公开(公告)号：US06775464B2

公开(公告)日：2004-08-10

申请号：US10037793

申请日：2002-01-03

申请人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

发明人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： A playback device 10 generates a PN code with a start timing based on a video sync signal, and generates a PN inverse code which has a reverse polarity to that of the PN code with a timing based on the video sync signal. An anti-duplication control signal is spectrally spread using this PN code, superimposed on the video signal and supplied to a recording device. A PN inverse code which is the same as the PN inverse code used in the playback device is also generated in the recording device based on the video sync signal, and reverse spectral spread is performed using this PN inverse code.

摘要翻译： 回放装置10基于视频同步信号产生具有开始定时的PN码，并且产生具有与基于视频同步信号的定时相比具有与PN码相反极性的PN反码。 使用该PN码对反复制控制信号进行频谱扩展，叠加在视频信号上并提供给记录装置。 基于视频同步信号也在记录装置中产生与重放装置中使用的PN反码相同的PN反码，并使用该PN反码执行反频谱扩展。

公开(公告)号：US06381402B1

公开(公告)日：2002-04-30

申请号：US09636204

申请日：2000-08-10

申请人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

发明人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： The invention intends to secure the control of duplicating information signals. In the duplication control method according to the invention, a main information signal containing a duplication control information transformed into a spread spectrum signal to be superimposed and a duplication control information superimposed by a processing different from the spectrum spreading is transmitted. The duplication control information transformed into a spread spectrum signal is extracted from the main information signal by the reverse spectrum spreading, and the duplication control information superimposed by the different processing is extracted from the main information signal. One information most closest to duplication prohibition is selected as an output duplication control information out of the plural extracted duplication control information. On the basis of the selected output duplication control information, the main information signal is controlled on duplication.

公开(公告)号：US06330393B1

公开(公告)日：2001-12-11

申请号：US08968115

申请日：1997-11-12

申请人： Takashi Usui ,  Takehiro Sugita ,  Akira Ogino

发明人： Takashi Usui ,  Takehiro Sugita ,  Akira Ogino

IPC分类号： H04N5913

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： The invention provides an information duplication prevention method and an information duplication prevention device capable of performing correct and proper duplication prevention. Prior to transmission of the information signal such as video signal, an anti-duplication control signal for preventing duplication of the information signal is transmitted. The reception side for receiving the information signal can arrange the condition for performing duplication prevention control based on the previously received anti-duplication control signal prior to reception of the information signal.

摘要翻译： 本发明提供能够进行正确和适当的复制防止的信息复制防止方法和信息复制防止装置。 在发送诸如视频信号的信息信号之前，发送用于防止信息信号复制的反复制控制信号。 用于接收信息信号的接收侧可以在接收到信息信号之前，基于先前接收到的反复制控制信号来布置用于执行防复制控制的条件。

公开(公告)号：US06453118B2

公开(公告)日：2002-09-17

申请号：US08968118

申请日：1997-11-12

申请人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

发明人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： The level of the spectrally spread anti-duplication control signal to be superimposed on an information signal such as a video signal is changed by using a random number RD generated by a random number generation unit 163. Since it is difficult to follow after the change of the level of the spectrally spread anti-duplication control signal, elimination of the anti-duplication control signal from the information signal is made further difficult. This can reliably provide the anti-duplication control signal to the receiving side.

摘要翻译： 通过使用由随机数生成单元163产生的随机数RD来改变要叠加在诸如视频信号的信息信号上的频谱扩展的反复制控制信号的电平。由于在随机数生成单元163的改变之后难以遵循 频谱扩展的反复制控制信号的电平，信息信号的反复制控制信号的消除进一步困难。 这可以可靠地将反复制控制信号提供给接收侧。

公开(公告)号：US06389137B1

公开(公告)日：2002-05-14

申请号：US08951027

申请日：1997-10-15

申请人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

发明人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

IPC分类号： H04K110

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： A playback device generates a Pseudo-random noise (PN) code sequence repeatedly with a predetermined period in synchronism with a video sync signal. An anti-duplication control signal is spectrally spread using this generated PN code sequence, is superimposed on the video signal, and is output. A PN code sequence having the same timing and code pattern as the PN code sequence used in the playback device is similarly generated based on the video sync signal on the receiving side which receives the output video signal. Using this PN code sequence, reverse spectral spread is performed, the anti-duplication control signal superimposed on the video signal is extracted, and anti-duplication control is performed according to the extracted anti-duplication control signal.

