GB2345403A - Infra-red link for in-car hands-free telephone arrangement - Google Patents
Infra-red link for in-car hands-free telephone arrangement Download PDFInfo
- Publication number
- GB2345403A GB2345403A GB9930740A GB9930740A GB2345403A GB 2345403 A GB2345403 A GB 2345403A GB 9930740 A GB9930740 A GB 9930740A GB 9930740 A GB9930740 A GB 9930740A GB 2345403 A GB2345403 A GB 2345403A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- voice
- infrared light
- mobile telephone
- hands
- 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.)
- Withdrawn
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
- H04M1/6075—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle
- H04M1/6083—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle by interfacing with the vehicle audio system
- H04M1/6091—Portable telephones adapted for handsfree use adapted for handsfree use in a vehicle by interfacing with the vehicle audio system including a wireless interface
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/1143—Bidirectional transmission
Abstract
A mobile telephone handset 30 is placed in a cradle 40 when it is to be used in a hands-free manner. The battery pack 240 of the handset 30 includes a first infra-red transceiver 126, 128 for communication with a second infra-red transceiver 214, 216 included in the cradle 40. The handset and cradle also include charging contacts 230, 260 and means 245, 250 to sense when the handset is on the cradle. When the handset is on the cradle both data and voice signals are modulated onto the infra-red communication link between the handset 30 and the cradle 40. This removes the need for a cable between the handset and the cradle, making for a simpler and less cluttered arrangement.
Description
HANDS-FREE TELEPHONE SYSTEM FOR VEHICLE
The present invention relates generally to a handsfree telephone system, and more particularly, to a handsfree telephone system for a vehicle.
Generally, a hands-free telephone system for a vehicle is designed to enable communication via a microphone and an externally connected speaker without taking the trouble to pick up a mobile telephone while driving the vehicle. Such a hands-fiee telephone system also functions as a battery charger when it is set on a cradle, and offers a driver more convenience.
Figure 1 is an illustrative diagram for explaining an example of the hands-free telephone system for a vehicle.
The hands-free telephone system includes a cradle 12 on which a mobile telephone 10 is cradled, and a hands-free main body 14 for controlling a hands-free function. The hands-free main body 14 is connected to a speaker 18, a power cord 20 supplied with power from the vehicle, and a cord 22 connected to the cradle 12.
The cradle 12 may be disposed at a position inside the vehicle where the user can conveniently cradle the mobile telephone 10, for example, at the position of a vehicle instrument in the vicinity of a driver's seat. The mobile telephone 10 set on the cradle 12 is connected to the cradle 12 via a curl cord 16. The curl cord 16 is detachable from the mobile telephone 10.
The mobile telephone 10 has a connector hole into which a plug of the curl cord 16 is inserted. There is a possibility that contaminants, especially liquid such as water can be introduced into the connector hole. The introduction of liquid like water causes rusting of the connector of the mobile telephone and, for the worse, abrasion of the connector. Further, the user has to take the trouble to insert the plug of the curl cord 16 into the connector hole of the mobile telephone 10 whenever he/she tries to telephone with the hands-free telephone system.
Advantageously, an embodiment of the present invention provides an apparatus for establishing communication between a mobile telephone and a hands-free telephone system without any connection using a curl cord.
Still further embodiments advantageously provide an apparatus for establishing radio communication between a mobile telephone and a cradle of a hands-free telephone system.
Accordingly, a first aspect of the present invention provides a hands-free telephone system for a vehicle, comprising:
a mobile telephone cradle having a first infrared light transceiver in a surface thereof;
a mobile telephone having a second infrared light transceiver for exchanging infrared signals with the first infrared light transceiver when the mobile telephone is set on the cradle, the mobile telephone modulating internally processed voice and data signals, outputting the modulated voice and data signals via the second infrared light transceiver and demodulating the voice and data signal received via the second infrared light transceiver; and
a hands-free main body for modulating the voice, received via an external microphone, and data signals, outputting the modulated voice and data signals to thf first infrared light transceiver of the cradle, demodulating the voice and data signals received via the first light transceiver, and outputting the demodulatec voice and data signals to an external speaker.
