US3866406A - Solid state electronic wristwatch - Google Patents

Solid state electronic wristwatch Download PDF

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Publication number
US3866406A
US3866406A US40694173A US3866406A US 3866406 A US3866406 A US 3866406A US 40694173 A US40694173 A US 40694173A US 3866406 A US3866406 A US 3866406A
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US
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Grant
Patent type
Prior art keywords
display
adjacent
cavities
permanent magnet
back plate
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
Application number
Inventor
Dennis A Roberts
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.)
TIME COMPUTER Inc
TIME COMPUTER
Original Assignee
TIME COMPUTER
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.)
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Publication date
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    • 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
    • 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

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 Roberts 1 Feb. 18, 1975 l l SOLID STATE ELECTRONIC WRISTWATCH [75] Inventor: Dennis A. Roberts, Washington Boro, Pa.

[73] Assignee: Time Computer, Inc., Lancaster, Pa.

[22] Filed: Oct. 16, 1973 [21] Appl. No.: 406,941

Related U.S. Application Data [62] Division of Ser. No. 328,639, Feb. I, 1973, Pat. No.

[52] U.S. Cl 58/4 A, 58/55, 58/58, 58/855, 58/88 R [5 1] Int. Cl.v G04b 19/24, G04b 37/00, G04b 27/00 [58] Field of Search 58/4 A. 23 R, 50 R, 52, 58/55, 58, 85.5, 88 R [56] References Cited UNITED STATES PATENTS 3,733,810 5/1973 Girard 58/50 R 3.759,03l 9/1973 McCullough 58/50 R Primary Emminer-Edith Simmons Jackmon Attorney, Agent, or FirmLeBlanc & Shur [57] 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.

3 Claims, 38 Drawing Figures PAIENTEUFEBWIQYS 3.866.406

sum [310F19 so 2 FREQU FREQUENCY DISPLAY 56 STAND CONVERTER ACTUATOR FIG. 5

PATENTED I 8 I975 3 866,406

SHEET on HF 19 FIG. 8A

SEE FIG. 5

OPTIONAL 286 INPUT olcnw I OSCILLATOR l 2 -\TENTEU 3 SHEET USUF 19 DECODER FIG. 88

SEE FIG. 8A

SEE FIG. 8C

9 m 242 DISPLAY INTENSITY CONTROL SEE FIGv 8B Pmmm 81% 3,866,406

SHEET UBUF 19 STROBING CIRCUIT 288 l 215 G I F|G.8C

2H2 UPDATE HOUR SET FATENTEI] FEB 1 8 I975 866 .406

SHEET 07 0F 19 READ PATENTEU 3866, 106

sum 08 0F 19 PATENTED 81975 SHEET USUF 19 mm FEB] 8 SHEET 1UUF 19 hum 52 llllllllllllllllll PATHHED 3, 666.406

SHEET l3UF 19 FIG. l8

itiTENHU FEB 1 8 W5 3, 866,406

SHEET 1UOF19 FIG. 2|

PATENTED EB 1 8% 3'. 866,406

SHEET lSOF 19 FIG. 22

PM'ENTEDFEBI 81915 3; 866,406

SHEET 170F 19 FIG. 28

SHEET 19UF19 mm 6E

Claims (3)

1. A wristwatch comprising a wristwatch case having a front window and a removable back plate, a one-piece frame of electrical insulating material in said case having one side adjacent said back plate and its other side adjacent said window, said frame including cavities on said one side, a trimmer capacitor in one of said cavities, the other of said cavities being adapted to removably receive a battery, a substrate mounted on said other side of said frame, an electro-optical display comprising a plurality of light-emitting diode digital display stations, a time computing circuit comprising at least a minute counter and an hour counter and a calendar circuit, said display, time computing circuit and calendar circuit all being on said substrate, both said time computing circuit and said calendar circuit being formed as large scale integrated circuits and coupled to said display, said frame including four additional cavities, magnetic field responsive reed switches in each of said four cavities, said switches comprising a time demand switch for coupling said time computing circuit to said display, a daTe demand switch for coupling said calendar circuit to said display, a minute set switch for setting said minute counter, and an hour set switch 2 for setting said hour counter, a pushbutton on said case adjacent each of said time demand and date demand switches for actuating them, a first permanent magnet receiving identation on said back plate adjacent said minute set switch, and a second permanent magnet receiving identation on said back plate adjacent said hour set switch whereby insertion of a permanent magnet into one of said indentations actuates the adjacent switch.
2. A wristwatch according to claim 1 including a wristband connected to said case and having a support for a permanent magnet insertable into said indentations in said back plate.
3. A wristwatch according to claim 2 including a generally horseshoe shaped permanent magnet received in said support.
US3866406A 1973-02-01 1973-10-16 Solid state electronic wristwatch Expired - Lifetime US3866406A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US3803827A US3803827A (en) 1973-02-01 1973-02-01 Solid state electronic wristwatch
US3866406A US3866406A (en) 1973-02-01 1973-10-16 Solid state electronic wristwatch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US3866406A US3866406A (en) 1973-02-01 1973-10-16 Solid state electronic wristwatch

