专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JP2005157871A Image correction method, image correction apparatus capable of using the method and digital watermark extracting apparatus 审中-公开
标题翻译：图像校正方法，使用方法和数字水印提取装置的图像校正装置
公开(公告)号：JP2005157871A
公开(公告)日：2005-06-16
申请号：JP2003397502
申请日：2003-11-27
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： TAKEUCHI SATORU , TSUJITA KOSUKE , KUNIHAZAMA AKIOMI , INOUE YASUAKI
IPC分类号： G06T1/00 , G06T3/00
摘要： PROBLEM TO BE SOLVED: To solve the problem that distortion occurs when a print image where a digital watermark is embedded is photographed, and therefore it is difficult to correctly detect the digital watermark. SOLUTION: A photographing part 30 photographs and computerizes a print image P where a digital watermark is embedded and a grid pattern image R. An image region judging part 32 judges an original image region in a photographed image. A profile generating part 38 acquires the coordinate values of the vertexes of the respective grids of the grid pattern image R deformed due to lens distortion or fluoroscopy distortion, and generates grid-shaped profile data and registers it in a profile data base 40. An image correcting part 34 corrects distortion which occurs in the original image region of the print image P based on the grid-shaped profile data. A watermark extracting part 36 divides the distortion-corrected original image region into blocks, and detects watermark bits embedded in each block to thereby extract watermark information X. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了解决当嵌入数字水印的打印图像被拍摄时发生失真的问题，因此难以正确地检测数字水印。解决方案：拍摄部分30对嵌入数字水印的打印图像P和网格图案图像R进行拍摄和计算机化。图像区域判断部分32判断拍摄图像中的原始图像区域。轮廓生成部38获取由于镜片失真或荧光透视失真而变形的网格图案图像R的各格栅的顶点的坐标值，并且生成网格状轮廓数据并将其登记在轮廓数据库40中。图像校正部分34基于网格轮廓数据校正在打印图像P的原始图像区域中发生的失真。水印提取部分36将失真校正的原始图像区域划分成块，并检测嵌入在每个块中的水印位，从而提取水印信息X.版权所有：（C）2005，JPO＆NCIPI

2. 发明专利

JP2001243725A DIGITAL DISK 失效
公开(公告)号：JP2001243725A
公开(公告)日：2001-09-07
申请号：JP2001011955
申请日：2001-01-19
申请人： SANYO ELECTRIC CO
发明人： HORI YOSHIHIRO , MATSUYAMA HISASHI , KUNIHAZAMA AKIOMI , ITO NOBURO , TAKAHASHI SEIICHIRO , HIOKI TOSHIAKI , ASANO KENJI , MAMIYA NOBORU , UCHIHARA KAJI , NAKAO KENJI , WASHIMI SATOSHI , TORASAWA KENJI
IPC分类号： G11B20/14 , G11B7/004 , G11B20/12 , H03M7/14
摘要： PROBLEM TO BE SOLVED: To provide a digital disk recorded with digital data in such a manner that the digital data may be reproduced by suppressing low-frequency components. SOLUTION: A digital disk 10 has intermittently disposed plural data areas. Base data is divided to modulation units Xi (i is a natural number, 1

3. 发明专利

JP2003244419A ELECTRONIC WATERMARK EMBEDDING METHOD, ENCODER AND DECODER CAPABLE OF UTILIZING SUCH METHOD 审中-公开
公开(公告)号：JP2003244419A
公开(公告)日：2003-08-29
申请号：JP2002036074
申请日：2002-02-13
申请人： SANYO ELECTRIC CO
发明人： KUNIHAZAMA AKIOMI
IPC分类号： G06T1/00 , H04N1/32 , H04N1/387 , H04N7/08 , H04N7/081 , H04N7/167 , H04N21/835 , H04N21/8358
摘要： PROBLEM TO BE SOLVED: To solve a problem that it is necessary to strengthen the durability of an electronic watermark since various kinds of operation are applied to the contents data embedded with an electronic watermark. SOLUTION: A multiplexer 20 produces L kinds of bit sequences by inserting different initial data to the head of watermark data X. A scrambler 22 respectively scrambles the L kinds of bit sequences and produces L kinds of scrambled watermark data X' and an ECC part 24 adds a parity for an error correction to each of data. An embedding part 26 embeds the L kinds of scrambled watermark data X' into host data V and an SNR calculation part 28 evaluates the durability of the watermark data X concerning each of the host data V embedded with the watermark. A selector 30 selects the data of the strongest durability and outputs them as final embedded host data W. COPYRIGHT: (C)2003,JPO

4. 发明专利

JP2001044842A CODING CIRCUIT AND METHOD THEREFOR 失效
公开(公告)号：JP2001044842A
公开(公告)日：2001-02-16
申请号：JP21526999
申请日：1999-07-29
申请人： SANYO ELECTRIC CO
发明人： KUNIHAZAMA AKIOMI
IPC分类号： H03M7/14
摘要： PROBLEM TO BE SOLVED: To provide a coding circuit that suppresses occurrence of long consecutive same bits, without significantly increasing a bit error rate at recovery of a signal, and to provide its method. SOLUTION: This coding circuit applies GS(guided scrambling) coding to an arbitrary data series to generate a code series, where run length larger than (k) (k is a natural number) is produced with a probability of P (P≪1). When there is a run length larger than the (k), a run length detector detects the run length and a bit inverter inverts a bit '0' into a bit '1' at the midpoint of the run length, to attain NRZI(non-return to zero inversion) modulation.

