Abstract: A content data delivery system includes a server and a client. The server includes at least one processor configured to implement stored instructions and execute a plurality of tasks. The plurality of tasks include a server side communication task that transmits and receives test data including time information to and from the client, a calculating task that obtains a reference time difference with the client based on the time information of the test data that has been transmitted and received by the server side communication task, and a delivering task that delivers content data including information that indicates reproduction timing to the client. The server or the client includes a correcting task that corrects the reproduction timing of the content data by use of the reference time difference.

Abstract: A content delivery system includes a content transmission apparatus that includes at least one processor configured to implement stored instructions and execute a plurality of tasks. The plurality of tasks include a compression task, a transmission task, and a reception task. The compression task performs compression of content dividing thereof into a fundamental component and an extended component. The transmission task transmits content to a client apparatus. The reception task receives a retransmission request for the content. The transmission task determines, depending on a communication condition, whether to transmit the fundamental component of the content or both the fundamental component and the extended component of the content together. The transmission task, upon the reception task receiving the retransmission request, retransmits only the fundamental component of the content that corresponds to the retransmission request.

Abstract: A content data receiving device is provided with a communication interface, a buffer, and a processor. The processor, in a case in which the sequence included in the content data that has been received by the communication interface is discontinuous, performs a retransmission request to a transmission side after causing the buffer to hold the content data, causes the buffer to keep holding the content data that has been received by the communication interface until receiving content data in a continuous sequence, and, in a case of receiving the content data in a continuous sequence, outputs the content data to a subsequent stage so that the sequence is continuous.

Abstract: A content delivery apparatus includes an external input portion, a content reception portion and a delivery portion. To the external input portion, first content having at least a fundamental component is inputted. The content reception portion receives second content having a fundamental component and an extended component. When delivering the first content, the delivery portion delivers the fundamental component of the first content to a client apparatus more than once.

Abstract: An audio system includes a first audio apparatus that receives a first audio signal with a first number of channels and a second audio apparatus connected to the first audio apparatus via a network. The first audio apparatus includes a signal processing unit configured to generate, on the basis of the first audio signal received from the outside of the first audio apparatus, a second audio signal with a second number of channels larger than the first number of channels, and a communication unit configured to transmit a third audio signal corresponding to a part of the channels in the second audio signal generated by the signal processing unit to the second audio apparatus.

Abstract: An audio system includes a first audio apparatus that receives a first audio signal with a first number of channels and a second audio apparatus connected to the first audio apparatus via a network. The first audio apparatus includes a signal processing unit configured to generate, on the basis of the first audio signal received from the outside of the first audio apparatus, a second audio signal with a second number of channels larger than the first number of channels, and a communication unit configured to transmit a third audio signal corresponding to a part of the channels in the second audio signal generated by the signal processing unit to the second audio apparatus.

Abstract: In a synchronized playback system, a plurality of synchronized playback apparatuses are connected and perform synchronized playback. Each of the plurality of synchronized playback apparatuses includes a playback device that reproduces a content file which is delivered through a network from a delivery server, in which the content file is stored, and a control device that controls the synchronized playback. One of the plurality of synchronized playback apparatuses causes the control device to operate in a case in which the synchronized playback is performed and control the synchronized playback of a plurality of synchronized playback devices, which participate in a synchronized playback group, of the playback devices which are included in the plurality of respective synchronized playback apparatuses.

Abstract: A content data delivery system includes a server and a client. The server includes at least one processor configured to implement stored instructions and execute a plurality of tasks. The plurality of tasks include a server side communication task that transmits and receives test data including time information to and from the client, a calculating task that obtains a reference time difference with the client based on the time information of the test data that has been transmitted and received by the server side communication task, and a delivering task that delivers content data including information that indicates reproduction timing to the client. The server or the client includes a correcting task that corrects the reproduction timing of the content data by use of the reference time difference.

Abstract: A content data receiving device is provided with a communication interface, a buffer, and a processor. The processor, in a case in which the sequence included in the content data that has been received by the communication interface is discontinuous, performs a retransmission request to a transmission side after causing the buffer to hold the content data, causes the buffer to keep holding the content data that has been received by the communication interface until receiving content data in a continuous sequence, and, in a case of receiving the content data in a continuous sequence, outputs the content data to a subsequent stage so that the sequence is continuous.

