERICA (1)· patent assignee history
2016Based in Shenzhen, CN· patent location history
2016Based in Exeter, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PHILIPS CORP | 10 | 1987–1996 |
| KONINKL PHILIPS ELECTRONICS NV | 5 | 2004–2006 |
| HUAWEI TECH CO LTD | 1 | 2016 |
| PANASONIC CORP NORTH AMERICA | 1 | 2016 |
| PHILIPS ELECTRONICS NA | 1 | 2000 |
Locations
| Location | Patents | Span |
|---|---|---|
| Briarcliff Manor, New York, US | 10 | 1987–1996 |
| Carmel, New York, US | 6 | 2000–2006 |
| Shenzhen, CN | 1 | 2016 |
| Exeter, California, US | 1 | 2016 |