USB289523I5 - - Google Patents
Info
- Publication number
- USB289523I5 USB289523I5 US28952372A USB289523I5 US B289523 I5 USB289523 I5 US B289523I5 US 28952372 A US28952372 A US 28952372A US B289523 I5 USB289523 I5 US B289523I5
- Authority
- US
- United States
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
- H04L17/02—Apparatus or circuits at the transmitting end
-
- 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
- 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
- H03M11/20—Dynamic coding, i.e. by key scanning
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L17/00—Apparatus or local circuits for transmitting or receiving codes wherein each character is represented by the same number of equal-length code elements, e.g. Baudot code
- H04L17/02—Apparatus or circuits at the transmitting end
- H04L17/04—Apparatus or circuits at the transmitting end with keyboard co-operating with code-bars
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Theoretical Computer Science (AREA)
- Input From Keyboards Or The Like (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289523A US3921166A (en) | 1972-09-15 | 1972-09-15 | Capacitance matrix keyboard |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US289523A US3921166A (en) | 1972-09-15 | 1972-09-15 | Capacitance matrix keyboard |
Publications (2)
Publication Number | Publication Date |
---|---|
USB289523I5 true USB289523I5 (en) | 1975-01-28 |
US3921166A US3921166A (en) | 1975-11-18 |
Family
ID=23111906
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US289523A Expired - Lifetime US3921166A (en) | 1972-09-15 | 1972-09-15 | Capacitance matrix keyboard |
Country Status (1)
Country | Link |
---|---|
US (1) | US3921166A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310952A1 (en) * | 1975-05-16 | 1976-12-10 | Westinghouse Electric Corp | ELEVATOR |
Families Citing this family (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4104725A (en) * | 1976-03-26 | 1978-08-01 | Norland Corporation | Programmed calculating input signal module for waveform measuring and analyzing instrument |
US4190826A (en) * | 1977-05-18 | 1980-02-26 | Bell Telephone Laboratories, Incorporated | Multidevice position digital encoder |
US4222038A (en) * | 1978-02-24 | 1980-09-09 | Motorola, Inc. | Microcomputer keyboard input circuitry |
US4221975A (en) * | 1978-04-19 | 1980-09-09 | Touch Activated Switch Arrays, Inc. | Touch activated controller and method |
US4186392A (en) * | 1978-07-28 | 1980-01-29 | Burroughs Corporation | Touch panel and operating system |
US4211915A (en) * | 1978-12-04 | 1980-07-08 | General Electric Company | Keyboard verification system |
US4405978A (en) * | 1979-06-25 | 1983-09-20 | Honeywell Information Systems Inc. | Microprocessor based computer terminal |
US4363108A (en) * | 1979-06-25 | 1982-12-07 | Honeywell Information Systems Inc. | Low cost programmable video computer terminal |
JPS56147226A (en) * | 1980-04-15 | 1981-11-16 | Brother Ind Ltd | Key input device |
GB2094529B (en) * | 1981-03-06 | 1984-07-18 | Solartron Electronic Group The | Keyboard modules for use in data terminals |
US4405917A (en) * | 1981-04-28 | 1983-09-20 | Honeywell Inc. | Matrix screening and grounding arrangement and method |
US4359720A (en) * | 1981-04-29 | 1982-11-16 | Honeywell Inc. | Environmentally sealed variable capacitance apparatus |
US4758829A (en) * | 1982-06-04 | 1988-07-19 | Smith Iii William N | Apparatus for stimulating a keyboard |
US4550221A (en) * | 1983-10-07 | 1985-10-29 | Scott Mabusth | Touch sensitive control device |
US4733222A (en) * | 1983-12-27 | 1988-03-22 | Integrated Touch Arrays, Inc. | Capacitance-variation-sensitive touch sensing array system |
US4706068A (en) * | 1985-01-30 | 1987-11-10 | Wyse Technology, Inc. | Four wire keyboard interface |
JP2733300B2 (en) * | 1989-04-28 | 1998-03-30 | 松下電器産業株式会社 | Key input device |
US5541622A (en) * | 1990-07-24 | 1996-07-30 | Incontrol Solutions, Inc. | Miniature isometric joystick |
US5889236A (en) * | 1992-06-08 | 1999-03-30 | Synaptics Incorporated | Pressure sensitive scrollbar feature |
EP0574213B1 (en) * | 1992-06-08 | 1999-03-24 | Synaptics, Inc. | Object position detector |
US5861583A (en) * | 1992-06-08 | 1999-01-19 | Synaptics, Incorporated | Object position detector |
US6028271A (en) * | 1992-06-08 | 2000-02-22 | Synaptics, Inc. | Object position detector with edge motion feature and gesture recognition |
US6239389B1 (en) | 1992-06-08 | 2001-05-29 | Synaptics, Inc. | Object position detection system and method |
US5880411A (en) | 1992-06-08 | 1999-03-09 | Synaptics, Incorporated | Object position detector with edge motion feature and gesture recognition |
US5790107A (en) * | 1995-06-07 | 1998-08-04 | Logitech, Inc. | Touch sensing method and apparatus |
JPH09146489A (en) * | 1995-11-20 | 1997-06-06 | Sharp Corp | Scanning circuit and image display device |
US5920309A (en) * | 1996-01-04 | 1999-07-06 | Logitech, Inc. | Touch sensing method and apparatus |
US5825352A (en) * | 1996-01-04 | 1998-10-20 | Logitech, Inc. | Multiple fingers contact sensing method for emulating mouse buttons and mouse operations on a touch sensor pad |
AU2808697A (en) * | 1996-04-24 | 1997-11-12 | Logitech, Inc. | Touch and pressure sensing method and apparatus |
JPH09319326A (en) * | 1996-05-30 | 1997-12-12 | Sharp Corp | Scanning circuit and matrix type picture display device |
US5943044A (en) | 1996-08-05 | 1999-08-24 | Interlink Electronics | Force sensing semiconductive touchpad |
US6380929B1 (en) | 1996-09-20 | 2002-04-30 | Synaptics, Incorporated | Pen drawing computer input device |
US5854625A (en) * | 1996-11-06 | 1998-12-29 | Synaptics, Incorporated | Force sensing touchpad |
US5958023A (en) * | 1997-01-07 | 1999-09-28 | Micron Electronics, Inc. | Method for low power wireless keyboard that detects a host computer query for the state of a key then powers up to determine and transmit back the state of that key |
US6222528B1 (en) * | 1997-03-07 | 2001-04-24 | Cirque Corporation | Method and apparatus for data input |
US6147680A (en) * | 1997-06-03 | 2000-11-14 | Koa T&T Corporation | Touchpad with interleaved traces |
US6891531B2 (en) * | 2002-07-05 | 2005-05-10 | Sentelic Corporation | Sensing an object with a plurality of conductors |
GB0319714D0 (en) * | 2003-08-21 | 2003-09-24 | Philipp Harald | Anisotropic touch screen element |
US20070222767A1 (en) * | 2006-03-22 | 2007-09-27 | David Wang | Glide touch sensor based interface for navigation infotainment systems |
US20070222764A1 (en) * | 2006-03-22 | 2007-09-27 | Centrality Communications, Inc. | Glide touch sensor based interface for navigation infotainment systems |
US8619054B2 (en) | 2006-05-31 | 2013-12-31 | Atmel Corporation | Two dimensional position sensor |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3437795A (en) * | 1965-06-28 | 1969-04-08 | Ampex | Data input devices and systems |
US3588875A (en) * | 1966-10-10 | 1971-06-28 | Sanders Associates Inc | Character encoder |
US3623082A (en) * | 1970-05-27 | 1971-11-23 | Clare & Co C P | Keyboard assembly |
US3651463A (en) * | 1970-04-17 | 1972-03-21 | Medidata Soiences Inc | Switch coding circuitry |
US3662378A (en) * | 1970-06-01 | 1972-05-09 | Cherry Electrical Prod | Electronic keyboard input circuit |
US3675239A (en) * | 1970-09-14 | 1972-07-04 | Ncr Co | Unlimited roll keyboard circuit |
US3683371A (en) * | 1970-09-15 | 1972-08-08 | Burroughs Corp | Magnetic keyboard terminal |
-
1972
- 1972-09-15 US US289523A patent/US3921166A/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3437795A (en) * | 1965-06-28 | 1969-04-08 | Ampex | Data input devices and systems |
US3588875A (en) * | 1966-10-10 | 1971-06-28 | Sanders Associates Inc | Character encoder |
US3651463A (en) * | 1970-04-17 | 1972-03-21 | Medidata Soiences Inc | Switch coding circuitry |
US3623082A (en) * | 1970-05-27 | 1971-11-23 | Clare & Co C P | Keyboard assembly |
US3662378A (en) * | 1970-06-01 | 1972-05-09 | Cherry Electrical Prod | Electronic keyboard input circuit |
US3675239A (en) * | 1970-09-14 | 1972-07-04 | Ncr Co | Unlimited roll keyboard circuit |
US3683371A (en) * | 1970-09-15 | 1972-08-08 | Burroughs Corp | Magnetic keyboard terminal |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2310952A1 (en) * | 1975-05-16 | 1976-12-10 | Westinghouse Electric Corp | ELEVATOR |
Also Published As
Publication number | Publication date |
---|---|
US3921166A (en) | 1975-11-18 |