Patent Publication Number: US-2011051017-A1

Title: Method for processing signal, transmitting apparatus, receiving apparatus and display apparatus

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     Pursuant to 35 U.S.C. §119(a), this application claims the benefit of earlier filing date and right of priority to Korean Application No. 10-2009-0082198, filed on Sep. 1, 2009, the contents of which are hereby incorporated by reference herein in their entirety. 
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to a method and an apparatus for receiving a signal and, more particularly, to a method and an apparatus for transmitting and receiving a media signal by using wireless communication. 
     2. Discussion of the Related Art 
     In general, a display apparatus includes a receiving unit that receives a media signal including video and audio from a broadcasting system, a cable system, and other external apparatuses (VCR, DVD, etc.) and processes and outputs the received media signal and a display unit that displays the processed video of the media signal on a screen. 
     Meanwhile, the receiving unit and the display unit may be individually separated from each other. In recent years, a wireless type display system has been provided, which transmits a media signal received by using an additional receiver to the display apparatus through wireless communication and displays the transmitted media signal on the display. 
     SUMMARY OF THE INVENTION 
     An object of the present invention is to provide a method for processing a signal capable of efficiently managing signals transmitted and received by using a wireless network, a transmitting apparatus, a receiving apparatus and display apparatus thereof. 
     According to an embodiment of the present invention, there is a method for processing a signal in a receiving apparatus connected with a transmitting apparatus through a wireless network includes: receiving the signal; receiving a request for storing the received signal; and transmitting and storing the received signal to and in the transmitting apparatus. 
     A receiving apparatus according to the embodiment of the present invention may be implemented to perform the above-described signal processing method. 
     According to another embodiment of the present invention, there is a method for processing a signal in a transmitting apparatus connected with a receiving apparatus through a wireless network includes: receiving the signal; verifying whether or not an error occurs in the wireless network; storing the received signal when the error occurs in the wireless network; and transmitting the stored signal to the receiving apparatus after the error of the wireless network is restored. 
     A transmitting apparatus according to the embodiment of the present invention may be implemented to perform the above-described signal processing method. 
     Also disclosed is a method for controllably storing data in a remote storage device by a first device, the method including: wirelessly receiving the data by the first device and via a wireless network; wirelessly receiving in the first device a request to store the data from a remote control device; determining by the first device whether or not the first device is capable of storing the data; and if the first device is determined not to be capable of storing the data, wirelessly transmitting the data to the remote storage device via the wireless network, where the first device is one of an image display device and a set-top box configured to supply a signal to the image display device. 
     Also disclosed is an information processing apparatus configured to controllably store data in a remote storage device, and including: a remote controller interface unit; a wireless transceiver; and a controller operatively connected to the remote controller interface and the wireless transceiver, the controller configured to wirelessly receive the data via a wireless network, wirelessly receive a request to store the data from a remote control device via the remote controller interface unit, determine whether or not the information processing apparatus is capable of storing the data, and, if the information processing apparatus is determined not to be capable of storing the data, wirelessly transmit the data to the remote storage device via the wireless network, where the information processing apparatus is one of an image display device and a set-top box configured to supply a signal to the image display device. 
     Meanwhile, a display apparatus according to the embodiment of the present invention may include the receiving apparatus. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other aspects, features, and advantages of the present invention will become more apparent upon consideration of the following description of preferred embodiments, taken in conjunction with the accompanying drawing figures. 
         FIG. 1  is a block diagram schematically illustrating a configuration of a transmitting/receiving system. 
         FIG. 2  is a block diagram illustrating a configuration of a transmitting/receiving system according to a first embodiment of the present invention. 
         FIG. 3  is a block diagram illustrating a configuration of a transmitting apparatus according to an embodiment of the present invention. 
         FIG. 4  is a block diagram illustrating a configuration of a receiving apparatus according to an embodiment of the present invention. 
         FIG. 5  is a flowchart illustrating a method for processing a signal according to a first embodiment of the present invention. 
         FIG. 6  is a flowchart illustrating a method for processing a signal according to a second embodiment of the present invention. 
         FIG. 7  is a block diagram illustrating a configuration of a transmitting/receiving system according to a second embodiment of the present invention. 
         FIG. 8  is a block diagram illustrating a configuration of a transmitting/receiving system according to a third embodiment of the present invention. 
     
    
    
     DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS 
     Hereinafter, a method for processing a signal, a transmitting apparatus, a receiving apparatus and a display apparatus thereof according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. 