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US3866406A true US3866406A (en) 1975-02-18

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US3866406A Expired - Lifetime US3866406A (en) 1973-02-01 1973-10-16 Solid state electronic wristwatch

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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991553A (en) * 1974-10-31 1976-11-16 Time Computer, Inc. Low voltage battery indicator for a solid state watch
US4015422A (en) * 1975-06-02 1977-04-05 Bulova Watch Company, Inc. Solid-state electronic watch assembly
US4020627A (en) * 1973-10-06 1977-05-03 Citizen Watch Co., Ltd. Liquid crystal display electronic watch
US4058970A (en) * 1975-03-12 1977-11-22 Kabushiki Kaisha Suwa Seikosha Digital display electronic timepiece
US4070821A (en) * 1976-03-22 1978-01-31 Hughes Aircraft Company Electric watch battery contact spring
US4078376A (en) * 1975-07-21 1978-03-14 Freeman Alfred B Electronic watch having optical and audible readouts and alarm and stopwatch capabilities
US4083175A (en) * 1975-05-14 1978-04-11 Frontier Manufacturing, Inc. Solid state watch with single time and date selector button
US4092822A (en) * 1974-12-11 1978-06-06 Ebauches Sa Control device for an electronic wrist-watch
US4095412A (en) * 1975-06-16 1978-06-20 Hughes Aircraft Company Flexible cable for digital watch
US4112669A (en) * 1975-10-13 1978-09-12 Kabushiki Kaisha Daini Seikosha Digital electronic timepiece
US4114366A (en) * 1976-08-02 1978-09-19 Texas Instruments Incorporated Digital brightness control system
US4142359A (en) * 1975-12-19 1979-03-06 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4176517A (en) * 1974-09-30 1979-12-04 Citizen Watch Co. Ltd. Integrated circuit for timepiece
US4196580A (en) * 1977-08-09 1980-04-08 Ebauches S.A. Electronic watch having correction means
EP0063771A1 (en) * 1981-04-22 1982-11-03 Olympus Optical Co., Ltd. Leap year compensation system
US4382687A (en) * 1975-12-22 1983-05-10 Lemelson Jerome H Electronic digital watch
USRE31401E (en) * 1975-12-19 1983-10-04 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4466742A (en) * 1977-12-22 1984-08-21 Lemelson Jerome H Electronic digital watch

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733810A (en) * 1970-03-06 1973-05-22 Rolex Montres Timepiece with electronically designed digital read-out
US3759031A (en) * 1972-01-26 1973-09-18 Hmw Industries Modular solid state wristwatch

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3733810A (en) * 1970-03-06 1973-05-22 Rolex Montres Timepiece with electronically designed digital read-out
US3759031A (en) * 1972-01-26 1973-09-18 Hmw Industries Modular solid state wristwatch

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020627A (en) * 1973-10-06 1977-05-03 Citizen Watch Co., Ltd. Liquid crystal display electronic watch
US4176517A (en) * 1974-09-30 1979-12-04 Citizen Watch Co. Ltd. Integrated circuit for timepiece
US3991553A (en) * 1974-10-31 1976-11-16 Time Computer, Inc. Low voltage battery indicator for a solid state watch
US4092822A (en) * 1974-12-11 1978-06-06 Ebauches Sa Control device for an electronic wrist-watch
US4058970A (en) * 1975-03-12 1977-11-22 Kabushiki Kaisha Suwa Seikosha Digital display electronic timepiece
US4083175A (en) * 1975-05-14 1978-04-11 Frontier Manufacturing, Inc. Solid state watch with single time and date selector button
US4015422A (en) * 1975-06-02 1977-04-05 Bulova Watch Company, Inc. Solid-state electronic watch assembly
US4095412A (en) * 1975-06-16 1978-06-20 Hughes Aircraft Company Flexible cable for digital watch
US4078376A (en) * 1975-07-21 1978-03-14 Freeman Alfred B Electronic watch having optical and audible readouts and alarm and stopwatch capabilities
US4112669A (en) * 1975-10-13 1978-09-12 Kabushiki Kaisha Daini Seikosha Digital electronic timepiece
USRE31401E (en) * 1975-12-19 1983-10-04 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4142359A (en) * 1975-12-19 1979-03-06 Kabushiki Kaisha Daini Seikosha Electronic timepiece
US4382687A (en) * 1975-12-22 1983-05-10 Lemelson Jerome H Electronic digital watch
US4070821A (en) * 1976-03-22 1978-01-31 Hughes Aircraft Company Electric watch battery contact spring
US4114366A (en) * 1976-08-02 1978-09-19 Texas Instruments Incorporated Digital brightness control system
US4196580A (en) * 1977-08-09 1980-04-08 Ebauches S.A. Electronic watch having correction means
US4466742A (en) * 1977-12-22 1984-08-21 Lemelson Jerome H Electronic digital watch
EP0063771A1 (en) * 1981-04-22 1982-11-03 Olympus Optical Co., Ltd. Leap year compensation system
US4447160A (en) * 1981-04-22 1984-05-08 Olympus Optical Co., Ltd. Leap year compensation circuit

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