CN1238479A - Multi-channel radio-controlled clock - Google Patents
Multi-channel radio-controlled clock Download PDFInfo
- Publication number
- CN1238479A CN1238479A CN 99103490 CN99103490A CN1238479A CN 1238479 A CN1238479 A CN 1238479A CN 99103490 CN99103490 CN 99103490 CN 99103490 A CN99103490 A CN 99103490A CN 1238479 A CN1238479 A CN 1238479A
- Authority
- CN
- China
- Prior art keywords
- radio
- controlled clock
- circuit
- antenna
- fet
- 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.)
- Granted
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Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04G—ELECTRONIC TIME-PIECES
- G04G21/00—Input or output devices integrated in time-pieces
- G04G21/04—Input or output devices integrated in time-pieces using radio waves
-
- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/08—Setting the time according to the time information carried or implied by the radio signal the radio signal being broadcast from a long-wave call sign, e.g. DCF77, JJY40, JJY60, MSF60 or WWVB
- G04R20/10—Tuning or receiving; Circuits therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Electric Clocks (AREA)
- Transceivers (AREA)
Abstract
The radio clock allows reception of time signals from different time signal transmitters having different transmission frequencies using an antenna (12) coupled to an antenna resonant circuit (10) with capacitors (14,16) coupled in series or parallel via a switch (18), provided by a blocking layer FET, a MOSFET, or a bistable circuit.
Description
The present invention relates to a kind of radio-controlled clock as described in the preamble as claimed in claim 1.
This radio-controlled clock or the circuit arrangement that is used for tunable resonance circuit are existing open at German patent DE 4332798A1, and this resonant circuit has many capacitors that switch on or off respectively by the switch of electronic switch set.In this known circuit arrangement, utilize clapp oscillator, vibrate in equilibrium phase site resonant circuit with its resonance frequency.Compare with the oscillation frequency of resonant circuit and by resonance frequency predetermined reference value at equilibrium phase site frequency comparator, if the frequency difference, the position that changes above-mentioned switch is up to both frequency unanimities.When detecting device detects both frequencies unanimities, cut off clapp oscillator and the residing position of storage switch.
Microcontroller can be automatically one need user's intervention one to be transferred to the frequency that the receiver at separately geographical reception area can receive.
For example, a kind of radio-controlled clock that has antenna resonance circuit is disclosed in US-A 5331608.
The purpose of this invention is to provide a kind of start as instructions as described in a kind of radio-controlled clock of type, this has the radio-controlled clock of simple mechanism, except can discerning, can also discern one or more transmitters (as MSF and WWVB) that have automatic self-equilibrating coded message to a kind of time response transmitter with a given transmitter frequency.
Goal of the invention of the present invention is to be achieved through the following technical solutions: a kind of radio-controlled clock, this radio-controlled clock is suitable for receiving the different transmission frequencies from different time response transmitters, and has a capacitor of comprising (14,16) and an antenna resonance circuit (10) of an antenna (12), this capacitor (14 wherein, 16) in parallel with a switch (18) or be cascaded, it is characterized in that in the DCF type receiver (10) that is in parallel with one or more quartz bodies, the another one quartz body being arranged, thereby various other transmission frequencies are formed a filter transmission band scope.Optimum embodiment according to radio-controlled clock of the present invention has the described feature of additional claim.
The quartz body that produces various required frequencies in receiver is in parallel usually, so that provide free transmission range or bandpass width for the wave filter with an above frequency range.Set up receive frequency by the switching antenna.This has following advantage: only require a receiver and do not need quartz body is transferred to disturbing on the utmost point sensitive spot at receiver when circuit is in high impedance.
For according to radio-controlled clock of the present invention, can be in antenna resonance circuit by the switching of adjusting frequency of suitable switching electric capacity.In this case, can realize by the parallel circuit or the series circuit of capacitor.Switch can be a FET knot, a MOS-FET or a gating circuit.Switch can also be a relay, especially a miniature reed relay.By means of this miniature reed relay, electricity isolation (when considering undesired signal) can implemented between the antenna circuit of controller and radio-controlled clock.
If switch is a FET knot, a MOS-FET, or the form of a gating circuit, by means of voltage translator circuit, generation can drive the canopy source voltage of FET fully so that make the ON resistance step-down.The in fact short circuit of the input end of antenna that is to say, is transferred to another the operating process from a transmitter frequency at switch, and reception is blocked, so that the concussion of the transition aspect resonant circuit is advantageously stoped.Thereby, utilize said resistance in series to determine a transient response or a response that limits.
