DK175935B1 - Handsfree kit for mobile telephone, includes sub-circuit that prioritizes information transferred to loudspeaker of car radio, such that radio data system signal containing call from mobile telephone always has highest priority - Google Patents
Handsfree kit for mobile telephone, includes sub-circuit that prioritizes information transferred to loudspeaker of car radio, such that radio data system signal containing call from mobile telephone always has highest priority Download PDFInfo
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- DK175935B1 DK175935B1 DK200301387A DKPA200301387A DK175935B1 DK 175935 B1 DK175935 B1 DK 175935B1 DK 200301387 A DK200301387 A DK 200301387A DK PA200301387 A DKPA200301387 A DK PA200301387A DK 175935 B1 DK175935 B1 DK 175935B1
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Abstract
Description
DK 175935 B1DK 175935 B1
Opfindelsen angår et håndfrit sæt til en mobiltelefon, der omfatter et kredsløb, der er koblet mellem mobiltelefonen og en bilradio med højttaler, hvor kredsløbet er indrettet til ved opkald til mobiltelefonen at overføre information fra mobiltelefonen til bilradioens højttaler, uanset om bilradioen er i ak-5 tiv eller passiv tilstand, og hvor kredsløbet omfatter et RDS-genererings-kredsløb, der via et antennestik er tilsluttet en antenneindgang på bilradi oen.The invention relates to a hands-free set for a mobile phone comprising a circuit which is coupled between the mobile phone and a car radio with a loudspeaker, wherein the circuit is arranged to transmit information from the mobile phone to the car radio loudspeaker, regardless of whether the car radio is in the car radio. 5 or passive mode, and wherein the circuit comprises an RDS generation circuit connected via an antenna connector to an antenna input on the car radio.
Med ønsket om at nedbringe risikoen for ulykker, der skyldes uopmærk-10 somhed, fordi mobiltelefonbrugere anvender deres mobiltelefon ved opkald og besvarelse af opkald med hænderne, medens de kører i bil, tilbydes der i dag de såkaldte håndfri telefonsæt, hvor brugerne kan lade mobiltelefonen sidde i en telefonholder og alligevel føre en samtale, idet mobiltelefonen tilkobles en bilradios højttaler.With the desire to reduce the risk of accidents due to inattention, because mobile phone users use their mobile phones when making calls and answering calls with their hands while driving a car, today the so-called hands-free phone sets are offered where users can charge the mobile phone sit in a phone holder and still have a conversation as the mobile phone connects to a car radio speaker.
1515
Yderligere kan en mikrofon, der er forbundet til mobiltelefonen, være placeret i nærheden af brugerens hoved, f.eks. i bilens loft.Further, a microphone connected to the mobile phone may be located near the user's head, e.g. in the car ceiling.
Disse systemer skal for det meste efterinstalleres og er desuden ganske 20 kompliceret opbygget og ikke særligt fleksible, da f.eks. en udskiftning af en mobiltelefon til en anden model eller mærke kan betyde, at hele det håndfri sæt skal skiftes.These systems mostly need to be re-installed and are also quite 20 complicated in structure and not very flexible, as e.g. Replacing a mobile phone with another model or brand may mean that the entire handsfree kit needs to be changed.
Det er derfor forsøgt at lave mere fleksible og enkle håndfri sæt, men med 25 samme komfort som de komplicerede sæt. Et eksempel på et sådant mindre kompliceret og fleksibelt håndfrit sæt kendes eksempelvis fra beskrivelsen til den offentliggjorte EP-patentansøgning nr. 920 170 A2, hvor en mobiltelefon anvender RDS-signaler til at føre opkald til mobiltelefonen videre til mobilradioen.It has therefore been attempted to make more flexible and simple hands-free sets, but with 25 the same comfort as the complicated sets. An example of such a less complicated and flexible hands-free set is known, for example, from the description of published European Patent Application No. 920 170 A2, where a mobile phone uses RDS signals to forward calls to the mobile phone to the mobile radio.
Ovennævnte systemer fungerer således, at så snart der sker opkald til mo- 30 DK 175935 B1 2 biltelefonen, vil bilradioen og eventuelt dens ekstra enheder, såsom kassetteafspiller eller CD, blive afbrudt. Ligeledes vil et opkald kunne modtages, selv om bilradioen og dens ekstra enheder er afbrudt.The above systems work so that as soon as calls are made to the mobile phone, the car radio and possibly its additional devices, such as cassette player or CD, will be disconnected. Also, a call may be received even if the car radio and its additional devices are disconnected.