       FIG. 1  is a block diagram illustrating an embodiment of a configuration of a transmitting/receiving system. The transmitting/receiving system may include a transmitting apparatus  100  and a receiving apparatus  200 . 
     Referring to  FIG. 1 , the transmitting apparatus  100  and the receiving apparatus  200  are connected with each other through a wireless network. The transmitting apparatus  100  receives the media signal including images from receives a media signal from a broadcasting system, a cable system, or external apparatuses and converts the received media signal into data of a wireless transmittable format and wirelessly transmits the data. 
     The receiving apparatus  200  receives and processes data wirelessly transmitted from the transmitting apparatus  100 . For this, one or more wireless communication standards for wirelessly transmitting and receiving data may be previously established between the transmitting apparatus  100  and the receiving apparatus  200 . 
     Meanwhile, the transmitting apparatus  100  includes various input terminals such as a high-definition multimedia interface (HDMI) terminal connected with an antenna or external apparatuses, a universal serial bus (USB) terminal, a component terminal, an external input terminal, an RGB terminal, an antenna cable terminal, etc. and can receive the signal by using the input terminals. 
     The transmitting apparatus  100  may be a set-top box (STB) that receives the media signal by using a wired or wireless network and converts and wirelessly transmits the received media signal to the receiving apparatus  200 . 
     However, the transmitting apparatus  100  according to the embodiment of the present invention is not limited to the set-top box (STB) and may include all kinds of apparatuses that can receive the media signal transmitted from the outside and wirelessly transmit the received media signal to the receiving apparatus  200 . 
     Further, the transmitting apparatus  100  according to the embodiment of the present invention may be implemented by being provided in a computer or a portal terminal such as a cellular phone, etc. 
     Further, the receiving apparatus  200  receives and processes the data wirelessly transmitted from the transmitting apparatus  100  and thereafter, can transmit the data to the external apparatus that outputs the video or audio included in the media signal. 
     For example, the receiving apparatus  200  can convert the video signal wirelessly transmitted from the transmitting apparatus  100  into a displayable format and output the video signal on a display apparatus (not shown). More specifically, when the video signal wirelessly transmitted from the transmitting apparatus  100  is encoded by a coding scheme such as an MPEG, etc., the receiving apparatus  200  decodes the received video signal to output the decoded video signal to the display apparatus (not shown). 
     According to the embodiment of the present invention, the transmitting apparatus  100  and the receiving apparatus  200  can transmit and receive the media signal by using various wireless communication standards, for example, wireless communication standards such as wireless HD (WiHD), wireless home digital interface (WHDi), wireless Lan (WiFi), etc. 
     The WiHD uses a frequency band of approximately 60 GHz and can transmit and receive data at transmission rate of approximately 4 Gbps to thereby transmit HD video data of 1080p (1920×1080) without compression. However, the WiHD uses high frequency of 60 GHz-band, such that a data transmitting/receiving distance is approximately 10 m and the transmission/reception quality may be easily influenced by obstacles in the vicinity of an installation space. 
     The WHDi can transmit and receive the data at transmission rate of approximately 1.8 Gbps by using a frequency band of approximately 5 GHz. Further, the WHDi uses a comparatively low high frequency band of 5 GHz, such that the data transmitting/receiving distance is approximately 30 m and the transmission/reception quality may not greatly be influenced by the obstacles in the vicinity of the installation space. Meanwhile, when the HD video data of 1080p (1920×1080) is transmitted by using the WHDi at the transmission rate of approximately 1.8 Gbps, the transmitting apparatus  100  needs to partially compress and transmit the HD video data. 
     Further, the WiFi can transmit and receive the data at transmission rate of approximately 54 Mbp by using a frequency band of approximately 2.4 GHz. The WiFi uses a comparatively low high frequency band of 2.4 GHz, such that the data transmitting/receiving distance is approximately 50 to 200 m and the transmission/reception quality may not almost be influenced by the obstacles in the vicinity of the installation space. Meanwhile, when the HD video data of 1080p (1920×1080) is transmitted by using the WiFi at the low transmission rate of approximately 54 Mbp, the transmitting apparatus  100  needs to compress and transmit the HD video data and as a result, the image quality of the video signal received from the receiving apparatus  200  may be deteriorated. 
     Meanwhile, the transmitting apparatus  100  and the receiving apparatus  200  can wirelessly transmit and receive the data depending the media signal by using various short-range wireless communication standards, for example, communication standards such as Bluetooth, ZigBee, or binary code division multiple access (CDMA), etc. in addition to the above-mentioned wireless communication standards. 
