# US 2021/0243497 A1 · Broadcast receiving apparatus

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- Number: US 2021/0243497 A1
- Document ID: US20210243497A1
- Status: Published application
- Kind: A1
- Application number: 17/239,736
- Filed: 2021-04-26
- Published: 2021-08-05
- Earliest claimed: 2016-06-07
- Assignees: Maxell, Ltd.
- Applicants: Maxell, Ltd.
- Inventors: Takuya SHIMIZU; Kazuhiko YOSHIZAWA; Yasunobu HASHIMOTO; Nobuo MASUOKA
- Web page: https://patentgrep.com/patent/US20210243497A1

## CPC

- 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)}
- G06F 3/1454: {involving copying of the display data of a local workstation or window to a remote workstation or window so that an actual copy of the data is displayed simultaneously on two or more displays, e.g. teledisplay}
- G09G 5/14: Display of multiple viewports
- H04H 60/13: Arrangements for device control affected by the broadcast information
- H04H 60/18: on copying information
- H04H 60/23: using cryptography, e.g. encryption, authentication, key distribution
- H04H 60/27: Arrangements for recording or accumulating broadcast information or broadcast-related information
- H04N 5/765: Interface circuits between an apparatus for recording and another apparatus
- H04N 5/913: for scrambling {; for copy protection}
- H04N 21/4345: {Extraction or processing of SI, e.g. extracting service information from an MPEG stream}
- H04N 21/44: Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N 21/6377: directed to server {(one-way streaming services wherein the source is controlled by the destination H04L65/613)}
- H04N 21/6582: {Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number (arrangements where receivers interact with the broadcast H04H20/38)}
- H04N 21/433: Content storage operation, e.g. storage operation in response to a pause request, caching operations
- H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H04H: BROADCAST COMMUNICATION (multiplex communication H04J; pictorial communication aspects of broadcast systems H04N)

## Abstract

In a broadcast receiving apparatus including: a broadcast receiving unit configured to receive control information regarding contents of digital broadcasting and content protection for the contents; an accumulation unit configured to accumulate the contents received by the broadcast receiving unit; a video output unit configured to output video of the contents received by the broadcast receiving unit or video of the contents accumulated by the accumulation unit to external equipment; an interface; and a control unit, switching of content protecting processes are executed in accordance with the number of pixels of video of contents in a first video outputting process state to output contents to external equipment without accumulation, a second video outputting process state to output contents to external equipment after an accumulating process, a copying process state, and a moving process state, and control is executed.

## Claims

### Claim 1

A content receiving apparatus comprising:
a first content receiver configured to receive contents and control information regarding content protection for the contents received by the first content receiver, which are transmitted in a first transmission method;
a second content receiver configured to receive contents and control information regarding content protection for the contents received by the second content receiver, which are transmitted in a second transmission method, the second transmission method being different from the first transmission method;
a storage configured to store the contents received by the first content receiver or the second content receiver;
a first video output interface configured to output, to first external equipment, video of the contents received by the first content receiver or the second content receiver, or video of the contents stored by the storage;
a second video output interface configured to output, to second external equipment, video of the contents received by the first content receiver or the second content receiver, or video of the contents stored by the storage, the second video output interface being a different type of interface from the first video output interface; and
a controller,
wherein a first type of content protection is applicable for the first video output interface,
wherein at least two levels of content protection in the first type of content protection are applicable for the first video output interface,
wherein a second type of content protection is applicable for the second video output interface, the second type of content protection being different from the first type of content protection,
wherein at least two levels of content protection in the second type of content protection are applicable for the second video output interface,
wherein control states of the storage, the first video output interface, and the second video output interface by the controller include:
a first video outputting process state in which the storage does not store the contents and the contents are outputted from the first video output interface or the second video output interface to the first external equipment;
a storing process state in which the storage stores the contents; and
a second video outputting process state in which the contents are outputted from the first video output interface or the second video output interface to the second external equipment after a storing process for the contents by the storage,
wherein the controller is configured to execute switching of the levels of the content protecting processes for the first video output interface in accordance with a number of pixels of the video of the contents received by the first content receiver in the first video outputting process state,
wherein the controller is configured to execute switching of the levels of the content protecting processes for both the first video output interface and the second video output interface in accordance with the number of pixels of the video of the contents in the second video outputting process state,
wherein the number of pixels of a threshold value to execute the switching of the levels of the content protecting processes is equal between the first video outputting process state and the second video outputting process state,
wherein the protecting process in the first video outputting process state and the second video outputting process state for the contents with a number of pixels that is equal to or less than the number of pixels of the threshold value in the contents received by the first content receiver is common to the protecting process in the first video outputting process state and the second video outputting process state for the contents received by the second content receiver, for each of the first video output interface and the second video output interface, and
wherein the first video output interface is an HDMI interface.

### Claim 2 (depends on 1)

The content receiving apparatus according to claim 1,
wherein the at least two levels of content protection in the second type of content protection include DTCP-IP content protection and DTCP2 content protection.
