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 recordedInfo
- 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
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
Landscapes
- Input From Keyboards Or The Like (AREA)
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.
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)
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 |
CN103153631B (en) * | 2010-05-07 | 2015-12-16 | 柏金斯盲人学校 | For catching and translate the system and method for 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)
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 |
US2615992A (en) * | 1949-01-03 | 1952-10-28 | 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 |
-
1969
- 1969-03-14 US US00815247*A patent/US3847262A/en not_active Expired - Lifetime
-
1970
- 1970-03-12 GB GB01864/70A patent/GB1301203A/en not_active Expired
- 1970-03-13 DE DE19702012091 patent/DE2012091A1/en active Pending
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 |