Inventor

Zhengzhong Du

Inventor
Shenzhen, CN

Overview

10→
Patents
2009–2019
Patent span
Physics
Primary field (CPC G)

Patents· 10 as inventor

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

G10Lprimary
G10LSpeech analysis techniques or speech synthesis50%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers13%
G06FElectric digital data processing6%
G11BInformation storage based on relative movement between record carrier and transducer6%
H04LTransmission of digital information, e.g. telegraphic communication6%
H04MTelephonic communication6%
H04NPictorial communication, e.g. television6%
H04SStereophonic systems6%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2009–2019Patents assigned to HUAWEI TECH CO LTD (10)· patent assignee history
2009–2019Based in Shenzhen, CN· patent location history
2012–2013Patents assigned to DU ZHENGZHONG (5)· patent assignee history
2012–2013Patents assigned to XU JIANFENG (5)· patent assignee history
2012–2013Patents assigned to ZHANG QING (5)· patent assignee history
2012Patents assigned to HU CHEN (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUAWEI TECH CO LTD102009–2019
DU ZHENGZHONGself52012–2013
XU JIANFENG52012–2013
ZHANG QING52012–2013
HU CHEN42012
Locations
LocationPatentsSpan
Shenzhen, CN102009–2019