     The transmitting apparatus  100  and the receiving apparatus  200  can transmit and receive video and audio data by using any one of various wireless communication standards. 
     Meanwhile, the transmitting apparatus  100  and the receiving apparatus  200  may transmit and receive the video and audio data by using two or more wireless communication standards regarding performance, installation environment, video resolution, etc. 
       FIG. 2  is a block diagram illustrating a configuration of a transmitting/receiving system according to a first embodiment of the present invention. The system may include a transmitting apparatus  100 , a receiving apparatus  200 , and external apparatuses  300  and  310 . The same components among the components of the transmitting/receiving system shown in  FIG. 2  as the components described by referring to  FIG. 1  will not be described below. 
     Referring to  FIG. 2 , the transmitting apparatus  100  and the receiving apparatus  200  can transmit and receive the data by using a wireless communication standard, i.e., WiHD, WHDi, WiFi, or the like. 
     The transmitting apparatus  100  may be connected to the first external apparatus  300 . The transmitting apparatus  100  may receive the video signal and the audio signal from the first external apparatus  300 . For this, the transmitting apparatus  100  may include input/output terminals such as an HDMI, a USB, a component, an RGB, etc. for transmitting and receiving the data to and from the first external apparatus  300 . 
     Meanwhile, the receiving apparatus  200  may also be connected to the second external apparatus  310 . The receiving apparatus  200  may receive the video signal and the audio signal from the second external apparatus  310 . For this, the receiving apparatus  200  may include the input/output terminals for connecting the second external apparatus  310 . 
     In  FIG. 2 , one external apparatus is connected to each of the transmitting apparatus  100  and the receiving apparatus  200 , but the present invention is not limited thereto, that is, two or more external apparatuses may be connected to each of the transmitting apparatus  100  and the receiving apparatus  200 . 
     Further, the external apparatuses  300  and  310  connected to the transmitting apparatus  100  or the receiving apparatus  200  may be various apparatuses including a video playing device such as a DVD player, a Dvix player or a blue-ray player, or the like, a set-top box such as an IPTV set-top box, a cable set-top box, a satellite set-top box, or the like, a PC, a game machine, a home theater, a portable terminal, a hard disk (HDD) recorder, etc. 
     However, the external apparatuses  300  and  310  according to the embodiment of the present invention is not limited to the above-mentioned apparatuses and may include various apparatuses that are connected to the transmitting device  100  or the receiving apparatus  200  to output the media signal such as the video signal. 
     According to the embodiment of the present invention, at least one of the transmitting apparatus  100  and the receiving apparatus  200  may include a storage medium (not shown) which can store an inputted signal or store the signal by being connected with an external storage medium (not shown). 
     For example, the transmitting apparatus  100  may receive the signal, more specifically, the video signal or the audio signal from the first external apparatus  100  and wirelessly transmit the inputted signal to the receiving apparatus  200 . Meanwhile, the receiving apparatus  200  may store the video signal or the audio signal wirelessly transmitted from the transmitting apparatus  100  in the storage medium (not shown) provided therein or output and store the video signal or the audio signal to and in the storage medium (not shown) connected to the outside. 
     As described above, the video signal or the audio signal stored in the receiving apparatus  200  or the external storage medium (not shown) may be read from the storage medium (not shown) at a timing which a user desires, such that the video corresponding to the video signal may be displayed or the audio corresponding to the audio signal may be outputted. 
     As a result, the signal outputted from the external apparatus that cannot be directly stored in the receiving apparatus  200  due to a limitation in the installation space, for example, the first external apparatus  300  connected to the transmitting apparatus  100  that is most distant may also be transmitted by using the wireless network connected with the transmitting apparatus  100  and stored in the storage medium (not shown) of the receiving apparatus  200 . 
     Meanwhile, the receiving apparatus  200  may receive the video signal or the audio signal from the connected second external apparatus  310  and may wirelessly transmit the inputted signal to the transmitting apparatus  100 . The transmitting apparatus  100  may store the video signal or the audio signal wirelessly transmitted from the receiving apparatus  200  in the storage medium (not shown) provided therein or output and store the video signal or the audio signal to and in the storage medium (not shown) connected to the outside. 
     As described above, the video signal or the audio signal stored in the transmitting apparatus  100  or the external storage medium (not shown) may be read from the storage medium (not shown) at a timing which a user desires, such that the video signal or the audio signal may be transmitted to the receiving apparatus  200  or another external apparatus. 