More preferably, the voltage translator circuit according to radio-controlled clock of the present invention has a bipolar transistor that also can cut off FET.Therefore second capacitor has the canopy source capacitance of FET.Diode can be schottky diode in voltage translator circuit.Very advantageously design a kind of integrated voltage converter circuit and it is contained in according in the radio-controlled clock of the present invention.Voltage translator circuit can comprise one or more parts.
For foundation radio-controlled clock of the present invention, preferably, the switching of antenna can realize by the drain circuit of opening of μ C magnitude.
According in the radio-controlled clock of the present invention,, more preferably utilize a bistable state reed relay that is suitable for the low driver electric current in the control winding if switch is a relay or a miniature reed relay.
By below in conjunction with the description of circuit diagram, can be well understood to other minutia of the present invention and advantage more to the essential part of radio-controlled clock of the present invention.In these accompanying drawings:
Accompanying drawing 1 is depicted as first kind of circuit structure of the antenna resonance circuit that has series capacitor,
Accompanying drawing 2 be depicted as the antenna resonance circuit that has shnt capacitor second kind of circuit structure and
Accompanying drawing 3 is depicted as and accompanying drawing 2 a kind of circuit structures similar and that have voltage converter circuit.
Accompanying drawing 1 is depicted as one and is used for radio-controlled clock or table, in particular for the schematic block circuit diagram of the antenna resonance circuit 10 of radio control wrist-watch, has an antenna 12 and two capacitors that are cascaded 14 and 16.Capacitor 16 and a switch 18 link together.Capacitor 16 is by switch 18 or be switched into circuit, or short circuit.
When producing interference or noise signal, the resonance frequency of converting antenna resonant circuit 10 can change tuning, so that the resonance frequency of antenna resonance circuit 10 is in the frequency range away from the selection frequency of receiver, perhaps between two resonance frequencies, that is to say between two different transmitter frequencies, for example 77.5 and 60Hz between can change at any time.
Accompanying drawing 2 is the circuit diagram similar to accompanying drawing 1, be depicted as second kind of structure with an antenna 12 and capacitor 14 and 16 antenna resonance circuits 10, wherein two capacitors 14 and 16 mutually and connect, switch 18 links to each other with capacitor 16 branch roads of parallel connection, promptly connects with capacitor 16.The receiver of also representing radio-controlled clock in accompanying drawing 2 with reference to label 20 is in the drawings with a box indicating.
Accompanying drawing 3 is the circuit diagram similar to accompanying drawing 2, is depicted as two capacitors parallel with one another 14 and 16, and the antenna resonance circuit 10 that connects together with receiver 20 by a box indicating.Switch 18 with capacitor 16 series connection here is a FET 22 who links to each other with voltage translator circuit 24.This voltage translator circuit 24 comprises a bipolar transistor 26, diode 28 and a capacitor 30.A capacitor 32 is optional.This diode 28 can be schottky diode.
For example, FET22 can be P channel-type FET.Link the grid of FET such as PNP transistor 26.
Second capacitor 16 or first or main capacitor 14 can adopt the form by known capacitor bank.Antenna 12 is preferably the antenna of a symmetry, and passes through the switching of switch 18, and the antenna capacitor 14 of this antenna can change.
Concerning various transmitter frequencies, the present invention has does not need to utilize the antenna of respective amount to be transferred to the advantage of transmitter frequency separately, so does not influence each other in antenna part according to the present invention.
By means of voltage translator circuit 24, this structure produces can drive the gate-source voltage of EFT 22 fully so that make the ON resistance step-down.This just means, in the process of switching, receives the transient response or the response that have been blocked and have therefore prevented the transition concussion or set up qualification.
With reference to label list
10 antenna resonance circuits
12 antennas
14 capacitors
16 capacitors
18 switches (being used for 16)
22FET (field effect transistor)
24 voltage translator circuits
26 bipolar transistors
28 diodes
30 capacitors
32 capacitors
Claims (8)
1, a kind of radio-controlled clock, this radio-controlled clock is suitable for receiving the different transmission frequencies from different time response transmitters, and has a capacitor of comprising (14,16) and an antenna resonance circuit (10) of an antenna (12), this capacitor (14 wherein, 16) in parallel with a switch (18) or be cascaded, it is characterized in that comprising another quartz body, so that various other each transmission frequency are formed a filter transmission band scope in DCF type receiver (10) lining in parallel with one or more quartz bodies.
2,, it is characterized in that this switch (18) comprises FET knot or MOS-FET or gating circuit or is made of a relay according to the said radio-controlled clock of claim 1.
3,, it is characterized in that this voltage translator circuit (24) produces the gate-source voltage that can drive FET (22) fully according to the said radio-controlled clock of claim 2.
