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公开(公告)号：JP2011257917A
公开(公告)日：2011-12-22
申请号：JP2010131013
申请日：2010-06-08
Inventor： ISHII KAZUO , IKEDA NOZOMI , TAKAHASHI YOSHIKAZU
CPC classification number: G06Q30/0282
Abstract: PROBLEM TO BE SOLVED: To improve the accuracy of recommending a content to a user.SOLUTION: A content recommendation device 12 according to one embodiment comprises: a clustering unit 28 for generating a cluster set including a plurality of clusters by clustering usage situations of respective contents by a plurality of users based on a predetermined index; an effectiveness determination unit 32 for determining the effectiveness of the clustering by evaluating the correlativity between the content and the cluster; a popular content determination unit 30 for determining the degree of popularity of each content of the cluster to which a user to be recommended belongs; and a recommended content determination unit 34 for determining a content to be recommended by evaluating the degree of popularity in addition to the effectiveness of the cluster set.
Abstract translation: 要解决的问题：提高向用户推荐内容的准确性。 解决方案：根据一个实施例的内容推荐设备12包括：聚类单元28，用于基于预定索引，通过聚合多个用户的各个内容的使用情况来生成包括多个聚类的聚类集; 有效性确定单元32，用于通过评估内容和集群之间的相关性来确定聚类的有效性; 用于确定要被推荐的用户所属的群集的每个内容的受欢迎程度的流行内容确定单元30; 以及推荐内容确定单元34，用于除了集群的有效性之外，通过评估流行程度来确定要推荐的内容。 版权所有（C）2012，JPO＆INPIT
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公开(公告)号：JP2000163871A
公开(公告)日：2000-06-16
申请号：JP33543198
申请日：1998-11-26
Applicant: SONY CORP
Inventor： KOBASHI TAKASHI , OGINO AKIRA , NAKAMURA SHINJI , KIMURA YUJI , IKEDA NOZOMI , NAKAMURA OSAMU
Abstract: PROBLEM TO BE SOLVED: To simplify hardware and to reduce quality deterioration in an information signal by rewriting copyright information added with an electronic watermark in a signal state of a baseband only in the signal state of the baseband. SOLUTION: In the case that copy control information is of the state of 'Copy Once' related to a receiving signal from a set box 100, when the signal is recorded with a compliant recorder 200, CGMS information is rewritten from [10] to [11]. In a compliant reproducing device 300 reproducing image information recorded in a RAM 30, when the electronic watermark information WM added to analog image information to be outputted is 'Copy Once' in the state of the baseband signal, it is rewritten to (No More Copy). In the recorder 200 receiving the image information from the reproducing device 300, by checking the electronic watermark information WM, the (No More Copy) is discriminated, and copying is prohibited.
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公开(公告)号：JP2000156641A
公开(公告)日：2000-06-06
申请号：JP33093998
申请日：1998-11-20
Applicant: SONY CORP
Inventor： IKEDA NOZOMI , OGINO AKIRA , MORIWAKI HISAYOSHI
IPC: H04N5/913 , G06T1/00 , G11B20/00 , H03M7/00 , H04J3/00 , H04L12/40 , H04L12/64 , H04N1/387 , H04N7/08 , H04N7/081 , H04N7/088
Abstract: PROBLEM TO BE SOLVED: To transmit 1st and 2nd additional information sets superimposed on an information signal while minimizing deterioration in the information signal. SOLUTION: An output video signal is divided into two areas; 1st area and 2nd area. An electronic watermark information generating section (WM generating section) 3 generates a spread spectrum signal (electronic watermark information) as the 1st additional information for superimposing it onto the 1st area of the video signal. An electronic watermark information superimposing section (WM superimposing section) 2 superimposes the spread spectrum signal onto the 1st area of the video signal. The 2nd additional information is superimposed newly on the 2nd area of the video signal in the case that, for example, this video signal is to be recorded on a recording medium.
