GB1285288A - Multiple character generator - Google Patents

Multiple character generator

Info

Publication number
GB1285288A
GB1285288A GB39998/70A GB3999870A GB1285288A GB 1285288 A GB1285288 A GB 1285288A GB 39998/70 A GB39998/70 A GB 39998/70A GB 3999870 A GB3999870 A GB 3999870A GB 1285288 A GB1285288 A GB 1285288A
Authority
GB
United Kingdom
Prior art keywords
character
matrix
characters
alphanumeric
counter
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
GB39998/70A
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.)
Bunker Ramo Corp
Original Assignee
Bunker Ramo 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 Bunker Ramo Corp filed Critical Bunker Ramo Corp
Publication of GB1285288A publication Critical patent/GB1285288A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H03M11/02—Details
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/30—Nc systems
    • G05B2219/36—Nc in input of data, input key till input tape
    • G05B2219/36006—A key delivers a series of key codes

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Input From Keyboards Or The Like (AREA)
  • Communication Control (AREA)
  • Television Systems (AREA)

Abstract

1285288 Cathode-ray tube character display BUNKER RAMO CORP 19 Aug 1970 [8 Oct 1969] 39998/70 Heading H4T An arrangement for decoding special characters (e.g. a character representing a frequently-used word or phrase) and converting each into a string of alphanumeric characters comprises a detector 28 which when one of these characters is recognized sets flip-flop 14 to disable at 18 the normal path for the character signals from keyboard 12 to memory 26 and to enable a counter 36. The first four bits of the composite character passes to matrix 32 together with the count (zero) registered in 36, and this matrix (which may be a diode matrix or other read-only store) generates the first alphanumeric character which passes via gates 40 and 22 to memory. Counter 36 is advanced at each character clock time to step the input to 32, thus producing a sequence of output characters until an 'end-of-sequence' code recognized at 52 resets 14 and 36. The invention is described in relation to the ASCII code and to a system for C.R.T. display of the alphanumeric characters by the use of video signals produced at 66. Fig. 2 (not shown) illustrates a multiplexing arrangement whereby the matrix 32 is shared by three concurrently operative keyboards.
GB39998/70A 1969-10-08 1970-08-19 Multiple character generator Expired GB1285288A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US86476569A 1969-10-08 1969-10-08

Publications (1)

Publication Number Publication Date
GB1285288A true GB1285288A (en) 1972-08-16

Family

ID=25344019

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39998/70A Expired GB1285288A (en) 1969-10-08 1970-08-19 Multiple character generator

Country Status (4)

Country Link
US (1) US3617722A (en)
JP (1) JPS511369B1 (en)
DE (1) DE2042596A1 (en)
GB (1) GB1285288A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE405515B (en) * 1975-09-25 1978-12-11 Siemens Ag DEVICE FOR ENTRYING AND CODING THE DATA SIGNS
JPS5757307A (en) * 1980-09-25 1982-04-06 Fanuc Ltd Input device of key information for numerical controller
JPS5920039A (en) * 1982-07-23 1984-02-01 Casio Comput Co Ltd Data input confirming system
US5786776A (en) * 1995-03-13 1998-07-28 Kabushiki Kaisha Toshiba Character input terminal device and recording apparatus
JPH1118127A (en) * 1997-06-27 1999-01-22 Nec Corp Display controller for communications equipment and its method

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3396377A (en) * 1964-06-29 1968-08-06 Gen Electric Display data processor
US3440638A (en) * 1965-04-08 1969-04-22 Bendix Corp Data display system with lateral photocell for digital repositioning of displayed data
US3483547A (en) * 1965-09-20 1969-12-09 Bunker Ramo Display apparatus
US3453384A (en) * 1965-12-07 1969-07-01 Ibm Display system with increased manual input data rate
US3422420A (en) * 1966-03-23 1969-01-14 Rca Corp Display systems

Also Published As

Publication number Publication date
JPS511369B1 (en) 1976-01-16
US3617722A (en) 1971-11-02
DE2042596A1 (en) 1971-04-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee