US 10,652,595 B2 · Content transmission device and content transmission method thereof

Abstract

A content transmission device has a first encryption process means that encrypts, by a digital communication interface, a digital content for transmission to a content reception device and encrypts a low-resolution content by a first encryption process; a second encryption process that encrypts a high-resolution content by a second encryption process; and a down-conversion means that down-converts the high-resolution content to the low-resolution content. The content transmission device receives, from a digital reception device, information related to an encryption process of the digital reception device. Then, if the digital reception device supports the second encryption process, the content transmission device transmits the high-resolution content as encrypted by the second encryption process. If the digital reception device does not support the second encryption process, the content transmission device down-converts the high-resolution content and encrypts, by the first encryption process, the down-converted content for transmission.

Claims10

Dependent claims

A content transmission device transmitting a content to a content reception device, the device comprising:

a first encryption process means encrypting the content by a first encryption process;
a second encryption process means encrypting the content by a second encryption process which is different from the first encryption process;
and
a convert means converting the content,
wherein information relevant to the encryption process of the content reception device is received from the content reception device,
in a case where the content reception device supports the second encryption process, the content is encrypted by the second encryption process means to be transmitted, and
in a case where the content reception device does not support the second encryption process, the content is converted to be suitable for the first encryption process, and the converted content is encrypted by the first encryption process to be transmitted.

4 more elements

A content transmission method of transmitting a content to a content reception device from a content transmission device,

the content transmission device including,
a first encryption process means encrypting the content by a first encryption process,
a second encryption process means encrypting the content by a second encryption process which is different from the first encryption process, and
a convert means converting the content,
the method comprising:
a step of allowing the content transmission device to receive information relevant to the encryption process of the content reception device from the content reception device;
a step of allowing the content transmission device to encrypt the content by the second encryption process means to be transmitted, in a case where the content reception device supports the second encryption process;
a step of allowing the content transmission device to convert the content to be suitable for the first encryption process, in a case where the content reception device does not support the second encryption process;
and
a step of allowing the content transmission device to encrypt the converted content by the first encryption process to be transmitted.

7 more elements

Dependencies are inferred from the claim text.

Content transmission device and content transmission method thereof

Life of this patent

Content transmission device and content transmission method thereof

Life of this patent

Abstract

Claims10