DE202004017124U1 - Voice-controlled hands-free telephone in automobile plugged into cigarette lighter socket and provided with speech recognition device for automatic number selection - Google Patents

Abstract

The hands-free telephone has a main unit (1) providing the essential functions of a normal mobile telephone, e.g. a Bluetooth(RTM) mobile telephone, with a keyboard for selection and input of information, a memory (17) for storage of telephone numbers, a plug connection for plugging into the cigarette lighter socket of an automobile, a microphone (14) and a loudspeaker (15). The voice-controlled number selection is provided by a control device (11) with a speech recognition device, for automatic selection of a number stored in the memory in response to a spoken command.

Description

The The invention relates to a car handsfree telephone, in particular to a car, that is chosen by a voice input can be.

[State of the art]

To the secure and convenient call reception / speech (so-called hands-free) when driving comes handsfree telephone for use. One differentiates fixed installation hands-free telephone and insert hands-free telephone. A built-in handsfree telephone includes in addition to the essential functional components a mobile phone (such as transmitter / receiver) also microphone / speakers (or headphones) with across from a usual one Mobile phone of increased power to "spaced" speaking / listening. One such fixed-speaker speakerphone is in the construction of a motor vehicle therein firmly installed. There is the disadvantage that it is for the most prevalent still used old motor vehicle type is not suitable, which does not have a hands-free kit feature, to equip or convert with such a speakerphone.

In order to a fitting / conversion an existing old vehicle type with a hands-free system is possible, has been developed use handsfree phone. Such a deployment speakerphone is in fact only an intermediate station serving as an amplifier between a user and a standard mobile phone and must work together be used with this mobile phone. She has a microphone and a loudspeaker with increased power compared to the mobile phone, and a plug for plugging into the cigarette lighter for its power supply on. In the following, the waypoint alone becomes "hands-free" and the combination from such a hands-free kit and its associated mobile phone named as "Use Handsfree Phone". In use the mobile phone is either wireless (e.g., the so-called Bluetooth technology) or over a cable connected to the hands-free kit. By strengthening the serving as a stopover handsfree is a spaced Speaking / Listening (the so-called "hands-free") possible. there A user's voice enters the hands-free kit via the microphone one and will over the cable or (in the case of a Bluetooth mobile phone) wirelessly forwarded to the mobile phone, where they are in usual Way is sent. In contrast, all by the mobile phone received sounds including ringing, wireless or over that Cable forwarded to the handsfree and reinforced by spent her speaker.

Neither the built-in handsfree telephone still the use handsfree telephone allows a "free dialing" that is a hands-free and safe dialing presupposes in a continuing motor vehicle; in other words you have to with the two types with one hand the telephone number to be called choose. As a result, choosing is safe impossible with a moving car.

Here The invention aims to remedy this. The invention is the task Underlying to create a hands-free phone that works in any existing car type can be used and with the free dialing while driving is possible.

The Invention is based on the core idea that the free dialing by a voice input the one to choose Telephone number can be made. For this purpose, a speech recognition is provided.

In order to an inventive handsfree telephone can be used in any existing motor vehicle type, this is in shape a plug in the cigarette lighter Hands-free device educated. Preferably, the hands-free device without the interaction a usual one Mobile phone independently work. In other words, includes the plugged in the cigarette lighter main unit the all functions of a usual Mobile phones, and not just a simple amplifier for the acoustic Input / output same, as is the case with the well-known use handsfree telephone the case is.

Around the space requirement of the main unit To reduce the keyboard is preferably as a separate from the main unit Part formed, with the connection between the main unit and the Keyboard either over a cable or wireless can be done. Because the keyboard only when entering with the main unit is used and used, the space is required Such a hands-free phone would otherwise be kept minimal.

Of the Applicant had in his German utility model U 2020 400 1122.0 an FM transmitter proposed over a music that z..B. through a cheap CD player or one MP3 player is played, wirelessly transmitted to a high-quality broadcasting device and played by means of the high-quality loudspeaker of the same which allows the high-quality speaker of the radio to play any desired Music can be exploited. So is an advantageous development the invention provides such an FM transmitter to the high-quality speakers of the car audio system. For the detailed details of the FM transmitter is referred to U 2020 400 1122.0.

The invention will be described below with reference to embodiments shown in the drawing explained in more detail. Show it:

[Drawing]

1 a block diagram of the main unit of a speakerphone according to the invention,

2 in perspective view an inventive hands-free phone from a main unit and a keyboard, and

3 as 1 a block diagram of the main unit of a handsfree telephone according to the invention, but with an FM transmitter to exploit the high-quality radio apparatus of the motor vehicle.

[Explanation of Preferred Embodiments]

2 illustrates a hands-free telephone according to the invention with a main unit 1 comprising all of the essential components and functions of a standard mobile telephony including the transceiver for wireless communication with the central office (with the exception of the keypad) and a keypad 2 due to the reduction in the footprint of the main unit 1 formed as a separate part and with the main unit via a cable or wirelessly connectable. For this purpose, the main unit has a connection point 131 on. At the junction 131 it is a plug socket at the end of the cable of the keyboard 2 if the connection between the main unit 1 and the keyboard 2 through the cable. In the case of a wireless connection is at the connection point 131 provided an IR receiver. Accordingly, the testament 2 the cable has an IR transmitter. As with a well-known use mobile phone, the main unit 1 a plug for plugging in the cigarette lighter of the motor vehicle. Furthermore, the main unit has 1 a number of functional pushbuttons 16 to his control.

How out 1 As can be seen, the Bluetooth hands-free phone as usual has a Bluetooth module 12 to his wireless communications at a short distance. As with a standard mobile phone is to self-dialing a memory 17 provided in which the frequently dialing telephone numbers can be stored. In addition, the main unit includes 1 , which is plugged with its plug in the cigarette lighter of the motor vehicle, as in the known insert speakerphone a microphone 14 and a speaker 15 for spaced input / output of acoustic signals. The peculiarity of the invention consists in a voice-controlled dialing by a control device 11 with a voice recognition for recognizing a voice input for self-dialing one of the memory 17 pre-stored telephone numbers. For voice-controlled dialing, the voice input of the user corresponding to the telephone number to be dialed is converted by the voice recognition into a corresponding electrical telephone number signal and with that in the memory 17 stored phone numbers compared to find the phone number to be dialed and then in the usual way to make a self-dial. As a result, a comfortable and safe "free dialing" is achieved when the motor vehicle continues.

In the embodiment in FIG 2 has the keyboard 2 the look of a standard mobile phone. Nevertheless, it has only the functions of a conventional keyboard for entering the telephone numbers to be dialed or the information to be stored or transmitted, but not the other functions of the same.

In order to exploit the high-quality loudspeaker of the broadcasting apparatus of the motor vehicle, for example for playing a music that is played, for example, by a cheap CD player or an MP3 player, an FM transmitter 18 provided over which the music wirelessly transmitted to the high quality radio and can be played by his high-quality speaker, whereby the reproduced sound quality is significantly improved. For the detailed details of the FM transmitter reference is made to U 2020 400 1122.0.

• 1 ) Mit dem erfindungsgemäßen Freisprechtelefon ist Unter Weiterfahren eines Kraftwagens nicht nur ein Freisprechen, sondern auch ein "Freiwählen" möglich, wodurch die Bequemlichkeit und Gefahrlosigkeit des Fahrens noch erhöht werden.
• 2) Mit dem FM-Sender wird der hochwertige Lautsprecher des Rundfunkapparates des Kraftwagens zur erheblichen Erhöhung der Wiedergabe-Qualittät ausgenutzt.

Compared with the prior art, the advantages achieved by the invention can be seen therein:

• 1) With the hands-free telephone according to the invention is driving on a motor vehicle not only a hands-free, but also a "free choice" possible, whereby the convenience and safety of driving are still increased.
• 2) With the FM transmitter, the high-quality speaker of the radio of the motor vehicle is used to significantly increase the playback quality.

Claims (4)

A car handsfree telephone with a main unit 1 , which has the essential functions of a conventional mobile phone, in particular a Bluetooth telephone, and which has a keyboard for selecting and entering information, a memory 17 for prestoring the telephone numbers to be dialed, a plug for insertion in the cigarette lighter socket of a motor vehicle, a microphone and a loudspeaker for user-spaced input / output of acoustic signals, characterized by a voice-controlled dialing from a control device 11 with a spray cherkennung to recognize a voice input for self-dialing one of the memory 17 pre-stored phone numbers. Car handsfree telephone according to claim 1, characterized in that the keyboard 2 as one from the main unit 1 formed separate part and connectable to this via a cable. Car handsfree telephone according to claim 1, characterized in that the keyboard 2 as one from the main unit 1 is formed separate part and can be communicated with this wirelessly, for example by IR radiation. Car handsfree telephone according to claim 1, characterized in that the main unit 1 an FM transmitter 18 over which the in the memory 17 stored acoustic data, in particular a digitized music transmitted to a broadcasting apparatus of the motor vehicle and can be played on his high-quality speakers.