DE1773406A1 - Automatic and continuous time setting device of a clock - Google Patents

Description

Installation production for World heritage received

Patent attorney IfJ Dp .. | ng. RBet * S _6. * J.Mfito, .Jvo # J "" ^ PATEK PHILIPPE S.A.

Geneva (Switzerland)

Automatic and continuous time setting device of a clock

The subject matter of the present invention is an automatic and continuous time setting device for a clock, characterized in that it comprises a receiver which is tuned to a transmitter of time signals with second modulation, this transmitter delivering a pulse sequence that has been determined ; a comparator that uses this first pulse train

009885/0915

a second pulse train supplied by the clock's oscillator compare and issue corrections when the interval between the first and second pulse trains exceeding a predetermined level exceeds one of these reports correction device fed by icunps signals, which modifies the sv / oite pulse train to clear the error; and a control device which prohibits any correction if the receiver's reception is incorrect.

The accompanying drawing shows schematically and for example an embodiment of the device according to the invention.

Figure 1 is a block diagram of the same. Figure 2 is a detailed schematic of the control device.

Figure 3 shows the shape of the Uc voltage. The device shown for the automatic, continuous time setting of a clock comprises a receiver 1, which the transmitted by a transmitter with second modulation Intercepts pulses and delivers a first pulse train, which is brought into shape by a "Schmitt trigger" circuit 2 is preceded by an integrator 3, which prevents the untimely triggering of the monostable multivibrator 4, all of these three parts belong to the comparator I.

A fcwide monostable multivibrator 5 of the comparator is duroh a second pulse train with a pre-

ORIGINAL 009885/0915

5 1773A06 * '

quen. "by J. Hr." fed by frequency division in 7 from the rotating device 6 of the clock, quartz, stinnfiabol UBV /. nbj "leads int.

The direct exit Y of the monostable multivibrator ^ is differentiated in 3, then delayed in 9 "ri a few hundredths of a second before it is delivered to a" NAID ¹ 'switch 10 in Λ.

The opposite exit Y eier nonostable Flip circuit 4 is supplied to a "NAND" circuit 11 in D.

The direct exit Z of the second nonostable multivibrator 5 is differentiated in 12, then in C to the ocircuit 11 supplied.

The opposite exit Z of the nonionous stable Flip-flop 5 is supplied to circuit 10 in B.

The through the comparator, that is durci. One or the other of the circuits 10, 11 relief-based correction signals feed on the one hand a follow-up 12 or pre-output display Ik and on the other hand the correction device II.

This correction device II is supported by a one hand directly by the signal from the oscillator 1 KHz ': ■ formed or from the previous frequency division on the other hand by the error signal of the delay flip-flop powered H I5. The exit of this bistable multivibrator is combined with the high-frequency signal of the oscillator 6 by an "AND" circuit.

009885/0915.

BATH ORIGINAL

The outlet of this "UIiD" circuit 16 feeds one of the entries of an "OR" circuit 17, dcscen Another entry is fed by the error signal of the previous output A, while its exit is the entry of the frequency divider 7 feeds.

The time setting device also includes a control device III which prohibits improper correction, for example if the signals supplied by the receiver 1 are unsatisfactory.

This control device is shown in Figure 2 in detail, and rests on the control of the duration of the Ir: ^{p: i} .lse as well as the intervals of the signals supplied by the receiver. 1

The signals from the receiver are fed to the base of a transistor 18, which is at the moment of the pulse of 0.1 seconds duration is in the saturation state, which the discharge of the capacitance C through the resistor R2 has the consequence. When the transistor is blocked, the capacitor C charges through the resistor Rl 'again. If we have Rl = ^ - K χ R2 (corresponding to the ratio of the times Signal / pause), a voltage is applied to the terminals of the capacitor, which oscillates slightly around a mean value Have Uc (see Figure J5)

It is obvious that the control circuit can also be designed in such a way that the capacitor is C recharges while the transistor is conductive.

This voltage is generated by a threshold amplifier

009885/0915

BATH ORIGINAL

19 HJ) Or ^- .rächt, whose NmII corresponds to an unbalance swcr ;: in norn.'U.cM M.infniici. Venn the receipt CQr ₃ OUrV. is (parasites, background noises, breakdown of the transmitter, etc.) »controls the amplifier 19 to switch on a signal lamp 20" incorrect reception "and at the same time a Soaunvnr; Us ¹¹ 0 "to the" IJAHD "correction ;; rom circles 10 and 11, whereby the latter are blocked and thus any automatic correction is prevented.

The operation of the device described is as follows:

The impulses coming from the : · λ · λό catcher and the watch are converted into impulses with a duration of 0.5 seconds. Those of the receiver are formed beforehand by a "Schmitt trigger" which has an integration circuit which reduces the risk of the r.onostable multivibrator being read out prematurely.

After branching off, these impulses A and C arrive a "NAHD" circuit, which in normal condition (clock in Operation) is closed by the signals B D (state "θ"), which is from the opposite exit of the other "monostable" flip-flops are coming.

For example, if the clock is slowing down, pulse A will arrive when signal B is "I"; the impulse to control the advance is given with the signaling of the backlog under the condition that the signal X is "I".

BATH

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.!:) - "iignal X". I ^{'?. R} means the class -ualxtät eggs from JHr.rof .ri'; he is ut Gicnalo ^ obtained in ent; e ;; he '".- translated PalIe have the status "0", and the ror.e -..-. I *, al- ■ lamp lights up, polygamy the faulty Sr.ipfan ^ to: -. Ei. y .. In this way, no untimely correction is carried out.