摘要翻译： 重放装置与视频同步信号同步地以预定周期重复产生伪随机噪声（PN）码序列。 使用该生成的PN码序列对反复制控制信号进行频谱扩展，叠加在视频信号上并被输出。 基于接收到输出视频信号的接收侧的视频同步信号，类似地产生具有与重放装置中使用的PN码序列相同的定时和码型的PN码序列。 使用该PN码序列，执行反向频谱扩展，提取叠加在视频信号上的反复制控制信号，并根据提取的反复制控制信号进行反复制控制。

公开(公告)号：US06370320B1

公开(公告)日：2002-04-09

申请号：US09625247

申请日：2000-07-25

申请人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

发明人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： The invention intends to secure the control of duplicating information signals. In the duplication control method according to the invention, a main information signal containing a duplication control information transformed into a spread spectrum signal to be superimposed and a duplication control information superimposed by a processing different from the spectrum spreading is transmitted. The duplication control information transformed into a spread spectrum signal is extracted from the main information signal by the reverse spectrum spreading, and the duplication control information superimposed by the different processing is extracted from the main information signal. One information most closest to duplication prohibition is selected as an output duplication control information out of the plural extracted duplication control information. On the basis of the selected output duplication control information, the main information signal is controlled on duplication.

摘要翻译： 本发明旨在确保复制信息信号的控制。 在根据本发明的复制控制方法中，发送包含变换成要叠加的扩频信号的复制控制信息的主信息信号和通过与频谱扩展不同的处理叠加的复制控制信息。 通过反向扩频从主信息信号中提取变换为扩频信号的复制控制信息，并从主信息信号中提取由不同处理叠加的复制控制信息。 选择最接近复制禁止的一个信息作为多个提取的复制控制信息中的输出复制控制信息。 基于选择的输出复制控制信息，主信息信号被重复地控制。

公开(公告)号：US07027100B2

公开(公告)日：2006-04-11

申请号：US09749212

申请日：2000-12-27

申请人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

发明人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

IPC分类号： H04N7/04 ,  H04N7/167 ,  H04N5/91

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： This invention provides an image transmission method, image anti-duplication method, image anti-duplication device, and image recording medium in which the information for anti-duplication control is superimposed on the video signal without deterioration of the resultant video signal and the information is extracted accurately and quickly to perform anti-duplication control.The output device starts generation of PN code correspondingly to the PN code start timing signal T1 generated based on the video sync signal. One chip interval of the PN code is divided to a plurality of divided chips correspondingly to the PN code inversion timing signal HT, and the original value of the chip is inverted on alternate one divided interval to generate the PN inversion code. The anti-duplication control signal is subjected to spectral spreading using the PN inversion code and superimposed on the video signal. In the recording device which receives supply of the video signal from the output device, inversion spectral spreading is performed based on the PN inversion code generated in the same way as that generated in the output device.

摘要翻译： 本发明提供一种图像传输方法，图像反复制方法，图像反复制装置和图像记录介质，其中防复制控制信息叠加在视频信号上，而不会导致视频信号的恶化，信息是 提取准确，快速地执行反复制控制。 输出装置根据视频同步信号产生的PN码开始定时信号T 1开始生成PN码。 对应于PN码反转定时信号HT，PN码的一个码片间隔被分割成多个分割的码片，并且码片的原始值在交替的一个分割间隔上被反转以产生PN反转码。 使用PN反转码对反复制控制信号进行频谱扩展，并叠加在视频信号上。 在从输出装置接收到视频信号的提供的记录装置中，基于与输出装置中生成的PN反转码相同的方式，进行反向频谱扩展。