5. 发明专利

JP2004163855A Electronic watermark embedding method, and encoder and decoder capable of utilizing such method 有权
公开(公告)号：JP2004163855A
公开(公告)日：2004-06-10
申请号：JP2003065808
申请日：2003-03-11
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： KUNIHAZAMA AKIOMI
IPC分类号： G06T1/00 , G06F21/10 , G09C1/00 , G09C5/00 , H04N1/387 , H04N7/08 , H04N7/081 , H04N7/167 , H04N21/8358
摘要： PROBLEM TO BE SOLVED: To provide a technique to reduce errors in detecting an electronic watermark by embedding durable watermarks. SOLUTION: A multiplexer 20 produces L kinds of bit sequences by inserting different initial data to the head of watermark data X. A scrambler 22 respectively scrambles the L kinds of bit sequences and produces L kinds of scrambled watermark data X' and an ECC part 24 adds a parity for an error correction to each of data. An embedding block selecting part 18 selects a block which is to embed the watermark data X' from host data V. An embedding part 26 embeds each of the L kinds of scrambled watermark data X' into a selected block of the host data V and an SNR calculation part 28 evaluates the durability of the watermark data X concerning each of the host data V embedded with the watermark. A selector 30 selects the data of the strongest durability and outputs them as final embedded host data W. COPYRIGHT: (C)2004,JPO

6. 发明专利

JP2004112522A Remote control method, as well as encoding device, decoding device, and remote control system capable of using the method 审中-公开
标题翻译：远程控制方法，如编码设备，解码设备和可使用方法的远程控制系统
公开(公告)号：JP2004112522A
公开(公告)日：2004-04-08
申请号：JP2002273967
申请日：2002-09-19
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： KUNIHAZAMA AKIOMI
IPC分类号： H04N7/08 , G09C5/00 , H04N7/081 , H04N7/15
摘要： PROBLEM TO BE SOLVED: To solve the problem wherein it is difficult to control remotely the presentation by operation of a presenter at the presentation using the Internet. SOLUTION: A presentation executing unit 16 reads a document stored in a document storage unit 24 and executes a presentation using slides. An operation input unit 14 receives input of commands for operating the presentation from a presenter. The presentation executing unit 16 controls the presentation based on these operating commands. A control bit generating unit 18 generates control bits for identifying each of these operating commands. A voice input unit 12 inputs voice of the presenter. A watermark embedding unit 20 embeds the control bits generated by the control bit generating unit 18 for identifying operating commands into voice data acquired by the voice input unit 12. Voice data 21 attached with the control bits are distributed to a decoding device 30 by a communication unit 22. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：为了解决在使用因特网的演示中难以通过演示者的操作来远程控制演示的问题。解决方案：呈现执行单元16读取存储在文档存储单元24中的文档，并使用幻灯片执行演示。操作输入单元14从演示者接收用于操作演示的命令的输入。呈现执行单元16基于这些操作命令控制呈现。控制位产生单元18产生用于识别这些操作命令中的每一个的控制位。语音输入单元12输入演示者的声音。水印嵌入单元20将由控制位生成单元18生成的用于识别操作命令的控制位嵌入由语音输入单元12获取的语音数据中。附加有控制位的语音数据21通过通信被分配到解码设备30 单位22.版权所有（C）2004，JPO

7. 发明专利

JPH10174058A CODING QUANTITY CONTROL DEVICE 失效
公开(公告)号：JPH10174058A
公开(公告)日：1998-06-26
申请号：JP33170696
申请日：1996-12-12
申请人： SANYO ELECTRIC CO
发明人： TSUCHIKANE KOICHI , URANO TEN , KUNIHAZAMA AKIOMI , FUJII HIDEYUKI , ITO NOBURO
IPC分类号： H04N5/92 , H04N1/41 , H04N7/24 , H04N19/00 , H04N19/115 , H04N19/142 , H04N19/149 , H04N19/152 , H04N19/423 , H04N19/85 , H04N19/87
摘要： PROBLEM TO BE SOLVED: To realize encoding of natural image by providing an encoding means for outputting coded data and a coding quantity control means for setting a target per unit segment based on a medium capacity and the number of segments and controlling the coding quantity of the coding data to be outputted by the encoding means. SOLUTION: A free capacity of a recording medium 1 comprising an optical magnetic disk is detected by a medium capacity detecting means 2. The detecting means 2 detects the free capacity by subtracting a recorded data quantity from a total storage capacity. A coding quantity control means 3 finds the number of corresponding segments by entering a recording estimated time, divides the free capacity by the number of segments and finding the target coding quantity per unit segment, and controls the encoding means 4 corresponding to this. Thus obtained coded data is stored in a generated coded quantity detecting means 5. The detecting means 5 feeds back the detected coded quantity to the control means 3 to control so that the coding data quantity per segment approaches to the target coding quantity of the detected coded quantity.

8. 发明专利

JP2004280254A Contents categorizing method and device 审中-公开
公开(公告)号：JP2004280254A
公开(公告)日：2004-10-07
申请号：JP2003068137
申请日：2003-03-13
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： KUNIHAZAMA AKIOMI
IPC分类号： G06T1/00 , G06F17/30
摘要： PROBLEM TO BE SOLVED: To solve the problem that it takes labor and time to classify photographs photographed by a digital camera.
SOLUTION: An attribute extracting part 36 extracts attributes such as a photographic time, place, azimuth, and photographer's personal information from inputted contents. A similarity calculating part 34 calculates the similarity of the inputted contents and central contents decided by a central contents deciding part 32. A classifying part 42 inputs the similarity of the attributes of the contents extracted by the attribute extracting part 36 and the central contents calculated by the similarity calculating part 34, and classifies the inputted contents according to a classification rule stored in a classification rule data base 48. The classifying part 42 registers the contents in a contents data base 46 by associating the identification of the groups of the classification designation following the classification rule with the contents.
COPYRIGHT: (C)2005,JPO&NCIPI

9. 发明专利

JP2004173237A Apparatus and method for embedding electronic watermark, and apparatus and method for extracting electronic watermark 有权
公开(公告)号：JP2004173237A
公开(公告)日：2004-06-17
申请号：JP2003325141
申请日：2003-09-17
申请人： Sanyo Electric Co Ltd , 三洋電機株式会社
发明人： KUNIHAZAMA AKIOMI
IPC分类号： G06T1/00 , G10L11/00 , H04N1/387
CPC分类号： G06T1/0071 , G06T1/0028 , G06T2201/0051 , G06T2201/0052 , G06T2201/0202
摘要： PROBLEM TO BE SOLVED: To embed electronic watermark with strong resistance and reduce the detecting error of electronic watermark. SOLUTION: In a first watermark embedding block 110, a position detection part 12 generates a plurality of candidates of embedded positions P of a first watermark data X. A first watermark embedding part 14 embeds the first watermark data X in the candidates of the embedded positions P of a host data V, selects and outputs a first embedded host data W with strong resistance of watermark. In a second watermark embedding block 120, a changing part 16 scrambles the information on the embedded positions P of the first watermark data X to generate a plurality of candidates of a second watermark data Y'. A second watermark embedding part 18 embeds the candidates in the first embedded host data W, selects and outputs a second embedded host data U with strong resistance. COPYRIGHT: (C)2004,JPO

10. 发明专利

JP2003249859A ENCODING METHOD AND ITS DEVICE, AND DECODING METHOD AND ITS DEVICE 审中-公开
公开(公告)号：JP2003249859A
公开(公告)日：2003-09-05
申请号：JP2002045480
申请日：2002-02-21
申请人： SANYO ELECTRIC CO
发明人： KUNIHAZAMA AKIOMI
IPC分类号： G06F11/10 , H03M13/27 , H03M13/29 , H03M13/45 , H04L1/00
摘要： PROBLEM TO BE SOLVED: To solve the problem of strengthen the noise resistance of encoded data and of reducing bit error rate, when it is decoded. SOLUTION: A GS-APP decoding portion 52 of a GS-decoding portion 50 receives apriori probability related to an information bit u, a parity bit p1 and a parity bit p2 sent from a turbo-decoding portion 60, calculates outside informations and sends them to the turbo-decoding portion 60, when it does a soft decision decoding of a receiving bit y. The outside informations are divided into the information bit u and the first parity bit p1 which are necessary for decoding at a first APP decoding portion 62 and into the second parity bit p2 necessary for decoding at a second APP decoding portion 64 by a demultiplexer 102. A normal turbodecoding is conducted at the turbo-decoding portion 60, and the outside informations calculated by the second APP decoding portion 64 is sent to the GS-decoding portion 50. By cooperation between the GS decoding portion 50 and the turbo-decoding portion 60, the reliability is increased and the bit error rate of the information bit u is decreased. COPYRIGHT: (C)2003,JPO

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式