5 Fordelen ved et sådant håndfrit sæt er, at mobiltelefonen kan betjenes, medens den sidder i holderen, og yderligere at opkald til eller fra mobiltelefonen har prioritet i forhold til mobilradioens modtagelse af radiosignaler.5 The advantage of such a hands-free set is that the mobile phone can be operated while in the holder, and further that calls to or from the mobile phone have priority over the reception of radio signals by the mobile radio.
Der sker således en prioritering af opkald til eller fra mobiltelefonen, hvilket 10 netop er ønskeligt i forbindelse med anvendelse af mobiltelefoner i biler.Thus, priority is given to calls to or from the mobile phone, which is precisely desirable in connection with the use of mobile phones in cars.
Det fremgår ikke af ovennævnte EP-publikation, hvad der sker, hvis der under modtagelse af et RDS-signal, der kommer som en trafikmelding, opkaldes til mobiltelefonen. Vil trafikmeldingen blive afbrudt, eller vil opkaldet 15 blive afvist?It does not appear from the above EP publication what happens if, during the reception of an RDS signal which comes as a traffic message, calls to the mobile phone. Will the traffic announcement be interrupted or will call 15 be rejected?
Det er på denne baggrund et formål med opfindelsen at tilvejebringe et håndfrit sæt, hvor der ikke kan opstå konflikt mellem RDS-signaler, der hidrører fra trafikmeldinger, og RDS-signaler, der hidrører fra mobiltelefonop-20 kald.Accordingly, it is an object of the invention to provide a hands-free set in which no RDS signals arising from traffic messages and RDS signals arising from cellular telephone calls can arise.
Opfindelsens formål tilgodeses ved et håndfrit sæt af den i indledningen til krav 1 angivne type, som er karakteristisk ved, at der i RDS-genererings-kredsløbet er anordnet et prioriteringskredsløb, således at informationer, 25 der overføres til bilradioens højttaler, er prioriteret således, at et RDS-signal, der indeholder et opkald til mobiltelefonen, altid har 1. prioritet.The object of the invention is met by a hands-free set of the type specified in the preamble of claim 1, which is characterized in that a priority circuit is arranged in the RDS-generating circuit, so that information transmitted to the car radio loudspeaker is prioritized thus: that an RDS signal containing a call to the mobile phone always has 1st priority.
På denne måde sikres, at mobiltelefonen altid får 1. prioritet, hvilket for nogle personer er meget vigtigt.In this way, the mobile phone is always given the first priority, which is very important for some people.
Med andre ord vil konflikter mellem typerne af signaler, der overføres til 30 3 DK 175935 B1 mobilradioen, undgås, hvilket sikrer, at en bruger ikke søger at besvare et opkald ved at fjerne sin mobiltelefon fra dens telefonholder.In other words, conflicts between the types of signals transmitted to the mobile radio will be avoided, ensuring that a user does not seek to answer a call by removing his or her mobile phone from its telephone holder.
Til sikring af denne prioritering er det en fordel, hvis, som angivet i krav 2, 5 RDS-genereringskredsløbet har en antenneindgang for tilslutning af en ekstern antenne, hvorved RDS-signaler, der vedrører trafikmeldinger eller lignende kan opfanges i RDS-genereringskredsløbet og videreprioriteres der.To secure this priority, it is advantageous if, as set out in claim 2, the RDS generating circuit has an antenna input for connecting an external antenna, whereby RDS signals relating to traffic announcements or the like can be intercepted in the RDS generating circuit and further prioritized there.
10 Hensigtsmæssigt, som angivet i krav 3, har kredsløbet yderligere et styrekredsløb, der via en indgang er tilkoblet en omskifter for omskiftning af mobiltelefonens opkald mellem bilradioen og et hovedsæt, hvorved der opnås den fordel, at samtaler af privat karakter hurtigt kan omskiftes fra bilradioens højttaler til hovedsættet.Conveniently, as claimed in claim 3, the circuit further comprises a control circuit which is connected via an input to a switch for switching the mobile phone's call between the car radio and a headset, thereby obtaining the advantage that private-nature calls can be quickly switched from the car radio. speaker for the headset.
