TW201614455A - Digital demodulator and digital demodulating method - Google Patents

Digital demodulator and digital demodulating method

Info

Publication number
TW201614455A
TW201614455A TW104143681A TW104143681A TW201614455A TW 201614455 A TW201614455 A TW 201614455A TW 104143681 A TW104143681 A TW 104143681A TW 104143681 A TW104143681 A TW 104143681A TW 201614455 A TW201614455 A TW 201614455A
Authority
TW
Taiwan
Prior art keywords
signal
digital
quadrature
phase
generate
Prior art date
Application number
TW104143681A
Other languages
English (en)
Other versions
TWI576741B (zh
Inventor
Chin-Fu Chang
Original Assignee
Egalax Empia Technology Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Egalax Empia Technology Inc filed Critical Egalax Empia Technology Inc
Publication of TW201614455A publication Critical patent/TW201614455A/zh
Application granted granted Critical
Publication of TWI576741B publication Critical patent/TWI576741B/zh

Links

Landscapes

  • Position Input By Displaying (AREA)
  • Telephone Function (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
TW104143681A 2013-11-08 2013-12-31 數位解調變器及數位解調變方法 TWI576741B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201361902137P 2013-11-08 2013-11-08

Publications (2)

Publication Number Publication Date
TW201614455A true TW201614455A (en) 2016-04-16
TWI576741B TWI576741B (zh) 2017-04-01

Family

ID=53720953

Family Applications (8)

Application Number Title Priority Date Filing Date
TW102149225A TWI539339B (zh) 2013-11-08 2013-12-31 觸控處理裝置及其方法
TW104143681A TWI576741B (zh) 2013-11-08 2013-12-31 數位解調變器及數位解調變方法
TW102149227A TWI521404B (zh) 2013-11-08 2013-12-31 偵測近接於觸控裝置的發信器之方法、裝置、與系統
TW102149230A TWI605371B (zh) 2013-11-08 2013-12-31 發信器與其發信方法
TW102149229A TWI540472B (zh) 2013-11-08 2013-12-31 發信器及其發信方法
TW102149232A TWI525524B (zh) 2013-11-08 2013-12-31 同時發信的發信器組合與其發信方法及觸控系統
TW102149224A TWI521403B (zh) 2013-11-08 2013-12-31 處理裝置與處理方法
TW103132380A TWI514205B (zh) 2013-11-08 2014-09-19 發信器、觸控系統及其發信方法

Family Applications Before (1)

Application Number Title Priority Date Filing Date
TW102149225A TWI539339B (zh) 2013-11-08 2013-12-31 觸控處理裝置及其方法

Family Applications After (6)

Application Number Title Priority Date Filing Date
TW102149227A TWI521404B (zh) 2013-11-08 2013-12-31 偵測近接於觸控裝置的發信器之方法、裝置、與系統
TW102149230A TWI605371B (zh) 2013-11-08 2013-12-31 發信器與其發信方法
TW102149229A TWI540472B (zh) 2013-11-08 2013-12-31 發信器及其發信方法
TW102149232A TWI525524B (zh) 2013-11-08 2013-12-31 同時發信的發信器組合與其發信方法及觸控系統
TW102149224A TWI521403B (zh) 2013-11-08 2013-12-31 處理裝置與處理方法
TW103132380A TWI514205B (zh) 2013-11-08 2014-09-19 發信器、觸控系統及其發信方法

Country Status (1)

Country Link
TW (8) TWI539339B (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI630528B (zh) * 2017-09-14 2018-07-21 奇景光電股份有限公司 電子裝置、接收電路與觸控訊號的處理方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10528182B2 (en) * 2018-01-19 2020-01-07 Tactual Labs Co. Matrix sensors
TWI667596B (zh) * 2018-01-30 2019-08-01 幸芯科技有限公司 Active stylus and wireless signal generating method thereof
CN110392161B (zh) * 2018-04-23 2021-09-03 敦泰电子有限公司 一种接近识别方法、装置及终端设备
TWI783456B (zh) * 2021-04-21 2022-11-11 大陸商北京集創北方科技股份有限公司 觸控裝置的掃描頻率決定方法及利用其之觸控顯示裝置和資訊處理裝置

Family Cites Families (9)

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Publication number Priority date Publication date Assignee Title
US8493331B2 (en) * 2007-06-13 2013-07-23 Apple Inc. Touch detection using multiple simultaneous frequencies
TWI443554B (zh) * 2009-08-05 2014-07-01 Silicon Integrated Sys Corp 觸碰感測裝置及其方法
JP2011146979A (ja) * 2010-01-15 2011-07-28 Panasonic Corp 送信装置、無線通信装置及び送信方法
WO2012148539A1 (en) * 2011-02-25 2012-11-01 Maxim Integrated Products, Inc Capacitive touch sense architecture
TW201243679A (en) * 2011-04-25 2012-11-01 Focaltech Systems Ltd Methods for filtering noise in capacitive touch panel
US8928635B2 (en) * 2011-06-22 2015-01-06 Apple Inc. Active stylus
US8493360B2 (en) * 2011-07-19 2013-07-23 Cypress Semiconductor Corporation Quadrature signal receiver using synchronized oscillator
US8810537B2 (en) * 2012-02-15 2014-08-19 Apple Inc. Quadrature demodulation for touch sensitive devices
US8890840B2 (en) * 2012-04-30 2014-11-18 Mediatek Inc. Method and apparatus for using oscillation signals with different phases to detect capacitance values at capacitive sensing nodes of touch panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI630528B (zh) * 2017-09-14 2018-07-21 奇景光電股份有限公司 電子裝置、接收電路與觸控訊號的處理方法
US10678374B2 (en) 2017-09-14 2020-06-09 Himax Technologies Limited Electrical device, receiving circuit, and method for touch sensing

Also Published As

Publication number Publication date
TW201519040A (zh) 2015-05-16
TW201519059A (zh) 2015-05-16
TWI605371B (zh) 2017-11-11
TWI540472B (zh) 2016-07-01
TWI576741B (zh) 2017-04-01
TW201519017A (zh) 2015-05-16
TW201528115A (zh) 2015-07-16
TWI521403B (zh) 2016-02-11
TWI521404B (zh) 2016-02-11
TWI525524B (zh) 2016-03-11
TW201519038A (zh) 2015-05-16
TWI514205B (zh) 2015-12-21
TW201519041A (zh) 2015-05-16
TW201519039A (zh) 2015-05-16
TWI539339B (zh) 2016-06-21

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