4,, it is characterized in that this voltage translator circuit (24) has a bipolar transistor (26) to cut off FET (22) according to the said radio-controlled clock of claim 3.
5,, it is characterized in that this voltage translator circuit (24) is an integrated circuit according to claim 3 or 4 said radio-controlled clocks.
6,, it is characterized in that this relay is a reed relay according to the said radio-controlled clock of claim 2.
7,, it is characterized in that this reed relay is bistable according to the said radio-controlled clock of claim 6.
8,, it is characterized in that the antenna (12) of this antenna resonance circuit (10) has symmetry according to the said radio-controlled clock of one of them claim of claim 1 to 7.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998108431 DE19808431A1 (en) | 1998-03-02 | 1998-03-02 | Multi-channel radio clock for use in different geographical locations |
| DE19808431.5 | 1998-03-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1238479A true CN1238479A (en) | 1999-12-15 |
| CN1122895C CN1122895C (en) | 2003-10-01 |
Family
ID=7859182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99103490 Expired - Fee Related CN1122895C (en) | 1998-03-02 | 1999-03-02 | Multi-channel radio-controlled clock |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP3889176B2 (en) |
| CN (1) | CN1122895C (en) |
| CH (1) | CH694064A5 (en) |
| DE (1) | DE19808431A1 (en) |
| HK (1) | HK1024309A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4785259B2 (en) * | 2001-03-09 | 2011-10-05 | セイコークロック株式会社 | Time information receiver and radio-controlled clock |
| DE10334990B4 (en) | 2003-07-31 | 2016-03-17 | Atmel Corp. | Radio Clock |
| DE10357201A1 (en) * | 2003-12-08 | 2005-07-07 | Atmel Germany Gmbh | Radio Clock |
| US7333467B2 (en) | 2003-12-08 | 2008-02-19 | Atmel Germany Gmbh | Receiver circuit and method using selectively variable amplification for receiving time signals from different transmitters |
| DE102004002776A1 (en) * | 2003-12-08 | 2005-07-07 | Atmel Germany Gmbh | Receiver circuit for radio-controlled clock, has circuit amplifying time signal to produce amplified time signal, and including adjustable amplifier with variable amplification factor that is adjusted depending on signal frequency |
| DE102004004375B4 (en) | 2004-01-29 | 2019-08-08 | Atmel Corp. | Method for obtaining time information and radio clock |
| DE102004004411B4 (en) | 2004-01-29 | 2015-08-20 | Atmel Corp. | Radio clock and method for obtaining time information |
| DE102004018881B4 (en) * | 2004-04-15 | 2006-03-02 | Junghans Uhren Gmbh | Radio-controlled wristwatch with means for decoding signals from time signal transmitters from several time zones |
| DE102005056483B3 (en) | 2005-11-26 | 2007-01-11 | Atmel Germany Gmbh | Time information receiving e.g. for radio clock, involves having characteristic value of temporal duration compared to signal phase of certain signal level of digital signal with desired value |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3641161A1 (en) * | 1986-12-02 | 1988-06-09 | Ulrich Dipl Ing Bellmann | Narrow-band crystal-controlled audion receiver |
| DE4227502C2 (en) * | 1992-08-20 | 1995-11-02 | Smi Syst Microelect Innovat | Receiver for amplitude-sampled time signal signals |
| DE4332798A1 (en) * | 1993-09-27 | 1995-03-30 | Telefunken Microelectron | Circuit arrangement for a tunable resonant circuit |
-
1998
- 1998-03-02 DE DE1998108431 patent/DE19808431A1/en not_active Withdrawn
-
1999
- 1999-03-01 CH CH36899A patent/CH694064A5/en not_active IP Right Cessation
- 1999-03-02 CN CN 99103490 patent/CN1122895C/en not_active Expired - Fee Related
- 1999-03-02 JP JP05362499A patent/JP3889176B2/en not_active Expired - Fee Related
-
2000
- 2000-06-09 HK HK00103484A patent/HK1024309A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11316293A (en) | 1999-11-16 |
| HK1024309A1 (en) | 2000-10-05 |
| CH694064A5 (en) | 2004-06-30 |
| DE19808431A1 (en) | 1999-09-09 |
| CN1122895C (en) | 2003-10-01 |
| JP3889176B2 (en) | 2007-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170816 Address after: German Schramberg Patentee after: UHRENFABRIK JUNGHANS GMBH & CO.KG Address before: German Shilamubao Patentee before: Junghans Uhren Gmbh |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031001 Termination date: 20180302 |