AU471677B2 - Improvements in or relating to keyboards - Google Patents

Improvements in or relating to keyboards

Info

Publication number
AU471677B2
AU471677B2 AU45984/72A AU4598472A AU471677B2 AU 471677 B2 AU471677 B2 AU 471677B2 AU 45984/72 A AU45984/72 A AU 45984/72A AU 4598472 A AU4598472 A AU 4598472A AU 471677 B2 AU471677 B2 AU 471677B2
Authority
AU
Australia
Prior art keywords
keyboards
relating
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.)
Expired
Application number
AU45984/72A
Other versions
AU4598472A (en
Inventor
James Hoffman Clifford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Publication of AU4598472A publication Critical patent/AU4598472A/en
Application granted granted Critical
Publication of AU471677B2 publication Critical patent/AU471677B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/70—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard
    • H01H13/702—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch having a plurality of operating members associated with different sets of contacts, e.g. keyboard with contacts carried by or formed from layers in a multilayer structure, e.g. membrane switches
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2207/00—Connections
    • H01H2207/004—Printed circuit tail
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2217/00—Facilitation of operation; Human engineering
    • H01H2217/026—Pencil operated
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2219/00—Legends
    • H01H2219/002—Legends replaceable; adaptable
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2225/00—Switch site location
    • H01H2225/018—Consecutive operations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2229/00—Manufacturing
    • H01H2229/012—Vacuum deposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/002—Calculator, computer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/022—Telephone handset
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2231/00—Applications
    • H01H2231/05—Card, e.g. credit card
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/01—Miscellaneous combined with other elements on the same substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2239/00—Miscellaneous
    • H01H2239/026—Internal encoding, e.g. validity bit

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Push-Button Switches (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Telephone Set Structure (AREA)
AU45984/72A 1971-08-30 1972-08-25 Improvements in or relating to keyboards Expired AU471677B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US17587971A 1971-08-30 1971-08-30
USUS175,879 1971-08-30

Publications (2)

Publication Number Publication Date
AU4598472A AU4598472A (en) 1974-02-28
AU471677B2 true AU471677B2 (en) 1976-04-29

Family

ID=22642032

Family Applications (1)

Application Number Title Priority Date Filing Date
AU45984/72A Expired AU471677B2 (en) 1971-08-30 1972-08-25 Improvements in or relating to keyboards

Country Status (12)

Country Link
US (1) US3743797A (en)
JP (1) JPS4833727A (en)
AR (1) AR202781A1 (en)
AU (1) AU471677B2 (en)
BE (1) BE787997A (en)
CA (1) CA948557A (en)
DE (1) DE2242255A1 (en)
FR (1) FR2150941B1 (en)
GB (1) GB1408297A (en)
IT (1) IT965152B (en)
NL (1) NL7211757A (en)
SE (1) SE375637B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3911780A (en) * 1972-07-17 1975-10-14 Hammond Corp Arpeggio keyboard
US3886335A (en) * 1973-01-26 1975-05-27 Ind Electronics Engineers Inc Collated cable matrix switch
JPS5024770A (en) * 1973-07-05 1975-03-17
US3860771A (en) * 1973-10-29 1975-01-14 Chomerics Inc Keyboard switch assembly with dome shaped actuator having associated underlying contactor means
US3862382A (en) * 1973-10-29 1975-01-21 Chomerics Inc Keyboards switch assembly with multilayer pattern contact means
US4032729A (en) * 1973-12-21 1977-06-28 Rockwell International Corporation Low profile keyboard switch having panel hinged actuators and cantilevered beam snap acting contacts
AT337275B (en) * 1974-05-07 1977-06-27 Preh Elektro Feinmechanik ULTRASONIC REMOTE CONTROL DEVICE
US3987259A (en) * 1975-06-12 1976-10-19 Globe-Union Inc. Membrane switch apparatus having sequential bridging contact arrangement
US4065649A (en) * 1975-06-30 1977-12-27 Lake Center Industries Pressure sensitive matrix switch having apertured spacer with flexible double sided adhesive intermediate and channels optionally interposed between apertures
US4181964A (en) * 1975-07-02 1980-01-01 Texas Instruments Incorporated Integrated electronics assembly on a plastic chassis
US4090045A (en) * 1975-12-15 1978-05-16 Marsh Products, Inc. Keyboard strip switch assembly having multifurcated conductive screen contact with contact cleaning wiping-action
US4143253A (en) * 1977-04-25 1979-03-06 Amp Incorporated Optically clear membrane switch
JPS54124439U (en) * 1978-02-20 1979-08-31
US4376239A (en) * 1980-10-03 1983-03-08 Allen-Bradley Company Industrial membrane switch
DE3248631A1 (en) * 1982-12-30 1984-07-12 Wolfgang Schindler Programming accessory
JPS6034636U (en) * 1983-08-17 1985-03-09 三菱電機株式会社 Multi-item input device
FR2580240B1 (en) * 1985-04-10 1987-07-10 Citroen Maxime GROUPING DEVICE CONSTITUTING A KEYBOARD OF CONTACTORS FOR CONTROLLING EQUIPMENT INSTALLED IN A MOTOR VEHICLE
DE3915645C2 (en) * 1989-05-12 1995-11-16 Mettler Toledo Albstadt Gmbh Electronic scale for price calculation
AU677958B2 (en) * 1993-02-03 1997-05-15 A-Dec, Incorporated Control panel with sealed switch keypad
US6680678B2 (en) * 2001-02-07 2004-01-20 Umax Data Systems, Inc. Circuit layout arrangement for key switch signal recognition

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3290439A (en) * 1963-04-29 1966-12-06 Willcox Data encoding keyboard
US3308253A (en) * 1965-03-25 1967-03-07 Ibm Diaphragm switch having a diaphragm supported on an incompressible layer and an elastomer overlaying the diaphragm
US3544987A (en) * 1967-02-24 1970-12-01 Renville H Mcmann Jr Property protection alarm system
US3472974A (en) * 1967-09-25 1969-10-14 Automatic Elect Lab Pushbutton switch activated by a slide with a plurality of toggle joints and cams
US3591749A (en) * 1969-05-12 1971-07-06 Singer Co Printed circuit keyboard
US3600528A (en) * 1969-09-25 1971-08-17 Lematex Corp Multiple switch construction
US3584162A (en) * 1970-02-16 1971-06-08 Ibm Electrical keyboard switch mechanism with improved resilient diaphragm contact actuator
US3676615A (en) * 1970-07-13 1972-07-11 Ibm Pushbutton keyboard switch array and associated printed circuit logic cards

Also Published As

Publication number Publication date
AR202781A1 (en) 1975-07-24
DE2242255A1 (en) 1973-03-08
BE787997A (en) 1972-12-18
FR2150941B1 (en) 1976-08-13
SE375637B (en) 1975-04-21
CA948557A (en) 1974-06-04
GB1408297A (en) 1975-10-01
JPS4833727A (en) 1973-05-12
US3743797A (en) 1973-07-03
FR2150941A1 (en) 1973-04-13
AU4598472A (en) 1974-02-28
IT965152B (en) 1974-01-31
NL7211757A (en) 1973-03-02

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