Abstract:
There is provided a communication device for mixing effects data with real communication data. The communication device comprises a receiving element configured to receive real communication data, a first analog-to-digital converter (ADC) configured to convert real communication data to digitized real communication data, an effects data storage containing the effects data, a first mixer configured to mix the digitized real communication data with the effects data and generate first enhanced data, and a coder configured to packetize the first enhanced data to generate packetized data, and transmit the packetized data over a communication line. The communication device may be a phone, and the real communication data may be audio or video data, and the effects data maybe background effects audio or video data.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates generally to methods and systems for enhancing personal communications. More particularly, the present invention relates to methods and systems for mixing background effects with real communication data. 
         [0003]    2. Background Art 
         [0004]    Today, mobile communication devices have become an integral part of the daily life. As an example, cell phones have given people a newfound mobility that allows them to conduct their business on the go. Although this newfound mobility offers many advantages, any cell phone user would attest to the fact that moving from one location to another can affect clarity of cell phone communications due to changes in the background noise, in addition to the loss of privacy that follows the changes in the background noise, which can reveal the user&#39;s location. For example, as the cell phone user moves from the office environment to attend a meeting, the background noise continues to change from office noise to elevator noise, car noise, traffic noise, background conversation noise, etc. This continuous change in background noise not only affects the user and listening party&#39;s clarity of communication, but also it is an intrusion into the user&#39;s privacy who may not wish his location or travel path to be recognized or made known to the listening party. 
         [0005]    Similar to audio communications, a video communication device user may also wish to obstruct his background view during video communication for privacy or aesthetic reasons. However, existing communication devices offer no choice to the users who do not wish to reveal their locations or background environment, other than the alternative of limiting the users to placing the calls from fixed locations, which alternative, of course, takes away from the key advantage of the mobility advantage that is offered by mobile communication devices. 
         [0006]    Accordingly, there is a need in the art for systems and methods that can overcome the above drawbacks of the existing communication devices, and that can further enhance personal communications, as described below. 
       SUMMARY OF THE INVENTION 
       [0007]    There are provided systems and methods for enhancing personal communications, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims. 
     
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0008]    The features and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, wherein: 
           [0009]      FIG. 1  is a block diagram illustrating various components of a communication device, according to one embodiment of the present invention; 
           [0010]      FIG. 2  is a block diagram illustrating various components of a communication device, according to another embodiment of the present invention; 
           [0011]      FIG. 3  is a block diagram illustrating various components of a communication device, according to yet another embodiment of the present invention; 
           [0012]      FIG. 4  is a block diagram illustrating various components of a communication system, according to one embodiment of the present invention; and 
           [0013]      FIG. 5  is a flow diagram illustrating a communication process, according to one embodiment of the present invention. 
       
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
       [0014]    Although the invention is described with respect to specific embodiments, the principles of the invention, as defined by the claims appended herein, can obviously be applied beyond the specifically described embodiments of the invention described herein. Moreover, in the description of the present invention, certain details have been left out in order to not obscure the inventive aspects of the invention. The details left out are within the knowledge of a person of ordinary skill in the art. 
         [0015]    The drawings in the present application and their accompanying detailed description are directed to merely example embodiments of the invention. To maintain brevity, other embodiments of the invention which use the principles of the present invention are not specifically described in the present application and are not specifically illustrated by the present drawings. It should be borne in mind that, unless noted otherwise, like or corresponding elements among the figures may be indicated by like or corresponding reference numerals. 
         [0016]      FIG. 1  is a block diagram illustrating various components of communication device  100 , such as a phone, according to one embodiment of the present invention, which operate under the control of controller  140 . As shown, communication device  100  includes microphone or receiving element  102  for receiving an audio signal including the user&#39;s speech and background noise. Communication device  100  further includes analog-to-digital converter (ADC)  105  that receives the audio signal from microphone  102  in analog form and generates digital real audio samples or real communication data. In addition, communication device  100  includes background effects data storage  110  for storing background effects data. Background effects data storage  110  may include various digitized audio clips that can be selected by the user for enhancing personal communication. For example, background effects data storage  110  may include digitized audio clips having romantic or soothing music, sounds of nature, heavy traffic, auditorium, party hall, machinery, noisy airport or market place, and so on. 
         [0017]    Also, communication device  100  includes mixer  115 , which can be a digital signal processor (DSP), for mixing a selected digitized audio clip from background effects data storage  110  with digital real audio samples from ADC  105 . For example, the user of communication device  100  may be travelling from his office to the airport while on the phone and decide to have an unchanging background noise by selecting a soothing music to be played in the background. In such event, mixer  115  mixes the selected soothing music with the digital real audio samples from ADC  105  using mixing methods that are well known in the art, such that, for example, the selected soothing music is at a lower audible level than the digital real audio samples from ADC  105 . As shown in  FIG. 1 , mixer  115  outputs the mixed digitized audio signal to coder  120  for processing, packetizing and transmitting over a communication line to the remote user or the listening party. 
         [0018]    In one embodiment, communication device  100  optionally includes mixer  130  for mixing background effects data with the digital real audio samples from decoder  125  that receives packetized audio information over a communication line from the remote user and depacketizes the packetized audio information. Mixer  130  outputs the mixed digitized audio signal to digital-to-analog converter (DAC)  135  for generating an audio signal for playing by speaker or transmitting element  132 . As a result of mixing background effects data with the digital real audio samples from decoder  125 , the user of communication device  100  may also hear his selected soothing music in the background to have a sense for what the remote user or the listening party is hearing. In such embodiment, the user of communication device  100  may be able to selectively enable or disable mixer  115  and/or mixer  130 . 
         [0019]    In another embodiment of the present invention (not shown), communication device  100  may also include a video camera (or a receiving element) for capturing the user and his environment. Further, background effects data storage  110  may also include digitized image or video clips having romantic or soothing scenery, scenes of nature, sports, cartoons, airport or market place, and so on. In addition, in such embodiment, mixer  115  and mixer  130  can also mix a user selected digitized image or video clip with real digital samples (or real communication data) from the video camera for displaying the mixed clip on a display (or a transmitting element) of communication device  100  and/or a display of a remote communication device, respectively. Therefore, the invention of the present application is not limited to the particular embodiments described herein, but is capable of many rearrangements, modifications, and substitutions without departing from the scope of the invention. 
         [0020]    Turning to  FIG. 2 , it illustrates another embodiment of the present invention, where like or corresponding elements among  FIGS. 1 and 2  are indicated by like or corresponding reference numerals. As shown in  FIG. 2 , communication device  200  includes analog-to-digital converter (ADC)  212  for converting a user-selected analog audio (or video) clip stored in background effects data storage  210  to digital samples for use by mixer  115  (or mixer  135 ) to generate a mixed signal. This embodiment provides additional flexibility to users that may wish to download regular analog audio (or video) clip from the Internet for storage in background effects data storage  210  and use as background effects by communication device  100 . 
         [0021]      FIG. 3  illustrates yet another embodiment of the present invention, where like or corresponding elements among  FIGS. 1 and 3  are indicated by like or corresponding reference numerals. As shown in  FIG. 3 , communication device  300  includes signal pre-processor  307 , which receives digitized samples from ADC  105  and can reduce speech (or video) artifacts or background noise in the digitized samples. Speech pre-processing methods, such as background noise reduction, are known in the art. In one embodiment, signal pre-processor  307  may also perform voice activity detection using the digitized samples prior to mixing the digitized samples with background effects data. In addition, signal pre-processor  307  may determine the desirable coding rate for coder  320  prior to mixing the digitized samples with background effects data. 
         [0022]      FIG. 4  illustrates various components of communication system  400 , according to another embodiment of the present application, which operate under the control of controller  440 . In this embodiment, mixer  115 , background effects data storage  110  and mixer  130  may be placed at the communication gateway or the telephone central office, such that the background sound effects can be mixed at the communication gateway or the telephone central office, e.g. by a service provider, rather than communication device  100 . As shown in  FIG. 4 , communication system  400  includes decoder  410  for depacketizing packetized real communication data received over a first communication line from communication device  405 , and for retrieving digitized real communication data. Further, communication system  400  includes background effects data storage  410  similar to background effects data storage  110  or  210 . Communication system  400  also includes mixer  415  for mixing the digitized real communication data with the background effects data from background effects data storage  410  to generate enhanced data. Communication system  400  further includes coder  420  for packetizing the enhanced data to generate packetized data and for transmitting the packetized data over a second communication line to network  450 . 
         [0023]    In one embodiment, communication system  400  may also include an analog-to-digital converter (ADC) (not shown), which is configured to receive the background effects data and generate digitized effects data for use by mixer  415 , similar to ADC  212  in  FIG. 2 . 
         [0024]    As further shown in  FIG. 4 , communication system  400  may also include decoder  425  for depacketizing packetized real communication data received over the second communication line from network  450 , and for retrieving digitized real communication data. Further, communication system  400  also includes mixer  430  for mixing the digitized real communication data with the background effects data from background effects data storage  410  to generate enhanced data. Communication system  400  also includes coder  435  for packetizing the enhanced data to generate packetized data and for transmitting the packetized data over the first communication line to communication device  405 . 
         [0025]    Now, with reference to  FIG. 5 , background effects mixing method  500  is illustrated, according to one embodiment of the present invention. As shown, background effects mixing method  500  begins at step  505 , where user&#39;s speech signal is received by microphone  102 . Next, at step  510 , user&#39;s speech signal is processed by ADC  105  to digitize user&#39;s speech signal and generate digitized real audio samples. As discussion above, background effects mixing method  500  may also include applying background noise reduction to digitized speech signal using signal pre-processor  307 , at step  515 . Further, at step  520 , background effects audio data is retrieved from memory. If background effects audio data is not stored in digitized form in memory, at step  525 , ADC  212  is used to generate digitized background effects. Next, at step  530 , digitized real audio samples are mixed with digitized background effects to enhance personal communications. Thereafter, at step  535 , the mixed digitized audio data may be coded based on a speech coding scheme and is packetized, and at step  540 , the packetized data is transmitted to a remote communication device via a communication line. As discussed above, background effects data is not limited to audio signals, and a method similar to background effects mixing method  500  described above can be applied by the communication device to mix image or video clips with digitized real image or video captured by a camera of the communication device. In addition, background effects mixing method  500  may also be performed at a gateway device or a telephone central office. In one embodiment, the user may select the background effects prior to establishing a call or while the call is in progress, and may also select the background effects to be generated uni-directionally (to remote or to user) or bi-directionally (to remote and to user) from a database available in background effects data storage  110 . 
         [0026]    Thus, the above-described embodiments of the invention offer many advantages, such as simulation of an ambience by a user over mobile or telephone conversation or video to suit her mood; faking her whereabouts by generating background effects other than those in her present environment; or selecting background effects for her perception and/or remote user&#39;s perception. 
         [0027]    From the above description of the invention it is manifest that various techniques can be used for implementing the concepts of the present invention without departing from its scope. Moreover, while the invention has been described with specific reference to certain embodiments, a person of ordinary skill in the art would recognize that changes can be made in form and detail without departing from the spirit and the scope of the invention. For example, it is contemplated that the circuitry disclosed herein can be implemented in software, or vice versa. The described embodiments are to be considered in all respects as illustrative and not restrictive. It should also be understood that the invention is not limited to the particular embodiments described herein, but is capable of many rearrangements, modifications, and substitutions without departing from the scope of the invention.