GB1352544A - Digital clocks - Google Patents

Digital clocks

Info

Publication number
GB1352544A
GB1352544A GB1688771A GB1688771A GB1352544A GB 1352544 A GB1352544 A GB 1352544A GB 1688771 A GB1688771 A GB 1688771A GB 1688771 A GB1688771 A GB 1688771A GB 1352544 A GB1352544 A GB 1352544A
Authority
GB
United Kingdom
Prior art keywords
gate
numbers
improper
output
counters
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
GB1688771A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of GB1352544A publication Critical patent/GB1352544A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G5/00—Setting, i.e. correcting or changing, the time-indication
    • G04G5/02—Setting, i.e. correcting or changing, the time-indication by temporarily changing the number of pulses per unit time, e.g. quick-feed method
    • G—PHYSICS
    • G04—HOROLOGY
    • G04F—TIME-INTERVAL MEASURING
    • G04F10/00—Apparatus for measuring unknown time intervals by electric means
    • G04F10/04—Apparatus for measuring unknown time intervals by electric means by counting pulses or half-cycles of an AC
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G13/00—Producing acoustic time signals
    • G04G13/02—Producing acoustic time signals at preselected times, e.g. alarm clocks
    • G04G13/025—Producing acoustic time signals at preselected times, e.g. alarm clocks acting only at one preselected time
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G3/00—Producing timing pulses
    • G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
    • G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F7/00—Methods or arrangements for processing data by operating upon the order or content of the data handled
    • G06F7/60—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers
    • G06F7/68—Methods or arrangements for performing computations using a digital non-denominational number representation, i.e. number representation without radix; Computing devices using combinations of denominational and non-denominational quantity representations, e.g. using difunction pulse trains, STEELE computers, phase computers using pulse rate multipliers or dividers pulse rate multipliers or dividers per se

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • Computing Systems (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electric Clocks (AREA)
GB1688771A 1970-06-05 1971-05-25 Digital clocks Expired GB1352544A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4378670A 1970-06-05 1970-06-05

Publications (1)

Publication Number Publication Date
GB1352544A true GB1352544A (en) 1974-05-08

Family

ID=21928883

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1688771A Expired GB1352544A (en) 1970-06-05 1971-05-25 Digital clocks

Country Status (4)

Country Link
US (1) US3664117A (OSRAM)
CH (2) CH545507A (OSRAM)
DE (1) DE2126813A1 (OSRAM)
GB (1) GB1352544A (OSRAM)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5327630B1 (OSRAM) * 1971-03-20 1978-08-09
FR2169082B1 (OSRAM) * 1972-01-22 1977-02-04 Suwa Seikosha Kk
GB1481132A (en) * 1975-03-25 1977-07-27 Coal Ind Mining machines
US4193255A (en) * 1976-01-12 1980-03-18 Citizen Watch Co., Ltd. Electronic timepiece with calendar function
US4196583A (en) * 1976-03-19 1980-04-08 Kabushiki Kaisha Daini Seikosha Analogue electronic alarm timepiece
FR2492551B1 (fr) * 1980-10-21 1985-06-07 Suisse Horlogerie Procede pour comparer un etat horaire et le contenu d'un registre dans une piece d'horlogerie a rappel, circuit pour sa mise en oeuvre et utilisation de ce circuit
US4444512A (en) * 1981-10-21 1984-04-24 Societe Suisse Pour L'industrie Horlogere Management Services S.A. Method and circuit for comparing the timekeeping state and contents of a register in an electronic reminder giving timepiece

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3051855A (en) * 1959-09-23 1962-08-28 Bell Telephone Labor Inc Self-correcting ring counter
US3067936A (en) * 1959-11-16 1962-12-11 Itt Coin controlled computer
US3178586A (en) * 1961-03-23 1965-04-13 Bell Telephone Labor Inc Self-correcting shift-register distributor
US3163747A (en) * 1962-05-15 1964-12-29 Western Electric Co Circuit for analyzing selected patterns of multiple intelligence signals
US3307023A (en) * 1963-09-05 1967-02-28 Addressograph Multigraph Electronic counter
US3350580A (en) * 1965-11-30 1967-10-31 Sperry Rand Corp Monitor employing logic gate and counter to indicate normal pulse-train failure after predetermined time interval

Also Published As

Publication number Publication date
DE2126813A1 (OSRAM) 1971-12-16
CH796571A4 (OSRAM) 1973-06-29
US3664117A (en) 1972-05-23
CH545507A (OSRAM) 1974-01-31

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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