GB1561069A - Programmmable calculator - Google Patents

Programmmable calculator Download PDF

Info

Publication number
GB1561069A
GB1561069A GB39290/76A GB3929076A GB1561069A GB 1561069 A GB1561069 A GB 1561069A GB 39290/76 A GB39290/76 A GB 39290/76A GB 3929076 A GB3929076 A GB 3929076A GB 1561069 A GB1561069 A GB 1561069A
Authority
GB
United Kingdom
Prior art keywords
program
chip
calculator
register
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.)
Expired
Application number
GB39290/76A
Other languages
English (en)
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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
Priority claimed from US05/622,288 external-priority patent/US4006455A/en
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Publication of GB1561069A publication Critical patent/GB1561069A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/10009—Improvement or modification of read or write signals
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/16—Error detection or correction of the data by redundancy in hardware
    • G06F11/1608—Error detection by comparing the output signals of redundant hardware
    • G06F11/1612—Error detection by comparing the output signals of redundant hardware where the redundant component is persistent storage

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Calculators And Similar Devices (AREA)
  • Input From Keyboards Or The Like (AREA)
GB39290/76A 1975-10-10 1976-09-22 Programmmable calculator Expired GB1561069A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62228075A 1975-10-10 1975-10-10
US05/622,288 US4006455A (en) 1975-10-10 1975-10-10 Error correction system in a programmable calculator

Publications (1)

Publication Number Publication Date
GB1561069A true GB1561069A (en) 1980-02-13

Family

ID=27089172

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39290/76A Expired GB1561069A (en) 1975-10-10 1976-09-22 Programmmable calculator

Country Status (7)

Country Link
JP (1) JPS5252539A (xx)
DE (1) DE2645641A1 (xx)
FR (1) FR2329018A1 (xx)
GB (1) GB1561069A (xx)
HK (1) HK35283A (xx)
IT (1) IT1074727B (xx)
SE (1) SE7611230L (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53135538A (en) * 1977-04-30 1978-11-27 Sharp Corp Electronic desk computer with program
JPS5863994A (ja) * 1981-10-12 1983-04-16 カシオ計算機株式会社 電子楽器
JPS61662U (ja) * 1985-05-16 1986-01-06 シャープ株式会社 電子式計算機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2098984A5 (xx) * 1970-07-31 1972-03-10 Martin Elie
FR2245257A5 (xx) * 1973-07-03 1975-04-18 Anvar
US3855461A (en) * 1973-08-30 1974-12-17 Hewlett Packard Co Calculator with key code association and display features
US3976975A (en) * 1974-02-04 1976-08-24 Texas Instruments Incorporated Prompting calculator

Also Published As

Publication number Publication date
HK35283A (en) 1983-09-16
IT1074727B (it) 1985-04-20
FR2329018A1 (fr) 1977-05-20
JPS5252539A (en) 1977-04-27
FR2329018B1 (xx) 1982-10-01
SE7611230L (sv) 1977-04-11
DE2645641A1 (de) 1977-04-28

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19960921