1515
Ved, som angivet i krav 4, at hovedsættet er forbundet til kredsløbet via en kortrækkende kommunikationsforbindelse, såsom Bluetooth, opnås den fordel, at mobiltelefoner, der ikke i forvejen er beregnet til at benytte hovedsæt med Bluetooth-teknologi, nu kan anvendes med Bluetooth-teknologi.As stated in claim 4, that the headset is connected to the circuit via a short-range communication connection, such as Bluetooth, the advantage is obtained that mobile phones not previously intended to use headsets with Bluetooth technology can now be used with Bluetooth wireless technology. technology.
2020
Med henblik på nem opkobling af et håndfrit sæt ifølge opfindelsen til enhver given mobiltelefon, uanset model eller mærke, er det en fordel, hvis, som angivet i krav 5, kredsløbet indeholder et interfacekredsløb, der er forbundet til mobiltelefonen gennem en mobiltelefonholder.For easy connection of a hands-free kit according to the invention to any given mobile phone, regardless of model or brand, it is an advantage if, as stated in claim 5, the circuit contains an interface circuit connected to the mobile phone through a mobile telephone holder.
2525
Denne nemme opkobling sikres yderligere, hvis, som angivet i krav 6, in-terfacekredsløbet er forbundet til mobiltelefonholderen via en kortrækkende kommunikationsforbindelse, såsom af typen Bluetooth.This easy connection is further ensured if, as stated in claim 6, the interface circuit is connected to the mobile telephone holder via a short-range communication connection such as the Bluetooth type.
30 Opfindelsen skal herefter nærmere forklares under henvisning til tegningen, på hvilken DK 175935 B1 4 fig. 1 viser den principielle opbygning af et håndfrit sæt ifølge opfindelsen, medens fig. 2 viser, hvorledes prioriteringen af opkald til mobiltelefonen 5 tilvejebringes.The invention will now be explained in more detail with reference to the drawing, in which DK 175935 B1 4 fig. 1 shows the basic structure of a hands-free kit according to the invention, while FIG. 2 shows how the prioritization of calls to the mobile phone 5 is provided.
Som det ses på figur 1, er denne opdelt i tre afsnit, der hver er betegnet med I, II og III.As seen in Figure 1, this one is divided into three sections, each denoted by I, II and III.
10 Det første afsnit indeholder en mobiltelefon 1, der kan anbringes i en telefonholder 2. Det andet afsnit indeholder et elektrisk kredsløb 7, hvortil der, som det forklares senere, er tilsluttet flere enheder, medens det sidste afsnit indeholder en bilradio 23, der bl.a. er tilsluttet det elektriske kredsløb 7.10 The first section contains a mobile phone 1 which can be placed in a telephone holder 2. The second section contains an electrical circuit 7, to which, as will be explained later, several devices are connected, while the last section contains a car radio 23 which includes .a. is connected to the electrical circuit 7.
15 Mobiltelefonen 1 kan indsættes i telefon holderen 2, der i øvrigt kan fastgøres i en ikke-vist bil ved hjælp af et beslag 3.The mobile phone 1 can be inserted into the telephone holder 2, which can also be attached to a car not shown by means of a bracket 3.
Til holderen 2 kan der, men ikke nødvendigvis, være tilsluttet en ekstern mikrofon 4, som sikrer en optimal lydgengivelse, når mobiltelefonen 1 er 20 placeret i holderen 2.An external microphone 4 may be connected to the holder 2, but not necessarily, which ensures an optimal sound reproduction when the mobile phone 1 is located in the holder 2.
Som det ses i afsnit II, består det elektriske kredsløb af fire delkredsløb, der er betegnet 11,12,13 og 14.As seen in Section II, the electrical circuit consists of four subcircuits, designated 11,12,13 and 14.
25 Til delkredsløbet 11 er der tilsluttet en switch 8, medens der til delkredsløbet 12 er udformet en stikforbindelse 6, til hvilken et stik 5 med en ledning, der har forbindelse til telefonholderens stik 25, kan tilsluttes. Ledning og stik kan i øvrigt fordelagtigt erstattes af en kortrækkende kommunikationsforbindelse, såsom af typen Bluetooth.25 A switch 8 is connected to the subcircuit 11, while a subconnection 6 is connected to the subcircuit 12, to which a plug 5 with a cable connected to the telephone holder socket 25 can be connected. Furthermore, the cord and plugs can advantageously be replaced by a short-range communication connection, such as the Bluetooth type.
