Inventor
James A. Delwiche
Inventor
Grass Valley, CA, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Nprimary
H04NPictorial communication, e.g. television42%
G09GArrangements or circuits for control of indicating devices using static means to present variable information21%
G06FElectric digital data processing16%
H04LTransmission of digital information, e.g. telegraphic communication16%
G11BInformation storage based on relative movement between record carrier and transducer5%
PatentTitleYear
8,838,825'Synchronized transmission of audio and video data from a computer to a client via an interface'20147,970,926'Synchronized transmission of audio and video data from a computer to a client via an interface'20117,668,099'Synthesis of vertical blanking signal'20107,353,284'Synchronized transmission of audio and video data from a computer to a client via an interface'20085,850,267'Non-additive video mixer'19985,719,988'Dynamically paged non-volatile random access video store'19985,251,016'Chroma keyer with secondary hue selector'19935,235,423'Controllable pseudo random noise pattern generator for use in video special effects'19934,965,668'Adaptive rounder for video signals'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1993Patents assigned to GRASS VALLEY GROUP (3)· patent assignee history
1990–2014Based in Grass Valley, CA, US· patent location history
1998Patents assigned to TEKTRONIX INC (2)· patent assignee history
2008–2014Patents assigned to APPLE INC (4)· patent assignee history
2014Patents assigned to ABT JOHN O (1)· patent assignee history
2014Patents assigned to AGNOLI GIOVANNI M (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| APPLE INC | 4 | 2008–2014 |
| GRASS VALLEY GROUP | 3 | 1990–1993 |
| TEKTRONIX INC | 2 | 1998 |
| ABT JOHN O | 1 | 2014 |
| AGNOLI GIOVANNI M | 1 | 2014 |
Locations
| Location | Patents | Span |
|---|---|---|
| Grass Valley, California, US | 9 | 1990–2014 |