DE202005006249U1 - Bluetooth headphone or headphones comprises a digital signal processor, Bluetooth module, sound transmission and encoding and decoding unit, an MP3 decoder and a sound output unit - Google Patents

Abstract

Bluetooth headphone or headphones with an MP3 play function have a digital signal processor, a Bluetooth module, a sound transmission and coder-encoder unit that is connected to the digital signal processor and the Bluetooth module, an MP3 decoder unit and a sound output unit. The unit can be coupled to at least one memory card type, e.g. a memory stick, compact flash, smart media, multi-media or secure digital card.

Description

The Invention relates to a Bluetooth headset with MP3 playback function, especially a Bluetooth headset, the MP3 files [abbr. For Moving Picture Expert Group Audio Layer 3].

Bluetooth is a cheap low-power, low-reach nutrition technology which can be used extensively in all individual mobile radios is. With the radio transmission function The Bluetooth technology are Bluetooth phones, portable watch phones and Radios, which can be held directly in the hand, has been developed. If a Bluetooth processor is installed in such devices have such equipment not just the radio transmission function, but you can also take over functions for Internet surfing and email transmission / reception. Furthermore they are very ergonomic to use.

It There are several types of Bluetooth headphones on the market at the time of purchase Use to interact normally with a bluetooth mobile phone. This means, that the acoustic input signal of Bluetooth technology wirelessly transferred to the Bluetooth headset The acoustic information to be sent is first used the Bluetooth technology wirelessly over the Bluetooth headset to the Bluetooth mobile phone. In this way, an intercom operation is possible.

MP3 (MPEG Audio Layer3) is a highly efficient compression technique under lossless condition. The original audio signal is from him processed with a special data compression method so that the digital audio file to only one-tenth of the original Size compressed will and the music quality but almost unchanged remains. Because the music quality Almost as good as a CD disc, the MP3 player is on the market a very popular and widely used player.

In order to the Bluetooth headset Therefore, the inventor adds one very small and very comfortable wearable decryption unit from MP3 and control unit in Bluetooth headphones together, which also contains MP3 files can play. At the same time, the storage capacity of the Bluetooth headset with an externally connected memory card can be extended.

Of the Invention has for its object to provide a Bluetooth headphone, equipped with an MP3 decoding unit and a storage unit is to fulfill an MP3 playback function.

These The object is achieved by a Bluetooth headset with MP3 playback function, the features specified in claim 1 having. Further advantageous developments of the invention go from the dependent claims out.

in the Following are objects, features and operation of the invention based on the preferred embodiments and the accompanying drawings be explained in more detail. Show it:

1 a perspective view of an embodiment of a Bluetooth headset according to the invention, wherein the procedure for introducing a memory card is indicated by an arrow;

2 a perspective drawing of another embodiment of a Bluetooth headset according to the invention with an additional handset;

3 a block diagram of the circuit for the embodiment according to 1 ; and

4 a block diagram of the circuit for the embodiment according to 2 ,

Referring to 1 has a Bluetooth headset according to the invention 1 with MP3 playback function one slot 13 to abandon a memory card 4 What a detachable connection of the memory card 4 with the Bluetooth headset 1 provides. In addition, the storage capacity of the Bluetooth headset 1 with the inserted memory card 4 be extended.

How out 2 is apparent, is another listener 2 via a connecting cable or a bracket on the Bluetooth headphones according to the invention 1 connected to allow a stereophonic reproduction.

Regarding the arrangement of the circuit for connecting the memory card 4 be on 3 directed. There is also recognizable that the Bluetooth headset 1 with a memory card 4 is connectable to the expansion of the storage capacity, wherein it is a digital signal processing unit 12 , an MP3 decoding unit 14 , a sound transmission and encoding / decoding unit 19 , a sound signal output unit 16 , a Bluetooth module 18 , a microphone 17 , a storage unit 11 , a card reading unit 10 and an input unit 15 includes.

In 3 is shown that the storage unit 11 to the digital signal processing unit 12 is coupled and controlled by it to store digital data. The storage unit 11 can as Flash Memory be executed. Besides, the card reading unit is 10 to the digital signal processing unit 12 coupled and controlled by it to access the digital data in the card reader unit 10 inserted memory card 4 to allow. With the memory card 4 an extended storage capacity is achieved. The memory card 4 is used to store a large amount of MP3 files. The memory card 4 is designed as a flash memory and is detachable with the card reading unit 10 connected. The above-mentioned memory card 4 is selected from a group including MS (Memory Stick), CF (Compact Flash), SMC (Smart Media), MMC (Multi Media), and SD (Secure Digital).

It will be referred to again 3 taken. The input unit 15 is to the digital signal processing unit 12 coupled while the digital signal processing unit 12 to the MP3 decoding unit 14 connected. The input unit 15 is used to output a control signal, with which the operation of the digital signal processing unit 12 can control. This results in a function of the human-machine interface. Also, those in the storage unit 11 stored, digital MP3 files with the in connection with the digital signal processing unit 12 standing MP3 decoding unit 14 be converted into sound signals, which then to the sound signal output unit 16 to get redirected. In this way you can by means of the sound signal output unit 16 Listen to MP3 music. As mentioned above, the digital signal processing unit can be used 12 from the input unit 15 control what a trouble-free control of the memory card 4 when accessing the memory card 4 digital MP3 files. Thereafter, the selected digital MP3 files are received from the MP3 decoding unit 14 processed and thus converted into sound signals, which then to the sound signal output unit 16 to get redirected. So you can also via the sound signal output unit 16 listen to the mp3 music. The above-mentioned sound signal output unit 16 is designed as a headphone.

Likewise, reference is made to 3 taken. The audio transmission and encoding / decoding unit 19 is with the digital signal processing unit 12 and the Bluetooth module 18 is used to encode and decode sounds as well as the conversion between digital and analog data. The Bluetooth module 18 is responsible for receiving a remote signal and sending a feedback modulation signal. The remote signal is understood in this context to be an incoming signal. With the sound transmission and coding / decoding unit 19, that of the Bluetooth module 18 received remote signal are then decoded by the digital signal processing unit 12 is processed and converted into sound signal, further to those in connection with the Tonübertragungs- and encoding / decoding unit 19 standing sound signal output unit 16 forwarded to the issue.

Furthermore, the audio transmission and encoding / decoding unit 19 a microphone 17 connected to which a voice signal to the Tonübertragungs- and encoding / decoding unit 19 is sendable. The audio transmission and encoding / decoding unit 19 is from the digital signal processing unit 12 controlled so that the voice signal is encoded, wherein the feedback modulation signal from the Bluetooth module 18 is broadcast to a remote bluetooth phone.

When a phone call arrives, the Bluetooth module receives 18 the remote signal, which is then sent to the audio transmission and encoding / decoding unit 19 is sent for decryption, wherein the decrypted signal from the digital signal processing unit 12 control and process as well as to the sound signal output unit 16 forwarded to the issue. It is audible. One hears just about the sound signal output unit 16 the MP3 music, then playing the MP3 music from the digital signal processing unit 12 interrupted. This results in a priority for the incoming call. After completing the telephone conversation, the sound signal output unit becomes 16 from the digital signal processing unit 12 controlled so that the MP3 music is played again.

To output a speech signal, it is via the microphone 17 to the audio transmission and encoding / decoding unit 19 sent to the coding and then to the bluetooth module 18 forwarded. Thereafter, a feedback modulation signal from the Bluetooth module 18 aired to a distant Bluetooth cell phone. In this way, an intercom operation of the Bluetooth headset according to the invention 1 via the Bluetooth module 18 possible.

4 shows in principle a same embodiment as 3 but with the difference that the extra listener 2 with the MP3 decoding unit 14 , the audio transmission and encoding / decoding unit 19 and the sound signal output unit 16 connected is. This results in an interaction of the listener 2 with the sound signal output unit 16 to ensure a stereophonic reproduction.

• 1. Unter Verwendung einer drahtlosen Verbindung zwischen dem Bluetooth-Modul 18 und dem weit entfernten Bluetooth-Handy ist ein Gegensprechbetrieb des erfindungsgemäßen Bluetooth-Kopfhörers 1 möglich.
• 2. Unter Verbindung der Digitalsignalverarbeitungseinheit 12 mit der MP3-Decodiereinheit 14 können die in der Speichereinheit 11 abgespeicherten MP3-Dateien zu Tonsignalen entschlüsselt werden. Außerdem wird der Zugriff der in der Speicherkarte 4 abgespeicherten digitalen MP3-Dateien mittels der Kartenleseeinheit 10 bewirkt, so dass die Digitalsignalverarbeitungseinheit 12 ebenfalls über die MP3-Decodiereinheit 14 die digitalen MP3-Dateien zu Tonsignalen entschlüsseln kann. Die von der MP3-Decodiereinheit 14 ausgegebenen Tonsignale werden an die Tonsignalausgabeeinheit 16 weitergeleitet, damit der Benutzer die MP3-Musik hören kann.
• 3. An den erfindungsgemäßen Bluetooth-Kopfhörer 1 mit MP3-Abspielfunktion ist ein zusätzlicher Hörer 2 angeschlossen, mit dem eine stereophone Wiedergabe möglich ist.

In summary, for example, the following advantages can be realized with the inventive Bluetooth headset with MP3 playback function:

• 1. Using a wireless connection between the Bluetooth module 18 and the far-flung Bluetooth mobile is an intercom operation of the Bluetooth headset according to the invention 1 possible.
• 2. Under connection of the digital signal processing unit 12 with the MP3 decoding unit 14 can be in the storage unit 11 stored MP3 files to sound signals are decrypted. In addition, the access is stored in the memory card 4 stored digital MP3 files by means of the card reading unit 10 causes, so the digital signal processing unit 12 also via the MP3 decoding unit 14 the digital MP3 files can decrypt sound signals. The of the MP3 decoding unit 14 output sound signals are sent to the sound signal output unit 16 forwarded so that the user can hear the MP3 music.
• 3. At the Bluetooth headphones according to the invention 1 with MP3 playback function is an additional handset 2 connected, with a stereophonic playback is possible.

1

Bluetooth headphones with MP3 playback function

10

Card reader unit

11

storage unit

12

Digital signal processing unit

13

slot

14

MP3 decoding unit

15

input unit

16

Tonsignalausgabeeinheit

17

microphone

18

Bluetooth module

19

sound transmission and coding / decoding unit

2

receiver

4

memory card

Claims (10)

Bluetooth headset with MP3 playback function, comprising: a digital signal processing unit ( 12 ), which is responsible for the processing of the digital signals as well as for the central sequencing and coordination of the whole system; a Bluetooth module ( 18 ) receiving a far-off data signal and radiating a feedback modulation signal; a sound transmission and coding / decoding unit ( 19 ) connected to the digital signal processing unit ( 12 ) and the Bluetooth module ( 18 ), the audio transmission and coding / decoding unit ( 19 ) is responsible for the coding and decoding of tones as well as for the conversion between digital and analogue data; an MP3 decoding unit ( 14 ) connected to the digital signal processing unit ( 12 ), the MP3 decoding unit ( 14 ) is responsible for the decryption of digital MP3 files to audio signals; a sound signal output unit ( 16 ) connected to the audio transmission and encoding / decoding unit ( 19 ) and the MP3 decoding unit ( 14 ) connected is; and a microphone ( 17 ) connected to the audio transmission and encoding / decoding unit ( 19 ) connected is. Bluetooth headset according to claim 1, characterized in that a memory unit ( 11 ) to the digital signal processing unit ( 12 ) and is responsible for the storage of digital data. Bluetooth headset according to claim 2, characterized in that the memory unit ( 11 ) is executed as a flash memory. Bluetooth headset according to claim 1, characterized in that the input unit ( 15 ) to the digital signal processing unit ( 12 ) and is responsible for the output of a control signal with which the digital signal processing unit ( 12 ) is controllable. Bluetooth headset according to claim 1, characterized in that the audio signal output unit ( 16 ) is designed as a headphone. Bluetooth headset according to claim 1, characterized in that an additional handset ( 2 ) in conjunction with the audio transmission and encoding / decoding unit ( 19 ) and the MP3 decoding unit ( 14 ) is provided. Bluetooth headset according to claim 1, characterized in that a card reading unit ( 10 ) in conjunction with the digital signal processing unit ( 12 ) and the memory card ( 4 ), the card reading unit ( 10 ) from the digital signal processing unit ( 12 ) is controllable to access the memory card ( 4 ) to effect stored digital data. Bluetooth headset according to claim 7, characterized in that the memory card ( 4 ) into the card reading unit ( 10 ) is insertable. Bluetooth headset according to claim 7, characterized in that the memory card ( 4 ) is executed as a flash memory. Bluetooth headset according to claim 7, characterized in that the memory card ( 4 ) is selected from a group including MS (Memory Stick), CF (Compact Flash), SMC (Smart Media), MMC (Multi Media) and SD (Secure Digital).