GB1446497A - Electronic timepiece - Google Patents
Electronic timepieceInfo
- Publication number
- GB1446497A GB1446497A GB2211874A GB2211874A GB1446497A GB 1446497 A GB1446497 A GB 1446497A GB 2211874 A GB2211874 A GB 2211874A GB 2211874 A GB2211874 A GB 2211874A GB 1446497 A GB1446497 A GB 1446497A
- Authority
- GB
- United Kingdom
- Prior art keywords
- feedback
- signal
- drive
- feedback amplifier
- circuit
- 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
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 3
- 230000010355 oscillation Effects 0.000 abstract 3
- 229910052710 silicon Inorganic materials 0.000 abstract 3
- 239000010703 silicon Substances 0.000 abstract 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 238000010276 construction Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000003534 oscillatory effect Effects 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 abstract 1
- 239000004065 semiconductor Substances 0.000 abstract 1
- 239000000758 substrate Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G99/00—Subject matter not provided for in other groups of this subclass
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
- G04C3/067—Driving circuits with distinct detecting and driving coils
- G04C3/068—Driving circuits with distinct detecting and driving coils provided with automatic control
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/04—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body
- H01L27/06—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration
- H01L27/0611—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region
- H01L27/0641—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being a semiconductor body including a plurality of individual components in a non-repetitive configuration integrated circuits having a two-dimensional layout of components without a common active region without components of the field effect type
- H01L27/0647—Bipolar transistors in combination with diodes, or capacitors, or resistors, e.g. vertical bipolar transistor and bipolar lateral transistor and resistor
Landscapes
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Electromagnetism (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Bipolar Transistors (AREA)
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Semiconductor Integrated Circuits (AREA)
Abstract
1446497 Electronic watches CITIZEN WATCH CO Ltd 17 May 1974 [24 May 1973] 22118/74 Heading G3T [ Also in Division H1] An electronic timepiece comprises an oscillatory body (e.g. a balance wheel or tuning fork) the amplitude of oscillation of which is maintained constant by a drive circuit, Fig. 5, including a drive coil LD and a detector coil L S which provides a feedback signal dependent upon the angular velocity of said body, or feedback amplifier Q4 to Q 11 which receives (via C 2 ) and amplifies this feedback signal, and a control means Q 1 to Q 3 also supplied with the feedback signal and including a differentiating circuit (C 1 ) and arranged to control the feedback amplifier, the control means and feedback amplifier being formed in a single monolithic (silicon) chip. In Fig. 5 the drive voltage output of the feedback amplifier is fed back to its input via R 9 which together with C2 forms a time constant circuit. The differentiated feedback signal via C 1 is amplified by Q 1 and Q 2 and when the amplified voltage exceeds the threshold level of Q 3 the latter conducts - as indicated by the shaded portions of the differentiated signal f' (A) in Fig. 3(b) which are added to the D.C. bias V B Fig. 3(c) applied to the feedback amplifier input at the base of Q4. The resultant input signal controls the amplifier output signal Fig. 3(c) from which drive pulses (shaded portions) are derived when the output signal exceeds a level Thp. If the oscillation amplitude of the body becomes smaller, the width Tp of drive pulse is increased as shown Fig. 3(c)B and vice versa as shown Fig. 3(c)C, and thereby the amplitude of oscillation is increased or decreased respectively. The resistor R 9 is in the order of 1000 M# and C2 is 200 pF. Both are formed by an MOS transistor Fig. 6 (not shown). To use as a resistor, the latter is provided with a gate of P-channel MOAOS construction comprising five layers Fig. 7 (not shown) - an aluminium electrode M, a protective oxide film O<SP>1</SP> of vapour deposited S i O 2 , an alumina film A, an oxide film O of thermally oxidized S i O 2 and a silicon substrate S of N-type. The oxide film layer primarily determines the resistance value of the MOS-R; examples of thickness thereof in relation to resistance values are given. The gate portion of the MOS-R may be used as a capacitor by making use of the N-channel type semi-conductor capacitance characteristic. The steps in forming the circuit of Fig. 5 in a monolithic silicon chip are described with reference to Fig. 9 (not shown).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP48057208A JPS5010168A (en) | 1973-05-24 | 1973-05-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1446497A true GB1446497A (en) | 1976-08-18 |
Family
ID=13049080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2211874A Expired GB1446497A (en) | 1973-05-24 | 1974-05-17 | Electronic timepiece |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3905188A (en) |
| JP (1) | JPS5010168A (en) |
| DE (1) | DE2425253B2 (en) |
| FR (1) | FR2231043B1 (en) |
| GB (1) | GB1446497A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51101478A (en) * | 1975-03-04 | 1976-09-07 | Suwa Seikosha Kk | |
| US4106280A (en) * | 1975-03-27 | 1978-08-15 | Hansrichard Schulz | Method and apparatus for synchronizing a mechanical oscillating system to the accuracy of a quartz standard |
| JPS5220120A (en) * | 1975-08-08 | 1977-02-15 | Touhoku Rikoo Kk | Printer using dielectric element and matrix type |
| JPS5230519A (en) * | 1975-09-04 | 1977-03-08 | Nippon Telegraph & Telephone | Printing head for picture element impact printer |
| US4300083A (en) * | 1977-07-05 | 1981-11-10 | Automation Devices, Inc. | Constant amplitude controller and method |
| US4333171A (en) * | 1979-09-04 | 1982-06-01 | Citizen Watch Co., Ltd. | Electronic timepiece with diffusion resistor for compensating threshold variations |
| JPS59196275A (en) * | 1983-04-21 | 1984-11-07 | Tokyo Electric Co Ltd | Printing hammer driving apparatus of printer |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3124731A (en) * | 1964-03-10 | Electronic time pieces | ||
| DE1448342A1 (en) * | 1960-03-31 | 1969-04-10 | Reich Robert W | Electronic drive principle for watches |
| GB1078790A (en) * | 1964-11-20 | 1967-08-09 | Nippon Electric Co | A resistor element and a manufacturing method therefor |
| US3447051A (en) * | 1965-01-13 | 1969-05-27 | Union Special Machine Co | Control circuit for electro-mechanical devices |
| CH466149A (en) * | 1966-12-22 | 1969-01-15 | Centre Electron Horloger | Maintenance circuit of a resonant mechanical device, of a timepiece |
| US3568430A (en) * | 1968-07-11 | 1971-03-09 | Hamilton Watch Co | Resistance bridge controlled timekeeping device |
| US3602842A (en) * | 1969-08-08 | 1971-08-31 | Scudder Smith | Electromechanical oscillator including a dual vibrator for producing a bent frequency |
| FR2138339B1 (en) * | 1971-05-24 | 1974-08-19 | Radiotechnique Compelec |
-
1973
- 1973-05-24 JP JP48057208A patent/JPS5010168A/ja active Pending
-
1974
- 1974-05-02 US US466223A patent/US3905188A/en not_active Expired - Lifetime
- 1974-05-17 GB GB2211874A patent/GB1446497A/en not_active Expired
- 1974-05-21 FR FR7417682A patent/FR2231043B1/fr not_active Expired
- 1974-05-24 DE DE2425253A patent/DE2425253B2/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| FR2231043B1 (en) | 1977-04-08 |
| US3905188A (en) | 1975-09-16 |
| DE2425253A1 (en) | 1974-12-12 |
| JPS5010168A (en) | 1975-02-01 |
| DE2425253B2 (en) | 1978-06-08 |
| FR2231043A1 (en) | 1974-12-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |