JPS59500637A - 光学式キーボード - Google Patents

光学式キーボード

Info

Publication number
JPS59500637A
JPS59500637A JP57501366A JP50136682A JPS59500637A JP S59500637 A JPS59500637 A JP S59500637A JP 57501366 A JP57501366 A JP 57501366A JP 50136682 A JP50136682 A JP 50136682A JP S59500637 A JPS59500637 A JP S59500637A
Authority
JP
Japan
Prior art keywords
light
photoconductive
paths
key
keyboard
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.)
Granted
Application number
JP57501366A
Other languages
English (en)
Japanese (ja)
Other versions
JPH048888B2 (enrdf_load_stackoverflow
Inventor
パタ−ソン・ロバ−ト・レロイ
サブレツト・ジエリ−・マツク
Original Assignee
レックスマーク・インターナショナル・インコーポレーテッド
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 レックスマーク・インターナショナル・インコーポレーテッド filed Critical レックスマーク・インターナショナル・インコーポレーテッド
Publication of JPS59500637A publication Critical patent/JPS59500637A/ja
Publication of JPH048888B2 publication Critical patent/JPH048888B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J5/00—Devices or arrangements for controlling character selection
    • B41J5/08—Character or syllable selected by means of keys or keyboards of the typewriter type

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Push-Button Switches (AREA)
  • Electronic Switches (AREA)
JP57501366A 1982-03-29 1982-03-29 光学式キーボード Granted JPS59500637A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1982/000379 WO1983003386A1 (en) 1982-03-29 1982-03-29 Optical keyboard with common light transmission members

Publications (2)

Publication Number Publication Date
JPS59500637A true JPS59500637A (ja) 1984-04-12
JPH048888B2 JPH048888B2 (enrdf_load_stackoverflow) 1992-02-18

Family

ID=22167892

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57501366A Granted JPS59500637A (ja) 1982-03-29 1982-03-29 光学式キーボード

Country Status (4)

Country Link
EP (1) EP0104168B1 (enrdf_load_stackoverflow)
JP (1) JPS59500637A (enrdf_load_stackoverflow)
DE (1) DE3277004D1 (enrdf_load_stackoverflow)
WO (1) WO1983003386A1 (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950001730B1 (ko) * 1991-06-08 1995-02-28 주식회사 일진 옵티컬 인텔리젠트 키보드 구조체
GB2406944A (en) * 2003-10-09 2005-04-13 Motorola Inc Keyboard switching devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826332A (enrdf_load_stackoverflow) * 1971-08-07 1973-04-06
US3856127A (en) * 1972-11-24 1974-12-24 U Halfon Photo-optical keyboard

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609759A (en) * 1969-12-31 1971-09-28 Emerson Electric Co Photoelectric keyboard encoder
US3611357A (en) * 1970-03-16 1971-10-05 Texas Instruments Inc Pushbutton keyboard assembly
US3648050A (en) * 1970-08-06 1972-03-07 Tuh Kai Koo Optoelectronic data entry means having plurality of control means to direct part of radiation in channel from radiation source to output channel
US4254407A (en) * 1979-07-18 1981-03-03 Ncr Corporation Data processing system having optically linked subsystems, including an optical keyboard

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4826332A (enrdf_load_stackoverflow) * 1971-08-07 1973-04-06
US3856127A (en) * 1972-11-24 1974-12-24 U Halfon Photo-optical keyboard

Also Published As

Publication number Publication date
EP0104168A4 (en) 1985-10-30
EP0104168A1 (en) 1984-04-04
WO1983003386A1 (en) 1983-10-13
JPH048888B2 (enrdf_load_stackoverflow) 1992-02-18
EP0104168B1 (en) 1987-08-19
DE3277004D1 (en) 1987-09-24

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