     As a result, even when there is no storage medium that can store the signal inside or outside of the receiving apparatus  200 , the signal inputted into the receiving apparatus  200 , for example, the signal inputted from the second external apparatus  310  may be wirelessly transmitted to and stored in the transmitting apparatus  100 . 
     That is, according to the embodiment of the present invention, it is possible to store and manage the video signal or the audio signal by efficiently the storage medium (not shown) provided in or connected to any one of the transmitting apparatus  100  and the receiving apparatus  200  by using the wireless network between the transmitting apparatus  100  and the receiving apparatus  200 . 
     Meanwhile, an example of the storage medium may include an optical recording medium capable of writing or reading data by using light, a magnetic recording medium capable of writing or reading data by using a magnetic element, a non-volatile memory capable of writing or reading data by using a semiconductor chip, etc. 
     For example, the storage medium may include a DVD R/W and a CD R/W which is the optical recording medium, a magnetic tape or an HDD which is the magnetic recording medium, a compact flash card (CF card), a smart card, a portable memory stick, a multimedia card, a secure digital card (SD card), a USB memory, etc. which are the non-volatile memory. 
     Further, the storage medium is not limited to the media and may be implemented by various media that are connected with the transmitting apparatus  100  or the receiving apparatus  200  to receive and store the signal by receiving the signal from the transmitting apparatus  100  or the receiving apparatus  200 . 
     Further, the storage medium may be implemented by an apparatus including the media. For example, the storage medium may be implemented by an external apparatus such as a PMP, a PDA, a cellular phone, a smart phone, etc., which can decode the media signal to output the video or audio signal. 
       FIG. 3  is a block diagram illustrating a configuration of a transmitting apparatus according to an embodiment of the present invention. The transmitting apparatus  100  may include a first interface unit  110 , and a first signal processing unit  120 , a first RF transmitting/receiving unit  130 . The same components among the components of the transmitting apparatus  100  shown in  FIG. 3  as the components described by referring to  FIGS. 1 and 2  will not be described below. 
     Referring to  FIG. 3 , the first interface unit  110  is connected with the first external apparatus  300  to receive the signal. For this, the first interface unit  110  may include input terminals such as an HDMI, a USB, a component, an RGB, etc. for connecting the first external apparatus  300 . 
     Meanwhile, the first interface unit  110  may be connected with a first storage medium  310 , and may output and store the signal inputted into the transmitting apparatus  100 , for example, the video signal or the audio signal to and in the first storage medium  301 . Further, the first storage medium  301  may also be connected by using the input ports provided in the first interface unit  110 . 
     For example, according to a user request, the first interface unit  110  may store the signals wirelessly transmitted from the receiving apparatus  200  or the other external apparatuses through the first RF transmitting/receiving unit  130  in the first storage medium  301 . Alternately, the first interface unit  110  may store the signal inputted form the first external apparatus  300  in the first storage medium  301 . 
     The first signal processing unit  120  may convert the signals inputted from the first external apparatus  300 , for example, the video signal and the audio signal into data of a wirelessly transmittable format in accordance with a predetermined wireless communication standard and output the converted data. 
     For example, when the signal received from the first external apparatus  300  is encoded in accordance with a coding scheme such as an MPEG, etc., the first signal processing unit  120  may decode and output the received video and audio signals. 
     Meanwhile, the first signal processing unit  120  may be converted to data of a storable format so as to be stored in the first storage medium  301  and the converted data may be output to the first interface unit  110 . For example, the first signal processing unit  120  may convert the outputted from the first RF transmitting/receiving unit  130  to the data of a storable transport stream (TP) format and add and output header information to the converted data. 
     The first RF transmitting/receiving unit  130  wirelessly transmits the signal outputted from the first signal processing unit  120  to the receiving apparatus  200 . For this, the first RF transmitting/receiving unit  130  may include an antenna (not shown) and a converter (not shown), i.e., an up-converter and a down-converter. 
     Meanwhile, according to the embodiment of the present invention, the first RF transmitting/receiving unit  130  may receive the signal to be stored in the transmitting apparatus  100 , more specifically, the first storage medium  301  connected to the transmitting apparatus  100  from the receiving apparatus  200 . 
     In the above description, referring to  FIG. 3 , the embodiment of the present invention is described by using the case in which the transmitting apparatus  100  is connected with the external first storage medium  301  as an example, but the present invention is not limited thereto, that is, the first storage medium  301  may be provided in the transmitting apparatus  100 . 
     Meanwhile, when no storage medium is provided in the transmitting apparatus  100 , a function to store the signal, i.e., a function of a digital video recorder (DVR) may be activated only in a case in which the external first storage medium  301  shown in  FIG. 3  is connected through the first interface unit  110 . 
       FIG. 4  is a block diagram illustrating a configuration of a receiving apparatus according to an embodiment of the present invention. The receiving apparatus  200  may include a second RF transmitting/receiving unit  210 , a second signal processing unit  220 , and a second interface unit  230 . 
     Referring to  FIG. 4 , the second interface unit  230  may be connected with a second external apparatus  310  and a second storage medium  311  by using the input terminals such as the HDMI, the USB, the component, the RGB, etc. 
     Meanwhile, the second interface unit  230  may output and store the input signal inputted into the receiving apparatus  200 , i.e., the video signal or the audio signal to and in the second storage medium  311 . 
     For example, according to the user request, the second interface unit  230  may store signals inputted from the second external apparatus  310  through the second interface unit  230  or signals wirelessly transmitted from the transmitting apparatus  100  or the other external apparatuses through the second RF transmitting/receiving unit  210  in the second storage medium  311 . 
     The second signal processing unit  220  may convert the signals inputted from the second external apparatus  310 , for example, the video signal and the audio signal into the data of the wirelessly transmittable format in accordance with a predetermined wireless communication standard and output the converted data. 
     Meanwhile, when the signal received from the transmitting apparatus  100  or the second external apparatus  310  is encoded in accordance with a coding scheme such as an MPEG, etc., the second signal processing unit  220  may decode and output the received video and audio signals. 
     Meanwhile, the second signal processing unit  220  may convert a signal to be stored in the second storage medium  301  to the data of the storable format and output the converted data to the second interface unit  230 . For example, the second signal processing unit  220  may convert the signal received from the transmitting apparatus  100  or the second external apparatus  310  to the data of the storable transport stream (TP) format and add and output the header information to the converted data. 
     The second RF transmitting/receiving unit  210  may wirelessly receive the media signal, for example, the video signal and the audio signal from the transmitting apparatus  100  and for this, may include an antenna (not shown) and a converter (not shown), more specifically, an up-converter and a down-converter. 
     Further, the receiving apparatus  200  may further include a display unit (not shown) for displaying the video signal received from the outside through the second RF transmitting/receiving unit  210  or the second interface unit  230 . Alternately, the receiving apparatus  200  may output the received video signal to an external display apparatus (not shown) connected through the second interface unit  230 . 
     According to the embodiment of the present invention, the second RF transmitting/receiving unit  210  may receive the signal to be stored in the receiving apparatus  200 , more specifically, the second storage medium  311  connected to the receiving apparatus  200  from the transmitting apparatus  100 . 
     Meanwhile, the signal to be stored, which is received from the transmitting apparatus  100  may be the video signal or the audio signal that is outputted from the first external apparatus  300  connected to the transmitting apparatus  100 . 
     The signal received from the second RF transmitting/receiving unit  210  is processed by the second signal processing unit  220 . Thereafter, the signal is inputted into the second interface unit  230  and may be outputted to and stored in the second storage medium through the second interface unit  230 . 
     Meanwhile, the second RF transmitting/receiving unit  210  may wirelessly transmit the signal inputted from the second external apparatus  310  connected to the receiving apparatus  200  to the transmitting apparatus  100 . For example, when the second storage medium  311  is not connected to the receiving apparatus  200 , the second RF transmitting/receiving unit  210  may transmit the inputted signal to the transmitting apparatus  100  and store the signal in the first storage medium  301  that is provided in or connected to the transmitting apparatus  100 . 
     In the above description, referring to  FIG. 4 , the embodiment of the present invention is described by using the case in which the receiving apparatus  200  is connected with the external second storage medium  311  as an example, but the present invention is not limited thereto, that is, the second storage medium  311  may be provided in the receiving apparatus  200 . 
     Meanwhile, when no storage medium is provided in the receiving apparatus  200 , the function of the DVR may be activated only in a case in which the external second storage medium  311  shown in  FIG. 4  is connected through the second interface unit  230 . 
     When the DVR function of the receiving apparatus  200  is not activated, the method verifies whether or not the storage medium is provided in or connected to the transmitting apparatus  100 . At this time, when the storage medium is preset in the transmitting apparatus  100 , the signal to be stored may be transmitted to the transmitting apparatus  100  by using the wireless network such as WiHD, WHDi, WiFi, or the like. 
     Hereinafter, a method for processing a signal according to an embodiment of the present invention will be described in more detail with reference to  FIGS. 5 to 8 . 
       FIG. 5  is a flowchart illustrating a method for processing a signal according to a first embodiment of the present invention and the method shown in  FIG. 5  will be described by combining the receiving apparatus  200  shown in  FIG. 4 . 
     The second interface unit  230  of the receiving apparatus  200  receives the signal from a connected external apparatus, that is, the second external apparatus  310  (step  400 ). For example, depending on user&#39; external input using a user input unit (not shown) provided in the receiving apparatus  200  and user&#39;s selection of contents, the second interface unit  230  may receive a video signal and an audio signal corresponding to the selected contents from the second external apparatus  310 . 
     When the receiving apparatus  200  receives a request for storing the signal inputted from the second external apparatus  310  (step  410 ) from a user, the method verifies whether or not a storage medium provided in or connected to the receiving apparatus  200  is present (step  420 ). 
     For example, the user may request storing the signal inputted from the second external apparatus  310  by using the user input unit (not shown). In this case, it may be verified whether or not the second storage medium  311  is connected to the second interface unit  230 . 
     According to the verification result, when the storage medium is present in the receiving apparatus  200 , the signal inputted from the second external apparatus  310  is outputted to and stored in the second storage medium  311  (step  430 ). 
     For example, when the second storage medium  311  is connected to the second interface unit  230 , the signal inputted from the second external apparatus  310  is outputted to the second signal processing unit  220  and is converted to a format storable in the second storage medium  311  and thereafter, may be outputted to the second storage medium  311  through the second interface unit  230 . 
     Meanwhile, when no storage medium is present in the receiving apparatus  200 , the second RF transmitting/receiving unit  210  wireless transmits the signal inputted from the second external apparatus  310  to the transmitting apparatus  100  (step  440 ). 
     For example, when the second storage medium  311  is not connected to the second interface unit  230 , the signal inputted from the second external apparatus  310  is outputted to the second RF transmitting/receiving unit  210  through the second signal processing unit  220  and the second RF transmitting/receiving unit  210  may transmit the inputted signal to the transmitting apparatus  100  and store the transmitted signal in the storage medium that is provided in or connected to the transmitting apparatus  100 . 
     According to yet another embodiment of the present invention, even when the second storage medium  311  is connected to the receiving apparatus  200 , the system verifies a capacity of data that can be presently stored in the second storage medium  311 . At this time, when the storable capacity is smaller than a reference value, the signal inputted from the second external apparatus  310  may be wirelessly transmitted to and stored in the transmitting apparatus  100 . 
     By performing the signal processing method in the receiving apparatus  200 , even when the storage medium is provided in or connected to only any one of the receiving apparatus  200  and the transmitting apparatus  100 , the signal inputted into the receiving apparatus  200  from the second external apparatus  310  can be easily stored. 
       FIG. 6  is a flowchart illustrating a method for processing a signal according to a second embodiment of the present invention and the method shown in  FIG. 6  will be described by combining the transmitting apparatus  100  shown in  FIG. 3 . 
     The first interface unit  110  of the transmitting apparatus  100  receives the signal from a connected external apparatus, that is, the first external apparatus  300  (step  500 ) and the first RF transmitting/receiving unit  130  transmits the inputted signal to the receiving apparatus  200  (step  520 ). 
     For example, depending on user&#39; external input using the user input unit (not shown) provided in the transmitting apparatus  10  or the receiving apparatus  200  and user&#39;s selection of contents, the first interface unit  110  may receive a video signal and an audio signal corresponding to the selected contents from the first external apparatus  300 . 
     The first signal processing unit  120  converts and outputs the signal outputted from the first interface unit  110  to data of a wirelessly transmittable format, for example, wireless data according to the wireless communication standard such as WiHD, WHDi, WiFi, or the like and the first RF transmitting and receiving unit  130  may wirelessly transmit the signal inputted from the first signal processing unit  120  to the receiving apparatus  200 . 
     Meanwhile, while the signal is transmitted/received by using a wireless network between the transmitting apparatus  100  and the receiving apparatus  200 , wireless communication performance is deteriorated due to external environments such as an appearance of an obstacle, interference with other signals, etc., such that an error may occur in the wireless network. 