When the clock goes ahead, the curtain is the same. The delay circuit interposed in pulse A. prevented by introducing ■ a threshold continual oscillation of the corrections.

If the watch is checked, the correction impulse comes through the "0!) ER" circuit directly to the support on the 1 KHz count of the frequency division. We thus have a correction of the status of + 0.001 sec / sec.

In case of precedence the clock causes the correct urimpuls the rocking of the flip-flop, whose point N 3um State "θ" passes over. The following impulse of 1 KHs, which arrives at point M, can therefore not pass the "AND" circuit (M.N.). But at the same time this works Impulse the return of the flip-flop, which reaches the point N with a slight delay, which in this case the The passage of the following pulses M is allowed, placed in the "I" state. We thus have an impulse of 1 KPIz at the Count · 1st KHz subtracted. The state is reduced by - 0.001 ^ elc / sec *. be corrected.

The control device is essential when one

009885/0915

BATH ORIGINAL

■ ■ ic 3o.L ': Gt, t;: "i ;; e."]: Uir-.c;' - lr: / cv.v- 'the hour r.iit deru "rösst - ,: ·' ■. 'Lichen I-laas from oic ^ erhcit use wall. ''Aqverürg'; oi "; on Gchutz gegen äas Fehion einer /,.iinsiori; e; -ea: ^; .-clivrache oir; dimensional, Ge ^ s surrounding parasites and "nonaohbarte ntörcnde transmitter (interference) and gestatcet to avoid any ■ Judges ice distribution which perform calibration in poor conditions and in this V / else error mi ι could bring.

The advantages of a watch with a self-locking mechanism, continuous time setting as described are .rolling;

- clac "lack of periodic scheduling, soir.it one State comparisons,

- the oscillator, which is a part of a precise quartz watch an expensive component, it can be replaced by a less accurate and cheaper oscillator (0, uars, diapason, PiC or LC current circuit, etc.), the one with ■ can work with lower frequencies below 1 KHz and with a time setting with an even lower frequency,

- the comfortable and economical achievement of the same. Hour (of the same state) at different geographical Score without a precision watch or a chronographer :.

One modification could be the one described above Correction device II by a device er sets'-be, In response to the correction signal, the frequency of the oscillator in question or the oscillating

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the device C :; ■ '. ■ / <:, wheels allowed to make the desired correction.

BATH ORIGINAL

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Claims (1)

17734OS . ■ "· ■ -; ίο .: .'X! '. 1 : e u-.sl fortJ.'v.ifone'e time setting ^ e ^ Ivorrichturrj a clock, thereby ■ j designates that it sends a to a transmitter V ..U1 I3eitcir; nalen with seconds diodulabion aL ^v : es: .i :: ...: 3en 73mpfän - .: or ur.ifa. "." T, vrobei äiecer transmitter an era.; O ir.O. '' -. "fol ^ a He- '3X ¹ ;;; a comparator, which this first pulse f ··. 'e nit si: -. he svreiten, from the oscillator of the Ulir geliere .. · c. Inpuls- '1-e compares and generates correction signals when the distance between the first and second pulse sequences "e -: - ..: en set * .7ert exceeds; one of doses CORRECTION SIGNALS - powered correction device, Many marriage changes the second pulse train to remove the error; and a control device which erbie et e correction, if the receiver is incorrect. 2. Performing according to patent claim 1, characterized in that the control device (III) comprises a transistor (18), at the base of which the signals coming from the receiver (1) are supplied to ground, a time constant being charged during this The transistor (18) is blocked, and an amplifier (19) with a threshold value, fed by the voltage at the terminals of the time constant C, which delivers a signal as soon as this voltage exceeds a predetermined level. Device according to claim 1, characterized in that BATH ORIGINAL 0098 85/0915 ie. dr.Gii die Koii: ro: ilvf-: rlalit ·. ·:! / · (Ill) a ^r .:? r-.nsiGtor (l8) Ui.! grasps at whose ^ r.ciG Οίο from! impfäri ' -er (l) incoming signals uertien, whereby a Ze! "constant charges, while this transistor (18) lei '" - c /: c ^: \ st, _# and one through the voltage at the terminals of the Zo L- "constant" oepeisten amplifier (19) with a threshold value which delivers a signal as soon as this voltage exceeds ¹ fen -. 4. Device according to claim 2, characterized in that that the comparator (I) comprises two "NAND" circuits, each through the two pulse trains mentioned above corresponding pulse train is fed to a correction signal for YES pursuing, or proceeding to be delivered if these two poles do not coincide in time, and by the fact that these "NAND" circuits still connected to the exit of the control device (III) ^ den, whereby these circuits are blocked when the- ;: e control device (III) supplies a signal. 5. Device according to claim 1, characterized in that the rectifying device (II) changes the frequency of the second pulse train as a function of the reporting signals. 6. Device according to claim 1, thereby gekennseiohnet ,. that the Verichfeigungsvorriohtuns (II), the phase of the second Impulafoigö | Uid »rij _; * ■. ■ '· ■ ;. ■ ..'- ^ ■: ■■ -' ■■■ '■' - ■■ ■ ■ ■■■■■ ■ V ^ ■ · .-. ■ · 009885/091 S Blank page