US3803827A - Solid state electronic wristwatch - Google Patents

Solid state electronic wristwatch Download PDF

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Publication number
US3803827A
US3803827A US32863973A US3803827A US 3803827 A US3803827 A US 3803827A US 32863973 A US32863973 A US 32863973A US 3803827 A US3803827 A US 3803827A
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Grant
Patent type
Prior art keywords
display
circuit
calendar
time
stations
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 - Lifetime
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D Roberts
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TIME COMPUTER
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TIME COMPUTER
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Publication date
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    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G17/00Structural details; Housings
    • G04G17/02Component assemblies
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G5/00Setting, i.e. correcting or changing, the time-indication
    • G04G5/04Setting, i.e. correcting or changing, the time-indication by setting each of the displayed values, e.g. date, hour, independently
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/0017Visual time or date indication means in which the light emitting display elements may be activated at will or are controlled in accordance with the ambient light
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/08Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/087Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques provided with means for displaying at will a time indication or a date or a part thereof
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/08Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/10Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
    • G04G9/102Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes using multiplexing techniques
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/08Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/10Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
    • G04G9/105Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes provided with date indication
    • GPHYSICS
    • G04HOROLOGY
    • G04GELECTRONIC TIME-PIECES
    • G04G9/00Visual time or date indication means
    • G04G9/08Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques
    • G04G9/10Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes
    • G04G9/107Visual time or date indication means by building-up characters using a combination of indicating elements, e.g. by using multiplexing techniques by controlling light sources, e.g. electroluminescent diodes provided with means for displaying at will a time indication or a date or a part thereof

Abstract

Disclosed is a solid state electronic wristwatch incorporating a calendar display. The same electro-optical elements are used for the calendar display as are used to display time. The principal components of both the time and calendar circuits may be formed on a single large scale integrated circuit chip. The watch is of modular construction for ease of assembly and reliability. Also disclosed is a setting magnet for the watch stored in the watch bracelet.

Description

United States Patent [191 [111 3,803,827 Roberts Apr. 16, 1974 4] SOLID STATE ELECTRONIC 3,668,861 6/1972 Mitsui 58/50 R WRISTWATCH 3,707,071 12/1972 Walton 58/50 R 3,664,116 5/1972 Emerson 58/50 R X [75] Inventor: Dennis A. Roberts, Washington Primary Examiner-Richard B. Wilkinson [73] Assignee: Time Computer, Inc., Lancaster, Pa. Assistant Examiner-Edith C. S. Jackmon Filed Feb 1 1973 Attorney, Agent, or Firm-LeBlanc & Shur [21] Appl. No.: 328,639 [57] 7 ABSTRACT [52] U 8 Cl 58/4 A 58/58 Disclosed is a solid state electronic wristwatch incor- [51] G04; 19/24 porating a calendar display. The same electro-optical 58] Fie'ld 23 R 50 R elements are used for the calendar display as are used 58/55 1 5 to display time. The principal components of both the time and calendar circuits may be formed on a single [56] Referen es Cited large scale integrated circuit chip. The watch is of c modular construction for ease of assembly and reli- UNITED STATES PATENTS ability. Also disclosed is a setting magnet for the 2,166,742 H1365 Sherwin 58/50 R X watch stored in the watch bracelet.

,328,954 7/1 67 Miller... 3,613,351 10/1971 Walton.... 20 Claims, 38 Drawing Figures 5a 62 FREQUENCY g FREQUENCY DISPLAY I STANDARD CONVERTER ACTUATOR ?AIENTEDAPR 16 m4 SHEET 01. or 19 PATENTEDAPR 16 I974 FIG. 8A

236 OSCILLATOR 56 7 saw m u? 1 SEE FIG. 5B

PATENTEHAPR is 1914 LN DECODER SEE FIG. 8A

sum as or 19 DISPLAY INTENSITY CONTROL SEE FIG. 8C

Y PATENTEDAPR 16 m4 3 803827" SHEET 08BF19 PATENTEUAPR 16 IBM SHEET agamaoazv MTENTED'APR 16 m4 sum 10 or 19 I a I I I l .1

man

PATENTEDAPR 16 I974 sum "11 or 19 E dE ' PATENTED APR-16 mu SHEET 12 0F 19 ZATENTEU APR 1 6 1974 SHEET 13 OF 19 FIG. I8

PATEMTEDAPMW agawafizir sum 15 or 19 FIG. 22

PATENTEDAPR 16 m4 sum 17 a? 19 FIG.