公开(公告)号：US06510183B1

公开(公告)日：2003-01-21

申请号：US09140726

申请日：1998-08-27

申请人： Nozomu Ikeda ,  Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

发明人： Nozomu Ikeda ,  Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

IPC分类号： H04L2728

CPC分类号： G11B20/00913 ,  G11B20/00086 ,  G11B20/10527 ,  H04B1/707 ,  H04N5/913 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： A spectrum spread signal spread by a spread code synchronized with a synchronous signal accompanying to an information signal is superimposed on the information signal and is then transmitted and the spectrum spread signal is then detected using the spread code for detection synchronized with the synchronous signal from the information signal on which the spectrum spread signal is superimposed. A value of the information signal on which the spectrum spread signal is superimposed is added or subtracted depending on the chip value of the relevant spread code for detection in each chip of the spread code for detection. The spectrum spread signal is detected by determining whether the added/subtracted value has exceeded the predetermined threshold value or not.

摘要翻译： 通过与伴随信息信号的同步信号同步的扩频码扩频的频谱扩展信号被叠加在信息信号上，然后被发送，然后使用与来自该信号信号的同步信号同步的检测用扩频码来检测频谱扩展信号 叠加有频谱扩展信号的信息信号。 根据用于检测的扩展码的每个芯片中的相关的检测用扩频码的码片值，加上或减去频谱扩展信号叠加的信息信号的值。 通过确定相加/减去的值是否已经超过预定阈值来检测频谱扩展信号。

公开(公告)号：US06487363B1

公开(公告)日：2002-11-26

申请号：US09696845

申请日：2000-10-26

申请人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

发明人： Akira Ogino ,  Takehiro Sugita ,  Takashi Usui

IPC分类号： H04N591

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： A playback device 10 generates a pseudo random noise (PN) code with a start timing based on a video sync signal, and generates a PN inverse code which has a reverse polarity to that of the PN code with a timing based on the video sync signal. An anti-duplication control signal is spectrally spread using this PN code, superimposed on the video signal and supplied to a recording device. A PN inverse code which is the same as the PN inverse code used in the playback device is also generated in the recording device based on the video sync signal, and reverse spectral spread is performed using this PN inverse code.

摘要翻译： 再现装置10基于视频同步信号产生具有开始定时的伪随机噪声（PN）码，并且产生具有与PN码相反极性的PN反码，其基于视频同步信号 。 使用该PN码对反复制控制信号进行频谱扩展，叠加在视频信号上并提供给记录装置。 基于视频同步信号也在记录装置中产生与重放装置中使用的PN反码相同的PN反码，并使用该PN反码执行反频谱扩展。

公开(公告)号：US6112008A

公开(公告)日：2000-08-29

申请号：US968119

申请日：1997-11-12

申请人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

发明人： Takehiro Sugita ,  Akira Ogino ,  Takashi Usui

IPC分类号： G06F21/10 ,  G11B20/00 ,  G11B20/10 ,  H04N5/91 ,  H04N5/913 ,  H04N7/08 ,  H04N7/081 ,  H04N7/167 ,  H04N7/171 ,  H04N21/435 ,  H04N21/442 ,  H04N21/8355

CPC分类号： H04N5/913 ,  H04N2005/91314 ,  H04N2005/91321 ,  H04N2005/91328 ,  H04N2005/9135

摘要： The invention intends to reliably the control of duplicating information signals. In the duplication control method according to the invention, a main information signal containing a duplication control information transformed into a spread spectrum signal to be superimposed and a duplication control information superimposed by a processing different from the spectrum spreading is transmitted. The duplication control information transformed into a spread spectrum signal is extracted from the main information signal by reverse spectrum spreading, and the duplication control information superimposed by the different processing is extracted from the main information signal. Information closest to duplication prohibition is selected as an output duplication control information out of the plural extracted duplication control information. On the basis of the selected output duplication control information, the main information signal is controlled on duplication.

摘要翻译： 本发明意图可靠地控制复制信息信号。 在根据本发明的复制控制方法中，发送包含变换成要叠加的扩频信号的复制控制信息的主信息信号和通过与频谱扩展不同的处理叠加的复制控制信息。 通过反向扩频从主信息信号中提取变换为扩频信号的复制控制信息，并从主信息信号中提取由不同处理叠加的复制控制信息。 选择与复制禁止最接近的信息作为多个提取的复制控制信息中的输出复制控制信息。 基于选择的输出复制控制信息，主信息信号被重复地控制。