Inventor
John Justin Caffrey
Inventor
Indianapolis, IN, US
Overview
Patents· 4 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%
G11BInformation storage based on relative movement between record carrier and transducer13%
H04QSelecting13%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers13%
H04SStereophonic systems13%
PatentTitleYear
8,340,313'Wireless digital transmission of low frequency effects and surround channels for surround sound system'20127,171,156'Method and apparatus for transmitting audio and non-audio information with error correction'20076,697,471'Extension phone off-hook check for Type 2 Caller ID reception in a telephone adjunct device'20046,298,128'Unified directory for caller ID and electronic mail addresses'2001Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2001–2004Patents assigned to THOMSON LICENSING SA (2)· patent assignee history
2001–2012Based in Indianapolis, IN, US· patent location history
2007–2012Patents assigned to THOMSON LICENSING (2)· patent assignee history
2012Patents assigned to CAFFREY JOHN JUSTIN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| THOMSON LICENSING | 2 | 2007–2012 |
| THOMSON LICENSING SA | 2 | 2001–2004 |
| CAFFREY JOHN JUSTINself | 1 | 2012 |
Locations
| Location | Patents | Span |
|---|---|---|
| Indianapolis, IN, US | 4 | 2001–2012 |