Inventor
Douglas E. Mandell
Inventor
San Francisco, CA, US
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer17%
H04NPictorial communication, e.g. television15%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them12%
G06KGraphical data reading12%
H04SStereophonic systems12%
H03GControl of amplification7%
G06FElectric digital data processing5%
H03HImpedance networks, e.g. resonant circuits5%
H03MCoding5%
H04HBroadcast communication5%
PatentTitleYear
10,911,869Variable-frequency sliding band equalization for controlling sealed loudspeaker excursion20217,448,061'Frame synchronization in an ethernet NTP time-keeping digital cinema playback system'20086,211,940'Selecting analog or digital motion picture sound tracks'20015,757,465'Storage medium for carrying information encoded in two dimensions'19985,710,752'Apparatus using one optical sensor to recover audio information from analog and digital soundtrack carried on motion picture film'19985,608,805'Dynamic loader'19975,544,140'Storage medium and apparatus and method for recovering information from such medium by oversampling'19965,390,256'Dynamic loader'19955,347,509'Recovering digital information represented by multi-dimensionally encoded symbols carried by an information storage medium'19945,046,098'Variable matrix decoder with three output channels'19914,941,177'Variable matrix decoder'19904,940,977'Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading'19904,829,299'Adaptive-filter single-bit digital encoder and decoder and adaptation control circuit responsive to bit-stream loading'19894,799,260'Variable matrix decoder'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–2008Patents assigned to DOLBY LAB LICENSING CORP (13)· patent assignee history
1989–1990Based in Menlo Park, CA, US· patent location history
1991Based in Sausalito, CA, US· patent location history
1994–2021Based in San Francisco, CA, US· patent location history
2021Patents assigned to DOLBY LABORATORIES LICENSING CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DOLBY LAB LICENSING CORP | 13 | 1989–2008 |
| DOLBY LABORATORIES LICENSING CORP | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| San Francisco, California, US | 9 | 1994–2021 |
| Menlo Park, California, US | 4 | 1989–1990 |
| Sausalito, California, US | 1 | 1991 |