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公开(公告)号：JP2000057686A
公开(公告)日：2000-02-25
申请号：JP22575298
申请日：1998-08-10
Applicant: SONY CORP
Inventor： IKEDA NOZOMI , KOBASHI TAKASHI
IPC: G06F12/14 , G06F21/10 , G06F21/16 , G06T1/00 , G09C1/00 , G09C5/00 , G11B20/10 , H04N5/91 , H04N7/08 , H04N7/081 , H04N19/467 , H04N19/60 , H04N19/85 , H04N7/30
Abstract: PROBLEM TO BE SOLVED: To surely and properly perform a duplication control with respect to an information signal without generating inconvenience such as the enlarging of the hardware scale of a recorder and the deterioration of the information signal. SOLUTION: This recording device accepts the supplying of an information signal on which electronic watermark information indicating a state in which any more duplication other than this time is inhibited are superposed as duplication generation information instead of electronic watermark information indicating a state in which the duplication of one time is possible and, moreover, to which CGMS information are added through an IEEE 1394 interface 31. The electronic watermark information and the CGMS information superposed on the accepted information signal are detected by a WM decoding part 38, A CGMS decoding part 37 and these detected outputs are supplied to a control part 30, which when the electronic watermark information indicates a state in which any more duplication other then this time is inhibited and the CGMS information indicates a state in which the duplication of one time is possible, the device executes the duplicating of the information signal based on the CGMS information.
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公开(公告)号：JPH1175167A
公开(公告)日：1999-03-16
申请号：JP23469697
申请日：1997-08-29
Applicant: SONY CORP
Inventor： IKEDA NOZOMI , OGINO AKIRA
IPC: H04N5/445 , G06F21/10 , G06T7/60 , H04N1/387 , H04N5/208 , H04N5/765 , H04N5/781 , H04N5/91 , H04N5/913 , H04N7/08 , H04N7/081 , H04N19/00 , G06T9/20
Abstract: PROBLEM TO BE SOLVED: To superimpose the additional information on a video signal at a high level as much as possible and without affecting the video signal given to a reproduced image by detecting an edge of the video signal and superimposing the additional information on the video signal with a higher superimposition level set at the detected edge part than other parts of the video signal. SOLUTION: The edge detection output is supplied to a superimposition level control part 22 from an edge detection part 21. The part 21 detects the edge of an analog signal sent from a D/A converter 19. When this edge detection is performed at the part 21 by the primary differentiation, the edge detection output functions to raise the superimposition level of the additional information at both sides of a relevant segment. At the edge part of a video signal, the pixel level has a big change and accordingly a higher superimposition level of the additional information set at this edge part than other parts is not conspicuous on a reproduced image. Therefore, the additional information can be easily detected.
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Patent Agency Ranking
公开(公告)号：JPH1175166A
公开(公告)日：1999-03-16
申请号：JP23469597
申请日：1997-08-29
Applicant: SONY CORP
Inventor： IKEDA NOZOMI , OGINO AKIRA , MORIWAKI HISAYOSHI , KOBASHI TAKASHI , KIMURA YUJI
IPC: H04N5/91 , G06F21/10 , H03M7/30 , H04N1/00 , H04N5/913 , H04N5/92 , H04N7/08 , H04N7/081 , H04N9/804 , H04N19/467 , H04N19/60 , H04N19/625 , H04N19/91 , H04N7/30
Abstract: PROBLEM TO BE SOLVED: To prevent deterioration of a reproduced image that is caused by the superimposed additional information by changing the superimposition level of the additional information within plural pixel units so as to define a superimposition pattern as a prescribed fixed pattern within plural pixel units and then superimposing the additional information on a video signal. SOLUTION: The spread spectrum(SS) signal obtained at an SS duplication prevention control signal generation part 22 is controlled at a superimposition level control part 23 so as to secure a fixed superimposition pattern in each block BL. Then the SS signal is supplied to an addition part 12 and added to and subtracted from a video signal Vi to be superimposed on the signal Vi. Thus, the conspicuousness of superimposition levels can be reduced in every block owing to such superposition pattern. Thereby, the conspicuousness of the superimposition pattern can be reduced as much as possible for a reproduced image when the additional information of a minute level is superimposed on the video signal every plural pixels. In addition, the additional information can be easily detected.
