GB1486135A - Electric timepiece - Google Patents
Electric timepieceInfo
- Publication number
- GB1486135A GB1486135A GB412475A GB412475A GB1486135A GB 1486135 A GB1486135 A GB 1486135A GB 412475 A GB412475 A GB 412475A GB 412475 A GB412475 A GB 412475A GB 1486135 A GB1486135 A GB 1486135A
- Authority
- GB
- United Kingdom
- Prior art keywords
- time
- july
- timepiece
- display
- mains
- 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
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
- G04G9/10—Visual 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
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C10/00—Arrangements of electric power supplies in time pieces
- G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply
-
- 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
- G04G13/028—Producing acoustic time signals at preselected times, e.g. alarm clocks combined with a radio
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electric Clocks (AREA)
- Measurement Of Predetermined Time Intervals (AREA)
Abstract
1486135 Electronic timepieces FUNAI ELECTRIC CO Ltd 30 Jan 1975 [18 July 1974 22 July 1974 (3) 26 July 1974] 4124/75 Heading G3T [Also in Division H3] An electronic timepiece energized by A.C. mains, uses the mains frequency as a timing reference and has means which, following a power supply interruption, warn that the time displayed is incorrect. The timepiece may be combined with a radio receiver and switches the receiver ON or OFF automatically at predetermined times to function for example as a waking alarm. The timepiece comprises a gas discharge time display tube 2, Figs. 2, 4, driven by an LSIC timing circuit 28 which receives timing reference pulses from power supply circuit 27. Following a power interruption colon dots remain unenergized until the time display is advanced to the correct time by manual operation of a switch 55. Alternatively the colon dots may be maintained continuously ON as in Fig. 5 arrangement (not shown), the colon dots being repeatedly switched ON/OFF when the correct time is being displayed. In another alternative Figs. 6 and 7 (not shown), illumination of the gas discharge tube 2 is prevented until the time advancing switch 55 is operated; in Figs. 8, 9 (not shown), a warning lamp or buzzer is opereated and in Figs. 10, 11 (not shown), an outage detection circuit resets the time display to 00:00 the reset being maintained by a charge on a capacitor until the time advancing switch is operated. In a further alternative, Fig. 19 (not shown), a shutter is moved across the display in the event of mains failure. Interference with the radio by the clock is reduced by enclosing the clock unit in a metal box as in Figs. 12, 14 (not shown), the display tube being viewed through a metallic mesh, or a light penetratable shield in the form of a coating or film.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP49082868A JPS5111362A (en) | 1974-07-18 | 1974-07-18 | |
JP49084383A JPS5112765A (en) | 1974-07-22 | 1974-07-22 | |
JP49084382A JPS5112764A (en) | 1974-07-22 | 1974-07-22 | |
JP49084381A JPS5112763A (en) | 1974-07-22 | 1974-07-22 | |
JP49086263A JPS5741716B2 (en) | 1974-07-26 | 1974-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1486135A true GB1486135A (en) | 1977-09-21 |
Family
ID=27525000
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB412475A Expired GB1486135A (en) | 1974-07-18 | 1975-01-30 | Electric timepiece |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2459937A1 (en) |
GB (1) | GB1486135A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136616A (en) * | 1983-02-25 | 1984-09-19 | Philips Electronic Associated | Automatic control of energisation of battery powered receiving apparatus |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2922621C2 (en) * | 1979-06-02 | 1985-10-31 | Braun Ag, 6000 Frankfurt | Electronic clock with alarm device |
JPS579138A (en) * | 1980-06-18 | 1982-01-18 | Clarion Co Ltd | Receiver with program reservation function |
-
1974
- 1974-12-18 DE DE19742459937 patent/DE2459937A1/en not_active Ceased
-
1975
- 1975-01-30 GB GB412475A patent/GB1486135A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2136616A (en) * | 1983-02-25 | 1984-09-19 | Philips Electronic Associated | Automatic control of energisation of battery powered receiving apparatus |
Also Published As
Publication number | Publication date |
---|---|
DE2459937A1 (en) | 1976-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1486135A (en) | Electric timepiece | |
GB1537137A (en) | Digital watch with oscillator/divider power selection | |
US3971205A (en) | All electronic-type timepiece | |
JPS5513806A (en) | Multifunction electronic timepiece | |
JPS5856440B2 (en) | analog clock lighting device | |
JPS5320974A (en) | Electronic watch with alarm | |
JPS5342079A (en) | Electronic watch | |
JPS5529728A (en) | Battery life display unit of electronic watch | |
JPS53107367A (en) | Electronic display type digital clock | |
JPS55107984A (en) | Electronic watch | |
JPS5255567A (en) | Electronic watch with battery life indicator | |
CH620089GA3 (en) | Electronic timepiece, especially electronic wristwatch, provided with a digital display device | |
JPS55105118A (en) | Service interruption compensating circuit for combustion control circuit | |
JPS5475837A (en) | Display circuit for air conditioner | |
JPS53101751A (en) | High frequency heater | |
JPS584797B2 (en) | Digital Hiyoji Dokei | |
JPS57110985A (en) | Electronic watch | |
JPS52119363A (en) | Electronic watch | |
JPS52127056A (en) | Counter | |
JPS57147622A (en) | Portable camera with electronic clock | |
JPS53133063A (en) | Electronic watch with alarm | |
JPS5388763A (en) | Crystal watch with battery life display function | |
JPS5283261A (en) | Electronic watch | |
JPS52119362A (en) | Electronic watch | |
JPS5413381A (en) | Electronic watch indicative of service interruption |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PE20 | Patent expired after termination of 20 years |
Effective date: 19950129 |