GB1392321A - Control system - Google Patents

Control system

Info

Publication number
GB1392321A
GB1392321A GB1276372A GB1276372A GB1392321A GB 1392321 A GB1392321 A GB 1392321A GB 1276372 A GB1276372 A GB 1276372A GB 1276372 A GB1276372 A GB 1276372A GB 1392321 A GB1392321 A GB 1392321A
Authority
GB
United Kingdom
Prior art keywords
register
print
receiving register
storage register
receiving
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
GB1276372A
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.)
Extel Corp
Original Assignee
Extel 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 Extel Corp filed Critical Extel Corp
Publication of GB1392321A publication Critical patent/GB1392321A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L21/00—Apparatus or local circuits for mosaic printer telegraph systems
    • H04L21/04—Apparatus or local circuits for mosaic printer telegraph systems at the receiving end

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Character Spaces And Line Spaces In Printers (AREA)
  • Record Information Processing For Printing (AREA)

Abstract

1392321 Printers EXTEL CORP 17 March 1972 [19 March 1971] 12763/72 Heading G4H An electronic control system for a dot matrix printer produces, in response to a start pulse preceding a code group of data pulses (representing a character to be printed or a non-print function), an input clock signal having a frequency equal to a predetermined multiple of the data pulse rate, the data pulses each being shifted into a receiving register at a given clock count, and the contents of the receiving register being transferred to a storage register at a given clock count upon completion of recording of a complete code group in the receiving register. This completion is detected by arrival of the start pulse at the far end of the receiving register, the transfer from receiving register to storage register being accompanied by initiation of a print clock, pulses from which are counted, the count controlling advance of a stepping motor (which advances the column of print wires), and selection of successive columns in a character generator also responsive to the storage register. Non-print functions are detected in the storage register to inhibit or otherwise control the stepping &c.
GB1276372A 1971-03-19 1972-03-17 Control system Expired GB1392321A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12600471A 1971-03-19 1971-03-19

Publications (1)

Publication Number Publication Date
GB1392321A true GB1392321A (en) 1975-04-30

Family

ID=22422492

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5060374A Expired GB1392322A (en) 1971-03-19 1972-03-17 Control system
GB1276372A Expired GB1392321A (en) 1971-03-19 1972-03-17 Control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5060374A Expired GB1392322A (en) 1971-03-19 1972-03-17 Control system

Country Status (8)

Country Link
US (1) US3719781A (en)
JP (1) JPS5329243B1 (en)
CA (1) CA945475A (en)
DE (1) DE2213198C3 (en)
FR (1) FR2178285A5 (en)
GB (2) GB1392322A (en)
HK (2) HK15280A (en)
IT (1) IT952273B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938641A (en) * 1973-04-09 1976-02-17 Extel Corporation Control system for high speed printer
US3893558A (en) * 1974-05-17 1975-07-08 Extel Corp Special symbol generator for high speed printer
US4007442A (en) * 1974-11-11 1977-02-08 International Business Machines Corporation Intermixed line heights and blank line formation in a buffered printer
US3973662A (en) * 1974-11-29 1976-08-10 Extel Corporation Acceleration control system for high speed printer
US4026402A (en) * 1975-07-28 1977-05-31 Centronics Data Computer Corporation Incremental line printer
US3990559A (en) * 1975-10-20 1976-11-09 Extel Corporation Method and apparatus for multiple speed print rate control for dot matrix printer
US4020939A (en) * 1975-10-21 1977-05-03 Ncr Corporation Matrix print head repetition rate control
US4027761A (en) * 1975-10-21 1977-06-07 Ncr Corporation Matrix print head impact energy control
US4050563A (en) * 1975-11-05 1977-09-27 Centronics Data Computer Corporation Apparatus for selectable font printing
US4071909A (en) * 1976-09-30 1978-01-31 Xerox Corporation Digital interface system for a printer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2878313A (en) * 1954-07-01 1959-03-17 Rca Corp System for translating coded message to printed record
NL212759A (en) * 1955-12-12
DE1250171B (en) * 1959-01-26 1967-09-14 Los Altos Hills Calif Dr Gerhard Dirks (V St A) Control device for a printing unit controllable by code signals
US3286029A (en) * 1962-12-03 1966-11-15 Rca Corp Information translating apparatus
US3638197A (en) * 1968-12-31 1972-01-25 Texas Instruments Inc Electronic printing input-output station

Also Published As

Publication number Publication date
FR2178285A5 (en) 1973-11-09
GB1392322A (en) 1975-04-30
DE2213198B2 (en) 1976-03-04
IT952273B (en) 1973-07-20
CA945475A (en) 1974-04-16
HK15380A (en) 1980-04-03
HK15280A (en) 1980-04-03
JPS5329243B1 (en) 1978-08-19
US3719781A (en) 1973-03-06
DE2213198A1 (en) 1972-09-21
DE2213198C3 (en) 1984-03-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee