Content transmission device and content transmission method

Abstract

A content transmission device for transmitting a digital content to other device connected via a network, including a receiving unit that receives the digital content accompanied with a piece of copy control information indicating a condition of restricting the digital content from being copied, a communication processing unit that transmits and receives the digital content or various data, or control commands to and from the other device, a connection determining unit that determines whether the other device is present on an intra-residential network connected by the content transmission device, and a control unit that controls the receiving unit, the communication processing unit, and the connection determining unit, in which the control unit does not output the digital content received by the receiving unit from the communication processing unit to the other device in a case where the other device is determined not to be installed at an inside of a residence by using the connection determining unit, thereby, a user who owns a device used in an mobile environment of a note type PC or a portable terminal satisfies a request for intending to access to the content in a household from a traveling destination or in a train in the midst of commutation by using the device.

1 . A content outputting device for outputting a content to an external device connected via a network, the content outputting device comprising:
 a receiving unit that receives the content;   a recording unit that records the received content;   an outputting unit that outputs the content to the external device via the network;   a connection determining unit that determines whether the external device is present at an inside of a residence the same as an inside of a residence of the content transmission device; and   a control unit that controls the receiving unit, the recording unit, and the outputting unit by a determination result of the connection determining unit,   wherein the control unit prevents the received content from being outputted to the external device in a case where the external device is not present at the inside of the residence the same as the inside of the residence of the content transmission device, and enables the recorded content to be outputted to the external device.   
     
     
         2 . The content transmission device according to  claim 1 ,
 wherein the receiving unit receives the content including a piece of remote access restriction for restricting the content from being outputted from the content transmission device to other device which is not present at the inside of the same residence,   wherein the control unit makes the recording unit record the content including the piece of remote access restriction information received at the receiving unit,   wherein the control unit makes the connection determining unit determine whether the other device is present at the inside of the same residence in a case where the piece of remote access restriction information included in the content recorded at the recording unit does not accept a remote access, and   wherein the control unit prevents the outputting unit from outputting the content to the other device in a case where the other device is not present at the inside of the same residence as a result of the determination.   
     
     
         3 . The content transmission device according to  claim 1 , further comprising:
 a communication processing unit that exchanges various data or commands to and from the other device,   wherein the control unit makes the outputting unit transmit a piece of content information which does not include a piece of information concerning the content which is being received by the receiving unit to the other device when the connection determining unit determines that the other device is not present at the inside of the same residence in a case where the communication processing unit receives a request for acquiring the content which is being received by the receiving unit and a piece of content information which is a list of the content which is being recorded or recorded to the recording unit from the other device.   
     
     
         4 . The content transmission device according to  claim 3 , further comprising:
 a timer unit that measures a time period until an elapse of a prescribed time period after the recording unit has recorded the content,   wherein the control unit makes the timer unit start measuring the prescribed period in a case where the recording unit starts recording the content received by the receiving unit, and   wherein the control unit makes the outputting unit output the content to the other device in a case where the piece of remote access restriction information included in the content which is being recorded or recorded to the recording unit indicates that the remote access is accepted, the connection determining unit determines that the other device is not present at the inside of the same residence, and the time period measured by the timer unit elapses for the prescribed time period.   
     
     
         5 . The content transmission device according to  claim 4 , wherein the control unit makes the outputting unit transmit the piece of content information which does not include the piece of information concerning the content at which the time period measured by the timer unit does not reach the prescribed time period in the content which is being recorded or recorded to the recording unit to the other device in a case where the communication processing unit receives the request for acquiring the piece of content information from the other device, and the connection determining unit determines that the other device is not present at the inside of the same residence. 
     
     
         6 . A content transmission method for transmitting a content to other device connected vi a network, the content transmission method comprising:
 receiving the content from a content provision origin;   recording the content;   determining whether the other device is present at an inside of the same residence;   controlling to prohibit the content which is receiving from the content provision origin from being outputted to the other device in a case where the other device is not present at the inside of the same residence as a result of the determination; and   outputting the recorded content to the other device.   
     
     
         7 . The content transmission method according to  claim 6 , further comprising:
 receiving the content including a piece of remote access restriction information restricting the content from being outputted to the other device which is not present at the inside of the same residence;   recording the content including the piece of remote access restriction information;   determining whether the other device is present at the inside of the same residence in a case where the piece of remote access restriction information does not accept a remote access; and   prohibiting the recorded content from being outputted to the other device in a case where the other device is not present at the inside of the same residence as a result of the determination.   
     
     
         8 . The content transmission method according to  claim 6 , wherein a piece of content information which does not include a piece of information concerning the content which is being received is transmitted to the other device when the other device is determined not to be present at the inside of the same residence in a case where a request for acquiring the content which is being received and a piece of content information which is a list of the content which is being recorded or recorded from the other device. 
     
     
         9 . The content transmission method according to  claim 8 , wherein a time period is started to be measured when the received content is started to be recorded, and the content is outputted to the other device in a case where the piece of remote access restriction information which is included in the content which is being recorded or recorded indicates that the remote access is accepted, the other device is determined not to be present at the inside of the same residence, and the measured time period exceeds a prescribed time period. 
     
     
         10 . The content transmission method according to  claim 9 , wherein the piece of content information which does not include the piece of information concerning the content in which the measured time period does not reach the prescribed time period in the content which is being recorded or recorded is transmitted to the other device when the other device is determined not to be present at the inside of the same residence in a case where a request for acquiring the piece of content information is received from the other device. 
     
     
         11 . A content reception device for receiving a content transmitted from a content transmission device connected via a network, the content reception device comprising:
 a receiving unit that receives the content from the content transmission device via the network; and   a control unit that controls the receiving unit,   wherein a piece of remote access restriction information is included in the content recorded to the content transmission device and transmitted to the content reception device, and the control unit enables the reception unit to receive the content in a case where the piece of remote access restriction information indicates that a remote access is not accepted, and the content reception device is determined to be present at an inside of a residence the same as an inside of the residence of the content transmission device by the content transmission device.   
     
     
         12 . A content reception method in a content reception device receiving a content transmitted from a content transmission device connected via a network,
 wherein a piece of remote access restriction information is included in the content recorded in the content transmission device and transmitted to the content reception device, and the content is enabled to be received in a case where the piece of remote access restriction information indicates that a remote access is not accepted, and the content reception device is determined to be present at an inside of the same residence by the content transmission device.