     As described above, when the error occurs in the wireless network, the signal is not received in the receiving apparatus  200  or the error may occur in the signal received in the receiving apparatus  200 . In this case, an image corresponding to the signal received in the receiving apparatus  200  may not be displayed or image quality may be deteriorated. 
     According to the embodiment of the present invention, while the first RF transmitting/receiving unit  130  transmits the signal to the receiving apparatus  200 , the method verifies whether or not the error occurs in the wireless network between the transmitting apparatus  100  and the receiving apparatus  200  (step  510 ). 
     For example, the method can verify whether or not the error occurs in the wireless network at a predetermined cycle and by using signal reception sensitivity measured in the receiving apparatus  200 , more specifically, a received signal strength indicator (RSSI) or a packet error rate (PER). 
     When no error occurs in the wireless network, the first RF transmitting/receiving unit  130  continuously transmits the signal inputted from the first external apparatus  300  to the receiving apparatus  200  (step  520 ). 
     Further, when the error occurs in the wireless network, the first interface unit  110  stores the signal inputted from the first external apparatus  300  in the first storage medium  301  (step  530 ). 
     According to yet another embodiment of the present invention, even when no occurs in the wireless network, the signal inputted from the first external apparatus  300  may be stored in the first storage medium  301  in real time. 
     Meanwhile, when the error occurs in the wireless network, the transmitting apparatus  100 , more specifically, the first RF transmitting/receiving unit  130  may stop transmitting the signal to the receiving apparatus  200 . In this case, the receiving apparatus  200  may report the user that signal reception may be stopped due to the error of the wireless network by using a display unit (not shown), etc. provided therein. 
     Thereafter, the method verifies whether or not the error of the wireless network between the transmitting apparatus  100  and the receiving apparatus  200  is restored (step  540 ). 
     For example, the method can verify whether or not the error of the wireless network is restored at a predetermined cycle after the error occurs. 
     When the error of the wireless network is restored, the first RF transmitting/receiving unit  130  receives the signal stored in the first storage medium  301  and transmits the received signal to the receiving apparatus  200  (step  550 ). 
     More specifically, at step  550 , the first interface unit  110  receives the signal stored in the first storage medium  301  and converts the received signal to the wirelessly transmittable format through the first signal processing unit  120  and thereafter, may be wirelessly transmitted to the receiving apparatus  200  through the first RF transmitting/receiving unit  130 . 
     At the timing when the error of the wireless network is restored, the receiving apparatus  200  may report the user that error of the wireless network is restored by using the display unit (not shown) provided therein. 
     Further, the receiving apparatus  200  may select whether to receive the signal from the timing when the error occurs again or to receive the signal presently outputted from the first external apparatus  300  as it is by using the use input unit (not shown) provided therein. 
     For example, when the user selects receiving the signal again from the timing when the error occurs, the first RF transmitting/receiving unit  130  receives the video signal stored in the first storage medium  301  and transmits the received video signal to the receiving apparatus  200 , such that the user can watch the video again from the timing when the error occurs in the network. 
     Meanwhile, when the user selects receiving the signal outputted from the first external apparatus  300  as it is, the first RF transmitting/receiving unit  130  receives the signal outputted from the first external apparatus  300  and transmits the received signal to the receiving apparatus  200 . At this time, the signal stored in the first storage medium  301  may be deleted. 
       FIG. 7  is a block diagram illustrating a configuration of a transmitting/receiving system according to a second embodiment of the present invention. The same operations among the operations of the transmitting/receiving system shown in  FIG. 7  as the operations described by referring to  FIGS. 1 to 6  will not be described below. 
     Referring to  FIG. 7 , the transmitting apparatus  100  may be connected with the plurality of receiving apparatuses  200  and  210  through the wireless network. That is, the transmitting apparatus  100  converts the media signal received from the outside into wirelessly transmittable data and thereafter, may wirelessly transmit the data to at least one of the plurality of receiving apparatuses  200  and  210 . 
     For example, the transmitting apparatus  100  may select one or more receiving apparatuses that will receive the media signal between the first and second receiving apparatuses  200  and  210  from the user and may wirelessly transmit the media signal received from the outside to the receiving apparatus selected by the user. 
     For this, the transmitting apparatus  100  may include a plurality of wireless transmitting units (not shown) corresponding to the first and second receiving apparatuses  200  and  210 . The plurality of wireless transmitting units (not shown) may wirelessly transmit the video and audio data to the receiving apparatuses corresponding thereto. 
