公开(公告)号：US08942541B2

公开(公告)日：2015-01-27

申请号：US13664989

申请日：2012-10-31

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Taiji Sasaki ,  Minehisa Nagata ,  Masaya Yamamoto ,  Takahiro Yamaguchi

IPC: H04N5/783 ,  H04N5/913 ,  G11B27/00 ,  G11B27/10 ,  G11B27/32 ,  H04N5/85 ,  H04N9/804 ,  H04N9/806 ,  H04N9/82

CPC classification number: H04N5/913 ,  G11B27/005 ,  G11B27/105 ,  G11B27/323 ,  G11B2220/2541 ,  H04N5/85 ,  H04N9/8042 ,  H04N9/8063 ,  H04N9/8205 ,  H04N9/8211 ,  H04N9/8227 ,  H04N2005/91357

Abstract: A recording medium enables special playback processing although part of the AV stream recorded therein is transformed. An AV stream, a first EP map, and a second EP map are recorded on the recording medium. In the AV stream, a part of the multiplexed stream including a first video stream and a second video stream is transformed. The first EP map indicates one or more entry points of the first video stream and the second EP map indicates one or more entry points of the second video stream. TS packets constituting I-pictures of the first video stream are indicated by every 4N-th entry point in the first EP map, and TS packets constituting I-pictures of the second video stream are indicated by the entry points whose presentation time is closest to the presentation time of any one of the every 4N-th entry point in the first EP map.

Abstract translation: 尽管其中记录的AV流的一部分被变换，但记录介质能够进行特殊的重放处理。 AV流，第一EP图和第二EP图记录在记录介质上。 在AV流中，包括第一视频流和第二视频流的多路复用流的一部分被变换。 第一EP映射表示第一视频流的一个或多个入口点，而第二EP映射表示第二视频流的一个或多个入口点。 构成第一视频流的I图像的TS分组由第一EP图中的每第4N个入口点指示，构成第二视频流的I图像的TS分组由呈现时间最接近的入口点指示 第一EP图中每4N入口点中的任何一个的呈现时间。

公开(公告)号：US11246021B2

公开(公告)日：2022-02-08

申请号：US16793493

申请日：2020-02-18

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Kaoru Yokota ,  Takayuki Fujii ,  Akihito Takeuchi ,  Kou Ishii ,  Minehisa Nagata ,  Toshihisa Nakano

IPC: H04W4/48 ,  H04L12/40

Abstract: An electronic control unit includes: a first determination unit which determines whether a message received is an address claim message; a second determination unit which determines, when it is determined that the message received is an address claim message, whether a device name included in the address claim message received is a predetermined device name; and a third determination unit which performs a predefined determination process, when it is determined that the device name included in the address claim message received is the predetermined device name, and determine whether the address claim message received is an unauthorized message according to a result of the predefined determination process.

公开(公告)号：US11252179B2

公开(公告)日：2022-02-15

申请号：US17466207

申请日：2021-09-03

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroshi Amano ,  Yusuke Nemoto ,  Minehisa Nagata ,  Yosuke Tajika

IPC: H04L29/06 ,  G06F21/71

Abstract: A risk analyzer analyzing risk of a system including N (natural number greater than or equal to 2) elements connected includes: an inputter receiving, as inputs, a cost of each N element for increasing a safety degree against a threat to security, a connection relationship of at least part of the N elements, an entry point being an element serving as an entry to the system, and a defense target being an element protected in the system; an identifier identifying, based on the cost of each N element and the connection relationship, a target element of one or more elements requiring a minimum total cost necessary for cutting off a target path from the entry point to the defense target by increasing a safety degree of one or more elements on the target path to a threshold value or more; and an outputter outputting element information indicating the target element.