CA977160A - Electronic time measurement - Google Patents

Electronic time measurement

Info

Publication number
CA977160A
CA977160A CA172,198A CA172198A CA977160A CA 977160 A CA977160 A CA 977160A CA 172198 A CA172198 A CA 172198A CA 977160 A CA977160 A CA 977160A
Authority
CA
Canada
Prior art keywords
time measurement
electronic time
electronic
measurement
time
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
CA172,198A
Other versions
CA172198S (en
Inventor
Paul L. Chapman
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.)
RCA Corp
Original Assignee
RCA 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
Priority claimed from GB2579072A external-priority patent/GB1428121A/en
Application filed by RCA Corp filed Critical RCA Corp
Application granted granted Critical
Publication of CA977160A publication Critical patent/CA977160A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/08—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/12—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals
    • G04G9/126—Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques using light valves, e.g. liquid crystals provided with means for displaying at will a time indication or a date or a part thereof
    • 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
CA172,198A 1972-06-02 1973-05-24 Electronic time measurement Expired CA977160A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2579072A GB1428121A (en) 1972-06-02 1972-06-02 Electronic time measurement
US29131472A 1972-09-22 1972-09-22

Publications (1)

Publication Number Publication Date
CA977160A true CA977160A (en) 1975-11-04

Family

ID=26257879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA172,198A Expired CA977160A (en) 1972-06-02 1973-05-24 Electronic time measurement

Country Status (5)

Country Link
JP (1) JPS4956678A (en)
CA (1) CA977160A (en)
CH (2) CH566586A (en)
DE (1) DE2327685C3 (en)
FR (1) FR2186685B1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH607878B (en) * 1975-04-22 Casio Computer Co Ltd STOPWATCH.
JPS6015901B2 (en) * 1975-05-30 1985-04-22 カシオ計算機株式会社 time measuring device
JPS529472A (en) * 1975-07-11 1977-01-25 Toshiba Battery Co Ltd Electronic digital stop watch
JPS5231465U (en) * 1975-08-27 1977-03-05
JPS6027957B2 (en) * 1976-03-31 1985-07-02 セイコーインスツルメンツ株式会社 alarm electronic clock
JPS5590993U (en) * 1978-12-19 1980-06-23
JPS6022683A (en) * 1983-07-19 1985-02-05 Seiko Epson Corp Time measuring device
JPS6033080A (en) * 1983-08-03 1985-02-20 Sanyo Electric Co Ltd Microcomputer for timepiece

Also Published As

Publication number Publication date
FR2186685B1 (en) 1976-04-23
FR2186685A1 (en) 1974-01-11
JPS4956678A (en) 1974-06-01
CH802273A4 (en) 1975-03-14
CH566586A (en) 1975-09-15
DE2327685C3 (en) 1975-09-25
DE2327685A1 (en) 1973-12-20
DE2327685B2 (en) 1975-02-13

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