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Inventor

Kwan Fai Cheung

Inventor
Bellevue, WA, US

Overview

3→
Patents
2003–2011
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G06Fprimary
G06FElectric digital data processing25%
G10LSpeech analysis techniques or speech synthesis25%
G11BInformation storage based on relative movement between record carrier and transducer25%
H03GControl of amplification13%
H04NPictorial communication, e.g. television13%
PatentTitleYear
7,881,931'Automatic identification of sound recordings'20117,328,153'Automatic identification of sound recordings'20086,571,393'Data transmission system'2003

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2003Patents assigned to UNIV HONG KONG SCIENCE & TECHN (1)· patent assignee history
2003Based in NP, HK· patent location history
2008–2011Patents assigned to GRACENOTE INC (2)· patent assignee history
2008–2011Based in Bellevue, WA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GRACENOTE INC22008–2011
UNIV HONG KONG SCIENCE & TECHN12003
Locations
LocationPatentsSpan
Bellevue, Washington, US22008–2011
NP, HK12003