KR20010080446A - 저항성 래더 스위칭 매트릭스를 교정하는 방법 및 장치 - Google Patents

저항성 래더 스위칭 매트릭스를 교정하는 방법 및 장치 Download PDF

Info

Publication number
KR20010080446A
KR20010080446A KR1020017006055A KR20017006055A KR20010080446A KR 20010080446 A KR20010080446 A KR 20010080446A KR 1020017006055 A KR1020017006055 A KR 1020017006055A KR 20017006055 A KR20017006055 A KR 20017006055A KR 20010080446 A KR20010080446 A KR 20010080446A
Authority
KR
South Korea
Prior art keywords
cover
calibration element
contact
calibration
closed state
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
KR1020017006055A
Other languages
English (en)
Korean (ko)
Inventor
클랙스톤다니엘디
Original Assignee
밀러 럿셀 비
퀄컴 인코포레이티드
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 밀러 럿셀 비, 퀄컴 인코포레이티드 filed Critical 밀러 럿셀 비
Publication of KR20010080446A publication Critical patent/KR20010080446A/ko
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M11/00—Coding in connection with keyboards or like devices, i.e. coding of the position of operated keys
    • H03M11/22—Static coding
    • H03M11/24—Static coding using analogue means, e.g. by coding the states of multiple switches into a single multi-level analogue signal or by indicating the type of a device using the voltage level at a specific tap of a resistive divider
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0241—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call
    • H04M1/0245—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings using relative motion of the body parts to change the operational status of the telephone set, e.g. switching on/off, answering incoming call using open/close detection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Transmitters (AREA)
  • Analogue/Digital Conversion (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Telephone Function (AREA)
KR1020017006055A 1998-11-13 1999-11-12 저항성 래더 스위칭 매트릭스를 교정하는 방법 및 장치 Ceased KR20010080446A (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/191,200 1998-11-13
US09/191,200 US6178388B1 (en) 1998-11-13 1998-11-13 Method and apparatus for calibrating a resistive ladder switching matrix
PCT/US1999/026853 WO2000030263A1 (en) 1998-11-13 1999-11-12 Method and apparatus for calibrating a resistive ladder switching matrix

Publications (1)

Publication Number Publication Date
KR20010080446A true KR20010080446A (ko) 2001-08-22

Family

ID=22704516

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020017006055A Ceased KR20010080446A (ko) 1998-11-13 1999-11-12 저항성 래더 스위칭 매트릭스를 교정하는 방법 및 장치

Country Status (12)

Country Link
US (1) US6178388B1 (https=)
EP (1) EP1131891B1 (https=)
JP (1) JP4295924B2 (https=)
KR (1) KR20010080446A (https=)
CN (1) CN1168220C (https=)
AT (1) ATE287592T1 (https=)
AU (1) AU767291B2 (https=)
CA (1) CA2350579C (https=)
DE (1) DE69923343T2 (https=)
HK (1) HK1042599B (https=)
RU (1) RU2233539C2 (https=)
WO (1) WO2000030263A1 (https=)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE520689C2 (sv) * 1997-12-19 2003-08-12 Ericsson Telefon Ab L M Lock innefattande elekriska kalibreringsorgan, portabel anordning och sätt att tillverka ett lock
TW439366B (en) * 1999-11-19 2001-06-07 Darfon Electronics Corp Key scanning circuit
US6577250B1 (en) * 2000-05-19 2003-06-10 Microsoft Corporation Resistance based keyboard key discrimination
DE10044087A1 (de) * 2000-09-07 2002-04-04 Bosch Gmbh Robert Vorrichtung zur Aktivierung eines Steuergeräts
US6628216B2 (en) * 2002-02-13 2003-09-30 Intersil Americas Inc. Calibration of resistor ladder using difference measurement and parallel resistive correction
US8526950B2 (en) * 2003-12-30 2013-09-03 Nokia Corporation Determining handover based on state of mobile terminal
US7248195B2 (en) * 2005-11-30 2007-07-24 Symbol Technologies, Inc. Methods and apparatus for multiplexed digital inputs using an analog-to-digital converter
TWI307520B (en) * 2006-09-15 2009-03-11 Novatek Microelectronics Corp Key system utilizing two operation nodes to detect the status of a plurality of keys
JP4578451B2 (ja) * 2006-09-15 2010-11-10 京セラ株式会社 電子機器
US7639168B1 (en) * 2007-02-06 2009-12-29 Linear Technology Corporation Systems and methods for switch resistance control in digital to analog converters (DACs)
CN209218068U (zh) * 2015-12-31 2019-08-06 万思伴国际有限公司 包括线性键区的电子装置
RO132882A2 (ro) 2017-04-05 2018-10-30 Preh Gmbh Sistem şi metodă pentru citirea simultană a mai multor butoane sau senzori utilizând un singur pin analogic al unui microcontroler