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7.发明专利
公开(公告)号：JP2003136456A
公开(公告)日：2003-05-14
申请号：JP2001341079
申请日：2001-11-06
Applicant: SONY CORP
Inventor： IKEDA NOZOMI
Abstract: PROBLEM TO BE SOLVED: To detect a brightness of surrounding environment without providing an illuminance meter. SOLUTION: The robot device 1 pickups a plurality of images of a specified region by a CCD camera 20 and judges the brightness of the environment based on the brightness of the images. When the environment is dark, the robot device 1 lights a head light 25 to illuminate the surrounding area. In this case, the quantity of light can be changed in accordance with the brightness level.
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公开(公告)号：JP2001075870A
公开(公告)日：2001-03-23
申请号：JP24837599
申请日：1999-09-02
Applicant: SONY CORP
Inventor： IKEDA NOZOMI
Abstract: PROBLEM TO BE SOLVED: To make surely and properly performable a duplicate generation restriction control for an information signal even when a storage device is non-compliant interposed. SOLUTION: In an STB(set top box) 2, when opposite equipment connected through an equipment information detecting part 44 with an analog output terminal 43 of its own device which receives the supply of an analog video signal from the STB 2 is a non-compliant equipment and duplicate restriction information superimposed on the analog video signal to be outputted as electronic watermark information indicates 'copy once (duplicable for one generation)', this is rewritten to 'no more copy', and the analog video signal on which the duplicate restriction information indicating 'no more copy' is superimposed is outputted.
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公开(公告)号：JP2000244725A
公开(公告)日：2000-09-08
申请号：JP4338299
申请日：1999-02-22
Applicant: SONY CORP
Inventor： KOBASHI TAKASHI , IKEDA NOZOMI
Abstract: PROBLEM TO BE SOLVED: To superimpose additional information on image signals while improving the secrecy of the additional information and improving the detection performance of the additional information from the image signals in the case of superimposing the additional information on the image signals. SOLUTION: The plural pieces of specified patterns corresponding to the additional information are superimposed in different partial areas AR1, AR2 and AR3 inside one frame. In this case, the partial areas in which the respective plural pieces of the specified patterns are to be superimposed are rotated in an order decided beforehand so as to be different for each frame. Also, in each cycle of the rotation, the respective phases of the plural specified patterns are inverted.
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公开(公告)号：JP2000149413A
公开(公告)日：2000-05-30
申请号：JP32109798
申请日：1998-11-11
Applicant: SONY CORP
Inventor： KOBASHI TAKASHI , OGINO AKIRA , NAKAMURA SHINJI , KIMURA YUJI , IKEDA NOZOMI , NAKAMURA OSAMU
IPC: G11B20/10 , G06F21/24 , G06T1/00 , G11B20/00 , H04L12/40 , H04L12/64 , H04N5/775 , H04N5/85 , H04N5/913 , H04N9/79
Abstract: PROBLEM TO BE SOLVED: To make a duplicated generation restriction control appropriate by managing another additional information by rewriting based on the additional information by means of an electronic watermark information. SOLUTION: A set top box (receiver) receiving a video signal rewrites and outputs CGMS information of the output video information based on the electronic watermark information so that no contradiction occurs between the CGNS information and the electronic watermark information as the other additional information. Similarly, a compliant reproducing device 300 rewrites and outputs CGMS information of the reproducing output video information. When it is recorded by a compliant recording device 200, if the additional information by the electronic watermark information of the video signal from the set top box (receiver) 100 is in the state of 'a signal duplication allowed', the CGMS information is rewritten into '11' (duplication inhibited) based on the watermark information, and moreover, the watermark information is rewritten from 'a signal duplication allowed' into the state of 'no further duplication allowed'.
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