An embodiment provides a hands-free telephone systen for a vehicle i. ncluding : a mobile telephone cradle. shaving c first infrared light transceiver in a cradling surface thereof, and a charging terminal pair to be supplied wit ! power from the vehicle; a mobile telephone having a seconc infrared light transceiver at a position to be coincident with the first infrared light transceiver with the mobile telephone set on the cradle, the mobile telephone modulating internally processed voice and data signals, outputting them via the second infrared light transceiver and demodulating the voice and data signals received via the second infrared light transceiver; and a hands-free main body for modulating the voice and data signalé received via an external microphone, outputting the modulated voice and data signals to the first infrarec light transceiver of the cradle, demodulating the voice anc data signals received via the first light transceiver, anc outputting the demodulated voice and data signals to ai external speaker.
Embodiments of the present invention will now be described, by way of example only, with reference to the accompanying drawings in which:
figure 1 illustrates a prior art hands-free telephone system for a vehicle;
figure 2 shows the rear of a mobile telephone, and a cradle of a hands-free telephone system according to an embodiment of the present invention;
figure 3 shows a block diagram of the mobile telephone according to an embodiment of the present invention;
figure 4 is a block diagram of the hands-free telephone system according to an embodiment of the present invention; and
figure 5 is an illustrative diagram showing the structure of a mobile telephone and a cradle, for detecting whether the mobile telephone is set on the cradle, according to an embodiment of the present invention.
According to the embodiment of the present invention, there is provided communication between a mobile telephone 10 and a hands-free telephone system without using the curl cord 16 shown in figure 1.
Referring first to figure 2, a battery 240 attached on the rear of a mobile telephone 30 has an infrared light emitting section 126 and an infrared light receiving section 128. A cradle 40 of the hands-free telephone system also has an infrared light emitting section 214 and an infrared light receiving section 216. When the mobile telephone 30 is set on the cradle 40, the infrared light emitting section 126 of the mobile telephone 30 is matched with the infrared light receiving section 216 of the cradle 40; and the infrared light receiving section 128 of the mobile telephone 30 is matched with the infrared light emitting section 214 of the cradle 40. Thus, a signal transferred from the infrared light emitting section 126 is input to the infrared light receiving section 216 of the cradle 40, and a signal transferred from the infrared light emitting section 214 of the cradle 40 is input to the infrared light receiving section 128 of the mobile telephone 30.
As shown in figure 2, the cradle 40 according to the embodiment of the present invention has a charging terminal pair 230, which is brought in contact with a charging terminal pair 260 of the mobile telephone 30. The cradle 40 also has a protrusion 250 formed thereon. On a battery 240 of the mobile telephone 30 is formed a groove 245 into which the protrusion 250 formed on the cradle 40 is inserted. As illustrated in figure 5, a light-emitting device 270 and a light-receiving device 272 are each provided on opposite sides of the groove 245 of the mobile telephone 30. The light-emitting device 270 and the lightreceiving device 272 are sensors for detecting whether the mobile telephone 30 is set on the cradle 40. When the mobile telephone 30 is not cradled, the light-receiving device 272 receives the light from the light-emitting device 270; otherwise, with the mobile telephone 30 on the cradle 40, the protrusion 250 of the cradle 40 is inserted in the groove 245 of the mobile telephone 30 so as to interrupt the light. Due to those elements shown in figures 2 and 5, such as the protrusion 250 formed on the cradle 40 of the hands-free telephone system, the groove 245 formed in the battery 240 of the mobile telephone 30, and the light-emitting device 270 and the light receivingdevice 272 each provided on opposite sides of the groove 245, a control section 110 of the mobile telephone 30 can detect that the mobile telephone 30 is set on the cradle 40. The structure of figure 5 corresponds to the mobile telephone cradling sensor 118.
The mobile telephone 30 as shown in figure 3 includes an ordinary mobile telephone block, and a special block for providing infrared communication between the mobile telephone 30 and the hands-free telephone system.
