GB1301203A - Keyboard-actuated apparatus and attachment for deriving coded electric output signals representative of characters to be recorded - Google Patents

Keyboard-actuated apparatus and attachment for deriving coded electric output signals representative of characters to be recorded

Info

Publication number
GB1301203A
GB1301203A GB01864/70A GB1186470A GB1301203A GB 1301203 A GB1301203 A GB 1301203A GB 01864/70 A GB01864/70 A GB 01864/70A GB 1186470 A GB1186470 A GB 1186470A GB 1301203 A GB1301203 A GB 1301203A
Authority
GB
United Kingdom
Prior art keywords
sensing
coded
sensed
arm
pattern
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
GB01864/70A
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.)
Datacq Systems Corp
Original Assignee
Datacq Systems Corp
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 Datacq Systems Corp filed Critical Datacq Systems Corp
Publication of GB1301203A publication Critical patent/GB1301203A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03K17/97—Switches controlled by moving an element forming part of the switch using a magnetic movable element
    • H03K17/972—Switches controlled by moving an element forming part of the switch using a magnetic movable element having a plurality of control members, e.g. keyboard
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/44—Typewriters or selective printing mechanisms having dual functions or combined with, or coupled to, apparatus performing other functions
    • B41J3/50—Mechanisms producing characters by printing and also producing a record by other means, e.g. printer combined with RFID writer
    • B41J3/51—Mechanisms producing characters by printing and also producing a record by other means, e.g. printer combined with RFID writer the printed and recorded information being identical; using type elements with code-generating 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
    • H03K17/965—Switches controlled by moving an element forming part of the switch
    • H03K17/968—Switches controlled by moving an element forming part of the switch using opto-electronic devices
    • H03K17/969—Switches controlled by moving an element forming part of the switch using opto-electronic devices having a plurality of control members, e.g. keyboard

Abstract

1301203 Selective signalling DATACQ SYSTEMS CORP 12 March 1970 [14 March 1969] 11864/70 Heading G4H Key-actuated members carry coded patterns which are each sensed serially on actuation, by an optical-to-electric converter. When a typewriter key is actuated and the corresponding print arm moves to the print position, a coded pattern on the arm is sensed to provide coded electric signals identifying the character being printed which are supplied via a dial tone receiver connection, or direct wire connection, to a computer. The coded pattern is sensed photoelectrically (being of light reflecting bars, or light-transmitting marks or slots). Optical fibres or lenses may be used for conducting the light to and/or from the sensing position. Sensing is serial by bit. The coded pattern may be provided on/in a detachable inverted U-shaped member which is clipped over the print head on the end of the print arm. Two patterns may be provided on a given arm, corresponding to the upper and lower case characters carried by the arm, being at different heights so that only the appropriate one is sensed. The same pattern may be provided on both sides of the head, the two outputs from sensing the two sides being combined to compensate for lateral mispositioning of the head. The pattern may be sensed during both forward and reverse movement of the head for parity checking using a counter, or the code may incorporate parity information. Spacing of the typewriter carriage is indicated by optical sensing (via optical fibres) of a scale on the carriage, encoded signals being produced from a converter to indicate spacing. Line beginning is also indicated from the scale. Beginning of line and other format information can also be indicated by pressing respective auxiliary keys which move respective coded patterns past sensing means. Encoding of more than one key in the typewriter at a time may be prevented. Sensing may use infra-red or ultra-violet, and in the latter case the coded patterns may be of fluorescent ink or paint. Application to the keyboard of a desk calculator is mentioned.
GB01864/70A 1969-03-14 1970-03-12 Keyboard-actuated apparatus and attachment for deriving coded electric output signals representative of characters to be recorded Expired GB1301203A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00815247*A US3847262A (en) 1969-03-14 1969-03-14 Apparatus and attachment for deriving coded signals

Publications (1)

Publication Number Publication Date
GB1301203A true GB1301203A (en) 1972-12-29

Family

ID=25217284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB01864/70A Expired GB1301203A (en) 1969-03-14 1970-03-12 Keyboard-actuated apparatus and attachment for deriving coded electric output signals representative of characters to be recorded

Country Status (3)

Country Link
US (1) US3847262A (en)
DE (1) DE2012091A1 (en)
GB (1) GB1301203A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030589A (en) * 1973-04-25 1977-06-21 Ncr Corporation Data processing machine
US4006463A (en) * 1974-04-29 1977-02-01 Mobil Oil Corporation Computer-print device code converter
FR2554261B1 (en) * 1983-10-28 1987-04-30 Thomson Csf SENSITIVE DISPLAY DEVICE HAVING A SCANNING SCREEN
US4641026A (en) * 1984-02-02 1987-02-03 Texas Instruments Incorporated Optically activated keyboard for digital system
FR2576439B1 (en) * 1985-01-21 1987-05-07 Sereg Soc SECURE REMOTE DATA PRINTING SYSTEM
FR2595022B1 (en) * 1986-02-24 1993-02-05 Souloumiac Alain OPTICAL KEYBOARD
WO1987005172A1 (en) * 1986-02-24 1987-08-27 Alain Souloumiac Improvements to optical scanning keyboards
DE10315526A1 (en) * 2003-04-04 2004-10-28 Siemens Ag Safe switching of operating mode of industrial controller for machine tool or production machine, by transmitting binary enable signal to operating panel after user identification
AU2011249945B2 (en) * 2010-05-07 2014-06-05 Perkins School For The Blind System and method for capturing and translating braille embossing
JP6263914B2 (en) * 2013-09-10 2018-01-24 株式会社リコー Imaging device, driving method of imaging device, and camera

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2350893A (en) * 1939-04-24 1944-06-06 Hofgaard Rolf Type for typewriting machines, perforation or printing as well as interpretation system for characters
US2196166A (en) * 1939-06-30 1940-04-02 Ibm Data reproducing machine
US2382251A (en) * 1943-08-25 1945-08-14 Bell Telephone Labor Inc Telegraph perforator-transmitter
US2408754A (en) * 1944-07-27 1946-10-08 Teleregister Corp Photoelectric transmitting typewriter apparatus
US2616983A (en) * 1949-01-03 1952-11-04 Rca Corp Apparatus for indicia recognition
US2881976A (en) * 1955-12-30 1959-04-14 Ibm Code translating device
US3035380A (en) * 1957-05-24 1962-05-22 William B Leavens Method for inspecting cartons
NL236292A (en) * 1958-02-19
US3018332A (en) * 1958-06-25 1962-01-23 Ibm Transmitting typewriter apparatus
US3017463A (en) * 1959-04-10 1962-01-16 Bendix Corp Keyboard apparatus
US3032163A (en) * 1960-11-14 1962-05-01 Invac Corp Data recorder and associated methods
DE1131728B (en) * 1961-04-01 1962-06-20 Standard Elektrik Lorenz Ag Key levers for teleprinters
US3476311A (en) * 1963-02-26 1969-11-04 Alfred P Feldman Two-dimensional structure encoding typewriter
US3324301A (en) * 1963-02-28 1967-06-06 Lan Jen Chu Photoelectric vehicle identification system
SE302698B (en) * 1963-06-11 1968-07-29 Atvidabergs Ind Ab
US3539723A (en) * 1967-08-01 1970-11-10 Bell Telephone Labor Inc Transmitting typewriter apparatus
US3519116A (en) * 1968-05-16 1970-07-07 Imagination Designs Eng & Sale Optical keyboard control means with series and parallel light circuits

Also Published As

Publication number Publication date
US3847262A (en) 1974-11-12
DE2012091A1 (en) 1970-09-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees