CH616816GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH616816GA3 CH616816GA3 CH1276576A CH1276576A CH616816GA3 CH 616816G A3 CH616816G A3 CH 616816GA3 CH 1276576 A CH1276576 A CH 1276576A CH 1276576 A CH1276576 A CH 1276576A CH 616816G A3 CH616816G A3 CH 616816GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- touch sensitive
- detector circuit
- input
- potential
- output signal
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/08—Touch switches specially adapted for time-pieces
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0064—Visual time or date indication means in which functions not related to time can be displayed
- G04G9/007—Visual time or date indication means in which functions not related to time can be displayed combined with a calculator or computing means
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/96—Touch switches
- H03K17/962—Capacitive touch switches
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/965—Switches controlled by moving an element forming part of the switch
- H03K17/975—Switches controlled by moving an element forming part of the switch using a capacitive movable element
- H03K17/98—Switches controlled by moving an element forming part of the switch using a capacitive movable element having a plurality of control members, e.g. keyboard
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K2217/00—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00
- H03K2217/94—Indexing scheme related to electronic switching or gating, i.e. not by contact-making or -breaking covered by H03K17/00 characterised by the way in which the control signal is generated
- H03K2217/96—Touch switches
- H03K2217/9605—Detection of leakage or discharge current across the touching body to ground
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Electronic Switches (AREA)
- Electric Clocks (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
A touch sensitive input particularly suited for use with an electronic wristwatch, an electronic calculator or a combination thereof is provided. The touch sensitive input includes a touch sensitive contact connected to the input of a detector circuit, the detector circuit input being normally referenced to a first potential for producing a detector circuit output signal representative of the first potential. Engagement of the touch sensitive contact selectively references the detector circuit input to a second potential and in response thereto produces a detector circuit output signal representative of the second potential. The detector circuit includes at least an MOS or C-MOS input stage. Additional circuitry is provided for eliminating chatter in the output signal produced by the input stage, for preventing the producing of two signals representative of the unintended engagement of more than one touch sensitive contact, and for providing an indication that a touch sensitive contact has been inadvertently engaged.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50121591A JPS5245978A (en) | 1975-10-08 | 1975-10-08 | Electronic wrist watch |
JP50125021A JPS5248925A (en) | 1975-10-17 | 1975-10-17 | Contact detection circuit |
JP50143505A JPS5267367A (en) | 1975-12-01 | 1975-12-01 | Electronic wristwach with calculator |
Publications (2)
Publication Number | Publication Date |
---|---|
CH616816B CH616816B (en) | 1900-01-01 |
CH616816GA3 true CH616816GA3 (en) | 1980-04-30 |
Family
ID=27314276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1276576A CH616816B (en) | 1975-10-08 | 1976-10-08 | ELECTRONIC WRISTWATCH. |
Country Status (2)
Country | Link |
---|---|
US (1) | US4105902A (en) |
CH (1) | CH616816B (en) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4308443A (en) * | 1979-05-01 | 1981-12-29 | Rangaire Corporation | Induction cook-top with improved touch control |
JPS63289633A (en) * | 1987-05-21 | 1988-11-28 | Hitachi Ltd | Input control system |
US5632679A (en) * | 1992-10-26 | 1997-05-27 | Tremmel; Michael | Touch sensitive computer interface controller |
DE4336669C1 (en) * | 1993-10-27 | 1994-12-15 | Ziegler Horst | Input field |
US5728963A (en) * | 1996-06-22 | 1998-03-17 | Reintjes; Peter B. | Low-power music synthesizer and transmitter |
US5783875A (en) * | 1997-02-11 | 1998-07-21 | The Lamson & Sessions Co. | Touch sensor circuit |
US7218498B2 (en) | 1999-01-19 | 2007-05-15 | Touchsensor Technologies Llc | Touch switch with integral control circuit |
US7906875B2 (en) | 1999-01-19 | 2011-03-15 | Touchsensor Technologies, Llc | Touch switches and practical applications therefor |
US6320282B1 (en) * | 1999-01-19 | 2001-11-20 | Touchsensor Technologies, Llc | Touch switch with integral control circuit |
US6837618B1 (en) * | 1999-03-11 | 2005-01-04 | Citizen Watch Co., Ltd. | Electronic thermometer |
US7561494B2 (en) * | 2005-04-08 | 2009-07-14 | Max M. Stern | One or more portable remote devices involved with sports that can control time or whistle equipment on or off the playing area |
US20070014192A1 (en) * | 2005-07-15 | 2007-01-18 | Now Is Forever, Llc | Timepiece |
US7817500B2 (en) * | 2006-03-10 | 2010-10-19 | Idt Technology Limited | Shock-activated switch device |
US7880727B2 (en) * | 2006-04-05 | 2011-02-01 | Microsoft Corporation | Touch sensitive and mechanical user input device |
EP2506677A2 (en) * | 2007-01-22 | 2012-10-03 | Panasonic Corporation | Cooking device |
CN101682946B (en) * | 2007-06-22 | 2012-04-11 | 松下电器产业株式会社 | Cooking device |
US20090262492A1 (en) * | 2007-10-26 | 2009-10-22 | Seal Shield, Llc | Submersible keyboard |
US8063879B2 (en) | 2007-12-20 | 2011-11-22 | Research In Motion Limited | Method and handheld electronic device including first input component and second touch sensitive input component |
CA2757490A1 (en) * | 2009-04-03 | 2010-10-07 | Touchsensor Technologies, Llc | Virtual knob interface and method |
AU2010281418A1 (en) * | 2009-07-27 | 2012-02-02 | Touchsensor Technologies, Llc | Level sensing controller and method |
US20110128154A1 (en) * | 2009-12-01 | 2011-06-02 | Flow-Rite Controls, Ltd. | Battery electrolyte level indicator |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3736445A (en) * | 1970-01-12 | 1973-05-29 | Medar Inc | Proximity detector |
US3624518A (en) * | 1970-03-24 | 1971-11-30 | Us Navy | Single pulse switch circuit |
CA945641A (en) * | 1970-04-27 | 1974-04-16 | Tokyo Shibaura Electric Co. | Logic circuit using complementary type insulated gate field effect transistors |
JPS4934869A (en) * | 1972-07-31 | 1974-03-30 | ||
CH563690A5 (en) * | 1973-03-09 | 1975-06-30 | Radioelectrique Comp Ind | |
US3909625A (en) * | 1973-07-30 | 1975-09-30 | Magic Dot Inc | Touch actuated electronic switch |
-
1976
- 1976-10-08 US US05/730,763 patent/US4105902A/en not_active Expired - Lifetime
- 1976-10-08 CH CH1276576A patent/CH616816B/en unknown
Also Published As
Publication number | Publication date |
---|---|
US4105902A (en) | 1978-08-08 |
CH616816B (en) | 1900-01-01 |
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