Referring to figure 3, an RF transceiver 100 modulates/demodulates a radio signal communicated via an antenna. A baseband section 102 processes a baseband signal. The control section 110 entirely controls the respective sections of the mobile telephone 30 and, especially infrared communication between the mobile telephone 30 and the hands-free telephone system. A memory 112 includes a ROM (Read-Only Memory) for storing various operating programs and initial service data mapped therein, and a RAM (Random Access Memory) for storing temporarily various data according to an operation of the mobile telephone 30. A key operating section 114 includes numeral keys and functional keys, and a display 116 displays the various data into characters under the control of the control section 110. The display 116 can be implemented, for example, by a liquid crystal display. The mobile telephone cradling sensor 118 has such a construction as shown in figure 5 and notifies the control section 110 whether the mobile telephone 30 is set on the cradle 40. A vocoder 104 processes a voice signal input via a microphone 106 and supplies the processed voice to the baseband section 102, or processes a signal transferred from the baseband section 102 and supplies the processed signal to a speaker 108.
Referring to figure 3, the respective sections provided for infrared light communication between the mobile telephone 30 and the hands-free telephone system includes a voice modulating section 120, a data modulating section 122, a multiplying section 124, an infrared light emitting section 126 and an infrared light receiving section, which are also shown in figure 2, comprising an infra-red receiver 128, an amplifier 130, a third filtering section 132, a voice demodulating section 134, a fourth filtering section 140, and a data demodulating section 138.
The voice modulating section 120 modulates a voice signal output from the vocoder 104 into a signal of a specified frequency bandwidth under the control of the control section 110. The data modulating section 122 modulates a data signal supplied from the control section 110 into a signal of a specified frequency bandwidth. The multiplying section 124 mixes the modulated voice signal from the voice modulating section 120 with the modulated data signal from the data modulating section 122 and outputs the mixed signals to the infrared light emitting section 126. The infrared light emitting section 126 emits the mixed voice signals from the multiplying section 124 as infrared rays. The infrared light receiving section 128 receives an infrared light signal from the cradle 40, converts it to an electrical signal and outputs the electrical signal to the amplifier 130. The amplifier 130 amplifies the output signal of the infrared light receiving section 128 to a predetermined level and outputs the amplified signal to the third and fourth filtering sections 132 and 140. The third filtering section 132 filters the output signal of the amplifier 130 with a voice-modulated bandwidth. The voice demodulating section 134 voicedemodulates the output signal of the third filtering section 132 and supplies it to the vocoder 104 under the control of the control section 110. The data demodulating section 138 data-demodulates the output signal of the fourth filtering section 140 and supplies it to the control- section 110.
Figure 4 is a block diagram for explaining a handsfree main body 14 according to an embodiment of the present invention. Hereinafter, a detailed description of generally known functions and structure of the elements will be avoided lest it should obscure the subject matter of the present invention.
Referring to figure 4, as already stated above with reference to figure 2, the cradle 40 has the infrared light emitting section 214, the infrared light receiving section 216 and the charging terminal pair 230, and includes an amplifier 218 connected to an output of the infrared light receiving section 216. Between the cradle 40 of figure 4 and the hands-free main body 14 is connected the cord 22 as shown in figure 1.
The hands-free main body 14 in the embodiment of the present invention includes a hands-free control section 200, a voice processing section 202, an external speaker 204, an external microphone 206, a first filtering section 220, a voice demodulating section 222, a second filtering section 224, a data demodulating section 226, a voice modulating section 208, a data modulating section 210, a multiplying section 212, and a power section 228. The power section 228 converts power (PWR) of the vehicle to a form of power needed to the mobile telephone 30 and supplies the power to the charging terminal pair 230 of the cradle 40.
The hands-free control section 200 entirely controls the respective sections of the hands-free main body 14.
The voice processing section 202, including a speech codec, processes the demodulated voice signal from the voice demodulating section 222 and outputs the processed voice signal to the external speaker 204. The voice processing section 202 also processes a voice signal received from the external microphone 206 and outputs it to the voice modulating section 208.
In the hands-free main body 14, the voice modulating section 208 modulates the voice signal output from the voice processing section 202 with a predetermined frequency bandwidth and outputs the modulated voice signal. The data modulating section 210 modulates a data signal supplied by the control section 200 with a specified frequency bandwidth and outputs the modulated data signal. The multiplying section 212 mixes the modulated voice signal from the voice modulator 208 with the modulated data signal from the data modulating section 210, and supplies the mixed signals to the infrared light emitting section 214 of the cradle 40. The first filtering section 220 filters the output signal of the amplifier 218 of the cradle 40 with a voice-modulated bandwidth. The voice demodulating section 222 voice-demodulates the output signal of the first filtering section 220 and supplies it to the voice processing section 202. The data demodulating section 226 data-demodulates the output signal of the second filtering section 224 and supplies it to the hands-free control section 200.
Now, a detailed description will be made of the operation of the present invention with reference to figures 1 to 5.
When a user cradles the mobile telephone 30 on the cradle 40, the infrared light emitting section 126 of the mobile telephone 30 becomes aligned or coincident with the infrared light receiving section 216 of the cradle 40, and the infrared light receiving section 128 of the mobile telephone 30 becomes aligned or coincident with the infrared light emitting section 214 of the cradle 40.
Further, the mobile telephone cradling sensor 118 detects a station that the mobile telephone 30 is set on the cradle 40, and outputs a mobile telephone cradling detection signal to the control section 110 of the mobile telephone 30.
Upon being supplied with the mobile telephone cradling detection signal, the control section 110 of the mobile telephone 30 enters a hands-free telephone mode. In the hands-free telephone mode, the control section 110 disconnects communication paths with the microphone 106 and the speaker 108 and activates the respective sections associated with the infrared light communication.
Thereafter, when the user of the mobile telephone 30 or an incoming call causes a communication path to be established, a voice signal to be transmitted to the handsfree main body 14 is modulated at the voice modulating section 120 and a data signal is modulated at the data modulating section 122. In this embodiment of the present invention, the voice modulating section 120 modulates the voice signal into a signal of several hundreds of KHz and the data modulating section 122 modulates the data signal into a signal of several MHz. The modulated voice signal from the voice modulating section 120 and the modulated data signal from the data modulating section 122 are mixed at the multiplying section 124 and then supplied to the infrared light receiving section 216 of the cradle 40 via the infrared light emitting section 126 of the mobile telephone 30.
The infrared light receiving section 216 of the cradle 40 amplifies the received signals at the amplifier 218 and supplies them to the first and section filtering sections 220 and 224 of the hands-free main body 14 shown in figure 4 via the cord. The first filtering section 220 band-pass filters the received signals with a bandwidth of several hundreds of KHz and outputs them to the voice demodulating section 222. The voice demodulating section 222 demodulates the band-pass filtered signals and supplies them to the voice processing section 202. The second filtering section 224 band-pass filters the received signals with a bandwidth of several MHz and outputs them to the data demodulating section 226. The data demodulating section 226 demodulates the band-pass filtered signals and supplies them to the hands-free control section 200. The hands-free control section 200 executes a corresponding operation based on the received data, and controls the received voice signal to be processed at the voice processing section 202 and then supplied to the external speaker 204.
Meanwhile, with a voice signal received via the external microphone 206 and a data signal to be transmitted to the hands-free control section 200, the voice signal from the voice processing section 202. is modulated at the voice modulating section 208 and the data signal is modulated at the data modulating section 210. The voice modulating section 208 modulates the voice signal into a signal of several hundreds of kHz and the data modulating section 210 modulates the data signal into a signal of several MHz. The modulated voice signal from the voice modulating section 208 and the modulated data signal from the data modulating section 210 are mixed at the multiplying section 212 and supplied to the infrared light receiving section 128 of the mobile telephone 30 via the infrared light emitting section 214 of the cradle 40.
The infrared light receiving section 128 of the mobile telephone 30 shown in figure 3 causes the received signal to be amplified at the amplifier 130 and then supplied to the third and fourth filtering sections 132 and 140. The third filtering section 132 band-pass filters the received signal with a bandwidth of several hundreds of kHz and outputs the filtered received signal to the voice demodulating section 134. The voice demodulating section 134 demodulates the band-pass filtered signal and supplies it to the vocoder 104. The fourth filtering section 140 band-pass filters the received signal with a bandwidth of several MHz and outputs the filtered received signal to the data demodulating section 138. The data demodulating section 138 demodulates the band-pass filtered signal and supplies it to the control section 110 of the mobile telephone 30. The control section 110 executes a corresponding operation based on the received data signal, and controls the received voice signal to be radio transmitted to the baseband section 102, the radio transceiver 100 and the antenna.