Til delkredsløbet 12 er mobiltelefonen 1 via et elektrisk stik 24 forbundet til 30 DK 175935 B1 5 et elektrisk stik 25 i telefonholderen 2, således at kommunikationssignaler kan overføres til behandling i kredsløbet 7, som det forklares nedenfor.To the sub-circuit 12, the mobile telephone 1 is connected via an electrical connector 24 to an electrical connector 25 in the telephone holder 2, so that communication signals can be transmitted for processing in the circuit 7, as explained below.
Ligeledes er det muligt at oplade mobiltelefonens batteri ved hjælp af bilens 5 batteri, der har en ikke-vist ledningsforbindelse til holderen 2.Also, it is possible to charge the cell phone's battery using the car's battery 5, which has a non-wired connection to the holder 2.
Endelig er der til delkredsløbet 12 tilsluttet en mikrofon 10, som kan være anbragt i nærheden af føreren i en bil.Finally, a sub-microphone 10 is connected to the sub-circuit 12, which may be located near the driver of a car.
10 Til delkredsløbet 13 er der ved hjælp af stikkene 15 og 16 fra en udgang på delkredsløbet 13 etableret en forbindelse til en antenneindgang på den viste bilradio 23 i område III.10 To the sub-circuit 13, a connection to an antenna input on the shown car radio 23 in area III is established by means of the connectors 15 and 16 from an output of the sub-circuit 13.
Yderligere er der i område III vist en ekstern antenne 22, som kan være en 15 antenne monteret på en bil eller i et vindue, normalt et bagvindue. Denne antenne er via stik og ledninger 17,18,19,20 og 21 koblet til en antenneindgang på delkredsløbet 13.Further, in area III there is shown an external antenna 22, which may be an antenna mounted on a car or in a window, usually a rear window. This antenna is connected to an antenna input on the sub-circuit 13 via connectors and wires 17, 18, 19, 20 and 21.
Endelig udfører delkredsløbet 13 en automatisk omskiftningsfunktion, såle-20 des at bilradioen eller dens tilsluttede enheder, såsom CD eller bånd, afbrydes, når der modtages et opkald.Finally, the sub-circuit 13 performs an automatic switching function such that the car radio or its connected devices, such as CD or tape, are disconnected when a call is received.
Herefter skal det forklares, hvorledes den viste opstilling fungerer, idet det antages, at der i opstillingen kan forekomme tre typer af signaloverførsel til 25 bilradioens højttalere, nemlig - almindelig radiomodtagelse eller afspilning af CD eller bånd, - RDS-signal indeholdende trafikmeldinger eller advarsler, - telefonopkald, som er indhyllet i et RDS-signal.Next, it will be explained how the arrangement shown works, assuming that the set up can have three types of signal transmission to the 25 car radio speakers, namely - regular radio reception or CD or tape playback, - RDS signal containing traffic announcements or warnings, - telephone calls wrapped in an RDS signal.
Kredsløbet er opbygget på den måde, at delkredsløbet 13 prioriterer de tre 30 DK 175935 B1 6 typer signaler således, at et opkald til mobiltelefonen altid vil få 1. prioritet over de andre signaler, medens radiosignaler eller signaler fra CD og bånd altid vil få 2. prioritet, naturligvis under forudsætning af, at en bruger ikke har indstillet prioriteringen til at være anderledes. Eksempelvis er det ikke 5 usædvanligt, at brugeren afbryder for trafikmeldinger, hvis han kører i et land, hvor han intet forstår af sproget.The circuit is designed in such a way that the subcircuit 13 gives priority to the three types of signals, so that a call to the mobile phone will always have the first priority over the other signals, while radio signals or signals from CD and tape will always receive 2 priority, of course, assuming that a user has not set the priority to be different. For example, it is not unusual for the user to interrupt traffic alerts if he is driving in a country where he does not understand the language.
Fleksibiliteten af opstillingen ifølge opfindelsen har også den fordel, at føreren, uden at fjerne mobiltelefonen 1 fra holderen 2, kan føre en privat sam-10 tale, idet han blot skal påvirke switchen 8, hvorefter opkald overføres til hovedsættet, der er opkoblet med Bluetooth-modulet.The flexibility of the arrangement according to the invention also has the advantage that the driver, without removing the mobile phone 1 from the holder 2, can conduct a private conversation, simply having to influence the switch 8, after which calls are transferred to the headset connected with Bluetooth module.