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4015254A (en) * 1975-12-04 1977-03-29 General Motors Corporation Keyboard encoding circuit utilizing an A/D converter
US4118700A (en) * 1977-05-31 1978-10-03 Rca Corporation Single wire transmission of multiple switch operations
US4695840A (en) * 1985-09-03 1987-09-22 Mobil Oil Corporation Remote switch position determination using duty cycle modulation
US4884070A (en) * 1988-04-04 1989-11-28 California Institute Of Technology Method and apparatus for multiplexing switch signals
AT397311B (de) * 1991-08-16 1994-03-25 Hans Dr Leopold Verfahren zur bestimmung einer messgrösse sowie schaltungsanordnung zur durchführung des verfahrens
US5543588A (en) * 1992-06-08 1996-08-06 Synaptics, Incorporated Touch pad driven handheld computing device
US5510783A (en) * 1992-07-13 1996-04-23 Interlink Electronics, Inc. Adaptive keypad
DE4227149A1 (de) * 1992-08-17 1994-02-24 Hans Joachim Dr Ing Schuster Meßverfahren zur Ermittlung der Widerstandswerte ohmscher Widerstände, insbesondere Temperaturfühler
US5469364A (en) * 1993-03-15 1995-11-21 Hughey; Bradley W. Apparatus and methods for measuring and detecting variations in the value of a capacitor
US5515040A (en) * 1993-09-28 1996-05-07 Sejin Electron, Incorporated Methods of self-calibration for a key-type mouse
US5619196A (en) * 1995-12-28 1997-04-08 Universal Electronics Inc. Single wire keyboard encode and decode circuit
KR100203745B1 (ko) * 1996-05-27 1999-06-15 윤종용 에이디씨-키 패드 장치 및 그의 제어방법
US5900829A (en) * 1996-07-23 1999-05-04 Motorola, Inc. Method of and apparatus for detecting key actuations
US5798716A (en) * 1996-08-23 1998-08-25 Motorola, Inc. Method and apparatus for detecting key actuations
RU2121221C1 (ru) * 1996-09-27 1998-10-27 Государственное предприятие - Научно-исследовательский и проектно-конструкторский институт средств автоматизации на железнодорожном транспорте Кодирующее устройство для проверки систем телемеханики на сортировочных горках
FR2754399B1 (fr) * 1996-10-09 1998-12-04 Connexion Soc Nle Contacts tournants a effets auto-nettoyant
SE520689C2 (sv) * 1997-12-19 2003-08-12 Ericsson Telefon Ab L M Lock innefattande elekriska kalibreringsorgan, portabel anordning och sätt att tillverka ett lock

Also Published As

Publication number Publication date
US6178388B1 (en) 2001-01-23
JP2002530764A (ja) 2002-09-17
EP1131891A1 (en) 2001-09-12
CN1168220C (zh) 2004-09-22
JP4295924B2 (ja) 2009-07-15
DE69923343T2 (de) 2006-05-04
AU1620900A (en) 2000-06-05
CN1342344A (zh) 2002-03-27
HK1042599A1 (en) 2002-08-16
ATE287592T1 (de) 2005-02-15
EP1131891B1 (en) 2005-01-19
CA2350579A1 (en) 2000-05-25
CA2350579C (en) 2008-02-05
DE69923343D1 (de) 2005-02-24
HK1042599B (zh) 2005-05-20
WO2000030263A1 (en) 2000-05-25
RU2233539C2 (ru) 2004-07-27
AU767291B2 (en) 2003-11-06

Similar Documents

Publication Publication Date Title
CA2371118C (en) Selecting flip phone operating mode using flip position
KR20010080446A (ko) 저항성 래더 스위칭 매트릭스를 교정하는 방법 및 장치
CA2371097C (en) Detection of flip closure state of a flip phone
US6243595B1 (en) Portable wireless communication device having an extendible section
JP3448547B2 (ja) 折り畳み式携帯電話機
JPH05508735A (ja) ヒンジ位置に応動する制御信号イニシエータ
JP2002530764A5 (https=)
GB2051519A (en) Telephone keyset
EP0995208B1 (en) Telephone switching mechanism
RU2001116123A (ru) Способ и устройство для калибровки резистивной многозвенной переключательной матрицы
KR20000062611A (ko) 가변 디스플레이와 조합되는 전자 장치
WO2000069151A9 (en) Flip phone with pda and mode selection
US20010039193A1 (en) Sensor for detecting the state of a cover of a cellular phone
KR20050022977A (ko) 폴더형 이동통신 단말기의 안테나 임피던스 매칭 장치
TWI320903B (en) Capacitance touchpad data input device and keyboard
KR200364952Y1 (ko) 휴대 단말기의 키패드 조립체
US20070212925A1 (en) Communication terminal
KR200174756Y1 (ko) 이동전화단말기의 스위치 구조
KR20050116060A (ko) 볼륨 조절 스위치 겸용 안테나가 내장된 이동통신단말기
KR20070039998A (ko) 이동통신단말기의 개폐 감지 장치

Legal Events

Date Code Title Description
PA0105 International application

Patent event date: 20010512

Patent event code: PA01051R01D

Comment text: International Patent Application

PG1501 Laying open of application
A201 Request for examination
PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 20041112

Comment text: Request for Examination of Application

E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 20060420

Patent event code: PE09021S01D

E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 20061211

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 20060420

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I