FIG. 28

PATENTEDAPR 16 I974 sum 19 0r 1

Claims (20)

1. A wristwatch comprising a source of constant frequency signals, a time computing circuit coupled to said constant frequency source, a calendar circuit coupled to said time computing circuit, an electro-optical digital display, said time computing circuit and said calendar circuit respectively producing time and calendar information in binary coded decimal form, a common decoder coupling both said time computing circuit and said calendar circuit to said display, a first manually operated switch coupled to said time computing circuit for energizing said display from said time computing circuit in response to operation of said first switch, a second manually operated switch coupled to said calendar circuit for energizing said display from said calendar circuit in response to operation of said second switch, strobing means in said time computing circuit so that time information appears on only one of said four stations at a time, and means coupling said strobing means to said calendar circuit for strobing the calendar information supplied to said display from said calendar circuit.
2. A wristwatch according to claim 1 wherein both said switches are magnetic field responsive devices.
3. A wristwatch according to claim 1 wherein both said switches are magnetic reed switches.
4. A wristwatch according to claim 1 including timing means coupled to said first switch for energizing said display a predetermined length of time in response to operation of said first switch.
5. A wristwatch according to claim 1 including a third minute set switch coupled to said time computing circuit and a fourth hour set switch coupled to said time computing circuit for setting minutes and hours respectively in said display.
6. A wristwatch according to claim 5 including means coupling said first and second switches to said display whereby simultaneous operation of said first and second switches causes the day to be displayed and set on said display.
7. A wristwatch according to claim 6 including means coupling said second and fourth switches to sAid display whereby simultaneous operation of said second and fourth switches causes the month to be displayed and set on said display.
8. A wristwatch according to claim 1 wherein said time computing circuit comprises a seconds register, a minutes register and an hours register, and said calendar circuit comprises an am.m/p.m. counter coupled to the output of said hours register, a day counter coupled to the output of said a.m./p.m. counter, and a month counter coupled to the output of said day counter.
9. A wristwatch according to claim 8 wherein said display includes a pair of colon dots, and means coupling said a.m./p.m. counter to said colon dots.
10. A wristwatch according to claim 8 wherein said hours register counts from one to twelve, and month discriminator means coupling said day and month counters whereby the total count of said day counter is varied in accordance with the count in said month counter.
11. A wristwatch according to claim 8 wherein said display comprises a pair of hours stations and a pair of minutes stations, and means for coupling said month counter to said hours stations and said day counter to said minutes stations.
12. A wristwatch according to claim 11 including means coupling said minutes stations to said seconds register whereby said minutes stations may also display seconds time information.
13. A timepiece of sufficiently small size and power consumption for use as a wristwatch comprising a case, a one-piece frame of electrical insulating material mounted in said case, a frequency standard and an electro-optical display mounted on said frame in said case, a time computing circuit coupling said frequency standard to said display, and a calendar circuit coupled between said time computing circuit and said display, said time computing and calendar circuits both being mounted on said frame in said case.
14. A timepiece according to claim 13 including a battery removably mounted on said frame.
15. A timepiece according to claim 14 wherein said battery is mounted on one side of said frame and said display and both said circuits are mounted on the other side of said frame, said battery being coupled to said circuits and said display through apertures in said frame.
16. A timepiece according to claim 15 wherein said frequency standard comprises a crystal oscillator including a trimmer capacitor, said capacitor being mounted on the same side of said frame as said battery.
17. A timepiece according to claim 16 wherein said case includes a removable back plate for easy access to said battery trimmer capacitor.
18. A timepiece according to claim 17 including a substrate mounted on the other side of said frame, both said time computing and calendar circuits being mounted on said substrate.
19. A timepiece of sufficiently small size and power consumption for use as a wristwatch comprising a frequency standard, a time computing circuit coupled to said frequency standard, a calendar circuit coupled to said time computer circuit, an electro-optical digital display, a common decoder coupling both said time computing circuit and said calendar circuit to said display, said display comprising four display stations for displaying time, said calendar circuit including means for supplying day information to two of said stations and month information to the other two stations, said display comprising a pair of colon dots between the second and third of said stations, said calendar circuit including means for supplying a.m. and p.m. information to said colon dots, strobing means in said time computing circuit so that time information appears on only one of said four stations at a time, and means coupling said strobing means to said calendar circuit for strobing the calendar information supplied to said display from said calendar circuit.
20. A timepiece of sufficiently small size and power consumption for use as a wristwatch comprising a frequency standard, a time computing circuit coupled to said frequency standard, a calendAr circuit coupled to said time computer circuit, an electro-optical digital display, a common decoder coupling both said time computing circuit and said calendar circuit to said display, said display comprising four display stations for displaying time, said calendar circuit including means for supplying day information to two of said stations and month information to the other two stations, said calendar circuit including means for optionally blanking two of said stations so that the month information from said calendar circuit is not displayed, strobing means in said time computing circuit so that time information appears on only one of said four stations at a time, and means coupling said strobing means to said calendar circuit for strobing the calendar information supplied to said display from said calendar circuit.
US3803827A 1973-02-01 1973-02-01 Solid state electronic wristwatch Expired - Lifetime US3803827A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3803827A US3803827A (en) 1973-02-01 1973-02-01 Solid state electronic wristwatch

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US3803827A US3803827A (en) 1973-02-01 1973-02-01 Solid state electronic wristwatch
CA 179887 CA977981A (en) 1973-02-01 1973-08-29 Solid state electronic wristwatch
GB4157873A GB1444762A (en) 1973-02-01 1973-09-04 Solid state electronic wristwatch
US3866406A US3866406A (en) 1973-02-01 1973-10-16 Solid state electronic wristwatch
DE19732361149 DE2361149A1 (en) 1973-02-01 1973-12-07 Electronic chronometers, particularly wristwatch
FR7401269A FR2216612B1 (en) 1973-02-01 1974-01-15

Publications (1)

Publication Number Publication Date
US3803827A true US3803827A (en) 1974-04-16

Family

ID=23281786

Family Applications (1)

Application Number Title Priority Date Filing Date
US3803827A Expired - Lifetime US3803827A (en) 1973-02-01 1973-02-01 Solid state electronic wristwatch

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Country Link
US (1) US3803827A (en)
CA (1) CA977981A (en)
DE (1) DE2361149A1 (en)
FR (1) FR2216612B1 (en)
GB (1) GB1444762A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3945191A (en) * 1974-01-14 1976-03-23 Zenith Radio Corporation Electronic timepiece having complementary electro-optical and electro-mechanical displays
US3950940A (en) * 1973-08-02 1976-04-20 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3965466A (en) * 1973-04-23 1976-06-22 Sharp Kabushiki Kaisha Digital display
US3968640A (en) * 1974-09-16 1976-07-13 Hughes Aircraft Company Digital watch with elastomer housing block and flexible printed circuitry
US3992871A (en) * 1972-10-09 1976-11-23 Kabushiki Kaisha Suwa Seikosha Chronograph wristwatch
FR2324193A1 (en) * 1975-09-16 1977-04-08 Seiko Instr & Electronics Support for electronic components
US4060971A (en) * 1974-09-10 1977-12-06 Time Computer, Inc. Solid state watch with inertial switch
US4064689A (en) * 1973-07-20 1977-12-27 Citizen Watch Co., Ltd. Electronic timepiece with electro-optical display
US4150535A (en) * 1974-10-31 1979-04-24 Citizen Watch Company Limited Electronic timepiece
US4184319A (en) * 1976-07-07 1980-01-22 Sharp Kabushiki Kaisha Digital display type electronic time piece
FR2431724A1 (en) * 1978-07-18 1980-02-15 Borletti Spa Electronic device clock use and / or timed digital signage
US7428191B1 (en) 2006-05-01 2008-09-23 Klein Dennis L Electronic timepiece with inverted digital display

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127967A (en) * 1974-09-03 1976-03-09 Suwa Seikosha Kk
US4092822A (en) * 1974-12-11 1978-06-06 Ebauches Sa Control device for an electronic wrist-watch
US4024678A (en) * 1975-01-10 1977-05-24 Ebauches S.A. Control and correction circuit for an electronic watch
JPS6015901B2 (en) * 1975-05-30 1985-04-22 Kashio Keisanki Kk

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166742A (en) * 1963-03-22 1965-01-19 American Sign & Indicator Co Control for lamp bank displays
US3328954A (en) * 1965-04-22 1967-07-04 Mendell E Miller Electronic digital readout time indicating device
US3613351A (en) * 1969-05-13 1971-10-19 Hamilton Watch Co Wristwatch with liquid crystal display
US3664116A (en) * 1970-04-06 1972-05-23 Gen Electric Digital clock controlled by voltage level of clock reference signal
US3668861A (en) * 1970-11-17 1972-06-13 Suwa Seikosha Kk Solid state electronic watch
US3707071A (en) * 1971-03-12 1972-12-26 Hamilton Watch Co Solid state timepiece

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3166742A (en) * 1963-03-22 1965-01-19 American Sign & Indicator Co Control for lamp bank displays
US3328954A (en) * 1965-04-22 1967-07-04 Mendell E Miller Electronic digital readout time indicating device
US3613351A (en) * 1969-05-13 1971-10-19 Hamilton Watch Co Wristwatch with liquid crystal display
US3664116A (en) * 1970-04-06 1972-05-23 Gen Electric Digital clock controlled by voltage level of clock reference signal
US3668861A (en) * 1970-11-17 1972-06-13 Suwa Seikosha Kk Solid state electronic watch
US3707071A (en) * 1971-03-12 1972-12-26 Hamilton Watch Co Solid state timepiece

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4287585A (en) * 1972-10-09 1981-09-01 Kabushiki Kaisha Suwa Seikosha Chronograph wristwatch
US3992871A (en) * 1972-10-09 1976-11-23 Kabushiki Kaisha Suwa Seikosha Chronograph wristwatch
US3965466A (en) * 1973-04-23 1976-06-22 Sharp Kabushiki Kaisha Digital display
US4064689A (en) * 1973-07-20 1977-12-27 Citizen Watch Co., Ltd. Electronic timepiece with electro-optical display
US3950940A (en) * 1973-08-02 1976-04-20 Kabushiki Kaisha Suwa Seikosha Electronic timepiece
US3945191A (en) * 1974-01-14 1976-03-23 Zenith Radio Corporation Electronic timepiece having complementary electro-optical and electro-mechanical displays
US4060971A (en) * 1974-09-10 1977-12-06 Time Computer, Inc. Solid state watch with inertial switch
US3968640A (en) * 1974-09-16 1976-07-13 Hughes Aircraft Company Digital watch with elastomer housing block and flexible printed circuitry
US4150535A (en) * 1974-10-31 1979-04-24 Citizen Watch Company Limited Electronic timepiece
FR2324193A1 (en) * 1975-09-16 1977-04-08 Seiko Instr & Electronics Support for electronic components
US4184319A (en) * 1976-07-07 1980-01-22 Sharp Kabushiki Kaisha Digital display type electronic time piece
FR2431724A1 (en) * 1978-07-18 1980-02-15 Borletti Spa Electronic device clock use and / or timed digital signage
US7428191B1 (en) 2006-05-01 2008-09-23 Klein Dennis L Electronic timepiece with inverted digital display

Also Published As

Publication number Publication date Type
GB1444762A (en) 1976-08-04 application
FR2216612B1 (en) 1977-09-09 grant
CA977981A (en) 1975-11-18 grant
FR2216612A1 (en) 1974-08-30 application
DE2361149A1 (en) 1974-08-15 application
CA977981A1 (en) grant

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