     The wireless communication standards for data transmission/reception may be the same as or different from each other in the plurality of receiving apparatuses  200  and  210 . For example, in accordance with the performance or installation position of each of the first and second receiving apparatuses  200  and  210 , the wireless communication standards for the first and second receiving apparatuses  200  and  210  to receive data may be established to be different from each other. 
     Meanwhile, the transmitting apparatus  100  may include a number smaller than the number of the first and second receiving apparatuses  200  and  210 , for example, one wireless transmitting unit (not shown) and in this case, the transmitting apparatus  100  may wirelessly transmit the data by using multi-channel communication, that is, a plurality of channels corresponding to the first and second receiving apparatuses  200  and  210 . 
     According to the embodiment of the present invention, the first receiving apparatus  200  may transmit the signal inputted from the external apparatus  310  to the transmitting apparatus  100  and the transmitting apparatus  100  may wirelessly transmit the received signal to the second receiving apparatus  210 . 
     As a result, the second receiving apparatus  210  that is away from the first receiving apparatus  200  receives the signal outputted from the external apparatus  310  connected to the first receiving apparatus  200  through the transmitting apparatus  100  connected through the wireless network and may output the video or audio corresponding to the relevant signal. 
     Further, the first receiving apparatus  200  may transmit the signal stored in the storage medium  311  to the transmitting apparatus  100  and the transmitting apparatus  100  may wirelessly transmit the received signal to the second receiving apparatus  210 . 
     As a result, the second receiving apparatus  210  that is away from the first receiving apparatus  200  receives the signal stored in the storage medium  311  of the first receiving apparatus  200  through the transmitting apparatus  100  connected through the wireless network. 
     The storage medium  311  may be connected to or provided in the first receiving apparatus  200  as shown in  FIG. 7 . 
     In  FIG. 7 , the embodiment of the present invention is described by using the case in which the first and second receiving apparatuses  200  and  210  are connected to the transmitting apparatus  100  through the wireless network as an example, but the present invention is not limited thereto and three or more receiving apparatuses may be connected to the transmitting apparatus  100  through the wireless network to transmit and receive the signal. 
       FIG. 8  is a block diagram illustrating a configuration of a transmitting/receiving system according to a third embodiment of the present invention. The same operations among the operations of the transmitting/receiving system shown in  FIG. 8  as the operations described by referring to  FIGS. 1 to 7  will not be described below. 
     Referring to  FIG. 8 , a display apparatus  600  according to the embodiment of the present invention may include the receiving apparatus  200  having the above-mentioned configuration and a display module  610 . 
     That is, the transmitting apparatus  100  receives the media signal from the outside and wirelessly transmits the received media signal to the receiving apparatus  200  and the receiving apparatus  200  provided in the display apparatus  600  processes the wirelessly transmitted data into a video signal of a displayable format to output the processed data to the display module  610 . 
     The display module  610  may display a video by using the video signal inputted from the receiving apparatus  200 . For this, the display module  610  may include display panels (not shown) of various display types such as a liquid crystal display (LCD), a plasma display panel (PDP), an electro luminescent display (ELD), a vacuum fluorescent display (VFD), etc. 
     Meanwhile, as shown in  FIG. 8 , the first external apparatus  300  and the first storage medium  301  may be connected to the transmitting apparatus  100  and the second external apparatus  310  and the second storage medium  311  may also be connected to the display apparatus  600 . 
     Further, the signal processing method according to the present invention may be stored in a computer-readable recording medium by being produced as a program to be executed in a computer. An example of the computer-readable recording medium includes a ROM, a RAM, a CD-ROM, a magnetic tape, a floppy disk, an optical data storage, etc. 
     According to the embodiment of the present invention, by storing the signal inputted into the transmitting apparatus or the receiving apparatus by using the wireless network between the broadcast transmitting and receiving apparatuses, it is possible to efficiently store and manage the video or audio signal inputted from the external apparatus. 
     The computer-readable recording media are distributed on computer systems connected through a network, and thus a computer-readable code may be stored and executed by a distribution scheme. In addition, a functional program, a code, and code segments for implementing the broadcast receiving method will be easily interred by programmers skilled in the art. 
     Each of the devices described above may include one or more controllers or control units to interface with various components and to execute the methods described herein. 
     Although preferred embodiments of the present invention have been illustrated and described, the present invention is not limited to the above-mentioned embodiments and various modified embodiments can be available by those skilled in the art without the scope of the appended claims of the present invention. In addition, these modified embodiments should not be appreciated separately from technical spirits or prospects.