I en yderlige hensigtsmæssig udførelse kan hovedsættet også anvendes til at aflytte bilradioen eller en CD eller et bånd, således at medpassagerer 15 slipper for at lytte med, hvilket kan være en fordel ved kørsel over lange afstande om natten, og især hvis der er børn i bilen.In a further convenient embodiment, the headset can also be used to listen to the car radio or a CD or tape, so that fellow passengers 15 do not have to listen, which can be an advantage when driving over long distances at night, and especially if there are children in the car. the car.
Ovenfor er nævnt nogle vigtige funktionaliteter af opstillingen, men der er naturligvis mulighed for at tilpasse opstillingen til andre ønsker.The above mentioned are some important functionalities of the arrangement, but there is of course the possibility to adapt the arrangement to other wishes.
2020
Til delkredsløbet 14 er der tilsluttet et hovedsæt 9, fortrinsvis ved hjælp af en kortrækkende kommunikationsforbindelse af typen Bluetooth.To the sub-circuit 14, a headset 9 is connected, preferably by means of a short-range Bluetooth connection.
Herefter forklares delkredsløbenes 11,12,13 og 14 funktioner.Next, the functions of the sub-circuits 11,12,13 and 14 are explained.
2525
Delkredsløbet 11 er et styrekredsløb, som gør det muligt at omskifte opkald fra bilradioen 23 til hovedsættet 9, idet brugeren blot ved et tryk på switchen 8 kan foretage denne omskiftning. På denne måde kan brugeren hurtigt skifte en samtale fra at være ’’tilgængelig” for passagerer i bilen til at 30 være af mere privat karakter.The subcircuit 11 is a control circuit which enables calls to be switched from the car radio 23 to the headset 9, the user being able to do this switching only at the push of a switch 8. In this way, the user can quickly switch a conversation from being '' accessible '' to passengers in the car to 30 being more private.
7 DK 175935 B17 DK 175935 B1
Delkredsløbet 14 er et Bluetooth-radiomodul, som tilvejebringer den trådløse forbindelse til hovedsættet 9.The subcircuit 14 is a Bluetooth radio module which provides the wireless connection to the headset 9.
Delkredsløbet 12 er et interfacekredsløb, som gør det muligt at tilpasse alle 5 de andre delkredsløb 11,13 og 14 til forskellige mobiltelefoner, uanset type eller fabrikat. Til delkredsløbet 12 kan der yderligere være tilvejebragt en tilslutning til en bils batteri for strømforsyning af hele kredsløbet 7 samt opladning af mobiltelefonen 1.The subcircuit 12 is an interface circuit which allows all 5 of the other subcircuits 11,13 and 14 to be adapted to different mobile phones, regardless of type or make. To the sub-circuit 12, a connection may also be provided to a car's battery for power supply of the entire circuit 7 as well as charging of the mobile telephone 1.
10 På fig. 2 genfindes stikforbindelsen 6, antennen 22 og bilradioen 23. Som det ses på figuren, er stikforbindelsen 6 koblet til en FM-modulator/blander 26 og til en opkaldsdetektor. Fra en udgang på opkaldsdetektoren 27 ledes et signal til en RDS-generator 31, der genererer et RDS-signal, som blandes med FM-signalet i FM-modulatoren/blanderen 26. Yderligere ledes et 15 signal fra en udgang på opkaldsdetektoren til et relæ 28, der er indrettet til at omskifte signalerne til bilradioen mellem FM-modulatoren/blanderen 26 og antennen 22, og således, at når der optræder et signal på udgangen af FM-modulatoren/blanderen 26, så vil antennen 22 blive ført til jord.10 In FIG. 2, the connector 6, the antenna 22 and the car radio 23 are found. As can be seen in the figure, the connector 6 is connected to an FM modulator / mixer 26 and to a call detector. From an output of the call detector 27, a signal is applied to an RDS generator 31 which generates an RDS signal which is mixed with the FM signal in the FM modulator / mixer 26. In addition, a signal is output from an output of the call detector to a relay. 28, which is arranged to switch the signals to the car radio between the FM modulator / mixer 26 and the antenna 22, and so that when a signal appears on the output of the FM modulator / mixer 26, the antenna 22 will be grounded.
20 Relæet 28 virker på følgende måde:The relay 28 operates as follows:
For nemheds skyld er relæets terminaler betegnet med s, t, u, v, x og y. Når bilradioen aflyttes, er der forbindelse mellem terminalerne s og t og mellem u og x. Når der føres en samtale gennem mobiltelefonen, er terminalerne s 25 og y og terminalerne v og x forbundet.For convenience, the relay terminals are denoted by s, t, u, v, x and y. When the car radio is eavesdropped, there is a connection between terminals s and t and between u and x. When a conversation is conducted through the mobile phone, terminals s 25 and y and terminals v and x are connected.
Herefter skal det forklares, hvorledes prioriteringen af opkald til mobiltelefonen tilvejebringes.Next, it must be explained how the prioritization of calls to the mobile phone is provided.
30 Når der kommer et opkald til mobiltelefonen, overføres audiosignalet til stikforbindelsen 6 og føres videre til FM-modulatoren/blanderen 26, hvor DK 175935 B1 8 audiosignalet bliver konverteret til et FM-signal. Opkaldsdetektoren 27 genererer et styresignal til relæet 28, som skifter, således at antennen 22 bliver forbundet til jord, samtidig med at signalet fra FM-modulato-ren/btanderen 26, der er blandet med et RDS-signal, overføres til bilradioen 5 23. Når samtalen er slut, forsvinder signalet fra opkaldsdetektoren 27, hvil ket bevirker, at relæet 28 nu forbinder antennen 22 med bilradioen 23, som ovenfor forklaret.When a call is made to the mobile phone, the audio signal is transmitted to the connector 6 and passed on to the FM modulator / mixer 26, where the audio signal is converted to an FM signal. The call detector 27 generates a control signal for the relay 28 which switches so that the antenna 22 is connected to ground while transmitting the signal from the FM modulator / transmitter 26 mixed with an RDS signal to the car radio 5 23. When the call is over, the signal from the call detector 27 disappears, which causes the relay 28 to now connect the antenna 22 to the car radio 23, as explained above.
10 |10 |
Claims (6)
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200301387A DK175935B1 (en) | 2003-09-24 | 2003-09-24 | Handsfree kit for mobile telephone, includes sub-circuit that prioritizes information transferred to loudspeaker of car radio, such that radio data system signal containing call from mobile telephone always has highest priority |
| US10/572,774 US20070197263A1 (en) | 2003-09-24 | 2004-09-21 | Handsfree Kit For A Mobile Telephone |
| KR1020067005145A KR20060123722A (en) | 2003-09-24 | 2004-09-21 | Handsfree Kit for Cell Phones |
| AT04762860T ATE421832T1 (en) | 2003-09-24 | 2004-09-21 | HANDSFREE KIT FOR A MOBILE PHONE |
| EP04762860A EP1668875B1 (en) | 2003-09-24 | 2004-09-21 | A handsfree kit for a mobile telephone |
| CNA2004800273376A CN1856984A (en) | 2003-09-24 | 2004-09-21 | A handsfree kit for a mobile telephone |
| PCT/DK2004/000640 WO2005029826A1 (en) | 2003-09-24 | 2004-09-21 | A handsfree kit for a mobile telephone |
| DE602004019234T DE602004019234D1 (en) | 2003-09-24 | 2004-09-21 | HANDSFREE KIT FOR A MOBILE PHONE |
| JP2006527279A JP2007507135A (en) | 2003-09-24 | 2004-09-21 | Hands-free kit for mobile phones |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DK200301387 | 2003-09-24 | ||
| DK200301387A DK175935B1 (en) | 2003-09-24 | 2003-09-24 | Handsfree kit for mobile telephone, includes sub-circuit that prioritizes information transferred to loudspeaker of car radio, such that radio data system signal containing call from mobile telephone always has highest priority |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DK200301387A DK200301387A (en) | 2005-03-25 |
| DK175935B1 true DK175935B1 (en) | 2005-07-18 |
Family
ID=34717091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK200301387A DK175935B1 (en) | 2003-09-24 | 2003-09-24 | Handsfree kit for mobile telephone, includes sub-circuit that prioritizes information transferred to loudspeaker of car radio, such that radio data system signal containing call from mobile telephone always has highest priority |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN1856984A (en) |
| DK (1) | DK175935B1 (en) |
-
2003
- 2003-09-24 DK DK200301387A patent/DK175935B1/en not_active IP Right Cessation
-
2004
- 2004-09-21 CN CNA2004800273376A patent/CN1856984A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN1856984A (en) | 2006-11-01 |
| DK200301387A (en) | 2005-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |
Effective date: 20140930 |