Inventor

Zhiwu Liu

Inventor
Beijing, CN

Overview

5→
Patents
2004–2021
Patent span
Physics
Primary field (CPC G)

Patents· 5 as inventor

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

G10Lprimary
G10LSpeech analysis techniques or speech synthesis29%
G01RMeasuring electric variables14%
G06FElectric digital data processing14%
H03MCoding14%
H04SStereophonic systems14%
LOC1014%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2005Patents assigned to CYPRESS SEMICONDUCTOR CORP (2)· patent assignee history
2004Based in San Jose, CA, US· patent location history
2005Based in Fremont, CA, US· patent location history
2019Patents assigned to SZ BLUE SCIENCE INTELLIGENT TECH CO LTD (1)· patent assignee history
2019Based in Shenzhen, CN· patent location history
2021Patents assigned to HUAWEI TECH CO LTD (2)· patent assignee history
2021Based in Beijing, CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CYPRESS SEMICONDUCTOR CORP22004–2005
HUAWEI TECH CO LTD22021
SZ BLUE SCIENCE INTELLIGENT TECH CO LTD12019
Locations
LocationPatentsSpan
Beijing, CN22021
Shenzhen, CN12019
Fremont, California, US12005
San Jose, California, US12004