Patent Publication Number: US-2005143152-A1

Title: Wireless earphone with incoming call vibration function

Description:
BACKGROUND OF THE INVENTION  
      1. Field of the Invention  
      The present invention relates to a wireless earphone with incoming call vibration, more specifically, relates a wireless bluetooth earphone with the incoming call vibration function.  
      2. Description of the Related Art  
      Bluetooth is a technique for low cost, low power and short distance wireless communication that can be applied to any personal mobile communication device. For example, the bluetooth can be used to design a wireless earphone, a portable cell phone watch and a communication device worn on a finger. These products not only can be used for wireless communication but can also provide the functions of browsing on the Internet and receiving/sending e-mail if they have a bluetooth chip built in.  
      There are diverse kinds of bluetooth wireless earphones on the market. These earphones are with a bluetooth cell phone. The incoming call signal of the bluetooth cell phone is wireless-transmitted to the bluetooth wireless earphone by bluetooth communication technique, and the voice signal is transmitted through the bluetooth wireless earphone to the bluetooth cell phone by bluetooth communication technique to achieve a full duplex communication. However the bluetooth wireless earphone is portable and can be used separate from a bluetooth cell phone; therefore the people often leave the bluetooth cell phone someplace and only carry the bluetooth wireless earphone. The incoming call signal is often missed because of the outside noise.  
     SUMMARY OF THE INVENTION  
      The primary object of the present invention is to provide a wireless earphone with an incoming call vibration function that can be installed in a vibrator in a wireless earphone and process the incoming call signal to drive the vibrator to make an incoming call alert action.  
      The present invention provides a wireless earphone with an incoming call vibration function that uses the wireless communication module to receive the incoming call signal and processes the incoming call signal to control the driving circuit with the DSP, after which the driving circuit produces the driving signal to drive the vibrator and produce the effect of the incoming call warning. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS  
      The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, in which:  
       FIG. 1  is a framework diagram of the communication of the present invention;  
       FIG. 2  is a circuit block diagram of the wireless earphone with incoming call vibration function of the present invention. 
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS  
       FIG. 1  is a schematic diagram of the present invention. The present invention is a wireless earphone  10  with an incoming call vibration function. The wireless earphone  10  can communicate with a bluetooth cell phone  30 , and can turn on or turn off the incoming call warning function thereof by an operating a switch  13 .  
       FIG. 2  is a block diagram of the wireless earphone with an incoming call vibration function according to the present invention. The present invention provides a wireless earphone  10  with an incoming call vibration function. The wireless earphone  10  informs a user of the incoming call by driving a vibrator  15  in earphone in response to an incoming call signal. Moreover the wireless earphone  10  comprises a wireless communication module  11 , a DSP  12 , a switch  13 , a driving circuit  14 , a vibrator  15 , a voice transmission and encoder/decoder unit  16 , an earphone  17  and a microphone  18 .  
      Referring to  FIG. 2 , the wireless communication module  11  is coupled to the DSP  12  for receiving a remote data signal  20  and replying with a modulation signal  22 , in which the remote data signal  20  is an incoming call signal.  
      When a call is incoming, the wireless communication module  11  receives the incoming call signal, and then the incoming call signal is processed by the DSP  12  so as to output a control signal to control the driving circuit  14  coupled to the DSP  12 . Moreover, the driving circuit  14  produces the driving signal to drive the vibrator  15  to achieve the warning function for the income-call. In above, the driving circuit  14  is a transistor driving circuit that consists of a transistor and a resistor. The base of the transistor is connected to the DSP  12  through the resistor, whereby the transistor is controlled by the DSP  12 . The vibrator  15  is connected to the emitter of the transistor and has intermittent or continuous vibration for warning. Moreover, at the same time, the wireless communication module  11  receives the remote data signal  20  and the remote data signal  20  is decoded by the DSP  12 . After being decoded by a voice transmission and encoder/decoder unit  16  of the DSP  12 , the voice signal can be heard clearly through the earphone  17 . In response, a reply voice signal can be sent through the microphone  18  into the voice transmission and encoder/decoder unit  16  of the DSP  12  encodes the reply voice signal. After encoding the reply signal, the reply signal is transmitted to the wireless communication module  11  and a modulation signal  22  is replied to a remote bluetooth cell phone  30 .  
      The wireless earphone with incoming call vibration function of the present invention processes the incoming call signal by DSP  12  and controls the driving circuit  14  coupled to the DSP  12  so as to produce the driving signal to drive the vibrator  15  to achieve the warning function of the income-call. Moreover, the wireless earphone  10  uses the wireless communication module  11  to complete the full duplex communication, in which the wireless communication module  11  is a bluetooth communication module.  
       FIG. 2  is a circuit block diagram of the wireless earphone with incoming call vibration function according to the present invention. The switch  13  is coupled to the DSP  12  and the driving circuit  14  for controlling the on/off of the driving circuit  14  so as to turn on or turn off the vibrator  15 . The switch  13  is a dipswitch that can be used to achieve the best effect of saving power.  
      Therefore the wireless earphone with incoming call vibration function according to the present invention could use the wireless communication module  11  to receive the incoming call signal and control the driving circuit  14  according to the processed incoming call signal by the DSP  12 . Moreover, the driving circuit  14  transmits the driving signal to drive the vibrator  15  to produce the warning action of the income-call. Therefore, the wireless earphone with incoming call vibration function according to the present invention solves the problem of low warning sound in the wireless bluetooth earphone.  
      Although the present invention has been described with reference to the preferred embodiment thereof, it will be understood that the invention is not limited to the details thereof. Various substitutions and modification have suggested in the foregoing description, and other will occur to those of ordinary skill in the art. Therefore, all such substitutions and modifications are intended to be embraced within the scope of the invention as defined in the appended claims.