Nippon Hoso' Kyokai

Kyocera Corporation

Kddi Corporation

Keigo Majima

Kazuhiro Otsuki

Go Ohtake

Hisayuki Ohmata

Tatsuo Shibata

Toshihiro Uehara

Takeshi Kimura

Masaru Fukushima

Shinsaku Kiyomoto

Arisa Fujii

Shuichi Sugie

Yuki Hironaka

Yusuke Endo

Tomoyuki Inoue

Hideki Kokubun

A receiver includes: a broadcast contents acquisition unit configured to acquire contents from a broadcast signal; a determination unit configured to determine whether a received application is an application whose reference to the contents has been permitted; a recording unit configured to record, in a first storage area, an application whose reference to the contents has been determined to have been permitted by the determination unit, and record, in a second storage area, an application whose reference to the contents has been determined not to have been permitted by the determination unit; an execution unit configured to execute the application recorded in at least one of the first storage area and the second storage area; and a reference refusal unit configured to refuse reference to the contents acquired by the broadcast contents acquisition unit due to execution of an application other than the application recorded in the first storage area.

Receiver, program, and reception method

A receiving device includes: an output unit configured to output content broadcast from a transmitting device; an application execution unit configured to execute an application; a security policy acquiring unit configured to acquire security policy level data sent from the transmitting device with respect to the application, the security policy level data indicating a sorted level of the application; a policy level acquiring unit configured to acquire policy level data sent from the transmitting device with respect to currently broadcast content, the policy level data indicating a sorted level of the currently broadcast content; a determining unit configured to determine whether or not the application is an application to be controlled, based on the policy level data acquired by the policy level acquiring unit and the security policy data of the application acquired by the security policy acquiring unit; and an application control unit configured to instruct the application execution unit to control the application determined to be the application to be controlled.

Receiving device, transmitting device, broadcasting system, receiving method, and non-transitory computer-readable recording medium

Provided is a system far receiving a initialization packet containing an initial vector for initializing stream encryption algorithm and an identifier of a key for decrypting an encrypted stream, initializing a decryption module, and decrypting the encrypted stream, wherein the system stores an identifier of a key which is needed to decrypt a next program in a initialization packet of a current program and informs a user of whether a desired key has been acquired or not at timing close to start time of the next program.

Stream generation method, broadcast receiving apparatus, and display method

A method and apparatus for selectively reproducing and outputting one or several desired fields when effectuating image reproduction at a 2.5-time high speed from a VTR tape that records thereon images of 60 frames/second as converted by the 2-3 pull-down scheme from 24 fields/second images. This apparatus at least includes a frame change detector unit which detects a frame change of the 2-3 pull-down scheme from the significance of a change in luminance level and/or chromaticity level between a reproduced image and its one-field preceding image, a reference field detector unit for detecting, based on a detection span of the frame change detected by the frame change detector unit, a correspondence relation of recording tracks on the VTR tape versus a repeat period or cycle of 2 fields and 3 fields in the 2-3 pull-down scheme, and a storage unit for storing therein the resultant correspondence relation as detected by the reference field detector unit.

High-speed image reproduction method and apparatus

Growing community of inventors

Tokyo, Japan

Keigo Majima