Abstract: A content delivery system includes a content transmission apparatus that includes at least one processor configured to implement stored instructions and execute a plurality of tasks. The plurality of tasks include a compression task, a transmission task, and a reception task. The compression task performs compression of content dividing thereof into a fundamental component and an extended component. The transmission task transmits content to a client apparatus. The reception task receives a retransmission request for the content. The transmission task determines, depending on a communication condition, whether to transmit the fundamental component of the content or both the fundamental component and the extended component of the content together. The transmission task, upon the reception task receiving the retransmission request, retransmits only the fundamental component of the content that corresponds to the retransmission request.

Abstract: In a synchronized playback system, a plurality of synchronized playback apparatuses are connected and perform synchronized playback. Each of the plurality of synchronized playback apparatuses includes a playback device that reproduces a content file which is delivered through a network from a delivery server, in which the content file is stored, and a control device that controls the synchronized playback. One of the plurality of synchronized playback apparatuses causes the control device to operate in a case in which the synchronized playback is performed and control the synchronized playback of a plurality of synchronized playback devices, which participate in a synchronized playback group, of the playback devices which are included in the plurality of respective synchronized playback apparatuses.

Abstract: A content delivery apparatus includes an external input portion, a content reception portion and a delivery portion. To the external input portion, first content having at least a fundamental component is inputted. The content reception portion receives second content having a fundamental component and an extended component. When delivering the first content, the delivery portion delivers the fundamental component of the first content to a client apparatus more than once.

Abstract: A manufacturer's in-house server receives serial numbers from BD players, and transmits the received serial numbers to an SCM server. The SCM server collates the serial numbers into a control table, and transmits information to the manufacturer's in-house server such as information showing which dispatch destination and sales outlet each BD player passed through before being installed in a user's home (i.e., distribution information). In accordance with the collated control table, the manufacturer's in-house server then transmits flags that are used to make settings appropriate to each BD player. Each BD player then alters its own settings in accordance with its received flag. For example, a setting may be made to start up an application for an information delivery service (i.e., a delivery service for contents such as moving pictures and the like) that the BD player is to be connected to.

Abstract: In a synchronized playback system, a plurality of synchronized playback apparatuses are connected and perform synchronized playback. Each of the plurality of synchronized playback apparatuses includes a playback device that reproduces a content file which is delivered through a network from a delivery server, in which the content file is stored, and a control device that controls the synchronized playback. One of the plurality of synchronized playback apparatuses causes the control device to operate in a case in which the synchronized playback is performed and control the synchronized playback of a plurality of synchronized playback devices, which participate in a synchronized playback group, of the playback devices which are included in the plurality of respective synchronized playback apparatuses.

Abstract: An external equipment controlling apparatus includes: a connecting unit, connected to an external equipment via an interface to input/receive data into/from the external equipment, the external equipment to which audio data is input and which performs an acoustic process to a sound corresponding to the audio data and causes a speaker to emit the sound; an audio data outputting unit, operable to generate the audio data, and operable to output the audio data to the external equipment; an identification information acquiring unit, configured to acquire identification information for specifying the external equipment from the external equipment; a program acquiring unit, configured to acquire a control program corresponding to the external equipment specified by the identification information from a server via a network; a video data outputting unit, operable to generate video data for displaying a setting screen for setting the acoustic process on a displaying unit, and operable to output the video data to the d

Abstract: A manufacturer's in-house server receives serial numbers from BD players, and transmits the received serial numbers to an SCM server. The SCM server collates the serial numbers into a control table, and transmits information to the manufacturer's in-house server such as information showing which dispatch destination and sales outlet each BD player passed through before being installed in a user's home (i.e., distribution information). In accordance with the collated control table, the manufacturer's in-house server then transmits flags that are used to make settings appropriate to each BD player. Each BD player then alters its own settings in accordance with its received flag. For example, a setting may be made to start up an application for an information delivery service (i.e., a delivery service for contents such as moving pictures and the like) that the BD player is to be connected to.

Abstract: An external equipment controlling apparatus includes: a connecting unit, connected to an external equipment via an interface to input/receive data into/from the external equipment, the external equipment to which audio data is input and which performs an acoustic process to a sound corresponding to the audio data and causes a speaker to emit the sound; an audio data outputting unit, operable to generate the audio data, and operable to output the audio data to the external equipment; an identification information acquiring unit, configured to acquire identification information for specifying the external equipment from the external equipment; a program acquiring unit, configured to acquire a control program corresponding to the external equipment specified by the identification information from a server via a network; a video data outputting unit, operable to generate video data for displaying a setting screen for setting the acoustic process on a displaying unit, and operable to output the video data to the d