摘要:
At least one kind of control signal concerning control of contents, added to specific locations inside contents data, is detected as first control information, and at the same time, at least one kind of control information concerning control of contents, embedded inside the contents data by a digital watermark, is detected as second control information. Consistency between the first control information as detected, and the second control information as detected is determined and on the basis of results of the determination, the control of the contents is executed. Thus, it is possible to reduce a possibility of the contents being improperly copied, thereby enabling the control with assurance of still higher safety.
摘要:
A fluid sealing mechanism for sealing fluid being fed into a fluid pressure pocket formed between sliding surfaces which are formed on the opposing surfaces of an article being supported and a support for supporting the article, wherein a ring groove being fitted with a resilient ring for sealing fluid is made in the sliding surface of the support. Under a state where a regulation ring for preventing the resilient ring from jumping out of the ring groove is fitted over the re-silient ring, the regulation ring is fitted in the ring groove along with the resilient ring. When the fluid fed into the fluid pressure pocket reaches a specified pressure, the regulation ring comes into pressure contact with the sliding surface of the support along with the resilient ring, thus preventing the resilient ring from jumping out.
摘要:
A reproducing method and apparatus for receiving and reproducing data and outputting the data into an external device. After reproducing the data, a descrambler corresponding to a type of the reproduced data is selected from a plurality of descramblers and the external device is authenticated by a selected authenticator which is included in a plurality of authenticators for authenticating the external device and corresponds to the selected descrambler, and the data is outputted.
摘要:
A foreign matter detecting and eliminating system detects and eliminates foreign matters included in a fluid, such as a fruit juice containing fibrous materials, a beverage and a liquid medicine. The foreign matter detecting and eliminating system includes: a tubular distribution head 6 having one closed end and one open end connected to a feed line for carrying a fluid and provided with a plurality of axially arranged oblong slits 11; a plurality of main passages 7 having a flat sectional shape and communicating with the interior of the distribution head 6 by means of the oblong slits 11; an optical foreign matter detecting device 14 combined with the main passages 7 to detect foreign matters included in the fluid flowing through the main passages 7; and foreign matter eliminating devices 15 disposed below the foreign matter detecting device 14 with respect to the flowing direction of the fluid and capable operating in response to a foreign matter detection signal provided by the foreign matter detecting device 14 to discharge a predetermined quantity of the fluid containing foreign matters.
摘要:
An automatic tool changing device (30) has a tool storage device (31) with a plurality of tools stored therein, a tool chucking unit (41) and a tool unchucking unit (51) both capable of advancing/retreating between the tool storage device (31) and a tool changing position (P2), and a tool delivery mechanism (61). The tool chucking unit (41) is provided with a tool fastening mechanism (42) for fastening the tool chucking mechanism (24), and the tool unchucking unit (51) is provided with a tool loosening mechanism (52) for loosening the tool chucking mechanism (24). The tool delivery mechanism (61) delivers the tool positioned at a tool delivery position from the tool storage device into the tool fastening mechanism of the tool chucking unit so that the tool is held by the tool fastening mechanism, and delivers the tool retrieved by the tool unchucking unit from the tool unchucking unit to the tool storage device so that the tool is stored by the tool storage device.
摘要:
A digital information recording-reproducing apparatus for recording and reproducing a digital information signal which includes a recording circuit for recording the digital information signal together with control information, and a reproducing circuit for detecting the recorded control information at a time the recorded digital information signal is to be reproduced, and reproducing the recorded digital information signal only if the detected control information satisfies a predetermined condition.
摘要:
A data recording/reproduction apparatus and method are disclosed, in which a recording medium for digitally recording and reproducing a copyrighted signal is prevented from being illegally duplicated and controlled by a duplication control method conforming with the signal input and the internal functions of the apparatus. An image signal is compressed, the compressed data is converted by a first converter into a format adapted for recording in a recording medium, and the data is recorded by a recording unit in the recording medium. The data recording/reproduction apparatus further comprises a first detection unit for detecting the duplication limiting information embedded in the image signal. Further, the input/output of the image information can be suspended in accordance with the duplication limiting information.
摘要:
At recording of a video signal, with electronic watermark information being embedded therein, on a recording medium, a reference signal which is formed differently from the watermark information is inserted to the video signal. At reproduction of the video signal, the luminance of the watermark information is modified based on the reference signal.
摘要:
When a video signal having electronic watermark information embedded therein is recorded on a recording medium, a reference signal is inserted in the video signal at a position different from a position of embedment of the electronic watermark information. The electronic watermark information is embedded in the video signal by alteration of a luminous value of a luminance signal included in the video signal. When the video signal is reproduced from the recording medium, a luminous value of the electronic watermark information is modified based on the reference signal.
摘要:
The present invention relates to an information providing system. More particularly, this invention relates to an information management apparatus capable of reliable management of distributed information and an information providing system employing the same information management apparatus. The information management apparatus comprises a main information reproducing means for reproducing main information recorded in a given recording medium; and a reproduction management means for managing the main information reproducing means for reproducing the main information. The present invention provides a receiving means provided with a means for recording distributed information and control information limiting the number of main information reproducing cycles on a recording medium, and a main information reproducing means provided with a reproduction disabling means for limiting the reproduction of main information.