TRANSMISSION APPARATUS, CONTROL METHOD FOR THE SAME, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

• US 20150281255A1
• Filed: 03/16/2015
• Published: 10/01/2015
• Est. Priority Date: 03/26/2014
• Status: Abandoned Application

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Watanabe, Ryo
• Application Number:
  US14/659,173
• Publication Number:
  US 20150281255A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 21/10 Protecting distributed programs or content, e.g. vending or licensing of copyrighted material protection in video systems or pay television H04N7/16 ; Digital rights management [DRM]
• CPC Class Codes: H04L 12/2816 Controlling appliance services of a home automation network by calling their functionalities arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station; in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom H04Q9/00
• CPC Class Codes: H04L 2012/2849 Audio/video appliances
• CPC Class Codes: H04L 67/60 Scheduling or organising the servicing of application requests, e.g. requests for application data transmissions using the analysis and optimisation of the required network resources admission control or resource allocation H04L47/70
• CPC Class Codes: H04N 21/43637 involving a wireless protocol, e.g. Bluetooth, RF or wireless LAN [IEEE 802.11] arrangements for wireless networking or broadcasting of information in indoor or near-field type systems H04B10/114
• CPC Class Codes: H04N 21/4367 Establishing a secure communication between the client and a peripheral device or smart card
• CPC Class Codes: H04N 21/45455 applied to a region of the image
• CPC Class Codes: H04N 21/4627 Rights management associated to the content security in data switching network management H04L41/28; security management or policies for network security H04L63/20; access security in wireless networks H04W12/08

Abstract

A transmission apparatus having a display unit decides whether a receiving apparatus supports predetermined copyright protection technology, sets, with respect to an image that is displayed on the display unit, a scope of the image to serve as a target for copyright protection, determines a scope of the image to serve as a target for transmission, based on the scope set as a target for copyright protection, in a case where it is decided that the receiving apparatus does not support the predetermined copyright protection technology, and transmits an image of the determined scope as a target for transmission to the receiving apparatus.

Claims

1. A transmission apparatus comprising:

a display unit;

a decision unit configured to decide whether a receiving apparatus supports predetermined copyright protection technology;

a setting unit configured to set, with respect to an image that is displayed on the display unit, a scope of the image to serve as a target for copyright protection;

a determination unit configured to determine a scope of the image to serve as a target for transmission, based on the scope set as a target for copyright protection by the setting unit, in a case where it is decided by the decision unit that the receiving apparatus does not support the predetermined copyright protection technology; and

a transmission unit configured to transmit an image of the scope determined by the determination unit as a target for transmission to the receiving apparatus.

2. The transmission apparatus according to claim 1, wherein in a case where the scope serving as the target for copyright protection has been set by the setting unit in the image that is displayed on the display unit, the determination unit determines a portion of the image that is not the scope serving as the target for copyright protection as the scope serving as the target for transmission.

3. The transmission apparatus according to claim 1, wherein in a case where the whole image that is displayed on the display unit is set by the setting unit as the scope serving as the target for copyright protection, the transmission unit does not transmit the image that is displayed on the display unit.

4. The transmission apparatus according to claim 1, wherein the setting unit sets, with respect to an image that is displayed on the display unit, a scope of the image that includes a predetermined object, as the scope serving as the target for copyright protection.

5. The transmission apparatus according to claim 1, wherein the setting unit sets, with respect to an image that is displayed on the display unit, a scope of the image that is displayed by a predetermined application, as the scope serving as the target for copyright protection.

6. The transmission apparatus according to claim 1, wherein in a case where the image that is displayed on the display unit includes a predetermined object or includes a scope that is displayed by a predetermined application, the setting unit sets the entire image as the scope serving as the target for copyright protection.

7. The transmission apparatus according to claim 1, wherein in a case where the scope serving as the target for copyright protection has been set by the setting unit in the image that is displayed on the display unit, the determination unit substitutes a dummy image for an image of the scope serving as the target for copyright protection, and determines the entire image that is displayed on the display unit after the substitution as the scope serving as the target for transmission.

8. The transmission apparatus according to claim 1, wherein the transmission unit does not transmit an image of a scope that is not the scope serving as the target for transmission, even when an image transmission request is received from the receiving apparatus.

9. The transmission apparatus according to claim 1, wherein in a case where the scope serving as the target for copyright protection is set by the setting unit with respect to the receiving apparatus in the image that is displayed on the display unit, the transmission unit causes the receiving apparatus to resign from a multicast group.

10. The transmission apparatus according to claim 1, wherein in a case where the scope serving as the target for copyright protection is not set by the setting unit in the image that is displayed on the display unit, the transmission unit causes the receiving apparatus to join a multicast group.

11. The transmission apparatus according to claim 1, wherein the transmission unit performs transmission to the receiving apparatus based on Real Time Streaming Protocol (RTSP).

12. The transmission apparatus according to claim 11, wherein in a case where the entire image that is displayed on the display unit is set by the setting unit as the scope serving as the target for copyright protection, the transmission unit transmits a PAUSE request message.

13. The transmission apparatus according to claim 1, wherein the transmission unit communicates over Real-time Transport Protocol (RTP) with the receiving apparatus.

14. The transmission apparatus according to claim 13, wherein in a case where the entire image that is displayed on the display unit is set by the setting unit as the scope serving as the target for copyright protection, the transmission unit stops data transmission over RTP.

15. The transmission apparatus according to claim 1, wherein the predetermined copyright protection technology is High-bandwidth Digital Content Protection (HDCP).

16. A method of controlling a transmission apparatus having a display unit, comprising:

a decision step of deciding whether a receiving apparatus supports predetermined copyright protection technology;

a setting step of setting, with respect to an image that is displayed on the display unit, a scope of the image to serve as a target for copyright protection;

a determination step of determining a scope of the image to serve as a target for transmission, based on the scope set as a target for copyright protection in the setting step, in a case where it is decided in the decision step that the receiving apparatus does not support the predetermined copyright protection technology; and

a transmission step of transmitting an image of the scope determined in the determination step as a target for transmission to the receiving apparatus.

17. A non-transitory computer-readable storage medium storing a computer program for controlling a computer to execute respective steps of claim 16.