GB937611A - Improvements in or relating to reversible electronic counters - Google Patents

Improvements in or relating to reversible electronic counters

Info

Publication number
GB937611A
GB937611A GB1101059A GB1101059A GB937611A GB 937611 A GB937611 A GB 937611A GB 1101059 A GB1101059 A GB 1101059A GB 1101059 A GB1101059 A GB 1101059A GB 937611 A GB937611 A GB 937611A
Authority
GB
United Kingdom
Prior art keywords
counter
registered
zero
negative
highest order
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
GB1101059A
Inventor
John Anthony Goss
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.)
RACAL ELECTRONICS Ltd
Original Assignee
RACAL ELECTRONICS Ltd
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 RACAL ELECTRONICS Ltd filed Critical RACAL ELECTRONICS Ltd
Priority to GB1101059A priority Critical patent/GB937611A/en
Publication of GB937611A publication Critical patent/GB937611A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Landscapes

  • Manipulation Of Pulses (AREA)

Abstract

937,611. Electronic counting - apparatus. RACAL ELECTRONICS Ltd. March 31, 1960 [April 1, 1959], No. 11010/59. Drawings to Specification. Class 106 (1). In a reversible electronic counter, means are provided for determining whether the member registered therein is positive, negative or zero. As described, series of alternate " add " and " subtract " check pulses are supplied to an n stage decimal counter at times different from the pulses to be counted and the state of the highest decimal order is observed. The n stage counter is restricted to a capacity Π10<SP>n-1</SP>-1, negative numbers being registered in complement form and according as highest order remains at " 0 " or " 9," the number registered is positive or negative. If the highest order changes repeatedly at the check pulse frequency between " 9 " and " 0," the number registered in the counter is zero. The highest order may be connected to a flip-flop, the changing state of this when zero is registered in the counter being detected by a differentiating and integrating circuit. The invention is particularly applicable to counters employing ferrite cores.
GB1101059A 1959-04-01 1959-04-01 Improvements in or relating to reversible electronic counters Expired GB937611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1101059A GB937611A (en) 1959-04-01 1959-04-01 Improvements in or relating to reversible electronic counters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1101059A GB937611A (en) 1959-04-01 1959-04-01 Improvements in or relating to reversible electronic counters

Publications (1)

Publication Number Publication Date
GB937611A true GB937611A (en) 1963-09-25

Family

ID=9978394

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1101059A Expired GB937611A (en) 1959-04-01 1959-04-01 Improvements in or relating to reversible electronic counters

Country Status (1)

Country Link
GB (1) GB937611A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445430A (en) * 1966-06-22 1969-05-20 Kenneth Petersen Resins containing boron

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445430A (en) * 1966-06-22 1969-05-20 Kenneth Petersen Resins containing boron

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