CH625671GA3 - Electronic frequency converter and timepiece equipped with this converter - Google Patents
Electronic frequency converter and timepiece equipped with this converter Download PDFInfo
- Publication number
- CH625671GA3 CH625671GA3 CH398876A CH398876A CH625671GA3 CH 625671G A3 CH625671G A3 CH 625671GA3 CH 398876 A CH398876 A CH 398876A CH 398876 A CH398876 A CH 398876A CH 625671G A3 CH625671G A3 CH 625671GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- converter
- group
- binary registers
- cascaded
- frequency
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04F—TIME-INTERVAL MEASURING
- G04F5/00—Apparatus for producing preselected time intervals for use as timing standards
- G04F5/04—Apparatus for producing preselected time intervals for use as timing standards using oscillators with electromechanical resonators producing electric oscillations or timing pulses
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C17/00—Indicating the time optically by electric means
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G3/00—Producing timing pulses
- G04G3/02—Circuits for deriving low frequency timing pulses from pulses of higher frequency
- G04G3/022—Circuits for deriving low frequency timing pulses from pulses of higher frequency the desired number of pulses per unit of time being obtained by adding to or substracting from a pulse train one or more pulses
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G9/00—Visual time or date indication means
- G04G9/0082—Visual time or date indication means by building-up characters using a combination of indicating elements and by selecting desired characters out of a number of characters or by selecting indicating elements the positions of which represents the time, i.e. combinations of G04G9/02 and G04G9/08
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Electromechanical Clocks (AREA)
- Electric Clocks (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
The electronic converter comprises a first group of cascaded binary registers, a plurality of cascaded logic gates which are connected to the binary registers in order to divide the frequency of the signals which it receives by a fractional number and a second group of cascaded binary registers whose input is connected to the output of the last gate in order to produce at the output of the second group an approximately decimal fraction of the frequency at the input of the first group of binary registers. The converter is used in a timepiece with single time base which, besides the displaying of time in hours, minutes and seconds, has a chronograph function with indication of tenths or hundredths of a second. <IMAGE>
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB16825/75A GB1513941A (en) | 1975-04-23 | 1975-04-23 | Electronic timepiece for time of day and chronograph functions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CH625671B CH625671B (en) | |
| CH625671GA3 true CH625671GA3 (en) | 1981-10-15 |
Family
ID=10084366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH398876A CH625671GA3 (en) | 1975-04-23 | 1976-03-31 | Electronic frequency converter and timepiece equipped with this converter |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JPS51130266A (en) |
| CH (1) | CH625671GA3 (en) |
| FR (1) | FR2308971A1 (en) |
| GB (1) | GB1513941A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2804041C3 (en) * | 1978-01-31 | 1983-11-17 | Gebrüder Junghans GmbH, 7230 Schramberg | Electronic clock |
| DE2821619C3 (en) * | 1978-05-18 | 1981-05-21 | Gebrüder Junghans GmbH, 7230 Schramberg | Electronic clock with analog display and hands and liquid crystal display unit |
| JPS5578979U (en) * | 1978-11-24 | 1980-05-30 | ||
| JP6853093B2 (en) * | 2017-03-30 | 2021-03-31 | シチズン時計株式会社 | Counter circuit |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5941153B2 (en) * | 1972-09-22 | 1984-10-04 | シチズン時計株式会社 | Quartz watch with competition timekeeping device |
| JPS5028367A (en) * | 1973-07-11 | 1975-03-22 |
-
1975
- 1975-04-23 GB GB16825/75A patent/GB1513941A/en not_active Expired
-
1976
- 1976-03-31 CH CH398876A patent/CH625671GA3/en not_active IP Right Cessation
- 1976-04-14 JP JP51041431A patent/JPS51130266A/en active Pending
- 1976-04-16 FR FR7613071A patent/FR2308971A1/en active Granted
- 1976-06-14 JP JP51069628A patent/JPS5255669A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2308971B1 (en) | 1981-06-19 |
| JPS51130266A (en) | 1976-11-12 |
| JPS5255669A (en) | 1977-05-07 |
| FR2308971A1 (en) | 1976-11-19 |
| CH625671B (en) | |
| GB1513941A (en) | 1978-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |