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Inventor

Ju-Hee Chang

Inventor
Gyeonggi-do, KR

Overview

10→
Patents
2013–2019
Patent span
Electricity
Primary field (CPC H)

Patents· 10 as inventor

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

H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers33%
H04BTransmission24%
H04MTelephonic communication24%
G06FElectric digital data processing5%
G10KSound-producing devices5%
G10LSpeech analysis techniques or speech synthesis5%
H01RElectrically-conductive connections5%
PatentTitleYear
10,187,726Audio accessory and audio output method20199,838,517Mobile terminal without microphone hole20179,741,334'Active noise cancellation in audio output device'20179,497,531'Apparatus and method for outputting audio signal in portable terminal'20169,179,218'Mobile device for multi-channel sound collection and output using common connector, and driving method thereof'20158,914,281'Method and apparatus for processing audio signal in a mobile communication terminal'20148,724,826'Apparatus and method for outputting an audio signal in a portable terminal'20148,568,154'Structure for electronically connecting between two devices'20138,412,285'Speaker module of portable terminal and method of execution of speakerphone mode using the same'20138,369,813'Apparatus and method for reducing cross-talk between audio channels in a mobile terminal'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2019Patents assigned to SAMSUNG ELECTRONICS CO LTD (10)· patent assignee history
2013–2015Patents assigned to CHANG JU-HEE (6)· patent assignee history
2013–2015Patents assigned to JEONG SUNG-HOON (2)· patent assignee history
2013Patents assigned to HAN JUNG-EUN (1)· patent assignee history
2013–2019Based in Gyeonggi-do, KR· patent location history
2013Based in Seongnam-si, KR· patent location history
2015Patents assigned to JANG HYO-SUN (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SAMSUNG ELECTRONICS CO LTD102013–2019
CHANG JU-HEEself62013–2015
JEONG SUNG-HOON22013–2015
HAN JUNG-EUN12013
JANG HYO-SUN12015
Locations
LocationPatentsSpan
Gyeonggi-do, KR82013–2019
Seongnam-si, KR22013