When the user cradles the mobile telephone 30 on the cradle 40, the charging terminal pair 260 of the mobile telephone 30 is brought in contact with the charging terminal pair 230 of the cradle 40, thereby supplying power from the power section 228 of the hands-free main body 14 to the battery 240 via the charging terminal pairs 230 and 260. It is desirable that the charging terminal pair 230 of the cradle 40 comprises free terminals, since the charging terminal pair 260 of the mobile telephone 30 normally comprises fixed terminals. Therefore, the handsfree telephone system according to the embodiment of the present invention can have a function as a charger during use, i. e., while the mobile telephone is set on the cradle, as in the case of the conventional hands-free telephone system.
As stated above, the present invention presents an advantage in that communication between the mobile telephone and the hands-free telephone system can be established without any physical communication such aE connection by a curl cord. Furthermore, the hands-free telephone system can be used as a charger as in the case ol the conventional hands-free telephone system.
While the invention has been shown and described wit ? reference to a certain preferred embodiment thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (13)
- CLAIMS 1. A hands-free telephone system for a vehicle, comprising: a mobile telephone cradle having a first infrared light transceiver in a surface thereof; a mobile telephone having a second infrared light transceiver for exchanging infrared signals with the first infrared light transceiver when the mobile telephone is set on the cradle, the mobile telephone modulating internally processed voice and data signals, outputting the modulated voice and data signals via the second infrared light transceiver and demodulating the voice and data signals received via the second infrared light transceiver; and a hands-free main body for modulating the voice, received via an external microphone, and data signals, outputting the modulated voice and data signals to the first infrared light transceiver of the cradle, demodulating the voice and data signals received via the first light transceiver, and outputting the demodulated voice and data signals to an external speaker.
- 2. A hands-free telephone system as claimed in claim 1, wherein the hands-free main body comprises: a voice modulating section for modulating the voice signal received via the external microphone; a data modulating section for modulating the internally processed data signal; a multiplying section for mixing outputs of the voice modulating section and the data modulating section ; a first infrared light transmitting section for infrared light transmitting an output of the multiplying section; a first infrared light receiving section for receiving an infrared light signal output from the mobile telephone; a first filter for filtering the received signal from the first infrared light receiving section with a voice-modulated bandwidth; a second filter for filtering the received signal from the first infrared light receiving section with a data-modulated bandwidth ; a voice demodulating section for voice demodulating an output of the first filter; and a data demodulating section for data demodulating an output of the second filter.
- 3. A hands-free telephone system as claimed in claim 2, further comprising an amplifier for amplifying the received signal from the first infrared light receiving section to a predetermined level between the first infrared light receiving section and the first and second filters.
- 4. A hands-free telephone system as claimed in any preceding claim, wherein the mobile telephone comprises: a voice modulating section for modulating the voice signal internally processed; a data modulating section for modulating the data signal internally processed; a multiplying section for mixing outputs of the voice modulating section and the data modulating section; a second infrared light transmitting section for infrared light transmitting an output of the multiplying section; a second infrared light receiving section for receiving an infrared light signal output from the cradle; a third filter for filtering the received signal from the second infrared light receiving section with a voice-modulated bandwidth; a fourth filter for filtering the received signal from the second infrared light receiving section with a data-modulated bandwidth; a voice demodulating section for voice demodulating an output of the third filter; and a data demodulating section for data demodulating an output of the fourth filter.
- 5. The hands-free telephone system as claimed in claim 4, further comprising an amplifier for amplifying the received signal from the second infrared light receiving section to a predetermined level between the second infrared light receiving section and the third and fourth filters.
- 6. A hands-free telephone system as claimed in any of claims 2 to 4, wherein the voice modulating section modulates the voice signal to several hundreds of KHz and the data modulating section modulates the data signal to several MHz.
- 7. A hands-free telephone system as claimed in any preceding claim further comprising a charging terminal pair of the cradle for contact with a charging terminal pair of the mobile telephone when the mobile telephone is set on the cradle to charge the mobile telephone.
- 8. A hands-free telephone system as claimed in any preceding claim, further comprising a mobile telephone cradling sensor for notifying whether the mobile telephone is set on the cradle.
- 9. A hands-free telephone system as claimed in claim 8 wherein the mobile telephone cradling sensor comprises : a protrusion formed on the surface of the cradle; a groove formed on one side of the mobile telephone, the protrusion being inserted in the groove with the mobile telephone set on the cradle; and sensors each formed on opposite sides of the groove, for generating a mobile telephone cradling detection signal when the mobile telephone is set on the cradle.
- 10. A hands-free telephone system substantially as described herein with reference to and/or as illustrated in any of figures 2 to 5.
- 11. A hands-free telephone system cradle for a hands-free telephone system as claimed in any preceding claim.
- 12. A mobile telephone for a hands free telephone system as claimed in any preceding claim.
- 13. A mobile telephone substantially as described herein with reference to and/or as illustrated in any of figures 2 to 5.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019980060779A KR100276813B1 (en) | 1998-12-30 | 1998-12-30 | Car Hands Free Call Device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB9930740D0 GB9930740D0 (en) | 2000-02-16 |
| GB2345403A true GB2345403A (en) | 2000-07-05 |
Family
ID=19567543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9930740A Withdrawn GB2345403A (en) | 1998-12-30 | 1999-12-29 | Infra-red link for in-car hands-free telephone arrangement |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100276813B1 (en) |
| CN (1) | CN1259804A (en) |
| GB (1) | GB2345403A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1259052A2 (en) * | 2001-05-16 | 2002-11-20 | Nokia Corporation | Hands-free operation of mobile terminal using wireless communication link |
| CN103354578A (en) * | 2013-06-09 | 2013-10-16 | 厦门信得通工贸有限公司 | Wired hand-free system of mobile phone |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010110513A (en) * | 2000-06-07 | 2001-12-13 | 이영아 | Infrared handsfree system for mobile communication devices |
| CA2396861C (en) * | 2000-11-30 | 2009-08-04 | Sony Corporation | Monitor device, base device and information terminal device |
| KR20030054203A (en) * | 2001-12-24 | 2003-07-02 | 엘지전자 주식회사 | Structure connecting mobile phone and hands-free |
| KR20040006853A (en) * | 2002-07-16 | 2004-01-24 | 주식회사 현대오토넷 | Wireless handfrees kit |
| EP1440849B1 (en) * | 2003-01-23 | 2005-04-27 | Sony Ericsson Mobile Communications AB | Holder for a clamshell-type mobile phone |
| CN101729640A (en) * | 2008-10-17 | 2010-06-09 | 宏达国际电子股份有限公司 | Mobile communication system and method for controlling same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423733A2 (en) * | 1989-10-19 | 1991-04-24 | Siemens Aktiengesellschaft Österreich | Support device for the mobile unit of a cordless or mobile telephone |
| GB2324920A (en) * | 1997-04-25 | 1998-11-04 | Nec Corp | Option apparatus for a portable terminal unit |
| JPH10308802A (en) * | 1997-05-02 | 1998-11-17 | Nissan Motor Co Ltd | Mobile telephone set holder and mobile telephone set |
-
1998
- 1998-12-30 KR KR1019980060779A patent/KR100276813B1/en not_active IP Right Cessation
-
1999
- 1999-12-15 CN CN99124649A patent/CN1259804A/en active Pending
- 1999-12-29 GB GB9930740A patent/GB2345403A/en not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0423733A2 (en) * | 1989-10-19 | 1991-04-24 | Siemens Aktiengesellschaft Österreich | Support device for the mobile unit of a cordless or mobile telephone |
| GB2324920A (en) * | 1997-04-25 | 1998-11-04 | Nec Corp | Option apparatus for a portable terminal unit |
| JPH10308802A (en) * | 1997-05-02 | 1998-11-17 | Nissan Motor Co Ltd | Mobile telephone set holder and mobile telephone set |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1259052A2 (en) * | 2001-05-16 | 2002-11-20 | Nokia Corporation | Hands-free operation of mobile terminal using wireless communication link |
| EP1259052A3 (en) * | 2001-05-16 | 2004-04-28 | Nokia Corporation | Hands-free operation of mobile terminal using wireless communication link |
| CN103354578A (en) * | 2013-06-09 | 2013-10-16 | 厦门信得通工贸有限公司 | Wired hand-free system of mobile phone |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100276813B1 (en) | 2001-01-15 |
| GB9930740D0 (en) | 2000-02-16 |
| KR20000044288A (en) | 2000-07-15 |
| CN1259804A (en) | 2000-07-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |